An electrical automation detection device for power distribution automation equipment

Abstract

The application relates to the field of automatic detection, in particular to an electrical automation detection device for power distribution automation equipment. The device is improved in many aspects in view of the problems of poor stability, dust influence, heat dissipation, fire prevention and the like of the existing detection device. The device comprises a power distribution box, a moving support at the top, an automatic cooling mechanism, an automatic dust cleaning mechanism, a temperature sensor and an automatic fire extinguishing device and the like. The moving support can reciprocate and switch the dust cleaning and detection modes; the automatic cooling mechanism is provided with multiple fans for heat dissipation; the automatic dust cleaning mechanism can clean dust and collect the dust; and the temperature sensor can monitor electrical parameters and give an alarm. The device realizes multifunctional integration, effectively improves the detection and operation and maintenance efficiency, guarantees the stable operation of the equipment, reduces the fire risk and the like, and has a good application prospect.

Description

Technical Field

[0001] This invention relates to the field of automatic detection, and more specifically to an electrical automation detection device for power distribution automation equipment. Background Technology

[0002] To ensure the normal and stable operation of electrical automation equipment, power distribution equipment must be installed on its power supply lines. Power distribution equipment is part of the power system and is a general term for equipment such as high-voltage distribution cabinets, generators, transformers, power lines, circuit breakers, low-voltage switchgear, distribution panels, switch boxes, and control boxes.

[0003] Existing electrical automation testing devices for power distribution automation equipment have several problems. Regarding mobility, most devices are equipped with mobile devices, which leads to poor stability. Even those with stabilizing devices often rely on screws to move the base plate to the ground, a method that is not only unstable but also cumbersome to operate. In terms of protection, the devices are prone to collisions with other objects during movement, causing damage to internal electrical equipment. Regarding heat dissipation, the devices generate a large amount of heat during operation, primarily dissipated through a rear heat sink. Over time, the heat dissipation vents become clogged with dust. If the heat sink is difficult to remove, the heat dissipation effect is significantly reduced, potentially leading to fire. Since most power distribution equipment is unattended, a fire often results in irreparable damage. Furthermore, if the power distribution equipment accumulates a large amount of dust, it must be cleaned before testing; otherwise, the test results will be affected. Excessive dust can also hinder heat dissipation from components, leading to poor contact and ultimately affecting the normal operation of the power distribution equipment. Summary of the Invention

[0004] The purpose of this invention is to overcome the problems of poor stability and inconvenience in detection and operation caused by dust in existing electrical automation detection devices for power distribution automation equipment.

[0005] To achieve the above objectives, the technical approach adopted by the present invention to solve its technical problems is as follows: The electrical automation detection device for power distribution automation equipment of the present invention is mainly designed around improving stability, enhancing protection, optimizing heat dissipation and dust removal functions, and realizing automatic detection, alarm and fire extinguishing.

[0006] Firstly, in terms of stability, it abandons the traditional design of mobile and stabilizing equipment that is prone to poor stability and cumbersome operation. Instead, it combines the detection device and the distribution box in a design that is more compact than the traditional distributed design. This compact layout prevents the distribution box from expanding excessively due to the increase in functions, making it more advantageous for installing and using the device in places with limited space (such as small distribution rooms or compact electrical control cabinets).

[0007] In terms of heat dissipation, an innovative automatic cooling mechanism has been designed. This mechanism consists of multiple fans, including a first fan located on the side of the distribution box, a second fan that works in conjunction with a transmission component, and a third fan connected via belt drive. The drive unit rotates the relevant lead screws and worm gears, thereby simultaneously driving these fans to operate, forming a multi-directional airflow for heat dissipation. This effectively improves heat dissipation efficiency and avoids the problem of poor heat dissipation caused by dust clogging the ventilation holes, which is common with traditional methods that rely solely on the rear heat sink.

[0008] In terms of dust removal, an automatic dust removal mechanism is installed. A dust removal brush is located on one side of the movable bracket at the top of the distribution box, and a rotating component is located behind the brush. A drive unit moves a slider in a reciprocating motion, allowing the dust removal brush to thoroughly clean the electrical components and heat dissipation holes inside the distribution box, preventing dust accumulation from affecting test results, component heat dissipation, and normal operation. Simultaneously, a collection mechanism is installed at the bottom of the distribution box. A motor drives a scraper plate on a third lead screw to reciprocate, collecting the dust that falls during the dust removal process and keeping the inside of the distribution box clean.

