Safe electric control box capable of inhibiting electric spark ignition caused by electric leakage

Abstract

The invention relates to the technical field of power distribution cabinets, in particular to a safe power utilization control box capable of inhibiting electric spark ignition caused by electric leakage, the control box comprises a box body, a working chamber is arranged in the box body, and a mounting rack is arranged in the working chamber. The power device is provided with the protection mechanism, and the protection mechanism has the functions of no-power early warning and no-power prevention, that is, when the box body is electrified due to electric leakage of the power device, if the electroscope or the warning lamp breaks down, the protection mechanism can automatically control the exhaust chamber to communicate with the gas storage chamber, so that an inert gas extinguishing agent in the gas storage chamber enters the working chamber, and the power device is protected. According to the technical scheme, on one hand, fire disasters caused by electric leakage of the electric power devices in the working chamber are prevented, and on the other hand, working personnel are informed of current in the box body, so that the working personnel are prevented from being in contact with the box body under the condition of no preparation.

Description

Technical Field

[0001] The invention relates to the technical field of power distribution cabinets, in particular to a safe power control box capable of suppressing electric spark ignition caused by leakage. Background Art

[0002] The safety electricity control box is a device used to ensure the safety of electrical equipment and power systems. Its main functions include electrical protection, control and monitoring, aiming to prevent electrical accidents such as electrical fires, equipment damage, etc., and ensure the safety of electricity use.

[0003] In order to ensure the normal use of power devices, current power control boxes usually require staff to regularly perform leakage detection on the wires inside the control box. However, this detection method has a lag and cannot detect wire damage in time. In addition, in order to avoid the occurrence of fire, current power control boxes usually have a fire extinguishing mechanism on the outside and a temperature sensor on the inside of the box. However, the existing fire extinguishing mechanism sometimes malfunctions after being placed for a long time, which results in the fire extinguishing mechanism being unable to work effectively when it is needed, resulting in safety accidents. Summary of the invention

[0004] The purpose of the present invention is to provide a safe electricity control box which can suppress electric spark ignition caused by leakage, so as to solve the problems raised in the prior art.

[0005] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: the control box comprises a box body, a working room is arranged inside the box body, a mounting frame is arranged inside the working room, an electric device is fixed by the mounting frame, a box door is arranged at the side end of the working room, the box door separates the working room from the external environment, an exhaust chamber is arranged above the working room, the exhaust chamber is connected with the working room, an air storage chamber is arranged above the exhaust chamber, a second partition is arranged between the exhaust chamber and the air storage chamber, a first exhaust hole is arranged on the second partition, a protective mechanism is arranged on the side of the first exhaust hole close to the air storage chamber, an inert gas fire extinguishing agent is arranged in the air storage chamber, a tester, a warning light and an early warning device are arranged above the box body, the tester is connected to the warning light, whether the box body is energized is detected by the tester, the warning light is used to warn the staff, the protective mechanism is connected to the early warning device, and the present invention is normally working. The exhaust chamber is separated from the gas storage chamber by the protective mechanism. When the electrical device in the studio ignites due to leakage, the exhaust chamber is connected to the gas storage chamber through the protective mechanism. At this time, the inert gas fire extinguishing agent arranged in the gas storage chamber enters the working room to reduce the oxygen content in the studio and inhibit the combustion of the electrical device in the studio. Compared with the flame retardant measures currently used in the power control box, the protective mechanism of the present invention also has the functions of no-electricity warning and no-electricity prevention. That is, when the electrical device causes the box to be energized due to leakage, if the tester or the warning light fails, the protective mechanism will automatically control the exhaust chamber to be connected to the gas storage chamber, so that the inert gas fire extinguishing agent in the gas storage chamber enters the working room. In addition, the protective mechanism will also make the early warning device light up. Through the above technical scheme, on the one hand, it can prevent the electrical device in the studio from causing a fire due to leakage, and on the other hand, it can tell the staff that there is current in the box to prevent the staff from touching the box without preparation.

