Intelligent electrical safety detection and alarm device and method for high-voltage switch cabinet

Abstract

The invention relates to the technical field of high-voltage switch cabinets, and discloses a high-voltage switch cabinet intelligent electrical safety detection alarm device and method.The device comprises a high-voltage switch cabinet, and an electric control assembly, a fire extinguishing assembly and a movable heat dissipation assembly are arranged between the high-voltage switch cabinet and a low-voltage control auxiliary cabinet; the electric control assembly is arranged, specifically, the central controller is powered on to enable the relay to be powered on, the high-voltage switch group is powered on to be used, the use condition of the high-voltage switch group is detected through the temperature and humidity sensor, the smoke sensor and the flame sensor, and if the high-voltage switch group is abnormally high in temperature, the temperature and humidity sensor can detect that the temperature of the high-voltage switch group rises; at the moment, a signal is transmitted to the central controller, the central controller controls the array indicating lamp and the alarm to work to give an alarm, the alarm is transmitted to the mobile equipment terminal through the wireless transmission module, the relay is powered off, then the high-voltage switch group is powered off, and the condition of the high-voltage switch cabinet is known in time. And short-circuit expansion loss caused by continuous electrification is avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of high-voltage switchgear, and particularly to a high-voltage switchgear intelligent electrical safety detection and alarm device and method. Background Technique

[0002] High-voltage switchgear refers to electrical products that play roles such as on-off, control, or protection in the power system for power generation, transmission, distribution, power conversion, and consumption. High-voltage switchgear is classified into several categories such as high-voltage disconnectors and earthing switches, high-voltage load switches, high-voltage automatic reclosing and sectionalizers, high-voltage operating mechanisms, high-voltage explosion-proof distribution devices, and high-voltage switchgear. High-voltage switchgear is a type of switchgear, and there are many precision electrical components in it. Once there are problems in the internal environment of the switchgear, it may cause relatively large economic losses. The existing high-voltage switchgear has the following problems when in use: Due to the complex internal environment of the high-voltage switchgear and potential safety hazards such as electrical overheating, insulation aging, and short circuits, during the use process, since the high-voltage switchgear is placed indoors and usually multiple groups of switchgear are placed side by side and the switchgear is arranged closely, the air fluidity inside the switchgear is small, and the temperature and smoke inside the switchgear cannot be transmitted to the detection device in the first time, so that the detection device cannot detect the changes in smoke and temperature at the first time of a fire, and workers cannot know the fire situation in the first time, thus preventing workers from extinguishing the fire in the first time, leading to the spread of the fire, and then causing multiple groups of switchgear to catch fire simultaneously. Therefore, improvements are needed. Summary of the Invention

[0003] The purpose of the present invention is to provide a high-voltage switchgear intelligent electrical safety detection and alarm device and method to solve the problems raised in the above background technique.

[0004] To achieve the above purpose, the present invention provides the following technical solutions: A high-voltage switchgear intelligent electrical safety detection and alarm device and method, including a high-voltage switchgear, a low-voltage control sub-cabinet is fixedly installed on one side of the high-voltage switchgear, a high-voltage switch group is arranged inside the high-voltage switchgear, and an electric control component, a fire extinguishing component, and a movable heat dissipation component are arranged between the high-voltage switchgear and the low-voltage control sub-cabinet: The electric control component is arranged between the low-voltage control sub-cabinet and the high-voltage switchgear. The electric control component includes a central controller, a fixed module, a temperature and humidity sensor, a smoke sensor, and a flame sensor. By setting the temperature and humidity sensor, the smoke sensor, and the flame sensor, the internal situation of the high-voltage switchgear is monitored in real time to cut off the power supply of the high-voltage switch group in time and reduce losses; The fire extinguishing assembly is arranged between the low-voltage control sub-cabinet and the high-voltage switch cabinet. The fire extinguishing assembly includes an inert gas tank, a fire extinguishing container tank, a gas spray head and a solvent spray head. When there is a fire tendency in the high-voltage switch group, the inert gas in the inert gas tank is immediately sprayed into the high-voltage switch cabinet by the gas spray head. At the same time, the fire extinguishing solvent in the fire extinguishing container tank is sprayed out by the solvent spray head to extinguish the fire point. The movable heat dissipation assembly is arranged on the top of the high-voltage switch cabinet. The movable heat dissipation assembly includes an installation frame, a plurality of movable plates and a heat dissipation fan. During normal use, the movable plates in the installation frame stand up, and the heat dissipation fan can be used to dissipate heat from the high-voltage switch group. When a fire occurs in the high-voltage switch group, the movable plates flip to be horizontal, so that the installation frame is closed, closing the high-voltage switch cabinet to reduce the contact between the flame and the air and reduce the fire combustion efficiency.

