An active electrical protection device

Abstract

The present invention relates to the field of electrical safety protection technology, and in particular to an active electrical protection device, comprising: a temperature sensor, wherein a temperature sensing medium is provided in the temperature sensor; a passive starter, connected to the temperature sensor, and the passive starter is triggered to operate by the gas pressure transported to the passive starter through the temperature sensor; a protective agent storage tank, used for storing the protective medium; a nozzle, used for spraying out the protective medium, and arranged at the bottom of the temperature sensor; a gas generator, which ignites the gas generator when the passive starter is operated, and is used for generating gas to drive the protective medium in the protective agent storage tank to be sprayed out through the nozzle; and a spray pipeline, wherein the temperature sensor, the passive starter, the gas generator and the protective agent storage tank are sequentially arranged on the spray pipeline, and the nozzle is connected to the spray pipeline, so as to solve the problem that when a fire occurs in the electrical device, the electrical feedback system of the electrical protection device fails when the fire burns out first, resulting in a power outage of the power supply facilities.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical safety protection, and in particular to an active electrical protection device. Background Art

[0002] Temperature is the most important and fundamental physical quantity for determining the proper operation of electrical equipment. By monitoring the temperature of cables, cable connectors, and electrical terminals, we can predict or promptly detect potential or ongoing electrical equipment failures, effectively preventing accidents.

[0003] There are generally two types of faults in electrical equipment, namely internal faults and external faults.

[0004] Internal faults primarily arise from electrical equipment overloads, high impedance at electrical terminal joints, aging insulation, or partial discharge within the equipment itself. These can cause a temperature rise on the surface of the electrical terminals, leading to smoldering of the insulation and protective layers of the equipment. This is accompanied by the generation of high heat and flammable gases. As the temperature rises further, smoke is produced, ultimately leading to fires. Electrical fires account for approximately 30% of fires annually. Common issues with traditional electrical fire prevention include equipment corrosion, electrical short circuits, insulation failures, malfunctions, electrical breakdowns, burnouts, and performance degradation. Overheating can trigger fires in the middle and late stages of a fire, making firefighting difficult and increasing losses. Active protection systems can proactively address safety incidents, providing rapid response, prompt resolution, early warning feedback, and early prevention.

[0005] The feedback links of existing protection systems in the electrical field often require power supply support, such as ultraviolet, infrared, smoke, and temperature sensors. However, a large number of application cases have exposed some problems with existing fault protection systems, such as:

[0006] (1) The electric feedback system fails when the power supply facilities are destroyed by fire and the power is cut off.

[0007] (2) The electric feedback system needs to be inspected and maintained every year due to long-term storage. The high-pressure gas cylinder of the protective agent storage tank itself is a source of danger.

[0008] (3) The spray pipe network system started by the temperature-sensitive glass bulb has problems such as insufficient pressure or water leakage in the pipe.

[0009] (4) The temperature-sensitive non-metallic materials used, such as fire detectors, have high starting temperatures or their own lifespan may be a problem.

[0010] (5) The use of fusible temperature-sensitive alloys as temperature-sensing elements and the use of spring-pull wire starting methods to start the protective system of the protector, such as the automatic fire extinguishing system of electrical equipment, has the problem of slow response to safety hazards. In addition, due to the limitation of spring elastic force and wire length, the temperature-sensing element and the protective agent storage tank cannot be too far apart, resulting in a very limited coverage of the protection system. Summary of the Invention

[0011] The purpose of the present invention is to provide an active electrical protection device to solve the problem that when a fire occurs in an electrical device, the electrical feedback system of the electrical protection device fails when the fire burns out first, causing power outages in the power supply facilities.

