Power distribution station based on intelligent phase-change switch

Abstract

The utility model provides a power distribution station based on an intelligent phase-change switch, which solves the problems of maintenance safety and the like of power distribution equipment and comprises a main table board, the main table board is movably mounted in a power distribution box, a phase-change isolating switch is mounted in the power distribution box, and a closed locking assembly opposite to the main table board is mounted in the power distribution box. The closed locking assembly is in transmission connection with the phase change isolating switch, and the outer side of the distribution box is provided with a warning assembly connected with the closed locking assembly and the phase change isolating switch. The utility model has the advantages of good use safety, stable structure and the like.

Description

Technical Field

[0001] The utility model belongs to the technical field of power distribution equipment, and in particular relates to a power distribution station based on an intelligent phase-changing switch. Background Art

[0002] During the construction of smart grids, the informatization and intelligentization of power distribution and consumption at the user-side low-voltage substations remain relatively weak, resulting in low grid management efficiency and energy utilization efficiency. Lack of proper substation planning or inability to update line assignments in a timely manner as user topology changes over time often leads to overloaded low-voltage substation lines and three-phase imbalance. Severe three-phase imbalance can damage transformers, leading to greater safety concerns and equipment damage, seriously threatening the safe operation of the grid. Furthermore, existing distribution stations lack electrical separation and warning systems during maintenance, posing a safety hazard to maintenance personnel.

[0003] In order to address the shortcomings of the existing technology, people have conducted long-term exploration and proposed various solutions. For example, a Chinese patent document discloses a three-phase imbalance adjustment mechanism for a transformer substation [202211560708.3], which includes a fixed assembly connected to a frame assembly; the fixed assembly includes a rotating motor, a rotating rod connected to the outer surface of the rotating motor, a connecting support plate connected to the rotating rod, a fixed plate connected to the front side of the outer end of the rotating rod, a movable plate connected to the middle end of the inner wall of the fixed plate, and a spring member connected to the lower end of the movable plate, the spring member including a first groove plate, three sets of spring bases connected to the groove at the upper end of the first groove plate, and a spring connected to the upper end of the spring base.

[0004] The above solution solves the problem of three-phase imbalance in the low-voltage substation to a certain extent, but the solution still has many shortcomings, such as safety hazards during maintenance. Summary of the Invention

[0005] The purpose of the utility model is to solve the above problems and provide a distribution station based on intelligent phase-changing switches with reasonable design and effective improvement of maintenance safety.

[0006] To achieve the above-mentioned purpose, the present invention adopts the following technical solutions: a distribution station based on an intelligent phase-changing switch, comprising a main table top, which is movably installed in a distribution box, a phase-changing isolating switch is installed in the distribution box, a closed locking assembly opposite to the main table top is installed inside the distribution box, the closed locking assembly is transmission-connected to the phase-changing isolating switch, and a warning assembly connected to the closed locking assembly and the phase-changing isolating switch is provided on the outside of the distribution box.

[0007] In the above-mentioned distribution station based on intelligent phase-changing switch, the distribution box includes a main box body, a box cover is hinged at the front end of the main box body, a mounting guide rail extending laterally is provided on the main table top, and a flip assembly is installed between the left and right ends of the main table top and the main box body.

[0008] In the above-mentioned distribution station based on the intelligent phase-changing switch, the flip assembly includes a flip boss arranged on the inner back of the main box body, the flip boss has a built-in wire cavity, and flip swing arms are rotatably connected between the two sides of the flip boss and the two sides of the main table. Limit bars are arranged on both sides of the flip boss to limit the swing angle of the flip swing arm.

[0009] In the above-mentioned distribution station based on the intelligent phase-changing switch, the closed locking assembly includes a closed cover plate whose upper end is hinged to the distribution box, an elastic reset part is arranged between the closed cover plate and the distribution box, a closed cross bar opposite to the edge of the closed cover plate is arranged in the distribution box, and a rotary lock is installed between the closed cover plate and the closed cross bar.

[0010] In the above-mentioned distribution station based on the intelligent phase-changing switch, the phase-changing isolating switch is installed on the closed cover plate, and the switching handle of the phase-changing isolating switch is transmission-connected to the rotary lock through a transmission gear set.

[0011] In the above-mentioned distribution station based on the intelligent phase-changing switch, a linkage component and a sensor component are provided between the closed cover and the flip swing arm.