[0005] Optionally, the electronic control assembly further includes a connection wire harness, an array indicator light, an alarm, a wireless transmission module and a relay. The connection wire harness is arranged at one end of the fixed module. The array indicator light is fixedly installed on one side of the low-voltage control sub-cabinet. The alarm is fixedly installed on the top of the low-voltage control sub-cabinet. The wireless transmission module and the relay are fixedly installed inside the low-voltage control sub-cabinet.

[0006] Optionally, one end of the connection wire harness is electrically connected to the temperature and humidity sensor, the smoke sensor and the flame sensor respectively. The other end of the connection wire harness is electrically connected to the central controller. The wireless transmission module, the alarm and the array indicator light are all electrically connected to the central controller by wires. The central controller is electrically connected to the control coil of the relay by wires.

[0007] Optionally, the central controller is fixedly installed inside the low-voltage control sub-cabinet. The temperature and humidity sensor, the smoke sensor and the flame sensor are all arranged on one side of the high-voltage switch group.

[0008] Optionally, the fixed module includes a guiding frame, an adjusting screw, a slider, an installation pipe, a wire harness pipe, a fixing sleeve and an adjusting handle. The guiding frame is fixedly connected to one side of the joint between the low-voltage control sub-cabinet and the high-voltage switch cabinet. The adjusting screw is rotatably connected to the top bone of the guiding frame. The slider is slidably connected to the inside of the guiding frame. The installation pipe is arranged on one side of the slider. The wire harness pipe is fixedly connected to the middle of the slider. The fixing sleeve is sleeved on one end of the installation pipe. The adjusting handle is fixedly installed on one end of the adjusting screw. The adjusting screw is in threaded engagement with the slider. The fixing sleeve is in threaded connection with one end of the wire harness pipe. The installation pipe is fixedly installed at one end of the wire harness pipe through the setting of the fixing sleeve.

[0009] Optionally, the fire extinguishing assembly further includes a fixing plate, a first solenoid valve, a second solenoid valve, a first connecting pipe, and a second connecting pipe. The fixing plate is fixedly installed inside the low-voltage control sub-cabinet. The first solenoid valve and the second solenoid valve are fixedly installed in the middle of the fixing plate. The first connecting pipe is fixedly installed between the output end of the second solenoid valve and the input end of the gas nozzle. The second connecting pipe is fixedly installed between the first solenoid valve and the input end of the solvent nozzle. Both the first solenoid valve and the second solenoid valve are electrically connected to the central controller by wires.

[0010] Optionally, the output ends of the inert gas tank and the fire extinguishing container tank are respectively fixedly installed at the input ends of the second solenoid valve and the first solenoid valve. The output ends of the gas nozzle and the solvent nozzle are located on one side of the high-voltage switch group.

[0011] Optionally, the movable heat dissipation assembly further includes a dust-proof cover, a plurality of first connecting rods, a second connecting rod, and a driving motor. The dust-proof cover is fixedly installed on the top of the high-voltage switch cabinet. One end of each of the plurality of first connecting rods is fixedly connected to one end of the rotating shafts of the movable plates. The second connecting rod is movably connected between one ends of the plurality of movable plates. The driving motor is fixedly installed inside the low-voltage control sub-cabinet. One end of the output shaft of the driving motor is fixedly installed at one end of the rotating shaft of one of the movable plates. The heat dissipation fan is fixedly installed inside the top of the installation frame. The plurality of movable plates are rotatably connected inside the installation frame. The installation frame is fixedly installed inside the top of the high-voltage switch cabinet.

[0012] Optionally, the temperature and humidity sensor, the smoke sensor, the flame sensor, the gas nozzle, and the solvent nozzle are all fixedly installed in the middle of the installation pipe.

