CN211701490U

CN211701490U - Radiating module of active filter

Info

Publication number: CN211701490U
Application number: CN202020240134.1U
Authority: CN
Inventors: 苏毅民
Original assignee: Guangdong Huizhihua Electric Co ltd
Current assignee: Guangdong Huizhihua Electric Co ltd
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2020-10-16
Anticipated expiration: 2030-03-02

Abstract

The utility model discloses an active filter's heat dissipation module, include: the air-blast device, installation shell and aluminium base board, the installation shell falls into upper space and lower floor's space, compensation capacitor group is installed to the upper space, IGBT switch and control panel, the IGBT switch welds on aluminium base board, the IGBT switch passes through the wire and is connected with compensation capacitor group, the control panel passes through the wire and is connected with the IGBT switch, lower floor's space is equipped with radiator and wind channel, a lateral wall and the air outlet of air-blast device of radiator are connected, another lateral wall and the wind channel of radiator are connected, the air-blast device is used for flowing through the air current in radiator and wind channel, the control panel is used for controlling the IGBT switch and drops. The distance between the IGBT switch and the compensation capacitor bank is short, interference factors of signal transmission are reduced, and the input and the removal of the compensation capacitor bank can be performed more stably. The utility model discloses mainly used active filter.

Description

Radiating module of active filter

Technical Field

The utility model relates to a power equipment technical field, in particular to active filter's heat dissipation module.

Background

The active filter is a novel power electronic device for dynamically inhibiting harmonic waves and compensating reactive power, can quickly track and compensate harmonic waves with different sizes and frequencies, is called as an active filter, can only passively absorb the harmonic waves with fixed frequency and size relative to a passive LC filter, can control and actively output the size, frequency and phase of current by sampling load current and quickly respond to the current to offset corresponding current in the load.

The existing active filter generally adopts a modular form to install each element in a cabinet in a modular form. However, the heat dissipation module of the conventional active filter cannot achieve both heat dissipation and reliability, and thus, the overall performance of the entire active filter is poor.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an active filter's radiating module to the radiating module who solves current active filter can't compromise the problem of heat dissipation and reliability.

The utility model provides a solution of its technical problem is: a heat dissipation module for an active filter, comprising: the air-blowing device comprises an air-blowing device, an installation shell and an aluminum substrate, wherein the installation shell is divided into an upper space and a lower space, a compensation capacitor group, an IGBT switch and a control board are installed in the upper space, the IGBT switch is welded on the aluminum substrate and is connected with the compensation capacitor group through a wire, the control board is connected with the IGBT switch through a wire, a radiator and an air duct are arranged in the lower space, one side wall of the radiator is connected with an air outlet of the air-blowing device, the other side wall of the radiator is connected with the air duct, the air-blowing device is used for air flow flowing through the radiator and the air duct, and the control board is used for controlling the IGBT switch to.

Furthermore, the side wall of the upper layer space is provided with a vent hole. Through the ventilation hole, the heat exchange between the upper space and the external space of the heat dissipation module is facilitated.

Further, the control panel is installed on the aluminum substrate through a copper column.

Further, the air blowing device is a cross-flow fan.

The utility model has the advantages that: because in the upper space that IGBT switch and control panel set up, consequently make the distance between IGBT switch and the compensation capacitance group shorter, reduce signal transmission's interference factor for the input and the excision of compensation capacitance group can more stable execution. The stability of the active filter using the heat dissipation module is improved.

Drawings

In order to more clearly illustrate the technical solution in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below. It is clear that the described figures represent only some embodiments of the invention, not all embodiments, and that a person skilled in the art can also derive other designs and figures from these figures without inventive effort.

Fig. 1 is a schematic cross-sectional structure diagram of a heat dissipation module of an active filter;

fig. 2 is a schematic perspective view of a heat dissipation module of an active filter.

Detailed Description

The conception, the specific structure, and the technical effects produced by the present invention will be clearly and completely described below in conjunction with the embodiments and the accompanying drawings to fully understand the objects, the features, and the effects of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and other embodiments obtained by those skilled in the art without inventive labor based on the embodiments of the present invention all belong to the protection scope of the present invention. In addition, all the coupling/connection relationships mentioned herein do not mean that the components are directly connected, but mean that a better coupling structure can be formed by adding or reducing coupling accessories according to specific implementation conditions. All technical characteristics in the invention can be interactively combined on the premise of not conflicting with each other.

