Compact box-type transformer substation

Abstract

The utility model discloses a compact box transformer substation, which structurally comprises a high-voltage operation room, a transformer oil tank, a side low-voltage outgoing line, a main busbar, a shell, a low-voltage main switch, a positive low-voltage outgoing line and an operation door, the positive low-voltage outgoing line is installed on the whole portion of the front face of the shell and connected to the right side through the low-voltage main switch for control, the transformer oil tank is located at the position, close to the center, of the rear end of the shell, the main busbar is located at the position of the positive low-voltage outgoing line and the position of the side low-voltage outgoing line for connection, and the high-voltage operation chamber, the positive low-voltage outgoing line and the side low-voltage outgoing line are of a concave structure. The high-voltage operation chamber, the positive low-voltage outgoing line and the side low-voltage outgoing line are sequentially distributed into the concave structure, the transformer oil tank is installed at the concave position, the whole shell is of a rectangular structure, the internal installation space is reasonably distributed, the high-voltage operation chamber originally operated in the front face is changed into operation in the side face, and the overall installation space is saved; and the occupied space on a road is reduced.

Description

Technical Field

[0001] The utility model belongs to the field of box-type transformers, and more specifically, particularly relates to a compact box-type transformer. Background Art

[0002] The main structure of the American box transformer is a herringbone structure, with the transformer in the front and the high-voltage operating room and low-voltage box side by side at the rear. The oil cooling fins are located on three sides of the transformer for heat dissipation. The box transformer needs to be installed next to the road through appropriate site selection.

[0003] However, the American box-type transformer T-shaped structure not only wastes a lot of installation space, but also has a large volume in this state, occupying public areas of municipalities and roads, hindering traffic and road landscape, and other problems. Due to its large volume, there are problems with equipment site selection in road expansion and new construction projects. Utility Model Content

[0004] The purpose of the utility model is to provide a compact box transformer in order to solve the above problems.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] Its structure includes high-voltage operating room, transformer oil tank, side low-voltage outgoing line, main busbar, shell, low-voltage main switch, positive low-voltage outgoing line, and operating door;

[0007] The positive low-voltage outlet is installed on the entire front part of the shell, and is controlled by the low-voltage main switch connected to the right side. The transformer oil tank is located at a position offset from the center of the rear end of the shell. The main busbar is located at the positive low-voltage outlet and the side low-voltage outlet for connection. The installation positions of the high-voltage operating room, the positive low-voltage outlet and the side low-voltage outlet are in a concave structure. Surrounding the transformer oil tank saves more installation space. The positive low-voltage outlet and the side low-voltage outlet occupy a larger area, which can better increase the number of outlet circuits. The low-voltage main switch mainly operates and controls the positive low-voltage outlet and the side low-voltage outlet.

[0008] As a further improvement of the utility model, the high-voltage operating room is installed on the side of the transformer oil tank, and a side low-voltage outlet line is installed on the side of the transformer oil tank away from the high-voltage operating room. The operating door is hinged to the shell, and there are four operating doors in total, one on each of the two side faces on the front, which is convenient for outsiders to operate and maintain it.

[0009] As a further improvement of the utility model, the transformer oil tank includes an oil tank interior, a heat pipe, a fan, and a heat sink. The heat pipe runs through the interior of the oil tank. The top of the heat pipe is connected to the heat sink. A fan is installed on the side of the heat sink. The fan and the heat sink are in the same space to assist the internal air convection circulation to dissipate heat.

[0010] As a further improvement of the utility model, the heat pipe conducts the temperature inside the oil tank to the air, the fan performs convection circulation to dissipate heat on the internal air, and the heat pipes are evenly distributed in the same horizontal direction, so as to conduct temperature over a wider range.

[0011] As a further improvement of the present invention, the high-pressure operating room is located on the side of the shell and occupies a smaller area and is more concealed, which will increase the safety factor to the outside world. The fan and the shell are nested to connect the spaces on both sides.

[0012] As a further improvement of the present invention, the dimensions of the shell are 1800mm in length, 1150mm in width and 1800mm in height, the dimensions of the high-voltage operating room are 440mm in width, the dimensions of the side low-voltage outlet are 300mm in width, and the main busbar is in a state of two straight lines perpendicular to each other.

[0013] Compared with the prior art, the utility model has the following beneficial effects:

[0014] First, the traditional American box transformer is mainly a U-shaped structure with a size of 1900*1600*2060. The high-voltage operation room, the positive low-voltage outlet and the side low-voltage outlet are distributed in a concave structure in sequence, and the transformer oil tank is installed in the concave part, so that the overall shell is a rectangular structure, and the internal installation space is reasonably distributed. The size of the shell is 1800*1800*1150, and the high-voltage operation room that was originally operated from the front is changed to side operation, which saves the overall installation space and reduces the space occupied on the road.