[0012] In order to solve the above technical problems, the present invention adopts the following technical solutions:

[0013] An active electrical protection device, comprising:

[0014] A temperature sensor, wherein a temperature-sensing medium is provided in the temperature sensor, and the temperature-sensing medium is used to sense the ambient temperature and generate gas as the temperature rises;

[0015] A passive starter is connected to the temperature sensor, and the gas delivered to the passive starter by the temperature sensor triggers the passive starter to operate;

[0016] Protective agent storage tank, used to store protective media;

[0017] A spray head is provided at the bottom of the temperature sensor and is used to spray out the protective medium;

[0018] A gas generator, wherein the passive starter ignites the gas generator when it is actuated, and the gas generator is used to generate gas to drive the protective medium in the protective agent storage tank to be sprayed out through the nozzle; and

[0019] The spray pipeline, the temperature sensor, the passive starter, the gas generator and the protective agent storage tank are sequentially arranged on the spray pipeline, and the spray head is connected to the spray pipeline.

[0020] A further technical solution is that a check valve is provided on the spray pipe between the temperature sensor and the passive starter, the check valve includes a valve body, a first channel is provided in the valve body, a check valve core is slidably provided in the first channel, the check valve core is connected to a spring, the spring is connected to the adjustment seat connected to the valve body, the spring contacts the check valve core, so that the check valve core blocks the first channel.

[0021] A further technical solution is that the passive starter includes a starter connector with a second channel, and the starter connector is provided with a first safety diaphragm, a first diaphragm striker, a first diaphragm pressure plate and a starter adjustment nut, one end of the first safety diaphragm is connected to the starter connector, and the other end is connected to the first diaphragm pressure plate, the first diaphragm striker is arranged on the first diaphragm pressure plate, the moving end surface of the first safety diaphragm is arranged toward the temperature sensor, one end of the starter adjustment nut is connected to the starter connector, and the other end is connected to the spray pipe.

[0022] A further technical solution is that the gas generator includes a bottle head valve, a first cavity is provided in the bottle head valve, an upper cover for closing the first cavity is provided on the top of the bottle head valve, a through hole is provided in the middle of the upper cover for the spray pipe to pass through, a pressure limiting membrane device is provided at the connection between the spray pipe and the upper cover, a first air flow channel is vertically provided on the upper cover, a second air flow channel is horizontally provided in the upper cover, the two ends of the second air flow channel are respectively connected to the first air flow channel and the spray pipe, and the second air flow channel is spaced above the pressure limiting membrane device, a safety striker is slidingly provided in the first air flow channel, a needle-piercing primer and a composite solid gas-generating agent are provided in the first cavity, and the safety striker drives the safety striker to hit the needle-piercing primer by the gas transported from the second air flow channel to the first air flow channel, so that the needle-piercing primer ignites the composite solid gas-generating agent to produce composite gas.

[0023] A further technical solution is that the bottle head valve is arranged at the top of the protective agent storage tank, and a chamber for storing the protective medium is provided in the protective agent storage tank. The bottom of the chamber is provided with a groove, and the air inlet end of the spray pipeline is provided in the groove. A piston is provided in the chamber, and the piston divides the chamber into a push chamber and an extrusion chamber arranged at intervals in the upper and lower parts. The push chamber is connected to the first cavity, and the piston is slidably sleeved on the spray pipeline.

[0024] A further technical solution is that an emergency start pull ring is provided on the outer side of the bottle head valve.

[0025] A further technical solution is that the pressure-limiting membrane device includes a clamping assembly arranged in the spray pipe, and the clamping assembly includes an upper clamp and a lower clamp connected in upper and lower directions. The upper clamp and the lower clamp are both hollow, and a pressure-limiting diaphragm is provided at the connection between the upper clamp and the lower clamp, and a blade is provided on the upper clamp.

