High-voltage looped network power switch cabinet

Abstract

The invention discloses a high-voltage looped network power switch cabinet, and belongs to the technical field of switch cabinets, the high-voltage looped network power switch cabinet comprises a switch cabinet main body, the center of the front end face of the switch cabinet main body is rotatably connected with a box door, one side of the center of the front end face of the box door is provided with a fingerprint coded lock, and the upper side of one side of the front end face of the switch cabinet main body is provided with a locking structure. Temperature control structures are arranged at the centers of the two side walls of the switch cabinet main body, a switch cabinet structure is arranged at the center of the interior of the switch cabinet main body, a buffer structure is arranged at the center of the lower end face of the switch cabinet main body, the inner side wall of the switch cabinet main body is sleeved with a heat preservation layer, and the inner side wall of the heat preservation layer is sleeved with an inner layer. Directional conveying of hot air and normal-temperature air can be achieved, energy waste caused by undifferentiated temperature control is avoided, heat circulation of a single heat source and multi-area benefits can be achieved, and meanwhile the heat insulation function of polyurethane heat insulation cotton of the heat insulation layer is matched, hot air loss is reduced, and equipment aging caused by local overheating is avoided.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of switch cabinets, and particularly relates to a high-voltage looped network power switch cabinet. BACKGROUND

[0002] As a core equipment in a power distribution network, the high-voltage looped network power switch cabinet is mainly used for power distribution, circuit on-off control and fault protection of a 10kV-35kV high-voltage looped network system, and is widely applied to scenes such as urban power distribution networks, industrial parks, residential communities and transportation hubs, and is a key node for guaranteeing reliable operation of a power system. With the development of the power system towards intelligence, high density and full-scene adaptation, the power distribution network presents the characteristics of high power load density, diversified power consumption scenes and strict power supply reliability requirements. For example, the core area of a city needs to guarantee 24-hour uninterrupted power supply, an industrial park needs to cope with the instantaneous load impact of high-power equipment, and a residential community needs to adapt to new power consumption equipment such as charging piles and distributed photovoltaics. As an intermediate link of the power distribution network, the high-voltage looped network power switch cabinet needs to meet the requirements of high-voltage circuit control, rapid fault isolation and long-term stable operation.

[0003] The existing high-voltage looped network power switch cabinet mainly has the following deficiencies:

[0004] In the existing high-voltage looped network power switch cabinet, a temperature control mode of simultaneously starting multiple heaters is adopted, and temperature adjustment is performed on all regions without distinction, which is easy to cause energy waste and may cause local overheating, accelerates equipment aging, affects equipment service life, lacks independent temperature monitoring means for each region, and it is difficult to accurately grasp the temperature change of different regions, which may cause untimely or inaccurate temperature control and cannot effectively cope with multi-region temperature abnormality problems. A shock-absorbing pad and a shock-absorbing spring are simply provided, and the shock-absorbing effect decreases after a long time of use, impact energy cannot be effectively absorbed, vibration is easily transmitted to the inside of the cabinet body, electrical components are damaged, and safety hazards exist. The corrosion resistance is poor, the plating layer is easy to fall off, the service life is short, and the maintenance cost is high. The cables lack orderly management and are disorderly arranged, which easily causes short circuits. After the cables are inserted, there is no precise fixing device, and the cables are easy to wear. The closing state of the box door cannot be monitored in real time, and when the door body is not completely closed or is accidentally loosened, it cannot be found in time, foreign matters are easy to enter or personnel are easy to touch live parts, and safety accidents are caused. SUMMARY

[0005] In order to overcome the above defects, the application provides a high-voltage ring network power switch cabinet, which solves the non-differential temperature control of the prior art by simultaneously starting multiple heaters, which not only wastes energy but also easily causes local overheating, accelerates equipment aging, lacks independent temperature monitoring of each area, and the temperature control response is not timely and accurate, making it difficult to respond to multi-area temperature abnormalities, relying only on simple shock pads or springs, which are prone to aging and failure over a long period of use, cannot effectively absorb impact energy, and the vibration is easily transmitted to the cabinet to damage the components, the cabinet body has poor corrosion resistance, the plating layer is easily detached, has a short service life and high maintenance cost, some equipment also has a risk of theft, the cables lack orderly storage, are messy and prone to short circuits, and have no precise fixing device after being inserted, are prone to friction and wear during long-term operation, and pose a safety hazard, cannot monitor the closed state of the box door in real time, and it is difficult to discover when the door body is not tightly closed or accidentally loosened, which easily leads to the entry of foreign matter or the accidental touching of live components by personnel, causing safety accidents.

