Low-voltage harmonic suppression reactive power compensation device

Abstract

The utility model relates to the field of compensation devices, in particular to a low-voltage harmonic suppression reactive power compensation device, which comprises a shell, a display screen, a heat dissipation ventilation plate, a heat dissipation box body, a converter, a filter frame, a fan, a capacitor, a reactive power compensation module and pull rods, the upper side of the shell is provided with two groups of pull rods, and the left end of the upper side of the shell is provided with the display screen; through the design of a multi-directional heat dissipation structure, the ventilation and heat dissipation performance can be improved, the phenomenon that the capacitor is possibly damaged due to short circuit is reduced, and the risk brought to safety maintenance is reduced; a filtering frame is installed in the right side of the shell, a heat dissipation box is installed on the right side of the shell, a fan is installed in the heat dissipation box, and heat flow in the device is guided out through the fan.

Description

Technical Field

[0001] This utility model relates to the field of compensation devices, specifically to a low-voltage harmonic suppression reactive power compensation device. Background Technology

[0002] Reactive power compensation devices are technical equipment used to improve the power factor of the power grid, reduce losses in power supply transformers and transmission lines, improve power supply efficiency, and improve the power supply environment. They occupy an indispensable and important position in power supply systems. By rationally selecting and using reactive power compensation devices, grid losses can be minimized and grid quality improved. Conversely, improper selection or use may lead to problems such as voltage fluctuations and increased harmonics in the power supply system. Chinese patent discloses a novel low-voltage harmonic suppression reactive power compensation device (authorization announcement number CN 220896237). This patented technology, through the inclusion of a current detection transmitter, voltage detection transmitter, capacitance sensor, reactance sensor, filter sensor, signal converter, and display control panel, allows for the detection of current and voltage at the input interface via the current and voltage detection transmitters, transmitting the data to the display control panel. The capacitance, reactance, and filter sensors transmit real-time detected data to the display control panel, enabling adjustments based on the real-time monitoring data for more accurate reactive power compensation and harmonic suppression. By incorporating a composite protection device and signal transmitter, overcurrent and overtemperature are detected during operation. When the temperature exceeds a predetermined threshold, the composite protection device will cut off the power supply to prevent dangerous accidents such as fires. The composite protection device is also equipped with a fault diagnosis function to determine the type and location of the fault. When a fault occurs, the composite protection device will identify the fault, and the signal transmitter will transmit the fault type and location to the signal converter, which will then display it on the control screen to assist maintenance personnel in troubleshooting and repair. However, this novel low-voltage harmonic suppression reactive power compensation device is too large and immobile, making intelligent and portable deployment impossible. Furthermore, its ventilation and heat dissipation are poor; prolonged use without timely heat dissipation can easily lead to an increase in internal temperature, potentially causing an explosion, posing a certain safety hazard. Therefore, those skilled in the art have provided a low-voltage harmonic suppression reactive power compensation device to solve the problems mentioned in the background art. Utility Model Content

[0003] To solve the above-mentioned technical problems, this utility model provides a low-voltage harmonic suppression reactive power compensation device, including a shell, a display screen, a heat dissipation and ventilation plate, a heat dissipation box, a converter, a filter frame, a fan, a capacitor, a reactive power compensation module, and pull rods. Two sets of pull rods are installed on the upper side of the shell, the display screen is installed at the upper left end of the shell, the converter is installed below the display screen, the capacitor is installed below the converter, the reactive power compensation module is installed to the right of the capacitor, the heat dissipation and ventilation plate is installed on the front and rear sides of the shell, the filter frame is installed inside the right side of the shell, the heat dissipation box is installed on the right side of the shell, and the fan is installed inside the heat dissipation box.

[0004] Preferably: the outer shell has an assembly groove on the left side, a support plate is installed on the inner wall of the assembly groove, a converter is installed on the support plate, a fixing plate is installed on the upper side of the converter, a display screen is installed in the middle of the fixing plate, a protruding plate is installed on the inner walls of the front and rear sides of the outer shell, a first screw hole is provided on the protruding plate, a heat dissipation and ventilation plate is installed on the outer side of the protruding plate, a plurality of ventilation holes of the same size are provided in the middle of the heat dissipation and ventilation plate, a second screw hole is provided on the edge of the heat dissipation and ventilation plate, and a nut is installed in the first screw hole and the second screw hole.

[0005] Preferably, a filter groove is provided at the middle position on the right side of the outer casing, a slot is provided on the inner wall of the filter groove, a filter frame is installed in the slot, a filter screen is installed in the middle of the filter frame, and a handle is installed on the upper side of the filter frame.

[0006] Preferably: the right side wall of the outer shell is provided with a second first screw hole, a side plate is installed on the right side wall of the outer shell, the side plate is installed on the left side of the heat sink, the side plate is provided with a second second screw hole, a second nut is installed in the second first screw hole and the second second screw hole, and the right side wall of the heat sink is provided with multiple heat dissipation holes of the same size;

[0007] Preferably, the bottom inner side of the outer casing is provided with a No. 3 first screw hole, a triangular fixing bracket is installed on the upper side of the bottom, the triangular fixing bracket is provided with a No. 3 second screw hole, and a No. 3 nut is installed in the No. 3 first screw hole and the No. 3 second screw hole.

