Low-voltage reactive power compensation energy-saving device

Abstract

The utility model relates to the technical field of compensation cabinets, and discloses a low-voltage reactive power compensation energy-saving device, which is characterized in that one side of the surface of an outer shell is movably connected with a sealing door, the surface of one side, far away from the outer shell, of the sealing door is provided with a door handle, ventilation and heat dissipation pipelines are arranged in the two sides of the outer shell, and the top of the outer shell is fixedly connected with a photovoltaic panel; air inlet grilles are arranged on the two sides of the surface of the outer shell and close to the ventilation and heat dissipation pipelines, a heat dissipation controller is arranged at the bottom in the outer shell, an inner shell is fixedly connected to the position, close to the top, in the outer shell, a power pack is fixedly connected to the surface of the side, away from the sealing door, of the outer shell, and connecting lines are arranged on the two sides of the surface of the power pack; the end, away from the power pack, of the connecting line is fixedly connected to one side of the surface of the ventilation and heat dissipation pipeline, an exhaust fan is arranged on the surface, close to the top, of the side, fixedly connected with the power pack, of the outer shell, and hot air in the inner shell can be exhausted easily through the exhaust fan.

Description

Technical Field

[0001] The utility model relates to the technical field of compensation cabinets, and more specifically to a low-voltage reactive power compensation energy-saving device. Background Art

[0002] The power output of the power grid includes two parts: one is active power: directly consuming electrical energy, converting electrical energy into mechanical energy, heat energy, chemical energy or sound energy, and using these energies to do work. This part of power is called active power; the other is reactive power: consuming electrical energy, but only converting electrical energy into another form of energy. This energy is a necessary condition for electrical equipment to do work, and this energy is periodically converted with electrical energy in the power grid. This part of power is called reactive power. Reactive power compensation, the full name of which is reactive power compensation, is a technology that plays a role in improving the power factor of the power grid in the power supply system, reducing the loss of power supply transformers and transmission lines, improving power supply efficiency, and improving the power supply environment.

[0003] The low-voltage reactive power compensation and energy-saving device has one or more low-voltage switchgear, low-voltage low-container and related control, measurement, signal, protection, regulation and other equipment. The manufacturer completes all internal electrical and mechanical connections and the device is a combination of structural components that are completely assembled together.

[0004] The existing low-voltage reactive power compensation energy-saving device usually adopts parallel power capacitors, but the capacitors often generate heat during use, and severe heating can easily cause the capacitors to burn out, thus causing additional economic losses. Utility Model Content

[0005] In order to overcome the above-mentioned defects of the prior art, the utility model provides a low-voltage reactive power compensation energy-saving device to solve the problems existing in the above-mentioned background technology.

[0006] The utility model provides the following technical solutions: a low-voltage reactive power compensation energy-saving device, wherein a closed door is movably connected to one side of the surface of the outer shell, a door handle is provided on the surface of the closed door away from the outer shell, ventilation and heat dissipation ducts are provided at the inner positions on both sides of the outer shell, a photovoltaic panel is fixedly connected to the top position of the outer shell, air intake grilles are provided at the positions of the ventilation and heat dissipation ducts on both sides of the surface of the outer shell near the opened two sides, a heat dissipation controller is provided at the bottom position of the outer shell, an inner shell is fixedly connected to the outer shell near the top position, a power supply group is fixedly connected to the surface of the outer shell away from the closed door, connecting lines are provided on both sides of the surface of the power supply group, and one end of the connecting line away from the power supply group is fixedly connected to one side of the surface of the ventilation and heat dissipation duct, an exhaust fan is provided on the surface of the outer shell located on the side fixedly connected to the power supply group near the top position, and the exhaust fan is conducive to exhausting the hot air inside the inner shell;

[0007] Furthermore, a rectangular inner cavity is provided inside the outer shell, rectangular through holes are provided at positions where ventilation and heat dissipation ducts are provided on the outer shell, and circular through holes are provided at positions where exhaust fans are provided on the outer shell, and the rectangular through holes facilitate the installation of ventilation and heat dissipation ducts.

