Power distribution cabinet of buried transformer substation

Abstract

The utility model discloses a power distribution cabinet of a buried transformer station, which relates to the field of power distribution cabinets and comprises a buried outer box, a box cover is arranged in the middle of the top end of the buried outer box, an opening-assisting groove is arranged at the front and middle position of the top end of the buried outer box in a penetrating manner, and a plurality of outer drainage grooves are arranged at the two sides of the top end of the buried outer box in a penetrating manner. A plurality of heat dissipation grooves are formed in the bottom face and the two sides of the box cover in a penetrating mode, inner drainage grooves are formed in the positions, close to the front and rear ends and the two sides, of the top face of the buried outer box, sealing strips are fixedly installed on the positions, close to the front and rear ends and the two sides, of the top face of the buried outer box and located on the inner sides of the inner drainage grooves, and sealing grooves are formed in the positions, close to the front and rear ends and the two sides, of the bottom face of the box cover in a penetrating mode. By arranging the heat dissipation grooves and the outer drainage grooves, heat dissipation is guaranteed, meanwhile, water is prevented from entering the buried outer box through the heat dissipation grooves, meanwhile, the sealing strips, the sealing grooves, the inner water grooves and the outer water grooves are arranged, water is prevented from entering the buried outer box, and water accumulation is avoided.

Description

Technical Field

[0001] The utility model relates to the field of power distribution cabinets, in particular to a power distribution cabinet for an underground substation. Background Art

[0002] The underground distribution box is a new type of distribution box. After installation, it does not occupy road space, so it will not affect the flow of people and vehicles. However, since the underground outer box is buried underground during installation and the box cover is flush with the ground, the box body and box cover of the underground outer box need better corrosion resistance and pressure resistance, and the required preparation materials are also more expensive. This solution specifically relates to the distribution cabinet of the underground substation; since the distribution cabinet of the existing underground substation is buried underground, when the heat dissipation holes are used to dissipate heat, rainwater can easily penetrate into the interior of the underground outer box through the heat dissipation holes and the gap between the underground outer box and the box cover, causing the electrical components inside the underground outer box to become damp, affecting the service life of the internal electrical components, and even causing damage to the electrical components. Utility Model Content

[0003] The main purpose of the utility model is to provide a power distribution cabinet for an underground substation, which can effectively solve the problems in the background technology.

[0004] In order to achieve the above purpose, the technical solution adopted by the utility model is:

[0005] A power distribution cabinet for an underground substation comprises an underground outer box, a box cover is centrally arranged at the top of the underground outer box, an opening-assisting groove is provided at a front and central position through the top of the underground outer box, a plurality of external drainage grooves are provided through the top of the underground outer box on both sides, a plurality of heat dissipation grooves are provided through the bottom surface and both sides of the box cover, an inner drainage groove is provided on the top surface of the underground outer box near the front and rear ends and on both sides, sealing strips are fixedly installed on the top surface of the underground outer box near the front and rear ends and on both sides and on the inner sides of the inner drainage grooves, and a sealing groove is provided through the bottom surface of the box cover near the front and rear ends and on both sides.

[0006] As a further solution of the utility model, a bottom drainage outlet is centrally provided through the bottom box body of the buried outer box.

[0007] As a further solution of the utility model, a junction box is fixedly installed inside the underground outer box near the front end, and a cable inlet and outlet is opened in the center of the back box body that penetrates the underground outer box.

[0008] As a further solution of the utility model, a power distribution box is fixedly installed in the center of the bottom end of the box cover, the top surface of the box cover is flush with the top surface of the buried outer box, and the two sides of the box cover are movably connected to the buried outer box by a rotating shaft at the rear end.

[0009] As a further solution of the utility model, the external drainage groove and the heat dissipation groove are on the same straight line, the cross-section of the heat dissipation groove is set in an "L" shape, and the horizontal section of the heat dissipation groove and the external drainage groove are both inclined toward the outside of the buried outer box.

[0010] As a further solution of the present invention, the positions of the sealing strip and the sealing groove correspond to each other, and the sealing strip and the sealing groove are clamped together, the bottom end of the sealing strip is flush with the top end of the inner drainage groove, the inner drainage groove is located directly below the joint between the box cover and the buried outer box, and the inner drainage groove is inclined toward the outside of the buried outer box.