[0013] A method for a high-voltage switch cabinet intelligent electrical safety detection and alarm device specifically includes the following steps: Step 1: First, the central controller is powered on, causing the relay to be powered on, and then causing the high-voltage switch group to be powered on for use. During the use process, the temperature and humidity sensor, the smoke sensor, and the flame sensor are used to detect the usage situation of the high-voltage switch group. During the use process, the central controller controls the driving motor to drive one of the movable plates to stand up, and under the linkage action of the first connecting rod and the second connecting rod, drives the remaining movable plates to stand up simultaneously. At this time, the heat dissipation fan can dissipate heat from the high-voltage switch group in the high-voltage switch cabinet. Step 2: Then, when the high-voltage switch group is working, if the high-voltage switch group generates abnormal high temperature during operation, first, the temperature and humidity sensor will detect that the temperature of the high-voltage switch group has increased. At this time, it will transmit a signal to the central controller. The central controller gives an electrical signal to the array indicator light and the alarm to make them work for low-frequency warning. At the same time, the received signal will be transmitted to the mobile device terminal through the wireless transmission module. Step 3: When the temperature of the high-voltage switch group continues to rise and causes a fire, the smoke sensor and the flame sensor will detect the smoke and the generated flame. At this time, the central controller gives an electrical signal to the array indicator light and the alarm to make them work and emit a high-frequency alarm. At the same time, the relay is powered off, and then the high-voltage switch group is powered off. The central controller controls the driving motor to drive one of the movable plates to rotate to the horizontal, and under the linkage of the first connecting rod and the second connecting rod, drives the remaining movable plates to rotate to the horizontal at the same time, so that the ventilation efficiency inside the high-voltage switch cabinet becomes low, reducing the combination efficiency of the flame and oxygen. At the same time, the central controller controls the corresponding output ends of the second solenoid valve and the first solenoid valve to open, and the inert gas in the compressed inert gas tank and the fire extinguishing solvent in the fire extinguishing container tank are respectively ejected through the gas nozzle and the solvent nozzle, and the inert gas extinguishes the fire at the combustion point.

[0014] The present invention has at least the following beneficial effects: (1) In this solution, by setting up an electric control component, specifically, when the central controller is powered on, the relay is powered on, and then the high-voltage switch group is powered on for use. During the use process, the temperature and humidity sensor, the smoke sensor and the flame sensor are used to detect the use situation of the high-voltage switch group. If the high-voltage switch group generates abnormal high temperature during operation, first, the temperature and humidity sensor will detect the temperature rise of the high-voltage switch group, and at this time, a signal will be transmitted to the central controller. The central controller gives an electrical signal to the array indicator light and the alarm to make them work for low-frequency warning. At the same time, the received signal will be transmitted to the mobile device terminal through the wireless transmission module. At the same time, the relay is powered off, and then the high-voltage switch group is powered off, which can timely understand the situation inside the high-voltage switch cabinet and avoid continuous power-on causing short circuit and expanding losses; (2) In this solution, by setting up a fire extinguishing component, specifically, when the temperature of the high-voltage switch group continues to rise and causes a fire, the smoke sensor and the flame sensor will detect the smoke and the generated flame. At this time, the central controller controls the corresponding output ends of the second solenoid valve and the first solenoid valve to open, and the inert gas in the compressed inert gas tank and the fire extinguishing solvent in the fire extinguishing container tank are respectively ejected through the gas nozzle and the solvent nozzle, and the inert gas extinguishes the fire at the combustion point, timely extinguishing the fire at the ignition point and avoiding the spread of the fire; (3) In this solution, by setting up a heat dissipation component, specifically, during use, the central controller controls the driving motor to drive one of the movable plates to stand up, and under the linkage of the first connecting rod and the second connecting rod, drives the remaining movable plates to stand up at the same time. At this time, the heat dissipation fan can dissipate heat from the high-voltage switch group in the high-voltage switch cabinet. When there is an abnormal fire in the high-voltage switch cabinet, the central controller controls the driving motor to drive one of the movable plates to rotate to the horizontal, and under the linkage of the first connecting rod and the second connecting rod, drives the remaining movable plates to rotate to the horizontal at the same time, so that the ventilation efficiency inside the high-voltage switch cabinet becomes low, reducing the combination efficiency of the flame and oxygen, avoiding the fire from getting bigger and prolonging the rescue time; (4) In this solution, by setting a fixed module and using the adjusting handle to rotate the adjusting screw to engage with the slider, the front - rear distance of the mounting pipe can be adjusted. And by loosening the fixed sleeve and the wire harness pipe, the angle of the mounting pipe can be rotated, so that the angles and distances of each sensor can be adjusted, which is convenient to adjust the position according to different high - voltage switch groups, making the sensors able to detect accurately and be convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following will briefly introduce the drawings required for describing the embodiments. Obviously, the drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings. Figure 1 is a schematic structural diagram of the present invention; Figure 2 is a schematic structural diagram of one side of the present invention; Figure 3 is a schematic structural diagram of the fixed module of the present invention; Figure 4 is an exploded view of the partial structure of the fixed module of the present invention; Figure 5 is the present invention Figure 4 is a partial enlarged view of part A in the present invention; Figure 6 is the present invention Figure 4 is a partial enlarged view of part B in the present invention; Figure 7 is a schematic structural diagram of the partial structure of the fire - extinguishing component of the present invention; Figure 8 is a schematic structural diagram of the movable heat - dissipation component of the present invention.

