CN214543633U - APF active power filter - Google Patents

Abstract

The utility model belongs to the technical field of active power filter, especially, relate to an APF active power filter, including the main part, its characterized in that, the activity grafting in the main part has a plurality of mounting panels, the mounting panel divides into filter placing chamber, reactor installation chamber, APF installation chamber and transformer placing chamber from top to bottom in proper order the main part is inside, the main part bottom inlays and is equipped with radiator fan, the main part lateral wall has seted up the heat dissipation strip hole, the heat dissipation strip hole corresponds with filter placing chamber, reactor installation chamber, APF installation chamber and transformer placing chamber inner part respectively, main part bottom one side is erect and is equipped with the water tank, the other side frame of main part bottom is equipped with the water pump, main part inner wall one side is inlayed and is equipped with the inlet tube; the utility model discloses, design scientific and reasonable more, reduced the emergence of harmonic greatly, whole part calorific capacity is low, has reduced the energy consumption, and is small, the cost is low, and the installation is simple, and the performance is more stable, and reliability, security are better, and are more practical.

Description

APF active power filter

Technical Field

The utility model relates to an active power filter technical field especially relates to an APF active power filter.

Background

APF, namely an active power filter, adopts the modern power electronic technology, the main topology is a three-level inverter circuit, and the novel power harmonic wave treatment special equipment is manufactured by the digital signal processing technology based on the high-speed all-digital control mode. The compensation circuit consists of two main parts, namely an instruction current arithmetic circuit and a compensation current generating circuit. Compared with a traditional passive filter (which is equivalent to providing a very low impedance channel close to 0 for harmonic current so as to avoid injecting harmonic current into a system), the active filter realizes dynamic filtering of each harmonic through the IGBT inversion module.

The existing APF active power filter is unreasonable in overall structure design, the harmonic waves of the internal components can cause the heat productivity of the internal components to be too large, and then the power failure fault is frequently caused to occur, so that loss is caused, and the internal equipment of the existing APF active power filter is inconvenient to disassemble and maintain, so that inconvenience is brought to actual use of the existing APF active power filter.

In order to solve the above problems, an APF active power filter is proposed in the present application.

SUMMERY OF THE UTILITY MODEL

Objects of the invention

For solving the technical problem that exists among the background art, the utility model provides an APF active power filter has design scientific and reasonable more, has reduced the emergence of harmonic greatly, and whole part calorific capacity is low, has reduced the energy consumption, and is small, the cost is low, and the installation is simple, and the performance is more stable, and reliability, security are better, more practical characteristics.

(II) technical scheme

In order to solve the problem, the utility model provides an APF active power filter, including the main part, its characterized in that, the inside activity of main part is pegged graft and is had a plurality of mounting panels, the mounting panel is cut apart into the wave filter in proper order with the inside top-down of main part and is placed chamber, reactor installation cavity, APF installation cavity and transformer and place the chamber, the main part bottom is inlayed and is equipped with radiator fan, the heat dissipation strip hole has been seted up to the main part lateral wall, the heat dissipation strip hole is placed chamber, reactor installation cavity, APF installation cavity and transformer respectively and is placed intracavity portion and correspond with the wave filter, main part bottom one side frame is equipped with the water tank, main part bottom another side bearer is equipped with the water pump, main part inner wall one side is inlayed and is equipped with the inlet tube, main part inner wall opposite side is inlayed and is equipped with the outlet pipe, main part inner wall still inlays and is equipped with the U-shaped pipe that communicates with inlet tube and outlet pipe respectively.

Furthermore, the water inlet end of the water pump is connected with a water tank flange, the water outlet end of the water pump is connected with a water inlet pipe flange, and the water outlet pipe is connected with a water tank flange.

Furthermore, a plurality of slots are symmetrically formed in the side wall of the main body, and two ends of the mounting plate are movably inserted into the slots.

Furthermore, the upper side and the lower side of the mounting plate are both provided with sliding grooves, the inner wall of each slot is fixedly connected with a spring rod, and the lower end of each spring rod is fixedly connected with a sliding block inserted in each sliding groove.

Furthermore, a plurality of threaded holes which are uniformly distributed at intervals are formed in the mounting plate.

Further, a transformer is connected to the inner portion of the transformer placing cavity in a threaded mode.

Further, the lower part of the main body is fixedly connected with a fixed seat.

