Power quality dynamic compensation device suitable for power distribution network

Abstract

The utility model discloses an electric energy quality dynamic compensation device suitable for a power distribution network, which relates to the technical field of electric power regulation and control and comprises a cabinet body and a dehumidification mechanism arranged in the cabinet body and comprising a cylinder arranged in the cabinet body. The dehumidification mechanism is used for preventing external water molecules from entering the cabinet body in the heat dissipation process of the device to cause short circuit; the pressure relief mechanism is arranged in the cabinet body, and the pressure relief mechanism comprises a rectangular box arranged in the cabinet body; when the extrusion roller is in contact with the water filtering sponge, the water filtering sponge is rotated and extruded, water in the water filtering sponge is extruded out, the water drops along the cylinder and is discharged out of the device through the ventilation circular plate and the filter plate, and the rapid drainage design prevents the sponge from breeding mould, protects electronic elements in the cabinet from being corroded by moisture, and improves the service life of the cabinet. The problem that the water filtering sponge is saturated and cannot effectively filter water due to water remaining in the water filtering sponge is avoided.

Description

A dynamic power quality compensation device suitable for power distribution networks Technical Field

[0001] This utility model relates to the field of power control technology, and in particular to a dynamic power quality compensation device suitable for power distribution networks. Background Technology

[0002] Dynamic power quality compensation devices are intelligent power electronic devices used in distribution networks to improve power quality in real time. Through high-speed detection and dynamic compensation technology, they effectively solve power quality problems such as voltage fluctuations, harmonic pollution, and three-phase imbalance.

[0003] The device is mostly cabinet-type, and dehumidification is a key requirement during its use. If the weather is humid, moisture will enter the device during the heat dissipation process, which can damage the electronic components inside. Summary of the Invention

[0004] The purpose of this invention is to provide a dynamic power quality compensation device suitable for power distribution networks, so as to solve at least one of the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a dynamic power quality compensation device suitable for power distribution networks, comprising a cabinet, and further comprising:

[0006] A dehumidification mechanism is installed inside the cabinet. The dehumidification mechanism includes a cylinder installed inside the cabinet. The dehumidification mechanism is used to prevent external water molecules from entering the cabinet during the heat dissipation process of the device, which could lead to a short circuit.

[0007] A pressure relief mechanism is installed inside the cabinet. The pressure relief mechanism includes a rectangular box installed inside the cabinet. The pressure relief mechanism is used to release air pressure inside the cabinet while dissipating heat, and at the same time, ensure the airtightness of the cabinet to prevent dust from entering when heat dissipation stops.

[0008] Preferably, the dehumidification mechanism includes a cylinder fixedly installed inside the cabinet, a filter plate fixedly installed at the bottom end of the cylinder, and a fan fixedly installed at the top end of the cylinder, the fan being fixedly connected to the cabinet.

[0009] Preferably, an installation plate is fixedly installed inside the cabinet, a drive motor is fixedly installed at the bottom of the installation plate, a rotating shaft is fixedly installed on the output shaft of the drive motor, the rotating shaft passes through the fan and is connected to the fan, and the bottom end of the rotating shaft extends into the cylinder.

[0010] Preferably, a ventilation plate and a water-filtering sponge are fixedly installed inside the cylinder, the ventilation plate is in contact with the water-filtering sponge, and the rotating shaft passes through the ventilation plate and the water-filtering sponge and is rotatably connected to the ventilation plate and the water-filtering sponge.

[0011] Preferably, a ventilation disc is fixedly installed inside the cylinder, the bottom end of the rotating shaft is rotatably connected to the ventilation disc, a rectangular groove is provided on the rotating shaft, an I-shaped threaded arc plate is slidably fitted on the rectangular groove, and the I-shaped threaded arc plate is reciprocally threaded to the inner wall of the cylinder.

[0012] Preferably, two C-shaped mounting brackets are fixedly installed on the top of the I-shaped threaded arc plate, and extrusion rollers are rotatably installed in the two C-shaped mounting brackets respectively.

[0013] Preferably, the pressure relief mechanism includes a rectangular box fixedly installed on the top of the cabinet, the rectangular box being in contact with the outside, a T-shaped hollow plate being slidably installed inside the rectangular box, and several ventilation holes being provided at the bottom of the rectangular box.

[0014] Preferably, a limiting spring is fixedly installed on the bottom inner wall of the rectangular box, and the top of the limiting spring is fixedly connected to the T-shaped hollow plate. Several ventilation slots are respectively opened on the left and right sides of the T-shaped hollow plate.

