Combined box-type power transformation cabinet
By setting a combination design of docking parts and pins on the back of the substation cabinet, the precise docking and firm connection of the substation cabinet are achieved, the safety hazards caused by insolid connections in the prior art are solved, and the safety and reliability of the power system are improved.
Patent Information
- Application Number
- CN202422499355.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-16
- Publication Date
- 2025-08-19
- Estimated Expiration
- 2034-10-16
AI Technical Summary
When used in combination, the internal electrical connections of existing substation cabinets are not firm enough, which poses safety risks, and are prone to loosening when subjected to external forces, resulting in unstable current transmission.
A combined box-type substation cabinet is designed, which uses docking parts, connecting plates and pin rods to uniformly set up on the back of the cabinet body. The pin holes are plugged into the pins through the pin rods and locked with long rod bolts and nuts to ensure accurate butt and firm connections of different models of substation cabinets.
It realizes accurate docking and reliable locking between substation cabinets, reduces safety hazards caused by insolid connections or misalignment, improves the safety and reliability of the power system, and can withstand the action of external forces without shifting or loosening.
Smart Images
Figure CN223246112U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of transformer cabinets, in particular to a combined box-type transformer cabinet. Background Art
[0002] A substation is a comprehensive device that integrates control, protection, measurement, communication, and power distribution. A crucial component of the power system, it converts high-voltage electricity into low-voltage energy and distributes it to various user devices. It also performs multiple functions, including protection, measurement, and communication.
[0003] In the prior art, multiple substations are often combined for use. Due to the heavy weight and relatively stable structure of substations, to facilitate installation and subsequent expansion and separation, the substations are placed directly next to each other and connected and coordinated via cables or other structures. However, while this facilitates installation and subsequent expansion and separation of the substations, the substations are not precisely connected together, resulting in insecure internal electrical connections, unstable current transmission, and potential safety hazards. Furthermore, in the event of an accident, the connections between the substations may become loose and unreliable. Utility Model Content
[0004] The purpose of the present invention is to solve at least one of the above technical deficiencies.
[0005] Therefore, one purpose of the present invention is to provide a combined box-type transformer cabinet to solve the problems mentioned in the background technology and overcome the shortcomings of the prior art.
[0006] In order to achieve the above-mentioned object, an embodiment of one aspect of the present invention provides a combined box-type substation cabinet, comprising a cabinet body, a cabinet door, and an inner rail, wherein the cabinet body is movably connected to the cabinet door on the front side, and the inner rail is fixedly connected to the inner side of the cabinet body, and the inner rail has horizontal and vertical directions;
[0007] The four corners of the cabinet top surface are fixedly connected with lifting ears;
[0008] The back of the cabinet is fixedly connected with a plurality of heat dissipation ports, with the ports of the heat dissipation ports facing downwards;
[0009] A joint is fixedly connected to the edge of the back of the cabinet, and a docking piece is fixedly connected to the end of the joint. A plurality of pin holes are opened on the side of the docking piece, and a through hole is opened on the docking piece, and the through hole vertically penetrates the docking piece;
[0010] A connecting plate is fixedly connected to the edge of the other side of the back of the cabinet, and a plurality of pins are fixedly connected to one side of the connecting plate. The pins are inserted into the corresponding pin holes of the other cabinet docking parts, and long-rod bolts are inserted into the through holes. The long-rod bolts are inserted into the pins, and the ends of the long-rod bolts are threadedly connected with nuts.
[0011] Preferably, any of the above solutions is that a high-voltage disconnector, a combination electrical device, an instrument and a mutual inductor are integrated inside the cabinet, and a door lock is integrated on the cabinet door.
[0012] Adopting the above technical solution: This device is a modular box-type substation cabinet, which is characterized in that multiple cabinets can be used in combination, the bottom plate of the cabinet is not grounded, and the bottom plate of the cabinet is a hollow design. The cabinets can be connected and coordinated through wiring here, so that they can be used in combination.
[0013] Preferably, any of the above solutions is that the heat dissipation port is riveted to the back of the cabinet, and the joint is welded to the back of the cabinet.
