阅读说明：本技术 一种高度集成化电机控制系统 (Highly integrated motor control system ) 是由 张�杰 潘永健 王旭峰 赵艳丽 于 2020-07-28 设计创作，主要内容包括：本发明公开一种高度集成化电机控制系统,涉及IGBT领域,包括控制驱动一体化电路板、IGBT模块、电容、三相输出母排,传感器用屏蔽罩、三相铜排注塑件和IGBT用散热器,采用了不同方式的直连互焊工艺,相比市面上的方案可靠性和一致性更好,该设计具有结构紧凑、集成度高、重量轻、平台扩展灵活等技术特点,同时设计上省去了传统的螺栓连接和线束连接,装配更加简便,适合自动化批量制造,也为更高自动化程度装配提供了工艺基础。(The invention discloses a highly integrated motor control system, which relates to the field of Insulated Gate Bipolar Transistor (IGBT), and comprises a control and drive integrated circuit board, an IGBT module, a capacitor, a three-phase output bus bar, a shielding cover for a sensor, a three-phase copper bar injection molding part and a radiator for the IGBT.)

1. The highly integrated motor control system is characterized by comprising a control and drive integrated circuit board (1), an IGBT module (2), a capacitor (3) and a three-phase output busbar (4), a shielding cover (5) for a sensor, a three-phase copper bar injection molding part (6) and a radiator (7) for the IGBT, wherein the IGBT module (2) is welded on the radiator (7) for the IGBT, each phase of the IGBT module (2) is composed of 2 IGBT tubes of an upper bridge and a lower bridge, the 2 IGBT tubes are horizontally arranged side by side, an IGBT collector electrode (201) and an IGBT emitter electrode (202) of the IGBT module (2) are connected with a capacitor output copper bar (303) of the capacitor (3), and the output end of the IGBT module is connected with the three-phase output busbar (4);

electric capacity (3) and three-phase copper bar injection molding (6) install respectively in the both sides of radiator (7) for the IGBT, female (4) below of arranging of three-phase output is equipped with shield cover (5) for the sensor, and female (4) of three-phase output and three-phase copper bar injection molding (6) integrated into one piece, control drive integration circuit board (1) is respectively through circuit board erection column (306) and circuit board fixing support (601) fixed connection on shell and three-phase copper bar injection molding (6) of electric capacity (3) to cover female (4) of three-phase output.

2. A highly integrated motor control system according to claim 1, characterized in that: an IGBT collector electrode (201) of an upper bridge and an IGBT emitter electrode (202) of a lower bridge of the IGBT module (2) are respectively connected with the positive electrode and the negative electrode of a capacitance output copper bar (303) of a capacitance (3), and an IGBT gate pole (203) of the IGBT module (2) is directly welded with the control and drive integrated circuit board (1).

3. A highly integrated motor control system according to claim 1, characterized in that: and the IGBT module (2) is formed by arranging 6 IGBT tubes side by side to form a three-phase full bridge.

4. A highly integrated motor control system according to claim 1, characterized in that: the capacitor (3) is arranged in a capacitor mounting groove (701) on the left side of the radiator (7) for the IGBT, the three-phase copper bar injection molding piece (6) is arranged in an injection molding piece mounting plate (702) on the right side of the radiator (7) for the IGBT, and the front end and the rear end of the radiator (7) for the IGBT are respectively provided with a water pipe (703).

5. A highly integrated motor control system according to claim 1, characterized in that: the IGBT module (2) is directly welded on an IGBT welding boss (8) on the radiator (7) for the IGBT through a vacuum welding process, and a temperature sensor setting block (801) is arranged on the rear side of the IGBT welding boss (8).

6. A highly integrated motor control system according to claim 5, wherein: be equipped with shield cover slot (101) on drive integration circuit board (1), and magnetic induction chip (102) and temperature sensor support (103) are still installed to its bottom, temperature sensor support (103) are located temperature sensor and set up directly over piece (801).

7. A highly integrated motor control system according to claim 1, characterized in that: the outside of electric capacity (3) still is equipped with positive input terminal (301) of high voltage direct current and high voltage direct current negative input terminal (302), and the top of electric capacity (3) is equipped with spacing hole of control panel (305), still be connected with busbar voltage sampling pin (304) on electric capacity output copper bar (303), busbar voltage sampling pin (304) still weld on control drive integrated circuit board (1).

8. A highly integrated motor control system according to claim 1, characterized in that: and a three-phase copper bar outlet (602) is also arranged on the outer side of the three-phase copper bar injection molding piece (6).