The above technical scheme of the utility model has following profitable technological effect: the utility model discloses, design scientific and reasonable more, reduced the emergence of harmonic greatly, whole part calorific capacity is low, has reduced the energy consumption, and is small, the cost is low, and the installation is simple, and the performance is more stable, and reliability, security are better, and are more practical.

Drawings

Fig. 1 is a schematic view of the internal structure of the present invention;

FIG. 2 is a schematic cross-sectional view of the main body of the present invention;

FIG. 3 is a schematic view of the connection structure between the mounting plate and the main body of the present invention;

fig. 4 is a schematic view of the overall structure of the mounting plate of the present invention;

fig. 5 is a schematic side view of the main body of the present invention.

In the figure: 1. a main body; 2. a fixed seat; 3. mounting a plate; 4. a filter placement cavity; 5. a reactor installation cavity; 6. an APF mounting cavity; 7. a transformer placing cavity; 8. a water inlet pipe; 9. a water outlet pipe; 10. a transformer; 11. a water tank; 12. a heat radiation fan; 13. a water pump; 14. a U-shaped tube; 15. a threaded hole; 16. a chute; 17. a slot; 18. a slider; 19. a spring lever; 20. and (4) radiating strip holes.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.

As shown in fig. 1-5, the APF active power filter provided by the present invention comprises a main body 1, wherein a fixing seat 2 is fixedly connected to the lower portion of the main body 1 to ensure the stability of the main body 1;

the main body 1 is of a frame structure, a plurality of mounting plates 3 are movably inserted into the main body 1, the mounting plates 3 divide the interior of the main body 1 into a filter placing cavity 4, a reactor mounting cavity 5, an APF mounting cavity 6 and a transformer placing cavity 7 from top to bottom in sequence, and it is further noted that the filter placing cavity 4 is internally provided with a filter, the reactor mounting cavity 5 is internally provided with a reactor, the APF mounting cavity 6 is internally provided with an APF, and the transformer placing cavity 7 is internally provided with a transformer 10;

in order to realize the heat dissipation of the interior of the main body 1, a heat dissipation fan 12 is embedded at the bottom of the main body 1, and a heat dissipation strip hole 20 is formed in the side wall of the main body 1, wherein the heat dissipation strip hole 20 corresponds to the interior of the filter placing cavity 4, the reactor installing cavity 5, the APF installing cavity 6 and the transformer placing cavity 7 respectively;

wind power generated by the cooling fan 12 can cool the interiors of the filter placing cavity 4, the reactor installing cavity 5, the APF installing cavity 6 and the transformer placing cavity 7 respectively, and hot air after heat dissipation can flow out through the corresponding cooling strip holes 20, so that the filter placing cavity 4, the reactor installing cavity 5, the APF installing cavity 6 and the transformer placing cavity 7 can be cooled respectively;

it should be further noted that, in order to ensure the effect of cooling the inside of the main body 1, a water tank 11 is arranged on one side frame of the bottom of the main body 1, a water pump 13 is arranged on the other side frame of the bottom of the main body 1, a water inlet pipe 8 is embedded on one side of the inner wall of the main body 1, a water outlet pipe 9 is embedded on the other side of the inner wall of the main body 1, and a U-shaped pipe 14 respectively communicated with the water inlet pipe 8 and the water outlet pipe 9 is also embedded on the inner wall of the main body 1, wherein the U-shaped pipe 14 is respectively embedded in the inner walls of the filter placing cavity 4, the reactor installing cavity 5, the APF installing cavity 6 and the transformer placing cavity 7 correspondingly, it should be noted that the water inlet end of the water pump 13 is flange-connected with the water tank 11, the water outlet end of the water pump 13 is flange-connected with the water inlet pipe 8, and the water outlet pipe 9 is flange-connected with the water tank 11;

cooling water in the water tank 11 can be extracted through the water pump 13 and conveyed into the water inlet pipe 8, the cooling water in the water inlet pipe 8 flows into the U-shaped pipe 14, the filter placing cavity 4, the reactor installing cavity 5, the APF installing cavity 6 and the transformer placing cavity 7 in the main body 1 can be cooled respectively, and the cooling water flows back into the water tank 11 through the water outlet pipe 9 after being cooled, so that the cooling of the interior of the main body 1 is realized;

in order to facilitate the disassembly and maintenance of equipment installed inside the main body 1, a plurality of slots 17 are symmetrically formed in the side wall of the main body 1, and two ends of the installation plate 3 are movably inserted into the slots 17;

for the elasticity of the bolster mounting plate 3 during installation and use, sliding grooves 16 are formed in the upper side and the lower side of the mounting plate 3, spring rods 19 are fixedly connected to the inner walls of the inserting grooves 17, and sliding blocks 18 inserted in the sliding grooves 16 are fixedly connected to the lower ends of the spring rods 19;

wherein, for facilitating the equipment to fix on 3 upper portions of mounting panel, set up a plurality of interval evenly distributed's screw hole 15 in 3 inside setups of mounting panel, equipment accessible screw hole 15 screw thread is installed on 3 upper portions of mounting panel to in installation and the maintenance to equipment.