[0014] Using the above technical solution, this substation includes a high-voltage disconnector, a core component responsible for separating and merging circuits. Combined electrical equipment includes various electrical devices, such as transformers and capacitors, which work together to perform tasks such as power conversion, distribution, and protection. Instruments measure and display various power parameters, such as voltage, current, and power factor. Transformers transform voltage or current for accurate measurement and protection. Other auxiliary equipment and components also include busbars, connectors, and insulators.
[0015] This substation receives electrical energy: The high-voltage side of the substation receives high-voltage electricity from the transmission line. Transformation: The transformer reduces the voltage to a low-voltage suitable for user use. Distribution: The low-voltage electricity output by the transformer is distributed to various user electrical devices through the distribution system to meet their power needs. Protection: In the event of abnormal current or short circuit, the protection system will immediately cut off the circuit to prevent equipment damage and personal safety. The substation also regulates and stabilizes the electrical energy to ensure its quality and stability.
[0016] Preferably, any of the above solutions is that the docking piece is arranged vertically, the pin holes are arranged horizontally, and the through holes connect all the pin holes on the docking piece.
[0017] Adopting the above technical solution: the core structure of this device is: lifting ears, joints, docking parts, pin holes, through holes, connecting plates, pin rods, long rod bolts and nuts. The core advantages of this device are: uniform docking parts, connecting plates and pin rods are designed on the back of the cabinets to be docked, ensuring that different types of box-type substation cabinets can be seamlessly docked. When two substation cabinets are docked, the pin rods are inserted into the pin holes of the docking parts, and the docking combination guides are accurately performed to guide the two cabinets to automatically calibrate their positions during the docking process. Then, a reliable locking mechanism is designed. After the pin rods are inserted into the pin holes, long rod bolts are used to penetrate the pin rods and through holes, and then the nuts are tightened. After the cabinets are docked, they can be firmly locked to prevent displacement due to external forces.
[0018] Precise docking and a reliable locking mechanism reduce safety hazards caused by loose or misaligned connections between cabinets, improving the safety and reliability of the entire power system. The secure, precisely docked cabinets withstand external forces such as wind and earthquakes, preventing the substation from shifting or loosening.
[0019] Preferably, in any of the above solutions, the connecting plate is made of ceramic and is riveted to the back of the cabinet.
[0020] Preferably, from any of the above schemes, the pin rod is threadedly connected to the connecting plate, and the long rod bolt vertically penetrates the connecting piece.
[0021] Compared with the prior art, the advantages and beneficial effects of the present invention are as follows:
[0022] The combined box-type substation cabinet is designed with the coordination of lifting ears, joints, docking pieces, pin holes, through-holes, connecting plates, pin rods, long-rod bolts and nuts. A unified docking piece, connecting plate and pin rod are designed on the back of the cabinets to be docked, ensuring that different models of box-type substation cabinets can be seamlessly docked. When two substation cabinets are docked, the pin rods are inserted into the pin holes of the docking pieces, and the docking combination guide is accurately performed to guide the two cabinets to automatically calibrate their positions during the docking process. Then, a reliable locking mechanism is designed. After the pin rods are inserted into the pin holes, long-rod bolts are used to penetrate the pin rods and through-holes, and then the nuts are tightened. After the cabinets are docked, they can be firmly locked to prevent displacement due to external forces.
[0023] Precise docking and a reliable locking mechanism reduce safety hazards caused by loose or misaligned connections between cabinets, improving the safety and reliability of the entire power system. The secure, precisely docked cabinets withstand external forces such as wind and earthquakes, preventing the substation from shifting or loosening. BRIEF DESCRIPTION OF THE DRAWINGS
[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments in conjunction with the following drawings, in which:
[0025] Figure 1 This is a schematic structural diagram of the utility model from the first perspective;
[0026] Figure 2 This is a schematic structural diagram of the utility model from a second viewing angle;
[0027] Figure 3 This is a structural diagram of the docking piece of the utility model;
[0028] Figure 4 For this utility model Figure 2 Schematic diagram of the enlarged structure at point A in the middle.
