Buried device of high-low voltage switch cabinet

Abstract

The utility model relates to the field of high-low voltage switch cabinets, and discloses a buried device of a high-low voltage switch cabinet, which comprises a pre-buried box, the pre-buried box is arranged outside a switch cabinet body, a U-shaped frame is movably arranged in the pre-buried box, a dehumidifier is fixed on the bottom surface in the pre-buried box, and a water outlet is formed in the U-shaped frame. The input end of the dehumidifier is fixedly connected with one end of an air inlet pipe, an electric heating device is fixed to the inner bottom face of the embedded box, an exhaust pipe is fixed to the inner wall of an exhaust hole, and an exhaust fan is fixed to the bottom face of the box cover. According to the utility model, the heat dissipation of the interior of the pre-embedded box and the switch cabinet body is facilitated, dehumidification processing can be carried out on the basis of the heat dissipation, electrical elements can be prevented from being affected with damp, the performance of insulating materials can be maintained, the risk of faults of the switch cabinet body can be reduced, the switch cabinet body can operate normally, and the service life of the switch cabinet body can be prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of high and low voltage switch cabinets, in particular to an underground device for high and low voltage switch cabinets. Background Art

[0002] As the name implies, high and low voltage switchgear is a device that connects high voltage or low voltage cables. Generally, power supply bureaus and substations use high voltage cabinets, which are then stepped down by transformers to low voltage cabinets, and then to distribution boxes for various electricity users. It is nothing more than an electrical device that assembles some protective devices such as switches and circuit breakers into one. High and low voltage switchgear is a kind of electrical equipment. The external line first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instruments, automatic control, motor magnetic switches, various AC contactors, etc. Some also have high voltage room and low voltage room switchgear, with high voltage busbars, such as power plants, etc. Some are also equipped with low frequency load shedding to protect the main equipment. Some high and low voltage switchgears need to be buried underground, so corresponding underground devices need to be set on the switchgear so that the switchgear can be used normally.

[0003] According to the Chinese patent publication number: CN212343042U, an underground device for a high and low voltage switch cabinet includes an underground mechanism, a mounting mechanism, a driving mechanism, a switch cabinet body and a fixing mechanism. The bottom of the inner wall of the underground mechanism is installed with a mounting mechanism, and a driving mechanism matched therewith is installed on the mounting mechanism. The top of the driving mechanism is provided with a switch cabinet body, and fixing mechanisms are provided on the left and right sides of the bottom of the driving mechanism and at positions corresponding to the switch cabinet body. The underground mechanism includes an underground shell and a protective cover, and the top of the underground shell is provided with a protective cover matched therewith.

[0004] In the above scheme, the switch cabinet body is placed inside the underground shell, and then the underground mechanism is set under the ground surface, which leads to the following disadvantages: since the underground shell is underground, the internal moisture is too heavy. However, when the underground device is in use, it cannot dehumidify the inside of the shell, causing the electrical components to become damp and the insulation performance to decrease, resulting in failure and damage of the switch cabinet body. Utility Model Content

[0005] The purpose of the utility model is to provide an underground device for high and low voltage switch cabinets to solve the problem that the underground shell is located underground and the internal moisture is too heavy. However, when the underground device is in use, the inside of the shell cannot be dehumidified, so that the electrical components are damp, the insulation performance is reduced, and the switch cabinet body fails and is damaged.

[0006] In order to achieve the above-mentioned utility model object, the utility model adopts the following technical scheme: an underground device for a high and low voltage switch cabinet, comprising an embedded box, the embedded box is arranged outside the switch cabinet body, a U-shaped frame is movably arranged inside the embedded box, the switch cabinet body is placed in the U-shaped frame, a box cover is arranged above the U-shaped frame, a PLC controller is fixed on the top surface of the box cover, two supporting columns are fixed on the bottom surface of the box cover, and the bottom ends of the two supporting columns are respectively fixedly connected to the top surface of the U-shaped frame, an air inlet hole is opened on the right side of the outer wall of the embedded box, an air inlet pipe is fixed on the inner wall of the air inlet hole, a dehumidifier is fixed on the inner bottom surface of the embedded box, the input end of the dehumidifier is fixedly connected to one end of the air inlet pipe, an electric heating device is fixed on the inner bottom surface of the embedded box, the electric heating device is electrically connected to the PLC controller, an exhaust hole is opened on the top surface of the box cover, an exhaust pipe is fixed on the inner wall of the exhaust hole, an exhaust fan is fixed on the bottom surface of the box cover, and the exhaust fan is electrically connected to the PLC controller.