[0009] The automatic detection function is achieved through a movable bracket, which includes a drive unit, a first lead screw, a worm gear, a second lead screw, and a slider mounted on the lead screw. A telescopic rod and a detection table are rotatably mounted on the slider, which can perform detection operations on electrical components in different locations within the distribution box.

[0010] In addition, to address fire risks, an automatic fire extinguishing system is installed on top of the distribution box. This system consists of a fire extinguisher, a thermomagnetic valve, and a fusible fuse. When the temperature inside the distribution box becomes too high, the fusible fuse melts, and the wheel-shaped magnetic valve in the thermomagnetic valve rotates due to the change in magnetic field between itself and a strong magnet, thus opening the fire extinguisher and achieving automatic fire extinguishing, reducing damage from a fire. Furthermore, an automatic alarm system is also provided, which promptly issues alarm signals via a buzzer and signal transmitter to notify relevant personnel.

[0011] To achieve the above objectives, the technical solution adopted by the present invention to solve its technical problem is as follows: Design an electrical automation detection device for power distribution automation equipment. The specific solution is as follows: An electrical automation testing device for power distribution automation equipment includes a movable support on the top of a distribution box and a drive unit on one side of the distribution box. The movable support reciprocates under the drive unit. A rotating telescopic component and a testing platform are provided at the bottom of the movable support. A testing device is provided on one side of the testing platform, and a dust cleaning brush is provided on the other side. The dust cleaning mode and the testing mode are switched by rotation.

[0012] Furthermore, the movable support includes a first lead screw mounted on the drive unit, a worm gear perpendicular to and meshing with the first lead screw, and a second lead screw parallel to the first lead screw and meshing with the worm gear. The drive unit drives the first lead screw, the worm gear, and the second lead screw to rotate simultaneously. Both the first lead screw and the second lead screw are equipped with sliders.

[0013] Furthermore, the first lead screw is also equipped with helical teeth.

[0014] Furthermore, the rotating telescopic component includes a rotary table fixed to the bottom of the slider and an electric push rod fixedly connected to the detection table at the bottom of the rotary table.

[0015] Furthermore, the distribution box is equipped with an automatic detection device, including a detection device installed on a detection platform and an alarm and signal transmitting device installed on the outside of the distribution box.

[0016] Furthermore, the distribution box is also equipped with an automatic cooling mechanism, including a first fan located on the side of the distribution box and meshing with a helical gear, a second fan located below the worm and cooperating with it, and a third fan connected to the second fan via belt drive; the drive unit drives the worm and the first lead screw to rotate, thereby driving the first fan, the second fan and the third fan to rotate simultaneously.

[0017] Furthermore, the bottom of the distribution box is also equipped with a collection mechanism, including a motor located on one side of the distribution box, a third lead screw located on the motor, and a scraper plate located on the third lead screw. The motor drives the scraper plate to reciprocate.

[0018] Furthermore, the top of the distribution box is equipped with an automatic fire extinguishing device, including a fire extinguisher, a thermomagnetic valve located at the front end of the fire extinguisher, and a fusible safety bolt.

[0019] Furthermore, the thermomagnetic valve includes a wheel-shaped magnet valve and a strong magnet disposed on one side of the wheel-shaped magnet valve; when the thermomagnetic valve is burned, the fusible safety plug melts, the magnetic field between the wheel-shaped magnet valve and the strong magnet changes, the wheel-shaped magnet valve rotates, and the fire extinguisher opens.

[0020] Furthermore, the cleaning brush is equipped with a rotating component, which is mounted on the testing platform.

[0021] The beneficial effects of this invention are: This device integrates multiple functions such as detection, dust removal, heat dissipation, fire extinguishing, and alarm into the distribution box. The mobile support can move flexibly and use rotating telescopic parts for precise positioning and detection. The detection device can monitor and automatically alarm and remotely transmit signals when abnormalities occur. The dust removal brush can switch modes to clean electrical components and heat dissipation holes, and the collection mechanism collects dust, effectively solving the problems of limited functionality and inconvenient detection and maintenance of existing detection devices, ensuring the efficient and stable operation of the distribution box.

[0022] The automatic cooling mechanism is designed so that the first, second, and third fans operate in tandem under the drive unit, forming a multi-directional airflow circulation, which greatly improves heat dissipation efficiency and avoids heat dissipation failure caused by dust accumulation on traditional heat sinks. The cleaning brush uses rotating parts for cleaning, and works in conjunction with the collection mechanism to prevent dust accumulation from affecting heat dissipation and electrical performance, reduce potential failures caused by overheating and dust, extend the service life of electrical components, and ensure that the distribution box operates in a good environment.

