Distribution automation remote control terminal FTU

Abstract

The utility model discloses a distribution automation remote control terminal FTU, which relates to the technical field of electric power automation and comprises a waterproof cabinet, a heat dissipation module, a wireless communication module, a power supply module, a sealed box body, a control module and a load switch. The waterproof cabinet provides waterproof and dustproof protection; the control module is in data connection with the wireless communication module, receives a control command of a power distribution control center, controls a corresponding load switch to be switched on / off, and sends line monitoring data to the power distribution control center; the power supply module provides electric energy for the wireless communication module and the control module; the sealing box body is connected with the heat dissipation module through a pipeline, and hot air in the sealing box body enters the heat dissipation module to be cooled and then returns into the sealing box body to assist in heat dissipation by driving the fan. According to the utility model, the waterproof and dustproof capabilities of the FTU are ensured, the heat dissipation performance is improved, and the FTU can operate more stably.

Description

Technical Field

[0001] The utility model relates to the technical field of electric power automation, and more specifically to a distribution automation remote control terminal FTU. Background Art

[0002] Transmission and distribution lines are mostly installed on poles and towers, which are high above the ground and laid far away. Permanent faults are rarely caused by human factors. In most cases, they are transient faults caused by weather, lightning, short circuit faults, etc. Fault elimination only requires closing the distribution switch to restore normal power supply. The distribution switch monitoring terminal (FTU) is a switch monitoring device installed next to the switch. It can automatically close / open the distribution switch according to the control instructions of the distribution control center. It is of great significance to timely eliminate transmission and distribution line faults and maintain stable operation of the power grid.

[0003] However, most FTUs are installed outdoors. Affected by strong winds, rainstorms, sandstorms, and dense fog, water and dust accumulate inside the FTU, causing it to not work properly. The closed structure of the FTU results in poor heat dissipation performance, and the internal circuits, switches, monitoring, and control modules generate heat, causing the insulating parts of the electronic components to work at high temperatures, affecting the stable operation of the FTU.

[0004] Therefore, how to improve the waterproof and dustproof capabilities of FTU while ensuring its heat dissipation performance is a problem that technical personnel in this field need to solve urgently. Utility Model Content

[0005] In view of this, the utility model provides a distribution automation remote control terminal FTU, which improves the waterproof and heat dissipation performance of the FTU by arranging a waterproof cabinet and a heat dissipation device outside the cabinet to ensure its normal and stable operation.

[0006] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0007] The utility model discloses a power distribution automation remote control terminal FTU, comprising: a waterproof cabinet, a heat dissipation module, a wireless communication module, a power module, a sealed box, a control module, and a load switch;

[0008] The heat dissipation module is fixedly installed outside the waterproof cabinet; the wireless communication module, the power module, and the sealed box are fixedly installed inside the waterproof cabinet; the control module and the load switch are fixedly installed inside the sealed box;

[0009] The control module is connected to the wireless communication module through the communication interface provided on the sealed box, thereby receiving the control command of the power distribution control center, controlling the corresponding load switch to close / open, and sending the line monitoring data to the power distribution control center;

[0010] The power supply module is electrically connected to the wireless communication module and is electrically connected to the control module via a power supply interface provided on the sealed box body, so as to provide power to the wireless communication module and the control module;

[0011] The sealed box is connected to the heat dissipation module pipeline, and the fan is driven to allow the hot air in the sealed box to enter the heat dissipation module for cooling and then return to the sealed box to assist in heat dissipation.

[0012] Furthermore, the waterproof cabinet includes: a cabinet body and a cabinet door; the top of the cabinet body has a protruding rainproof outer edge, the bottom is provided with a cable hole, and the side is provided with a heat dissipation pipe hole and an antenna hole; a sealing ring is provided between the cabinet door and the cabinet body, which is sealed and waterproof after being locked and closed.

[0013] Furthermore, the heat dissipation module is composed of a heat dissipation tube and heat dissipation fins arranged on the heat dissipation tube; and the sealed box body is provided with an air inlet and an air outlet adapted to the heat dissipation tube.

[0014] Furthermore, a terminal corresponding to the load switch terminal is arranged outside the sealed box body, the terminal is electrically connected to the corresponding terminal, and the connecting line is insulated and sealed from the sealed box body.

[0015] Furthermore, the power module includes: a charge and discharge control unit and a battery; the input end of the charge and discharge control unit is connected to the power supply line, the output end is connected to the wireless communication module and the control module, and the charge / discharge end is connected to the battery.

