Protection device and protection method for electrical equipment
By designing protective devices for electrical equipment, including detection devices and control units, the problem of inability to timely discover and deal with internal fires in electrical equipment in the prior art is solved, and timely detection and control of fires are realized, and electrical equipment is protected.
Patent Information
- Application Number
- CN202411594160.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-08
- Publication Date
- 2025-03-18
AI Technical Summary
The existing technology lacks monitoring and early warning structures for electrical equipment, and it is impossible to detect and deal with potential faults and hidden dangers in a timely manner, resulting in the occurrence of fire accidents.
A protective device for electrical equipment is designed, including a box body, a box door, a connecting mechanism, a control unit and a detection device. The fire information inside the box is detected by the detection device, and the connecting mechanism is controlled by the control unit to form an exhaust gap or sealing connection between the box door and the box, and the exhaust pump is controlled to start to extract and discharge the gas inside the box.
It realizes timely detection and control of internal fire conditions of electrical equipment, reduces the entry of combustible gases, prevents the spread of fires, and protects electrical equipment.
Smart Images
Figure CN119651357A_ABST
Abstract
Description
Technical Field
[0001] The present disclosure relates to the technical field of electrical equipment protection, and in particular, to a protection device and a protection method for electrical equipment. Background Art
[0002] Electrical equipment is a general term for equipment that plays a key role in the power system. They are responsible for all aspects of the generation, conversion, transmission, distribution and use of electricity. Therefore, regular maintenance, inspection and replacement of electrical equipment is an important measure to ensure the safe and stable operation of the power system. In related technologies, there is a lack of monitoring and early warning structures for electrical equipment, and potential faults and hidden dangers cannot be discovered and handled in a timely manner, making it difficult to avoid accidents. Summary of the invention
[0003] The purpose of the present disclosure is to provide a protection device and a protection method for electrical equipment, so as to at least partially solve the technical problems existing in the related art.
[0004] In order to achieve the above-mentioned object, the present application provides a protection device for electrical equipment, including a box body, a box door, a connecting mechanism, a control unit and a detection device; The interior of the box is suitable for storing electrical equipment, the first side of the box has an opening, the box door is connected to the first side of the box through a connecting mechanism, and the projection of the opening on the plane where the box door is located is located on the box door; The detection device is installed inside the box and is used to detect fire information of the box. The detection device is electrically connected to the control unit; One end of the connecting mechanism is connected to the box body, and the other end is connected to the box door; The control unit is electrically connected to the connecting mechanism, and is used to control the connecting mechanism to drive the box door to move, so that an exhaust gap is formed between the box door and the box body, or so that the box door and the box body are sealed and connected.
[0005] Optionally, a plurality of the connecting mechanisms are provided, and the box door is connected to the box body through the plurality of the connecting mechanisms; The connecting mechanism comprises a movable portion and a first connecting portion, the movable portion is connected to the first connecting portion, and the control unit is used to control at least a portion of the movable portion to move in a direction close to or away from the opening; The box door is provided with a second connecting portion, and the first connecting portion is connected to the second connecting portion.
[0006] Optionally, the movable portion includes a lead screw and a slider, the slider is threadedly connected to the lead screw to form a lead screw nut mechanism, and the slider is connected to the first connecting portion; The first side is the front side of the box body, and the box body includes a side plate, an upper plate and a bottom plate. The upper plate is provided with a groove, and the lead screw is installed in the groove. The lead screw is configured to be able to rotate along the axis of the lead screw itself, and the slider moves along the axial direction of the lead screw.
[0007] Optionally, the groove is configured as a through groove, a sealing member is disposed inside the groove, and the sealing member is connected to the slider and the front side wall of the groove; The sealing member is used to seal the groove when the box door is sealed and connected to the box body; An adapting portion is provided at a position on the front side of the upper plate corresponding to the second connecting portion, and an outer contour of the adapting portion is adapted to an outer contour of the second connecting portion to achieve a tight connection between the adapting portion and the second connecting portion.
[0008] Optionally, an upper baffle is provided on the front side of the upper plate, a gap is provided between the upper baffle and the upper surface of the box door, and the upper baffle is provided with a avoiding portion for avoiding the second connecting portion; A lower baffle is provided on the front side of the bottom plate, a gap is formed between the lower baffle and the lower surface of the box door, and the lower baffle is provided with an avoidance portion for avoiding the second connecting portion; A plurality of blocks are provided on the side plate, and the blocks are arranged at equal intervals along the height direction of the box body, and the size of the blocks along the direction perpendicular to the box door is not less than the size of the exhaust gap along the direction perpendicular to the box door.
