Multi-port AC power transmission and distribution flexible interconnection device

Abstract

The utility model discloses a multi-port alternating current power transmission and distribution flexible interconnection device, relates to the technical field of alternating current power grids, and aims to solve the problem that the normal use of the device is influenced due to severe use environment and relatively high corresponding dustproof, waterproof and heat dissipation loads when the existing interconnection device is used outdoors. A voltage source inverter body is arranged on one side of the interior of the port shell, mounting ports are formed in one side of the port shell at equal intervals, interconnection ports are fixedly connected to the interiors of the multiple mounting ports, one side of the interior of the port shell is provided with one-way inverter bodies at equal intervals, and a service port is formed in one side of the port shell. The multi-port AC power transmission and distribution flexible interconnection device disclosed by the utility model has the effects of solving the problem that the existing interconnection device is insufficient in dustproof, waterproof and heat dissipation performance when being used in an outdoor severe environment, thereby improving the reliability and prolonging the service life of the multi-port AC power transmission and distribution flexible interconnection device.

Description

Technical Field

[0001] This utility model relates to the field of AC power grid technology, and in particular to a multi-port AC power transmission and distribution flexible interconnection device. Background Technology

[0002] Flexible distribution networks refer to distribution networks designed to achieve flexible closed-loop operation. Upgrading distribution networks using flexible power electronics technology is a significant trend, effectively addressing some bottlenecks in the development of traditional distribution networks. Advanced power electronics technology can construct flexible, reliable, and efficient distribution networks, improving the power quality, reliability, and operational efficiency of urban distribution systems. It can also cope with the volatility of traditional loads and proportional renewable energy sources. Interconnection devices are required to connect the distribution network to the grid.

[0003] Most distribution network flexible interconnection devices are usually installed outdoors. Their core function is to achieve power mutual assistance between lines. Therefore, the ideal installation location is the intersection of two feeders or the line node that requires power support. When existing interconnection devices are used outdoors, the corresponding dustproof, waterproof and heat dissipation loads are relatively high due to the harsh operating environment, which affects the normal use of the device. Utility Model Content

[0004] This utility model discloses a multi-port AC power transmission and distribution flexible interconnection device, which aims to solve the technical problem that existing interconnection devices are used outdoors in harsh environments, resulting in high dustproof, waterproof, and heat dissipation loads that affect the normal use of the device.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a multi-port AC power transmission and distribution flexible interconnection device, comprising a port housing, a voltage source inverter body disposed on one side of the port housing, mounting ports being equally spaced on one side of the port housing, and interconnection ports being fixedly connected to the interior of multiple mounting ports, a unidirectional inverter body being equally spaced on one side of the port housing, a maintenance port being provided on one side of the port housing, and a tooling cover plate being bolted to the interior of the maintenance port, a ventilation module being disposed on the port housing, and the ventilation module including a protective frame, an air inlet and an air outlet being provided on both sides of the port housing, and an air inlet filter plate and a heat dissipation air outlet filter plate being fixedly connected to the interior of the air inlet and the air outlet, respectively, and a drain outlet being equally spaced on one side of both the air inlet filter plate and the heat dissipation air outlet filter plate.

[0006] In a preferred embodiment, an air inlet guide frame is fixedly connected to the side of the port housing near the air inlet, and the air inlet guide frame is located inside the port housing. Two tooling support plates are fixedly connected to one side of the air inlet guide frame. Two tooling support plates are provided with circular holes at equal intervals on one side of each of the two tooling support plates. Air direction adjustment plates are connected to the interiors of the two opposing circular holes at equal intervals via bearings.

[0007] In a preferred embodiment, an air outlet guide frame is fixedly connected to the side of the port housing near the air outlet, and the air outlet guide frame is located inside the port housing. A cooling fan is provided on the air outlet guide frame. The same airflow guide plate is fixedly connected to the opposite side of the air outlet guide frame and the air inlet guide frame. One side of the protective frame is fixedly connected to one side of the tooling cover plate.

[0008] In a preferred embodiment, rotating blocks are movably connected to both sides of the plurality of wind direction adjustment plates, and a pull rope is fixedly connected to one side of two adjacent rotating blocks. Two limiting rollers are fixedly connected to the side of the tooling cover plate near the protective frame, and the pull rope abuts against the outside of the limiting rollers. Two tooling blocks are fixedly connected to one side of the tooling cover plate, and two tooling blocks each have a second circular hole on one side. The inside of the two second circular holes is connected to the same rotating cylinder through a bearing. Two winding reels are fixedly connected to both ends of the rotating cylinder. One end of the pull rope is wound inside the winding reel. A general-purpose motor is provided on one side of the tooling cover plate. The drive end of the general-purpose motor and the outside of the rotating cylinder are both fixedly connected to pulleys, and the outside of the two pulleys are slidably connected to the same belt.