[0029] In the figure: 1-cabinet body, 2-cabinet door, 3-inner rail, 4-hanging ear, 5-heat dissipation vent, 6-connector, 7-docking piece, 8-pin hole, 9-through hole, 10-connecting plate, 11-pin rod, 12-long rod bolt, 13-nut. DETAILED DESCRIPTION
[0030] The following describes in detail embodiments of the present invention, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to explain the present invention, and should not be construed as limiting the present invention.
[0031] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integral connection; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.
[0032] like Figure 1-4 As shown, the modular box-type substation cabinet of the present invention comprises a cabinet body 1, a cabinet door 2, and an inner rail 3. The cabinet door 2 is movably connected to the front of the cabinet body 1, and the inner rail 3 is fixedly connected to the inner side of the cabinet body 1. The inner rail 3 has horizontal and vertical directions.
[0033] The four corners of the top surface of the cabinet 1 are fixedly connected with lifting ears 4;
[0034] The back of the cabinet 1 is fixedly connected with a plurality of heat dissipation ports 5, with the ports of the heat dissipation ports 5 facing downwards;
[0035] A joint 6 is fixedly connected to the edge of the back of the cabinet 1, and a docking piece 7 is fixedly connected to the end of the joint 6. A plurality of pin holes 8 are opened on the side of the docking piece 7, and a through hole 9 is opened on the docking piece 7, which vertically penetrates the docking piece 7;
[0036] A connecting plate 10 is fixedly connected to the edge of the other side of the back of the cabinet body 1, and a number of pins 11 are fixedly connected to one side of the connecting plate 10. The pins 11 are inserted into the pin holes 8 corresponding to the docking parts 7 of the other cabinet body 1. Long rod bolts 12 are inserted into the through holes 9. The long rod bolts 12 are inserted into the pins 11, and the ends of the long rod bolts 12 are threadedly connected with nuts 13.
[0037] Example 1: The interior of the cabinet 1 also integrates a high-voltage disconnect switch, combined electrical components, instrumentation, and a transformer. The cabinet door 2 is equipped with an integrated lock. This device is a modular box-type substation cabinet, characterized by the ability to combine multiple cabinets 1. The bottom plate of the cabinet 1 is not grounded, but rather hollowed out, allowing wiring to connect and coordinate between cabinets 1, allowing for combined use. The heat dissipation vent 5 is riveted to the back of the cabinet 1, and the connector 6 is welded to the back of the cabinet 1.
[0038] Example 2: Docking member 7 is arranged vertically, pin holes 8 are arranged horizontally, and through-hole 9 connects all pin holes 8 on docking member 7. Connecting plate 10 is made of ceramic and riveted to the back of cabinet 1. Pin rod 11 is threadedly connected to connecting plate 10, and long-stem bolt 12 vertically penetrates docking member 7.
[0039] The working principle of this utility model is as follows:
[0040] In this substation, the high-voltage disconnector, as the core component, is responsible for separating and merging circuits. Combined electrical equipment, including various electrical devices such as transformers and capacitors, works together to complete tasks such as power conversion, distribution, and protection. Instruments measure and display various electrical parameters, such as voltage, current, and power factor. Transformers transform voltage or current for accurate measurement and protection. Other auxiliary equipment and components also include busbars, connectors, and insulators.
[0041] This substation receives electrical energy: The high-voltage side of the substation receives high-voltage electricity from the transmission line. Transformation: The transformer reduces the voltage to a low-voltage suitable for user use. Distribution: The low-voltage electricity output by the transformer is distributed to various user electrical devices through the distribution system to meet their power needs. Protection: In the event of abnormal current or short circuit, the protection system will immediately cut off the circuit to prevent equipment damage and personal safety. The substation also regulates and stabilizes the electrical energy to ensure its quality and stability.