[0006] To achieve the above object, the application provides the following technical scheme: a high-voltage ring network power switch cabinet, comprising a switch cabinet main body, a box door is rotatably connected to the center of the front end face of the switch cabinet main body, a fingerprint lock is arranged on the center of the front end face of the box door, a locking structure is arranged on the upper side of the front end face of the switch cabinet main body, a temperature control structure is arranged on the center of the side wall of the switch cabinet main body, a switch cabinet structure is arranged in the center of the inside of the switch cabinet main body, a buffer structure is arranged in the center of the lower end face of the switch cabinet main body, a thermal insulation layer is arranged on the inner side wall of the switch cabinet main body, and an inner layer is arranged on the inner side wall of the thermal insulation layer.

[0007] The switch cabinet structure comprises a first partition plate, the first partition plate is arranged at the lower center of the inner layer, a second partition plate is arranged at the upper center of the inner layer, a plurality of rubber wrapped coils are horizontally arranged on the front and rear center of the upper end face of the low-voltage control and auxiliary equipment room of the first partition plate, an inclined flow guide groove is arranged on the upper center of the second partition plate, a drainage control valve is arranged at the lowest center of the flow guide groove, and the drainage control valve is arranged obliquely.

[0008] As a further scheme of the application, a low-voltage control and auxiliary equipment room is arranged at the lower center of the inner layer, a switch and protection unit room is arranged on the upper end of the first partition plate in the inner layer, a cable placement area is arranged on the upper end of the second partition plate in the inner layer, a spiral winding device is arranged on the upper sides and the lower center of the inner layer of the cable placement area, and bolts are arranged on the upper sides and the upper center of the rear end face of the switch cabinet main body.

[0009] As a further scheme of the application, one end of each of the three bolts penetrates through the rear end face of the switch cabinet main body, the rear end face of the thermal insulation layer, the rear end face of the inner layer, the rear end face of the cable placement area, and the rear end face of the three spiral winding devices, and is threadedly connected to the inside of the three spiral winding devices.

[0010] As a further scheme of the present application: the locking structure comprises a first fixed frame, the first fixed frame is arranged on the upper side of the front end face of the switch cabinet body, a first compression spring is arranged at the inner center of the first fixed frame, a movable rod is arranged at one end of the first compression spring and at the lower side of the inner center of the first fixed frame, and a second compression spring is arranged at the inner lower center of the movable rod.

[0011] As a further scheme of the present application: one end of the second compression spring is arranged at the inner lower center of the movable rod and a push rod is arranged at the lower center of the inner center of the movable rod, a second fixed frame is arranged on the upper side wall of the front end face of the cabinet door, one end of the movable rod penetrates through the upper end face of the second fixed frame and reaches the lower end face of the second fixed frame, the second fixed frame and the push rod are matched with each other, and a contact sensor is arranged at the center of the upper end face of the cabinet door.

[0012] As a further scheme of the present application: the temperature control structure comprises an air inlet frame, the air inlet frame is arranged at the upper center of one side wall of the switch cabinet body, one end of the air inlet frame penetrates through the side wall of the switch cabinet body, the side wall of the heat preservation layer, the side wall of the inner layer and the side wall of the cable placement area to the inside of the cable placement area, a first fan is arranged at the inner center of the air inlet frame, and a first air inlet pipe is arranged at the upper center of the other side wall of the switch cabinet body.

[0013] As a further scheme of the present application: the two ends of the first air inlet pipe penetrate through the side wall of the switch cabinet body, the side wall of the heat preservation layer, the side wall of the inner layer, the cable placement area and the side wall of the switch and protection unit chamber to the inside of the cable placement area and the switch and protection unit chamber respectively, a second fan is arranged at the lower side of the side wall of the switch and protection unit chamber and inside the first air inlet pipe, a second air inlet pipe is arranged at the lower center of the other side wall of the switch cabinet body, and the two ends of the second air inlet pipe penetrate through the side wall of the switch cabinet body, the side wall of the heat preservation layer, the side wall of the inner layer, the side wall of the switch and protection unit chamber and the side wall of the low-voltage control and auxiliary equipment chamber to the inside of the switch and protection unit chamber and the low-voltage control and auxiliary equipment chamber respectively.

[0014] As a further scheme of the present application: a third fan is arranged inside the second air inlet pipe and in the low-voltage control and auxiliary equipment chamber, an air outlet frame is arranged at the lower center of the other side of the switch cabinet body, a fourth fan is arranged at the inner center of the air outlet frame, heaters are arranged at the center of the inner back walls of the cable placement area, and temperature sensors are arranged at the centers of the upper inner walls of the cable placement area, the switch and protection unit chamber and the low-voltage control and auxiliary equipment chamber.

[0015] As a further scheme of the present application: the buffering structure comprises a stable frame, the stable frame is arranged at the center of the lower end face of the switch cabinet body, dampers are arranged at the lower end face of the stable frame, third compression springs are arranged outside the four dampers, and bottom plates are arranged at the lower end faces of the four dampers.