[0026] A further technical solution is that the sprinkler includes a sprinkler joint body, a second cavity is provided in the sprinkler joint body, a second diaphragm pressure plate and a second safety diaphragm arranged on the second diaphragm pressure plate and blocking the second cavity are provided in the second diaphragm pressure plate, a second diaphragm striker is provided on the second diaphragm pressure plate, the second diaphragm striker faces the arc-shaped curved side of the second safety diaphragm so that the second safety diaphragm is subjected to force and punctured by the second diaphragm striker, a plurality of nozzles are provided on the sprinkler joint body, the sprinkler pipeline is provided with a branch pipe, one end of the branch pipe is connected to the temperature sensor, and the other end is connected to the sprinkler pipeline arranged between the check valve and the passive starter, and the sprinkler joint body is connected to the branch pipe.

[0027] Compared with the prior art, the present invention has at least one of the following beneficial effects:

[0028] 1. The entire system does not need to be powered, eliminating the potential threat of system paralysis caused by power supply lines due to safety accidents.

[0029] 2. The effective transmission distance of the spray pipeline is long and it can be bent conveniently as needed without affecting the transmission of power gas.

[0030] 3. Long maintenance-free period. The service life of the temperature-sensing medium and the composite solid gas-generating agent in the gas generator can reach over 10 years. The protective agent storage tank is a non-pressure storage type. Under normal circumstances, there is basically no possibility of protective agent leakage during long-term storage.

[0031] 4. Can be used in low-temperature environments. The use of specific low-temperature resistant composite temperature-sensing agents and low-temperature resistant protective agents allows the system to be used in -40°C field environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0032] Figure 1 The figure is a schematic structural diagram of an active electrical protection device of the present invention.

[0033] Figure 2 Schematic diagram of the structure of the pressure limiting membrane device in an embodiment of the present invention.

[0034] Figure 3 Schematic diagram of the structure of the check valve in an embodiment of the present invention.

[0035] Figure 4 Schematic diagram of the structure of the passive starter in an embodiment of the present invention.

[0036] Figure 5 Schematic diagram of the structure of the protective agent storage tank in an embodiment of the present invention.

[0037] Figure 6 yes Figure 5 A partial enlarged schematic diagram of point A in the middle.

[0038] Figure 7 Schematic diagram of the structure of the spray nozzle in the embodiment of the present invention.

[0039] Icons: 1-temperature sensor, 2-passive starter, 3-protective agent storage tank, 4-spray head, 5-gas generator, 6-spray pipe, 7-check valve, 8-valve body, 9-check valve core, 10-spring, 11-adjusting seat, 12-starter connector, 13-first safety diaphragm, 14-first diaphragm striker, 15-first diaphragm pressure plate, 16-starter adjusting nut, 17-bottle head valve, 18-upper cover, 19- Pressure limiting membrane device, 20-first air flow channel, 21-second air flow channel, 22-safety firing pin, 23-puncture primer, 24-groove, 25-piston, 26-emergency start pull ring, 27-upper clamp, 28-lower clamp, 29-pressure limiting diaphragm, 30-blade, 31-nozzle connector body, 32-second safety diaphragm, 33-second diaphragm pressure plate, 34-second diaphragm firing pin, 35-nozzle, 36-branch pipe. Implementation Method

[0040] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0041] Example:

[0042] Figure 1-Figure 7 A preferred embodiment of an active electrical protection device of the present invention is shown. In this embodiment, an active electrical protection device specifically includes a temperature sensor 1, wherein a temperature sensing medium is provided in the temperature sensor 1. The temperature sensing medium is used to sense the ambient temperature and generate gas as the temperature rises;

[0043] The passive starter 2 is connected to the temperature sensor 1, and the gas transported into the passive starter 2 by the temperature sensor 1 triggers the passive starter 2 to operate;

[0044] Protective agent storage tank 3, used for storing protective medium;

[0045] A nozzle 4, used for spraying the protective medium, is provided at the bottom of the temperature sensor 1;

[0046] A gas generator 5, which ignites the gas generator 5 when the passive starter 2 is actuated, and is used to generate gas to drive the protective medium in the protective agent storage tank 3 to be sprayed out through the nozzle 4; and

[0047] The spray pipeline 6, the temperature sensor 1, the passive starter 2, the gas generator 5 and the protective agent storage tank 3 are sequentially arranged on the spray pipeline 6, and the spray head 4 is connected to the spray pipeline 6.