[0016] Furthermore, the control module includes: a main controller, a driving mechanism, and a sensor unit;

[0017] The sensing unit includes a voltage sensor, a current sensor, and a temperature sensor;

[0018] The main controller is electrically connected to the sensor unit, the drive mechanism, and the drive fan; the operating voltage, current, and temperature of each load switch are monitored by the sensor unit, the drive mechanism is driven according to a control command, and the drive fan is controlled to rotate according to the temperature.

[0019] Furthermore, the driving mechanism includes: a fixed part, a reciprocating part, a driving wheel, an energy storage spring, a closing trigger, an opening trigger, a driving worm gear, and an energy storage motor;

[0020] The fixed part is provided with a groove matched with the reciprocating part, and the reciprocating part is driven to move along the groove by the driving wheel disc; the fixed part is provided with a fixed shaft, and the driving wheel disc, the energy storage spring, and the driving worm gear are sequentially sleeved on the fixed shaft, and are limited by a limiting ring and can rotate circumferentially along the fixed shaft;

[0021] The driving wheel disc is provided with a limiting protrusion adapted to the closing trigger and the opening trigger; the driving wheel disc is provided with a bayonet so as to be engaged with one end of the energy storage spring;

[0022] A worm is fixed on the output shaft of the energy storage motor, and the energy storage motor drives the worm to rotate, thereby driving the driving worm wheel to rotate; the driving worm wheel is provided with a bayonet to engage with the other end of the energy storage spring, and the driving worm wheel rotates to cause the energy storage spring to store energy, thereby providing the driving wheel with the instantaneous driving force required for closing / opening the switch.

[0023] Furthermore, the reciprocating portion is connected to the load switch via an insulating connecting rod, thereby controlling the closing / opening of the load switch.

[0024] Furthermore, the reciprocating motion part is a rectangular frame, and racks are provided on the inner sides of both sides of the rectangular frame that are slidably connected with the groove; driving teeth matched with the racks are provided on the outer peripheral side of a fan-shaped area of ​​the driving wheel to drive the rectangular frame to reciprocate.

[0025] Furthermore, the central angle of the sector-shaped area is less than 180 degrees, and the limiting protrusion is located on the straight edge of the sector-shaped area.

[0026] It can be seen from the above technical scheme that compared with the prior art, the utility model discloses a distribution automation remote control terminal FTU, in which the terminal cabinet has a waterproof outer edge, and the cabinet line openings and cabinet doors are provided with sealing rings, which effectively avoid the adverse effects of strong winds and heavy rains on the operation of equipment in the cabinet; at the same time, the main control controller, load switch, etc. are all placed in an airtight sealed box, and the gas in the box enters the external radiator for cooling through a driven fan and a pipe. The heat dissipation is assisted by gas circulation, thereby reducing the operating temperature of the equipment in the box and ensuring the stable operation of the RTU terminal. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the following description are only embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0028] Figure 1 This is a schematic diagram of the overall structure provided by the utility model.

[0029] Figure 2 This is a side view of the driving mechanism provided by the utility model.

[0030] Figure 3 This is a top view of the driving mechanism provided by the utility model.

[0031] In the figure, 1. waterproof cabinet; 2. heat dissipation module; 3. wireless communication module; 4. sealed box; 5. sealed box; 6. control module; 7. load switch; 8. driving fan; 61. main controller; 62. driving mechanism; 621. fixed part; 6211. fixed shaft; 6212. limiting ring; 622. reciprocating part; 6221. rack; 623. driving wheel; 6231. limiting protrusion; 6232. driving tooth; 624. energy storage spring; 625. closing trigger; 626. opening trigger; 627. driving worm gear; 628. energy storage motor; 6281. worm; 629. insulating connecting rod. DETAILED DESCRIPTION

[0032] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0033] The utility model embodiment discloses a distribution automation remote control terminal FTU, such as Figure 1 As shown, it includes: a waterproof cabinet 1, a heat dissipation module 2, a wireless communication module 3, a power module 4, a sealed box 5, a control module 6, and a load switch 7;

[0034] The heat dissipation module 2 is fixedly installed outside the waterproof cabinet 1; the wireless communication module 3, the power module 4, and the sealed box 5 are fixedly installed inside the waterproof cabinet 1; the control module 6 and the load switch 7 are fixedly installed inside the sealed box 5;

[0035] The control module 6 is connected to the wireless communication module 3 through the communication interface and the connection line provided on the sealed box 5, thereby receiving the control command of the power distribution control center, controlling the corresponding load switch 7 to close / open, and sending the line monitoring data to the power distribution control center;

[0036] The power module 4 is electrically connected to the wireless communication module 3 and is electrically connected to the control module 6 through the power supply interface and the connection line provided on the sealed box 5, so as to provide power to the wireless communication module 3 and the control module 6;

[0037] The sealed box 5 is connected to the heat dissipation module 2 by a pipeline. By driving the fan 8, the hot air in the sealed box 5 enters the heat dissipation module 2 for cooling and then returns to the sealed box 5 to assist in heat dissipation.