Technical Field

The invention relates to the field of Insulated Gate Bipolar Transistors (IGBT), in particular to a highly integrated motor control system.

Background

The traditional motor control system is generally large in size and loose in interior in structure, generally adopts the modes of bolt connection, wire harness connection and the like, and heat-conducting silicone grease is required to be filled between components, so that the size and the weight are large, the thermal resistance of the system is generally large, and the reliability is not ideal.

Moreover, the components are generally small in size, are assembled one by one, need manual operation no matter in connection of wire harnesses or fixation of bolts, are low in production efficiency, and are not suitable for automatic batch manufacturing.

Disclosure of Invention

The invention aims to provide a highly integrated motor control system, which adopts direct-connection mutual welding processes in different modes, has better reliability and consistency compared with the scheme on the market, has the technical characteristics of compact structure, high integration level, light weight, flexible platform expansion and the like, saves the traditional bolt connection and wire harness connection in design, is more convenient to assemble, is suitable for automatic batch manufacturing, and provides a process foundation for assembly with higher automation degree.

A highly integrated motor control system comprises a control and drive integrated circuit board, an IGBT module, a capacitor, a three-phase output bus bar, a shielding cover for a sensor, a three-phase copper bar injection molding piece and a radiator for the IGBT, wherein the IGBT module is welded on the radiator for the IGBT;

electric capacity and three-phase copper bar injection molding are installed respectively in the both sides of radiator for the IGBT, female below of arranging of three-phase output is equipped with the shield cover for the sensor, and female and three-phase copper bar injection molding integrated into one piece of arranging of three-phase output, control drive integration circuit board is respectively through circuit board erection column and circuit board fixing support fixed connection on the shell and the three-phase copper bar injection molding of electric capacity to cover female the arranging of three-phase output.

Preferably, an IGBT collector of the upper bridge and an IGBT emitter of the lower bridge of the IGBT module are respectively connected with the positive electrode and the negative electrode of a capacitor output copper bar of the capacitor, and an IGBT gate of the IGBT module is directly welded with the control and drive integrated circuit board.

Preferably, the IGBT module is formed by arranging IGBT tubes side by side to form a three-phase full bridge.

Preferably, the capacitor is installed in a capacitor installation groove on the left side of the radiator for the IGBT, the three-phase copper bar injection molding is installed in an injection molding installation plate on the right side of the radiator for the IGBT, and a water pipe is respectively arranged at the front end and the rear end of the radiator for the IGBT.

Preferably, the IGBT module is directly welded on an IGBT welding boss on the radiator for the IGBT through a vacuum welding process, and a temperature sensor setting block is arranged on the rear side of the IGBT welding boss.

Preferably, be equipped with the shield cover slot on the drive integration circuit board, and its bottom still installs magnetic induction chip and temperature sensor support, the temperature sensor support is located the temperature sensor and sets up the piece directly over.

Preferably, the outside of electric capacity still is equipped with positive input terminal of high voltage direct current and high voltage direct current negative input terminal, and the top of electric capacity is equipped with the spacing hole of control panel, still be connected with busbar voltage sampling pin on the electric capacity output copper bar, busbar voltage sampling pin still welds on control drive integration circuit board.

Preferably, the outer side of the three-phase copper bar injection molding piece is also provided with a three-phase copper bar outlet.

The invention has the advantages that: simple structure has adopted the direct mutual welding technology of different modes, compares scheme reliability and uniformity on the market better, and this design has technical characterstic such as compact structure, integrated level height, light in weight, platform extension are nimble, has saved traditional bolted connection and pencil connection in the design simultaneously, and the assembly is more simple and convenient, is fit for automatic batch manufacturing, also provides the technology basis for the assembly of higher degree of automation.

Drawings

FIG. 1 is an exploded view of the front side view of the device of the present invention;

FIG. 2 is an exploded view of the rear view of the device of the present invention;

the device comprises a control and drive integrated circuit board 1, a 101, a shield slot, 102, a magnetic induction chip 103, a temperature sensor support, 2, an IGBT module, 201, an IGBT collector, 202, an IGBT emitter, 203, an IGBT gate pole, 3, a capacitor, 301, a high-voltage direct current positive input terminal, 302, a high-voltage direct current negative input terminal, 303, a capacitor output copper bar, 304, a bus voltage sampling pin, 305, a control board limiting hole, 306, a circuit board mounting column, 4, a three-phase output busbar, 5, a shield for a sensor, 6, a three-phase copper bar injection molding part, 601, a circuit board fixing support, 602, a three-phase copper bar outlet, 7, a radiator for the IGBT, 701, a capacitor mounting groove, 702, an injection molding part mounting plate, 703, a water pipe, 8, an IGBT welding boss, 801 and a temperature sensor setting block.