[0009] Optionally, the box body is provided with an exhaust pump with adjustable exhaust power, one end of the exhaust pump is connected to the interior of the box body, and the other end of the exhaust pump is connected to an exhaust pipe, and the exhaust pipe is connected to the external atmosphere; The exhaust pipe is provided with a one-way valve, which allows the gas to be discharged from the inside of the box into the atmosphere; The exhaust pump is electrically connected to the control unit, and the control unit is used to control the start and stop of the exhaust pump and adjust the exhaust power of the exhaust pump.
[0010] Optionally, a plurality of first air ducts and at least one second air duct are arranged on the inner side wall of the box body; The plurality of first air guide pipes are laid on the inner wall of the box at equal intervals along the height direction of the box and are connected to the interior of the box; The second air duct is in communication with the first air duct and is in communication with the exhaust pump; Wherein, the diameter of the exhaust pipe, the diameter of the second air duct and the diameter of the first air duct decrease in sequence.
[0011] Optionally, the protection device further comprises a solar panel, which is disposed on an upper portion of the box body and is electrically connected to the control unit for supplying power to the control unit.
[0012] Optionally, the detection device includes a smoke alarm and a humidity sensor; The smoke alarm and the humidity sensor are installed on the inner side of the box and are electrically connected to the control unit.
[0013] According to a second aspect of the present disclosure, a protection method for electrical equipment is provided. The method is applied to the above-mentioned protection device for electrical equipment, wherein the protection device further includes an exhaust pump. The method includes: When assembling the protection device, the control unit is used to drive the connection mechanism to approach the first side, so that there is an exhaust gap between the first side of the box body and the box door. At this time, the box door is located at the first position; When the control unit receives a signal from the detection device indicating that a fire has occurred in the box, the control unit drives the connection mechanism away from the first side so that the first side of the box and the door are close to each other to form a sealed connection, and the door is located at the second position; The control unit controls the exhaust pump to start, extracts the gas inside the box body and discharges it outside the box body; When the control unit receives a signal from the detection device indicating that the fire has been extinguished, it drives the connection mechanism to restore the position of the door from the second position to the first position.
[0014] Through the above technical scheme, the box body and the box door can be connected through a connecting mechanism. Since the detection device can detect the fire information inside the box body, the detection device is electrically connected to the control unit and can transmit information to the control unit. The control unit can control the activity direction of the connecting mechanism according to the transmitted information and control the connection method between the box body and the box door, which is conducive to timely detection of fire information inside the box body and timely feedback. While ensuring that the box body can be ventilated during normal use, when a fire occurs inside the box body, the box door and the box body are sealed and connected to reduce the entry of combustible gas, which is conducive to timely detection and control of the fire inside the box body, thereby protecting electrical equipment.
[0015] Other features and advantages of the present disclosure will be described in detail in the following detailed description. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the following specific embodiments, they are used to explain the present disclosure but do not constitute a limitation of the present disclosure. In the accompanying drawings: Figure 1 is a three-dimensional schematic diagram of a protection device provided by an exemplary embodiment of the present disclosure; Figure 2 yes Figure 1 A magnified view of part A; Figure 3 is a three-dimensional schematic diagram of another viewing angle of a protection device provided by an exemplary embodiment of the present disclosure; Figure 4 yes Figure 3 A magnified view of part B; Figure 5 yes Figure 3 Enlarged view of part C; Figure 6 is a cross-sectional view of a protection device provided by an exemplary embodiment of the present disclosure; Figure 7 yes Figure 6 A magnified view of part D in the middle; Figure 8 is a three-dimensional schematic diagram of a protection device provided by an exemplary embodiment of the present disclosure, wherein the box door is in a first position; Fig. 9 is a perspective schematic diagram of a protection device provided by an exemplary embodiment of the present disclosure, wherein the rear plate is hidden; Fig.10 is a flow chart of a protection method for electrical equipment provided by an exemplary embodiment of the present disclosure.
[0017] Description of Reference Numerals 100. protection device, 10. box body, 11. opening, 12. side panel, 13. upper plate, 131. groove, 132. adapter, 14. bottom plate, 15. upper baffle, 16. lower baffle, 17. stopper, 18. seal, 19. back plate, 20. box door, 21. second connecting part, 30. connecting mechanism, 31. movable part, 311. lead screw, 312. slider, 32. first connecting part, 40. detection device, 41. smoke alarm, 42. humidity sensor, 50. exhaust gap, 61. exhaust pump, 62. exhaust pipe, 63. first air duct, 64. second air duct, 70. solar panel. DETAILED DESCRIPTION
[0018] The specific embodiments of the present disclosure are described in detail below in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present disclosure, and are not used to limit the present disclosure.