[0011] Compared with the prior art, the utility model has the following beneficial effects:

[0012] The utility model provides a heat dissipation groove and an external drainage groove, and utilizes the heat dissipation groove to connect the buried outer box with the external environment, so that the electrical components inside the buried outer box can dissipate heat during operation. At the same time, the heat dissipation groove and the external drainage groove are both inclinedly arranged. When water falls on the top of the buried outer box and the box cover, the water is drained through the external drainage groove, so that heat dissipation is ensured while preventing water from entering the buried outer box through the heat dissipation groove. At the same time, sealing strips, sealing grooves, and internal and external water grooves are provided. When water seeps into the gap between the box cover and the buried outer box, the sealing strips and the sealing grooves are used to block water, so that the water is prevented from entering the buried outer box, and the internal drainage groove is used to drain the water to the outside of the buried outer box to avoid water accumulation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is a schematic diagram of the overall structure of a power distribution cabinet of an underground substation of the utility model;

[0014] Figure 2 This is a demonstration diagram of a box cover in an open state in a distribution cabinet of an underground substation of the utility model;

[0015] Figure 3 This is a front cross-sectional view of an underground outer box and a box cover of a power distribution cabinet of an underground substation of the utility model;

[0016] Figure 4 The utility model is a top view of an underground outer box in a power distribution cabinet of an underground substation.

[0017] In the figure: 1. Underground outer box; 2. Box cover; 3. Opening aid groove; 4. External drainage groove; 5. Heat dissipation groove; 6. Bottom drainage port; 7. Cable inlet and outlet; 8. Junction box; 9. Sealing strip; 10. Power distribution box; 11. Sealing groove; 12. Internal drainage groove. DETAILED DESCRIPTION

[0018] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention is further described below in conjunction with specific implementation methods.

[0019] like Figure 1-Figure 4 As shown, a distribution cabinet of an underground substation includes an underground outer box 1, a box cover 2 is centrally arranged at the top of the underground outer box 1, an opening-assisting groove 3 is opened at a front and central position through the top of the underground outer box 1, a plurality of external drainage grooves 4 are opened through the top of the underground outer box 1 on both sides, a plurality of heat dissipation grooves 5 are opened through the bottom surface and both sides of the box cover 2, an inner drainage groove 12 is opened on the top surface of the underground outer box 1 near the front and rear ends and on both sides, a sealing strip 9 is fixedly installed on the top surface of the underground outer box 1 near the front and rear ends and on both sides and on the inner side of the inner drainage groove 12, and a sealing groove 11 is opened through the bottom surface of the box cover 2 near the front and rear ends and on both sides.

[0020] A bottom drain port 6 is provided in the center of the bottom box body of the buried outer box 1. By providing the bottom drain port 6, when water accidentally enters the inside of the buried outer box 1, it is convenient to drain the water out of the buried outer box 1.

[0021] A junction box 8 is fixedly installed at the front end of the underground outer box 1, and a cable inlet and outlet 7 is opened in the center of the back box body of the underground outer box 1. The cable inlet and outlet 7 cooperates with the junction box 8 to facilitate wiring between the distribution cabinet of the underground substation and the outside world.

[0022] A power distribution box 10 is fixedly installed in the center of the bottom end of the box cover 2, the top surface of the box cover 2 is flush with the top surface of the buried outer box 1, and the two sides of the box cover 2 are movably connected to the buried outer box 1 by a rotating shaft at the rear end. The power distribution box 10 is provided to facilitate the distribution of access power.

[0023] The outer drainage groove 4 and the heat dissipation groove 5 are on the same straight line, the cross-section of the heat dissipation groove 5 is set in an "L" shape, and the horizontal section of the heat dissipation groove 5 and the outer drainage groove 4 are both inclined toward the outside of the buried outer box 1. The heat dissipation groove 5 is connected to the buried outer box 1 with the external environment, which is beneficial to the heat dissipation of the electrical components inside the buried outer box 1 when working. At the same time, the outer drainage groove 4 is set to facilitate the discharge of water that falls into the horizontal section of the heat dissipation groove 5.