[0023] The automatic fire extinguishing system utilizes the principle of thermomagnetism. When the distribution box temperature becomes too high, the fuse melts, and the wheel-shaped magnetic valve, combined with the magnetic field of a strong magnet, activates the fire extinguishing tank to automatically extinguish the fire. The observation window on the box door and the shielding plate connected by a low-melting-point alloy facilitate observation of the internal situation during abnormal temperatures while preventing the risk of electric shock. It is linked to an automatic alarm system to promptly notify personnel, effectively reducing fire losses and the risk of equipment failure, providing reliable safety protection for power distribution equipment, and is especially suitable for unattended scenarios. Attached Figure Description

[0024] Figure 1 This is a frontal structural diagram of the present invention; Figure 2 This is a rear view structural schematic diagram of the present invention; Figure 3 A top view of the movable support and cooling device; Figure 4 for Figure 3 Enlarged view of section A; Figure 5 A side view of the movable support and cooling device; Figure 6 for Figure 5 Enlarged view of section B; Figure 7 This is a schematic diagram of the structure viewed from the front of the inspection section; Figure 8 This is a schematic diagram of the structure from the side view of the inspection section; Figure 9 This is a schematic diagram of an automatic fire extinguishing device; Figure 10 for Figure 9 Enlarged view of section C; Figure 11 A perspective view of an automatic fire extinguishing system. Figure 12 for Figure 11 Enlarged view of section D; Figure 13 To collect schematic diagrams of the mechanism structure; Figure 14 for Figure 13 Enlarged view of part E in the middle; Figure 15This is a model diagram of the present invention; Figure 16 This is a model diagram of the internal structure after the box body has been removed; The above figures include the following reference numerals: 10. Distribution box; 11. Box body; 12. Box door; 121. Observation window; 122. Shielding plate; 123. Connecting thread; 13. Heat dissipation hole; 14. Ventilation opening; 20. Automatic fire extinguishing device; 21. Fire extinguishing tank; 211. Valve seat; 212. Nozzle; 22. Thermomagnetic valve; 221. Wheel-shaped magnetic valve; 2210. Induction plate; 2211. Rotating shaft; 2212. Valve; 222. Strong magnet; 23. Safety bolt; 24. Fixing ring; 30. Moving bracket; 31. Drive unit; 32. First lead screw; 321. First gear; 323. Helical gear; 324. First guide rod; 33. Worm gear; 34. Second lead screw; 341. Second gear; 342. Second guide rod 35. Slider; 351. First slider; 352. Second slider; 353. Threaded through hole; 354. Smooth through hole; 355. Rotary telescopic component; 3551. Rotary table; 3552. Electric actuator; 356. Detection table; 40. Automatic cooling mechanism; 41. First fan; 411. First fan gear; 42. Second fan; 421. Second fan gear; 422. First pulley; 43. Third fan; 431. Second pulley; 50. Dust cleaning brush; 51. Rotating component; 61. Temperature sensor; 62. Alarm; 63. Signal transmitting device; 70. Collection mechanism; 71. Motor; 72. Third lead screw; 73. Dust scraper; 74. Dust collection trough; 76. Dust collection box. Detailed Implementation

[0025] The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments, and not all embodiments.

[0026] In the description of this invention, it should be understood that the terms "front", "rear", "left", "right", "upper", "lower", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0027] refer to Figure 1-16 The present invention provides an electrical automation testing device for electrical automation equipment, including a distribution box 10, an automatic cooling mechanism 40, a movable support 30, a temperature sensor 61, a collection mechanism 70, and an automatic fire extinguishing device 20.

[0028] In practice, the distribution box 10 is a common building-specific distribution box, including a box body 11, a door 12, and heat dissipation holes 13 and ventilation openings 14 located on the rear side of the box body 11. The door 12 has an observation window 121 and a shield 122 that completely covers the observation window 121. The top of the shield 122 is fixed to a connecting wire 123, and the other end of the connecting wire 123 is fixed above the observation window 121. The connecting wire 123 is made of a low-melting-point alloy. When the temperature inside the distribution box 10 rises abnormally, the connecting wire 123 melts and the shield 122 falls off, making it convenient for inspection personnel to observe the inside of the distribution box 10 through the observation window 121, thus avoiding the risk of electric shock due to a lack of understanding of the internal conditions of the distribution box 10.