Referring to fig. 1 and 2, a heat dissipation module of an active filter includes: the air blowing device comprises an air blowing device 100, an installation shell 200 and an aluminum substrate, wherein the installation shell 200 is bent into a box shape through a metal plate, the installation shell 200 is divided into an upper layer space and a lower layer space, a compensation capacitor group 210, an IGBT switch 240 and a control board 230 are installed in the upper layer space, the IGBT switch 240 is welded on the aluminum substrate, the IGBT switch 240 is connected with the compensation capacitor group 210 through a conducting wire, the control board 230 is connected with the IGBT switch 240 through a conducting wire, and the lower layer space is provided with a radiator 110 and an air duct 120. One side wall of the heat sink 110 is connected to an air outlet of the air blowing device 100, the other side wall of the heat sink 110 is connected to the air duct 120, and the air blowing device 100 is used for air flowing through the heat sink 110 and the air duct 120. Wherein, the control board 230 is used for controlling the IGBT switch 240 to switch on and switch off the compensation capacitor bank 210, and the air duct 120 is enclosed by the outer wall of the mounting case 200.

When the heat dissipation module operates, the blowing device 100 is activated and generates flowing wind. The flowing wind passes through the heat sink 110 and the wind duct 120, and effectively dissipates heat generated from the IGBT switch 240. Moreover, since the compensation capacitor bank 210 is not far from the IGBT switch 240, the IGBT switch 240 can stably implement the switching-in and switching-off of the compensation capacitor bank 210 under the control of the control board 230. In order to realize the reliability and stability of active filter, the utility model discloses the creative is integrated compensating capacitor group 210 in heat radiation module, because compensating capacitor group 210 is insensitive to the heat, consequently will compensate capacitor group 210 and set up in the upper space to can not cause very big influence to compensating capacitor group 210. On the contrary, since the IGBT switch 240 and the control board 230 are also disposed in the upper space, the distance between the IGBT switch 240 and the compensation capacitor bank 210 is short, and the interference factor of signal transmission is reduced, so that the input and the cut-off of the compensation capacitor bank 210 can be performed more stably. The stability of the active filter using the heat dissipation module is improved.

In some embodiments, the upper space is provided with a vent hole 220 on a sidewall thereof. Through the ventilation holes 220, heat exchange between the upper space and the external space of the heat dissipation module is facilitated.

In some embodiments, the control board 230 is mounted to the aluminum substrate by copper posts 231.

In some embodiments, the air blowing device 100 is a crossflow blower. By setting the air blowing device 100 as a cross flow fan, the noise of the heat dissipation module can be further reduced.

While the preferred embodiments of the present invention have been described in detail, it will be understood by those skilled in the art that the invention is not limited to the details of the embodiments shown, but is capable of various modifications and changes without departing from the spirit of the invention.

Claims

1. A heat dissipation module of an active filter, comprising: a blower device (100), a mounting case (200) and an aluminum substrate, the mounting case (200) being divided into an upper space and a lower space, the upper layer space is provided with a compensation capacitor group (210), an IGBT switch (240) and a control panel (230), the IGBT switch (240) is welded on the aluminum substrate, the IGBT switch (240) is connected with the compensation capacitor bank (210) through a lead, the control board (230) is connected with an IGBT switch (240) through a lead, the lower layer space is provided with a radiator (110) and an air duct (120), one side wall of the radiator (110) is connected with an air outlet of the air blowing device (100), the other side wall of the radiator (110) is connected with the air duct (120), the air blowing device (100) is used for air flow passing through the radiator (110) and the air duct (120), the control board (230) is used for controlling the IGBT switch (240) to switch in and switch out the compensation capacitor bank (210).

2. The heat dissipation module of an active filter according to claim 1, wherein the side wall of the upper space is provided with a vent hole (220).

3. The heat dissipation module of claim 1, wherein the control board (230) is mounted on the aluminum substrate via a copper pillar (231).

4. The heat dissipation module of an active filter according to claim 1, characterized in that the blower means (100) is a cross-flow fan.