[0009] In a preferred embodiment, a cleaning module is provided on the outside of the port housing, and the cleaning module includes two limiting rails, which are fixedly connected to one side of the port housing. Horizontal reciprocating sliders are slidably connected inside the two limiting rails. A support plate is fixedly connected to one side of each of the two horizontal reciprocating sliders, and protective plates are fixedly connected to both sides of the port housing.

[0010] In a preferred embodiment, each of the two support plates has two smooth holes on one side, and an adaptive smooth rod is slidably connected inside each of the smooth holes. A telescopic spring is fixedly connected to one side of each of the adaptive smooth rods, and one side of the telescopic spring is fixedly connected to one side of the support plate. One end of each of the two adaptive smooth rods on the same side is fixedly connected to the same cleaning brush plate.

[0011] In a preferred embodiment, a rack is fixedly connected to both sides of the port housing, and the rack is located above the limiting track. A bidirectional drive motor is fixedly connected to one side of each of the two horizontal reciprocating sliders. A linkage gear is fixedly connected to the drive end of each of the two bidirectional drive motors, and the linkage gear meshes with the rack.

[0012] As can be seen from the above, the multi-port AC power transmission and distribution flexible interconnection device provided by this utility model has efficient and controllable directional heat dissipation capability. By setting independent air inlet guide frames and air outlet guide frames, and cooperating with the air guide plate, a clear and smooth directional ventilation path is formed inside the device. The air inlet filter plate and the heat dissipation air outlet filter plate can effectively block particulate pollutants such as dust and willow catkins from the external environment from entering the device, keeping the inside clean and preventing dust accumulation from causing the device to overheat or short circuit. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the main structure of a multi-port AC power transmission and distribution flexible interconnection device proposed in this utility model;

[0014] Figure 2 This is a schematic diagram of the ventilation module structure of a multi-port AC power transmission and distribution flexible interconnection device proposed in this utility model;

[0015] Figure 3 This is a schematic diagram of the ventilation module structure of a multi-port AC power transmission and distribution flexible interconnection device proposed in this utility model.

[0016] Figure 4 for Figure 3 A magnified structural diagram of part A;

[0017] Figure 5 This is a schematic diagram of the cleaning module structure of a multi-port AC power transmission and distribution flexible interconnection device proposed in this utility model.

[0018] In the attached diagram: 1. Port housing; 2. Tooling cover plate; 3. Single-phase inverter body; 4. Interconnection port; 5. Voltage source inverter body; 6. Ventilation module; 601. Protective frame; 602. Inlet air guide frame; 603. Outlet air guide frame; 604. Heat dissipation outlet filter plate; 605. Drain outlet; 606. Inlet air filter plate; 607. Airflow guide plate; 608. Tooling support plate; 609. Airflow adjustment plate; 610. General-purpose motor; 611. Belt 612. Rotating cylinder; 613. Cooling fan; 614. Limiting roller; 615. Pull rope; 616. Rotating block; 617. Tooling block; 618. Rewinding reel; 7. Cleaning module; 701. Protective plate; 702. Toothed rod; 703. Limiting track; 704. Linkage gear; 705. Horizontal reciprocating slider; 706. Bidirectional drive motor; 707. Support plate; 708. Adaptive slide bar; 709. Telescopic spring; 710. Cleaning brush plate. Detailed Implementation

[0019] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0020] The multi-port AC power transmission and distribution flexible interconnection device disclosed in this utility model is mainly applied to scenarios where existing interconnection devices are used outdoors, and the corresponding dustproof, waterproof, and heat dissipation loads are relatively high due to the harsh operating environment, which affects the normal use of the device.

[0021] Reference Figures 1-4 A multi-port AC power transmission and distribution flexible interconnection device includes a port housing 1. A voltage source inverter body 5 is provided on one side of the port housing 1. Installation ports are opened at equal intervals on one side of the port housing 1, and interconnection ports 4 are fixedly connected inside the multiple installation ports. A unidirectional inverter body 3 is arranged at equal intervals on one side of the port housing 1. A maintenance port is opened on one side of the port housing 1, and a tooling cover plate 2 is bolted to the inside of the maintenance port. A ventilation module 6 is provided on the port housing 1, and the ventilation module 6 includes a protective frame 601. An air inlet and an air outlet are opened on both sides of the port housing 1, and an air inlet filter plate 606 and a heat dissipation air outlet filter plate 604 are fixedly connected inside the air inlet and the air outlet, respectively. Drainage outlets 605 are opened at equal intervals on one side of both the air inlet filter plate 606 and the heat dissipation air outlet filter plate 604.