[0006] Furthermore, several groups of temperature detectors are arranged in the working chamber, and the protection mechanism includes a protection seat, a second electromagnet and a sealing frame. An active cavity and an exhaust channel are arranged in the protection seat. The second electromagnet is arranged below the active cavity. A second exhaust hole is arranged at one end of the exhaust channel close to the first exhaust hole, and the first exhaust hole is aligned with the second exhaust hole. One end of the sealing frame is arranged on the second exhaust hole, and the other end of the sealing frame is arranged in the active cavity. The sealing frame and the active cavity are connected by a sealing spring. The temperature detector is connected to the second electromagnet, and the upper and lower ends of the sealing frame are magnetic. The present invention determines whether ignition occurs in the working chamber through several groups of temperature detectors. If ignition occurs in the working chamber, the second electromagnet will generate a group of magnetic fields that repel the sealing frame to drive the sealing frame to move upward, thereby connecting the exhaust channel, the second exhaust hole and the first exhaust hole. At this time, the inert gas fire extinguishing agent in the gas storage chamber enters the working chamber to suppress combustion of the electrical equipment in the studio.

[0007] Furthermore, the protection mechanism also includes a discharge head, a compression plate and a magnetic block. The protection seat is also provided with a first air cavity and a second air cavity, the first air cavity and the second air cavity are connected, one end of the discharge head is connected to the box body, and the other end of the discharge head is arranged in the second air cavity. The compression plate is arranged in the first air cavity through a compression spring rod, and one end of the first air cavity away from the second air cavity is connected to the lower end of the active cavity. The magnetic block is arranged at the upper end of the exhaust channel, compressed gas is arranged in the first air cavity, and explosive gas is arranged in the second air cavity. If the box in the present invention is charged due to leakage of the electrical device, the charge on the box will produce a discharge phenomenon at the tip of the discharge head, so that the explosive gas in the second air cavity will explode and expand, thereby pushing the compression plate to move, and the compressed gas in the first air cavity is squeezed into the active cavity through the compression plate. Under the action of air pressure, the sealing frame moves up. When the sealing frame moves up, the sealing frame contacts and is attracted to the magnetic block, so as to facilitate the inert gas fire extinguishing agent in the gas storage chamber to enter the working room, thereby preventing the electrical device in the working room from causing a fire due to leakage.

[0008] Furthermore, an early warning cover is provided above the box body, and the early warning cover is connected to the box body through a support, a glass tube is provided inside the early warning cover, and a striker is provided at one end of the support close to the glass tube, one end of the striker is provided in the support and is wound with a spring, and the other end of the striker is provided outside the support, ester compounds and fluorescent agents are provided in the glass tube, and peroxides are provided in the early warning cover, and when the compression plate squeezes the compressed gas in the first air cavity, part of the compressed gas will enter the support, and the striker will move upward under the action of the air pressure, and the glass tube will break at this time, so that the ester compound, fluorescent agent and peroxide will come into contact, and then emit light to tell the staff that there is current in the box body, so as to avoid the staff from accidentally touching the box body and getting an electric shock during maintenance.

[0009] Furthermore, a detection mechanism and a linear motor are also provided inside the studio, and the detection mechanism and the linear motor are both arranged on the side of the mounting frame away from the box door. The linear motors are provided in several groups, and the several groups of linear motors are relatively arranged at the two ends of the studio, and a group of detection mechanisms is provided between every two groups of relatively arranged linear motors.

[0010] Furthermore, the detection mechanism includes a positioning seat, a detection claw and a telescopic seat, a cylinder and a telescopic plate are arranged in the positioning seat, the working end of the cylinder is connected to the telescopic plate, the telescopic plate is connected to the telescopic seat, and the detection claw is arranged at one end of the telescopic seat close to the mounting frame.