[0048] The working principle of the present invention is that after the temperature sensor 1 is affected by the change of ambient temperature, it generates gas of a certain pressure, and the gas is transmitted to the passive starter 2 through the spray pipe 6. The gas breaks through the first safety diaphragm 13 in the passive starter 2, and pushes the needle-piercing primer 23 in the bottle head valve 17 through the spray pipe 6 to start the gas generator 5. After the composite solid gas generating agent in the gas generator 5 is ignited, the gas generated at a certain pressure pushes the protective agent in the protective agent storage tank, breaks through the second safety diaphragm 32 in the nozzle 4 through the spray pipe 6, and sprays the protective agent towards the potential risk point.

[0049] In the present invention, the gas generated by the temperature-sensitive medium is provided by the temperature sensor 1 through temperature changes to generate gas changes, and its main components are one kind of safety protection agent, water vapor, or a combination of the safety protection agent and water vapor; the thermal vaporization critical temperature of the safety protection agent is not lower than 50°C; the gas generated by the gas generator 5 is provided by a composite solid gasifying agent through a chemical reaction, and its main components are one or more kinds of nitrogen, carbon dioxide, and water vapor.

[0050] As another embodiment of the present invention, a check valve 7 is provided on the spray pipe 6 between the temperature sensor 1 and the passive starter 2. The check valve 7 includes a valve body 8. A first channel is provided in the valve body 8. A check valve core 9 is slidably provided in the first channel. The check valve core 9 is connected to a spring 10. The spring 10 is connected to an adjustment seat 11 connected to the valve body 8. The spring 10 contacts the check valve core 9 so that the check valve core 9 blocks the first channel. This is the state in which the temperature sensor 1 does not respond; when When the temperature sensor 1 detects that the external temperature rises and reaches the critical value for the temperature-sensitive medium in the temperature sensor 1 to generate gas, the temperature-sensitive medium is affected by the temperature to generate gas, and the gas is transported to the first channel in the valve body 8 through the spray pipe 6, and the check valve core 9 is pushed by the gas to move toward one side of the spring 10. The first channel is divided into a small-diameter end and a large-diameter end set on the left and right. When the gas pushes the check valve core 9 to separate from the small-diameter end, the first channel is in an unobstructed state. When the check valve core 9 is set at the small-diameter end, it is in a blocked state.

[0051] The adjustment seat 11 can be connected to the valve body 8 through a thread, so that the spring 10 can be adjusted by adjusting the connection position of the adjustment seat 11 and the valve body 8, so that the thrust of the gas generated by the temperature sensor 1 to push the check valve core 9 to make the first channel unobstructed can be set according to the temperature, and the entire device can be installed in different temperature environments.

[0052] The passive starter 2 includes a starter connector 12 with a second channel therein, and a first safety diaphragm 13, a first diaphragm striker 14, a first diaphragm pressure plate 15 and a starter adjusting nut 16 are provided in the starter connector 12. One end of the first safety diaphragm 13 is connected to the starter connector 12, and the other end is connected to the first diaphragm pressure plate 15. The first diaphragm striker 14 is arranged on the first diaphragm pressure plate 15. The moving end surface of the first safety diaphragm 13 is arranged toward the temperature sensor 1. One end of the starter adjusting nut 16 is connected to the starter connector 12, and the other end is connected to the spray pipe 6. After the gas reaches the second channel through the check valve 7, it first contacts the first safety diaphragm 13, and pushes the first safety diaphragm 13 toward the first diaphragm striker 14 through the gas, and causes the first diaphragm striker 14 to separate the first safety diaphragm 13, so that the second channel is in an unobstructed state.