[0016] In the drawings, the list of components represented by each reference numeral is as follows: 1. High-voltage switchgear; 2. Low-voltage control sub-cabinet; 3. High-voltage switch group; 401. Central controller; 402. Fixed module; 4021. Guide frame; 4022. Adjusting screw; 4023. Slide block; 4024. Installation pipe; 4025. Wiring harness pipe; 4026. Fixed sleeve; 4027. Adjusting handle; 403. Temperature and humidity sensor; 404. Smoke sensor; 405. Flame sensor; 406. Connection wiring harness; 407. Array indicator light; 408. Alarm; 409. Wireless transmission module; 410. Relay; 501. Fixed plate; 502. First solenoid valve; 503. Second solenoid valve; 504. Inert gas tank; 505. Fire extinguishing container tank; 506. Gas nozzle; 507. Solvent nozzle; 508. First connecting pipe; 509. Second connecting pipe; 601. Installation frame; 602. Dust cover; 603. Movable plate; 604. First connecting rod; 605. Second connecting rod; 606. Driving motor; 607. Cooling fan. Specific embodiments

[0017] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0018] Please refer to Figures 1 - 8 , the present invention provides a high-voltage switchgear intelligent electrical safety detection and alarm device and method, including a high-voltage switchgear 1, a low-voltage control sub-cabinet 2 is fixedly installed on one side of the high-voltage switchgear 1, a high-voltage switch group 3 is arranged inside the high-voltage switchgear 1, and an electric control component, a fire extinguishing component and a movable heat dissipation component are arranged between the high-voltage switchgear 1 and the low-voltage control sub-cabinet 2; The electric control component is arranged between the low-voltage control sub-cabinet 2 and the high-voltage switchgear 1. The electric control component includes a central controller 401, a fixed module 402, a temperature and humidity sensor 403, a smoke sensor 404 and a flame sensor 405. By arranging the temperature and humidity sensor 403, the smoke sensor 404 and the flame sensor 405, the situation inside the high-voltage switchgear 1 is monitored in real time, so as to cut off the power supply of the high-voltage switch group 3 in time and reduce losses; In some embodiments, refer to Figure 2 , Figure 3 , Figure 4 , Figure 5 , Figure 6, the electric control component further includes a connection wire harness 406, an array indicator light 407, an alarm 408, a wireless transmission module 409, and a relay 410. The connection wire harness 406 is disposed at one end of the fixed module 402. The array indicator light 407 is fixedly installed on one side of the low-voltage control sub-cabinet 2. The alarm 408 is fixedly installed on the top of the low-voltage control sub-cabinet 2. The wireless transmission module 409 and the relay 410 are fixedly installed inside the low-voltage control sub-cabinet 2. One end of the connection wire harness 406 is electrically connected to the temperature and humidity sensor 403, the smoke sensor 404, and the flame sensor 405 respectively. The other end of the connection wire harness 406 is electrically connected to the central controller 401. The wireless transmission module 409, the alarm 408, and the array indicator light 407 are all electrically connected to the central controller 401 by wires. The central controller 401 is electrically connected to the control coil of the relay 410 by wires. The central controller 401 is fixedly installed inside the low-voltage control sub-cabinet 2. The temperature and humidity sensor 403, the smoke sensor 404, and the flame sensor 405 are all disposed on one side of the high-voltage switch group 3; It should be noted that the temperature and humidity sensor 403, the smoke sensor 404, and the flame sensor 405 are provided to detect the temperature and humidity conditions inside the high-voltage switch cabinet 1. When a fire occurs, it can timely detect whether there is smoke and flame generated, so as to timely discover the abnormality of the high-voltage switch group 3. During use, the central controller 401 is powered on, which makes the relay 410 powered on, and then makes the high-voltage switch group 3 powered on for use. During the use process, the temperature and humidity sensor 403, the smoke sensor 404, and the flame sensor 405 are used to detect the usage situation of the high-voltage switch group 3. If the high-voltage switch group 3 works with abnormal high temperature, first, the temperature and humidity sensor 403 will detect that the temperature of the high-voltage switch group 3 rises. At this time, it will transmit a signal to the central controller 401. The central controller 401 gives an electrical signal to the array indicator light 407 and the alarm 408 to make them work for low-frequency warning. At the same time, the received signal will be transmitted to the mobile device terminal through the wireless transmission module 409. If a short-circuit fire occurs, the central controller 401 will cut off the power supply of the relay 410, and at the same time, the alarm 408 will make it work for high-frequency alarm, and then cut off the power supply of the high-voltage switch group 3, so as to timely understand the situation inside the high-voltage switch cabinet 1 and avoid continuous power supply causing short-circuit and expanding losses.