Detailed Description

In order to make the technical means, the creation characteristics, the achievement purposes and the effects of the invention easy to understand, the invention is further described below by combining the specific embodiments.

As shown in fig. 1 to 2, a highly integrated motor control system comprises a control and drive integrated circuit board 1, an IGBT module 2, a capacitor 3, a three-phase output bus bar 4, a sensor shield 5, a three-phase copper bar injection molding 6 and a radiator 7 for IGBT, wherein the IGBT module 2 is welded on the radiator 7 for IGBT, each phase of the IGBT module 2 is composed of 2 IGBT tubes of an upper bridge and a lower bridge, the 2 IGBT tubes are horizontally arranged side by side, an IGBT collector 201 and an IGBT emitter 202 of the IGBT module 2 are connected with a capacitor output copper bar 303 of the capacitor 3, and an output end of the IGBT collector 201 and the IGBT emitter 202 are connected with the three-phase output bus bar 4;

electric capacity 3 and three-phase copper bar injection molding 6 install respectively in the both sides of radiator 7 for the IGBT, female 4 below that arranges of three-phase output is equipped with shield cover 5 for the sensor, and female 4 and the 6 integrated into one piece of three-phase copper bar injection molding of arranging of three-phase output, control drive integration circuit board 1 is respectively through circuit board erection column 306 and circuit board fixing support 601 fixed connection on electric capacity 3's shell and three-phase copper bar injection molding 6 to cover female 4 of arranging of three-phase output.

Electric capacity 3 and three-phase copper bar injection molding 6 install respectively in the both sides of radiator 7 for the IGBT, female 4 below that arranges of three-phase output is equipped with shield cover 5 for the sensor, and female 4 and the 6 integrated into one piece of three-phase copper bar injection molding of arranging of three-phase output, control drive integration circuit board 1 is respectively through circuit board erection column 306 and circuit board fixing support 601 fixed connection on electric capacity 3's shell and three-phase copper bar injection molding 6 to cover female 4 of arranging of three-phase output.

The IGBT collector 201 of the upper bridge and the IGBT emitter 202 of the lower bridge of the IGBT module 2 are respectively connected with the positive electrode and the negative electrode of a capacitor output copper bar 303 of a capacitor 3, and the IGBT gate electrode 203 of the IGBT module 2 is directly welded with the control and drive integrated circuit board 1.

And the IGBT module 2 is formed by arranging 6 IGBT tubes side by side to form a three-phase full bridge.

The capacitor 3 is installed in a capacitor installation groove 701 on the left side of the radiator 7 for the IGBT, the three-phase copper bar injection molding part 6 is installed in an injection molding part installation plate 702 on the right side of the radiator 7 for the IGBT, and the front end and the rear end of the radiator 7 for the IGBT are respectively provided with a water pipe 703.

The IGBT module 2 is directly welded on an IGBT welding boss 8 on an IGBT radiator 7 through a vacuum welding process, and a temperature sensor setting block 801 is arranged on the rear side of the IGBT welding boss 8. The solder bumps 8 are used to solder the IGBT module 2 to the IGBT heat sink 7 and ensure that an effective electrical gap is maintained with the IGBT heat sink 7.

The integrated drive circuit board 1 is provided with a shielding case slot 101, the bottom of the integrated drive circuit board is also provided with a magnetic induction chip 102 and a temperature sensor support 103, and the temperature sensor support 103 is located right above the temperature sensor setting block 801.

The outside of electric capacity 3 still is equipped with positive input terminal 301 of high voltage direct current and high voltage direct current negative input terminal 302, and the top of electric capacity 3 is equipped with the spacing hole 305 of control panel, still be connected with busbar voltage sampling pin 304 on electric capacity output copper bar 303, busbar voltage sampling pin 304 still welds on control drive integration circuit board 1. The bus voltage sampling pin 304 is used for controlling the control and drive integrated circuit board 1 to collect bus voltage, and is directly welded with the control and drive integrated circuit board 1.

The outer side of the three-phase copper bar injection molding piece 6 is also provided with a three-phase copper bar outlet 602.