[0007] Preferably, a mounting hole is provided on the top surface of the box cover, a temperature sensor is fixed on the inner wall of the mounting hole, the temperature sensor is electrically connected to the PLC controller, and a fixing hole is provided on the top surface of the box cover, a humidity sensor is fixed on the inner wall of the fixing hole, and the humidity sensor is electrically connected to the PLC controller.

[0008] Preferably, an anti-skid pad is fixed to the inner bottom surface of the U-shaped frame, and the top surface of the anti-skid pad is in contact with the bottom surface of the switch cabinet body.

[0009] Preferably, support plates are fixed on the left and right sides of the inner wall of the embedded box, hydraulic push rods are fixed on the top surfaces of the two support plates, and one end of the telescopic rods of the two hydraulic push rods is fixedly connected to the bottom surface of the U-shaped frame.

[0010] Preferably, two slide grooves are respectively provided on the front side and the rear side of the inner wall of the embedded box, and two slide rods are respectively fixed on the front side and the rear side of the outer wall of the U-shaped frame, and the two slide rods are respectively slidably arranged in the two slide grooves.

[0011] Preferably, a sealing gasket is fixed to the bottom surface of the box cover.

[0012] Compared with the prior art, the underground device of a high and low voltage switch cabinet adopting the above technical solution has the following beneficial effects:

[0013] 1. During use, it is beneficial to dissipate heat inside the embedded box and the switch cabinet body, and can perform dehumidification treatment on its basis, which is beneficial to prevent electrical components from getting damp, helps to maintain the performance of insulating materials, reduces the risk of switch cabinet body failure, enables the switch cabinet body to operate normally, and extends the life of the switch cabinet body;

[0014] 2. During use, the temperature sensor is used to monitor the temperature inside the embedded box, so as to control the heating power of the electric heating device according to the real-time temperature, and to dehumidify the inside of the embedded box without affecting the heat dissipation. The humidity sensor is used to monitor the humidity inside the embedded box, and then transmit the information to the PLC controller to control the speed of the exhaust fan. The anti-slip pad is used to provide a stable support to prevent the switch cabinet body from sliding or shaking inside the U-shaped frame, thereby improving the stability of the switch cabinet body;

[0015] 3. During use, it is convenient for the staff to maintain the switch cabinet. The slide groove and the slide rod can help limit the U-shaped frame to prevent the U-shaped frame from shifting, thereby improving the stability of the U-shaped frame and the switch cabinet during the lifting process. The sealing gasket can prevent the humid environment from invading the switch cabinet, making the inside of the switch cabinet dry, improving the protection performance of the switch cabinet, and preventing dust, mud and other pollutants from entering the switch cabinet, keeping the switch cabinet clean, and reducing the risk of switch cabinet failure. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional schematic diagram of an embodiment.

[0017] Figure 2 It is a schematic diagram of an explosion of an embodiment.

[0018] Figure 3 It is an exploded schematic diagram of the U-shaped frame and the sliding rod in the embodiment.

[0019] Figure 4 For example Figure 2 Enlarged schematic diagram at point A in the middle.

[0020] In the figure: 1. switch cabinet body; 2. embedded box; 3. U-shaped frame; 4. box cover; 5. support column; 6. air inlet; 7. air inlet pipe; 8. dehumidifier; 9. electric heating device; 10. exhaust hole; 11. exhaust pipe; 12. exhaust fan; 13. installation hole; 14. temperature sensor; 15. fixing hole; 16. humidity sensor; 17. anti-slip mat; 18. support plate; 19. hydraulic push rod; 20. slide groove; 21. slide rod; 22. sealing pad. DETAILED DESCRIPTION

[0021] The preferred embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.