[0008] Furthermore, a pipe inner cavity is opened inside the ventilation and heat dissipation duct, an air inlet slot is opened at the top of the ventilation and heat dissipation duct located at the bottom of the inner shell, and a cold air deflector is opened at the middle position of the pipe inner cavity of the ventilation and heat dissipation duct, which is conducive to sending external cold air into the inner shell for cooling through the air inlet slot.

[0009] Furthermore, dustproof nets are provided inside the ventilation and heat dissipation duct near both ends, neatly arranged air intake fans are provided inside the ventilation and heat dissipation duct near the dustproof nets, drying boxes are movably connected inside the ventilation and heat dissipation duct near the air intake fans away from the dustproof nets, a drying core is movably connected inside the drying box, a round handle is fixedly connected to a surface of the drying core on one side away from the ventilation and heat dissipation duct, and the drying core can help absorb moisture in the air and prevent gas containing water vapor from entering.

[0010] Furthermore, an inner cavity is provided inside the inner shell, isolation columns are provided on the four sides of the surface of the inner shell near the corners, an air outlet grille is provided on the top of the inner shell, heat sinks are fixedly connected on both sides of the surface of the inner shell, and a temperature sensor is fixedly connected to one side of the inner wall of the inner cavity. The temperature sensor is conducive to real-time monitoring of temperature changes inside the inner shell and starting the air intake fan according to the set temperature.

[0011] Technical effects and advantages of the utility model:

[0012] The utility model is provided with an air intake fan, a heat sink and an exhaust fan, which is beneficial for transmitting a set temperature signal to the heat dissipation controller position via the temperature sensor when the temperature inside the inner shell is high, so that the power group is turned on to send external cold air into the inner shell through the ventilation and heat dissipation duct, thereby replacing the heat inside the inner shell and reducing the internal temperature of the inner shell.

[0013] The utility model is provided with a photovoltaic panel and a drying box, which is beneficial to saving energy used for cooling when the low-voltage reactive power compensation energy-saving device performs cooling, avoiding excessive energy loss, and absorbing moisture in the air sent into the inner shell through the drying box to prevent affecting the normal operation of the inner shell. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic cross-sectional view of the overall structure of the utility model.

[0015] Figure 2 It is a schematic diagram of the overall structure of the utility model.

[0016] Figure 3 It is a schematic diagram of the outer shell structure of the utility model.

[0017] Figure 4 It is a schematic cross-sectional view of the ventilation and heat dissipation duct structure of the utility model.

[0018] Figure 5 It is a schematic cross-sectional view of the inner shell structure of the utility model.

[0019] The accompanying drawings are marked as follows: 1. outer shell; 101. rectangular inner cavity; 102. rectangular through hole; 103. circular through hole; 2. closed door; 3. door handle; 4. ventilation and heat dissipation duct; 401. duct inner cavity; 402. air inlet slot; 403. cold air deflector; 5. photovoltaic panel; 6. air inlet grille; 7. heat dissipation controller; 8. inner shell; 801. inner cavity; 802. isolation column; 803. air outlet grille; 9. power pack; 10. connecting line; 11. exhaust fan; 12. drying box; 1201. drying inner core; 1202. round handle; 13. dust net; 14. air inlet fan; 15. heat sink; 16. temperature sensor. DETAILED DESCRIPTION

[0020] The following will clearly and completely describe the technical solution of the utility model in conjunction with the drawings in the utility model. In addition, the forms of the various structures recorded in the following embodiments are merely examples. The low-voltage reactive power compensation and energy-saving device involved in the utility model is not limited to the various structures recorded in the following embodiments. All other implementation methods obtained by ordinary technicians in this field without making creative work belong to the scope of protection of the utility model.

