Box transformer substation shell with grounding structure

Abstract

The utility model discloses a box-type transformer substation shell with a grounding structure, which relates to the technical field of box-type transformers and comprises a box-type transformer substation frame, a bottom plate is fixedly connected to the lower end of the box-type transformer substation frame, and a plastic outer frame is mounted on one side of the bottom plate. By arranging a limiting frame and a side clamping plate, when a grounding line is connected, the line can be placed between the side clamping plate and the limiting frame, then the limiting frame and the side clamping plate are pressed, and a grounding metal plate is inserted into an inner groove, so that the grounding metal plate can be inserted into the inner groove, and the electric shock risk is reduced. The side clamping plate and the limiting frame are installed in the limiting clamping groove, in this way, limiting is conducted through the limiting end disc, installation is convenient, the extrusion block is arranged and used for pushing the metal end of a circuit, the metal end is made to make close contact with the side plate, and the conditions of poor contact and open circuit are avoided.

Description

Technical Field

[0001] The utility model relates to the technical field of box-type transformers, in particular to a box-type transformer shell with a grounding structure. Background Technique

[0002] A box-type transformer (usually abbreviated as "box transformer") integrates a traditional transformer in a box-type shell, and has the advantages of small volume, light weight, low noise, low loss, and high reliability. It is widely used in residential areas, commercial centers, stations, airports, factories, mines, enterprises, hospitals, schools and other places.

[0003] For example, Chinese Patent CN210866582U discloses a box-type transformer shell with a novel grounding structure, including a grounding wire, a terminal joint, a screw hole, and a grounding structure. The grounding structure includes a mounting plate, a positioning post, a screw rod, and a pressing plate.

[0004] However, in the prior art, the grounding method of the box-type transformer is to directly connect the grounding line to the shell. Since the shell is made of metal and is in contact with the ground, when the box-type transformer shell or the internal grounding line has problems such as poor contact or disconnection, due to the direct connection between the line and the shell, when a worker touches the shell during the maintenance process, electric shock will occur, resulting in low safety. Summary of the Utility Model

[0005] The purpose of the utility model is to solve the problem that in the prior art, the grounding method of the box-type transformer is to directly connect the grounding line to the shell. Since the shell is made of metal and is in contact with the ground, when the box-type transformer shell or the internal grounding line has problems such as poor contact or disconnection, due to the direct connection between the line and the shell, when a worker touches the shell during the maintenance process, electric shock will occur, resulting in low safety, and a box-type transformer shell with a grounding structure is proposed.

[0006] To achieve the above object, the utility model adopts the following technical solutions: A box-type transformer housing with a grounding structure includes a box-type transformer frame. A bottom plate is fixedly connected to the lower end of the box-type transformer frame. A plastic outer frame is installed on one side of the bottom plate. The grounding mechanism includes the plastic outer frame. A limiting end plate is fixedly connected to the upper end of the plastic outer frame. Both sides of the limiting end plate are fixedly connected to the bottom plate through bolts provided. A grounding metal plate is arranged inside the plastic outer frame. A limiting clamping groove is formed inside the limiting end plate. A limiting frame is slidably connected inside the limiting clamping groove. A side plate is fixedly connected to the upper end of the grounding metal plate. The side plate is fixedly connected to the limiting frame. A side clamping plate is arranged on one side of the limiting frame. A pressing block is fixedly connected to the lower end of one side of the side clamping plate. The upper end surface of the grounding metal plate is in contact with the lower surface of the limiting frame, and the width of the inner groove of the limiting frame is smaller than the thickness of the grounding metal plate, that is, the limiting frame can push the grounding metal plate to move. Through the arrangement of the pressing block, the metal end of the circuit is pushed to make the metal end in close contact with the side plate, avoiding the situations of poor contact and open circuit, and increasing the use safety.

[0007] Preferably, a top cover is fixedly connected to the upper end of the box-type transformer frame, and an opening and closing door is installed inside the box-type transformer frame.

[0008] Preferably, first lifting rings are fixedly connected to both sides of the middle part below both sides of the box-type transformer frame, and second lifting rings are fixedly connected to both sides of the top cover.

[0009] Preferably, an inner groove is formed inside the plastic outer frame. The grounding metal plate is slidably connected to the inner groove, and the limiting clamping groove is communicated with the inner groove.

[0010] Preferably, side grooves are formed on the lower end of one side of the side clamping plate and on one side of the limiting frame. Hinges are fixedly connected inside the side grooves. The side clamping plate and the limiting frame are rotatably connected through the hinges.

[0011] Preferably, an end block is fixedly connected to the upper end of the side clamping plate, and a wire groove is formed above one side of the side clamping plate.