[0024] The positions of the sealing strip 9 and the sealing groove 11 correspond to each other, and the sealing strip 9 is snap-fitted with the sealing groove 11. The bottom end of the sealing strip 9 is flush with the top end of the inner drainage groove 12. The inner drainage groove 12 is located directly below the joint between the box cover 2 and the buried outer box 1, and the inner drainage groove 12 is inclined toward the outside of the buried outer box 1. When the box cover 2 is closed, the sealing strip 9 is snapped into the sealing groove 11. When water falls onto the box cover 2 and seeps into the gap between the box cover 2 and the buried outer box 1, it is discharged through the inner drainage groove 12 to prevent water from seeping into the interior of the buried outer box 1 through the gap.

[0025] It should be noted that the utility model is a power distribution cabinet for an underground substation. When in use, first lift the box cover 2 through the auxiliary opening slot 3 and open it, then connect the cable through the junction box 8 and the cable inlet and outlet 7, and connect the power distribution box 10 at the same time. After the wiring is completed, cover the box cover 2, and then install the power distribution cabinet of the underground substation on the installation surface, so that the top surface of the underground outer box 1 is flush with the installation surface;

[0026] After the distribution cabinet of the buried substation is in operation, the buried outer box 1 is connected to the environment outside the box through the heat dissipation groove 5, so as to facilitate the heat dissipation of the electrical components inside the buried outer box 1. If water falls on the top of the buried outer box 1 and the box cover 2, it will be discharged after being guided through the external drainage groove 4. When water penetrates into the gap between the box cover 2 and the buried outer box 1, since the sealing strip 9 is engaged with the sealing groove 11, and the height of the sealing strip 9 is higher than the height of the internal drainage groove 12, the water that penetrates into the gap is discharged through the internal drainage groove 12 to prevent water from entering the buried outer box 1. When water accidentally enters the interior of the buried outer box 1, it is discharged to the outside of the buried outer box 1 through the bottom drainage port 6 to prevent the electrical components inside the buried outer box 1 from getting damp.

[0027] The above shows and describes the basic principle and main features of the utility model and the advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only for explaining the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection claimed by the utility model is defined by the attached claims and their equivalents.

Claims

1. A power distribution cabinet for an underground substation, characterized in that: The invention comprises an underground outer box (1), wherein a box cover (2) is arranged at the center of the top of the underground outer box (1), an opening assistance groove (3) is provided through the top of the underground outer box (1) at a front and center position, a plurality of external drainage grooves (4) are provided through the top of the underground outer box (1) at both sides, a plurality of heat dissipation grooves (5) are provided through the bottom surface and both sides of the box cover (2), an internal drainage groove (12) is provided on the top surface of the underground outer box (1) at the front and rear ends and both sides, a sealing strip (9) is fixedly installed on the top surface of the underground outer box (1) at the front and rear ends and both sides and on the inner side of the internal drainage groove (12), and a sealing groove (11) is provided through the bottom surface of the box cover (2) at the front and rear ends and both sides.

2. The power distribution cabinet of an underground substation according to claim 1, characterized in that: A bottom drainage outlet (6) is centrally provided on the bottom box body that penetrates the buried outer box (1).

3. The power distribution cabinet of an underground substation according to claim 1, characterized in that: A junction box (8) is fixedly installed inside the underground outer box (1) near the front end, and a cable inlet and outlet (7) is provided in the center of the back box body penetrating through the underground outer box (1).

4. The power distribution cabinet of an underground substation according to claim 1, characterized in that: A power distribution box (10) is fixedly mounted at the center of the bottom end of the box cover (2), the top surface of the box cover (2) is flush with the top surface of the underground outer box (1), and both sides of the box cover (2) are movably connected to the underground outer box (1) at the rear end via a rotating shaft.

5. The power distribution cabinet of an underground substation according to claim 1, characterized in that: The external drainage groove (4) and the heat dissipation groove (5) are located on the same straight line, the cross section of the heat dissipation groove (5) is arranged in an "L" shape, and the horizontal section of the heat dissipation groove (5) and the external drainage groove (4) are arranged to be inclined toward the outside of the buried outer box (1).

6. The power distribution cabinet of an underground substation according to claim 1, characterized in that: The positions of the sealing strip (9) and the sealing groove (11) correspond to each other, and the sealing strip (9) and the sealing groove (11) are snap-fitted, the bottom end of the sealing strip (9) is flush with the top end of the inner drainage groove (12), the inner drainage groove (12) is located directly below the joint between the box cover (2) and the buried outer box (1), and the inner drainage groove (12) is arranged in an inclined direction toward the outside of the buried outer box (1).

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