[0022] Reference Figures 1-4 In a preferred embodiment, an air inlet guide frame 602 is fixedly connected to the side of the port housing 1 near the air inlet, and the air inlet guide frame 602 is located inside the port housing 1. Two tooling support plates 608 are fixedly connected to one side of the air inlet guide frame 602. Two tooling support plates 608 are provided with circular holes at equal intervals on one side of each of the two tooling support plates 608. The interiors of the two opposing circular holes are connected to air direction adjustment plates 609 at equal intervals via bearings.

[0023] Reference Figures 1-4 In a preferred embodiment, an air outlet guide frame 603 is fixedly connected to the side of the port housing 1 near the air outlet, and the air outlet guide frame 603 is located inside the port housing 1. A cooling fan 613 is provided on the air outlet guide frame 603. The same air guide plate 607 is fixedly connected to the opposite side of the air outlet guide frame 603 and the air inlet guide frame 602. One side of the protective frame 601 is fixedly connected to one side of the tooling cover plate 2.

[0024] Reference Figures 1-4In a preferred embodiment, rotating blocks 616 are movably connected to both sides of multiple wind direction adjustment plates 609, and a pull rope 615 is fixedly connected to one side of two adjacent rotating blocks 616. Two limiting rollers 614 are fixedly connected to the side of the tooling cover plate 2 near the protective frame 601. The pull rope 615 abuts against the outside of the limiting rollers 614. Two tooling blocks 617 are fixedly connected to one side of the tooling cover plate 2. Two round holes are opened on one side of the two tooling blocks 617. The inside of the two round holes 617 is connected to the same rotating cylinder 612 through bearings. Two winding reels 618 are fixedly connected to both ends of the rotating cylinder 612. One end of the pull rope 615 is wound inside the winding reel 618. A general-purpose motor 610 is provided on one side of the tooling cover plate 2. The drive end of the general-purpose motor 610 and the outside of the rotating cylinder 612 are both fixedly connected to pulleys. The outside of the two pulleys is slidably connected to the same belt 611.

[0025] In specific application scenarios, when dissipating heat from port housing 1, the external cold air, under the suction of the cooling fan 613, first passes through the inlet filter plate 606 to filter dust. The filtered clean cold air then enters the inlet guide frame 602 and is guided into the port housing 1, flowing through the unidirectional inverter body 3, voltage source inverter body 5, and other heat-generating core components. Forced convection generated by the suction removes a large amount of heat. The heated air, driven by the cooling fan 613, is guided through the outlet guide frame 603 and finally discharged outside the housing through the heat dissipation outlet filter plate 604, forming an independent and efficient heat dissipation airflow from left to right. To reduce the load on the filter screen and the impact of external moisture and other external dust in extreme external environments, this heat dissipation airflow is designed as follows: The misalignment allows for path guidance of incoming external air, enhancing waterproofing and dustproofing capabilities, preventing excessive filter load, maintaining excellent heat dissipation efficiency, and protecting the cooling fan 613 from external sand and moisture. When the airflow angle needs adjustment, the universal motor 610 drives the rotating cylinder 612 via the belt 611, which in turn drives the reel 618 to wind up and unwind the pull rope 615. The pull rope 615 pulls a series of rotating blocks 616, which in turn cause all airflow adjustment plates 609 to rotate synchronously around their bearing fulcrum, thereby changing the airflow angle and ensuring uniform heat dissipation inside the housing. Through the ventilation module 6, the insufficient dustproofing, waterproofing, and heat dissipation performance of existing interconnected devices in harsh outdoor environments is solved, thus improving their reliability and service life.

[0026] Reference Figure 1 , Figure 2 and Figure 5In a preferred embodiment, a cleaning module 7 is provided on the outside of the port housing 1, and the cleaning module 7 includes two limiting rails 703. The limiting rails 703 are fixedly connected to one side of the port housing 1. Horizontal reciprocating sliders 705 are slidably connected inside the two limiting rails 703. A support plate 707 is fixedly connected to one side of each of the two horizontal reciprocating sliders 705. Protective plates 701 are fixedly connected to both sides of the port housing 1.

