High-voltage power distribution cabinet based on line protection

Abstract

The invention relates to the technical field of power distribution cabinets, in particular to a high-voltage power distribution cabinet based on line protection, which comprises a power distribution cabinet body, a fixed frame and a plurality of movable frames are distributed in the power distribution cabinet body from top to bottom at intervals, and a plurality of electrical elements are transversely fixed on the fixed frame and each movable frame at intervals. According to the invention, a plurality of electrical elements are respectively fixed on the fixed frame and each movable frame, and each movable frame can move up and down. Therefore, when the interior of the power distribution cabinet body is in a waterlogging-free state, a certain distance is naturally kept between the fixed frame and each movable frame, the actual requirements of heat dissipation and wire arrangement can be met, and a powerful guarantee is provided for efficient operation of the power distribution cabinet. When the interior of the power distribution cabinet body is in a water accumulation state, each movable frame can move upwards and actively get close to the fixed frame, thereby effectively avoiding the risk that electrical elements below are soaked by accumulated water, greatly improving the operation safety and stability of a power system, and powerfully guaranteeing the continuity and reliability of power supply.

Description

Technical Field

[0001] The present invention relates to the technical field of power distribution cabinets, and in particular to a high-voltage power distribution cabinet based on line protection. Background Art

[0002] High-voltage distribution cabinet refers to electrical appliances that play the role of switching, controlling or protecting in power generation, transmission, distribution, power conversion and consumption of power systems. It mainly includes several categories such as high-voltage circuit breakers, high-voltage disconnectors and grounding switches, and is an important part of the power transmission and transformation equipment manufacturing industry.

[0003] The existing high-voltage power distribution cabinet includes a cabinet body, in which a number of mounting frames are arranged at intervals in the vertical direction. Each mounting frame is provided with a plurality of electrical components, and the electrical components in the upper and lower rows are connected by wires. In order to achieve convenient wiring and efficient heat dissipation, a certain gap is usually reserved between the upper and lower rows of electrical components. The existence of this gap provides sufficient space for wiring operations, so that the wires can be arranged more smoothly and reasonably, avoiding the entanglement and confusion of the lines, and effectively reducing the difficulty and time cost of wiring. At the same time, the setting of the gap also greatly optimizes the heat dissipation path, and air can flow freely between electrical components, quickly taking away the heat generated by the components when they are working, and preventing electrical failures caused by heat accumulation.

[0004] For outdoor high-voltage distribution cabinets, in actual use, once encountering severe weather, such as heavy rain and floods causing a large amount of water to flow back, or abnormal conditions such as sudden bursting of water pipes, water is very likely to accumulate at the bottom of the high-voltage distribution cabinet. Due to the layout characteristics of electrical components, the electrical components at the bottom will be directly soaked in the accumulated water, which can easily cause short-circuit faults, thus posing a great threat to the safe and stable operation of the power system. To this end, we proposed a high-voltage distribution cabinet based on line protection to effectively solve the above drawbacks. Summary of the invention

[0005] The object of the present invention is to provide a high-voltage distribution cabinet based on line protection, which is used to solve the problem in the prior art proposed in the above background technology that electrical components located at the bottom of the high-voltage distribution cabinet are easily soaked by accumulated water.

[0006] The present invention is achieved through the following technical solutions: A high-voltage power distribution cabinet based on line protection, including a power distribution cabinet body. A water accumulation monitoring device is installed at the inner bottom of the power distribution cabinet body. A fixed frame and several movable frames are spaced from top to bottom in the power distribution cabinet body. The fixed frame is fixed in the power distribution cabinet body, and each movable frame can move up and down. A number of electrical components are fixedly spaced horizontally on the fixed frame and each movable frame. A controller and a driving component for controlling the up and down sliding of several movable frames are also provided inside the power distribution cabinet body. The signal output end of the water accumulation monitoring device is connected to the controller, and the signal output end of the controller is connected to the driving component; A protective shell is fixed on each movable frame, and each protective shell is respectively located between two adjacent electrical components up and down. A wire is connected between two adjacent electrical components up and down and passes through the protective shell movably. A wire winding mechanism for tightening the wire is arranged in each protective shell; When two adjacent electrical components approach each other, the wire winding mechanism can wind up the wire; Bellows for the wire to pass through are fixed on the upper and lower sides of the protective shell, and a protective ring is fixed at the end of each bellows. When two adjacent electrical components approach each other, the bellows at the upper and lower ends of the protective shell can extend, so that each protective ring can abut against the wiring terminal of the corresponding electrical component.