[0008] The technical effects and advantages of this utility model are as follows:

[0009] 1. A heat dissipation box is installed on the right side of the outer casing, and a fan is installed inside the heat dissipation box. The fan dissipates the heat inside the device. At the same time, heat dissipation and ventilation plates are installed on the front and rear sides of the outer casing. By designing a multi-directional heat dissipation structure, the ventilation and heat dissipation performance can be improved, reducing the possibility of capacitor damage due to short circuits and reducing the risk to maintenance safety.

[0010] 2. Through its compact design and double-lever structure, it enables intelligent and portable deployment, improving work flexibility and convenience. Attached Figure Description

[0011] Figure 1This is a schematic diagram of the structure of a low-voltage harmonic suppression reactive power compensation device provided in an embodiment of this application;

[0012] Figure 2 This is a schematic diagram of the exploded structure of a low-voltage harmonic suppression reactive power compensation device provided in this application embodiment. Figure 1 ;

[0013] Figure 3 This is a schematic diagram of the exploded structure of a low-voltage harmonic suppression reactive power compensation device provided in this application embodiment. Figure 2 ;

[0014] Figure 4 This is a schematic diagram of the exploded structure of a low-voltage harmonic suppression reactive power compensation device provided in this application embodiment. Figure 3 ;

[0015] Figure 5 This is a schematic diagram of a partial explosion structure in a low-voltage harmonic suppression reactive power compensation device provided in an embodiment of this application.

[0016] In the diagram: 1. Outer shell; 2. Display screen; 3. Heat dissipation and ventilation plate; 4. Heat dissipation box; 5. Converter; 6. Nut 1; 7. Nut 2; 8. Filter frame; 9. Triangular bracket; 10. Fan; 11. Capacitor; 12. Reactive power compensation module; 13. Nut 3; 101. Assembly slot; 102. Support plate; 103. Protruding plate; 104. First screw hole; 105. First screw hole; 106. Filter groove; 107. Slot; 108. Pull rod; 109. First screw hole; 201. Fixing plate; 301. Ventilation hole; 302. Second screw hole; 401. Heat dissipation hole; 402. Side plate; 403. Second screw hole; 801. Filter screen; 802. Handle; 901. Second screw hole. Detailed Implementation

[0017] The present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments. The embodiments of the present invention are provided for purposes of illustration and description and are not intended to be exhaustive or to limit the present invention to the disclosed forms. Many modifications and variations will be apparent to those skilled in the art. The embodiments are selected and described to better illustrate the principles and practical applications of the present invention and to enable those skilled in the art to understand the present invention and design various embodiments with various modifications suitable for specific applications.

[0018] Example

[0019] Please see Figures 1 to 5This embodiment provides a low-voltage harmonic suppression reactive power compensation device, including a housing 1, a display screen 2, a heat dissipation and ventilation plate 3, a heat dissipation box 4, a converter 5, a filter frame 8, a fan 10, a capacitor 11, a reactive power compensation module 12, and a pull rod 108. Two sets of pull rods 108 are installed on the upper side of the housing 1. The display screen 2 is installed at the upper left end of the housing 1. The converter 5 is installed below the display screen 2. The capacitor 11 is installed below the converter 5. The reactive power compensation module 12 is installed to the right of the capacitor 11. The heat dissipation and ventilation plate 3 is installed on the front and rear sides of the housing 1. The filter frame 8 is installed inside the right side of the housing 1. The heat dissipation box 4 is installed on the right side of the housing 1. The fan 10 is installed inside the heat dissipation box 4.

[0020] Specifically, the left side of the outer casing 1 has an assembly groove 101, the inner wall of which is fitted with a support plate 102. A converter 5 is mounted on the support plate 102, and a fixing plate 201 is mounted on the upper side of the converter 5. A display screen 2 is mounted in the middle of the fixing plate 201. The inner walls of the front and rear sides of the outer casing 1 are fitted with protruding plates 103, each with a first screw hole 104. A heat dissipation and ventilation plate 3 is mounted on the outer side of the protruding plate 103, with multiple ventilation holes 301 of the same size in the middle. A second screw hole 302 is located at the edge of the heat dissipation and ventilation plate 3, and a nut 6 is installed in both the first screw hole 104 and the second screw hole 302. The right side wall of the outer casing 1 has a second screw hole 105, and a side plate 402 is mounted on the right side wall of the outer casing 1. 02 is installed on the left side of the heat sink 4. The side plate 402 has a second screw hole 403. The second screw hole 105 and the second screw hole 403 are fitted with a nut 7. The right side wall of the heat sink 4 has multiple heat dissipation holes 401 of the same size. The middle right side of the outer shell 1 has a filter groove 106. The inner wall of the filter groove 106 has a slot 107. The slot 107 is fitted with a filter frame 8. The filter screen 801 is installed in the middle of the filter frame 8. The upper side of the filter frame 8 is fitted with a handle 802. The bottom inner side of the outer shell 1 has a first screw hole 109. The upper bottom of the bottom is fitted with a triangular fixing bracket 9. The triangular fixing bracket 9 has a second screw hole 901. The first screw hole 109 and the second screw hole 901 are fitted with a nut 13.