[0015] Secondly, when the high-voltage operating room is changed to side operation, the space on the front and the other side is used to install the positive low-voltage outlet and the side low-voltage outlet, which effectively utilizes the space inside the shell, making the installation area of ​​the positive low-voltage outlet and the side low-voltage outlet larger and increasing the number of outlet circuits, and the low-voltage main switch is in the front position for easy operation.

[0016] Thirdly, the traditional oil cooling fins are eliminated and replaced by a heat pipe installed above the transformer oil tank to transfer the temperature inside the oil tank to the air. The heat is dissipated by the heat sink above the heat pipe, and the air on both sides of the inside and outside is connected by a fan for convection circulation and heat dissipation, which can better and continuously dissipate the heat of the internal space. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 The utility model is a structural schematic diagram of a compact box transformer.

[0018] Figure 2 It is a structural schematic diagram of the transformer oil tank of the utility model.

[0019] Figure 3It is a structural schematic diagram of the side low-voltage outlet of the utility model.

[0020] Figure 4 It is a structural schematic diagram of the positive low-voltage outlet of the utility model.

[0021] Figure 5 It is a structural schematic diagram of the high-pressure operating chamber of the utility model.

[0022] Figure 6 The figure is a schematic diagram of the size structure of the miniaturized box-type transformer of the utility model.

[0023] In the figure: high-voltage operating room-1, transformer oil tank-2, side low-voltage outgoing line-3, main busbar-4, shell-5, low-voltage main switch-6, positive low-voltage outgoing line-7, operating door-8, inside the oil tank-21, heat pipe-22, fan-23, heat sink-24. DETAILED DESCRIPTION

[0024] The utility model is further described below in conjunction with the accompanying drawings:

[0025] As attached Figure 1 To Attachment Figure 6 As shown:

[0026] The utility model provides a compact box transformer, the structure of which includes a high-voltage operating room 1, a transformer oil tank 2, a side low-voltage outlet 3, a main busbar 4, a shell 5, a low-voltage main switch 6, a positive low-voltage outlet 7, and an operating door 8;

[0027] The positive low-voltage outlet 7 is installed on the entire front part of the shell 5, and is controlled by the low-voltage main switch 6 connected to the right side. The transformer oil tank 2 is located at a position eccentric to the rear end of the shell 5. The main busbar 4 is located at the positive low-voltage outlet 7 and the side low-voltage outlet 3 for connection. The installation positions of the high-voltage operating room 1, the positive low-voltage outlet 7 and the side low-voltage outlet 3 are in a concave structure, and surrounding the transformer oil tank 2 saves more installation space. The positive low-voltage outlet 7 and the side low-voltage outlet 3 occupy a larger area, which can better increase the number of outlet circuits. The low-voltage main switch 6 mainly operates and controls the positive low-voltage outlet 7 and the side low-voltage outlet 3. The shell 5 is lighter than the traditional American box, and the overall shape is a rectangular structure. The internal installation distribution is reasonable, which saves more space.

[0028] Among them, the high-voltage operating room 1 is installed on the side of the transformer oil tank 2, and a side low-voltage outlet line 3 is installed on the side of the transformer oil tank 2 away from the high-voltage operating room 1. The operating door 8 is hinged to the shell 5. There are four operating doors 8, one on each of the two side faces on the front, which is convenient for the outside world to operate and maintain them. The low-voltage main switch 6 is located on the front of the shell 5, which is more convenient to operate.

[0029] The transformer oil tank 2 includes an oil tank interior 21, a heat pipe 22, a fan 23, and a heat sink 24. The heat pipe 22 runs through the oil tank interior 21. The top of the heat pipe 22 is connected to the heat sink 24. A fan 23 is installed on the side of the heat sink 24. The fan 23 and the heat sink 24 are in the same space to assist the internal air convection circulation to dissipate heat. The heat sink 24 is located above the transformer oil tank 2 and between the high-voltage operating room 1 and the side low-voltage outlet 3.

[0030] Among them, the heat pipe 22 conducts the temperature inside the oil tank 21 to the air, and the fan 23 performs convection circulation to dissipate heat for the internal air. The heat pipes 22 are evenly distributed in the same horizontal direction and can conduct temperature over a larger range. The heat sink 24 assists the heat pipe 22 in dissipating the temperature conducted by the heat pipe 22 to the outside of the oil tank 21.

