CN219718933U - Active power filter APF structure - Google Patents

Abstract

The utility model discloses an active power filter APF structure, which comprises a box body, wherein an inner groove is arranged in the box body, four mounting columns are fixedly connected to the side wall of the bottom of the inner groove, a placing plate is connected to the mounting columns, side plates are fixedly connected to the edges of the two sides of the top of the placing plate, the side plates are L-shaped structures, fins are connected in the transverse plates in a penetrating manner, a fan box is fixedly connected to the middle of the side wall of the top of the box body, and a wind groove is formed in the middle of the side walls of the two opposite sides in the inner groove: the heat generated on the filter body can be guided and discharged through the established fins and the pressboard, and the filter belongs to pure mechanical physical cooling, and the heat conductivity can be reduced by arranging a plurality of through grooves on the mounting column in a penetrating manner because the heat conducting silica gel pad is arranged to increase the heat guiding and radiating effect.

Description

Active power filter APF structure

Technical Field

The utility model relates to the technical field of heat dissipation structures, in particular to an active power filter APF structure.

Background

The filter is a current power harmonic device, the APF active power filter is one of a plurality of current filters, and the active power filter mainly realizes harmonic dynamic elimination of each time through an inversion module.

Specific reference may be made to publication No.: an APF active power filter of CN214543633U is used for describing an APF, namely an active power filter in detail, adopts a modern power electronic technology, adopts a three-level inverter circuit as a main topology, and is novel special equipment for power harmonic treatment, which is manufactured by a digital signal processing technology based on a high-speed all-digital control mode. The circuit consists of two main parts, namely an instruction current operation circuit and a compensation current generation circuit. Compared with the traditional passive filter (which is equivalent to providing an extremely low impedance channel close to 0 for harmonic current so as to avoid harmonic current injection system), the active filter realizes dynamic filtering of various subharmonics through the IGBT inversion module, and simultaneously provides the existing APF active power filter.

The technical scheme who adopts above-mentioned is "can be with the inside cooling water extraction of water tank through the water pump to carry inside the inlet tube with the cooling water, the inside cooling water inflow of inlet tube is inside the U-shaped pipe, can place chamber, reactor installation cavity, APF installation cavity and transformer to the inside wave filter of main part respectively and place the chamber and cool down, and inside the cooling water was refluxed to the water tank through the outlet pipe after the cooling, realized the cooling to the inside cooling of main part.

The cooling liquid is cooled by circulating the cooling liquid, and the cooling liquid needs to be replaced and supplemented by starting an external water pump at regular time, so that the overall cost of the filter is increased, and the filter is built for the cooling liquid.

Disclosure of Invention

The technical scheme adopted for solving the technical problems is as follows: the utility model provides an active power filter APF structure, includes the box, the inside groove that has set up of box, four erection columns of inside groove bottom lateral wall fixedly connected with, be connected with on the erection column and place the board, the both sides border of placing the board top is equal fixedly connected with side board, the side board is L shape structure, and alternate in the transverse plate and connect with the fin, fixedly connected with fan case in the middle of the box top lateral wall, the wind groove has been seted up in the middle of the both sides lateral wall that is relative in the inside groove, threaded connection has the double-screw bolt is all alternate at the both ends of side board transverse plate, the double-screw bolt passes the one end rotation of side board through and connects on the top lateral wall at pressboard both ends, one side lateral wall fixedly connected with heat conduction silica gel pad that the double-screw bolt was kept away from to the pressboard, the one end of fin passes side board fixedly connected with on the top lateral wall of pressboard.

As a preferable technical scheme of the utility model, through grooves are uniformly formed in the mounting columns in a penetrating manner, the mounting columns are of hollow structures, inserting plates are flexibly and movably connected to the side walls of the placing plates opposite to the through grooves, springs are fixedly connected to the inside of the connecting positions of the placing plates and the inserting plates, and one ends of the springs are fixedly connected with one ends of the inserting plates.

Through setting up logical groove and hollow structure's erection column, the cooling effect when heat conduction in the erection column can effectually be improved.