[0053] The gas generator 5 includes a bottle head valve 17, which has a first cavity therein. The top of the bottle head valve 17 is provided with an upper cover 18 for closing the first cavity. The middle of the upper cover 18 is provided with a through hole for the spray pipe 6 to pass through. A pressure limiting membrane device 19 is provided at the connection between the spray pipe 6 and the upper cover 18. The upper cover 18 is vertically provided with a first air flow channel 20, and a second air flow channel 21 is horizontally provided in the upper cover 18. The two ends of the second air flow channel 21 are respectively connected to the first air flow channel 20 and the spray pipe 6, and the second air flow channel 21 is spaced above the pressure limiting membrane device 19. A safety striker 22 is slidingly provided in the first air flow channel 20, and a needle-piercing primer 23 and a composite solid gas-generating agent are provided in the first cavity. The safety striker 22 drives the safety striker 22 to hit the needle-piercing primer 23 through the gas transported from the second air flow channel 21 to the first air flow channel 20, so that the needle-piercing primer 23 ignites the composite solid gas-generating agent to produce composite gas.

[0054] After the gas passes through the passive starter 2, it is transported to the pressure-limiting membrane device 19 through the spray pipe 6 and blocked by the pressure-limiting membrane device 19. Then, it is discharged to the first air flow channel 20 through the second air flow channel 21. In the process of the gas passing through the first air flow channel 20, the safety striker 22 arranged in the first air flow channel 20 is pushed to move downward, and the safety striker 22 is brought into contact with the needle-piercing primer 23 arranged in the first cavity, so that the needle-piercing primer 23 ignites the composite solid gas-generating agent to produce composite gas.

[0055] The bottle head valve 17 is arranged on the top of the protective agent storage tank 3. The protective agent storage tank 3 is provided with a chamber for storing the protective medium. The bottom of the chamber is provided with a groove 24. The air inlet end of the spray pipe 6 is provided in the groove 24. A piston 25 is provided in the chamber. The piston 25 divides the chamber into a push chamber and an extrusion chamber arranged at intervals in the upper and lower parts. The push chamber is connected to the first cavity. The piston 25 is slidably sleeved on the spray pipe 6.

[0056] The composite solid gas generating agent is ignited to generate composite gas which enters the pushing chamber and pushes the piston 25 downward. The piston 25 squeezes the protective medium in the extrusion chamber to flow from the groove 24 to the inlet end of the spray channel.

[0057] The pressure-limiting membrane device 19 includes a clamping assembly arranged in the spray pipe 6, and the clamping assembly includes an upper clamper 27 and a lower clamper 28 connected to each other in an upper and lower manner. The upper clamper 27 and the lower clamper 28 are both hollow, and a pressure-limiting membrane 29 is provided at the connection between the upper clamper 27 and the lower clamper 28. A blade 30 is provided on the upper clamper 27.

[0058] When the protective medium entering the spray pipe 6 from the inlet end of the spray pipe 6 passes through the pressure limiting diaphragm 29, it pushes the pressure limiting diaphragm 29 to bend upward, and the upward bent pressure limiting diaphragm 29 is cut by the blade 30, so that the protective medium passes through the pressure limiting membrane device 19.

[0059] The sprinkler 4 includes a sprinkler joint body 31, in which a second cavity is provided, a second diaphragm pressure plate 33 and a second safety diaphragm 32 arranged on the second diaphragm pressure plate 33 and blocking the second cavity are provided in the sprinkler joint body 31, a second diaphragm pressure plate 33 is provided on the second diaphragm pressure plate 33, and a second diaphragm striker 34 is provided on the second diaphragm pressure plate 33, and the second diaphragm striker 34 faces the arc-shaped curved side of the second safety diaphragm 32 so that the second safety diaphragm 32 is subjected to force and punctured by the second diaphragm striker 34, a plurality of nozzles 35 are provided on the sprinkler joint body 31, and the sprinkler pipeline 6 is provided with a branch pipe 36, one end of the branch pipe 36 is connected to the temperature sensor 1, and the other end is connected to the sprinkler pipeline 6 arranged between the check valve 7 and the passive starter 2, and the sprinkler joint body 31 is connected to the branch pipe 36.