[0011] Furthermore, the detection claw includes a fixed claw and a movable claw, a slider and a first electromagnet are arranged in the telescopic seat, the slider is magnetic and is movably installed in the telescopic seat through a telescopic spring, the fixed claw is fixedly installed on the telescopic seat, and the movable claw is fixedly installed on the slider, and the fixed claw and the movable claw are both provided with coils and iron cores. When the present invention fixes the electric device to the mounting frame, it is necessary to first adjust the position of the detection mechanism by a linear motor, and then drive the telescopic plate and the telescopic seat to move by a cylinder, and then insert the wire between the fixed claw and the movable claw, and finally turn on the first electromagnet, the first electromagnet generates a set of magnetic fields that repel the slider so that the fixed claw and the movable claw are closed, the coils in the fixed claw and the movable claw are connected to an external current detection device, and by monitoring the changes in the induced current on the coil, the staff can monitor in real time whether the wires in the box are damaged and leaking. Compared with the current staff using clamp meters and other equipment to detect whether the wires in the box are leaking, the present invention reduces the labor intensity of the staff on the one hand, and can timely detect leakage accidents on the other hand, thereby improving the safety of electricity use.

[0012] Furthermore, a fan and a cooling chamber are provided below the working room, a plurality of ventilation holes are provided on the side walls of the working room, the cooling chamber is connected with the exhaust chamber through a heat exchange pipe, a cooler is provided in the cooling chamber, the air inlet end of the fan is connected with the cooling chamber, and the air outlet end of the fan is connected with the plurality of ventilation holes through a ventilation pipe.

[0013] Furthermore, a heat exchange chamber is provided on the side of the studio away from the box door, a first partition is provided between the heat exchange chamber and the studio, the heat exchange tube is located in the heat exchange chamber, and a plurality of groups of air guide holes are provided on the end of the heat exchange chamber away from the first partition, a group of sealing plates are provided in each group of air guide holes, and a group of sealing motors are provided on the side ends of each group of sealing plates. When the external environment is in a low temperature state, the staff can drive the sealing plate to rotate through the sealing motor to connect the heat exchange chamber with the external environment. At this time, the cooler is in a closed state, and the gas in the studio flows along the exhaust chamber-heat exchange tube-cooling chamber-studio through the fan, and the environment in the studio is cooled down by the external environment. When the external environment is in a high temperature state, the staff can drive the sealing plate to rotate through the sealing motor to separate the heat exchange chamber from the external environment. At this time, the cooler is in an open state, and the gas in the studio flows along the exhaust chamber-heat exchange tube-cooling chamber-studio through the fan, and the environment in the studio is cooled down by the cooler. Compared with the current power control box, the present invention can change the cooling method in real time according to the external environment, thereby reducing energy usage.

[0014] Compared with the prior art, the present invention has the following beneficial effects: 1. Compared with the fire prevention measures currently used in the power control box, the present invention is provided with a protection mechanism. When the electric device in the studio ignites due to leakage, the exhaust chamber is connected to the gas storage chamber through the protection mechanism. At this time, the inert gas fire extinguishing agent arranged in the gas storage chamber enters the studio to reduce the oxygen content in the studio and inhibit the combustion of the electric device in the studio. In addition, the protection mechanism in the present invention also has the functions of no-power warning and no-power prevention. That is, when the box is energized due to leakage of the electric device, if the tester or the warning light fails, the protection mechanism will automatically control the exhaust chamber to be connected to the gas storage chamber, so that the inert gas fire extinguishing agent in the gas storage chamber enters the studio and the early warning device lights up at the same time. Through the above technical scheme, on the one hand, the electric device in the studio is prevented from causing a fire due to leakage, and on the other hand, the staff is informed that there is current in the box to prevent the staff from contacting the box without preparation. 2. The present invention is also provided with a detection mechanism, which monitors in real time whether the wires in the box are damaged or leaking electricity. Compared with the current situation where the staff regularly use clamp meters and other equipment to detect whether the wires in the box are leaking electricity, the present invention reduces the labor intensity of the staff on the one hand, and can timely discover leakage accidents on the other hand, thereby improving the safety of electricity use. Finally, the detection mechanism in the present invention also has an automatic separation function. When the present invention fails and needs maintenance, the fixed claw and the movable claw in the detection mechanism will automatically separate, and the staff can remove the wires on the one hand; 3. The present invention is also provided with a heat exchange chamber and a heat exchange tube. If the external environment is in a low temperature state, the sealing motor drives the sealing plate to rotate so that the heat exchange chamber is connected with the external environment, and the environment in the working chamber is cooled down by the external environment. When the external environment is in a high temperature state, the sealing motor drives the sealing plate to rotate so that the heat exchange chamber is separated from the external environment. At this time, the cooler is turned on to cool down the environment in the working chamber. Compared with the current power control box, the present invention can change the cooling mode in real time according to the external environment, thereby reducing the use of energy. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 It is a schematic diagram of the appearance structure of the present invention; Figure 2 It is a schematic diagram of the internal structure of the present invention; Figure 3 It is a schematic diagram of the structure of the detection mechanism of the present invention; Figure 4 It is a schematic diagram of the internal structure of the detection mechanism of the present invention; Figure 5 For the present invention Figure 4 Schematic diagram of the structure of the middle B part; Figure 6 For the present invention Figure 4 Schematic diagram of the structure of the middle AA section; Figure 7 is a cross-sectional view of the present invention; Figure 8 It is a schematic diagram of the structure of the protection mechanism of the present invention; Fig. 9 It is a schematic diagram of the structure of the early warning device of the present invention.