[0015] The beneficial effects of this utility model are as follows:

[0016] In this utility model:

[0017] 1. During heat dissipation, the drive motor is activated, causing the shaft to rotate. The shaft then drives the fan, which generates suction force that draws air from the outside into the cylinder through the cylinder and filter plate. The outside air contains moisture, which is trapped inside the filter sponge as it passes through it. As the shaft rotates, the rectangular groove drives the I-beam threaded arc plate to rotate. The I-beam threaded arc plate moves up and down under the action of the thread inside the cylinder. The rising of the I-beam threaded arc plate causes the C-shaped mounting bracket to rise, which in turn drives the squeezing roller to rotate and rise. When the squeezing roller contacts the filter sponge, it rotates and squeezes the sponge, squeezing out the water. The water then flows down the cylinder and is discharged outside the device through the ventilation plate and filter plate. This rapid drainage design prevents mold growth on the sponge, protects the electronic components inside the cabinet from moisture corrosion, and prevents the filter sponge from becoming saturated and unable to effectively filter water.

[0018] 2. After being filtered by the water sponge, the air enters the cabinet through the ventilation plate and fan. As the air inside the cabinet increases, the air pressure inside the cabinet will increase, and the air will enter the rectangular box through the ventilation holes. The air will push the T-shaped hollow plate upward. At this time, the limit spring will be stretched and deformed. When the exhaust duct on the T-shaped hollow plate leaves the rectangular box, the air inside the rectangular box will be discharged from the device through the exhaust duct, thereby achieving the heat dissipation function. When the heat dissipation stops, the corresponding limit spring will drive the T-shaped hollow plate into the rectangular box under the action of elasticity, thereby achieving the sealing of the rectangular box and preventing dust from entering the cabinet and affecting the operation of the electronic components inside the cabinet. Attached Figure Description

[0019] Figure 1 is a schematic diagram of the overall structure of this utility model;

[0020] Figure 2 is a side sectional view of the present invention;

[0021] Figure 3 is a partial cross-sectional structural schematic diagram of this utility model;

[0022] Figure 4 is an enlarged structural schematic diagram of A in Figure 3 of this utility model;

[0023] Figure 5 is an enlarged structural schematic diagram of B in Figure 2 of this utility model.

[0024] In the diagram: 1. Cabinet; 101. Cylinder; 102. Filter plate; 103. Fan; 104. Mounting plate; 105. Drive motor; 106. Shaft; 107. Ventilation plate; 108. Filter sponge; 109. Ventilation circular plate; 110. Rectangular groove; 111. I-shaped threaded arc plate; 112. C-shaped mounting bracket; 113. Extrusion roller; 2. Rectangular box; 201. T-shaped hollow plate; 202. Ventilation hole; 203. Limiting spring; 204. Exhaust duct; 205. Compensation device; 206. Closed door. Detailed Implementation

[0025] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0026] This utility model provides a dynamic power quality compensation device suitable for power distribution networks, as shown in Figures 1-5. It includes a cabinet 1 and further comprises: a dehumidification mechanism, which is disposed within the cabinet 1 and includes a cylinder 101 disposed within the cabinet 1. The dehumidification mechanism prevents external water molecules from entering the cabinet 1 during heat dissipation, thus preventing short circuits; and a pressure relief mechanism, which is disposed within the cabinet 1 and includes a rectangular box 2 disposed within the cabinet 1. The pressure relief mechanism releases air pressure within the cabinet 1 while simultaneously dissipating heat, and ensures the airtightness of the cabinet 1 to prevent dust from entering when heat dissipation stops. The dehumidification mechanism includes a cylinder 101 fixedly installed within the cabinet 1. A filter plate 102 is fixedly installed at the bottom of the cylinder 101, and a fan 103 is fixedly installed at the top of the cylinder 101. The fan 103 is fixedly connected to the cabinet 1. A mounting plate 104 is fixedly installed inside the cabinet 1. A drive motor 105 is fixedly installed at the bottom of the mounting plate 104. A rotating shaft 106 is fixedly installed on the output shaft of the drive motor 105. The rotating shaft 106 passes through and connects to the fan 103. The bottom end of the rotating shaft 106 extends into the cylinder 101. A ventilation plate 107 and a water-filtering sponge 108 are fixedly installed inside the cylinder 101. The ventilation plate 107 contacts the water-filtering sponge 108. The rotating shaft 106 passes through the ventilation plate 107 and the water-filtering sponge 108 and is rotatably connected to them. A ventilation circular plate 109 is fixedly installed inside the cylinder 101. The bottom end of the rotating shaft 106 is rotatably connected to the ventilation circular plate 109. A rectangular groove 110 is opened on the rotating shaft 106. An I-shaped threaded arc plate 111 is slidably fitted on the rectangular groove 110. The I-shaped threaded arc plate 111 is reciprocally threaded to the inner wall of the cylinder 101. Two C-shaped mounting brackets 112 are fixedly installed on the top of the I-shaped threaded arc plate 111, and extrusion rollers 113 are rotatably installed in the two C-shaped mounting brackets 112 respectively;