[0007] Optionally, the water accumulation monitoring device is any one or any combination of a water accumulation sensor, an infrared liquid level sensor, and a water immersion sensor.

[0008] Optionally, the driving component includes a multi-mover linear motor, and each movable frame is respectively fixed on each slide table of the multi-mover linear motor.

[0009] Optionally, the wire winding mechanism includes movable plates on the left and right sides of the protective shell, and the two movable plates can move away from or close to each other; A number of connecting rods are fixed on the side where the two movable plates approach each other. Each connecting rod extends horizontally into the protective shell movably, and a wire threading member is fixed at the end of each connecting rod.

[0010] Optionally, the wire threading member includes a wheel frame fixed at the end of the connecting rod, and two wire threading wheels are rotatably connected to each wheel frame. A wire threading gap for the wire to pass through is left between the two wire threading wheels; In the natural state, each wire threading gap is on the same vertical line; when the two movable plates move away from each other, the wire threading gaps are distributed in a left-right staggered manner.

[0011] Optionally, a sliding rod is fixed on the movable plate, and a sliding groove for the sliding rod to slide up and down is opened on the inner wall of the power distribution cabinet body.

[0012] Optionally, the sliding groove includes a first vertical groove, an inclined groove, and a second vertical groove distributed in sequence from bottom to top; When the slide bar slides in the first vertical slot, the two movable plates are in a completely close state; when the slide bar slides in the second vertical slot, the two movable plates are in a completely separated state.

[0013] Optionally, each protective ring is fixed with a plurality of linkage rods at intervals along its circumference, each linkage rod extends vertically into the protective shell, and movable rings that can move up and down are fixed to the ends of each linkage rod on the upper side and the lower side.

[0014] Optionally, a spring sleeved on each linkage rod is provided between the protection ring and the protection shell; in a natural state, the spring is in a compressed state; A rope is connected between the movable ring and the adjacent threading piece, and a guide wheel for the rope to pass through is installed in the protective shell; in a natural state, the rope is in an L-shaped straight state.

[0015] Optionally, a sealing ring is fixed on the end surface of the protective ring away from the protective shell, a first sealing ring is provided at the intersection of each linkage rod and the protective shell, and a second sealing ring is provided at the intersection of each connecting rod and the protective shell.

[0016] Compared with the prior art, the present invention provides a high-voltage power distribution cabinet based on line protection, which has the following beneficial effects: 1. The present invention fixes several electrical components on the fixed frame and each movable frame respectively. Since each movable frame can move up and down, when there is no water accumulation in the power distribution cabinet, a certain distance is naturally maintained between the fixed frame and each movable frame, which can meet the actual needs of heat dissipation and wiring, and provide a strong guarantee for the efficient operation of the power distribution cabinet.

[0017] When water accumulates inside the power distribution cabinet, the movable frames can move upward and actively move closer to the fixed frames, effectively avoiding the risk of the electrical components below being soaked in water, greatly improving the safety and stability of the power system operation, and effectively ensuring the continuity and reliability of power supply.

[0018] 2. The present invention sets a wire-receiving mechanism. In a natural state, that is, when there is no water accumulation in the power distribution cabinet, the threading seams in the wire-receiving mechanism are on the same vertical line. This ingenious design greatly facilitates the wire threading operation, and is particularly conducive to achieving efficient wiring between two adjacent electrical components, providing a strong guarantee for the convenience of internal circuit connection in the power distribution cabinet.

[0019] When there is water accumulation inside the power distribution cabinet body and each movable frame is triggered to move upward, the two movable plates inside the wire take-up mechanism will automatically move away from each other. During this process, the wire threading slots will be distributed in a left-right staggered manner, thereby being able to tighten the wires. This avoids the situation of the wires being intertwined with each other during the process of the movable frames moving closer upward, and at the same time avoids the wires hanging on other electrical components, thus laying a foundation for the subsequent smooth downward expansion of the movable frames, and ensuring the stable operation and operation flexibility of the power distribution cabinet under complex working conditions in all aspects.