[0012] In the above-mentioned distribution station based on the intelligent phase-changing switch, the linkage component includes a linkage arm hinged to the closed cover plate, a limit slot is opened on the linkage arm, a limit block is provided on the inner side of the distribution box and is slidably plugged into the limit slot, and the end of the linkage arm is hinged to the flip swing arm through a linkage rod.

[0013] In the above-mentioned distribution station based on the intelligent phase-changing switch, the sensing component includes a contact sensor arranged between the closed cover plate and the closed cross bar, and a leakage current sensor is arranged between the main table and the back of the distribution box.

[0014] In the above-mentioned distribution station based on intelligent phase-changing switches, the warning component includes an analog-to-digital conversion module connected to a contact sensor and a leakage current sensor, the analog-to-digital conversion module is connected to an MCU module, the MCU module is equipped with an independent power supply module, and the MCU module is connected to a warning light installed on the outside of the distribution box.

[0015] In the above-mentioned distribution station based on the intelligent phase-changing switch, an outwardly extending assembly plate is provided at the port of the distribution box, and a wire threading hole is opened on the side of the distribution box.

[0016] Compared with the existing technology, the advantages of the present invention are: the closed locking component isolates the main table, and the phase-changing isolating switch provides electrical spacing to ensure that the main table is in a power-off state during maintenance, thereby ensuring maintenance safety; the main table can move relative to the distribution box, and when the closed locking component is unlocked, the main table moves forward to facilitate maintenance and replacement of circuit components; multiple sensors monitor the internal status of the distribution box in real time, and send an alarm signal in time when a leakage occurs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural diagram of the utility model;

[0018] Figure 2 It is a structural schematic diagram of the utility model from another perspective;

[0019] Figure 3 It is a structural sectional view of the utility model;

[0020] Figure 4 It is a structural block diagram of the utility model;

[0021] As shown in the figure, the main table 1, the distribution box 2, the main box body 21, the box cover 22, the mounting guide rail 23, the flip boss 24, the wire cavity 25, the flip swing arm 26, the limit bar 27, the phase-changing isolating switch 3, the closed locking assembly 4, the closed cover plate 41, the elastic reset part 42, the closed cross bar 43, the rotary lock 44, the transmission gear set 45, the warning assembly 5, the analog-to-digital conversion module 51, the MCU module 52, the power module 53, the warning light 54, the linkage assembly 6, the linkage arm 61, the limit slot 62, the limit block 63, the linkage rod 64, the sensor assembly 7, the contact sensor 71, and the leakage current sensor 72. DETAILED DESCRIPTION

[0022] The present invention will be further described in detail below with reference to the accompanying drawings and specific implementation methods.

[0023] like Figure 1-4 As shown, a distribution station based on an intelligent phase-changing switch includes a main table 1 for installing circuit components. The main table 1 is movably installed in a distribution box 2 and remains in a suspended state. A phase-changing isolating switch 3 is installed in the distribution box 2. The phase-changing isolating switch 3 cooperates with a relay to realize power outage inside the distribution box 2, and isolates the equipment or circuit that needs maintenance from the power supply; a closed locking component 4 opposite to the main table 1 is installed inside the distribution box 2 to realize secondary isolation. The closed locking component 4 is transmission-connected to the phase-changing isolating switch 3 to ensure unlocking in the power-off state. A warning component 5 connected to the closed locking component 4 and the phase-changing isolating switch 3 is provided on the outside of the distribution box 2. The warning component 5 cooperates with the sensor element to monitor the internal state of the distribution box 2 in real time and issue a leakage alarm in time.

[0024] Specifically, similar to conventional power distribution structures, the distribution box 2 in this application includes a main box body 21, with a box cover 22 hingedly connected to the front end of the main box body 21. Laterally extending mounting rails 23 are provided on the main table 1 for sliding assembly of units such as relays. Flip assemblies are installed between the left and right ends of the main table 1 and the main box body 21. The main table 1 can be adjusted relative to the main box body 21 by the flip assembly, thereby facilitating subsequent maintenance and internal wiring.

