Explosion-proof low-voltage parallel capacitor

Abstract

The explosion-proof low-voltage parallel capacitor comprises a base, the middle end of the upper surface of the base is fixedly connected with a base, the outer surface of the base is provided with a plurality of air inlet holes, the upper end of the front surface of an inner cavity of the base is fixedly connected with a hole plate, and the left side and the right side of the upper surface of the hole plate are both movably connected with driven fans. A first servo motor is fixedly connected to the middle end of the bottom of an inner cavity of the base, a first fan is fixedly connected to the output end of the first servo motor, the first fan is in transmission connection with a driven fan through a belt, and a shell is fixedly connected to the middle end of the upper surface of the base. According to the utility model, the driven fan is arranged on the upper surface of the hole plate, the driven fan can be driven by the first servo motor to rotate, the second fan is arranged on the left side of the second gear, the second fan can be driven by the second servo motor to rotate, and the heat dissipation efficiency and safety of the capacitor are greatly improved.

Description

Technical Field

[0001] The utility model relates to the technical field of capacitors, in particular to an explosion-proof low-voltage parallel capacitor. Background Art

[0002] Shunt capacitors, formerly known as phase-shifting capacitors, are mainly used to compensate for the reactive power of inductive loads in power systems to increase power factor, improve voltage quality, and reduce line losses. Installing shunt capacitors in substations is an effective measure to improve voltage quality and reduce power loss.

[0003] For example, the Chinese utility model provides "an explosion-proof low-voltage parallel capacitor", and its announcement number is: CN213845052U, including a shell, a top cover is fixedly connected to the top of the inner cavity of the shell, a terminal is arranged on the surface of the top cover, a slide is movably connected to the upper end of the inner cavity of the shell, a connection box is arranged in the center of the surface of the slide, and conductive joints are arranged on both sides of the inner cavity of the connection box. The utility model is provided with a heat-conducting sleeve, a capacitor group core, a heat expansion member, a push rod, a conductive joint, a conductive movable rod and a conductive block. When the capacitor group core continues to heat up, the heat is conducted to deform the heat expansion member to both ends, drive the conductive block to slide outward, and release the contact with the conductive joint, which plays a role of power-off protection. By providing a shell, a terminal, a top cover, a connection box and a slide, it can ensure that the terminal and the conductive joint are still in a connected state when the pressure inside the device changes. The existing low-voltage parallel capacitor has poor heat dissipation effect, which makes it easy to explode when used, affecting the safety of use. For this reason, we propose an explosion-proof low-voltage parallel capacitor. Utility Model Content

[0004] The utility model aims to provide an explosion-proof low-voltage parallel capacitor, which has the advantage of explosion-proof and solves the problem that the existing low-voltage parallel capacitor has poor heat dissipation effect, which makes it easy to explode when used and affects the safety of use.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an explosion-proof low-voltage parallel capacitor, comprising a base, a base is fixedly connected to the middle end of the upper surface of the base, a plurality of air inlet holes are provided on the outer surface of the base, a perforated plate is fixedly connected to the upper end of the front of the inner cavity of the base, and driven fans are movably connected to the left and right sides of the upper surface of the perforated plate, a first servo motor is fixedly connected to the middle end of the bottom of the inner cavity of the base, a first fan is fixedly connected to the output end of the first servo motor, and the first fan is connected to the driven fan through a belt. A shell is fixedly connected to the middle end of the upper surface of the base, and a plurality of second ventilation holes are provided on the left and right sides of the shell, a protective plate is fixedly connected to the left side of the shell, a column is fixedly connected to the right side of the upper surface of the base, a mounting plate is fixedly connected to the upper end of the inner cavity of the column, a second servo motor is fixedly connected to the upper surface of the mounting plate, a plurality of first gears are fixedly connected to the output end of the second servo motor, a plurality of second gears are movably connected to the left side of the inner cavity of the column, and a second fan is fixedly connected to the left side of the second gear.

[0006] Preferably, the right side of the outer surface of the shell and the outer surface of the column are fixedly connected with a slide rail, the inner surface of the slide rail is movably connected with a protective shell, and the outer surface of the protective shell is provided with a plurality of first ventilation holes.

