CN215185867U

CN215185867U - APF active filter heat radiation structure

Info

Publication number: CN215185867U
Application number: CN202121217011.7U
Authority: CN
Inventors: 王培兰; 李乐; 夏祥玉
Original assignee: Shanghai Howcore Electric Appliance Co ltd
Current assignee: Shanghai Howcore Electric Appliance Co ltd
Priority date: 2021-06-01
Filing date: 2021-06-01
Publication date: 2021-12-14
Anticipated expiration: 2031-06-01

Abstract

The utility model discloses a heat dissipation structure of an APF active filter, which comprises a heat dissipation plate which is detachably arranged on the front side wall of the APF active filter, a plurality of grid plate units are arranged on the heat dissipation plate in rows along the transverse direction, a plurality of mounting seats are arranged on the inner side of the heat dissipation plate in rows along the transverse direction, and each mounting seat is provided with a heat dissipation fan; when the heat dissipation plate is installed on the front side wall of the APF active filter, the heat dissipation fan is located below the pre-charging loop unit of the APF active filter. The utility model discloses it is simple and convenient to change radiator fan.

Description

APF active filter heat radiation structure

Technical Field

The utility model belongs to the power electronics industry field especially relates to an APF active filter heat radiation structure.

Background

The APF active filter detects the load current in the power grid in real time, quickly separates out harmonic current components, generates control instructions according to the magnitude of the harmonic current, generates compensating currents with the same magnitude and opposite directions in real time, injects the compensating currents into the power grid, and offsets the harmonic part of the load current, so that the aims of instantly filtering the harmonic current, improving the quality of the power grid and improving the utilization rate of electric energy are fulfilled.

The APF active filter mainly comprises a case, a high-power electronic device IGBT, high-frequency power inductors L1 and L2, a direct-current side capacitor, a control circuit board, a high-frequency filter circuit, a pre-charging circuit, a heat dissipation mechanism and the like.

The APF active filter can be damaged after the cooling fan reaches a certain service life due to long-term continuous work, a pre-charging loop (a capacitor and a loop part on the upper part of the fan) on the top is required to be completely disassembled when the fan is replaced, and the fan replacement is difficult.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough among the above-mentioned prior art, provide an APF active filter heat radiation structure, it is simple and convenient to change radiator fan.

In order to solve the technical problem, the utility model discloses a technical scheme is: an APF active filter heat dissipation structure comprises a heat dissipation plate detachably mounted on the front side wall of an APF active filter, a plurality of grid plate units are transversely arranged on the heat dissipation plate in a row, a plurality of mounting seats are transversely arranged on the inner side of the heat dissipation plate in a row, and a heat dissipation fan is mounted on each mounting seat; when the heat dissipation plate is installed on the front side wall of the APF active filter, the heat dissipation fan is located below the pre-charging loop unit of the APF active filter.

According to the APF active filter heat dissipation structure, the number of the installation seats is the same as that of the grid plate units, one installation seat is arranged right behind one grid plate unit, and the air outlet direction of the heat dissipation fan on the installation seat faces towards the grid plate unit.

In the APF active filter heat dissipation structure, the positions on the front side surface of the heat dissipation plate, which are close to the two ends, are respectively provided with the handle.

In the radiating structure of the APF active filter, the grid plate unit is clamped in the clamping hole on the radiating plate.

In the APF active filter heat dissipation structure, the mounting seat is fixed on the heat dissipation plate through the screw, and the grid plate unit on the front side of the mounting seat is limited in the clamping hole by the mounting seat.

Compared with the prior art, the utility model has the following advantage: the utility model discloses an it is integrated on the heating panel with radiator fan and grid tray unit to install the heating panel and realize the heat dissipation on APF active filter's preceding lateral wall, only need carry out certain transformation to original APF active filter, be about to fan part and peripheral panel beating part among the original APF active filter and demolish, adopt the flat board to support precharge circuit unit, then the utility model discloses a heating panel install can, compare original heat radiation structure, the utility model discloses the structure is retrencied more, and it is more convenient to dismantle the maintenance.

The technical solution of the present invention is further described in detail by the accompanying drawings and examples.

Drawings

Fig. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a rear view of fig. 1.

Fig. 3 is an exploded view of the internal structure of an APF active filter.

Description of reference numerals:

1-heat sink plate; 2-a grid plate unit; 3, mounting a base;

4-a radiator fan; 5-a pre-charge loop unit; 6-handle.

Detailed Description

As shown in fig. 1-3, the utility model comprises a heat dissipation plate 1 mounted on the front side wall of an APF active filter by screws, three grid plate units 2 are arranged on the heat dissipation plate 1 in rows along the transverse direction, three mounting seats 3 are arranged on the inner side of the heat dissipation plate 1 in rows along the transverse direction, and a heat dissipation fan 4 is mounted on each mounting seat 3; when the heat dissipation plate 1 is mounted on the front sidewall of the APF active filter, the heat dissipation fan 4 is located below the pre-charge circuit unit 5 of the APF active filter.

In this embodiment, one of the grid plate units 2 has one of the mounting seats 3 right behind it, and the air outlet direction of the cooling fan 4 on the mounting seat 3 faces the grid plate unit 2.

In this embodiment, the grid plate unit 2 is clamped in the clamping hole of the heat dissipation plate 1. Specifically, when the louver board unit 2 is installed, the louver board passes through the louver part from the inner side to the outer side of the heat dissipation plate 1, and the frame of the louver board unit 2 is clamped in the clamping hole.

Then, the mounting seat 3 is fixed on the heat dissipation plate 1 through screws, and the grid plate unit 2 on the front side of the mounting seat 3 is limited in the clamping hole. By adopting the installation mode, the grid plate unit 2 and the installation seat 3 can be quickly fixed with the heat dissipation plate 1.

Handles 6 are respectively arranged on the front side surface of the heat dissipation plate 1 near the two ends. By providing the handle 6, the main purpose is to provide a hand grip for the worker when mounting the heat dissipation plate 1 on the front side wall of the APF active filter.

The above, only be the utility model discloses a preferred embodiment, it is not right the utility model discloses do any restriction, all according to the utility model discloses the technical entity all still belongs to any simple modification, change and the equivalent structure change of doing above embodiment the utility model discloses technical scheme's within the scope of protection.

Claims

APF active filter heat radiation structure, its characterized in that: the APF active filter comprises a heat dissipation plate which is detachably arranged on the front side wall of the APF active filter, a plurality of grid plate units are arranged on the heat dissipation plate in a row along the transverse direction, a plurality of mounting seats are arranged on the inner side of the heat dissipation plate in a row along the transverse direction, and a heat dissipation fan is arranged on each mounting seat; when the heat dissipation plate is installed on the front side wall of the APF active filter, the heat dissipation fan is located below the pre-charging loop unit of the APF active filter.
2. The APF active filter heat dissipation structure of claim 1, wherein: the number of the installation seats is the same as that of the grid plate units, one installation seat is arranged right behind one grid plate unit, and the air outlet direction of the cooling fan on the installation seat faces the grid plate unit.
3. The APF active filter heat dissipation structure of claim 1, wherein: and the positions, close to the two ends, on the front side surface of the heat dissipation plate are respectively provided with a handle.
4. The APF active filter heat dissipation structure of claim 1, wherein: the grid plate unit is clamped in the clamping hole in the heat dissipation plate.
5. The APF active filter heat dissipation structure of claim 4, wherein: the mounting seat is fixed on the heat dissipation plate through screws, and the grid plate unit on the front side of the mounting seat is limited in the clamping hole by the mounting seat.