CN220291886U

CN220291886U - An inverter module for variable frequency power supply

Info

Publication number: CN220291886U
Application number: CN202321849422.7U
Authority: CN
Inventors: 郑姗姗
Original assignee: Zhijiang College of Zhejiang University of Technology
Current assignee: Zhijiang College of Zhejiang University of Technology
Priority date: 2023-07-14
Filing date: 2023-07-14
Publication date: 2024-01-02
Anticipated expiration: 2033-07-14

Abstract

The utility model provides an inversion module of a variable frequency power supply, which belongs to the field of inversion modules, and comprises: the IGBT unit is provided with a first heat radiation plate at the bottom, a second heat radiation plate is arranged at the upper end of the IGBT unit, and a capacitor bank connected with the IGBT unit is arranged at the upper end of the second heat radiation plate; the bottom of second heating panel is installed the heat-conducting plate, the bottom of heat-conducting plate is fixed with a plurality of first radiating fins, the upper end of second heating panel is fixed with a plurality of second radiating fins, the electric capacity group is connected with the IGBT unit through female row, two backing plates are installed to the bottom of first heating panel. According to the utility model, the capacitor group and the IGBT unit are stacked and staggered, so that the volume of the whole module is reduced, meanwhile, the capacitor group and the IGBT unit are arranged in a staggered manner, the influence between the capacitor group and the IGBT unit is reduced, and meanwhile, the capacitor group and the IGBT unit can be effectively radiated by the first radiating fin and the second radiating fin.

Description

Inverter module of variable frequency power supply

Technical Field

The utility model relates to the technical field of inverter modules, in particular to an inverter module of a variable-frequency power supply.

Background

The inversion module is a module assembly driven by the inversion module. The inverter module is a circuit for converting direct current into alternating current, and the inverter module is used for converting the direct current in the frequency converter into alternating current; in the prior art, an inverter module in the electronic power industry is generally composed of a bus capacitor, an IGBT and a heat dissipation piece.

In the existing inversion module, the bus capacitor and the IGBT are installed side by side, so that the whole volume of the inversion module is large, the requirements of corresponding heat dissipation assemblies are gradually increased, and the inversion whole device is relatively bulky.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides an inverter module of a variable frequency power supply.

The embodiment of the utility model provides an inverter module of a variable frequency power supply, which comprises:

the IGBT unit is provided with a first heat radiation plate at the bottom, a second heat radiation plate is arranged at the upper end of the IGBT unit, and a capacitor bank connected with the IGBT unit is arranged at the upper end of the second heat radiation plate;

the bottom of the second heat radiation plate is provided with a heat conduction plate, a plurality of first heat radiation fins are fixed at the bottom of the heat conduction plate, and a plurality of second heat radiation fins are fixed at the upper end of the second heat radiation plate.

Further, the capacitor bank is connected with the IGBT unit through the busbar, and the capacitor bank is positioned above the IGBT unit obliquely.

Further, two backing plates are installed at the bottom of the first heat dissipation plate, and the two backing plates are symmetrically arranged at the bottom of the first heat dissipation plate.

Further, two fixing blocks are fixed on the base plate, and mounting holes are formed in the two fixing blocks.

Further, an inverted U-shaped plate is fixed at the upper end of the second heat radiation plate, and the upper end of the capacitor bank is connected with the U-shaped plate.

Further, the U-shaped plate is made of aluminum alloy.

Compared with the prior art, the utility model has the following beneficial effects:

according to the utility model, the capacitor group and the IGBT unit are stacked and staggered, so that the volume of the whole module is reduced, meanwhile, the capacitor group and the IGBT unit are arranged in a staggered manner, the influence between the capacitor group and the IGBT unit is reduced, and meanwhile, the capacitor group and the IGBT unit can be effectively radiated by the first radiating fin and the second radiating fin.

Drawings

Fig. 1 is a schematic structural diagram of an inverter module of a variable frequency power supply according to an embodiment of the present utility model.

Fig. 2 is a schematic diagram of a backing plate in an inverter module of a variable frequency power supply according to an embodiment of the utility model.