[0012] Compared with the prior art, the advantages and positive effects of the utility model are as follows:

[0013] 1. In the present utility model, through the setting of the plastic outer frame and the limiting end plate, the current is separated to avoid the current passing through the box transformer frame, thereby reducing the risk of electric shock and ensuring the safety of maintenance workers during the inspection and repair of the box transformer. Through the setting of the limiting frame and the side clamping plate, when connecting the grounding line, the line can be placed between the side clamping plate and the limiting frame, and then the limiting frame and the side clamping plate are pressed, the grounding metal plate is inserted into the inner groove, and the side clamping plate and the limiting frame are installed into the limiting clamping groove. In this way, through the limitation of the limiting end plate, the installation is relatively convenient. Through the setting of the extrusion block, it is used to push the metal end of the line, so that the metal end is in close contact with the side plate, avoiding the situations of poor contact and open circuit, and increasing the use safety.

[0014] 2. In the present utility model, through the setting of the wire limiting groove, the grounding line is restricted, which is convenient for the connection of the grounding line. Through the setting of the hinge, the side clamping plate is connected in a rotating manner, so that when the grounding line is squeezed and restricted, it is squeezed in a lever manner, and the connection is more convenient. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 Schematic diagram of the three-dimensional structure of a box transformer housing with a grounding structure proposed by the present utility model Figure 1 ;

[0016] Figure 2 Schematic diagram of the three-dimensional structure of a box transformer housing with a grounding structure proposed by the present utility model Figure 2 ;

[0017] Figure 3 A box transformer housing with a grounding structure proposed by the present utility model Figure 2 Schematic diagram of the enlarged structure of area A;

[0018] Figure 4 Schematic diagram of the three-dimensional structure of the grounding mechanism in a box transformer housing with a grounding structure proposed by the present utility model;

[0019] Figure 5 Exploded view of the grounding mechanism in a box transformer housing with a grounding structure proposed by the present utility model.

[0020] Legend: 1. Box transformer frame; 2. Top cover; 3. Opening and closing door; 4. First lifting ring; 5. Second lifting ring; 6. Bottom plate; 7. Plastic outer frame; 8. Grounding metal plate; 9. Limiting end plate; 10. Limiting frame; 11. Side clamping plate; 12. Wire limiting groove; 13. End block; 14. Side groove; 15. Hinge; 16. Extrusion block; 17. Limiting clamping groove; 18. Inner groove; 19. Side plate. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0021] In order to more clearly understand the above-mentioned objects, features, and advantages of the present utility model, the following further describes the present utility model in conjunction with the accompanying drawings and embodiments. It should be noted that, without conflict, the embodiments of the present application and the features in the embodiments can be combined with each other.

[0022] In the following description, many specific details are set forth in order to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Therefore, the present utility model is not limited to the limitations of the specific embodiments disclosed in the following specification.

[0023] Embodiment 1: As Figure 1 - Figure 5 shown, the present utility model provides a box-type transformer housing with a grounding structure, including a box-type transformer frame 1. A bottom plate 6 is fixedly connected to the lower end of the box-type transformer frame 1. A plastic outer frame 7 is installed on one side of the bottom plate 6. The grounding mechanism includes the plastic outer frame 7. A limiting end plate 9 is fixedly connected to the upper end of the plastic outer frame 7. Both sides of the limiting end plate 9 are fixedly connected to the bottom plate 6 through bolts provided. A grounding metal plate 8 is arranged inside the plastic outer frame 7. A limiting clamping groove 17 is opened inside the limiting end plate 9. A limiting frame 10 is slidably connected inside the limiting clamping groove 17. A side plate 19 is fixedly connected to the upper end of the grounding metal plate 8. The side plate 19 is fixedly connected to the limiting frame 10. A side clamping plate 11 is arranged on one side of the limiting frame 10. An extrusion block 16 is fixedly connected to the lower end of one side of the side clamping plate 11. The upper end surface of the grounding metal plate 8 is in contact with the lower surface of the limiting frame 10, and the width of the inner slot of the limiting frame 10 is smaller than the thickness of the grounding metal plate 8, that is, the limiting frame 10 can push the grounding metal plate 8 to move. Through the arrangement of the extrusion block 16, the metal end of the line is pushed to make the metal end in close contact with the side plate 19, avoiding the situations of poor contact and open circuit, and increasing the use safety.

[0024] The following specifically describes the specific settings and functions of this embodiment. Through the settings of the plastic outer frame 7 and the limiting end plate 9, the current is separated to avoid the current passing through the box-type transformer frame 1, thereby reducing the electric shock risk and ensuring the safety of maintenance workers for overhauling the box-type transformer. Through the settings of the limiting frame 10 and the side clamping plate 11, when connecting the grounding line, the line can be placed between the side clamping plate 11 and the limiting frame 10, and then the limiting frame 10 and the side clamping plate 11 are pressed, the grounding metal plate 8 is inserted into the inner slot 18, and the side clamping plate 11 and the limiting frame 10 are installed into the limiting clamping groove 17. In this way, through the limitation of the limiting end plate 9, the installation is relatively convenient. Through the arrangement of the extrusion block 16, the metal end of the line is pushed to make the metal end in close contact with the side plate 19, avoiding the situations of poor contact and open circuit, and increasing the use safety.