[0007] Preferably, a capacitor body is fixedly connected to the bottom of the inner cavity of the shell, and two connectors are fixedly connected to the upper surface of the capacitor body.

[0008] Preferably, both left and right sides of the first servo motor are fixedly connected with fixing frames, and the bottom end of the fixing frames is fixedly connected to the bottom of the inner cavity of the base.

[0009] Preferably, a plurality of connecting rods are fixedly connected to the outer surface of the base, and an annular plate is fixedly connected to the outer side of the connecting rods.

[0010] Preferably, both left and right sides of the upper surface of the base are movably connected with fixing bolts, and the outer surfaces of the fixing bolts are coated with anti-rust paint.

[0011] Compared with the prior art, the beneficial effects of the utility model are as follows:

[0012] 1. The utility model arranges the driven fan on the upper surface of the perforated plate, and can drive the driven fan to rotate through the first servo motor. The second fan is arranged on the left side of the second gear, and can be driven to rotate by the second servo motor, thereby greatly increasing the heat dissipation efficiency and safety of the capacitor.

[0013] 2. The utility model arranges the protective plate on the left side of the shell, thereby preventing the fragments from damaging other electronic structures through the second ventilation hole on the left side of the shell when the capacitor body explodes. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the three-dimensional structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0016] Figure 3 This is an enlarged structural diagram of point A of the utility model.

[0017] In the figure: 1. base; 2. annular plate; 3. pedestal; 4. protective plate; 5. shell; 6. slide rail; 7. protective shell; 8. first ventilation hole; 9. column; 10. second ventilation hole; 11. fixing bolt; 12. fixing frame; 13. air inlet hole; 14. perforated plate; 15. first fan; 16. capacitor body; 17. connector; 18. second fan; 19. driven fan; 20. connecting rod; 21. first servo motor; 22. first gear; 23. second gear; 24. second servo motor; 25. mounting plate. DETAILED DESCRIPTION

[0018] 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.

[0019] See also Figure 1-3 A low-voltage explosion-proof parallel capacitor includes a base 1, a base 3 is fixedly connected to the middle end of the upper surface of the base 1, a plurality of air inlet holes 13 are opened on the outer surface of the base 3, a perforated plate 14 is fixedly connected to the upper end of the front of the inner cavity of the base 3, and a driven fan 19 is movably connected to the left and right sides of the upper surface of the perforated plate 14, a first servo motor 21 is fixedly connected to the middle end of the bottom of the inner cavity of the base 3, a first fan 15 is fixedly connected to the output end of the first servo motor 21, and the first fan 15 is connected to the driven fan 19 through a belt. A shell 5 is fixedly connected to the middle end, and a plurality of second ventilation holes 10 are opened on the left and right sides of the shell 5. A protective plate 4 is fixedly connected to the left side of the shell 5. A column 9 is fixedly connected to the right side of the upper surface of the base 3. A mounting plate 25 is fixedly connected to the upper end of the front side of the inner cavity of the column 9. A second servo motor 24 is fixedly connected to the upper surface of the mounting plate 25. A plurality of first gears 22 are fixedly connected to the output end of the second servo motor 24. A plurality of second gears 23 are movably connected to the left side of the inner cavity of the column 9. A second fan 18 is fixedly connected to the left side of the second gear 23.

[0020] The right side of the outer surface of the shell 5 and the outer surface of the column 9 are fixedly connected with a slide rail 6, and the inner surface of the slide rail 6 is movably connected with a protective shell 7. The outer surface of the protective shell 7 is provided with a plurality of first ventilation holes 8.

[0021] The protective shell 7 can increase the safety of the second fan 18 and prevent the capacitor body 16 from exploding and damaging other electronic structures through the second ventilation hole 10 on the right side of the shell 5. The slide rail 6 can facilitate the movement of the protective shell 7.

[0022] A capacitor body 16 is fixedly connected to the bottom of the inner cavity of the housing 5 , and two connectors 17 are fixedly connected to the upper surface of the capacitor body 16 .

[0023] The connection head 17 is provided to facilitate the connection of the capacitor body 16 with other electrical components.

