A structure of an outer box of a european box transformer

Abstract

The utility model discloses a kind of European style box transformer outer box structure, including box, pedestal and box door, box and pedestal constitute the electric power unit placement cavity with opening, box door is hingedly installed on the box for closing the opening of electric power unit placement cavity, box lower end is provided with slot, plugboard piece is arranged in the slot, the connecting slot of corresponding setting is set on pedestal, plugboard piece front end inserts connecting slot, box is at least also provided with detachable beam column below front, the both ends of detachable beam column are provided with locking structure and connect two side box inner wall;The box transformer outer box structure of the utility model is set, its characteristics are in that it can be relatively pedestal and the design of electric power unit movable disassembly fixedly installed on pedestal, by directly disassembling complete outer box, so that internal electric power unit is completely exposed outside, when assembling, installing and maintaining maintenance, can be conveniently operated by staff.

Description

Technical Field

[0001] This utility model relates to the technical field of box-type substation enclosure structure, specifically to a European-style box-type substation outer enclosure structure. Background Technology

[0002] Prefabricated substations are power facilities in power systems that transform voltage, receive and distribute electrical energy, control the flow of power, and adjust voltage. They are an important type of power production site. Prefabricated substations have advantages such as small size, small footprint, light weight, and low cost, and are widely used in residential areas, urban public power supply, bustling city centers, densely populated urban areas, urban public power distribution, street lighting power distribution, industrial and mining facilities, and temporary power supply sites.

[0003] Existing European-style prefabricated substations typically employ a side-opening single or double-door structure. To enhance maintenance visibility and ease of access for maintenance personnel, inspection doors are often located on the sides of each equipment compartment. While this design provides some access to the interior, during actual maintenance, when multiple single or double doors are open, the open doors become obstructions, forcing workers to navigate around them when moving between the various equipment compartments. Therefore, Chinese patent CN202421810026.8, "A European-style Prefabricated Substation for Easier Maintenance," proposes a prefabricated substation enclosure design with an upward-opening door. However, this solution still presents obstructions due to the supporting columns of the substation casing. Further design and improvement are possible based on existing technology. Utility Model Content

[0004] In view of the existing technology, the purpose of this utility model is to provide a structural design scheme for a European-style transformer substation outer box that can completely remove the obstruction of the outer box of the transformer substation, and facilitate the installation of internal units and maintenance during use.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: a European-style box-type transformer outer box structure, including a box body, a base, and a box door. The box body and the base form an open power unit mounting cavity. The box door is hinged to the box body to close the opening of the power unit mounting cavity. The lower end of the box body is provided with a slot, and an insert plate is provided in the slot. A corresponding connecting groove is provided on the base, and the front end of the insert plate is inserted into the connecting groove. The box body is also provided with a detachable beam column at least on the lower front side. The two ends of the detachable beam column are provided with locking structures to connect to the inner walls of the two sides of the box body.

[0006] As described in the above embodiment, the locking structure includes a locking pin located on the inner side of the box body and locking grooves located at both ends of the detachable beam column.

[0007] As described in the above embodiment, the enclosure is further provided with a central column, which is located in the middle of the opening of the power unit mounting cavity and is used for hinged connection of the enclosure door. The two ends of the central column are respectively provided with pins that are detachably disposed relative to the enclosure. The enclosure is provided with a insertion groove opposite to the pin, and the pin and the insertion groove are circumferentially fixed.

[0008] As described in the above embodiment, the insert plate is further equipped with a movable carriage plate, which includes a connecting plate and movable wheels. The connecting plate is provided with a locking rod groove and a locking rod, and the insert plate is provided with a locking hole opposite to the locking rod groove.

[0009] As described in the above embodiment, the housing is further provided with a receiving cavity, the opening of which is located inside the power unit mounting cavity, and the receiving cavity is used for storing the mobile platform.

[0010] Beneficial effects: The outer casing structure of this utility model is characterized by its ability to be disassembled and moved relative to the base and the power unit fixedly installed on the base. By directly disassembling the complete outer casing, the internal power unit is fully exposed, which facilitates operation by staff during assembly, installation and maintenance. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of the box-type transformer structure of this utility model.

[0012] Figure 2 This is a schematic diagram of the box structure in this embodiment.

[0013] Figure 3 This is a schematic diagram of the base structure in this embodiment.

[0014] Reference numerals: 1. Box body; 11. Slot; 12. Insert plate; 13. Detachable beam / column; 14. Lock groove; 15. Locking pin; 18. Receiving cavity; 2. Base; 22. Connecting groove; 3. Box door; 4. Central column; 41. Pin; 42. Insertion groove; 5. Moving platform; 51. Connecting plate; 52. Moving wheel; 53. Locking rod groove; 54. Lock hole; 55. Locking rod. Detailed Implementation

[0015] To better understand the above-mentioned objectives, features, and advantages of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, where there is no conflict, the embodiments and features described in these embodiments can be combined with each other.