[0016] As a further scheme of the present application: the switch cabinet body material is an aluminized zinc steel plate, the heat preservation layer material is filled polyurethane heat preservation cotton, and the inner layer material is stainless steel.

[0017] Compared with the prior art, the present application has the beneficial effects that:

[0018] 1、The present application, through temperature sensors arranged in the cable placement area, the switch and protection unit chamber and the low-voltage control and auxiliary equipment chamber respectively, independently collects temperature data of each area, when the temperature of multiple areas is abnormal, the second fan and the third fan are linked through the first air conveying pipe and the second air conveying pipe to realize directional conveying of hot air and air at normal temperature, avoiding energy waste caused by indiscriminate temperature control, in the heating mode, the heater in the cable area generates heat, and then the second fan and the third fan are linked through the first air conveying pipe and the second air conveying pipe to convey hot air to other low-temperature areas, realizing heat circulation with a single heat source and multiple areas benefiting, and at the same time, the fourth fan is suspended for exhaust, cooperating with the heat insulation effect of the polyurethane heat preservation cotton of the heat preservation layer, reducing the loss of hot air, compared with the traditional mode of starting multiple heaters at the same time, the energy consumption is reduced by more than 30%, and equipment aging caused by local overheating is avoided, and at the same time, aiming at the problem that condensation water is easily generated in the temperature control process, an inclined flow guide groove and an inclined drainage control valve are arranged on the second partition plate, condensation water can be directionally gathered along the flow guide groove and completely discharged through the control valve, avoiding the risk of short circuit caused by random dripping of condensation water in the traditional switch cabinet, forming a synergistic mechanism of temperature control and condensation protection, and being especially suitable for the use requirements in humid environments such as basements and outdoor rainy areas.

[0019] 2、The present application, through four dampers, directly absorbs impact energy in the vertical direction, such as instantaneous impact force generated by bumps in the transportation process and external impact, reduces the transmission of vibration to the cabinet body, at the same time, the third compression spring sleeved outside the damper assists in buffering, when subjected to downward impact force, the spring contracts to further offset the vibration, and after the impact force disappears, the spring quickly resets to drive the cabinet body back to the horizontal state, avoiding the problem that the cabinet body is inclined caused by slow resetting of the traditional single spring, at the same time, through the three-layer nesting of the aluminized zinc steel plate, the polyurethane heat preservation cotton and the stainless steel, corrosion resistance, heat preservation and oxidation resistance are considered, the stable operation of the internal equipment is ensured, the internal functional areas are clear, different areas realize the isolation and placement of different equipment and management, mutual interference is avoided, the overall performance is improved, and at the same time, through the spiral winding device, orderly winding is realized, short circuit risk caused by cable disorder is avoided, and at the same time, through the rubber wrapping ring, not only insulation protection is realized, but also the cable penetrating in is fixed in a precise position, cable wear is reduced, and cable safe and stable operation is ensured from details.

[0020] 3、The present application, through the first compression spring, the second compression spring is always in the state of stretching, the movable rod penetrates the second fixed frame, the push rod clamps the second fixed frame, the mechanical locking structure forcibly locks the cabinet door, and the risk of directly operating the mechanical structure by bypassing the electronic lock is eliminated, when the electronic verification is passed, the mechanical locking is released by synchronously shrinking the double compression springs, and, by adding a contact sensor on the upper end of the cabinet door, the fitting state of the door body and the cabinet body is monitored in real time, if the door body is not completely closed or is accidentally loosened by vibration after the cabinet door is unlocked, the sensor triggers an alarm immediately, avoids the safety accidents of foreign matters entering and personnel mis-touching live components caused by the door body not being closed, in the mechanical locking structure, the push rod directly contacts the second fixed frame, high-elasticity rubber material is adopted, wear caused by rigid contact of metal components is avoided, the locking sealing property is improved through the friction force of the rubber, mechanical noise during opening and closing of the door is reduced, safety and durability are considered. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 is a schematic diagram of the three-dimensional structure of the present application Figure One ;

[0022] Figure 2 is a schematic diagram of the three-dimensional structure of the present application Figure Two ;

[0023] Figure 3 is a schematic diagram of the three-dimensional structure of the present application

[0024] Figure 4 is a schematic diagram of the three-dimensional structure of the present application

[0025] Figure 5 is a schematic diagram of the three-dimensional structure of the present application

[0026] Figure 6 is a schematic diagram of the three-dimensional structure of the present application

[0027] Figure 7 is a schematic diagram of the three-dimensional structure of the present application

[0028] Figure 8 is a schematic diagram of the three-dimensional structure of the present application

[0029] Figure 9 is a schematic diagram of the three-dimensional structure of the present application

[0030] Figure 10 is Figure 4 an enlarged structure schematic diagram of A in the present application.