[0020] 3. By setting the protective shell, bellows and protective ring, under normal working conditions without water accumulation inside the power distribution cabinet body, the bellows is in a contracted state. At this time, the protective ring is far away from the electrical components, creating a spacious and convenient space for the connection operation between the wires and the electrical components, and greatly improving the efficiency and convenience of the wiring work.

[0021] Once water accumulation occurs inside the power distribution cabinet body and the movable frames move closer upward, the bellows will expand, causing the protective ring to closely fit the electrical components. During this process, the protective shell, bellows and protective ring cooperate with each other to provide comprehensive sealing protection for the wires and the connection points between the wires and the electrical components, effectively preventing water accumulation from invading the connection parts of the wires and the electrical components, thereby avoiding faults such as interface short circuits caused by water accumulation, providing a reliable guarantee for the stable operation of the power distribution cabinet, and significantly improving the safety and reliability of the power system. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 is a state diagram of the inside of the power distribution cabinet body of the present invention without water accumulation; Figure 2 is a schematic diagram of the chute of the present invention; Figure 3 is a state diagram of the inside of the power distribution cabinet body of the present invention with water accumulation; Figure 4 is a front view of the protective shell of the present invention; Figure 5 is a rear view of the protective shell of the present invention; Figure 6 is a schematic diagram of the internal structure of the protective shell of the present invention; Figure 7 is a schematic diagram of the structure of the wire threading part of the present invention; Figure 8 is a state diagram of the wire threading slots without water accumulation of the present invention; Figure 9 is a state diagram of the wire threading slots with water accumulation of the present invention.

[0023] In the figure: 1. Power distribution cabinet body; 2. Water accumulation monitoring device; 3. Fixed frame; 4. Movable frame; 5. Electrical components; 6. Protective shell; 7. Conducting wire; 8. Wire winding mechanism; 801. Movable plate; 802. Connecting rod; 803. Wire threading member; 8031. Wheel frame; 8032. Wire threading wheel; 8033. Wire threading slit; 9. Slide bar; 10. Chute; 1001. First vertical chute; 1002. Inclined chute; 1003. Second vertical chute; 11. Bellows; 12. Protective ring; 13. Linking rod; 14. Movable ring; 15. Spring; 16. Rope; 17. Guide pulley; 18. Sealing ring; 19. First sealing ring; 20. Second sealing ring. Detailed implementation mode

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1 to 9 , a high-voltage power distribution cabinet based on line protection, including a power distribution cabinet body 1, and a plurality of heat dissipation ports are provided on the power distribution cabinet body 1. When the power distribution cabinet is operating, the heat generated by the internal components causes the air temperature inside the cabinet to rise. The hot air rises due to the decrease in density and flows out from the heat dissipation ports. At the same time, the relatively low-temperature air outside flows continuously into the cabinet through the heat dissipation ports under the action of the pressure difference. In this way, a continuous air convection is formed, quickly taking out the heat inside the power distribution cabinet and effectively reducing the internal temperature to ensure the stable operation of the electrical components.

[0026] In order to solve the problem that the components at the lower part inside the high-voltage power distribution cabinet in the prior art are easily soaked by accumulated water, the following design is specifically carried out: A water accumulation monitoring device 2 is installed at the inner bottom of the power distribution cabinet body 1 for detecting whether there is accumulated water in the power distribution cabinet body 1. In this embodiment, the water accumulation monitoring device 2 is any one or any combination of a water accumulation sensor, an infrared liquid level sensor, and a water immersion sensor. Among them, the water accumulation sensor works mostly based on the principle of electrode conduction; when there is accumulated water in the power distribution cabinet and the water contacts the electrode of the sensor, due to the conductivity of the water, the originally disconnected electrode circuit will be conducted, and the sensor can thereby detect the existence of accumulated water and feedback the signal to the monitoring system.

[0027] The infrared liquid level sensor utilizes the reflection characteristics of infrared light. When there is no accumulated water, the infrared light emitted by it propagates normally, and the receiving end can stably receive the infrared signal. Once accumulated water appears, the surface of the accumulated water will reflect and refract the infrared light, causing changes in the intensity or phase of the infrared light signal received by the receiving end. By analyzing these changes, the sensor can accurately judge the liquid level height of the accumulated water and whether there is accumulated water.