As an optimized technical scheme of the utility model, the fan box is internally connected with the blowing fan blade, a side groove is formed in the side wall of the box body, the air groove is communicated with the side groove, a three-way pipe is fixedly connected to the side wall at the top in the side groove, the inside of the box body is communicated with the three-way pipe, two ends of the three-way pipe are fixedly connected with an air pipe, and air outlets are uniformly formed in the side wall, opposite to the air groove, of the air pipe.

Natural wind for cooling is finally fed into the inner groove through the wind pipe by blowing, so that the filter and components in the inner groove are effectively cooled.

The utility model has the following advantages: the heat that produces on the filter organism can be conducted through fin and the pressboard of setting up and discharged, belong to pure mechanical physics cooling, because set up the effect that heat conduction silica gel pad can increase heat guide and distribute, link up on the erection column and offer a plurality of logical grooves and can reduce thermal conductivity, because the existence of leading to the groove reduces the medium of heat conduction, when heat flows on the erection column simultaneously, because there is logical groove can increase the heat dissipation rate, can effectually improve cooling effect and cost in the blowing of cooperation fan.

Drawings

FIG. 1 is a schematic perspective view of a preferred embodiment of the present utility model;

FIG. 2 is a schematic view of a side panel partial plan view of a preferred embodiment of the present utility model;

FIG. 3 is a schematic view of a partial plan view of a tank according to a preferred embodiment of the present utility model;

fig. 4 is a partial perspective view of a mounting post according to a preferred embodiment of the present utility model.

Reference numerals illustrate: 1. a case; 2. an inner tank; 3. a fan case; 4. a wind groove; 5. a mounting column; 6. placing a plate; 7. a side plate; 8. a fin; 9. a pressing plate; 10. a stud; 11. a thermally conductive silicone pad; 12. a side groove; 13. an air duct; 14. a through groove; 15. and (5) inserting plates.

Detailed Description

The utility model is further described below with reference to the accompanying drawings.

Referring to fig. 1-3 in combination, an APF structure of an active power filter of the present utility model includes a case 1, an inner tank 2 is set inside the case 1, four mounting posts 5 are fixedly connected to bottom side walls of the inner tank 2, a placement plate 6 is connected to the mounting posts 5, side plates 7 are fixedly connected to two side edges of top of the placement plate 6, the side plates 7 are L-shaped structures, fins 8 are inserted and connected in the transverse plates, a fan case 3 is fixedly connected to middle of top side walls of the case 1, air slots 4 are provided in middle of opposite side walls of the inner tank 2, studs 10 are inserted and screwed at two ends of the transverse plates of the side plates 7, one ends of the studs 10 penetrating through the studs 10 are connected to top side walls of two ends of a pressing plate 9 in a rotating manner, one side wall of the pressing plate 9 far from the studs 10 is fixedly connected with a heat conducting silica gel pad 11, and one ends of the fins 8 penetrate through the side plates 7 and are fixedly connected to top side walls of the pressing plate 9.

The filter is placed on the placement plate 6, the two sides of the filter are located under the pressing plate 9, after placement is completed, the pressing plate 9 is driven to descend by the rotating studs 10 to press the filter, stability of the filter is guaranteed, and the filter can be absorbed and guided by fixing a layer of heat conducting silica gel pad 11 on the side wall of the bottom of the pressing plate 9, then heat is conducted out through the pressing plate 9 and the fins 8 fixed with the pressing plate 9, so that the function of primary heat dissipation is achieved.

The mechanical heat dissipation is free from a plurality of extra machines to cool, so that the installation and use cost of the filter is saved, the sustainability of the cooling effect can be guaranteed through mechanical cooling, and the cooling liquid is used to ensure the sufficiency of the cooling liquid at any time, so that the cooling effect is influenced.

Through grooves 14 are uniformly formed in the mounting columns 5 in a penetrating mode, the mounting columns 5 are of hollow structures, inserting plates 15 are flexibly and movably connected to the side walls of the placing plates 6 opposite to the through grooves 14, springs are fixedly connected to the inside of the positions, where the placing plates 6 are connected with the inserting plates 15, of the placing plates, and one ends of the springs are fixedly connected with one ends of the inserting plates 15.