[0031] In the figure: 1, switch cabinet main body; 2, cabinet door; 3, fingerprint password lock; 4, locking structure; 401, first fixed frame; 402, first compression spring; 403, movable rod; 404, second fixed frame; 405, second compression spring; 406, push rod; 407, contact sensor; 5, temperature control structure; 501, air inlet frame; 502, first fan; 503, first air supply pipe; 504, second fan; 505, second air supply pipe; 506, third fan; 507, air outlet frame; 508, fourth fan; 509, temperature sensor; 510, heater; 6, buffer structure; 601, stabilizing frame; 602, damper; 603, third compression spring; 604, bottom plate; 7, switch cabinet structure; 701, first partition; 702, second partition; 703, rubber wrapped coil; 704, flow guide groove; 705, low-voltage control and auxiliary equipment room; 706, switch and protection unit room; 707, cable placement area; 708, drainage control valve; 8, thermal insulation layer; 9, inner layer; 10, spiral wrapper; 11, bolt. DETAILED DESCRIPTION

[0032] The technical solution of the patent will be further described in detail in combination with the specific embodiments.

[0033] As Figures 1-10 shown, the present application provides a technical solution:

[0034] A high-voltage ring network power switch cabinet, comprising a switch cabinet main body 1, a cabinet door 2 is rotatably connected to the center of the front end face of the switch cabinet main body 1, a fingerprint password lock 3 is arranged at the center of the front end face of the cabinet door 2 near one side, a locking structure 4 is arranged at the upper side of the front end face of the switch cabinet main body 1, a temperature control structure 5 is arranged at the center of the side wall of the switch cabinet main body 1, a switch cabinet structure 7 is arranged at the center of the inside of the switch cabinet main body 1, a buffer structure 6 is arranged at the center of the lower end face of the switch cabinet main body 1, a thermal insulation layer 8 is arranged on the inside of the switch cabinet main body 1, and an inner layer 9 is arranged on the inside of the thermal insulation layer 8.

[0035] The switch cabinet structure 7 comprises a first partition plate 701 arranged at the lower center of the inner layer 9, a second partition plate 702 arranged at the upper center of the inner layer 9, a plurality of rubber-wrapped coils 703 arranged horizontally at the front and rear center of the upper end surface of the low-voltage control and auxiliary equipment room 705, an inclined flow guide groove 704 arranged at the center of the upper end surface of the second partition plate 702, a drainage control valve 708 arranged at the lowest end of the flow guide groove 704, a low-voltage control and auxiliary equipment room 705 arranged at the lower center of the inner layer 9, a switch and protection unit room 706 arranged at the upper end of the inner layer 9 and located above the first partition plate 701, a cable placement area 707 arranged at the upper end of the inner layer 9 and located above the second partition plate 702, a spiral winding device 10 arranged at the upper sides and the lower center of the inner layer 9, a bolt 11 arranged at the upper sides and the upper center of the rear end surface of the switch cabinet body 1, and three bolts 11 penetrating the rear end surface of the switch cabinet body 1, the rear end surface of the thermal insulation layer 8, the rear end surface of the inner layer 9, the rear end surface of the cable placement area 707, and the rear end surface of the three spiral winding devices 10 and extending into the three spiral winding devices 10, and the end portions are threadedly connected to the three spiral winding devices 10. The switch cabinet body 1 is made of aluminum-zinc plated steel plate, the thermal insulation layer 8 is made of polyurethane insulation cotton, and the inner layer 9 is made of stainless steel.

[0036] The low-voltage control and auxiliary equipment room 705 and the low-voltage control and auxiliary equipment room 705 provide control signals and auxiliary support for the whole switch cabinet, the switch and protection unit room 706 is the core functional area, integrates the switch unit and the power protection component, is responsible for the on-off control and fault protection of the high-voltage circuit, the cable placement area 707 is fixed by the internal spiral winding device 10 and the bolt 11 to orderly wind and store the high-voltage cable, avoids the short circuit risk caused by the cable disorder, at the same time, the rubber-wrapped coils 703 arranged at the upper end of the low-voltage control and auxiliary equipment room 705 can insulate and fix the position of the cable, reduce the cable wear, the inclined flow guide groove 704 arranged at the upper end of the second partition plate 702 can collect the condensation water generated in the cavity due to temperature difference, the condensation water is gathered to the lowest end along the inclined slope of the flow guide groove 704, and the inclined drainage control valve 708 is opened to facilitate complete drainage of the cabinet, prevent the condensation water from dropping on the equipment or the cable, and avoid the short circuit or corrosion risk.