[0028] The water immersion sensor is a common type based on water-absorbing materials. When it comes into contact with accumulated water, the water-absorbing material inside the sensor quickly absorbs water, resulting in changes in its own physical properties, such as changes in resistance value. By detecting this change in characteristics, the sensor can keenly sense the presence of accumulated water and send out monitoring signals in a timely manner.

[0029] By using these sensors alone or in a collaborative combination, it is possible to flexibly, efficiently, and reliably monitor the accumulated water condition in the power distribution cabinet in all directions, providing a key basis for the activation of subsequent protection measures and effectively ensuring the safe and stable operation of the power distribution cabinet.

[0030] In the power distribution cabinet body 1, there are fixed frames 3 and several movable frames 4 distributed at intervals from top to bottom. The fixed frames 3 are fixed inside the power distribution cabinet body 1 and cannot move up and down. Each movable frame 4 can move up and down and thus move closer to the fixed frame 3. A number of electrical components 5 (circuit breakers, disconnectors, load switches, fuses, etc.) are fixed at intervals along the horizontal direction on the fixed frames 3 and each movable frame 4. When there is no accumulated water in the power distribution cabinet body 1, a certain distance is naturally maintained between the fixed frames 3 and each movable frame 4, which can normally dissipate heat from the electrical components 5 and is also convenient for operating the line connections between the electrical components 5.

[0031] It should be noted that a controller (not shown in the figure) and a driving component for controlling the up and down sliding of several movable frames 4 are also provided inside the power distribution cabinet body. The signal output end of the accumulated water monitoring device 2 is connected to the controller, and the signal output end of the controller is connected to the driving component. In this embodiment, the driving component includes a multi-slider linear motor, and each movable frame 4 is respectively fixed on each slide of the multi-slider linear motor. The multi-slider linear motor is composed of a stator (linear guide rail) and multiple independently movable sliders (slides). When it is necessary for each movable frame 4 to move upward and get closer to the fixed frame 3, the control system drives each slide to move upward along the linear guide rail, so that each movable frame 4 moves upward until it gets closer to the fixed frame 3, completing the protection action against the accumulated water situation and preventing the components below from being soaked by the accumulated water.

[0032] With the above structure, when the water accumulation monitoring device 2 does not detect water accumulation at the bottom inside the power distribution cabinet body 1, a certain distance is maintained between the fixed frame 3 and each movable frame 4, providing sufficient space for wiring operations. At the same time, air can freely circulate between the electrical components 5, quickly taking away the heat generated when the components work (as Figure 1 shown).

[0033] When the water accumulation monitoring device 2 detects water accumulation at the bottom inside the power distribution cabinet body 1, the multi-moving element linear motor drives each movable frame 4 to move closer to each other and move upward to approach the fixed frame 3, leaving a certain space at the bottom inside the power distribution cabinet body 1, so that the electrical components 5 at the lowest layer are not easily soaked by water accumulation, improving the safety and stability of the operation of the power system (as Figure 3 shown).

[0034] In some embodiments of the present application, a protective shell 6 is fixed on each movable frame 4. Each protective shell 6 is respectively located between two adjacent electrical components 5 up and down. A wire 7 that movably passes through the protective shell 6 is connected between two adjacent electrical components 5 up and down to realize the line connection between two adjacent electrical components 5. A wire winding mechanism 8 for tightening the wire 7 is arranged in each protective shell 6. When the movable frame 4 moves upward, the wire 7 can be tightened by the wire winding mechanism 8, avoiding the situation that the wires 7 are wound around each other and also avoiding the wires 7 hanging on other electrical components 5, thereby laying a foundation for the subsequent smooth downward expansion of the movable frame 4.

[0035] The wire winding mechanism 8 is introduced as follows: The wire winding mechanism 8 includes movable plates 801 located on the left and right sides of the protective shell 6. The two movable plates 801 can move away from or close to each other. In this embodiment, a sliding rod 9 is fixed on the movable plate 801, and a sliding groove 10 for the sliding rod 9 to slide up and down is opened on the inner wall of the power distribution cabinet body 1. When the movable frame 4 moves up and down, it can drive the sliding rod 9 to slide up and down in the sliding groove 10, so that the two movable plates 801 can automatically move away from or close to each other.