[0019] In the description of the present disclosure, it is necessary to understand that the terms "upper", "lower", etc., indicating orientation or positional relationship, are defined based on the drawing directions shown in the accompanying drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, and a specific orientation structure and operation, and therefore cannot be understood as a limitation on the present disclosure.
[0020] In the present disclosure, it should be noted that the terms used, such as "first", "second", etc., are used to distinguish one element from another element, and do not have order and importance. In addition, in the description with reference to the drawings, the same number in different drawings represents the same element.
[0021] In the description of the present disclosure, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "set", "connect", "connected", and "installed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.
[0022] Electrical equipment plays a vital role in the power system, and its safe and stable operation is directly related to the reliability and safety of the entire power system. Therefore, regular maintenance, inspection and replacement of electrical equipment is an important measure to ensure the safe and stable operation of the power system. It is necessary to strengthen the monitoring and early warning of electrical equipment, timely discover and deal with potential faults and hidden dangers, and prevent accidents. In order to ensure the normal operation of electrical equipment and avoid contact with people other than staff, electrical equipment is generally installed in the equipment box, thereby providing an external protection for the electrical equipment.
[0023] However, since electrical equipment has a variety of electrical switching devices and various lines connected to external circuits, it is very easy to become the starting point of a fire when facing a short circuit in the wires and lines. If the fire cannot be quickly and effectively extinguished, it will cause great economic losses. When a fire occurs inside the box, it is difficult for personnel to determine the internal fire situation from the outside, thus missing the best opportunity to extinguish the fire. Even if an alarm system is set up in the equipment box, it is impossible to achieve the effect of automatic fire extinguishing.
[0024] In view of this, the present disclosure provides a protection device for electrical equipment, such as Figures 1 to 9As shown, it includes a box body 10, a box door 20, a connecting mechanism 30, a control unit and a detection device 40. The interior of the box body 10 is suitable for storing electrical equipment. The first side of the box body 10 has an opening 11. The box door 20 is connected to the first side of the box body 10 through the connecting mechanism 30. The projection of the opening 11 on the plane where the box door 20 is located is located on the box door 20. The detection device 40 is installed in the interior of the box body 10 and is used to detect fire information of the box body 10. The detection device 40 is electrically connected to the control unit. One end of the connecting mechanism 30 is connected to the box body 10, and the other end is connected to the box door 20. The control unit is electrically connected to the connecting mechanism 30 and is used to control the connecting mechanism 30 to drive the box door 20 to move so that an exhaust gap 50 is formed between the box door 20 and the box body 10. For example, at this time, the box body 10 and the box door 20 are arranged at intervals, or so that the box door 20 and the box body 10 are sealed.
[0025] Through the above technical scheme, the box body 10 and the door 20 can be connected through the connecting mechanism 30. Since the detection device 40 can detect the fire information inside the box body 10, the detection device 40 is electrically connected to the control unit and can transmit information to the control unit. The control unit can control the activity direction of the connecting mechanism 30 according to the transmitted information, and control the connection method between the box body 10 and the door 20, which is conducive to timely detection of the fire information inside the box body 10 and timely feedback. While ensuring that the box body 10 can be ventilated during normal use, when a fire occurs inside the box body 10, the door 20 and the box body 10 are sealed and connected to reduce the entry of combustible gas, which is conducive to timely detection and control of the fire in the box body 10, thereby protecting electrical equipment.
[0026] The space enclosed between the box body 10 and the door 20 can be used to store electrical equipment, and the electrical equipment can be protected by installing it inside the box body 10. These devices usually contain a large number of electrical components and circuits, and overheating or short circuits may cause fires. Motors and generators may cause fires due to overheating or mechanical failures during operation.
[0027] It should be noted that the protection device 100 provided by the present invention can be applied to various electrical equipment and scenarios such as transformers, generators, motors, charging piles, data server centers, distribution boxes, distribution cabinets, industrial automation equipment, battery energy storage systems, etc.
[0028] In this disclosure, Figure 1As shown, the first side of the box body 10 may have an opening 11, and the first side may be any suitable side of the box body 10. A box door 20 is provided on one side of the opening 11 on the box body 10 to cover the opening 11, and the box door 20 is connected to the box body 10 to control the opening or closing of the opening 11. When the box door 20 is closed, the detection mechanism may control the activity of the connection mechanism 30, and further control the gap or sealed connection between the box door 20 and the box body 10 to meet different exhaust requirements of the box body 10.
[0029] In some other embodiments, a sealing gasket may be provided on the box door 20 , and when the box body 10 and the box door 20 are sealed and connected, the sealing gasket may be crimped between the box door 20 and the box body 10 to improve the sealing between the box door 20 and the box body 10 .