[0025] Specifically, the flip assembly includes a flip boss 24 located on the inner back of the main housing 21. This boss 24 has a built-in wire cavity 25 for inserting external wires. Flip swing arms 26 are rotatably connected to the sides of the flip boss 24 and the main deck 1. When the flip swing arms 26 swing relative to the flip boss 24, the main deck 1 also moves back and forth while maintaining an upright position. Limit bars 27 are located on both sides of the flip boss 24 to limit the swing angle of the flip swing arms 26, ensuring that the main deck 1 does not come into contact with the interior of the distribution box 2 during movement.

[0026] Furthermore, unlike conventional openable and closeable door structures, the closure and locking assembly 4 in this application includes a closure cover 41 hinged at its upper end to the distribution box 2. An elastic reset member 42 is disposed between the closure cover 41 and the distribution box 2. When the closure cover 41 is unlocked, it automatically lifts upward, thereby ensuring that the internal cavity of the main box 21 remains open. A closure crossbar 43, opposing the edge of the closure cover 41, is disposed within the distribution box 2 to ensure a sealed lower end. A rotary lock 44 is mounted between the closure cover 41 and the closure crossbar 43, and this rotary lock 44 is linked to the phase-changing disconnector 3.

[0027] Furthermore, the phase-changing isolating switch 3 is installed on the closed cover plate 41, and the switching handle of the phase-changing isolating switch 3 is connected to the rotary lock 44 through the transmission gear set 45. The phase-changing isolating switch 3 adopts a handle type for convenient operation and switching. It closes or opens the switch through rotation and static contacts, and is usually equipped with an arc extinguishing system.

[0028] In addition, a linkage assembly 6 and a sensor assembly 7 are provided between the closed cover 41 and the flip arm 26. When the closed cover 41 flips, the linkage assembly 6 drives the flip arm 26 to swing, and the main table 1 also moves accordingly, thus adjusting the orientation of the main table 1 without the need for an additional drive structure.

[0029] To limit the movement of linkage assembly 6, linkage assembly 6 includes a linkage arm 61 hinged to the closed cover 41. A limit slot 62 is defined in linkage arm 61, and a limit block 63 is provided on the inside of distribution box 2, slidably engaging with limit slot 62. When closed cover 41 swings, linkage arm 61 is pulled and slides relative to limit block 63. The end of linkage arm 61 is hinged to the tilting swing arm 26 via a linkage rod 64. As linkage rod 64 swings, it translates relative to distribution box 2, causing tilting swing arm 26 to flip accordingly.

[0030] It can be seen that the sensor component 7 monitors the interior of the distribution box 2 in real time, specifically including a contact sensor 71 arranged between the closed cover 41 and the closed cross bar 43 for sensing the opening and closing state of the closed cover 41, and a leakage current sensor 72 is arranged between the main table 1 and the back of the distribution box 2. If a leakage occurs on the main table 1, an alarm signal will be sent in time.

[0031] Clearly, the warning assembly 5 is entirely enclosed within the enclosed cover 41 and includes an analog-to-digital conversion module 51 connected to a contact sensor 71 and a leakage current sensor 72. This module 51 is connected to an MCU module 52 to convert analog signals into digital signals. The MCU module 52 is equipped with an independent power supply module 53 to maintain the normal operation of the warning assembly 5 during power outages. The MCU module 52 is also connected to a warning light 54 mounted on the outside of the distribution box 2. The MCU module 52 is typically also connected to a 4G / 5G transmission module to transmit the alarm signal to a higher-level management platform.

[0032] Preferably, an outwardly extending assembly plate is provided at the port of the distribution box 2. When the distribution box 2 is embedded in the cavity, the assembly plate fits in the outer cavity to ensure the assembly stability of the distribution box 2. Wire holes are opened on the side of the distribution box 2, and some of the wire holes are connected to the wire cavity 25.

[0033] In summary, the principle of this embodiment is that the main table 1 moves relative to the distribution box 2 during the opening and closing process of the closed locking assembly 4, wherein the phase-changing isolating switch 3 is linked with the closed locking assembly 4 to provide electrical spacing when adjusting the circuit elements on the main table 1 to avoid load operation.

[0034] The specific embodiments described herein are merely illustrative of the spirit of the present invention. Persons skilled in the art may make various modifications, additions, or substitutions to the described specific embodiments without departing from the spirit of the present invention or exceeding the scope defined by the appended claims.