[0029] A movable bracket 30 is installed on the top of the distribution box 10. The drive unit 31 of the movable bracket 30 is located on the side of the box 11 near the top and is driven by a motor. The output shaft of the drive unit 31 is connected to a first lead screw 32 via a coupling. The first lead screw 32 is a slender cylinder with uniform threads machined on its surface, horizontally spanning the top of the box 11 and parallel to its long side. When the drive unit 31 operates, it drives the first lead screw 32 to rotate. A first gear 321 is provided at the other end of the first lead screw 32. This first gear 321 meshes with the helical teeth at one end of a worm gear 33. Simultaneously, a helical tooth 323 is also provided near the first gear 321. This helical tooth 323 has a spiral-shaped protrusion and meshes with a first fan gear 411 mounted on a first fan 41, thereby driving the first fan 41 to rotate during the rotation of the first lead screw 32.

[0030] Both ends of the worm gear 33 are provided with helical teeth, the axis of which is parallel to the short side of the housing 11 and perpendicular to the first lead screw 32. One end of the worm gear 33 is rotatably connected to the side of the housing 11 where the first fan 41 is mounted via a bearing seat, and the other end is fixed to the adjacent side of the housing 11 via a bearing seat. At the other end of the worm gear 33, its helical teeth mesh with the second gear 341, and the second lead screw 34 is fixed on the second gear 341. The second lead screw 34 has the same structure as the first lead screw 32 and is parallel to each other, and its other end is rotatably connected to the side of the housing 11 where the drive unit 31 is located via a bearing seat.

[0031] On one side of the first lead screw 32, a first guide rod 324 parallel to it is also installed. One end of the first guide rod 324 is fixedly connected to the housing 11, and the other end is fixedly connected to the fixing block 3221 set on the top of the housing 11. Its shape is the same as that of the first lead screw 32, but its surface is smooth and without threads. Similarly, a second guide rod 342 is provided on one side of the second lead screw 34. The structure of the second guide rod 342 is the same as that of the first guide rod 324. One end of its structure is fixedly connected to the housing 11, and the other end is fixedly connected to the fixing block 3421 set on the top of the housing 11.

[0032] The slider 35 is divided into two parts: a first slider 351 mounted on the first lead screw 32 and the first guide rod 324, and a second slider 352 mounted on the second lead screw 34 and the second guide rod 342. A threaded through hole 353 and a smooth through hole 354 are provided at the bottom of the slider 35, and the two are parallel to each other. The threaded through hole 353 engages with the lead screw, while the smooth through hole 354 engages with the guide rod. When the lead screw rotates, the threads on the lead screw cause the slider 35 to rotate; however, due to the limiting effect of the guide rod, the slider 35 can only slide horizontally. At this time, the motor of the drive unit 31 performs forward and reverse operations, which enables the slider 35 to achieve reciprocating motion of left and right translation.

[0033] The bottom of the slider 35 is equipped with a rotary table 3551, which is a WS130CR model large hollow series heavy-duty arbitrary indexing rotary table, a mature existing technology product. At the axis of the rotary table 3551, an electric actuator 3552 is connected via a fixed snap-fit ​​connection. This electric actuator 3552 is an HDJ electric actuator, also a commercially available technology product. A detection platform 356, shaped like a rectangular metal plate, is fixed to the bottom of the electric actuator 3552. The rotary table 3551 at the bottom of the slider 35 can rotate at any angle as needed during the detection process to adjust the orientation of the detection platform 356. The electric actuator 3552 allows for vertical adjustment of the detection platform 356. By controlling the extension and retraction of the electric actuator 3552, the detection platform 356 can be moved closer to or further away from the component or area being tested inside the distribution box 10, meeting the detection requirements at different heights.