[0016] In the figure: 1, box; 11, working room; 111, ventilation hole; 112, first partition; 113, mounting frame; 114, detection mechanism; 1141, positioning seat; 1142, detection claw; 11421, fixed claw; 11422, movable claw; 1143, telescopic seat; 11431, slider; 11432, first electromagnet; 1144, cylinder; 1145, telescopic plate; 115, linear motor; 12, fan; 13, cooling chamber; 14, heat exchange chamber; 141, sealing plate; 142 , heat exchange tube; 15, exhaust chamber; 151, second partition; 1511, first exhaust hole; 16, air storage chamber; 161, protective seat; 1611, first air cavity; 1612, second air cavity; 1613, movable cavity; 1614, second exhaust hole; 1615, exhaust channel; 162, discharge head; 163, compression plate; 164, magnetic block; 165, second electromagnet; 166, sealing frame; 2, box door; 3, ventilation pipe; 4, warning cover; 41, glass tube; 42, striker; 43, support. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0018] Example: Figure 1-Figure 9As shown, the present invention provides a technical solution for a safe power control box that can suppress the ignition of electric sparks caused by leakage. The control box includes a box body 1, a working room 11 is arranged inside the box body 1, a mounting frame 113 is arranged inside the working room 11, and an electric device is fixed by the mounting frame 113. A box door 2 is arranged at the side end of the working room 11, and the working room 11 is separated from the external environment by the box door 2. An exhaust chamber 15 is arranged above the working room 11, and the exhaust chamber 15 is connected to the working room 11. The gas storage chamber 16 is provided with a second partition 151 between the exhaust chamber 15 and the gas storage chamber 16, and a first exhaust hole 1511 is provided on the second partition 151. A protective mechanism is provided on the side of the first exhaust hole 1511 close to the gas storage chamber 16. An inert gas fire extinguishing agent is provided in the gas storage chamber 16. A tester, a warning light and an early warning device are provided above the box 1. The tester is connected to the warning light. Whether the box 1 is charged is detected by the tester, and the staff is warned by the warning light. The protective mechanism is connected to the early warning device. The present invention is in normal working During operation, the exhaust chamber 15 is separated from the gas storage chamber 16 by a protective mechanism. When the electrical device in the studio 11 ignites due to leakage, the exhaust chamber 15 is connected to the gas storage chamber 16 through the protective mechanism. At this time, the inert gas fire extinguishing agent arranged in the gas storage chamber 16 enters the studio 11 to reduce the oxygen content in the studio 11 and inhibit the combustion of the electrical device in the studio 11. Compared with the flame retardant measures currently used in the power control box, the protective mechanism of the present invention also has the functions of no-electricity warning and no-electricity prevention. That is, when the electrical device causes the box 1 to be energized due to leakage, if the tester or the warning light fails, the protective mechanism will automatically control the exhaust chamber 15 to be connected to the gas storage chamber 16, so that the inert gas fire extinguishing agent in the gas storage chamber 16 enters the studio 11. In addition, the protective mechanism will also make the early warning device light up. Through the above technical scheme, on the one hand, it is prevented that the electrical device in the studio 11 causes a fire due to leakage, and on the other hand, it tells the staff that there is current in the box 1 to prevent the staff from contacting the box 1 without preparation.