[0021] Reference Figure 1-Figure 5As shown, the utility model provides a low-voltage reactive power compensation energy-saving device, a closed door 2 is movably connected to one side of the surface of an outer shell 1, a door handle 3 is provided on the surface of the closed door 2 away from the outer shell 1, ventilation and heat dissipation ducts 4 are provided at the inner positions on both sides of the outer shell 1, a photovoltaic panel 5 is fixedly connected to the top position of the outer shell 1, air intake grilles 6 are provided at the positions of the ventilation and heat dissipation ducts 4 opened on both sides of the surface of the outer shell 1, a heat dissipation controller 7 is provided at the bottom position of the outer shell 1, an inner shell 8 is fixedly connected near the top position of the outer shell 1, a power supply group 9 is fixedly connected to the surface of the outer shell 1 away from the closed door 2, connecting lines 10 are provided on both sides of the surface of the power supply group 9, and one end of the connecting line 10 away from the power supply group 9 is fixedly connected to one side of the surface of the ventilation and heat dissipation duct 4, and an exhaust fan 11 is provided near the top position on the surface of the side of the outer shell 1 fixedly connected to the power supply group 9, and the exhaust fan 11 is conducive to discharging the hot air inside the inner shell 8;

[0022] Reference Figure 3 As shown, a rectangular inner cavity 101 is opened inside the outer shell 1, rectangular through holes 102 are opened at the positions where the ventilation and heat dissipation duct 4 is opened in the outer shell 1, and a circular through hole 103 is opened at the position where the exhaust fan 11 is opened in the outer shell 1. The rectangular through holes 102 are convenient for the installation of the ventilation and heat dissipation duct 4.

[0023] Reference Figure 4 As shown, a pipe inner cavity 401 is opened inside the ventilation and heat dissipation duct 4, an air inlet slot 402 is opened at the top of the ventilation and heat dissipation duct 4 located at the bottom of the inner shell 8, and a cold air deflector 403 is opened at the middle position of the pipe inner cavity 401 of the ventilation and heat dissipation duct 4, which is conducive to sending external cold air into the inner shell 8 for cooling through the air inlet slot 402.

[0024] Reference Figure 4 As shown, dustproof nets 13 are provided near both ends of the ventilation and heat dissipation duct 4, neatly arranged air intake fans 14 are provided near the dustproof nets 13, drying boxes 12 are movably connected to the ventilation and heat dissipation duct 4 near the air intake fans 14 and away from the dustproof nets 13, and a drying core 1201 is movably connected to the drying box 12, and a round handle 1202 is fixedly connected to the surface of the drying core 1201 on one side away from the ventilation and heat dissipation duct 4, which is beneficial to absorb moisture in the air through the drying core 1201 to prevent gas containing water vapor from entering.

[0025] Reference Figure 5As shown, an inner cavity 801 is opened inside the inner shell 8, isolation columns 802 are opened on the four sides of the surface of the inner shell 8 near the corners, an air outlet grille 803 is opened at the top of the inner shell 8, heat sinks 15 are fixedly connected to both sides of the surface of the inner shell 8, and a temperature sensor 16 is fixedly connected to one side of the inner wall of the inner cavity 801. The temperature sensor 16 is conducive to real-time monitoring of the temperature changes inside the inner shell 8 and starting the air intake fan 14 according to the set temperature.

[0026] The working principle of the utility model is as follows: first, when using it, adjust the heat dissipation controller 7 at the bottom of the rectangular inner cavity 101 opened in the outer shell 1 according to actual needs, so that when the temperature sensor 16 opened on the inner wall of the inner cavity 801 opened in the inner shell 8 reaches the temperature value set by the heat dissipation controller 7, the temperature sensor 16 transmits a signal to the position of the heat dissipation controller 7, and the heat dissipation controller 7 starts the power group 9 opened on one side of the outer shell 1, and the power group 9 transmits electricity to the position of the air intake fan 14 in the pipe cavity 401 opened in the ventilation and heat dissipation pipe 4 through the connecting line 10, and the air intake fan 14 is started due to the power transmission, and the air intake fan 14 sucks in the external cold air through the dustproof net 13, and the dustproof net 13 filters the dust and impurities in the air, and then the filtered cold air enters the drying box 12 through the air intake fan 14, and the moisture in the air is adsorbed by the drying inner core 1201 in the drying box 12, so that the cold air is dried, and then the cold air is discharged through the pipe The inner cavity 401 reaches the position of the cold air guide plate 403 opened in the inner cavity 401 of the pipeline, and then enters the position of the air inlet slot 402 opened in the ventilation and heat dissipation duct 4 through the guidance of the cold air guide plate 403, and then enters the inner cavity 801 opened in the inner shell 8 through the air inlet slot 402, so that the hot air in the inner cavity 801 is cooled and discharged through the air outlet grille 803 on the top of the inner shell 8. At this time, the exhaust fan 11 in the circular through hole 103 opened in the outer shell 1 discharges the hot air dissipated from the air outlet grille 803, and then when the internal temperature of the inner shell 8 does not reach the preset temperature, the heat sinks 15 on both sides of the surface of the inner shell 8 can absorb the temperature inside the inner shell 8 to the position of the heat sink 15, and then the cold air entering through the position of the air inlet grille 6 opened in the outer shell 1 cools the heat sink 15, so that the internal temperature of the inner shell 8 is continuously cooled, thereby reducing the power loss of the power supply group 9, and when there is sufficient sunlight, the photovoltaic panel 5 converts light energy into electrical energy and stores it into the power supply group 9.