[0060] The protective medium passes through the pressure-limiting membrane device 19 and reaches the second cavity through the spray pipe 6 and the branch pipe 36. The protective medium pushes the second safety diaphragm 32 toward one side of the second diaphragm striker 34, and the second safety diaphragm 32 is divided by the second diaphragm striker 34. Finally, the protective medium is sprayed out through the nozzle 35 to achieve cooling and fire extinguishing treatment of the electrical device.

[0061] When the protective medium passes through the passive starter 2 and enters the first channel, the protective medium in the flowing state pushes the check valve core 9 to block the small-diameter end, so that the entire first channel is in a closed state. At this time, the protective medium is discharged from the branch pipe 36 to the nozzle 4.

[0062] When the temperature sensor 1 is in an unreacted state, the pressure limiting diaphragm 29 of the pressure limiting membrane device 19 blocks the spray pipe 6 to prevent the protective medium from passing through the pressure limiting membrane device 19 when the temperature sensor 1 is in an unreacted state. At the same time, the first safety diaphragm 13 of the passive starter 2 can also prevent the protective medium from passing through the spray pipe 6 to reach the sprinkler head 4 when the temperature sensor 1 is in an unreacted state, thereby avoiding the sprinkler head 4 from not spraying.

[0063] An emergency start pull ring 26 is provided on the outer side of the bottle head valve 17. By pulling the emergency start pull ring 26, the needle-piercing cap 23 in the bottle head valve 17 is triggered to ignite the composite solid gas generating agent to generate composite gas, which is convenient for manual operation in an emergency.

[0064] Although the present invention has been described herein with reference to a number of illustrative embodiments thereof, it will be understood that numerous other modifications and implementations may be devised by those skilled in the art that fall within the scope and spirit of the principles disclosed herein. More specifically, within the scope of the present disclosure, the drawings, and the claims, numerous variations and modifications may be made to the components and / or layout of the subject combination arrangement. In addition to variations and modifications to the components and / or layout, other uses will also be apparent to those skilled in the art.

Claims

1. An active electrical protection device, characterized in that: include: A temperature sensor (1) is provided with a temperature sensing medium therein, the temperature sensing medium being used to sense the ambient temperature and generate gas as the temperature rises; a passive starter (2) is connected to the temperature sensor (1), and the gas transported to the passive starter (2) through the temperature sensor (1) triggers the passive starter (2) to operate; a protective agent storage tank (3) is used to store the protective medium; a nozzle (4) is provided at the bottom of the temperature sensor (1) and is used to spray out the protective medium; A gas generator (5), wherein the passive starter (2) ignites the gas generator (5) when it is actuated, and the gas generator (5) is used to generate gas to drive the protective medium in the protective agent storage tank (3) to be sprayed out through the nozzle (4); and a spray pipeline (6), wherein the temperature sensor (1), the passive starter (2), the gas generator (5) and the protective agent storage tank (3) are sequentially arranged on the spray pipeline (6), and the nozzle (4) is connected to the spray pipeline (6); A check valve (7) is provided on the spray pipeline (6) between the temperature sensor (1) and the passive starter (2), the gas generator (5) includes a bottle head valve (17), a first cavity is provided in the bottle head valve (17), a top cover (18) for closing the first cavity is provided on the top of the bottle head valve (17), a through hole for the spray pipeline (6) to pass through is provided in the middle of the top cover (18), a pressure limiting membrane device (19) is provided at the connection between the spray pipeline (6) and the top cover (18), a first air flow channel (20) is provided vertically on the top cover (18), a second air flow channel (21) is provided horizontally in the top cover (18), the two ends of the second air flow channel (21) are respectively connected to the first air flow channel (20) and the spray pipeline (6), and the second air flow channel (2 1) is arranged above the pressure-limiting membrane device (19) at intervals, a safety striker (22) is slidingly provided in the first air flow channel (20), a needle-piercing primer (23) and a composite solid gas-generating agent are provided in the first cavity, the safety striker (22) drives the safety striker (22) to strike the needle-piercing primer (23) through the gas transported from the second air flow channel (21) to the first air flow channel (20), so that the needle-piercing primer (23) ignites the composite solid gas-generating agent to generate composite gas, the nozzle (4) includes a nozzle joint body (31), the spray pipeline (6) is provided with a branch pipe (36), one end of the branch pipe (36) is connected to the spray pipeline (6) arranged between the check valve (7) and the passive starter (2), and the other end of the branch pipe (36) is connected to the nozzle joint body (31);The pressure-limiting membrane device (19) includes a clamping assembly arranged in the spray pipeline (6), and the clamping assembly includes an upper clamp (27) and a lower clamp (28) connected to each other in an upper and lower manner. The upper clamp (27) and the lower clamp (28) are both hollow, and a pressure-limiting membrane (29) is provided at the connection between the upper clamp (27) and the lower clamp (28). A blade (30) is provided on the upper clamp (27). When the protective medium entering the spray pipeline (6) from the inlet end of the spray pipeline (6) passes through the pressure-limiting membrane (29), the pressure-limiting membrane (29) is pushed to bend upward, and the upwardly bent pressure-limiting membrane (29) is divided by the blade (30), so that the protective medium passes through the pressure-limiting membrane device (19).