[0030] In this disclosure, Figure 1 As shown, a plurality of connection mechanisms 30 may be provided, and the box door 20 is connected to the box body 10 through the plurality of connection mechanisms 30, the connection mechanism 30 includes a movable portion 31 and a first connection portion 32, the movable portion 31 is connected to the first connection portion 32, the control unit is used to control at least part of the movable portion 31 to move in a direction close to or away from the opening 11, and the box door 20 is provided with a second connection portion 21, and the first connection portion 32 is connected to the second connection portion 21. In this way, it is convenient to form an exhaust gap 50 between the box body 10 and the box door 20, and the plurality of connection mechanisms 30 can ensure the movement stability of the box door 20.
[0031] For example, Figure 1 As shown, the box body 10 is square, and connection mechanisms 30 are provided at the four corners of the opening 11 of the box body 10 . The connection mechanisms 30 are connected to the four corners of the box door 20 , thereby ensuring the stability of the connection between the box door 20 and the box body 10 .
[0032] In the present disclosure, the second connecting portion 21 on the box door 20 is connected to the first connecting portion 32, that is, the box door 20 is connected to the connecting mechanism 30 through the second connecting portion 21, and the control unit is used to control at least part of the movable portion 31 to move in a direction close to or away from the opening 11, that is, the box door 20 can be controlled to move in a direction close to or away from the opening 11, thereby completing the formation of an exhaust gap 50 or a sealed connection between the box door 20 and the box body 10.
[0033] The present disclosure does not limit the connection method between the first connection part 32 and the second connection part 21 , and it can be a suitable method such as plug-in, snap-on, welding, etc.
[0034] In some other embodiments, the first connecting part 32 can be set as a sleeve rod, and the second connecting part 21 can be set as a sleeve. The sleeve and the sleeve rod are plug-in connected, and the sleeve and the sleeve rod can be relatively rotatably connected, which is beneficial to improve the mobility of the box door 20 when moving, and is beneficial to prevent the box door 20 from getting stuck due to failure of other structures of the connecting mechanism 30.
[0035] In this disclosure, Figure 2 and Figure 4 As shown, the movable part 31 may include a lead screw 311 and a slider 312, the slider 312 and the lead screw 311 are threadedly connected to form a lead screw nut mechanism, the slider 312 is connected to the first connecting part 32, the first side may be the front side of the box body 10, the box body 10 includes a side plate 12, an upper plate 13 and a bottom plate 14, a groove 131 is provided on the upper plate 13, the lead screw 311 is installed in the groove 131, and the lead screw 311 is configured to be able to rotate along the axis of the lead screw 311 itself, and the slider 312 moves along the axis direction of the lead screw 311. Such a configuration can facilitate the control of the movable part 31, thereby ensuring the stability of the movement of the movable part 31.
[0036] Among them, the lead screw 311 can be set as an electric lead screw 311, which can be easily operated.
[0037] In some other embodiments, the movable portion 31 may also be configured as a structure of a slide rail and a slider 312 , and the slider 312 may move on the slide groove.
[0038] In this disclosure, Figure 6 and Figure 7As shown, the groove 131 can be set as a through groove, and a seal 18 is set inside the groove 131. The seal 18 is connected to the slider 312 and the front side wall of the groove 131. The seal 18 is used to seal the groove 131 when the box door 20 is sealed and connected to the box body 10. The front side of the upper plate 13 is provided with an adapter 132 at a position corresponding to the second connecting portion 21. The outer contour of the adapter 132 is adapted to the outer contour of the second connecting portion 21 to achieve a tight connection between the adapter 132 and the second connecting portion 21. In this way, setting the groove 131 as a through groove can facilitate the sliding of the slider 312. In addition, since the groove 131 is set as a through groove, when there is an exhaust gap 50 between the box door 20 and the box body 10, the part of the slider 312 on the lead screw 311 is close to the front end of the groove 131, so there is a through groove at the rear end of the groove 131, which can be used for ventilation. At this time, the seal 18 is compressed between the slider 312 and the front end of the groove 131. When the box door 20 is sealed and connected to the box body 10, the part of the slider 312 on the screw 311 is close to the rear end of the groove 131, and the seal 18 is stretched at this time. The seal 18 can automatically cover the gap between the front end of the slider 312 on the groove 131 and the front end of the groove 131 when the slider 312 moves, thereby ensuring the sealing during the fire extinguishing process to reduce the combustible gas from entering the box body 10 at this time.
[0039] The front side wall of the groove 131 is the side wall close to the opening 11 of the box body 10 .
[0040] The seal 18 can be made of soft material and can be folded to facilitate stretching and compression. The thickness of the seal 18 is 3mm-6mm, which can facilitate installation and arrangement of the seal 18 while ensuring the sealing effect.