[0038] In a specific embodiment, the waterproof cabinet 1 includes: a cabinet body and a cabinet door; the top of the cabinet body has a protruding rainproof outer edge, the bottom is provided with a cable hole, the side is provided with a heat dissipation pipe hole and an antenna hole, and the cable hole, the heat dissipation pipe hole and the antenna hole are all provided with sealing rings; a sealing ring is provided between the cabinet door and the cabinet body, which is sealed and waterproof after being locked and closed.

[0039] In a specific embodiment, the heat dissipation module 2 is composed of a heat dissipation pipe and heat dissipation fins arranged on the heat dissipation pipe; the sealed box body 5 is provided with an air inlet and an air outlet adapted to the heat dissipation pipe, and the sealed box body 5 is an airtight box body composed of an upper cover and a bottom shell. After the control module 6, the load switch 7 and the connecting lines are installed, the air therein is extracted through the exhaust hole and sulfur hexafluoride gas is injected, thereby effectively reducing the electric sparks generated when the load switch 7 is actuated and improving the service life.

[0040] In a specific embodiment, a terminal corresponding to the terminal post of the load switch 7 is arranged outside the sealed box 5, the terminal post is electrically connected to the corresponding terminal, and the connection line and the sealed box 5 are insulated and sealed.

[0041] In a specific embodiment, the power module 4 includes: a charge and discharge control unit and a battery; the input end of the charge and discharge control unit is connected to the power supply line, the output end is connected to the wireless communication module 3 and the control module 6, and the charge / discharge end is connected to the battery, so that when a power outage occurs, the battery is used to supply power to ensure that the FTU works normally and executes the instructions of the distribution control center.

[0042] In a specific embodiment, the control module 6 includes: a main controller 61, a driving mechanism 62, and a sensor unit;

[0043] The sensing unit includes a voltage sensor, a current sensor, and a temperature sensor;

[0044] The main controller 61 is electrically connected to the sensor unit, the drive mechanism 62, and the drive fan 8; the working voltage, current, and temperature of each load switch 7 are monitored by the sensor unit, the drive mechanism 62 is driven according to the control command, and the drive fan 8 is driven to rotate according to the temperature control.

[0045] In a specific embodiment, Figure 2-3 As shown, the driving mechanism 62 includes: a fixed portion 621, a reciprocating portion 622, a driving wheel 623, an energy storage spring 624, a closing trigger 625, an opening trigger 626, a driving worm gear 627, and an energy storage motor 628;

[0046] The fixed part 621 is provided with a groove matched with the reciprocating part 622, and the reciprocating part 622 is driven to move along the groove by the driving wheel 623; the fixed part 621 is provided with a fixed shaft 6211, and the driving wheel 623, the energy storage spring 624, and the driving worm gear 627 are sequentially sleeved on the fixed shaft 6211, and are limited by the limiting ring 6212, and can rotate circumferentially along the fixed shaft 6211;

[0047] The driving wheel disc 623 is provided with a limiting protrusion 6231 adapted to the closing trigger 625 and the opening trigger 626; the driving wheel disc 623 is provided with a bayonet so as to be engaged with one end of the energy storage spring 624;

[0048] A worm 6281 is fixed on the output shaft of the energy storage motor 628, and the energy storage motor 628 drives the worm 6281 to rotate, thereby driving the driving worm wheel 627 to rotate; the driving worm wheel 627 is provided with a bayonet so as to engage with the other end of the energy storage spring 624. The rotation of the driving worm wheel 627 causes the energy storage spring 624 to store energy, thereby providing the driving wheel 623 with the instantaneous driving force required for closing / opening the switch.

[0049] Furthermore, the reciprocating portion 622 is connected to the load switch 7 via the insulating connecting rod 629 , thereby controlling the closing / opening of the load switch 7 .