[0031] Among them, the high-voltage operating room 1 is located on the side of the shell 5 and occupies a small area and is relatively hidden, so the safety factor to the outside world will be improved. The fan 23 is nested with the shell 5 to connect the spaces on the inner and outer sides. The distribution inside the shell 5 is a concave structure that surrounds the transformer oil tank 2. The fan 23 can convectively circulate and dissipate heat for the air around the four major parts.

[0032] Among them, the dimensions of the shell 5 are 1800mm in length, 1150mm in width, and 1800mm in height. The dimension of the high-voltage operating room 1 is 440mm in width. The dimension of the side low-voltage outlet line 3 is 300mm in width. The main busbar 4 is in a state of two straight lines perpendicular to each other, and the operating door 8 opens at a fan-shaped angle.

[0033] The specific usage and function of this embodiment are as follows:

[0034] In the utility model, the high-voltage operating room 1 and the positive low-voltage outlet 7 and the side low-voltage outlet 3 are installed and distributed in a concave shape in sequence, and the transformer oil tank 2 is assembled at the grooves of the three, so that the shell 5 is mainly rectangular in structure, and the overall installation distribution range is small, which can better save the installation space. The positive low-voltage outlet 7 and the side low-voltage outlet 3 are located at the front and one side, and the large-area distribution can increase the number of outlet circuits. The low-voltage main switch 6 is located at the front for easy control. The high-voltage operating room 1 and the transformer oil tank 2 are located at the rear and the other side, and the safety factor is higher that it is not easy to touch. The heat pipe 22 above the transformer oil tank 2 conducts the temperature inside the oil tank 21 to the outside, and is evacuated into the air by the heat sink 24. The fan 23 connects the space on both sides of the inside and outside, and the air on both sides is convectively circulated to dissipate heat, so that the air inside the shell 5 can continue to convectively dissipate heat. The position of the fan 23 can allow the four major parts to be processed at the same time, and the overall use of the rectangular space of the shell 5 is distributed and installed, effectively utilizing the space.

[0035] Utilizing the technical solution described in the utility model, or those skilled in the art designing similar technical solutions inspired by the technical solution of the utility model to achieve the above-mentioned technical effects, all fall within the protection scope of the utility model.

Claims

1. A compact box transformer, comprising a high voltage operating room (1), a transformer oil tank (2), a side low voltage outlet (3), a main busbar (4), a housing (5), a low voltage main switch (6), a positive low voltage outlet (7), and an operating door (8), characterized in that: The positive low-voltage outlet (7) is installed on the entire front part of the housing (5) and is controlled by the low-voltage main switch (6) connected to the right side. The transformer oil tank (2) is located at a position offset from the center of the rear end of the housing (5). The main busbar (4) is located at the positive low-voltage outlet (7) and the side low-voltage outlet (3) for connection. The installation positions of the high-voltage operating room (1), the positive low-voltage outlet (7) and the side low-voltage outlet (3) are in a concave-shaped structure. Enclosing the transformer oil tank (2) further saves installation space. The positive low-voltage outlet (7) and the side low-voltage outlet (3) occupy a larger area, which can better increase the number of outlet circuits.

2. The compact box-type transformer according to claim 1 is characterized in that: The high-voltage operating room (1) is installed on the side of the transformer oil tank (2), a side low-voltage outlet line (3) is installed on the side of the transformer oil tank (2) away from the high-voltage operating room (1), and the operating door (8) is hingedly connected to the housing (5).

3. The compact box-type transformer according to claim 1 is characterized in that: The transformer oil tank (2) comprises an oil tank interior (21), a heat pipe (22), a fan (23), and a heat sink (24); the heat pipe (22) runs through the interior of the oil tank interior (21); the top of the heat pipe (22) is connected to the heat sink (24); and the fan (23) is installed on the side of the heat sink (24).

4. The compact box-type transformer according to claim 3 is characterized in that: The heat pipe (22) conducts the temperature inside the oil tank (21) to the air, and the fan (23) performs convection circulation on the internal air to dissipate heat.

5. The compact box-type transformer according to claim 1 is characterized in that: The high-pressure operating room (1) is located on the side of the shell (5) and occupies a small area and is relatively hidden, thereby increasing the safety factor from the outside world.

6. The compact box-type transformer according to claim 1 is characterized in that: The dimensions of the shell (5) are 1800 mm in length, 1150 mm in width and 1800 mm in height, the dimensions of the high-pressure operating chamber (1) are 440 mm in width, and the dimensions of the side low-pressure outlet line (3) are 300 mm in width.

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