[0041] In this disclosure, Figures 1 to 4 As shown, an upper baffle 15 may be provided on the front side of the upper plate 13, a gap may be provided between the upper baffle 15 and the upper surface of the box door 20, and the upper baffle 15 is provided with a evacuation portion for evacuating the second connection portion 21, a lower baffle 16 is provided on the front side of the bottom plate 14, a gap may be provided between the lower baffle 16 and the lower surface of the box door 20, and the lower baffle 16 is provided with a evacuation portion for evacuating the second connection portion 21, and a plurality of baffles 17 are provided on the side plate 12, the baffles 17 are arranged at equal intervals along the height direction of the box body 10, and the size of the baffles 17 in the direction perpendicular to the box door 20 is not less than the size of the exhaust gap 50 in the direction perpendicular to the box door 20. In this way, the exhaust gap 50 between the box body 10 and the box door 20 can be partially shielded to reduce the entry of impurities.
[0042] The present invention provides a plurality of blocks 17, an upper baffle 15 and a lower baffle 16 at the exhaust gap 50 between the box body 10 and the door 20 for shielding, thereby ensuring ventilation and heat dissipation of the electrical equipment in the box body 10 and preventing foreign objects outside the box body from entering the box body 10.
[0043] Among them, the multiple blocks 17 can be constructed as protective teeth to block foreign objects while ensuring ventilation.
[0044] In some embodiments of the present disclosure, the upper plate 13 , the side plate 12 , the bottom plate 14 , the upper baffle plate 15 , the lower baffle plate 16 and the stopper 17 are designed as an integrated whole to ensure the sealing and strength of the box body 10 .
[0045] In this disclosure, Figure 8 and Fig. 9 As shown, the housing 10 may be provided with an exhaust pump 61 with adjustable exhaust power, one end of the exhaust pump 61 may be connected to the interior of the housing 10, and the other end of the exhaust pump 61 may be connected to an exhaust pipe 62, the exhaust pipe 62 is connected to the external atmosphere, a one-way valve is provided on the exhaust pipe 62, the one-way valve allows the gas to be discharged from the interior of the housing 10 into the atmosphere, the exhaust pump 61 is electrically connected to the control unit, and the control unit is used to control the start and stop of the exhaust pump 61, and adjust the exhaust power of the exhaust pump 61. In this way, the control unit can control the exhaust pump to extract the combustible gas from the housing 10, further reducing the occurrence of fire. In addition, the one-way valve provided in the exhaust pump 61 can prevent the outside air from entering the housing 10 from the exhaust pipe 62, thereby ensuring the one-way flow of the heat dissipation system.
[0046] The exhaust pump 61 may be disposed on the upper plate 13, which is beneficial to the smoothness of the exhaust.
[0047] In this disclosure, Fig. 9 As shown, a plurality of first air ducts 63 and at least one second air duct 64 can be arranged on the inner side wall of the box 10. The plurality of first air ducts 63 are laid on the inner side wall of the box 10 at equal distances along the height direction of the box 10 and are connected to the inside of the box 10. The second air duct 64 is connected to the first air duct 63 and is connected to the exhaust pump 61. The diameters of the exhaust pipe 62, the second air duct 64 and the first air duct 63 decrease in sequence. Such an arrangement can ensure the rapid discharge of gas, thereby quickly controlling the occurrence of fire. The second air duct 64 and the first air duct 63 can gather gas to prevent the gas inside the box 10 from running wildly.
[0048] In the present disclosure, the first air duct 63 is distributed on the inner side of the box body 10, and can directly absorb the heat of the electrical equipment. The second air duct 64 collects the heat absorbed in the first air duct 63 and transfers it to the exhaust pump 61, and finally discharges it out of the box body 10 through the exhaust pipe 62. The inner diameters of the exhaust pipe 62, the second air duct 64 and the first air duct 63 are reduced successively, which is conducive to forming an airflow pressure difference and improving the heat dissipation efficiency.
[0049] In this disclosure, Figure 8 As shown, the protection device 100 may further include a solar panel 70, which is disposed on the upper portion of the housing 10 and is electrically connected to the control unit for supplying power to the control unit. In this arrangement, the solar panel 70 may be directly used for power supply without the need to provide other energy sources.
[0050] In the present disclosure, the detection device 40 may include any detection instrument that needs to be detected, and the present disclosure does not limit this. For example, Figure 8 As shown, the detection device 40 includes a smoke alarm 41 and a humidity sensor 42, which are installed inside the box 10 and are electrically connected to the control unit. In this way, the fire inside the box 10 can be detected in time, so that the control unit can make feedback in time.