[0019] like Figure 2 , Figure 7 and Figure 8As shown, a plurality of groups of temperature detectors are arranged in the working room 11, and the protection mechanism includes a protection seat 161, a second electromagnet 165 and a sealing frame 166. An active cavity 1613 and an exhaust channel 1615 are arranged in the protection seat 161. The second electromagnet 165 is arranged below the active cavity 1613. A second exhaust hole 1614 is arranged at one end of the exhaust channel 1615 close to the first exhaust hole 1511. The first exhaust hole 1511 is aligned with the second exhaust hole 1614. One end of the sealing frame 166 is arranged on the second exhaust hole 1614, and the other end of the sealing frame 166 is arranged in the active cavity 1613. The sealing frame 166 is aligned with the active cavity 1613. 13 are connected by a sealing spring, the temperature detector is connected to the second electromagnet 165, and the upper and lower ends of the sealing frame 166 are magnetic. The present invention uses a plurality of groups of temperature detectors to determine whether ignition occurs in the working room 11. If ignition occurs in the working room 11, the second electromagnet 165 will generate a group of magnetic fields that repel the sealing frame 166 to drive the sealing frame 166 to move upward, thereby connecting the exhaust channel 1615, the second exhaust hole 1614 and the first exhaust hole 1511. At this time, the inert gas fire extinguishing agent in the gas storage chamber 16 enters the working room 11 to suppress the combustion of the electrical device in the working room 11.

[0020] like Figure 2 , Figure 7 and Figure 8 As shown, the protection mechanism also includes a discharge head 162, a compression plate 163 and a magnetic block 164. A first air cavity 1611 and a second air cavity 1612 are also provided in the protection seat 161. The first air cavity 1611 and the second air cavity 1612 are connected. One end of the discharge head 162 is connected to the box body 1, and the other end of the discharge head 162 is arranged in the second air cavity 1612. The compression plate 163 is arranged in the first air cavity 1611 through a compression spring rod. One end of the first air cavity 1611 away from the second air cavity 1612 is connected to the lower end of the active cavity 1613. The magnetic block 164 is arranged at the upper end of the exhaust channel 1615. Compressed gas is arranged in the first air cavity 1611, and explosive gas is arranged in the second air cavity 1612.

[0021] like Figure 1 , Fig. 9 As shown, an early warning cover 4 is arranged above the box body 1, and the early warning cover 4 is connected to the box body 1 through a support 43. A glass tube 41 is arranged inside the early warning cover 4, and a striker 42 is arranged at one end of the support 43 close to the glass tube 41. One end of the striker 42 is arranged in the support 43 and is wound with a spring, and the other end of the striker 42 is arranged outside the support 43. Ester compounds and fluorescent agents are arranged in the glass tube 41, and peroxides are arranged in the early warning cover 4.

[0022] If the box body 1 in the present invention is charged due to leakage of the electrical device, the charge on the box body 1 will produce a discharge phenomenon at the tip of the discharge head 162, so that the explosive gas in the second air cavity 1612 will explode and expand, thereby pushing the compression plate 163 to move, and the compressed gas in the first air cavity 1611 is squeezed into the inside of the active cavity 1613 and the support 43 through the compression plate 163. Finally, under the action of air pressure, the sealing frame 166 and the striker 42 will both move up. When the sealing frame 166 moves up, the sealing frame 166 and the magnetic block 164 are in contact and attracted together, so as to facilitate the inert gas fire extinguishing agent in the gas storage chamber 16 to enter the studio 11, and prevent the electrical device in the studio 11 from causing a fire due to leakage. When the striker 42 moves up, the glass tube 41 breaks, so that the ester compound, the fluorescent agent and the peroxide come into contact, and then emit light to tell the staff that there is current in the box body 1, so as to avoid the staff accidentally touching the box body 1 and getting an electric shock during maintenance.