[0019] In some embodiments, refer to Figure 3 , Figure 4 , Figure 6, the fixing module 402 includes a guiding frame 4021, an adjusting screw 4022, a slider 4023, a mounting pipe 4024, a wiring harness pipe 4025, a fixing sleeve 4026 and an adjusting handle 4027. The guiding frame 4021 is fixedly connected to one side of the connection between the low-voltage control sub-cabinet 2 and the high-voltage switch cabinet 1. The adjusting screw 4022 is rotatably connected to the top of the guiding frame 4021. The slider 4023 is slidably connected to the inside of the guiding frame 4021. The mounting pipe 4024 is arranged on one side of the slider 4023. The wiring harness pipe 4025 is fixedly connected to the middle of the slider 4023. The fixing sleeve 4026 is sleeved on one end of the mounting pipe 4024. The adjusting handle 4027 is fixedly installed at one end of the adjusting screw 4022. The adjusting screw 4022 is in threaded engagement with the slider 4023. The fixing sleeve 4026 is threadedly connected to one end of the wiring harness pipe 4025. The mounting pipe 4024 is fixedly installed at one end of the wiring harness pipe 4025 through the setting of the fixing sleeve 4026. The temperature and humidity sensor 403, the smoke sensor 404, the flame sensor 405, the gas nozzle 506 and the solvent nozzle 507 are all fixedly installed in the middle of the mounting pipe 4024; It should be noted that by providing the mounting pipe 4024 that can adjust the front-back distance and angle, turning the adjusting screw 4022 with the adjusting handle 4027 to engage it with the slider 4023 can adjust the front-back distance of the mounting pipe 4024. And by loosening the fixing sleeve 4026 and the wiring harness pipe 4025, the angle of the mounting pipe 4024 can be rotated, so as to adjust the angles and distances of the various sensors, facilitating the adjustment of the position according to different high-voltage switch groups 3, making the sensors accurately detect and convenient to use. The fire extinguishing assembly is arranged between the low-voltage control sub-cabinet 2 and the high-voltage switch cabinet 1. The fire extinguishing assembly includes an inert gas tank 504, a fire extinguishing container tank 505, a gas nozzle 506 and a solvent nozzle 507. When there is a fire tendency in the high-voltage switch group 3, the inert gas in the inert gas tank 504 is immediately sprayed into the high-voltage switch cabinet 1 by the gas nozzle 506, and at the same time, the fire extinguishing solvent in the fire extinguishing container tank 505 is sprayed by the solvent nozzle 507 to extinguish the fire point; In some embodiments, refer to Figure 2 , Figure 4 , Figure 6 , Figure 7, the fire extinguishing assembly further includes a fixing plate 501, a first solenoid valve 502, a second solenoid valve 503, a first connecting pipe 508, and a second connecting pipe 509. The fixing plate 501 is fixedly installed inside the low-voltage control sub-cabinet 2. The first solenoid valve 502 and the second solenoid valve 503 are fixedly installed in the middle of the fixing plate 501. The first connecting pipe 508 is fixedly installed between the output end of the second solenoid valve 503 and the input end of the gas spray head 506. The second connecting pipe 509 is fixedly installed between the first solenoid valve 502 and the input end of the solvent spray head 507. Both the first solenoid valve 502 and the second solenoid valve 503 are electrically connected to the central controller 401 by wires. The output ends of the inert gas tank 504 and the fire extinguishing container tank 505 are respectively fixedly installed at the input ends of the second solenoid valve 503 and the first solenoid valve 502. The output ends of the gas spray head 506 and the solvent spray head 507 are located on one side of the high-voltage switch group 3; It should be noted that by providing the inert gas tank 504 and the fire extinguishing container tank 505, compressed inert gas and fire extinguishing solvent are filled in the inert gas tank 504 and the fire extinguishing container tank 505. When the temperature of the high-voltage switch group 3 continues to rise and catches fire, the smoke sensor 404 and the flame sensor 405 will detect smoke and generate flames. At this time, the central controller 401 controls the corresponding output ends of the second solenoid valve 503 and the first solenoid valve 502 to open. The inert gas in the compressed inert gas tank 504 and the fire extinguishing solvent in the fire extinguishing container tank 505 are respectively sprayed out through the gas spray head 506 and the solvent spray head 507. The inert gas extinguishes the fire at the combustion point, timely extinguishes the fire at the ignition point, and avoids the spread of the fire.