[0051] An anti-trigger mechanism may be provided in the control unit, and the anti-trigger mechanism is used to comprehensively determine the data information monitored in real time by the smoke alarm and the temperature and humidity sensor 42, and to determine the actual situation in the equipment box in combination with the working power of the exhaust pump 61.
[0052] The present disclosure can timely detect the fire or abnormal temperature and humidity conditions in the box 10 through real-time monitoring of the smoke alarm 41 and the temperature and humidity sensor 42. The anti-trigger mechanism in the control unit can comprehensively determine the monitoring data and accurately judge the actual situation in the box 10 in combination with the working power of the exhaust pump 61 to avoid false triggering or missed triggering. When a fire is detected, the control unit can quickly drive the screw rod to use the box door 20 to block the opening 11 of the box 10, while increasing the power of the exhaust pump 61 to accelerate the discharge of the combustion-supporting gas, thereby effectively curbing the spread of the fire.
[0053] It should be noted that after the circuit of the protection device 100 disclosed in the present invention is connected, the places where the circuit passes through the box 10 are sealed, including the use of sealant, sealing mud, sealing rings, etc., in order to ensure that the outside air enters the box 10 directly from the exhaust gap 50, thereby ensuring the reliability of the seal during the fire extinguishing process.
[0054] According to the second aspect of the present disclosure, Fig.10As shown, a protection method for electrical equipment is provided, the method is applied to a protection device 100 for electrical equipment, the protection device 100 also includes an exhaust pump 61, and the method includes the following steps: S100: When assembling the protection device 100, the control unit is used to drive the connection mechanism 30 to approach the first side, so that an exhaust gap 50 is formed between the first side of the box body 10 and the box door 20. At this time, the box door 20 is located at the first position; S200: When the control unit receives a signal from the detection device 40 indicating that a fire has occurred in the box 10, the control unit drives the connection mechanism 30 away from the first side so that the first side of the box 10 and the door 20 are close to each other to form a sealed connection. At this time, the door 20 is located in the second position. S300: The control unit controls the exhaust pump 61 to start, extract the gas inside the box 10 and discharge it outside the box 10. S400: When the control unit receives a signal from the detection device 40 indicating that the fire is extinguished, it drives the connection mechanism 30 and repeats step S100 to restore the position of the door 20 from the second position to the first position.
[0055] The fire information inside the box 10 can be detected by the detection device 40. The detection device 40 is electrically connected to the control unit and can transmit information to the control unit. The control unit can control the activity direction of the connection mechanism 30 according to the transmitted information, and control the connection mode between the box 10 and the door 20, which is conducive to timely detection of the fire information inside the box 10 and timely feedback. While ensuring that the box 10 can be ventilated during normal use, it can also make the box door 20 and the box 10 sealed when a fire occurs inside the box 10, reducing the entry of combustible gas, thereby facilitating timely detection and control of the fire inside the box 10, thereby protecting electrical equipment. Among them, when the door 20 is in the first position, there is an exhaust gap 50 between the box 10 and the door 20, so that the exhaust inside the box 10 is unobstructed. When the door 20 is in the second position, the box 10 and the door 20 are sealed to ensure the sealing inside the cell body, thereby preventing the occurrence of fire.
[0056] Specifically, when a fire occurs inside the protection device, the smoke alarm 41 and the temperature and humidity sensor 42 will feed back the real-time monitoring data to the control unit, and trigger the alarm system in the control unit, and control the system screw to rotate, so that the box door 20 moves toward the box body 10 until the box door 20 blocks the opening 11 of the box body 10. Then the control unit increases the working power of the exhaust pump 61 to accelerate the discharge of the combustion-supporting gas in the box body 10 to accelerate the extinguishing of the fire. The smoke alarm 41 and the temperature and humidity sensor 42 monitor the fire situation in the box body 10 in real time, and feed back to the control unit in real time. When the fire in the box body 10 is extinguished, step S100 is repeated, and step S100 is repeated to restore the position of the box door 20 from the second position to the first position.
[0057] In some other embodiments of the present disclosure, the control unit also includes an anti-trigger mechanism and an emergency call system. The anti-trigger mechanism can include two major mechanisms: judgment and prediction: when the smoke alarm 41 and the temperature and humidity sensor 42 detect an abnormality at the same time, or the smoke alarm 41 detects an abnormality significantly higher than the normal value alone and the temperature and humidity sensor 42 has no abnormality, or the temperature and humidity sensor 42 detects an abnormality and the smoke alarm 41 does not respond but the prediction mechanism determines that the current exhaust pump 61 power cannot restore the abnormality, the control unit will start; on the contrary, if the prediction mechanism believes that the abnormality detected by the temperature and humidity sensor 42 can be restored under the current exhaust pump 61 power, the control unit remains in an inactive state. When the control unit receives abnormal alarms from the smoke alarm 41 and the temperature and humidity sensor 42, the emergency call system can send a call signal to the management personnel as soon as possible and send a danger signal to prevent people around from approaching.