[0023] like Figure 2 and Figure 3 As shown, a detection mechanism 114 and a linear motor 115 are also provided inside the studio 11. The detection mechanism 114 and the linear motor 115 are both arranged on the side of the mounting frame 113 away from the box door 2. There are several groups of linear motors 115, and the several groups of linear motors 115 are relatively arranged at the two ends of the studio 11. A group of detection mechanisms 114 is arranged between every two groups of relatively arranged linear motors 115.

[0024] like Figure 2-Figure 7 As shown, the detection mechanism 114 includes a positioning seat 1141, a detection claw 1142 and a telescopic seat 1143, and a cylinder 1144 and a telescopic plate 1145 are arranged in the positioning seat 1141. The working end of the cylinder 1144 is connected to the telescopic plate 1145, and the telescopic plate 1145 is connected to the telescopic seat 1143. The detection claw 1142 is arranged at one end of the telescopic seat 1143 close to the mounting frame 113.

[0025] like Figure 2-Figure 7 As shown, the detection claw 1142 includes a fixed claw 11421 and a movable claw 11422, a slider 11431 and a first electromagnet 11432 are arranged in the telescopic seat 1143, the slider 11431 is magnetic and is movably installed in the telescopic seat 1143 through a telescopic spring, the fixed claw 11421 is fixedly installed on the telescopic seat 1143, the movable claw 11422 is fixedly installed on the slider 11431, and coils and iron cores are arranged in both the fixed claw 11421 and the movable claw 11422.

[0026] When the present invention fixes the electric device to the mounting frame 113, it is necessary to first adjust the position of the detection mechanism 114 by the linear motor 115, then drive the telescopic plate 1145 and the telescopic seat 1143 to move by the cylinder 1144, then insert the wire into between the fixed claw 11421 and the movable claw 11422, and finally turn on the first electromagnet 11432. The first electromagnet 11432 generates a set of magnetic fields that repel the slider 11431, so that the fixed claw 11421 and the movable claw 11422 are closed, and the coils in the fixed claw 11421 and the movable claw 11422 are connected to the external current detection device. By monitoring the changes in the induced current on the coil, the staff can monitor in real time whether the wire in the box 1 is damaged and leaking. Compared with the current staff using clamp meters and other equipment to detect whether the wire in the box 1 is leaking, the present invention reduces the labor intensity of the staff on the one hand, and can timely detect leakage accidents on the other hand, thereby improving the safety of electricity use.

[0027] like Figure 2 and Figure 7 As shown, a fan 12 and a cooling chamber 13 are provided below the working room 11, a plurality of ventilation holes 111 are provided on the side wall of the working room 11, the cooling chamber 13 is connected with the exhaust chamber 15 through a heat exchange pipe 142, a cooler is provided in the cooling chamber 13, an air inlet end of the fan 12 is connected with the cooling chamber 13, and an air outlet end of the fan 12 is connected with the plurality of ventilation holes 111 through a ventilation pipe 3.

[0028] like Figure 2 and Figure 7 As shown, a heat exchange chamber 14 is provided on the side of the working room 11 away from the box door 2, a first partition 112 is provided between the heat exchange chamber 14 and the working room 11, a heat exchange tube 142 is located in the heat exchange chamber 14, and a plurality of groups of air guide holes are provided at one end of the heat exchange chamber 14 away from the first partition 112, a group of sealing plates 141 are provided in each group of air guide holes, and a group of sealing motors are provided at the side ends of each group of sealing plates 141.

[0029] When the external environment is in a low temperature state, the staff can drive the sealing plate 141 to rotate through the sealing motor to connect the heat exchange chamber 14 with the external environment. At this time, the cooler is in a closed state, and the gas in the working room 11 is made to flow along the exhaust chamber 15-heat exchange tube 142-cooling chamber 13-working room 11 through the fan 12, and the environment in the working room 11 is cooled down by the external environment. When the external environment is in a high temperature state, the staff can drive the sealing plate 141 to rotate through the sealing motor to separate the heat exchange chamber 14 from the external environment. At this time, the cooler is in an open state, and the gas in the working room 11 is made to flow along the exhaust chamber 15-heat exchange tube 142-cooling chamber 13-working room 11 through the fan 12, and the environment in the working room 11 is cooled down by the cooler. Compared with the current power control box, the present invention can change the cooling mode in real time according to the external environment, thereby reducing energy consumption.