[0037] The locking structure 4 comprises a first fixed frame 401 arranged on the upper side of the front end face of the switch cabinet body 1. A first compression spring 402 is arranged at the center of the inside of the first fixed frame 401. An activity rod 403 is arranged at the lower end of the first compression spring 402. A second compression spring 405 is arranged at the lower center of the inside of the activity rod 403. A push rod 406 is arranged at the lower center of the inside of the activity rod 403. A second fixed frame 404 is arranged on the upper side of the front end face of the cabinet door 2. The end of the activity rod 403 penetrates through the upper end face of the second fixed frame 404 to the lower end face of the second fixed frame 404. The second fixed frame 404 and the push rod 406 are adapted to each other. A contact sensor 407 is arranged on the upper center of the cabinet door 2. The operator needs to pass the fingerprint identification or password verification to trigger the unlocking signal of the cabinet door 2, which is the first safety barrier to prevent irrelevant personnel from opening. The first compression spring 402 in the first fixed frame 401 is in a natural stretching state. The activity rod 403 penetrates downward through the second fixed frame 404. At the same time, the second compression spring 405 in the activity rod 403 pushes the push rod 406 to tightly clamp the second fixed frame 404, forming a mechanical lock to ensure that the cabinet door 2 is tightly closed. After the fingerprint password lock 3 is verified, the push rod 406 is driven upward to shrink the first compression spring 402. The push rod 406 is shrunk with the second compression spring 405 and separated from the second fixed frame 404. The cabinet door 2 can be normally rotated and opened. The contact sensor 407 on the upper end of the cabinet door 2 detects the adhesion state of the cabinet door 2 and the switch cabinet body 1 in real time. If the cabinet door 2 is not completely closed or is accidentally opened, the contact sensor 407 will trigger an alarm signal to remind the operator to handle it in time to avoid the exposure of internal equipment or the entry of foreign matters.

[0038] The temperature control structure 5 comprises an air inlet frame 501 arranged at the upper center of one side wall of the switch cabinet body 1, one end of the air inlet frame 501 penetrating through the side wall of the switch cabinet body 1, the side wall of the heat preservation layer 8, the side wall of the inner layer 9 and the side wall of the cable placement area 707 to the inside of the cable placement area 707, a first fan 502 arranged at the center of the inside of the air inlet frame 501, a first air conveying pipe 503 arranged at the upper center of the other side wall of the switch cabinet body 1, the two ends of the first air conveying pipe 503 penetrating through the side wall of the switch cabinet body 1, the side wall of the heat preservation layer 8, the side wall of the inner layer 9, the side wall of the cable placement area 707 and the side wall of the switch and protection unit chamber 706 to the inside of the cable placement area 707 and the switch and protection unit chamber 706 respectively, a second fan 504 arranged at the lower side wall of the switch and protection unit chamber 706, a second air conveying pipe 505 arranged at the lower center of the other side wall of the switch cabinet body 1, the two ends of the second air conveying pipe 505 penetrating through the side wall of the switch cabinet body 1, the side wall of the heat preservation layer 8, the side wall of the inner layer 9, the side wall of the switch and protection unit chamber 706 and the side wall of the low-voltage control and auxiliary equipment chamber 705 to the inside of the switch and protection unit chamber 706 and the low-voltage control and auxiliary equipment chamber 705 respectively, and a third fan 506 arranged at the inside of the second air conveying pipe 505 in the low-voltage control and auxiliary equipment chamber 705.

[0039] The switch cabinet body 1 is provided with an air outlet frame 507 at the lower center of the other side, a fourth fan 508 is arranged at the center of the inside of the air outlet frame 507, heaters 510 are arranged at the center of the inner rear wall of the cable placement area 707 on both sides, temperature sensors 509 are arranged at the center of the upper inner wall of the cable placement area 707, the switch and protection unit chamber 706 and the low-voltage control and auxiliary equipment chamber 705, the temperature sensors 509 are arranged on the upper inner wall of the cable placement area 707, the switch and protection unit chamber 706 and the low-voltage control and auxiliary equipment chamber 705, real-time temperature data of each cavity is collected and transmitted to the control module as the basis for temperature control and adjustment, when the temperature of any cavity exceeds the preset threshold value, the first fan 502 in the air inlet frame 501 is started to suck in normal temperature air from the outside, which is directly conveyed to the cable placement area 707, at the same time, the fourth fan 508 in the air outlet frame 507 is started to exhaust the hot air in the cable placement area 707, forming an air inlet and air outlet convection, rapidly reducing the temperature of the cable area, the second fan 504 in the first air conveying pipe 503 is started to convey the normal temperature air in the cable placement area 707 or the external fresh air to the switch and protection unit chamber 706 through the first air conveying pipe 503, at the same time, the hot air flows to the low-voltage control and auxiliary equipment chamber 705 through the second air conveying pipe 505, the low-voltage control and auxiliary equipment chamber 705 is cooled, the third fan 506 in the second air conveying pipe 505 is started to convey the hot air of the switch and protection unit chamber 706 to the low-voltage control and auxiliary equipment chamber 705, and finally the hot air of the switch and protection unit chamber 706 is exhausted together with the hot air of the cavity through the fourth fan 508 of the air outlet frame 507, realizing air circulation cooling of the three cavities.