Along with the heat transfer can finally get into on the erection column 5, traditional installation is the cylinder structure of realization, but also because solid cylinder structure, lead to thermal transfer efficiency higher, the heat will be conducted very fast to inside groove 2 in the whole space, therefore this technical scheme sets up erection column 5 into cavity and evenly link up the structure of seting up a plurality of logical grooves 14, hollow structure can reduce the heat and attach the rate on erection column 5, and because hollow structure also can reduce heat conduction efficiency because the conduction medium reduces, in the cooperation leads to groove 14 can guarantee that the heat directly gets into the air when giving off, reduce the heat that erection column 5 contains, just also reduced the heat conduction rate in inside groove 2, and the heat gets into the air and can be directly digested by the air and realize the cooling effect.

The fan case 3 internal connection has the flabellum of blowing, has seted up side groove 12 in the lateral wall of box 1, and wind groove 4 and side groove 12 intercommunication, and side groove 12 internal top lateral wall fixedly connected with three-way pipe, box 1 inside and three-way pipe intercommunication, and the equal fixedly connected with tuber pipe 13 in both ends of three-way pipe, the even air outlet of having seted up of lateral wall that tuber pipe 13 is relative with wind groove 4.

In order to avoid that heat in the air fills up the space of the inner tank 2 and leads to the space inside to rise in temperature, the fan is started to send the blown-out wind into the two air pipes 13 through the three-way pipe, and the inner tank 2 is blown down through the air outlet arranged on the side wall of the air pipe 13, so that the heat in the inner tank 2 is blown away, the temperature of the mounting column 5 and the air tank 4 is not too high, continuous heat transfer is guaranteed, and the continuity and the effectiveness of cooling are guaranteed.

The foregoing is merely a preferred embodiment of the present utility model and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the present utility model, which are intended to be comprehended within the scope of the present utility model.

Other parts of the present utility model not described in detail are all of the prior art, and are not described in detail herein.

Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present utility model, and not for limiting the same; although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some or all of the technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit of the utility model.

Claims (5)

1. The utility model provides an active power filter APF structure, includes box (1), its characterized in that, inside groove (2) of having established of box (1), four erection columns (5) of inside groove (2) bottom lateral wall fixedly connected with, be connected with on erection column (5) and place board (6), the both sides border of placing board (6) top is all fixedly connected with side board (7), side board (7) are L shape structure, and alternate in the transverse plate to be connected with fin (8), fixedly connected with fan case (3) in the middle of box (1) top lateral wall, wind groove (4) have been seted up in the middle of the opposite both sides lateral wall in inside groove (2).

2. An APF structure for an active power filter according to claim 1, wherein the two ends of the lateral plate (7) are threaded with studs (10), the studs (10) are rotatably connected to top side walls at two ends of the pressing plate (9) through one end of the studs passing through the lateral plate (7), a side wall of the pressing plate (9) far away from the studs (10) is fixedly connected with a heat-conducting silica gel pad (11), and one end of the fin (8) passes through the lateral plate (7) and is fixedly connected to top side walls of the pressing plate (9).

3. An APF structure for an active power filter according to claim 1, wherein through grooves (14) are uniformly formed in the mounting columns (5) in a penetrating manner, the mounting columns (5) are hollow, the side walls of the placing plate (6) opposite to the through grooves (14) are flexibly and movably connected with inserting plates (15), springs are fixedly connected inside the connecting positions of the placing plate (6) and the inserting plates (15), and one ends of the springs are fixedly connected with one ends of the inserting plates (15).

4. An APF structure for an active power filter according to claim 1, wherein a blower blade is connected in the fan case (3), a side slot (12) is formed in a side wall of the case (1), the air slot (4) is communicated with the side slot (12), and a tee pipe is fixedly connected to an inner top side wall of the side slot (12).

5. An APF structure for an active power filter according to claim 4, wherein the inside of the box (1) is communicated with a tee pipe, two ends of the tee pipe are fixedly connected with an air pipe (13), and air outlets are uniformly formed in the side walls of the air pipe (13) opposite to the air duct (4).