[0058] For example, the response time of the smoke alarm 41 is set to ≤5 seconds, the accuracy of the temperature and humidity sensor 42 is: temperature accuracy ±0.5℃, humidity accuracy ±3%RH, and response time ≤10 seconds. The sealing time of the door 20 to block the opening 11 is ≤3 seconds. The working power of the exhaust pump 61 is set to be adjustable, the exhaust volume at maximum power is ≥100m³ / h, and the response time is ≤2 seconds. The gas one-way valve has high-efficiency sealing performance, which can prevent the entry of external air, and the leakage rate is ≤0.1%. After the fire is extinguished, the control unit automatically restores the door 20 to the first position, and the recovery time is ≤10 seconds.
[0059] The specific actions of the protection equipment are: real-time monitoring by the smoke alarm 41 and the temperature and humidity sensor 42: the smoke alarm 41 is used to monitor the smoke situation in the equipment box in real time. Once the transformer overheats and produces smoke, the smoke alarm 41 will immediately detect and send an alarm signal. At the same time, the temperature and humidity sensor 42 will also monitor the temperature and humidity changes in the equipment box in real time, and will also send an alarm signal when the temperature rises abnormally.
[0060] The control unit receives the signal and makes a determination: After receiving the alarm signal sent by the smoke alarm 41 and the temperature and humidity sensor 42, the control unit will immediately make a determination. If it is determined that a fire has occurred, the control unit will immediately start the emergency treatment procedure.
[0061] Driving the screw rod: The control unit drives the screw rod to drive the slider 312 to move, so that the box door 20 moves toward the opening 11 until the box door 20 is tightly attached to the side of the opening 11 of the box body 10, thereby completing the blocking of the opening 11.
[0062] At the same time, since the seal 18 is connected between the front end of the slider 312 and the front end of the groove 131, when the slider 312 moves, the seal 18 will expand and fill the gap between the slider 312 and the groove 131 to ensure the sealing inside the box body 10. At the same time, the sealing gasket provided on the box door 20 will also play a further sealing role.
[0063] When the door 20 is at the second position, the control unit increases the working power of the exhaust pump 61, so that the exhaust pump 61 quickly discharges the heat absorbed by the first air pipes 63 and the combustion-supporting gas in the box body 10 through the second air pipe 64. Since the inner diameters of the exhaust pipe 62, the second air pipe 64 and the first air pipe 63 are reduced in sequence, an air flow pressure difference is formed, thereby improving the heat dissipation and exhaust efficiency.
[0064] A one-way valve is provided in the exhaust pump 61 to prevent outside air from entering the equipment box from the exhaust pipe 62. The combustion-supporting gas in the box body 10 is quickly exhausted, and outside air cannot enter, thereby accelerating the extinguishing of the fire.
[0065] During the fire extinguishing process, the smoke alarm 41 and the temperature and humidity sensor 42 will continue to monitor the fire situation in the box 10 and feed back the data to the control unit in real time.
[0066] After the fire is extinguished, the control unit receives normal signals from the smoke alarm 41 and the temperature and humidity sensor 42. At this time, the control unit repeats the previous steps to restore the position of the door 20 from the second position to the second position, that is, restores the normal use state of the box body 10.
[0067] The preferred embodiments of the present disclosure are described in detail above in conjunction with the accompanying drawings; however, the present disclosure is not limited to the specific details in the above embodiments. Within the technical concept of the present disclosure, a variety of simple modifications can be made to the technical solution of the present disclosure, and these simple modifications all fall within the protection scope of the present disclosure.
[0068] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction, and the present disclosure will not further explain various possible combinations.
[0069] In addition, various embodiments of the present disclosure may be arbitrarily combined, and as long as they do not violate the concept of the present disclosure, they should also be regarded as the contents disclosed by the present disclosure.
Claims
1. A protective device for electrical equipment, characterized in that: It includes a box body, a box door, a connecting mechanism, a control unit and a detection device; The interior of the box is suitable for storing electrical equipment, the first side of the box has an opening, the box door is connected to the first side of the box through a connecting mechanism, and the projection of the opening on the plane where the box door is located is located on the box door; The detection device is installed inside the box and is used to detect fire information of the box. The detection device is electrically connected to the control unit; One end of the connecting mechanism is connected to the box body, and the other end is connected to the box door; The control unit is electrically connected to the connecting mechanism, and is used to control the connecting mechanism to drive the box door to move, so that an exhaust gap is formed between the box door and the box body, or so that the box door and the box body are sealed and connected.