[0036] It should be added that the sliding groove 10 includes a first vertical groove 1001, an inclined groove 1002, and a second vertical groove 1003 that are sequentially distributed from bottom to top; when the sliding rod 9 slides in the first vertical groove 1001, the two movable plates 801 are in a completely close state; when the sliding rod 9 slides in the second vertical groove 1003, the two movable plates 801 are in a completely far state.

[0037] In a state without accumulated water, the movable frames 4 are away from each other, ensuring efficient heat dissipation and convenient wire routing among the electrical components 5. At this time, the sliding rod 9 is located in the first vertical groove 1001, causing the two movable plates 801 on both sides of the protective shell 6 in the wire winding mechanism 8 to be closely adjacent. Once accumulated water appears inside the power distribution cabinet body 1, the accumulated water monitoring device 2 triggers a response, and the movable frame 4 then moves upward, thereby driving the sliding rod 9 to slide from the first vertical groove 1001 towards the inclined groove 1002. As the sliding rod 9 moves, the two movable plates 801 gradually move away from each other. When the sliding rod 9 finally slides from the inclined groove 1002 into the second vertical groove 1003, the two movable plates 801 reach a completely separated state.

[0038] Therefore, when the movable frame 4 moves up and down, it can cleverly drive the two movable plates 801 to move away from or close to each other through the cooperation of the sliding rod 9 and the chute 10, seamlessly realizing the subsequent wire winding work. Compared with the traditional design, there is no need to additionally set up a separate driving mechanism to perform the wire winding operation. This not only greatly simplifies the internal structure of the power distribution cabinet, reduces the equipment cost and maintenance difficulty, but also improves the reliability and stability of the system, reduces the potential risks caused by the failure of the complex driving mechanism, and provides a strong guarantee for the safe and stable operation of the power distribution cabinet under complex working conditions such as accumulated water.

[0039] The wire winding mechanism 8 further includes: a plurality of connecting rods 802 are fixed on one side where the two movable plates 801 are close to each other. Each connecting rod 802 extends horizontally and movably into the protective shell 6. A wire threading member 803 is fixed at the end of each connecting rod 802, and the wire 7 sequentially passes through each wire threading member 803. In this embodiment, the wire threading member 803 includes a wheel frame 8031 fixed at the end of the connecting rod 802. Two wire threading wheels 8032 are rotatably connected to each wheel frame 8031, and a wire threading slot 8033 for the wire 7 to pass through is left between the two wire threading wheels 8032. In the natural state, each wire threading slot 8033 is located on the same vertical line, and this layout design greatly facilitates the smooth passing of the wire 7, providing great convenience for the preliminary wiring work.

[0040] With the above structure, when there is no accumulated water inside the power distribution cabinet body 1, the sliding rod 9 is located in the first vertical groove 1001, causing the two movable plates 801 to be close to each other, so that each wire threading slot 8033 is located on the same vertical line, facilitating the smooth passing of the wire 7.

[0041] When there is water accumulation in the power distribution cabinet body 1, the movable frame 4 moves upward, thereby driving the sliding rod 9 to slide into the second vertical groove 1003 along the first vertical groove 1001 and the inclined groove 1002, causing the two movable plates 801 to move away from each other, and further causing each wire threading slot 8033 to gradually present a state of staggered distribution from left to right. At this time, the originally straight wire 7 will be wavy under the action of each wire threading slot 8033. This unique morphological change can effectively tighten the wire 7, avoiding problems such as the wires 7 being entangled with each other or hanging on other electrical components 5 during the movement of the movable frame 4, ensuring the stable operation of the entire power distribution cabinet system under complex working conditions.