[0034] In operation, when the first lead screw 32 and the second lead screw 34 rotate, the slider 35 mounted on them reciprocates along the lead screws. An electric actuator 3552 is rotatably mounted on the slider 35. In the initial state, the electric actuator 3552 is in a retracted state to reduce space occupation. When the slider 35 moves to the position of the electrical component to be tested, the electric actuator 3552 extends downwards, and the detection platform 352 at its bottom contacts the electrical component for testing. Example 1

[0035] An alarm 62 and a signal transmitter 63 are also installed on the outside of the distribution box 10, both of which are electrically connected to the temperature sensor 61. When the temperature sensor 61 on the detection platform 356 detects the outer surface of the electrical components inside the distribution box 10, if the detected parameters exceed the preset normal range during the detection process, the temperature sensor 61 will transmit an abnormal signal to the alarm 62 and the signal transmitter 63. The alarm 62 will immediately sound an alarm to alert surrounding personnel; the signal transmitter 63 can then send the abnormal information to the remote monitoring center or the mobile devices of relevant personnel so that timely measures can be taken to handle the fault. The above alarm and signal transmitter devices are all existing technologies, using the same technology as the IoT-based smart home security alarm system with patent number CN105243880A. After the detection is completed, the electric push rod 3552 retracts, and the slider 35 continues to move to the next detection position, sequentially performing a comprehensive detection of each electrical component inside the distribution box 10 to ensure that the normal operating status of the distribution box 10 can be monitored and maintained in real time. Example 2

[0036] The automatic cooling mechanism 40 includes three fans mounted on the housing 11. Each fan employs a multi-blade design, with blades made of lightweight engineering plastics possessing sufficient strength and heat resistance, such as polycarbonate (PC) or nylon (PA). The first fan 41 is located on the rear side of the housing 11, engaging with a vent 13 on the rear side. Its central axis is perpendicular to this side and is fixed to the housing 11 via a housing. The first fan gear 411 on its central axis meshes tightly with the helical teeth 323 on the first lead screw 32. The number of teeth and module of the fan gear 411 are designed and calculated based on the thread parameters of the first lead screw 32 and the required fan speed, ensuring that the first fan 41 can be stably driven to rotate at a suitable speed when the first lead screw 32 rotates.

[0037] The second fan 42 is located below the worm gear 33 and is fixed to the housing 11 via the outer casing. A second fan gear 421 is also mounted on its central shaft. The second fan gear 421 meshes with the second gear 341 on the same helical tooth of the worm gear 33. Rotation of the worm gear 33 drives the second fan gear 421 to rotate, which in turn drives the second fan 42 to rotate. A first pulley 422 is provided between the second fan gear 421 and the second fan 42.

[0038] The third fan 43 is located below the second fan 42 and is fixed to the housing 11 via its outer casing. A second pulley 431 is mounted on its central shaft, and a belt 44 is fitted onto the pulleys of the second fan 42 and the third fan 43, connecting them via the belt 44. When the drive unit 31 drives the worm gear 33 and the first lead screw 32 to rotate, the first fan 41, the second fan 42, and the third fan 43 can rotate simultaneously, forming a multi-directional airflow circulation within the distribution box 10, effectively removing heat. This multi-fan collaborative cooling method significantly improves heat dissipation efficiency compared to traditional single-plate cooling. Example 3

[0039] Both testing platforms 356 are equipped with cleaning brushes 50. The cleaning brush 50 near the rear side of the enclosure 11 is used to clean the heat dissipation holes 13, while the cleaning brush 50 near the enclosure door 12 is used to clean the outer surfaces of electrical components inside the distribution box 10. The brushes are generally elongated or circular, with their heads composed of multiple bundles of bristles. The bristles are made of soft, elastic, and wear-resistant materials, such as nylon or polyester fibers. The length of the bristles depends on the internal space of the distribution box 10 and the depth of the area to be cleaned, generally between 5 and 15 centimeters. The width of the brush head is adapted to the internal width of the distribution box 10, but smaller than the internal lateral dimension of the distribution box 10, to allow for smooth movement within the box. A rotating component 51 is connected to the rear side of the brush head. The rotating component 51 can be a connecting block with a rotating shaft. The rotating shaft is connected to a corresponding mounting seat on the detection table 356 via a bearing, allowing the cleaning brush 50 to rotate and adjust around the rotating shaft at a certain angle to adapt to cleaning surfaces of different directions and shapes. The rotating component 51 is specifically a detachable cleaning brush with patent number 201720183308. Example 4