2. The protection device for electrical equipment according to claim 1, characterized in that: The connecting mechanism is provided in plurality, and the box door is connected to the box body through the plurality of connecting mechanisms; The connecting mechanism comprises a movable portion and a first connecting portion, the movable portion is connected to the first connecting portion, and the control unit is used to control at least a portion of the movable portion to move in a direction close to or away from the opening; The box door is provided with a second connecting portion, and the first connecting portion is connected to the second connecting portion.
3. The protection device for electrical equipment according to claim 2, characterized in that: The movable part includes a lead screw and a slider, the slider is threadedly connected to the lead screw to form a lead screw nut mechanism, and the slider is connected to the first connecting part; The first side is the front side of the box body, and the box body includes a side plate, an upper plate and a bottom plate. The upper plate is provided with a groove, and the lead screw is installed in the groove. The lead screw is configured to be able to rotate along the axis of the lead screw itself, and the slider moves along the axial direction of the lead screw.
4. The protection device for electrical equipment according to claim 3, characterized in that: The groove is configured as a through groove, a sealing member is disposed inside the groove, and the sealing member is connected to the slider and the front side wall of the groove; The sealing member is used to seal the groove when the box door is sealed and connected to the box body; An adapting portion is provided at a position corresponding to the second connecting portion on the front side of the upper plate and the bottom plate, and an outer contour of the adapting portion is adapted to an outer contour of the second connecting portion to achieve a tight connection between the adapting portion and the second connecting portion.
5. The protection device for electrical equipment according to claim 3, characterized in that: An upper baffle is provided on the front side of the upper plate, a gap is formed between the upper baffle and the upper surface of the box door, and the upper baffle is provided with an avoidance portion for avoiding the second connecting portion; A lower baffle is provided on the front side of the bottom plate, a gap is formed between the lower baffle and the lower surface of the box door, and the lower baffle is provided with an avoidance portion for avoiding the second connecting portion; A plurality of blocks are provided on the side plate, and the blocks are arranged at equal intervals along the height direction of the box body, and the size of the blocks along the direction perpendicular to the box door is not less than the size of the exhaust gap along the direction perpendicular to the box door.
6. The protection device for electrical equipment according to claim 1, characterized in that: The box body is provided with an exhaust pump with adjustable exhaust power, one end of the exhaust pump is connected to the interior of the box body, and the other end of the exhaust pump is connected to an exhaust pipe, and the exhaust pipe is connected to the external atmosphere; The exhaust pipe is provided with a one-way valve, which allows the gas to be discharged from the inside of the box into the atmosphere; The exhaust pump is electrically connected to the control unit, and the control unit is used to control the start and stop of the exhaust pump and adjust the exhaust power of the exhaust pump.
7. The protection device for electrical equipment according to claim 6, characterized in that: A plurality of first air guide pipes and at least one second air guide pipe are arranged on the inner side wall of the box body; The plurality of first air guide pipes are laid on the inner wall of the box at equal intervals along the height direction of the box and are connected to the interior of the box; The second air duct is in communication with the first air duct and is in communication with the exhaust pump; Wherein, the diameter of the exhaust pipe, the diameter of the second air duct and the diameter of the first air duct decrease in sequence.
8. The protection device for electrical equipment according to any one of claims 1 to 7, characterized in that: The protection device also includes a solar panel, which is arranged on the upper part of the box and is electrically connected to the control unit for supplying power to the control unit.
9. The protection device for electrical equipment according to any one of claims 1 to 7, characterized in that: The detection device includes a smoke alarm and a humidity sensor; The smoke alarm and the humidity sensor are installed on the inner side of the box and are electrically connected to the control unit.
10. A protection method for electrical equipment, characterized in that: The method is applied to the protection device for electrical equipment according to any one of claims 1 to 9, wherein the protection device further comprises an exhaust pump, and the method comprises: When assembling the protection device, the control unit is used to drive the connection mechanism to approach the first side, so that there is an exhaust gap between the first side of the box body and the box door. At this time, the box door is located at the first position; When the control unit receives a signal from the detection device indicating that a fire has occurred in the box, the control unit drives the connection mechanism away from the first side so that the first side of the box and the door are close to each other to form a sealed connection, and the door is located at the second position; The control unit controls the exhaust pump to start, extracts the gas inside the box body and discharges it outside the box body; When the control unit receives a signal from the detection device indicating that the fire has been extinguished, it drives the connection mechanism to restore the position of the door from the second position to the first position.