[0042] During the R & D practice process, it was found that when the inside of the power distribution cabinet encounters water accumulation, the inside of the power distribution cabinet is extremely humid. At this time, the water vapor in the air is easily attached to the wiring ends of the wires 7. Due to the conductivity of water, this is extremely likely to cause interface short - circuit faults, seriously threatening the safe and stable operation of the power distribution cabinet. To effectively overcome this problem, the following targeted design was carried out: In another embodiment of the present application, bellows 11 for the wires 7 to pass through are fixed on the upper and lower sides of the protective shell 6. Protection rings 12 are fixed at the ends of each bellows 11. A number of linkage rods 13 are fixedly arranged at intervals along the circumferential direction of each protection ring 12. Each linkage rod 13 extends vertically and movably into the protective shell 6. Movable rings 14 that can move up and down are fixed at the ends of the upper - side linkage rods 13 and the ends of the lower - side linkage rods 13. When the movable rings 14 move up and down, they can drive the protection rings 12 to move up and down synchronously through the linkage rods 13. During this process, the bellows 11 will expand and contract accordingly.

[0043] In this embodiment, a spring 15 sleeved on each linkage rod 13 is arranged between the protection ring 12 and the protective shell 6; in the natural state, the spring 15 is in a compressed state, always providing an elastic force for the protection ring 12 to move away from the protective shell 6. A rope 16 is connected between the movable ring 14 and the adjacent wire threading member 803. A guide wheel 17 for the rope 16 to pass through is installed in the protective shell 6; in the natural state, the rope 16 is in an L - shaped taut state. In this embodiment, the rope 16 is connected to the wheel frame 8031 in the wire threading member 803.

[0044] With the above structure, in the normal working state where there is no water accumulation inside the power distribution cabinet, the movable frames 4 unfold from each other, and the two movable plates 801 are closely adjacent. At this time, through the coordinated action of the wheel frame 8031 and the rope 16, the movable ring 14 is strongly pulled, causing the corrugated pipe 11 to be in a compressed state, and at the same time driving the protective ring 12 away from the electrical component 5. This state creates a spacious and convenient space for the connection operation between the wire 7 and the electrical component 5, greatly improving the efficiency and convenience of the wiring work. Moreover, since the corrugated pipe 11 is in a compressed state, its coverage of the wire 7 is relatively small, enabling the wire 7 to be as exposed as possible to the surrounding air, ensuring that heat can be dissipated smoothly and not being easily affected by the presence of the corrugated pipe 11 in terms of the heat dissipation performance of the wire 7.

[0045] Once water accumulates inside the power distribution cabinet, the movable frames 4 will quickly move closer upward. This action automatically drives the two movable plates 801 away from each other, so that the wire-passing slits 8033 are distributed in a left-right staggered manner, thereby tightening the wire 7 and making it wavy. During this process, the rope 16 loses its tension and becomes slack. At this time, under the action of the spring 15, the protective ring 12 is driven to move outward until it closely fits with the electrical component 5. At the same time, the corrugated pipe 11 gradually unfolds, providing comprehensive and non-blind-spot sealing protection for the wire 7 and the connection between the wire 7 and the electrical component 5, effectively preventing water vapor from invading the connection part and avoiding short-circuit faults caused by water accumulation, providing a solid and reliable guarantee for the stable operation of the power distribution cabinet.

[0046] In addition, a sealing ring 18 is fixed on the end face of the protective ring 12 away from the protective shell 6. When the protective ring 12 fits with the wiring terminal of the electrical component 5, the sealing ring 18 can seal the contact area between the two to prevent water accumulation from entering. A first sealing ring 19 is provided at the junction of each linkage rod 13 and the protective shell 6 to seal the junction of the linkage rod 13 and the protective shell 6 and prevent water accumulation from entering the protective shell 6. A second sealing ring 20 is provided at the junction of each connecting rod 802 and the protective shell 6 to seal the junction of the connecting rod 802 and the protective shell 6 and prevent water accumulation from entering the protective shell 6. By setting the sealing ring 18, the first sealing ring 19 and the second sealing ring 20, when the protective ring 12 fits with the electrical component 5, a relatively sealed space is formed. This sealed space can provide reliable protection for the wire 7 and the connection part between the wire 7 and the electrical component 5, minimizing the risk of damage to the circuit caused by water accumulation and ensuring the stable operation of the power distribution cabinet in a harsh environment.

[0047] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device. Without further limitation, an element defined by the statement "comprising an..." does not exclude the presence of additional identical elements in the process, method, article or device comprising the element.