[0040] The thermomagnetic valve 22 is installed at the front end of the fire extinguishing canister 21. The wheel-shaped magnetic valve 221 is located within the extinguishing agent channel inside the valve seat 211. Its top sensing disc 2210 is made of ferromagnetic nickel wire. A hollow rotating shaft 2211 is vertically fixed to the center of the sensing disc 2210. This rotating shaft 2211 is located within the top interface of the valve seat 211. The overlapping hollow portion of the two has corresponding through holes 25 on its side. A slender, strip-shaped fusible safety plug 23 is inserted into the through hole 25. This safety plug 23 is made of a low-melting-point alloy (such as bismuth-tin alloy) and can effectively prevent accidental discharge under normal conditions. A disc-shaped valve 2212 is fixed to the end of the rotating shaft 2211, which fits tightly with the internal cavity of the valve seat 211. A soft and elastic high-temperature resistant rubber sealing ring is inlaid around the edge of the valve 2212, allowing the rotating shaft 2211 to stably drive the valve 2212 to rotate synchronously. A strong magnet 222 is fixed in the shape of a cuboid block at the top of the housing 11 at a position corresponding to the wheel-shaped magnet valve 221. It is made of neodymium iron boron permanent magnet material and has strong magnetism, thus forming an effective magnetic field coupling with the wheel-shaped magnet valve 221 in spatial position.

[0041] The principle of this thermomagnetic induction structure is based on the characteristic that the magnetism of nickel, as a ferromagnetic material, is significantly affected by temperature. The relevant principle is based on a paper titled "The Fabrication and Application Prospects of a Thermomagnetic Wheel Engine" published in the *Journal of Beijing Industrial Vocational and Technical College*. At room temperature, nickel wire has a certain degree of magnetism. When heated by an open flame, the temperature rises sharply, intensifying the thermal motion of the internal atoms. The originally ordered magnetic domain structure is disturbed, and the magnetism weakens. The Curie temperature of pure nickel is approximately 358℃, while the temperature of an open flame is usually far higher than this value, causing a significant change in the magnetism of the nickel wire. A strong magnet has a fixed magnetic field. When not exposed to an open flame, the wheel-shaped magnet valve is in a stable magnetic field environment and is kept stationary by a safety bolt. After the nickel wire induction disc is heated by an open flame, causing its magnetism to weaken, the magnetic field coupling state between the wheel-shaped magnet valve and the strong magnet is broken. The magnetic field strength and direction change, causing the direction of the resultant magnetic force on the wheel-shaped magnet valve to change. The originally balanced magnetic force becomes unbalanced, generating a torque that causes the wheel-shaped magnet valve to rotate.

[0042] When the temperature inside the distribution box 10 rises to a dangerous level, the safety bolt 23 melts due to heat, and the end of it that is engaged with the rotating shaft 2211 and the valve seat 211 loses its restriction on the rotation of the rotating shaft 2211 relative to the valve seat 211. At this time, the wheel-shaped magnet valve 221 begins to rotate around its axis under the influence of changes in the surrounding magnetic field or other factors, which in turn drives the valve 2212 to rotate synchronously through the rotating shaft 2211, opening the outlet of the fire extinguishing canister 21, allowing the extinguishing agent to be sprayed from the fire extinguishing canister 21 through the valve seat 211 and the nozzle 212, thus achieving the fire extinguishing function. Example 5

[0043] The bottom of the distribution box 10 is equipped with a collection mechanism 70, the main function of which is to collect the dust that falls during the dust removal process, maintain a clean environment inside the distribution box, and facilitate the normal operation and maintenance of electrical equipment.

[0044] The collection mechanism 70 includes a motor 71 located on one side of the bottom of the distribution box 10. A third lead screw 72 is connected to the motor 71, and the third lead screw 72 is connected to the output shaft of the motor 71. When the motor 71 rotates forward and reverse, it can drive the third lead screw 72 to rotate in both directions. A scraper 73 is provided on the third lead screw 72. The scraper 73 cooperates with the third lead screw 72. When the third lead screw 72 rotates, the scraper 73 will reciprocate along the third lead screw 72 under the action of its thread.

[0045] At the bottom of the housing 11, corresponding to the two ends of the third lead screw 72, there are rectangular openings with a length equal to that of the scraper blade 73. A dust collection trough 74 is fixed below the rectangular opening, and the width of the dust collection trough 74 is greater than the width of the rectangular opening. A dust collection box 76 is embedded inside the dust collection trough 74, and the top of the dust collection box 76 is hollowed out to allow scraped dust to fall into it. During dust removal, when the scraper blade 73 moves above the dust collection box 76 under the drive of the third lead screw 72, the dust scraped off during the dust removal process will fall smoothly into the dust collection box 76 under gravity, thus achieving effective collection and temporary storage of dust. This facilitates the periodic removal and emptying of the dust collection box 76, maintaining a clean environment inside the distribution box, reducing the risk of electrical faults caused by dust accumulation, and ensuring the stable operation of the distribution box.