[0020] The movable heat dissipation assembly is arranged on the top of the high-voltage switch cabinet 1. The movable heat dissipation assembly includes an installation frame 601, a plurality of movable plates 603, and a heat dissipation fan 607. During normal use, the movable plates 603 in the installation frame 601 stand up, and the heat dissipation fan 607 can be used to dissipate heat from the high-voltage switch group 3. When a fire occurs in the high-voltage switch group 3, the movable plates 603 flip to be horizontal, so that the installation frame 601 closes, closing the high-voltage switch cabinet 1 to reduce the contact between the flame and the air and reduce the fire combustion efficiency; The movable heat dissipation assembly further includes a dust cover 602, a plurality of first connecting rods 604, a second connecting rod 605, and a driving motor 606. The dust cover 602 is fixedly installed on the top of the high-voltage switch cabinet 1. One end of a plurality of first connecting rods 604 is fixedly connected to one end of the rotating shafts of a plurality of movable plates 603. The second connecting rod 605 is movably connected between one ends of a plurality of movable plates 603. The driving motor 606 is fixedly installed inside the low-voltage control sub-cabinet 2. One end of the output shaft of the driving motor 606 is fixedly installed at one end of the rotating shaft of one of the movable plates 603. The heat dissipation fan 607 is fixedly installed inside the top of the installation frame 601. A plurality of movable plates 603 are rotatably connected to the inside of the installation frame 601. The installation frame 601 is fixedly installed inside the top of the high-voltage switch cabinet 1; It should be noted that a rotatable movable plate 603 is installed inside the installation frame 601. During normal use, the central controller 401 controls the driving motor 606 to drive one of the movable plates 603 to stand up. Under the linkage action of the first connecting rod 604 and the second connecting rod 605, the remaining movable plates 603 are driven to stand up simultaneously. At this time, the heat dissipation fan 607 can dissipate heat from the high-voltage switch group 3 in the high-voltage switch cabinet 1. When a fire breaks out abnormally in the high-voltage switch cabinet 1, the central controller 401 controls the driving motor 606 to drive one of the movable plates 603 to rotate to the horizontal position. Under the linkage action of the first connecting rod 604 and the second connecting rod 605, the remaining movable plates 603 are driven to rotate to the horizontal position simultaneously, reducing the ventilation efficiency inside the high-voltage switch cabinet 1, decreasing the combination efficiency of the flame and oxygen, preventing the fire from spreading, and prolonging the rescue time.

[0021] Workflow and principle of the present invention: First, the central controller 401 is powered on, causing the relay 410 to be powered on, and then the high-voltage switch group 3 is powered on for use. During use, the temperature and humidity sensor 403, smoke sensor 404, and flame sensor 405 are used to detect the usage situation of the high-voltage switch group 3. During use, the central controller 401 controls the driving motor 606 to drive one of the movable plates 603 to stand up. Under the linkage action of the first connecting rod 604 and the second connecting rod 605, the remaining movable plates 603 are driven to stand up simultaneously. At this time, the heat dissipation fan 607 can dissipate heat from the high-voltage switch group 3 in the high-voltage switch cabinet 1. Then, when the high-voltage switch group 3 is working, if the high-voltage switch group 3 generates abnormal high temperature during operation, first, the temperature and humidity sensor 403 will detect the temperature increase of the high-voltage switch group 3 and transmit a signal to the central controller 401 at this time. The central controller 401 gives an electrical signal to the array indicator light 407 and the alarm 408 to make them work for low-frequency warning. At the same time, the received signal will be transmitted to the mobile device terminal through the wireless transmission module 409. When the temperature of the high-voltage switch group 3 continues to rise and catches fire, the smoke sensor 404 and the flame sensor 405 will detect smoke and flames. At this time, the central controller 401 gives an electrical signal to the array indicator light 407 and the alarm 408 to make them work to issue a high-frequency alarm. At the same time, the relay 410 is powered off, and then the high-voltage switch group 3 is powered off. The central controller 401 controls the driving motor 606 to drive one of the movable plates 603 to rotate to the horizontal position. Under the linkage action of the first connecting rod 604 and the second connecting rod 605, the remaining movable plates 603 are driven to rotate to the horizontal position simultaneously, reducing the ventilation efficiency inside the high-voltage switch cabinet 1 and decreasing the combination efficiency of the flame and oxygen. At the same time, the central controller 401 controls the corresponding output ends of the second solenoid valve 503 and the first solenoid valve 502 to open. The inert gas in the compressed inert gas tank 504 and the fire extinguishing solvent in the fire extinguishing container tank 505 are respectively ejected through the gas nozzle 506 and the solvent nozzle 507, and the inert gas extinguishes the fire at the combustion point.