[0025] Embodiment 2: As Figure 1 - Figure 5As shown in the figure, a top cover 2 is fixedly connected to the upper end of the box-type transformer frame 1. An opening and closing door 3 is installed inside the box-type transformer frame 1. On both sides of the middle part below the two sides of the box-type transformer frame 1, first lifting rings 4 are fixedly connected. On both sides of the top cover 2, second lifting rings 5 are fixedly connected. An inner groove 18 is provided inside the plastic outer frame 7. The grounding metal plate 8 is slidably connected to the inner groove 18. The limiting clamping groove 17 communicates with the inner groove 18. Side grooves 14 are provided on the lower end of one side of the side clamping plate 11 and on one side of the limiting frame 10. A hinge 15 is fixedly connected inside the side groove 14. The side clamping plate 11 and the limiting frame 10 are rotatably connected through the hinge 15. An end block 13 is fixedly connected to the upper end of the side clamping plate 11. A wire limiting groove 12 is provided above one side of the side clamping plate 11.

[0026] The effect achieved by the entire embodiment is that through the setting of the wire limiting groove 12, the grounding line is restricted, which is convenient for connecting the grounding line. Through the setting of the hinge 15, the side clamping plate 11 is connected in a rotating manner, so that when the grounding line is squeezed and restricted, it is squeezed in a lever manner, making the connection more convenient.

[0027] The usage method and working principle of this device: During installation, first use bolts to install the limiting end plate 9 and the bottom plate 6. Then open the side clamping plate 11, insert the grounding line into the wire limiting groove 12, and make the metal end of the grounding line located at the extrusion block 16. At this time, the end of the grounding line is lifted by the extrusion block 16, making the grounding line in an inclined state. Then press the ends of the side clamping plate 11 and the limiting frame 10 to combine the side clamping plate 11 and the limiting frame 10. The extrusion block 16 squeezes the end of the grounding line so that it contacts the side plate 19. Then insert the side clamping plate 11 and the limiting frame 10 into the limiting clamping groove 17 until the lower end of the grounding metal plate 8 contacts the ground. When the ground below is muddy, the grounding metal plate 8 can be inserted into the mud. Then install the relevant equipment into this device and connect the grounding line to it.

[0028] The above is only a preferred embodiment of the present invention, and it is not a limitation of the present invention in other forms. Any person skilled in the art may use the disclosed technical content to make changes or modifications into equivalent embodiments with equivalent changes and apply them to other fields. However, as long as it does not depart from the technical solution content of the present invention, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. A box-type transformer housing with a grounding structure, comprising a box-type transformer frame (1), characterized in that: The lower end of the box-type transformer frame (1) is fixedly connected to a base plate (6), a plastic outer frame (7) is installed on one side of the base plate (6), the upper end of the plastic outer frame (7) is fixedly connected to a limiting end plate (9), the two sides of the limiting end plate (9) are fixedly connected to the base plate (6) by means of bolts, a grounding metal plate (8) is arranged inside the plastic outer frame (7), a limiting clamping groove (17) is provided inside the limiting end plate (9), a limiting frame (10) is slidably connected inside the limiting clamping groove (17), the upper end of the grounding metal plate (8) is fixedly connected to a side plate (19), the side plate (19) is fixedly connected to the limiting frame (10), a side clamping plate (11) is arranged on one side of the limiting frame (10), and an extrusion block (16) is fixedly connected to the lower end of one side of the side clamping plate (11).

2. The box-type transformer housing with a grounding structure according to claim 1, characterized in that: The upper end of the box-type transformer frame (1) is fixedly connected to a top cover (2), and an opening and closing door (3) is installed inside the box-type transformer frame (1).

3. The box-type transformer housing with a grounding structure according to claim 2 is characterized in that: A No. 1 lifting ring (4) is fixedly connected to both sides of the middle part below both sides of the box-type transformer frame (1), and a No. 2 lifting ring (5) is fixedly connected to both sides of the top cover (2).

4. The box-type transformer housing with a grounding structure according to claim 1, characterized in that: An inner groove (18) is provided inside the plastic outer frame (7), the grounding metal plate (8) is slidably connected to the inner groove (18), and the limiting clamping groove (17) is communicated with the inner groove (18).

5. The box-type transformer housing with a grounding structure according to claim 1, characterized in that: A side groove (14) is provided at the lower end of one side of the side clamping plate (11) and one side of the limiting frame (10). A hinge (15) is fixedly connected inside the side groove (14). The side clamping plate (11) and the limiting frame (10) are rotatably connected via the hinge (15).

6. The box-type transformer housing with a grounding structure according to claim 1, characterized in that: An end block (13) is fixedly connected to the upper end of the side clamping plate (11), and a limited line slot (12) is provided above one side of the side clamping plate (11).

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