[0050] Furthermore, the reciprocating motion part 622 is a rectangular frame, and racks 6221 are provided on the inner sides of both sides of the rectangular frame slidingly connected with the groove; driving teeth 6232 matched with the racks 6221 are provided on the outer peripheral side of a fan-shaped area of ​​the driving wheel 623 to drive the rectangular frame to reciprocate.

[0051] Furthermore, the central angle of the sector-shaped area is less than 180 degrees, so that the driving tooth 6232 does not engage with the two racks 6221 on the reciprocating part 622 at the same time; the center of the limiting protrusion 6231 is located on the straight edge of the sector-shaped area, so that when the limiting protrusion 6231 is limited by the closing trigger 625 / opening trigger 626, the reciprocating part 622 is in the maximum position of the reciprocating motion.

[0052] The process of the control module 6 controlling the closing / opening of the load switch 7 is as follows:

[0053] When the load switch 7 is closed, the limit protrusion 6231 on the driving wheel 623 is limited by the movable limit rod of the opening trigger 626, and the main controller 61 receives the control command from the distribution control center or performs the disconnection operation based on the working voltage, current and temperature of the load switch 7. During the disconnection operation, the main controller 61 first sends a control pulse to the opening trigger 626, and the movable limit rod of the opening trigger 626 completes a contraction and reset movement. When contracting, the limit protrusion 6231 is not limited by the opening trigger 626, and the driving wheel 623 rotates half a circle by the elastic force of the energy storage spring 624 and is limited by the closing trigger 625. When the driving wheel 623 rotates, the reciprocating part 622 is moved by the rack on one side of the reciprocating part 622, and then the load switch 7 is controlled to be disconnected through the insulating connecting rod 629; then the main controller 61 drives the energy storage motor 628 to rotate, and the worm 6281 drives the driving worm wheel 627 to rotate to increase the elastic force of the energy storage spring 624. When the driving load of the driving energy storage motor 628 is greater than the set threshold, it means that the elastic force of the energy storage spring 624 is large enough to meet the driving force requirement of the driving wheel 623, and the main controller 61 controls the energy storage motor 628 to stop rotating.

[0054] When the load switch 7 is disconnected, the limit protrusion 6231 on the driving wheel 623 is limited by the movable limit rod of the closing trigger 625, and the main controller 61 receives the control command from the distribution control center or performs the closing operation based on the working voltage, current and temperature of the load switch 7. During the closing operation, the main controller 61 first sends a control pulse to the closing trigger 625, and the movable limit rod of the closing trigger 625 completes a contraction and reset movement. When contracting, the limit protrusion 6231 is not limited by the closing trigger 625, and the driving wheel 623 rotates half a circle by the elastic force of the energy storage spring 624 and is limited by the opening trigger 626. When the driving wheel 623 rotates, the reciprocating part 622 is moved in the other direction through the rack on the other side of the reciprocating part 622, and then the load switch 7 is controlled to be closed through the insulating connecting rod 629; then the main controller 61 drives the energy storage motor 628 to rotate, and the worm 6281 drives the driving worm wheel 627 to rotate to increase the elastic force of the energy storage spring 624. When the driving load of the driving energy storage motor 628 is greater than the set threshold, it means that the elastic force of the energy storage spring 624 is large enough to meet the driving force requirement of the driving wheel 623, and the main controller 61 controls the energy storage motor 628 to stop rotating.

[0055] In this specification, each embodiment is described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the embodiments can be referred to each other. For the device disclosed in the embodiment, since it corresponds to the method disclosed in the embodiment, the description is relatively simple, and the relevant parts can be referred to the method part.

[0056] The above description of the disclosed embodiments enables those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. Distribution automation remote control terminal FTU, characterized by: include: Waterproof cabinet (1), heat dissipation module (2), wireless communication module (3), power supply module (4), sealed box (5), control module (6), load switch (7); The heat dissipation module (2) is fixedly mounted outside the waterproof cabinet (1); the wireless communication module (3), the power module (4), and the sealed box (5) are fixedly mounted inside the waterproof cabinet (1); the control module (6) and the load switch (7) are fixedly mounted inside the sealed box (5); The control module (6) is connected to the wireless communication module (3) via a communication interface provided on the sealed box (5), thereby receiving control commands from the power distribution control center, controlling the corresponding load switch (7) to close / open, and sending line monitoring data to the power distribution control center; The power supply module (4) is electrically connected to the wireless communication module (3) and is electrically connected to the control module (6) via a power supply interface provided on the sealed box (5), thereby providing electric energy to the wireless communication module (3) and the control module (6); The sealed box (5) is connected to the heat dissipation module (2) through a pipeline, and by driving a fan (8), hot air in the sealed box (5) enters the heat dissipation module (2) for cooling and then returns to the sealed box (5) to assist in heat dissipation.