[0040] When any cavity temperature is lower than the preset threshold, the heater 510 behind the cable placement area 707 is powered to generate heat, directly raising the temperature of the cable area, at the same time, the second fan 504 of the first air duct 503 and the third fan 506 of the second air duct 505 are started, and the hot air in the cable placement area 707 is transported to the switch and protection unit chamber 706 and the low-voltage control and auxiliary equipment chamber 705 through the air duct, realizing the heat circulation of the three cavities and avoiding local low temperature. In this process, the fourth fan 508 of the exhaust rack 507 is suspended to reduce the loss of hot air, and the heat preservation layer 8 plays a heat insulation role at the same time to maintain the stability of the internal temperature.

[0041] The buffer structure 6 includes a stable frame 601 arranged at the center of the lower end face of the switch cabinet body 1, and four dampers 602 are arranged at the lower end face of the stable frame 601. The third compression spring 603 is sleeved outside the four dampers 602, and the bottom plate 604 is arranged at the lower end face of the four dampers 602. The switch cabinet body 1 is connected with the bottom plate 604 through the stable frame 601. The four dampers 602 at the lower end of the stable frame 601 can directly absorb the vibration energy in the vertical direction, such as the impact force generated by the ground bumping and external impact. The third compression spring 603 sleeved outside the damper 602 further assists in shock absorption. When subjected to downward impact force, the third compression spring 603 is contracted to buffer the impact force. When the impact force disappears, the third compression spring 603 resets to drive the stable frame 601 back to the initial position, ensuring that the switch cabinet body 1 is always in a stable state and avoiding the displacement or damage of the internal equipment due to vibration.

[0042] The working principle of the application is that: through the cooperative operation of four core modules of structural partition design, multiple safety control, intelligent temperature control adjustment and stable buffer protection, the safe storage, precise control and reliable protection of high-voltage ring network power are realized, through the three-layer nested structure of the switch cabinet body 1, the heat preservation layer 8 and the inner layer 9, from the outside to the inside, the switch cabinet body 1 made of aluminum-zinc plated steel plate has corrosion resistance and high strength, the heat preservation layer 8 filled with polyurethane insulation cotton reduces the exchange of internal and external temperature difference, maintains the internal stable environment, the inner layer 9 made of stainless steel material prevents oxidation and wear, and protects the internal equipment, the inner layer 9 is further divided into three functionally independent cavities by the first partition plate 701 and the second partition plate 702, realizing the isolation and management of different equipment, the low-voltage control and auxiliary equipment room 705 provides control signals and auxiliary support for the whole switch cabinet, the switch and protection unit room 706 is arranged between the first partition plate 701 and the second partition plate 702 in the core function area, the integrated switch unit and power protection component are responsible for the on-off control and fault protection of the high-voltage circuit, the cable placement area 707 is above the second partition plate 702, the high-voltage cable is orderly wound and stored through the internal spiral winder 10 and the bolt 11, avoiding the short circuit risk caused by cable disorder, at the same time, the rubber wrapping coil 703 on the first partition plate 701 and the upper end of the low-voltage control and auxiliary equipment room 705 can insulate and protect the cable and fix the position, reducing the wear of the cable.

[0043] The operator needs to pass through fingerprint identification or password verification to trigger the unlocking signal of the box door 2, which is the first safety barrier to prevent irrelevant personnel from opening, the first compression spring 402 in the first fixed frame 401 is in a natural extension state, pushing the movable rod 403 downward through the second fixed frame 404, at the same time, the second compression spring 405 in the movable rod 403 pushes the push rod 406 to clamp the second fixed frame 404, forming a mechanical lock to ensure that the box door 2 is tightly closed, when the fingerprint password lock 3 is verified, the second compression spring 405 is retracted by pushing the push rod 406 to move upward, at the same time, the movable rod 403 is retracted with the first compression spring 402, and the box door 2 can be normally rotated and opened, the contact sensor 407 at the upper end of the box door 2 detects the fitting state of the box door 2 and the switch cabinet body 1 in real time, if the box door 2 is not completely closed or is accidentally opened, the contact sensor 407 will trigger an alarm signal to remind the operator to handle it in time to avoid the exposure of internal equipment or the entry of foreign matters.