[0035] Although this document frequently uses terms such as main table 1, distribution box 2, main box body 21, box cover 22, mounting guide rail 23, flip boss 24, wire cavity 25, flip swing arm 26, limit bar 27, phase-changing isolating switch 3, closed locking assembly 4, closed cover plate 41, elastic return member 42, closed cross bar 43, rotary lock 44, transmission gear set 45, warning assembly 5, analog-to-digital conversion module 51, MCU module 52, power module 53, warning light 54, linkage assembly 6, linkage arm 61, limit slot 62, limit block 63, linkage rod 64, sensor assembly 7, contact sensor 71, leakage current sensor 72, etc., the possibility of using other terms is not excluded. The use of these terms is only for the purpose of more conveniently describing and explaining the essence of the present invention; interpreting them as any additional restrictions is contrary to the spirit of the present invention.

Claims

1. A distribution station based on an intelligent phase-changing switch, comprising a main table (1), wherein the main table (1) is movably installed in a distribution box (2), characterized in that: A phase-changing isolating switch (3) is installed in the distribution box (2), a closed locking assembly (4) opposite to the main table (1) is installed inside the distribution box (2), the closed locking assembly (4) is in transmission connection with the phase-changing isolating switch (3), and a warning assembly (5) connected to the closed locking assembly (4) and the phase-changing isolating switch (3) is provided on the outside of the distribution box (2).

2. A distribution station based on an intelligent phase-changing switch according to claim 1, characterized in that: The distribution box (2) comprises a main box body (21), a box cover (22) is hingedly connected to the front end of the main box body (21), a mounting guide rail (23) extending in the transverse direction is provided on the main table (1), and a flip assembly is installed between the left and right ends of the main table (1) and the main box body (21).

3. A distribution station based on an intelligent phase-changing switch according to claim 2, characterized in that: The flip assembly comprises a flip boss (24) arranged on the inner back of the main box body (21), the flip boss (24) having a built-in wire cavity (25), flip swing arms (26) rotatably connected between the two sides of the flip boss (24) and the two sides of the main table (1), and limit bars (27) for limiting the swing angle of the flip swing arm (26) are arranged on both sides of the flip boss (24).

4. A distribution station based on an intelligent phase-changing switch according to claim 3, characterized in that: The closed locking assembly (4) comprises a closed cover (41) whose upper end is hinged to the distribution box (2); an elastic reset member (42) is provided between the closed cover (41) and the distribution box (2); a closed cross bar (43) opposite to the edge of the closed cover (41) is provided in the distribution box (2); and a rotating lock (44) is installed between the closed cover (41) and the closed cross bar (43).

5. A distribution station based on an intelligent phase-changing switch according to claim 4, characterized in that: The phase-changing isolating switch (3) is mounted on a closed cover plate (41), and a switching handle of the phase-changing isolating switch (3) is connected to a rotary lock (44) via a transmission gear set (45).

6. A distribution station based on an intelligent phase-changing switch according to claim 4, characterized in that: A linkage assembly (6) and a sensor assembly (7) are provided between the closing cover plate (41) and the flip swing arm (26).

7. A distribution station based on an intelligent phase-changing switch according to claim 6, characterized in that: The linkage assembly (6) includes a linkage arm (61) hinged to the closed cover (41), a limiting slot (62) is provided on the linkage arm (61), a limiting block (63) is provided on the inner side of the distribution box (2) and is slidably plugged into the limiting slot (62), and the end of the linkage arm (61) is hinged to the flip swing arm (26) through a linkage rod (64).

8. The distribution station based on intelligent phase-changing switch according to claim 6, characterized in that: The sensing assembly (7) includes a contact sensor (71) arranged between the closed cover plate (41) and the closed cross bar (43), and a leakage current sensor (72) is arranged between the main table (1) and the back of the distribution box (2).

9. A distribution station based on an intelligent phase-changing switch according to claim 8, characterized in that: The warning component (5) includes an analog-to-digital conversion module (51) connected to a contact sensor (71) and a leakage current sensor (72); the analog-to-digital conversion module (51) is connected to an MCU module (52); the MCU module (52) is equipped with an independent power supply module (53); and the MCU module (52) is connected to a warning light (54) installed outside the distribution box (2).

10. A distribution station based on an intelligent phase-changing switch according to claim 1, characterized in that: An outwardly extending assembly plate is provided at the port of the distribution box (2), and a wire threading hole is provided on the side of the distribution box (2).

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