Novel SIC integrated motor controller

Abstract

The utility model discloses a novel SIC integrated motor controller, which comprises a box body assembly, an upper cover plate, a high-voltage wiring cover plate and a lower cover plate, the upper cover plate is arranged above the box body assembly, the high-voltage wiring cover plate is arranged on the side of the box body assembly, and the lower cover plate is arranged below the box body assembly; a drive and control integrated board assembly, a high-voltage board, a PDU assembly, a filter, a direct-current wire holder, a three-phase alternating-current wire holder, a thin-film capacitor assembly and an auxiliary drive three-in-one assembly are installed in the box body assembly. The box body assembly is divided into an upper layer and a lower layer by a middle partition plate, the drive-control integrated plate assembly, the high-voltage plate, the PDU assembly, the filter, the direct-current wire holder, the three-phase alternating-current wire holder and the thin-film capacitor assembly are installed on the upper layer, and the auxiliary drive three-in-one assembly is installed on the lower layer. According to the utility model, through integrated design of the thin film capacitor assembly, the drive-control integrated board assembly and the auxiliary-drive three-in-one assembly, board-to-board low-voltage connectors and wiring harnesses are reduced, the installation space is greatly saved, the cost is reduced, and the overall integration level is improved.

Description

Technical Field

[0001] This utility model belongs to the field of automotive parts technology, and in particular relates to a novel SIC integrated motor controller. Background Technology

[0002] As one of the core components of the "three major electric systems" of new energy vehicles, traditional motor controllers can accurately control and manage the working status of the drive motors of new energy vehicles. With the continuous increase in the demand for new energy vehicles, motor controllers are also gradually developing towards high integration.

[0003] Current motor controllers mainly adopt a physically integrated design, that is, thin film capacitors and power modules (such as IGBT modules, SiC modules and IGBT single-tube modules) are laid out flat, the drive board and control board are arranged in two layers, and the DC-DC power module is arranged in an independent package. This cannot effectively utilize the internal space of the motor controller, cannot achieve deep board-level integration, and affects the overall integration level. Summary of the Invention

[0004] To address the aforementioned problems, this invention provides a novel SIC integrated motor controller, which improves the integration level of the motor controller and reduces costs.

[0005] The technical solution adopted by this utility model is as follows: a novel SIC integrated motor controller, including a housing assembly, an upper cover plate, a high-voltage wiring cover plate, and a lower cover plate. The upper cover plate is installed above the housing assembly, the high-voltage wiring cover plate is installed on the side of the housing assembly, and the lower cover plate is installed below the housing assembly. Inside the housing assembly are installed a drive and control integrated board assembly, a high-voltage board, a PDU assembly, a filter, a DC terminal block, a three-phase AC terminal block, a thin-film capacitor assembly, and an auxiliary drive three-in-one assembly. The housing assembly is divided into upper and lower layers by a central partition. The drive and control integrated board assembly, the high-voltage board, the PDU assembly, the filter, the DC terminal block, the three-phase AC terminal block, and the thin-film capacitor assembly are installed on the upper layer, and the auxiliary drive three-in-one assembly is installed on the lower layer.

[0006] Furthermore, the integrated drive and control board assembly integrates the main drive motor power module and the control loop module, and the main drive motor power module and the control loop module share the same main control chip.

[0007] Furthermore, the thin-film capacitor assembly includes a liquid cooling plate, a thin-film capacitor module, a SiC power module, an aluminum alloy clamping block, and an IGBT single-tube module. The thin-film capacitor module is fixed to the bottom of the liquid cooling plate with screws, the SiC power module is fixed to the top of the liquid cooling plate with the aluminum alloy clamping block and screws, and the IGBT single-tube module is fixed to the side of the liquid cooling plate with a plastic clamping block, so that the thin-film capacitor module, the SiC power module, and the IGBT single-tube module share the same liquid cooling channel.

[0008] Furthermore, the SiC power module and the IGBT single-tube module are soldered to the integrated drive and control board assembly via pins.