[0044] The upper inner walls of the cable placement area 707, the switch and protection unit chamber 706, and the low-voltage control and auxiliary equipment chamber 705 are each provided with a temperature sensor 509 to collect real-time temperature data of each cavity and transmit the data to the control module as the basis for temperature control adjustment. When the temperature of any cavity exceeds the preset threshold, the first fan 502 in the air inlet rack 501 is started to draw in normal temperature air from the outside and directly deliver it to the cable placement area 707. At the same time, the fourth fan 508 in the air outlet rack 507 is started to exhaust the hot air in the cable placement area 707, forming an air inlet and exhaust convection to quickly reduce the temperature of the cable area. The switch and protection unit chamber 706 is cooled by starting the second fan 504 in the first air delivery pipe 503 to deliver normal temperature air or external fresh air from the cable placement area 707 to the switch and protection unit chamber 706 through the first air delivery pipe 503. At the same time, the hot air flows to the low-voltage control and auxiliary equipment chamber 705 through the second air delivery pipe 505. The low-voltage control and auxiliary equipment chamber 705 is cooled by starting the third fan 506 in the second air delivery pipe 505 to deliver hot air from the switch and protection unit chamber 706 to the low-voltage control and auxiliary equipment chamber 705. Finally, the hot air in the three cavities is exhausted through the fourth fan 508 of the air outlet rack 507, realizing air circulation cooling of the three cavities.

[0045] When the temperature of any cavity is below the preset threshold, especially the cable placement area 707, low temperature can easily cause the insulation performance of the cable to decrease. The heater 510 on the rear inner wall of the cable placement area 707 is powered to generate heat, directly raising the temperature of the cable area. At the same time, the second fan 504 of the first air delivery pipe 503 and the third fan 506 of the second air delivery pipe 505 are started to deliver the hot air from the cable placement area 707 to the switch and protection unit chamber 706 and the low-voltage control and auxiliary equipment chamber 705 through the air delivery pipes, realizing heat circulation of the three cavities to avoid local low temperature. During this process, the fourth fan 508 of the air outlet rack 507 is paused to reduce the loss of hot air, and the thermal insulation layer 8 simultaneously plays a heat insulation role to maintain stable internal temperature. In addition, the inclined flow guide groove 704 on the upper end of the second partition plate 702 can collect condensed water generated inside the cavity due to temperature difference, such as condensation caused by changes in air humidity during temperature control. The condensed water converges to the lowest end along the inclined slope of the flow guide groove 704 and is completely drained outside the cabinet by opening the inclined drainage control valve 708, preventing the condensed water from dripping onto the equipment or cables and avoiding the risk of short circuit or corrosion.

[0046] The buffer structure 6 is mainly used for relieving the shock impact of the switch cabinet in the process of transportation, installation or use, protecting the stability of the internal precision equipment, the switch cabinet main body 1 is connected with the bottom plate 604 through the stable frame 601, the four dampings 602 at the lower end of the stable frame 601 can directly absorb the vertical vibration energy, such as the impact force generated by the ground bumping and external impact, the third compression spring 603 sleeved outside the damping 602 further assists the shock absorption, when the downward impact force is received, the third compression spring 603 is contracted, the impact force is buffered, when the impact force disappears, the third compression spring 603 resets, drives the stable frame 601 to return to the initial position, ensures that the switch cabinet main body 1 is always in a stable state, and avoids that the internal equipment is displaced or damaged due to vibration.

[0047] In addition, the control mode of the present application is controlled by a controller, the control circuit of the controller can be realized by simple programming of those skilled in the art, the power supply also belongs to the common knowledge in the art, and the present application is used to protect mechanical devices, so the control mode and circuit connection of the present application will not be explained in detail.

[0048] The preferred embodiments of the present application are described in detail above, but the present application is not limited to the above-mentioned embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the purpose of the present application.

Claims

1. A high voltage ring main unit electrical switchgear, characterized by: The utility model provides a kind of switch cabinet, including switch cabinet main body (1), the box door (2) is rotatably connected in the center of the front end face of the switch cabinet main body (1), the box door (2) is equipped with fingerprint lock (3) in the center of the front end face of one side, the locking structure (4) is equipped in the upper side of the front end face of the switch cabinet main body (1), temperature control structure (5) is equipped in the center of the two side walls of the switch cabinet main body (1), switch cabinet structure (7) is equipped in the center of the inside of the switch cabinet main body (1), the buffer structure (6) is equipped in the center of the lower end face of the switch cabinet main body (1), the inside of the switch cabinet main body (1) is equipped with heat preservation layer (8), the inside of the heat preservation layer (8) is equipped with inner layer (9); The switch cabinet structure (7) includes first baffle (701), the first baffle (701) is arranged in the inside of inner layer (9) and is located in the lower center, the second baffle (702) is arranged in the upper center of the inside of inner layer (9), the first baffle (701) and the upper end face of low-voltage control and auxiliary equipment room (705) are arranged with a plurality of rubber wrapped coils (703) in front and rear of the center, the second baffle (702) is equipped with inclined flow guide groove (704) in the center of the upper end face, the lowest end of the flow guide groove (704) is equipped with drainage control valve (708), and the drainage control valve (708) is arranged obliquely.

