CN201663541U - A drive control unit box for an IGBT power module - Google Patents

Abstract

The utility model discloses a driving control unit box of an IGB power module. The driving control unit box is characterized in that: the driving control unit box comprises a box body, a box cover and a driving control plate; the box body and the box cover are fixed on the side surface of a machine frame of the IGB power module; the box cover is sleeved onto the cover body; the driving control plate is installed on a plurality of mounting copper columns at the bottom plate of the box body, is parallel to the bottom plate of the box body, and is provided with a driving power-supply interface and an output interface. The driving control unit box of modular structure has simple structure, is convenient and flexible to assemble and disassemble, and has good anti-interference capacity and radiating performance.

Description

A drive control unit box for an IGBT power module

technical field

The utility model belongs to the technical field of electric power electronic conversion, and relates to a drive control unit box of an IGBT power module.

Background technique

The IGBT power module is generally composed of the main circuit of the converter, the IGBT drive circuit, the heat dissipation mechanism and the rack. The IGBT driving circuit of the existing IGBT power module is a non-modular structure, and the electrical shielding performance is poor, and the stable operation of the IGBT power module is not used; and there are disadvantages such as inconvenient installation and disassembly, which brings many difficulties to the subsequent maintenance of the equipment.

Utility model content

The technical problem to be solved by the utility model is to provide a drive control unit box for an IGBT power module. The drive control unit box has a modular structure, simple structure, flexible and convenient installation and disassembly, and good anti-interference ability and heat dissipation performance.

The technical scheme that the utility model adopts for solving the problems of the technologies described above is:

A drive control unit box for an IGBT power module, characterized in that it includes a box body, a box cover and a drive control board; the box body and the box cover are fixed on the side of the frame of the IGBT power module; the box cover is set on the box body The drive control board is installed on a plurality of installation copper pillars on the bottom plate of the box body; the drive control board is parallel to the bottom plate of the box body; the drive control board is provided with a drive power interface and an output interface.

The sides of the box body and the box cover are provided with cooling holes or cooling grooves; the inside edge of the box cover is surrounded by conductive collodion.

The beneficial effects of the utility model have:

(1) The drive control unit box has a modular box structure, which is easy to disassemble and install.

(2) Good heat dissipation performance: the box body and the box cover of the drive control unit box are provided with heat dissipation grooves or heat dissipation holes, which can utilize the heat dissipation of the electronic devices on the drive control board.

(3) Good shielding performance: Since the drive control board is set in a metal box, the shielding performance is greatly improved compared with that of the original driving circuit. In addition, the inner wall of the box cover is provided with conductive rubber cotton, so that the box body and the box cover form a good electrical connection, and further improve the shielding performance of the drive control board.

Description of drawings

Fig. 1 is a schematic bottom view sectional structure diagram of the drive control unit box in the embodiment of the present invention.

Fig. 2 is a schematic view of the front structure of the drive control unit box with the cover removed in the embodiment of the present invention.

Fig. 3 is a schematic diagram of the front structure of the drive control unit box in the embodiment of the present invention.

Explanation of symbols: 41-drive control board; 41a-output interface; 41b-drive power interface; 42-box body; 43-box cover; 44-copper post installation; 45-conductive collodion; 46-ground nut.

Detailed ways

Below in conjunction with accompanying drawing and specific embodiment the utility model is further described.

Example 1:

As shown in FIGS. 1-3 , the drive control unit box includes a drive control board 41 , an outer shell composed of a box body 42 and a box cover 43 . The drive control board 41 integrates the drive circuit of the IGBT and the control circuit of the entire module unit. All its input/output interfaces are distributed on the upper and lower sides according to their functions. The power interface 41b, while other interfaces are all distributed on its upper side. The drive control board 41 is installed in the box body 42 formed by sheet metal stamping and welding, and is fixed on the installation copper column 44 at the bottom of the box body 42. The upper and lower side walls of the box body 42 correspond to the The position of the input and output interface has made the connector insertion hole of the input and output interface. Also, the box cover 43 is buckled on the box body 42 by bending and forming sheet metal. The shell of the whole drive control unit box has fully considered the heat dissipation and electromagnetic compatibility requirements of the drive control unit box in the design: a certain number of heat dissipation holes are arranged on the top of the box cover 43 and the upper and lower sides of the box body 42, and the shape of the heat dissipation holes can be Circular or non-circular holes; and the protective ground of the drive control board 41 is connected to the housing by installing copper pillars 44, and conductive rubber cotton 45 is pasted around the inner edge of the box cover 43 of the housing, when the box cover 4 buckles When being closed on the box body 42, the box cover 43 and the box body 42 are electrically connected as a whole by the conductive rubber cotton 45, and are connected to the earth by the frame [the box cover is fixed on the frame by the ground nut 46].

The drive control unit box with the above features can open the box cover 43 without dismantling any other parts, no matter in the production process, in the after-sales maintenance process, or in the debugging process after the module unit is installed. , the debugging is very convenient, and, when the box cover 43 is closed, the status indicators of the drive control board 41 can be observed through the many cooling holes on the box cover 43 to determine its working state; The drive control board 41 can be easily replaced; meanwhile, the drive control unit box with the above-mentioned features can be pre-assembled into an independent unit and be ready for use after passing the test. Since the circuit parameters are designed with wide adaptability in mind, this drive control unit box can be used for various power electronic power module units within a certain range of electrical parameters. Therefore, the drive control unit box with the above characteristics is a modular structure in the true sense.

Claims (2)

1. A drive control unit box for an IGBT power module, characterized in that it comprises a box body, a lid and a drive control board; the box body and the lid are all fixed on the side of the frame of the IGBT power module; the lid is set on the box On the body; the drive control board is installed on multiple installation copper pillars on the bottom plate of the box body; the drive control board is parallel to the bottom plate of the box body; the drive control board is provided with a drive power interface and an output interface. 2. The drive control unit box of the IGBT power module according to claim 1, characterized in that, the side of the box body and the box cover are provided with cooling holes or cooling grooves; the inside edge of the box cover is all pasted with conductive glue cotton.

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