[0022] It should be noted that in this document, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprising", "including" or any other variation thereof are intended to cover non-exclusive inclusion, such that a process, method, article or device comprising a series of elements not only includes those elements but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0023] Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A smart electrical safety detection and alarm device for high-voltage switchgear, characterized in that, It includes a high-voltage switch cabinet (1), on one side of which a low-voltage control sub-cabinet (2) is fixedly installed. Inside the high-voltage switch cabinet (1), a high-voltage switch group (3) is arranged. Between the high-voltage switch cabinet (1) and the low-voltage control sub-cabinet (2), there are an electric control component, a fire extinguishing component, and a movable heat dissipation component: The electric control component is arranged between the low-voltage control sub-cabinet (2) and the high-voltage switch cabinet (1). The electric control component includes a central controller (401), a fixed module (402), a temperature and humidity sensor (403), a smoke sensor (404), and a flame sensor (405). By means of the arranged temperature and humidity sensor (403), smoke sensor (404), and flame sensor (405), the situation inside the high-voltage switch cabinet (1) is monitored in real time, so as to cut off the power supply of the high-voltage switch group (3) in time and reduce losses; The fire extinguishing component is arranged between the low-voltage control sub-cabinet (2) and the high-voltage switch cabinet (1). The fire extinguishing component includes an inert gas tank (504), a fire extinguishing container tank (505), a gas spray head (506), and a solvent spray head (507). When there is a fire trend in the high-voltage switch group (3), the inert gas in the inert gas tank (504) is immediately sprayed into the high-voltage switch cabinet (1) by the gas spray head (506), and at the same time, the fire extinguishing solvent in the fire extinguishing container tank (505) is sprayed out by the solvent spray head (507) to extinguish the fire point; The movable heat dissipation component is arranged on the top of the high-voltage switch cabinet (1). The movable heat dissipation component includes a mounting frame (601), a number of movable plates (603), and a heat dissipation fan (607). During normal use, the movable plates (603) in the mounting frame (601) stand up, and the heat dissipation fan (607) can be used to dissipate heat from the high-voltage switch group (3). When a fire occurs in the high-voltage switch group (3), the movable plates (603) turn horizontally, so that the mounting frame (601) closes, closing the high-voltage switch cabinet (1) to reduce the contact between the flame and the air and lower the fire combustion efficiency.

2. The intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 1, characterized in that: The electric control component further includes a connection wire harness (406), an array indicator light (407), an alarm (408), a wireless transmission module (409), and a relay (410). The connection wire harness (406) is arranged at one end of the fixed module (402). The array indicator light (407) is fixedly installed on one side of the low-voltage control sub-cabinet (2). The alarm (408) is fixedly installed on the top of the low-voltage control sub-cabinet (2). The wireless transmission module (409) and the relay (410) are fixedly installed inside the low-voltage control sub-cabinet (2).

3. The intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 2, characterized in that: One end of the connection wire harness (406) is electrically connected to the temperature and humidity sensor (403), the smoke sensor (404), and the flame sensor (405) respectively. The other end of the connection wire harness (406) is electrically connected to the central controller (401). The wireless transmission module (409), the alarm (408), and the array indicator light (407) are all electrically connected to the central controller (401) by wires. The central controller (401) is electrically connected to the control coil of the relay (410) by wires.

4. The intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 1, characterized in that: The central controller (401) is fixedly installed inside the low-voltage control sub-cabinet (2), and the temperature and humidity sensor (403), the smoke sensor (404), and the flame sensor (405) are all arranged on one side of the high-voltage switch group (3).

5. The intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 1, characterized in that: The fixing module (402) includes a guiding frame (4021), an adjusting screw (4022), a slider (4023), an installation pipe (4024), a wire harness pipe (4025), a fixing sleeve (4026), and an adjusting handle (4027). The guiding frame (4021) is fixedly connected to one side of the joint between the low-voltage control sub-cabinet (2) and the high-voltage switch cabinet (1). The adjusting screw (4022) is rotatably connected to the top of the guiding frame (4021). The slider (4023) is slidably connected to the inside of the guiding frame (4021). The installation pipe (4024) is arranged on one side of the slider (4023). The wire harness pipe (4025) is fixedly connected to the middle of the slider (4023). The fixing sleeve (4026) is sleeved on one end of the installation pipe (4024). The adjusting handle (4027) is fixedly installed at one end of the adjusting screw (4022). The adjusting screw (4022) is in threaded engagement with the slider (4023). The fixing sleeve (4026) is threadedly connected to one end of the wire harness pipe (4025). The installation pipe (4024) is fixedly installed at one end of the wire harness pipe (4025) through the setting of the fixing sleeve (4026).