The utility model discloses a theory of operation: when the cooling device is used, two ends of the mounting plate 3 are movably inserted in the inserting grooves 17 in sequence, the sliding block 18 is movably buckled in the sliding groove 16, a plurality of devices are fixed in the threaded holes 15 in the mounting plate 3 through the bolts and the threads in sequence, the devices can be mounted, the devices can vibrate during use, the spring rod 19 can play a role in damping, when the interior of the main body 1 needs to be cooled, the external switch controls the cooling fan 12 to work, wind power generated by the cooling fan 12 can respectively cool the interior of the filter placing cavity 4, the reactor mounting cavity 5, the APF mounting cavity 6 and the transformer placing cavity 7, hot air after heat dissipation can flow out through the corresponding cooling strip holes 20, the filter placing cavity 4, the reactor mounting cavity 5, the APF mounting cavity 6 and the transformer placing cavity 7 can be cooled respectively, and the external switch controls the water pump 13 to work, can extract the inside cooling water of water tank 11 through water pump 13 to carry the cooling water to the inlet tube 8 inside, the inside cooling water of inlet tube 8 flows into inside the U-shaped pipe 14, can place chamber 4, reactor installation cavity 5, APF installation cavity 6 and transformer to the inside wave filter of main part 1 respectively and place chamber 7 and cool down, inside the cooling water flows back to water tank 11 through outlet pipe 9 after the cooling, the realization is to the inside cooling temperature of main part 1.

The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited by the above embodiments, and the description in the above embodiments and the description is only preferred examples of the present invention, and is not intended to limit the present invention, and that the present invention can have various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (7)

1. An APF active power filter comprises a main body (1) and is characterized in that a plurality of mounting plates (3) are movably inserted into the main body (1), the mounting plates (3) divide the interior of the main body (1) into a filter placing cavity (4), a reactor mounting cavity (5), an APF mounting cavity (6) and a transformer placing cavity (7) from top to bottom in sequence, a radiating fan (12) is embedded at the bottom of the main body (1), a radiating strip hole (20) is formed in the side wall of the main body (1), the radiating strip hole (20) corresponds to the interiors of the filter placing cavity (4), the reactor mounting cavity (5), the APF mounting cavity (6) and the transformer placing cavity (7) respectively, a water tank (11) is erected on one side of the bottom of the main body (1), a water pump (13) is arranged on the other side frame of the bottom of the main body (1), a water inlet pipe (8) is embedded on one side of the inner wall of the main body (1), the water outlet pipe (9) is embedded in the other side of the inner wall of the main body (1), and a U-shaped pipe (14) which is respectively communicated with the water inlet pipe (8) and the water outlet pipe (9) is also embedded in the inner wall of the main body (1).

2. The APF active power filter according to claim 1, wherein the water inlet end of the water pump (13) is flanged with the water tank (11), the water outlet end of the water pump (13) is flanged with the water inlet pipe (8), and the water outlet pipe (9) is flanged with the water tank (11).

3. The APF active power filter according to claim 1, wherein a plurality of slots (17) are symmetrically formed in the side wall of the main body (1), and two ends of the mounting plate (3) are movably inserted into the slots (17).

4. The APF active power filter according to claim 3, wherein sliding grooves (16) are formed in the upper side and the lower side of the mounting plate (3), a spring rod (19) is fixedly connected to the inner wall of the slot (17), and a sliding block (18) inserted in the sliding groove (16) is fixedly connected to the lower end of the spring rod (19).

5. The APF active power filter according to claim 1, wherein the mounting plate (3) has a plurality of threaded holes (15) formed therein at regular intervals.

6. An APF active power filter according to claim 1, characterized in that the transformer placing cavity (7) is internally threaded with a transformer (10).

7. The APF active power filter according to claim 1, characterized in that a fixing base (2) is fixedly connected to the lower part of the main body (1).

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