[0042] When the cabinets 1 are combined, the cabinet 1 is hoisted by a lifting device, and then moved horizontally to be docked with another cabinet 1, so that the pin rod 11 is inserted into the pin hole 8 of the docking piece 7 of the other cabinet 1, and the docking combination guide is accurately performed to guide the two cabinets 1 to automatically calibrate their positions during the docking process. After the pin rod 11 is inserted to the bottom, a long rod bolt 12 is used to penetrate the pin rod 11 and the through hole 9, and then the nut is tightened. After the cabinets 1 are docked, they can be firmly locked.
[0043] Compared with the prior art, the present invention has the following beneficial effects:
[0044] The combined box-type substation cabinet is provided with a matching arrangement of a lifting ear 4, a joint 6, a docking piece 7, a pin hole 8, a through-hole 9, a connecting plate 10, a pin rod 11, a long-rod bolt 12 and a nut 13. A unified docking piece 7, a connecting plate 10 and a pin rod 11 are designed on the back of the cabinet 1 to be docked, so as to ensure that different types of box-type substation cabinets can be seamlessly docked. When two substation cabinets are docked, the pin rod 11 is plugged into the pin hole 8 of the docking piece 7, and the docking combination guide is accurately performed to guide the two cabinets 1 to automatically calibrate their positions during the docking process. Then, a reliable locking mechanism is designed. After the pin rod 11 is plugged into the pin hole 8, a long-rod bolt 12 is used to penetrate the pin rod 11 and the through-hole 9, and then the nut is tightened. After the cabinets 1 are docked, they can be firmly locked to prevent displacement due to external force.
[0045] Precise docking and a reliable locking mechanism reduce safety hazards caused by loose connections or misalignment between cabinets, improving the safety and reliability of the entire power system. The firm and precise docking between cabinets can withstand various external forces such as wind and earthquakes, preventing the substation from shifting or loosening.
Claims
1. A combined box-type transformer cabinet, characterized in that: The cabinet comprises a cabinet body (1), a cabinet door (2), and an inner rail (3); the front of the cabinet body (1) is movably connected to the cabinet door (2); the inner side of the cabinet body (1) is fixedly connected to the inner rail (3); and the inner rail (3) has a horizontal direction and a vertical direction; The four corners of the top surface of the cabinet (1) are fixedly connected with lifting ears (4); The back of the cabinet (1) is fixedly connected with a plurality of heat dissipation openings (5), and the ports of the heat dissipation openings (5) face downward; A joint (6) is fixedly connected to the edge of the back of the cabinet (1), and a docking piece (7) is fixedly connected to the end of the joint (6). A plurality of pin holes (8) are provided on the side of the docking piece (7), and a through hole (9) is provided on the docking piece (7), and the through hole (9) vertically penetrates the docking piece (7); A connecting plate (10) is fixedly connected to the edge of the other side of the back of the cabinet (1), and a plurality of pins (11) are fixedly connected to one side of the connecting plate (10). The pins (11) are inserted into corresponding pin holes (8) of a docking piece (7) of another cabinet (1), and a long rod bolt (12) is inserted into the through hole (9). The long rod bolt (12) is inserted into the pin (11), and a nut (13) is threadedly connected to the end of the long rod bolt (12).
2. The combined box-type transformer cabinet according to claim 1, characterized in that: The cabinet (1) is further integrated with a high-voltage isolating switch, a combination of electrical components, an instrument, and a mutual inductor, and the cabinet door (2) is integrated with a door lock.
3. The combined box-type transformer cabinet according to claim 2, characterized in that: The heat dissipation port (5) is riveted to the back of the cabinet (1), and the joint (6) is welded to the back of the cabinet (1).
4. The combined box-type transformer cabinet according to claim 3, characterized in that: The docking piece (7) is arranged vertically, the pin holes (8) are arranged horizontally, and the through holes (9) are connected to all the pin holes (8) on the docking piece (7).
5. The combined box-type transformer cabinet according to claim 4, characterized in that: The connecting plate (10) is made of ceramic, and is riveted to the back of the cabinet (1).
6. The combined box-type transformer cabinet according to claim 5, characterized in that: The pin rod (11) is threadedly connected to the connecting plate (10), and the long rod bolt (12) vertically penetrates the connecting piece (7).