[0022] like Figure 1-Figure 4As shown, an underground device for a high and low voltage switch cabinet comprises an embedded box 2, wherein the embedded box 2 is arranged outside the switch cabinet body 1, a U-shaped frame 3 is movably arranged inside the embedded box 2, the switch cabinet body 1 is placed in the U-shaped frame 3, a box cover 4 is arranged above the U-shaped frame 3, a PLC controller is fixed on the top surface of the box cover 4, two support columns 5 are fixed on the bottom surface of the box cover 4, the bottom ends of the two support columns 5 are respectively fixedly connected to the top surface of the U-shaped frame 3, and a right side of the outer wall of the embedded box 2 is provided. An air inlet hole 6, an air inlet pipe 7 is fixed to the inner wall of the air inlet hole 6, a dehumidifier 8 is fixed to the inner bottom surface of the embedded box 2, the input end of the dehumidifier 8 is fixedly connected to one end of the air inlet pipe 7, an electric heating device 9 is fixed to the inner bottom surface of the embedded box 2, the electric heating device 9 is electrically connected to the PLC controller, an exhaust hole 10 is opened on the top surface of the box cover 4, an exhaust pipe 11 is fixed to the inner wall of the exhaust hole 10, an exhaust fan 12 is fixed to the bottom surface of the box cover 4, and the exhaust fan 12 is electrically connected to the PLC controller.

[0023] In use, air is introduced into the embedded box 2 through the air inlet pipe 7 and the air inlet hole 6, and the heat inside the embedded box 2 is discharged through the exhaust fan 12, which effectively dissipates the heat inside the embedded box 2 and improves the heat dissipation effect. The dehumidifier 8 is used to dehumidify the air inside the embedded box 2, which is conducive to reducing the moisture in the air. Then, the electric heating device 9 is used to heat the air inside the embedded box 2, so that the water on the switch cabinet body 1 becomes steam, and finally, under the action of the exhaust fan 12, it is discharged from the exhaust hole 10 and the exhaust pipe 11. It is conducive to heat dissipation of the embedded box 2 and the switch cabinet body 1, and can perform dehumidification treatment on its basis, which is conducive to preventing electrical components from getting damp, helping to maintain the performance of the insulating material, reducing the risk of failure of the switch cabinet body 1, allowing the switch cabinet body 1 to operate normally, and extending the life of the switch cabinet body 1.

[0024] like Figure 1-Figure 4 As shown, a mounting hole 13 is provided on the top surface of the box cover 4, a temperature sensor 14 is fixed to the inner wall of the mounting hole 13, and the temperature sensor 14 is electrically connected to the PLC controller. A fixing hole 15 is provided on the top surface of the box cover 4, a humidity sensor 16 is fixed to the inner wall of the fixing hole 15, and the humidity sensor 16 is electrically connected to the PLC controller.

[0025] In use, the temperature sensor 14 is used to monitor the temperature inside the embedded box 2, so as to control the heating power of the electric heating device 9 according to the real-time temperature, and to dehumidify the inside of the embedded box 2 without affecting the heat dissipation. The humidity sensor 16 is used to monitor the humidity inside the embedded box 2, and then transmit the information to the PLC controller to control the speed of the exhaust fan 12.

[0026] like Figure 1-Figure 4As shown, an anti-skid pad 17 is fixed to the inner bottom surface of the U-shaped frame 3, and the top surface of the anti-skid pad 17 is in contact with the bottom surface of the switch cabinet body 1. Support plates 18 are fixed to the left and right sides of the inner wall of the embedded box 2, and hydraulic push rods 19 are fixed to the top surfaces of the two support plates 18, respectively. One end of the telescopic rods of the two hydraulic push rods 19 is fixedly connected to the bottom surface of the U-shaped frame 3.

[0027] In use, the anti-skid pad 17 is used to provide a stable support to prevent the switch cabinet body 1 from sliding or shaking inside the U-shaped frame 3, thereby improving the stability of the switch cabinet body 1. The support plate 18 and the hydraulic push rod 19 are used to adjust the U-shaped frame 3, thereby adjusting the switch cabinet body 1. When the staff needs to maintain the switch cabinet body 1, the hydraulic push rod 19 is started to move the switch cabinet body 1 upward, and the box cover 4 is driven to move upward at the same time, and then the switch cabinet body 1 can be taken out of the U-shaped frame 3. After the maintenance of the switch cabinet body 1 is completed, the switch cabinet body 1 is placed in the U-shaped frame 3, and then the hydraulic push rod 19 is started to move the U-shaped frame 3, the switch cabinet body 1, and the box cover 4 are moved downward until the box cover 4 is closed with the embedded box 2, and the switch cabinet body 1 is placed, so that the staff can maintain the switch cabinet body 1.