[0046] Working Principle: In the temperature detection stage, at the initial startup of the device, the temperature sensor 61 faces the interior of the distribution box 10, constantly monitoring the internal temperature. Once the temperature sensor 61 detects an abnormal temperature data, it immediately sends a signal to the drive unit 31. Upon receiving the signal, the drive unit 31 begins operation, driving the first lead screw 32 to rotate. The rotation of the first lead screw 32 causes the worm gear 33 to rotate, thereby driving the second lead screw 34 to rotate. Both the first lead screw 32 and the second lead screw 34 are threaded, and during their rotation, they respectively drive the slider 35 on them to perform lateral reciprocating motion. When the slider 35 moves laterally to a specific position, the electric push rod 3552 below it extends downward, bringing the temperature sensor 61 closer to different parts inside the distribution box 10 for accurate local temperature detection. The detected detailed temperature signal is then promptly sent to the user, allowing the user to fully understand the temperature distribution details inside the distribution box 10 and providing a basis for judging the operating status of the distribution box.

[0047] During the dust removal process, after temperature detection, the user issues a command based on actual needs (the user can issue a dust removal command at any time). At this time, the rotary table 3551 located on the second track begins to rotate, adjusting the dust removal brush 50 to face the inside of the distribution box 10. Subsequently, the moving bracket 30 starts again, driving the two dust removal brushes 50 below the first lead screw 32 and the second lead screw 34 to perform a horizontal reciprocating motion simultaneously. During the movement, the electric push rod 3552 performs a vertical extension and retraction motion. Through the coordinated action of the dust removal brushes 50 in the horizontal and vertical directions, all corners inside the distribution box 10 can be thoroughly cleaned, removing the dust accumulated inside the box. This effectively prevents dust accumulation from adversely affecting the normal operation of the electrical equipment inside the distribution box, such as avoiding problems like poor heat dissipation and decreased electrical insulation performance caused by excessive dust.

[0048] In the dust collection process, after the dust removal operation is completed, the drive unit 31 stops operating, and the collection mechanism 70 at the bottom of the distribution box 10 begins to work. The motor 71 starts and drives the third lead screw 72 to rotate. The scraper blade 73 mounted on the third lead screw 72 reciprocates under the drive of the lead screw. During the reciprocating movement of the scraper blade 73, the dust falling on the bottom of the distribution box 10 is gradually pushed into the dust collection troughs 74 located on both sides of the bottom of the distribution box 10, thereby achieving effective dust collection and cleaning, maintaining the cleanliness of the internal environment of the distribution box 10, and reducing the potential for secondary pollution or malfunctions caused by dust residue.

[0049] An automatic cooling mechanism 40 is also provided in the distribution box 10, whose working principle is closely connected to other components of the detection device. When the first lead screw 32 rotates, the first fan 41, located on the side of the distribution box 10 and meshing with one end of the first lead screw 32, begins to rotate. At the same time, the second fan 42, located below and cooperating with the worm gear 33, also rotates. The second fan 42 is connected to the third fan 43 via a belt 44, driving the third fan 43 to rotate. The coordinated operation of these three fans can accelerate the airflow inside the distribution box 10, quickly dissipating the heat inside the box, effectively reducing the temperature inside the distribution box 10, preventing electrical equipment damage or fires caused by excessive temperature, and further improving the operational safety and reliability of the distribution box 10.

[0050] In the event of a fire, the connecting wire 123 will fuse and the shielding plate 122 will fall off, allowing inspection personnel to understand the internal condition of the enclosure 11 and preventing electric shock accidents caused by contact with the distribution box 10.

[0051] The above description is merely a preferred embodiment of the present invention and is not intended to limit the invention. Various modifications and variations can be made to the present invention by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the scope of protection of the present invention.

Claims

1. A thermomagnetic induction fire extinguishing device, comprising a fire extinguishing canister (21) and a valve seat (211) disposed at the front end of the fire extinguishing canister (21), characterized in that, The valve seat (211) is a "T"-shaped three-way pipe structure. A thermomagnetic valve (22) is rotatably installed in the top channel of the valve seat (211). Both the thermomagnetic valve (22) and the valve seat (211) are provided with through holes (25). A fusible safety bolt (23) is installed in the through hole (25). It is a low melting point metal rod used to restrict the rotation of the thermomagnetic valve (22). A strong magnet (222) is installed in front of the valve seat (211).