[0024] The left and right sides of the first servo motor 21 are both fixedly connected with a fixing frame 12 , and the bottom end of the fixing frame 12 is fixedly connected to the bottom of the inner cavity of the base 3 .

[0025] The fixing frame 12 is provided to increase the stability of the first servo motor 21 .

[0026] A plurality of connecting rods 20 are fixedly connected to the outer surface of the base 3 , and an annular plate 2 is fixedly connected to the outer side of the connecting rods 20 .

[0027] The annular plate 2 and the connecting rod 20 can increase the safety of the device and prevent foreign matter from being ejected through the air inlet 13 .

[0028] The left and right sides of the upper surface of the base 1 are movably connected with fixing bolts 11, and the outer surfaces of the fixing bolts 11 are coated with anti-rust paint.

[0029] The base 1 can be fixed by rotating the fixing bolt 11, and the service life of the fixing bolt 11 can be increased by applying anti-rust paint.

[0030] When in use, the first servo motor 21 is started through the external controller, the first servo motor 21 drives the first fan 15 to rotate, the first fan 15 drives the driven fan 19 to rotate through the belt, so as to dissipate heat for the capacitor body 16, the second servo motor 24 is started through the external controller, the second servo motor 24 drives the first gear 22 to rotate, the first gear 22 drives the second fan 18 to rotate through the second gear 23, and the air can be introduced into the shell 5 through the second ventilation hole 10 on the right side of the shell 5, so as to further increase the heat dissipation efficiency of the capacitor body 16.

[0031] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An explosion-proof low-voltage shunt capacitor, comprising a base (1), characterized in that: The middle end of the upper surface of the base (1) is fixedly connected to a base (3), the outer surface of the base (3) is provided with a plurality of air inlet holes (13), the upper end of the front of the inner cavity of the base (3) is fixedly connected to a perforated plate (14), the left and right sides of the upper surface of the perforated plate (14) are movably connected to driven fans (19), the middle end of the bottom of the inner cavity of the base (3) is fixedly connected to a first servo motor (21), the output end of the first servo motor (21) is fixedly connected to a first fan (15), the first fan (15) is connected to the driven fan (19) through a belt, and the middle end of the upper surface of the base (3) is fixedly connected to a housing (5). A plurality of second ventilation holes (10) are provided on both left and right sides of the shell (5); a protective plate (4) is fixedly connected to the left side of the shell (5); a column (9) is fixedly connected to the right side of the upper surface of the base (3); a mounting plate (25) is fixedly connected to the upper end of the front side of the inner cavity of the column (9); a second servo motor (24) is fixedly connected to the upper surface of the mounting plate (25); a plurality of first gears (22) are fixedly connected to the output end of the second servo motor (24); a plurality of second gears (23) are movably connected to the left side of the inner cavity of the column (9); and a second fan (18) is fixedly connected to the left side of the second gear (23).

2. The explosion-proof low-voltage shunt capacitor according to claim 1, characterized in that: The right side of the outer surface of the shell (5) and the outer surface of the column (9) are both fixedly connected with a slide rail (6), the inner surface of the slide rail (6) is movably connected with a protective shell (7), and the outer surface of the protective shell (7) is provided with a plurality of first ventilation holes (8).

3. The explosion-proof low-voltage shunt capacitor according to claim 1, characterized in that: A capacitor body (16) is fixedly connected to the bottom of the inner cavity of the shell (5), and two connectors (17) are fixedly connected to the upper surface of the capacitor body (16).

4. The explosion-proof low-voltage parallel capacitor according to claim 1, characterized in that: The left and right sides of the first servo motor (21) are both fixedly connected to a fixing frame (12), and the bottom end of the fixing frame (12) is fixedly connected to the bottom of the inner cavity of the base (3).

5. The explosion-proof low-voltage shunt capacitor according to claim 1, characterized in that: A plurality of connecting rods (20) are fixedly connected to the outer surface of the base (3), and an annular plate (2) is fixedly connected to the outer side of the connecting rod (20).

6. The explosion-proof low-voltage shunt capacitor according to claim 1, characterized in that: The left and right sides of the upper surface of the base (1) are movably connected with fixing bolts (11), and the outer surfaces of the fixing bolts (11) are coated with anti-rust paint.

Images