[0027] Reference Figure 1 , Figure 2 and Figure 5 In a preferred embodiment, two smooth holes are provided on one side of each of the two support plates 707, and adaptive smooth rods 708 are slidably connected inside the multiple smooth holes. A telescopic spring 709 is fixedly connected to one side of each of the multiple adaptive smooth rods 708. One side of the telescopic spring 709 is fixedly connected to one side of the support plate 707. One end of each of the two adaptive smooth rods 708 located on the same side is fixedly connected to the same cleaning brush plate 710.

[0028] Reference Figure 1 , Figure 2 and Figure 5 In a preferred embodiment, a rack 702 is fixedly connected to both sides of the port housing 1, and the rack 702 is located above the limiting track 703. A bidirectional drive motor 706 is fixedly connected to one side of each of the two horizontal reciprocating sliders 705. A linkage gear 704 is fixedly connected to the drive end of each of the two bidirectional drive motors 706, and the linkage gear 704 meshes with the rack 702.

[0029] In specific application scenarios, during use, the bidirectional drive motor 706 is intermittently started. The linkage gear 704 on its output shaft meshes with the rack 702 fixed on the port housing 1. The rotational motion of the gear is converted into the linear reciprocating motion of the horizontal reciprocating slider 705 within the limit track 703. The horizontal reciprocating slider 705 drives the support plate 707 and the cleaning brush plate 710 mounted on it to move together. Under the pressure of the telescopic spring 709, the cleaning brush plate 710 is always in close contact with the outer surface of the air inlet filter plate 606 or the heat dissipation air outlet filter plate 604. When it moves back and forth, the bristles scrape off the dust attached to the filter screen surface. The adaptive slide rod 708 and the telescopic spring 709 form a floating connection mechanism that can adapt to the slight unevenness that may exist on the surface of the housing, ensuring that the cleaning brush plate 710 is in full contact with the filter plate surface and ensuring the cleaning effect. The cleaning module 7 is used to maintain the permeability of the filter plate and prevent heat dissipation from being affected by dust blockage.

[0030] Working principle: When dissipating heat from port housing 1, the external cold air, under the suction of the cooling fan 613, first passes through the inlet air filter plate 606 to filter dust. The filtered clean cold air enters the inlet air guide frame 602 and is guided into the port housing 1, flowing through the unidirectional inverter body 3, voltage source inverter body 5, and other heat-generating core components. Forced convection carries away a large amount of heat. The heated air, driven by the cooling fan 613, is guided through the outlet air guide frame 603 and finally discharged outside the housing through the heat dissipation outlet air filter plate 604, forming a... A single, independent, and highly efficient cooling air duct runs from left to right. To reduce the load on the filter and mitigate the effects of external moisture and dust in harsh environments, the air duct is designed with a staggered layout. This guides the incoming air, enhancing waterproofing and dustproofing capabilities, preventing excessive filter load, maintaining excellent heat dissipation efficiency, and protecting the cooling fan 613 from external sand and moisture. When the airflow angle needs adjustment, a general-purpose motor 610 drives a rotating cylinder 612 via a belt 611. The winding reel 618 engages and disengages the pull rope 615. The pull rope 615 pulls a series of rotating blocks 616, which in turn cause all the wind direction adjustment plates 609 to rotate synchronously around their bearing fulcrum, thereby changing the wind direction angle and ensuring uniform heat dissipation inside the housing. During operation, the bidirectional drive motor 706 is intermittently activated. The linkage gear 704 on its output shaft meshes with the rack 702 fixed on the port housing 1. The rotational motion of the gear is converted into the linear reciprocating motion of the horizontal reciprocating slider 705 within the limiting track 703. 705 drives the support plate 707 and the cleaning brush plate 710 mounted on it to move together. Under the pressure of the telescopic spring 709, the cleaning brush plate 710 always keeps in close contact with the outer surface of the air inlet filter plate 606 or the heat dissipation air outlet filter plate 604. When it moves back and forth, the bristles scrape off the dust attached to the filter screen surface. The adaptive slide rod 708 and the telescopic spring 709 form a floating connection mechanism, which can adapt to the slight unevenness that may exist on the surface of the housing, ensuring that the cleaning brush plate 710 is in full contact with the surface of the filter plate and ensuring the cleaning effect.

[0031] The above description is merely a preferred embodiment of this utility model, but the protection scope of this utility model is not limited thereto. The substitutions may be replacements of some structures, devices, or method steps, or they may be complete technical solutions. Equivalent substitutions or modifications made based on the technical solution and inventive concept of this utility model should all be covered within the protection scope of this utility model.