2. An active electrical protection device according to claim 1, characterized in that: The check valve (7) includes a valve body (8), a first channel is provided in the valve body (8), a check valve core (9) is slidably provided in the first channel, the check valve core (9) is connected to a spring (10), the spring (10) is connected to an adjustment seat (11) connected to the valve body (8), and the spring (10) abuts against the check valve core (9) so that the check valve core (9) blocks the first channel.

3. An active electrical protection device according to claim 1, characterized in that: The passive starter (2) includes a starter connector (12) having a second channel therein, wherein a first safety diaphragm (13), a first diaphragm striker (14), a first diaphragm pressure plate (15) and a starter adjustment nut (16) are provided therein, wherein one end of the first safety diaphragm (13) is connected to the starter connector (12), and the other end is connected to the first diaphragm pressure plate (15), the first diaphragm striker (14) is arranged on the first diaphragm pressure plate (15), the moving end surface of the first safety diaphragm (13) is arranged toward the temperature sensor (1), and one end of the starter adjustment nut (16) is connected to the starter connector (12), and the other end is connected to the spray pipe (6).

4. An active electrical protection device according to claim 3, characterized in that: The bottle head valve (17) is arranged on the top of the protective agent storage tank (3). The protective agent storage tank (3) is provided with a chamber for storing the protective medium. The bottom of the chamber is provided with a groove (24). The air inlet end of the spray pipeline (6) is provided in the groove (24). A piston (25) is provided in the chamber. The piston (25) divides the chamber into a push chamber and an extrusion chamber which are arranged at intervals in the upper and lower parts. The push chamber is connected to the first cavity. The piston (25) is slidably sleeved on the spray pipeline (6).

5. The active electrical protection device according to claim 3, characterized in that: An emergency start pull ring (26) is provided on the outer side of the bottle head valve (17).

6. An active electrical protection device according to claim 1, characterized in that: A second cavity is provided in the nozzle joint body (31), a second diaphragm pressure plate (33) and a second safety diaphragm (32) provided on the second diaphragm pressure plate (33) and blocking the second cavity are provided in the second cavity, a second diaphragm striker (34) is provided on the second diaphragm pressure plate (33), and the second diaphragm striker (34) faces the arc-shaped curved side of the second safety diaphragm (32) so that the second safety diaphragm (32) is subjected to force and punctured by the second diaphragm striker (34), and a plurality of nozzles (35) are provided on the nozzle joint body (31).

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