[0030] The working principle of the present invention is as follows: before use, the power device is fixed to the mounting frame 113, and then the wire is inserted between the fixed claw 11421 and the movable claw 11422. By monitoring the changes in the induced current on the internal coils of the fixed claw 11421 and the movable claw 11422, the staff can monitor in real time whether the wire in the box body 1 is damaged or leaking. When the present invention is working, if the external environment is in a low temperature state, the sealing motor drives the sealing plate 141 to rotate so that the heat exchange chamber 14 is connected to the external environment, and the environment in the studio 11 is cooled by the external environment. When the external environment is in a high temperature state, the sealing motor drives the sealing plate 141 to rotate so that the heat exchange chamber 14 is separated from the external environment. At this time, the cooler is turned on to cool the environment in the studio 11. When the power in the studio 11 is low, the sealing plate 141 is driven to rotate by the sealing motor to separate the heat exchange chamber 14 from the external environment. When the device ignites due to leakage, the second electromagnet 165 will drive the sealing frame 166 to move upward. At this time, the inert gas fire extinguishing agent in the gas storage chamber 16 enters the working room 11 to suppress the combustion of the electrical device in the working room 11. Finally, if the box 1 is energized due to leakage of the electrical device, the explosive gas in the second air cavity 1612 will explode and expand, thereby pushing the compression plate 163 to move. Under the action of air pressure, the sealing frame 166 and the striker 42 will both move upward. On the one hand, the inert gas fire extinguishing agent in the gas storage chamber 16 enters the working room 11 to prevent the electrical device in the working room 11 from causing a fire due to leakage. On the other hand, the glass tube 41 is shattered, so that the ester compound, the fluorescent agent and the peroxide are in contact, and then emit light to tell the staff that there is current in the box 1, so as to avoid the staff accidentally touching the box 1 during maintenance and getting an electric shock.

[0031] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

Claims

1. A safe electricity control box that can suppress electric spark ignition caused by leakage, characterized by: The control box comprises a box body (1), an early warning device is arranged above the box body (1), a working room (11) is arranged inside the box body (1), a box door (2) is arranged at a side end of the working room (11), an exhaust chamber (15) is arranged above the working room (11), the exhaust chamber (15) is communicated with the working room (11), an air storage chamber (16) is arranged above the exhaust chamber (15), a second partition (151) is arranged between the exhaust chamber (15) and the air storage chamber (16), a first exhaust hole (1511) is arranged on the second partition (151), a protective mechanism is arranged on a side of the first exhaust hole (1511) close to the air storage chamber (16), an inert gas fire extinguishing agent is arranged in the air storage chamber (16), and the protective mechanism has no-electricity early warning and no-electricity prevention functions.

2. A safe electricity control box capable of suppressing spark ignition caused by leakage according to claim 1, characterized in that: The working room (11) is provided with a mounting frame (113), a detection mechanism (114) and a linear motor (115) inside. The detection mechanism (114) and the linear motor (115) are both arranged on a side of the mounting frame (113) away from the box door (2). The linear motor (115) is provided in a plurality of groups. The plurality of groups of linear motors (115) are relatively arranged at two ends inside the working room (11), and a group of detection mechanisms (114) is provided between every two groups of relatively arranged linear motors (115).

3. A safe electricity control box capable of suppressing spark ignition caused by leakage according to claim 1, characterized in that: A fan (12) and a cooling chamber (13) are provided below the working room (11); a plurality of groups of ventilation holes (111) are provided on the side wall of the working room (11); the cooling chamber (13) is connected to the exhaust chamber (15) via a heat exchange pipe (142); a cooler is provided in the cooling chamber (13); an air inlet end of the fan (12) is connected to the cooling chamber (13); and an air outlet end of the fan (12) is connected to the plurality of ventilation holes (111) via a ventilation pipe (3).