[0048] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A high-voltage power distribution cabinet based on line protection, comprising a power distribution cabinet body, characterized in that: A water accumulation monitoring device is installed at the inner bottom of the power distribution cabinet body. A fixed frame and a plurality of movable frames are spaced from top to bottom in the power distribution cabinet body. The fixed frame is fixed in the power distribution cabinet body. Each movable frame can move up and down. A plurality of electrical components are fixed on the fixed frame and each movable frame at intervals in the lateral direction. A controller and a driving assembly for controlling the upward and downward sliding of the plurality of movable frames are also provided inside the power distribution cabinet body. The signal output end of the water accumulation monitoring device is connected to the controller, and the signal output end of the controller is connected to the driving assembly. A protective shell is fixed on each movable frame, each protective shell is respectively located between two upper and lower adjacent electrical components, a wire that moves through the protective shell is connected between the two upper and lower adjacent electrical components, and a wire reeling mechanism for tightening the wire is arranged in each protective shell; when the upper and lower adjacent electrical components are close to each other, the wire reeling mechanism can reel in the wire; The upper and lower sides of the protective shell are fixed with corrugated tubes for the wires to pass through, and protective rings are fixed at the ends of each corrugated tube. When two adjacent electrical components are close to each other, the corrugated tubes at the upper and lower ends of the protective shell can be extended so that each protective ring can abut against the wiring terminal of the corresponding electrical component.

2. A high-voltage power distribution cabinet based on line protection according to claim 1, characterized in that: The water accumulation monitoring device is any one or any combination of a water accumulation sensor, an infrared liquid level sensor and a water immersion sensor.

3. A high-voltage power distribution cabinet based on line protection according to claim 1, characterized in that: The driving assembly comprises a multi-motor linear motor, and each movable frame is respectively fixed on each slide table of the multi-motor linear motor.

4. A high-voltage power distribution cabinet based on line protection according to claim 1, characterized in that: The wire-receiving mechanism comprises movable plates located on the left and right sides of the protective shell, and the two movable plates can move away from or approach each other; A plurality of connecting rods are fixed on one side of the two movable plates close to each other. Each connecting rod is movable and extends into the protective shell in a transverse direction. A threading piece is fixed at the end of each connecting rod.

5. A high-voltage power distribution cabinet based on line protection according to claim 4, characterized in that: The threading member comprises a wheel frame fixed to the end of the connecting rod, and two threading wheels are rotatably connected to each wheel frame, and a threading slot for the wire to pass through is left between the two threading wheels; In a natural state, the threading seams are located on the same vertical line; when the two movable plates are away from each other, the threading seams are staggered left and right.

6. A high-voltage power distribution cabinet based on line protection according to claim 4, characterized in that: A slide bar is fixed on the movable plate, and a slide groove for the slide bar to slide up and down is provided on the inner wall of the power distribution cabinet body.

7. A high-voltage power distribution cabinet based on line protection according to claim 6, characterized in that: The chute includes a first vertical chute, an inclined chute, and a second vertical chute which are sequentially distributed from bottom to top; When the slide bar slides in the first vertical slot, the two movable plates are in a completely close state; when the slide bar slides in the second vertical slot, the two movable plates are in a completely separated state.

8. A high-voltage power distribution cabinet based on line protection according to claim 4, characterized in that: A plurality of linkage rods are fixed at intervals along the circumference of the protection ring, each linkage rod extends vertically into the protection shell, and movable rings that can move up and down are fixed at the ends of each linkage rod on the upper side and each linkage rod on the lower side.

9. A high-voltage power distribution cabinet based on line protection according to claim 8, characterized in that: A spring sleeved on each linkage rod is arranged between the protection ring and the protection shell; in a natural state, the spring is in a compressed state; A rope is connected between the movable ring and the adjacent threading piece, and a guide wheel for the rope to pass through is installed in the protective shell; in a natural state, the rope is in an L-shaped straight state.

10. A high-voltage power distribution cabinet based on line protection according to claim 9, characterized in that: A sealing ring is fixed on the end surface of the protection ring away from the protection shell, a first sealing ring is arranged at the intersection of each linkage rod and the protection shell, and a second sealing ring is arranged at the intersection of each connecting rod and the protection shell.

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