In the above figures: 1 a first heat radiation plate, 2 a second heat radiation plate, 3 a heat conduction plate, 4 a first heat radiation fin, 5IGBT units, 6U-shaped plates, 7 capacitor banks, 8 a second heat radiation fin, 9 backing plates, 10 fixing blocks and 11 mounting holes.

Detailed Description

The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.

As shown in fig. 1-2, an embodiment of the present utility model provides an inverter module of a variable frequency power supply, including:

the IGBT unit 5, the first heat radiation plate 1 is installed at the bottom of the IGBT unit 5, the second heat radiation plate 2 is installed at the upper end of the IGBT unit 5, the capacitor group 7 connected with the IGBT unit 5 is installed at the upper end of the second heat radiation plate 2, the capacitor group 7 is connected with the IGBT unit 5 through a busbar, and the capacitor group 7 is positioned above the IGBT unit 5 obliquely, so that the heat of the capacitor group 7 and the heat of the IGBT unit 5 are not easy to influence each other due to staggering, and the normal work and the effective heat radiation are facilitated;

the bottom of the second heat radiation plate 2 is provided with a heat conduction plate 3, the upper end of the second heat radiation plate 2 is fixedly provided with an inverted U-shaped plate 6, the upper end of the capacitor bank 7 is connected with the U-shaped plate 6, and the U-shaped plate 6 is made of aluminum alloy; the bottom of heat-conducting plate 3 is fixed with a plurality of first radiating fins 4, and the upper end of second heating panel 2 is fixed with a plurality of second radiating fins 8, and two backing plates 9 are installed to the bottom of first heating panel 1, and two backing plates 9 symmetry set up in the bottom of first heating panel 1, are fixed with two fixed blocks 10 on backing plate 9, all are equipped with mounting hole 11 on two fixed blocks 10.

The detailed working process of the utility model is as follows:

1. according to the utility model, the capacitor bank 7 and the IGBT unit 5 are stacked and staggered, so that the volume of the whole module is reduced, meanwhile, the capacitor bank 7 and the IGBT unit 5 are arranged in a staggered mode, the influence between the capacitor bank 7 and the IGBT unit 5 is reduced, and meanwhile, the first radiating fins 4 and the second radiating fins 8 are arranged to effectively radiate heat of the capacitor bank 7 and the IGBT unit 5.

Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.

Claims

1. An inverter module for variable frequency power supply, which is characterized in that it includes:

IGBT unit (5), a first heat dissipation plate (1) is installed at the bottom of the IGBT unit (5), and a second heat dissipation plate (2) is installed at the upper end of the IGBT unit (5). The second heat dissipation plate The upper end of (2) is installed with a capacitor group (7) connected to the IGBT unit (5);

A heat conduction plate (3) is installed at the bottom of the second heat dissipation plate (2), and a plurality of first heat dissipation fins (4) are fixed at the bottom of the heat conduction plate (3). The second heat dissipation plate (2) A plurality of second heat dissipation fins (8) are fixed on the upper end.

2. An inverter module for variable frequency power supply according to claim 1, characterized in that:

The capacitor group (7) is connected to the IGBT unit (5) through a busbar, and the capacitor group (7) is located obliquely above the IGBT unit (5).

3. An inverter module for variable frequency power supply according to claim 1, characterized in that:

Two pads (9) are installed on the bottom of the first heat dissipation plate (1), and the two pads (9) are symmetrically arranged on the bottom of the first heat dissipation plate (1).

4. An inverter module for variable frequency power supply according to claim 3, characterized in that:

Two fixing blocks (10) are fixed on the backing plate (9), and the two fixing blocks (10) are both provided with mounting holes (11).

5. An inverter module for variable frequency power supply according to claim 1, characterized in that:

An inverted U-shaped plate (6) is fixed on the upper end of the second heat dissipation plate (2), and the upper end of the capacitor group (7) is connected to the U-shaped plate (6).

6. An inverter module for variable frequency power supply according to claim 5, characterized in that:

The U-shaped plate (6) is made of aluminum alloy.