2. The distribution automation remote control terminal FTU according to claim 1, characterized in that: The waterproof cabinet (1) comprises: a cabinet body and a cabinet door; the cabinet body has a protruding rainproof outer edge on the top, a cable hole is provided on the bottom, and a heat dissipation pipe hole and an antenna hole are provided on the side; a sealing ring is provided between the cabinet door and the cabinet body, and is sealed and waterproof after being locked and closed.

3. The distribution automation remote control terminal FTU according to claim 1, characterized in that: The heat dissipation module (2) is composed of a heat dissipation pipe and heat dissipation fins arranged on the heat dissipation pipe; the sealed box (5) is provided with an air inlet and an air outlet adapted to the heat dissipation pipe.

4. The distribution automation remote control terminal FTU according to claim 1, characterized in that: The sealed box (5) is provided with a terminal corresponding to the terminal of the load switch (7), the terminal is electrically connected to the corresponding terminal, and the connection line and the sealed box (5) are insulated and sealed.

5. The distribution automation remote control terminal FTU according to claim 1, characterized in that: The power supply module (4) comprises: a charge and discharge control unit and a storage battery; the input end of the charge and discharge control unit is connected to the power supply line, the output end is connected to the wireless communication module (3) and the control module (6), and the charge / discharge end is connected to the storage battery.

6. The distribution automation remote control terminal FTU according to claim 1, characterized in that: The control module (6) includes: a main controller (61), a driving mechanism (62), and a sensor unit; The sensing unit includes a voltage sensor, a current sensor, and a temperature sensor; The main controller (61) is electrically connected to the sensing unit, the driving mechanism (62), and the driving fan (8); the operating voltage, current, and temperature of each load switch (7) are monitored by the sensing unit, the driving mechanism (62) is driven to operate according to a control command, and the driving fan (8) is controlled to rotate according to the temperature.

7. The distribution automation remote control terminal FTU according to claim 6, characterized in that: The driving mechanism (62) comprises: a fixed portion (621), a reciprocating portion (622), a driving wheel (623), an energy storage spring (624), a closing trigger (625), an opening trigger (626), a driving worm gear (627), and an energy storage motor (628); The fixed portion (621) is provided with a groove adapted to the reciprocating portion (622), and the reciprocating portion (622) is driven to move along the groove by the driving wheel (623); a fixed shaft (6211) is provided on the fixed portion (621), and the driving wheel (623), the energy storage spring (624), and the driving worm gear (627) are sequentially sleeved on the fixed shaft (6211), and are limited by a limiting ring (6212) and can rotate circumferentially along the fixed shaft (6211); The driving wheel (623) is provided with a limiting protrusion (6231) adapted to the closing trigger (625) and the opening trigger (626); the driving wheel (623) is provided with a bayonet so as to be engaged with one end of the energy storage spring (624); A worm (6281) is fixed on the output shaft of the energy storage motor (628), and the energy storage motor (628) drives the worm (6281) to rotate, thereby driving the driving worm wheel (627) to rotate; the driving worm wheel (627) is provided with a bayonet so as to engage with the other end of the energy storage spring (624), and the rotation of the driving worm wheel (627) causes the energy storage spring (624) to store energy, thereby providing the driving wheel disc (623) with the instantaneous driving force required for the switch to close / open.

8. The distribution automation remote control terminal FTU according to claim 7, characterized in that: The reciprocating portion (622) is connected to the load switch (7) via an insulating connecting rod (629), thereby controlling the closing / opening of the load switch (7).

9. The distribution automation remote control terminal FTU according to claim 7, characterized in that: The reciprocating motion part (622) is a rectangular frame, and racks (6221) are provided on the inner sides of both sides of the rectangular frame that are in sliding contact with the groove; driving teeth (6232) adapted to the racks (6221) are provided on the outer peripheral side of a sector-shaped area of ​​the driving wheel (623) to drive the rectangular frame to reciprocate.

10. The distribution automation remote control terminal FTU according to claim 9, characterized in that: The central angle of the sector-shaped area is less than 180 degrees, and the limiting protrusion (6231) is located on the straight edge of the sector-shaped area.

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