6. The intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 1, characterized in that: The fire extinguishing assembly further includes a fixing plate (501), a first solenoid valve (502), a second solenoid valve (503), a first connecting pipe (508), and a second connecting pipe (509). The fixing plate (501) is fixedly installed inside the low-voltage control sub-cabinet (2). The first solenoid valve (502) and the second solenoid valve (503) are fixedly installed in the middle of the fixing plate (501). The first connecting pipe (508) is fixedly installed between the output end of the second solenoid valve (503) and the input end of the gas nozzle (506). The second connecting pipe (509) is fixedly installed between the first solenoid valve (502) and the input end of the solvent nozzle (507). Both the first solenoid valve (502) and the second solenoid valve (503) are electrically connected to the central controller (401) by wires.

7. An intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 1, characterized in that: The output ends of the inert gas tank (504) and the fire extinguishing container tank (505) are respectively fixedly installed at the input ends of the second solenoid valve (503) and the first solenoid valve (502). The output ends of the gas nozzle (506) and the solvent nozzle (507) are located on one side of the high-voltage switch group (3).

8. The intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 1, characterized in that: The active heat dissipation component further includes a dust-proof cover (602), a plurality of first connecting rods (604), a second connecting rod (605), and a driving motor (606). The dust-proof cover (602) is fixedly installed on the top of the high-voltage switch cabinet (1). One end of each of the plurality of first connecting rods (604) is fixedly connected to one end of the rotating shafts of the plurality of movable plates (603). The second connecting rod (605) is movably connected between one ends of the plurality of movable plates (603). The driving motor (606) is fixedly installed inside the low-voltage control sub-cabinet (2). One end of the output shaft of the driving motor (606) is fixedly installed on one end of the rotating shaft of one of the movable plates (603). The heat dissipation fan (607) is fixedly installed inside the top of the installation frame (601). The plurality of movable plates (603) are rotatably connected inside the installation frame (601). The installation frame (601) is fixedly installed inside the top of the high-voltage switch cabinet (1).

9. The intelligent electrical safety detection and alarm device for high-voltage switchgear according to claim 1, characterized in that: The temperature and humidity sensor (403), smoke sensor (404), flame sensor (405), gas spray head (506), and solvent spray head (507) are all fixedly installed in the middle of the installation pipe (4024).

10. A method for a smart electrical safety detection and alarm device of a high-voltage switchgear according to any one of claims 1-9, characterized in that, Specifically, it includes the following steps: Step 1: First, the central controller (401) is powered on, so that the relay (410) is powered on, and then the high-voltage switch group (3) is powered on for use. During the use process, the temperature and humidity sensor (403), smoke sensor (404), and flame sensor (405) are used to detect the use situation of the high-voltage switch group (3). During the use process, the central controller (401) controls the driving motor (606) to drive one of the movable plates (603) to stand up. And under the linkage action of the first connecting rod (604) and the second connecting rod (605), the remaining movable plates (603) are driven to stand up simultaneously. At this time, the heat dissipation fan (607) can dissipate heat from the high-voltage switch group (3) in the high-voltage switch cabinet (1). Step 2: Then, when the high-voltage switch group (3) is working, if the high-voltage switch group (3) generates abnormal high temperature during operation, first, the temperature and humidity sensor (403) will detect that the temperature of the high-voltage switch group (3) rises. At this time, a signal will be transmitted to the central controller (401). The central controller (401) gives an electrical signal to the array indicator light (407) and the alarm (408) to make them work for low-frequency warning. At the same time, the received signal will be transmitted to the mobile device terminal through the wireless transmission module (409). Step 3: When the temperature of the high-voltage switch group (3) continues to rise and catches fire, the smoke sensor (404) and the flame sensor (405) will detect smoke and generate flames. At this time, the central controller (401) gives an electrical signal to the array indicator light (407) and the alarm (408) to make them work and emit a high-frequency alarm. At the same time, the relay (410) is powered off, and then the high-voltage switch group (3) is powered off. The central controller (401) controls the drive motor (606) to drive one of the movable plates (603) to rotate to the horizontal. And under the linkage action of the first connecting rod (604) and the second connecting rod (605), the remaining movable plates (603) are driven to rotate to the horizontal at the same time, so that the ventilation efficiency inside the high-voltage switch cabinet (1) becomes low, reducing the combination efficiency of the flame and oxygen. At the same time, the central controller (401) controls the corresponding output ends of the second solenoid valve (503) and the first solenoid valve (502) to open. The inert gas in the compressed inert gas tank (504) and the fire extinguishing solvent in the fire extinguishing container tank (505) are respectively sprayed out through the gas nozzle (506) and the solvent nozzle (507), and the inert gas extinguishes the fire at the combustion point.

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