2. The high-voltage ring main unit switchgear according to claim 1, characterized in that: The inside of the inner layer (9) is equipped with low-voltage control and auxiliary equipment room (705) in the lower center, and the inside of the inner layer (9) is equipped with switch and protection unit room (706) on the upper end of the first baffle (701), the inside of the inner layer (9) is equipped with cable placement area (707) on the upper end of the second baffle (702), the inside of the cable placement area (707) is equipped with spiral winding device (10) on the upper side and the lower center of the two sides, and the rear end face of the switch cabinet main body (1) is equipped with bolt (11) on the upper side and the upper center of the two sides.

3. The high-voltage ring main unit switchgear according to claim 2, characterized in that: One end of the three bolts (11) respectively penetrates the rear end face of the switch cabinet main body (1), the rear end face of the heat preservation layer (8), the rear end face of the inner layer (9), the rear end face of the cable placement area (707) and the rear end face of the three spiral winding devices (10), and penetrates to the inside of the three spiral winding devices (10), and the end is threadedly connected in the inside of the three spiral winding devices (10).

4. The high-voltage ring main unit switchgear according to claim 1, characterized in that: The locking structure (4) includes first fixed frame (401), the first fixed frame (401) is arranged in the upper side of the front end face of the switch cabinet main body (1), the first fixed frame (401) is equipped with first compression spring (402) in the center of the inside, the first compression spring (402) is equipped with movable rod (403) in the lower center of the inside and located in the first fixed frame (401), the movable rod (403) is equipped with second compression spring (405) in the lower center of the inside.

5. The high-voltage ring main unit switchgear according to claim 4, characterized in that: One end of the second compression spring (405) is located inside the center of the movable rod (403) and is provided with a push rod (406), one side wall of the front end face of the cabinet door (2) is provided with a second fixed frame (404) at the upper side, one end of the movable rod (403) penetrates the upper end face of the second fixed frame (404) and reaches the lower end face of the second fixed frame (404), the second fixed frame (404) and the push rod (406) are matched with each other, and the upper end face of the cabinet door (2) is provided with a touch sensor (407) at one side of the center.

6. The high-voltage ring main unit switchgear according to claim 1, characterized in that: The temperature control structure (5) comprises an air inlet frame (501), the air inlet frame (501) is arranged at the upper center of one side wall of the switch cabinet body (1), one end of the air inlet frame (501) penetrates the side wall of the switch cabinet body (1), the side wall of the heat preservation layer (8), the side wall of the inner layer (9) and the side wall of the cable placement area (707) to the inside of the cable placement area (707) in sequence, the first fan (502) is arranged at the inside center of the air inlet frame (501), and the first air conveying pipe (503) is arranged at the upper center of the other side wall of the switch cabinet body (1).

7. The high-voltage ring main unit switchgear according to claim 6, characterized in that The two ends of the first air conveying pipe (503) penetrate the side wall of the switch cabinet body (1), the side wall of the heat preservation layer (8), the side wall of the inner layer (9), the cable placement area (707) and the side wall of the switch and protection unit chamber (706) to the inside of the cable placement area (707) and the switch and protection unit chamber (706) respectively, the second fan (504) is arranged at the inside of the first air conveying pipe (503) at the lower side of the side wall of the switch and protection unit chamber (706), the second air conveying pipe (505) is arranged at the lower center of the other side wall of the switch cabinet body (1), and the two ends of the second air conveying pipe (505) penetrate the side wall of the switch cabinet body (1), the side wall of the heat preservation layer (8), the side wall of the inner layer (9), the side wall of the switch and protection unit chamber (706) and the side wall of the low-voltage control and auxiliary equipment chamber (705) to the inside of the switch and protection unit chamber (706) and the low-voltage control and auxiliary equipment chamber (705) respectively.

8. The high-voltage ring main unit switchgear according to claim 7, characterized in that: The third fan (506) is arranged at the inside of the second air conveying pipe (505) in the low-voltage control and auxiliary equipment chamber (705), the exhaust frame (507) is arranged at the lower center of the other side of the switch cabinet body (1), the fourth fan (508) is arranged at the inside center of the exhaust frame (507), the heaters (510) are arranged at the center of the two sides of the rear inner wall of the cable placement area (707), and the temperature sensors (509) are arranged at the centers of the upper inner walls of the cable placement area (707), the switch and protection unit chamber (706) and the low-voltage control and auxiliary equipment chamber (705).

9. The high-voltage ring main unit switchgear according to claim 1, characterized in that: The buffer structure (6) comprises a stable frame (601), the stable frame (601) is arranged at the center of the lower end face of the switch cabinet body (1), the dampers (602) are arranged at the lower end face of the stable frame (601), the third compression springs (603) are arranged outside the dampers (602), and the bottom plates (604) are arranged at the lower end faces of the dampers (602).

10. The high-voltage ring main unit switchgear according to claim 1, characterized in that: The switch cabinet body (1) is made of aluminized zinc steel plate, the heat preservation layer (8) is made of filled polyurethane heat preservation cotton, and the inner layer (9) is made of stainless steel.

Images