[0027] When cooling is needed, the drive motor 105 is activated, which drives the rotating shaft 106 to rotate. The rotating shaft 106 drives the fan 103 to rotate, and the fan 103 generates suction force, drawing air from the outside into the cylinder 101 through the cylinder 101 and filter plate 102. The outside air contains moisture, which is trapped inside the water-filtering sponge 108 as it passes through the water-filtering sponge 108. When the rotating shaft 106 rotates, it drives the I-beam threaded arc plate 111 to rotate under the action of the rectangular groove 110. The I-beam threaded arc plate 111 moves up and down reciprocally under the action of the thread inside the cylinder 101. The rise of the textured plate 111 will drive the rise of the C-shaped mounting bracket 112, which in turn will drive the squeezing roller 113 to rotate and rise. When the squeezing roller 113 contacts the water-filtering sponge 108, it will rotate and squeeze the water-filtering sponge 108, squeezing out the water inside the water-filtering sponge 108. The water will fall down along the cylinder 101 and be discharged outside the device through the ventilation plate 109 and the filter plate 102. The rapid drainage design prevents mold growth on the sponge, protects the electronic components inside the cabinet from moisture corrosion, and prevents water from remaining inside the water-filtering sponge 108, which would cause the water-filtering sponge 108 to become saturated and unable to effectively filter water.

[0028] The pressure relief mechanism includes a rectangular box 2 fixedly mounted on the top of the cabinet 1. The rectangular box 2 is in contact with the outside. A T-shaped hollow plate 201 is slidably installed inside the rectangular box 2. Several ventilation holes 202 are opened at the bottom of the rectangular box 2. A limit spring 203 is fixedly installed on the inner wall of the bottom of the rectangular box 2. The top of the limit spring 203 is fixedly connected to the T-shaped hollow plate 201. Several exhaust slots 204 are opened on the left and right sides of the T-shaped hollow plate 201 respectively.

[0029] After being filtered by the water-filtering sponge 108, the air enters the cabinet 1 through the ventilation plate 107 and the fan 103. As the air inside the cabinet 1 increases, the air pressure inside the cabinet 1 will increase, and the air will enter the rectangular box 2 through the ventilation hole 202. The air will push the T-shaped hollow plate 201 upward. At this time, the limiting spring 203 will be stretched and deformed. When the exhaust groove 204 on the T-shaped hollow plate 201 leaves the rectangular box 2, the air inside the rectangular box 2 will be discharged from the device through the exhaust groove 204, thereby achieving the heat dissipation function. When the heat dissipation stops, the corresponding limiting spring 203 will drive the T-shaped hollow plate 201 into the rectangular box 2 under the action of elasticity, thereby achieving the sealing of the rectangular box 2 and preventing dust from entering the cabinet 1 and affecting the operation of the electronic components inside the cabinet 1.

[0030] The working principle of the dynamic power quality compensation device for power distribution networks provided by this utility model is as follows:

[0031] When cooling is needed, the drive motor 105 is activated, which drives the rotating shaft 106 to rotate. The rotating shaft 106 drives the fan 103 to rotate, and the fan 103 generates suction force, drawing air from the outside into the cylinder 101 through the cylinder 101 and filter plate 102. The outside air contains moisture, which is trapped inside the water-filtering sponge 108 as it passes through the water-filtering sponge 108. When the rotating shaft 106 rotates, it drives the I-beam threaded arc plate 111 to rotate under the action of the rectangular groove 110. The I-beam threaded arc plate 111 moves up and down reciprocally under the action of the thread inside the cylinder 101. The rise of the textured plate 111 will drive the rise of the C-shaped mounting bracket 112, which in turn will drive the squeezing roller 113 to rotate and rise. When the squeezing roller 113 contacts the water-filtering sponge 108, it will rotate and squeeze the water-filtering sponge 108, squeezing out the water inside the water-filtering sponge 108. The water will fall down along the cylinder 101 and be discharged out of the device through the ventilation plate 109 and the filter plate 102. The rapid drainage design prevents the sponge from growing mold, protects the electronic components inside the cabinet from moisture corrosion, and prevents water from remaining inside the water-filtering sponge 108, which would cause the water-filtering sponge 108 to become saturated and unable to effectively filter water.