[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A low-voltage reactive power compensation energy-saving device, comprising an outer shell (1), characterized in that: A closed door (2) is movably connected to one side of the surface of the outer shell (1); a door handle (3) is provided on the side of the surface of the closed door (2) away from the outer shell (1); ventilation and heat dissipation ducts (4) are provided at internal positions on both sides of the outer shell (1); a photovoltaic panel (5) is fixedly connected to the top position of the outer shell (1); air intake grilles (6) are provided on both sides of the surface of the outer shell (1) near the ventilation and heat dissipation ducts (4); a heat dissipation controller (7) is provided at the bottom position of the outer shell (1); an inner shell (8) is fixedly connected to the top position of the outer shell (1); a power supply group (9) is fixedly connected to the side of the surface of the outer shell (1) away from the closed door (2); connecting lines (10) are provided on both sides of the surface of the power supply group (9); one end of the connecting line (10) away from the power supply group (9) is fixedly connected to one side of the surface of the ventilation and heat dissipation duct (4); and an exhaust fan (11) is provided on the side of the surface of the outer shell (1) located near the top position of the fixed connection to the power supply group (9).

2. A low-voltage reactive power compensation energy-saving device according to claim 1, characterized in that: A rectangular inner cavity (101) is provided inside the outer shell (1), rectangular through holes (102) are provided at locations where the ventilation and heat dissipation duct (4) is provided on the outer shell (1), and a circular through hole (103) is provided at locations where the exhaust fan (11) is provided on the outer shell (1).

3. A low-voltage reactive power compensation energy-saving device according to claim 1, characterized in that: The ventilation and heat dissipation duct (4) has a duct inner cavity (401) formed therein, an air inlet slot (402) is formed at the top of the ventilation and heat dissipation duct (4) located at the bottom of the inner shell (8), and a cold air guide plate (403) is formed at the middle of the duct inner cavity (401) formed in the ventilation and heat dissipation duct (4).

4. A low-voltage reactive power compensation energy-saving device according to claim 1, characterized in that: Dustproof nets (13) are provided near both ends of the ventilation and heat dissipation duct (4); neatly arranged air intake fans (14) are provided near the dustproof nets (13) inside the ventilation and heat dissipation duct (4); a drying box (12) is movably connected to the ventilation and heat dissipation duct (4) near the air intake fan (14) and away from the dustproof nets (13); a drying core (1201) is movably connected to the drying box (12); and a round handle (1202) is fixedly connected to the surface of the drying core (1201) on one side away from the ventilation and heat dissipation duct (4).

5. The low-voltage reactive power compensation energy-saving device according to claim 1, characterized in that: An inner cavity (801) is provided inside the inner shell (8), isolation columns (802) are provided on the surface of the inner shell (8) near the corners on all sides, an air outlet grille (803) is provided on the top of the inner shell (8), heat sinks (15) are fixedly connected to both sides of the surface of the inner shell (8), and a temperature sensor (16) is fixedly connected to one side of the inner wall of the inner cavity (801).

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