2. The thermomagnetic induction fire extinguishing device according to claim 1, characterized in that, The thermomagnetic valve (22) includes a wheel-shaped magnet valve (221) and a valve (2212) disposed at the bottom of the wheel-shaped magnet valve (221) and adapted to the inside of the valve seat (211). The wheel-shaped magnet valve (221) is magnetic and there is a magnetic field between it and the strong magnet (222). When the thermomagnetic valve (22) is subjected to high temperature, its magnetism changes, causing the direction of the resultant force of the magnetic field force on the wheel-shaped magnet valve (221) to change, forming a torque that pushes the wheel-shaped magnet valve (221) to rotate.

3. An electrical automation detection device for power distribution automation equipment, comprising the thermomagnetic induction fire extinguishing device as described in any one of claims 1-2.

4. The electrical automation detection device for power distribution automation equipment according to claim 3, characterized in that, The thermomagnetic induction fire extinguishing device is installed on the top of the distribution box (10). Movable brackets (30) are installed on both sides of the thermomagnetic induction fire extinguishing device. A rotating telescopic component (355) and a detection platform (356) are installed on the bottom of the rotating telescopic component (355). A temperature sensor (61) is installed on one side of the detection platform (356) and a dust removal brush (50) is installed on the other side.

5. The electrical automation testing device for power distribution automation equipment according to claim 4, characterized in that, The movable support (30) includes a drive unit (31), a first lead screw (32) disposed on the drive unit (31), a worm (33) perpendicular to and meshing with the first lead screw (32), and a second lead screw (34) parallel to the first lead screw (32) and meshing with the worm (33). Both the first lead screw (32) and the second lead screw (34) are provided with threads.

6. The electrical automation detection device for power distribution automation equipment according to claim 5, characterized in that, The first lead screw (32) is provided with a first guide rod (324) on one side, and the two together form a first slide rail. The second lead screw (34) is provided with a second guide rod (342) on one side, and the two together form a second slide rail. Rotary telescopic components (355) are provided on both the first slide rail and the second slide rail.

7. The electrical automation testing device for power distribution automation equipment according to claim 6, characterized in that, The rotating telescopic component (355) includes a slider (35) sleeved on the first slide rail or the second slide rail, a rotating platform (3551) disposed at the bottom of the slider (35), and an electric push rod (3552) disposed at the bottom of the rotating platform (3551) and connected to the detection platform (356).

8. The electrical automation testing device for power distribution automation equipment according to claim 5, characterized in that, The distribution box (10) is also provided with an automatic cooling mechanism (40), including a first fan (41) located on the side of the distribution box (10) and meshing with one end of the first lead screw (32), a second fan (42) located below the worm (33) and cooperating with it, and a third fan (43) connected to the second fan (42) via a belt (44).

9. The electrical automation testing device for power distribution automation equipment according to claim 4, characterized in that, The bottom of the distribution box (10) is also provided with a collection mechanism (70), which includes a motor (71) on one side of the distribution box (10), a third lead screw (72) on the motor (71), a scraper (73) on the third lead screw (72), and dust collection troughs (74) on both sides of the bottom of the distribution box (10). The motor (72) drives the scraper (73) to reciprocate.

10. A testing method for an electrical automation testing device for power distribution automation equipment according to any one of claims 3-9, characterized in that, Includes the following steps: S1. In the initial state, the temperature sensor (61) faces the inside of the distribution box (10), and the temperature sensor (61) sends a signal to the drive unit (31), which drives the first lead screw (32) to rotate. S2. The first lead screw (32) rotates, causing the worm (33) to rotate, and at the same time, it drives the second lead screw (34) meshing with the worm (33) to rotate; S3. The first lead screw (32) and the second lead screw (34) rotate, respectively driving the slider (35) set on them to make a horizontal reciprocating motion. The electric push rod (3552) set below the slider (35) extends downward after a horizontal movement is completed. The temperature sensor (61) is used to detect the local temperature and send a signal to the user. S4. After the user issues a command, the rotating table (3551) on the second track rotates, the cleaning brush (50) faces the inside of the power distribution box (10), the moving bracket (30) drives the cleaning brush (50) to make a horizontal reciprocating motion, and the electric push rod (3552) moves vertically. S5. After the dust removal is completed, the drive unit (31) stops moving, and the scraper (73) on the collection mechanism (70) reciprocates to push the dust that falls on the bottom of the distribution box (10) into the dust collection trough (74).

Images