[0032] After being filtered by the water-filtering sponge 108, the air enters the cabinet 1 through the ventilation plate 107 and the fan 103. As the air inside the cabinet 1 increases, the air pressure inside the cabinet 1 will increase, and the air will enter the rectangular box 2 through the ventilation hole 202. The air will push the T-shaped hollow plate 201 upward. At this time, the limiting spring 203 will be stretched and deformed. When the exhaust groove 204 on the T-shaped hollow plate 201 leaves the rectangular box 2, the air inside the rectangular box 2 will be discharged from the device through the exhaust groove 204, thereby achieving the heat dissipation function. When the heat dissipation stops, the corresponding limiting spring 203 will drive the T-shaped hollow plate 201 into the rectangular box 2 under the action of elasticity, thereby achieving the sealing of the rectangular box 2 and preventing dust from entering the cabinet 1 and affecting the operation of the electronic components inside the cabinet 1.

[0033] Finally, it should be noted that the above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A dynamic power quality compensation device suitable for power distribution networks, comprising a cabinet (1), characterized in that, Also includes: The dehumidification mechanism is installed inside the cabinet (1). The dehumidification mechanism includes a cylinder (101) installed inside the cabinet (1). The dehumidification mechanism is used to prevent external water molecules from entering the cabinet (1) during the heat dissipation process of the device, which could lead to a short circuit. The pressure relief mechanism is installed inside the cabinet (1). The pressure relief mechanism includes a rectangular box (2) installed inside the cabinet (1). The pressure relief mechanism is used to release the air pressure inside the cabinet (1) while achieving heat dissipation. When heat dissipation stops, it also ensures the airtightness of the cabinet (1) to prevent dust from entering.

2. The power quality dynamic compensation device for power distribution networks according to claim 1, characterized in that: The dehumidification mechanism includes a cylinder (101) fixedly installed inside the cabinet (1), a filter plate (102) fixedly installed at the bottom end of the cylinder (101), and a fan (103) fixedly installed at the top end of the cylinder (101), and the fan (103) is fixedly connected to the cabinet (1).

3. A dynamic power quality compensation device suitable for power distribution networks according to claim 2, characterized in that: An installation plate (104) is fixedly installed inside the cabinet (1). A drive motor (105) is fixedly installed at the bottom of the installation plate (104). A rotating shaft (106) is fixedly installed on the output shaft of the drive motor (105). The rotating shaft (106) passes through the fan (103) and is connected to the fan (103). The bottom end of the rotating shaft (106) extends into the cylinder (101).

4. A dynamic power quality compensation device suitable for power distribution networks according to claim 3, characterized in that: A ventilation plate (107) and a water-filtering sponge (108) are fixedly installed inside the cylinder (101). The ventilation plate (107) is in contact with the water-filtering sponge (108). The rotating shaft (106) passes through the ventilation plate (107) and the water-filtering sponge (108) and is rotatably connected to the ventilation plate (107) and the water-filtering sponge (108).

5. A dynamic power quality compensation device suitable for power distribution networks according to claim 3, characterized in that: A ventilation disc (109) is fixedly installed inside the cylinder (101). The bottom end of the rotating shaft (106) is rotatably connected to the ventilation disc (109). A rectangular groove (110) is provided on the rotating shaft (106). An I-shaped threaded arc plate (111) is slidably sleeved on the rectangular groove (110). The I-shaped threaded arc plate (111) is reciprocally threaded to the inner wall of the cylinder (101).

6. A dynamic power quality compensation device suitable for power distribution networks according to claim 5, characterized in that: Two C-shaped mounting brackets (112) are fixedly installed on the top of the I-shaped threaded arc plate (111), and extrusion rollers (113) are rotatably installed in the two C-shaped mounting brackets (112).

7. A dynamic power quality compensation device suitable for power distribution networks according to claim 1, characterized in that: The pressure relief mechanism includes a rectangular box (2) fixedly installed on the top of the cabinet (1). The rectangular box (2) is in contact with the outside world. A T-shaped hollow plate (201) is slidably installed inside the rectangular box (2). Several ventilation holes (202) are opened at the bottom of the rectangular box (2).

8. A dynamic power quality compensation device suitable for power distribution networks according to claim 7, characterized in that: A limiting spring (203) is fixedly installed on the bottom inner wall of the rectangular box (2). The top of the limiting spring (203) is fixedly connected to the T-shaped hollow plate (201). Several exhaust slots (204) are opened on the left and right sides of the T-shaped hollow plate (201).

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