[0028] like Figure 1-Figure 4 As shown, two slide grooves 20 are respectively provided on the front and rear sides of the inner wall of the embedded box 2, and two slide rods 21 are respectively fixed on the front and rear sides of the outer wall of the U-shaped frame 3. The two slide rods 21 are respectively slidably arranged in the two slide grooves 20, and a sealing gasket 22 is fixed on the bottom surface of the box cover 4.

[0029] In use, the slide groove 20 and the slide bar 21 are used to limit the U-shaped frame 3 and prevent the U-shaped frame 3 from deflecting, thereby improving the stability of the U-shaped frame 3 and the switch cabinet body 1 during the lifting process. The sealing gasket 22 is used to prevent the humid environment from invading the switch cabinet body 1, so that the inside of the switch cabinet body 1 is dry, and the protective performance of the switch cabinet body 1 is improved. At the same time, it is helpful to prevent dust, mud and other pollutants from entering the inside of the switch cabinet body 1, keep the switch cabinet body 1 clean, and reduce the risk of failure of the switch cabinet body 1.

[0030] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An underground device for a high- and low-voltage switch cabinet, comprising an embedded box (2), wherein the embedded box (2) is arranged outside the switch cabinet body (1), characterized in that: A U-shaped frame (3) is movably arranged inside the embedded box (2), the switch cabinet body (1) is placed in the U-shaped frame (3), a box cover (4) is arranged above the U-shaped frame (3), a PLC controller is fixed on the top surface of the box cover (4), two support columns (5) are fixed on the bottom surface of the box cover (4), the bottom ends of the two support columns (5) are respectively fixedly connected to the top surface of the U-shaped frame (3), an air inlet hole (6) is opened on the right side of the outer wall of the embedded box (2), an air inlet pipe (7) is fixed on the inner wall of the air inlet hole (6), and the A dehumidifier (8) is fixed to the inner bottom surface of the embedded box (2), the input end of the dehumidifier (8) is fixedly connected to one end of the air inlet pipe (7), an electric heating device (9) is fixed to the inner bottom surface of the embedded box (2), the electric heating device (9) is electrically connected to the PLC controller, an exhaust hole (10) is opened on the top surface of the box cover (4), an exhaust pipe (11) is fixed to the inner wall of the exhaust hole (10), an exhaust fan (12) is fixed to the bottom surface of the box cover (4), and the exhaust fan (12) is electrically connected to the PLC controller.

2. The underground device for high and low voltage switch cabinet according to claim 1 is characterized in that: The top surface of the box cover (4) is provided with a mounting hole (13), the inner wall of the mounting hole (13) is fixed with a temperature sensor (14), the temperature sensor (14) is electrically connected to the PLC controller, the top surface of the box cover (4) is provided with a fixing hole (15), the inner wall of the fixing hole (15) is fixed with a humidity sensor (16), the humidity sensor (16) is electrically connected to the PLC controller.

3. The underground device for high and low voltage switch cabinet according to claim 2 is characterized in that: An anti-skid pad (17) is fixed to the inner bottom surface of the U-shaped frame (3), and the top surface of the anti-skid pad (17) is in contact with the bottom surface of the switch cabinet body (1).

4. The underground device for high and low voltage switch cabinet according to claim 3 is characterized in that: Support plates (18) are fixed on the left and right sides of the inner wall of the embedded box (2), respectively; hydraulic push rods (19) are fixed on the top surfaces of the two support plates (18), and one end of the telescopic rods of the two hydraulic push rods (19) is fixedly connected to the bottom surface of the U-shaped frame (3).

5. The underground device for high and low voltage switch cabinet according to claim 4 is characterized in that: Two slide grooves (20) are respectively provided on the front side and the rear side of the inner wall of the embedded box (2), and two slide rods (21) are respectively fixed on the front side and the rear side of the outer wall of the U-shaped frame (3), and the two slide rods (21) are respectively slidably arranged in the two slide grooves (20).

6. The underground device for high and low voltage switch cabinet according to claim 1, characterized in that: A sealing gasket (22) is fixed to the bottom surface of the box cover (4).

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