Claims

1. A multi-port AC power transmission and distribution flexible interconnection device, comprising a port housing (1), characterized in that, The port housing (1) has a voltage source inverter body (5) on one side inside. The port housing (1) has mounting ports at equal intervals on one side, and multiple mounting ports are fixedly connected to interconnecting ports (4). The port housing (1) has a unidirectional inverter body (3) at equal intervals on one side inside. The port housing (1) has an inspection port on one side, and the inspection port is bolted to a tooling cover plate (2). The port housing (1) has a ventilation module (6), and the ventilation module (6) includes a protective frame (601). The port housing (1) has an air inlet and an air outlet on both sides, and the air inlet and the air outlet are fixedly connected to an air inlet filter plate (606) and a heat dissipation air outlet filter plate (604). The air inlet filter plate (606) and the heat dissipation air outlet filter plate (604) are both provided with drain outlets (605) at equal intervals on one side.

2. The multi-port AC power transmission and distribution flexible interconnection device according to claim 1, characterized in that, An air inlet guide frame (602) is fixedly connected to the side of the port housing (1) near the air inlet, and the air inlet guide frame (602) is located inside the port housing (1). Two tooling support plates (608) are fixedly connected to one side of the air inlet guide frame (602). Two tooling support plates (608) are provided with circular holes at equal distances on one side of each of the two tooling support plates (608). The interiors of the two opposing circular holes are connected to air direction adjustment plates (609) at equal distances via bearings.

3. A multi-port AC power transmission and distribution flexible interconnection device according to claim 2, characterized in that, An air outlet guide frame (603) is fixedly connected to the side of the port housing (1) near the air outlet, and the air outlet guide frame (603) is located inside the port housing (1). A cooling fan (613) is provided on the air outlet guide frame (603). The same air guide plate (607) is fixedly connected to the opposite side of the air outlet guide frame (603) and the air inlet guide frame (602). One side of the protective frame (601) is fixedly connected to one side of the tooling cover plate (2).

4. A multi-port AC power transmission and distribution flexible interconnection device according to claim 3, characterized in that, Rotating blocks (616) are movably connected to both sides of the multiple wind direction adjustment plates (609), and a pull rope (615) is fixedly connected to one side of two adjacent rotating blocks (616). Two limiting rollers (614) are fixedly connected to the side of the tooling cover plate (2) near the protective frame (601). The pull rope (615) abuts against the outside of the limiting roller (614). Two tooling blocks (617) are fixedly connected to one side of the tooling cover plate (2), and each of the two tooling blocks (617) has an opening on one side. Two circular holes are connected inside the same rotating cylinder (612) via bearings. Two ends of the rotating cylinder (612) are fixedly connected to a winding reel (618). One end of the pull rope (615) is wound inside the winding reel (618). A general-purpose motor (610) is provided on one side of the tooling cover plate (2). The drive end of the general-purpose motor (610) and the outside of the rotating cylinder (612) are both fixedly connected to pulleys. The two pulleys are slidably connected to the same belt (611).

5. A multi-port AC power transmission and distribution flexible interconnection device according to claim 4, characterized in that, The port housing (1) is provided with a cleaning module (7) on its exterior. The cleaning module (7) includes two limiting rails (703). The limiting rails (703) are fixedly connected to one side of the port housing (1). Horizontal reciprocating sliders (705) are slidably connected inside the two limiting rails (703). Support plates (707) are fixedly connected to one side of the two horizontal reciprocating sliders (705). Protective plates (701) are fixedly connected to both sides of the port housing (1).

6. A multi-port AC power transmission and distribution flexible interconnection device according to claim 5, characterized in that, Two smooth holes are provided on one side of each of the two support plates (707), and adaptive smooth rods (708) are slidably connected inside the multiple smooth holes. A telescopic spring (709) is fixedly connected to one side of each of the multiple adaptive smooth rods (708). One side of the telescopic spring (709) is fixedly connected to one side of the support plate (707). One end of each of the two adaptive smooth rods (708) located on the same side is fixedly connected to the same cleaning brush plate (710).

7. A multi-port AC power transmission and distribution flexible interconnection device according to claim 6, characterized in that, Both sides of the port housing (1) are fixedly connected with racks (702), and racks (702) are located above the limiting rail (703). One side of each of the two horizontal reciprocating sliders (705) is fixedly connected with a bidirectional drive motor (706), and the drive ends of the two bidirectional drive motors (706) are fixedly connected with linkage gears (704), which mesh with racks (702).

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