[0021] The working principle of this utility model is as follows:

[0022] In a low-voltage harmonic suppression reactive power compensation device, a heat dissipation box 4 is installed on the right side of the outer casing 1, and a fan 10 is installed inside the heat dissipation box 4. The fan 10 dissipates the heat flow inside the device. At the same time, heat dissipation ventilation plates 3 are installed on the front and rear sides of the outer casing 1. The ventilation holes 301 on the heat dissipation ventilation plates 3 and the heat dissipation holes 401 on the heat dissipation box 4 form a directional airflow, which accelerates the dissipation of heat flow inside the device, improves ventilation and heat dissipation, reduces the possibility of capacitor damage due to short circuits, and reduces the risk to maintenance safety. Through the small size design and the structure of the double-group pull rods 108, intelligent and portable deployment can be achieved, improving work flexibility and convenience.

[0023] Obviously, the described embodiments are only a part of the embodiments of this utility model, and not all of them. All other embodiments obtained by those skilled in the art and related fields based on the embodiments of this utility model without creative effort should fall within the protection scope of this utility model. Structures, devices, and operating methods not specifically described and explained in this utility model, unless otherwise specified or limited, shall be implemented according to conventional means in the art.

Claims

1. A low-voltage harmonic suppression reactive power compensation device, characterized in that, The device includes a housing (1), a display screen (2), a heat dissipation ventilation plate (3), a heat dissipation box (4), a converter (5), a filter frame (8), a fan (10), a capacitor (11), a reactive power compensation module (12), and a pull rod (108). Two sets of pull rods (108) are installed on the upper side of the housing (1). The display screen (2) is installed on the upper left side of the housing (1). The converter (5) is installed on the lower side of the display screen (2). The capacitor (11) is installed on the lower side of the converter (5). The reactive power compensation module (12) is installed on the right side of the capacitor (11). The heat dissipation ventilation plate (3) is installed on the front and rear sides of the housing (1). The filter frame (8) is installed inside the right side of the housing (1). The heat dissipation box (4) is installed on the right side of the housing (1). The fan (10) is installed inside the heat dissipation box (4).

2. The low-voltage harmonic suppression reactive power compensation device according to claim 1, characterized in that, The outer casing (1) has an assembly groove (101) on the left side. A support plate (102) is installed on the inner wall of the assembly groove (101). A converter (5) is installed on the support plate (102). A fixing plate (201) is installed on the upper side of the converter (5). A display screen (2) is installed in the middle of the fixing plate (201).

3. The low-voltage harmonic suppression reactive power compensation device according to claim 2, characterized in that, The inner walls of the front and rear sides of the outer shell (1) are fitted with protruding plates (103). The protruding plates (103) are provided with a first screw hole (104). A heat dissipation and ventilation plate (3) is installed on the outer side of the protruding plates (103). The heat dissipation and ventilation plate (3) is provided with multiple ventilation holes (301) of the same size in the middle. A second screw hole (302) is provided at the edge of the heat dissipation and ventilation plate (3). A nut (6) is installed in the first screw hole (104) and the second screw hole (302).

4. The low-voltage harmonic suppression reactive power compensation device according to claim 3, characterized in that, The outer casing (1) has a second first screw hole (105) on the right side wall. A side plate (402) is installed on the right side wall of the outer casing (1). The side plate (402) is installed on the left side of the heat sink (4). A second screw hole (403) is provided on the side plate (402). A second nut (7) is installed in the second first screw hole (105) and the second second screw hole (403).

5. A low-voltage harmonic suppression reactive power compensation device according to claim 4, characterized in that, The heat dissipation box (4) has multiple heat dissipation holes (401) of the same size on the right side wall.

6. A low-voltage harmonic suppression reactive power compensation device according to claim 4, characterized in that, The outer casing (1) has a filter groove (106) in the middle of the right side. The inner wall of the filter groove (106) has a slot (107). A filter frame (8) is installed in the slot (107). A filter screen (801) is installed in the middle of the filter frame (8). A handle (802) is installed on the upper side of the filter frame (8).

7. A low-voltage harmonic suppression reactive power compensation device according to claim 6, characterized in that, The inner bottom of the outer casing (1) is provided with a first screw hole (109) of the third type, and a triangular fixing bracket (9) is installed on the upper side of the bottom. The triangular fixing bracket (9) is provided with a second screw hole (901) of the third type, and a nut (13) of the third type is installed in the first screw hole (109) and the second screw hole (901).

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