[0016] like Figure 1-3The European-style transformer substation outer casing structure shown in this utility model is mainly designed to address the issue that existing technical solutions typically use multi-angle opening doors 3 to expand the field of vision for maintenance operations inside the casing. This embodiment proposes further improvements. For locations where the installation site is suitable, i.e., the available space at the installation site is at least twice the size of the transformer substation, the outer casing of this embodiment can be completely detached from or located away from the internal power unit of the casing 1. This allows the internal power unit of the European-style transformer substation with bottom-entry wiring to be fully exposed to the outside space, providing maximum convenience for maintenance, assembly, and installation. In larger designs, it also allows workers to use lifting devices to raise the operating height of maintenance engineers, facilitating the operation and debugging of components at higher positions.

[0017] As described in the above embodiment, the structure of the transformer substation outer casing includes a main casing 1, a base 2 that can be separated from the casing 1, and a door 3. Figure 1 As shown, in this embodiment, the box body 1 and the base 2 constitute an open power unit placement cavity. The box door 3 is hinged to the box body 1 to close the opening of the power unit placement cavity, thereby achieving a complete non-airtight seal of the box body 1, which is used to prevent external animals from entering and to prevent theft.

[0018] Furthermore, such as Figure 2 and Figure 3 The box body 1 shown in this embodiment has a slot 11 at the lower end, and a plate 12 is provided in the slot 11. A corresponding connecting groove 22 is provided on the base 2. The front end of the plate 12 is inserted into the connecting groove 22. The box body 1 also has a detachable beam 13 at least on the lower front side. The two ends of the detachable beam 13 are provided with locking structures to connect the inner walls of the two sides of the box body 1. The locking structure includes a locking pin 15 provided on the inner side of the box body 1 and a locking groove 14 provided on both ends of the detachable beam 13.

[0019] As described above, in this embodiment, the housing 1 and the base 2 are connected by two mechanisms. First, an insert plate 12 is used. In use, half of the insert plate 12 is inserted into the connecting groove 22 on the base 2, and the other half is located in the slot 11, thus restricting the housing 1 in the front-back and vertical directions. Second, detachable beams 13 are provided on the front and back of the housing 1. Through locking pins 15 provided on the housing 1, the detachable beams 13 are connected laterally by inserting the locking pins 15 into the locking grooves 14 on the detachable beams 13 from above. This allows the base 2 to provide lateral support to the housing 1 and provide front-back support. The movement is restricted, and the overall strength of the box 1 is maintained by the support of the upper cover, forming a support frame. Furthermore, the insert plate 12 is also provided with a lock hole 54. When it is necessary to move and disassemble the box 1 relative to the base 2, the movable cart 5 stored in the accommodating cavity 18 can be connected by the locking rod 55 passing through the locking rod groove 53 on the insert plate 12 and the connecting plate 51, thereby connecting the box 1 to the movable cart 5. This makes it convenient for the staff to unload the box 1 backward or forward and temporarily place it on the movable cart 5.

[0020] As a further provision of the above scheme, the housing 1 is also provided with a central column 4, which is located in the middle of the opening of the power unit mounting cavity and is used for the hinge of the housing door 3. The two ends of the central column 4 are respectively provided with pins 41 that are detachably provided relative to the housing 1. The housing 1 is provided with a plug groove 42 opposite to the pins 41, and the pins 41 and the plug groove 42 are circumferentially fixed.

[0021] Furthermore, in the aforementioned process of unloading the enclosure 1 using the mobile platform 5 to facilitate the operation of the power units on the base 2 by staff, before unloading, given the large openings on the front or back of large transformer substations, enclosure doors 3, which are generally larger than two doors, are typically installed. Therefore, a hinged central column 4 is commonly used for the door. The purpose of the central column 4 includes hinged installation and support for the enclosure door 3. In this embodiment, the central column 4 is improved to allow for temporary disassembly relative to the enclosure 1, moving the enclosure 1 away from the base 2 before re-supporting it. It is worth noting that in this embodiment, the central column 4 has pins 41 at both the upper and lower ends, and the enclosure 1 has insertion slots 42 for the central column 4 to face the rear pins. The insertion of pin 41 and the polygonal arrangement of pin 41 and slot 42 prevents the rotation of the central column 4 from affecting the installation and use of the box door 3. After the central column 4 is temporarily removed, the front or back of the box body 1 does not interfere with the power unit installed on the base 2. The box body 1 can be temporarily moved out by external equipment or by installing a mobile vehicle 5, so that the power unit on the base 2 can be fully exposed. Engineers can operate it from the front, back, left, right and top, fully opening the view of the transformer. During normal inspection, operation and maintenance, it can also be used by opening the box door 3 on the front and back sides. When needed, it can be fully opened based on the outer box structure design of this utility model.