4. A safe electricity control box capable of suppressing spark ignition caused by leakage according to claim 3, characterized in that: A heat exchange chamber (14) is provided on a side of the working room (11) away from the box door (2), a first partition (112) is provided between the heat exchange chamber (14) and the working room (11), the heat exchange tube (142) is located in the heat exchange chamber (14), and a plurality of groups of air guide holes are provided at one end of the heat exchange chamber (14) away from the first partition (112), a group of sealing plates (141) are provided in each group of air guide holes, and a group of sealing motors are provided at the side ends of each group of sealing plates (141).

5. A safe electricity control box capable of suppressing electric spark ignition caused by leakage according to any one of claims 1 to 4, characterized in that: A plurality of groups of temperature detectors are arranged in the working room (11); the protection mechanism comprises a protection seat (161), a second electromagnet (165) and a sealing frame (166); an active cavity (1613) and an exhaust channel (1615) are arranged in the protection seat (161); the second electromagnet (165) is arranged below the active cavity (1613); a second exhaust hole (1614) is arranged at one end of the exhaust channel (1615) close to the first exhaust hole (1511); the first exhaust hole (1511) is aligned with the second exhaust hole (1614); one end of the sealing frame (166) is arranged on the second exhaust hole (1614); the other end of the sealing frame (166) is arranged in the active cavity (1613); the sealing frame (166) and the active cavity (1613) are connected via a sealing spring; and the temperature detector is connected to the second electromagnet (165).

6. A safe electricity control box capable of suppressing spark ignition caused by leakage according to claim 5, characterized in that: The protection mechanism further comprises a discharge head (162), a compression plate (163) and a magnetic block (164); a first air cavity (1611) and a second air cavity (1612) are further arranged in the protection seat (161); the first air cavity (1611) and the second air cavity (1612) are connected; one end of the discharge head (162) is connected to the box body (1); the other end of the discharge head (162) is arranged in the second air cavity (1612); the compression plate (163) is arranged in the first air cavity (1611) via a compression spring rod; one end of the first air cavity (1611) away from the second air cavity (1612) is connected to the lower end of the active cavity (1613); the magnetic block (164) is arranged at the upper end of the exhaust channel (1615); compressed gas is arranged in the first air cavity (1611); and explosive gas is arranged in the second air cavity (1612).

7. A safe electricity control box capable of suppressing spark ignition caused by leakage according to claim 6, characterized in that: The early warning device comprises an early warning cover (4), the early warning cover (4) being connected to the box body (1) via a support (43), a glass tube (41) being arranged inside the early warning cover (4), a striker (42) being arranged at one end of the support (43) close to the glass tube (41), an end of the support (43) away from the glass tube (41) being connected to the first air cavity (1611), one end of the striker (42) being arranged inside the support (43) and being wound with a spring, and the other end of the striker (42) being arranged outside the support (43), an ester compound and a fluorescent agent being arranged inside the glass tube (41), and a peroxide being arranged inside the early warning cover (4).

8. A safe electricity control box capable of suppressing spark ignition caused by leakage according to claim 2, characterized in that: The detection mechanism (114) comprises a positioning seat (1141), a detection claw (1142) and a telescopic seat (1143); a cylinder (1144) and a telescopic plate (1145) are arranged in the positioning seat (1141); a working end of the cylinder (1144) is connected to the telescopic plate (1145); the telescopic plate (1145) is connected to the telescopic seat (1143); and the detection claw (1142) is arranged at one end of the telescopic seat (1143) close to the mounting frame (113).

9. A safe electricity control box capable of suppressing spark ignition caused by leakage according to claim 8, characterized in that: The detection claw (1142) comprises a fixed claw (11421) and a movable claw (11422); a slider (11431) and a first electromagnet (11432) are arranged in the telescopic seat (1143); the slider (11431) is movably mounted in the telescopic seat (1143) via a telescopic spring; the fixed claw (11421) is fixedly mounted on the telescopic seat (1143); the movable claw (11422) is fixedly mounted on the slider (11431); and the fixed claw (11421) and the movable claw (11422) are both provided with a coil and an iron core.

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