[0022] As a further provision of the above scheme, the insert plate 12 is also equipped with a movable plate 5, the movable plate 5 includes a connecting plate 51 and a movable wheel 52, the connecting plate 51 is provided with a locking rod groove 53 and a locking rod 55, and the insert plate 12 is provided with a locking hole 54 opposite to the locking rod groove 53.

[0023] As a further provision of the above scheme, the housing 1 is also provided with a receiving cavity 18, the opening of which is located inside the power unit mounting cavity, and the receiving cavity 18 is used for storing the mobile platform 5.

[0024] As described above in the transformer substation enclosure design of this embodiment, the power busbar cable of this European-style transformer substation extends from the pit at the bottom of the base 2, and the output busbar also extends through the pit to connect to the external power system. The enclosure 1 is placed on the base 2, and side insert plates 12, as well as front or back central columns 4 and detachable beam columns 13 are provided to assist in the installation and stability of the enclosure 1. In this embodiment, routine maintenance can be performed by opening the front, back, or side doors 3 for easy operation by staff. However, in special circumstances or during installation, such as... Figures 1-3 The four-door transformer substation shown in the diagram can be operated as follows: First, unlock the door 3. Then, disassemble the central column 4 and the two hinged doors 3 from the inside. Next, remove the two movable plates 5 from the accommodating cavity 18 inside the transformer body 1. Then, pull out the pin on the insert plate 12 on the base 2 to unlock the insert plate 12. Then, pull out the insert plate 12 from the slots 11 on both sides of the transformer body 1. After the insert plate 12 is pulled out to its limit, the end limiting plate is fastened to the inside of the side wall of the transformer body 1. At this time, the insert plate 12... With the end completely detached from the base 2, the locking hole 54 on the plug plate 12, which is partially exposed outside the box 1, is aligned with the locking rod groove 53 on the corresponding mobile trolley plate 5. At this time, the operator can connect the two through the locking rod 55. After the mobile trolley plates 5 are installed on both sides, the box 1 can be detached from the base 2 by pushing from the front. At this time, the operator can operate on the fully exposed power unit. After the maintenance is completed, the operation is reversed to install the box 1 and the base 2, thus completing the closed and safe protection of the internal power unit.

[0025] Obviously, those skilled in the art can make various modifications and variations to this utility model without departing from its spirit and scope. Therefore, if these modifications and variations fall within the scope of this utility model and its equivalents, this utility model also intends to include these modifications and variations.

Claims

1. A European-style prefabricated substation outer casing structure, comprising a casing (1), a base (2), and a door (3), wherein the casing (1) and the base (2) constitute an open power unit mounting cavity, and the door (3) is hinged to the casing (1) for closing the opening of the power unit mounting cavity, characterized in that: The lower end of the box (1) is provided with a slot (11), and a plate (12) is provided in the slot (11). A corresponding connecting groove (22) is provided on the base (2). The front end of the plate (12) is inserted into the connecting groove (22). The box (1) is also provided with a detachable beam (13) at least on the lower front side. The two ends of the detachable beam (13) are provided with a locking structure to connect the inner walls of the two sides of the box (1).

2. The European-style prefabricated substation outer casing structure according to claim 1, characterized in that: The locking structure includes a locking pin (15) located on the inner side of the box (1) and locking grooves (14) located at both ends of the detachable beam (13).

3. The European-style prefabricated substation outer casing structure according to claim 1, characterized in that: The enclosure (1) is also provided with a central column (4), which is located in the middle of the opening of the power unit mounting cavity and is used for the hinge of the enclosure door (3). The two ends of the central column (4) are respectively provided with pins (41) which are detachably provided relative to the enclosure (1). The enclosure (1) is provided with a plug groove (42) opposite to the pin (41), and the pin (41) and the plug groove (42) are circumferentially fixed.

4. The European-style prefabricated substation outer casing structure according to claim 1, characterized in that: The insert plate (12) is also equipped with a movable plate (5), which includes a connecting plate (51) and a movable wheel (52). The connecting plate (51) is provided with a locking rod groove (53) and a locking rod (55), and the insert plate (12) is provided with a locking hole (54) opposite to the locking rod groove (53).

5. The European-style prefabricated substation outer casing structure according to claim 4, characterized in that: The housing (1) is also provided with a accommodating cavity (18), the opening of which is located inside the power unit mounting cavity, and the accommodating cavity (18) is used for storing the mobile platform (5).

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