[0009] Furthermore, the auxiliary drive three-in-one component integrates a steering motor control module, an air conditioning compressor motor control module, and a DC-DC power supply module, and the steering motor control module, the air conditioning compressor motor control module, and the DC-DC power supply module share the same main control chip.

[0010] Furthermore, the DC terminal block and the three-phase AC terminal block are arranged side by side between the thin-film capacitor assembly and the high-voltage terminal cover.

[0011] The beneficial effects of this invention are as follows: By integrating the thin-film capacitor assembly, the integrated drive and control board assembly, and the auxiliary drive three-in-one assembly, the number of board-to-board low-voltage connectors and wiring harnesses is reduced, significantly saving installation space, lowering costs, and improving overall integration. Specifically, integrating the thin-film capacitor module, SiC power module, and IGBT single-tube module into a thin-film capacitor assembly enables simultaneous cooling of all three components, improving overall heat dissipation performance. Integrating the drive board and control board into a single integrated drive and control board assembly, sharing a single main control chip, achieves deep board-level integration. Furthermore, integrating the steering motor control module, air conditioning compressor motor control module, and DC-DC power supply module into a single auxiliary drive three-in-one assembly significantly reduces space and cost, further enhancing overall integration. Attached Figure Description

[0012] Figure 1 This is a simplified schematic diagram of the three-dimensional structure of this utility model;

[0013] Figure 2 This is a schematic diagram of the exploded structure of this utility model;

[0014] Figure 3 This is a schematic diagram of the exploded structure of the thin-film capacitor assembly of this utility model;

[0015] In the diagram: 1-Box assembly, 2-Upper cover plate, 3-High voltage wiring cover plate, 4-Lower cover plate, 5-Drive and control integrated board assembly, 6-High voltage board, 7-PDU assembly, 8-Filter, 9-DC terminal block, 10-Three-phase AC terminal block, 11-Film capacitor assembly, 12-Auxiliary drive three-in-one assembly, 13-Liquid cooling plate, 14-Film capacitor module, 15-SiC power module, 16-Aluminum alloy pressure block, 17-IGBT single tube module, 18-Plastic pressure block. Detailed Implementation

[0016] The present invention will be further described below with reference to the accompanying drawings.

[0017] like Figure 1As shown, this utility model is a novel SIC integrated motor controller, including a housing assembly 1, an upper cover plate 2 installed above the housing assembly 1, a high-voltage wiring cover plate 3 installed on the side of the housing assembly 1, and a lower cover plate 4 installed below the housing assembly 1.

[0018] like Figure 2 As shown, the interior of the enclosure assembly 1 is divided into upper and lower layers by a middle partition. The integrated drive and control board assembly 5, high-voltage board 6, PDU assembly 7, filter 8, DC terminal block 9, three-phase AC terminal block 10, film capacitor assembly 11, and auxiliary drive three-in-one assembly 12 are installed inside the enclosure assembly 1. The integrated drive and control board assembly 5, high-voltage board 6, PDU assembly 7, filter 8, DC terminal block 9, three-phase AC terminal block 10, and film capacitor assembly 11 are installed on the upper layer of the enclosure assembly 1 with screws. The DC terminal block 9 and three-phase AC terminal block 10 are arranged side-by-side between the film capacitor assembly 11 and the high-voltage wiring cover plate 3. The auxiliary drive three-in-one assembly 12 is installed on the lower layer of the enclosure assembly 1 with screws. The integrated drive and control board assembly 5 in this invention integrates the main drive motor power module and the control circuit module, which share the same main control chip. The auxiliary drive three-in-one component 12 integrates the steering motor control module, the air conditioning compressor motor control module, and the DC-DC power supply module. The steering motor control module, the air conditioning compressor motor control module, and the DC-DC power supply module share the same main control chip.

[0019] like Figure 3 As shown, the thin-film capacitor assembly 11 of this utility model includes a liquid cooling plate 13, a thin-film capacitor module 14, a SiC power module 15, an aluminum alloy clamping block 16, and an IGBT single-tube module 17. The thin-film capacitor module 14 is fixed to the bottom of the liquid cooling plate 13 with screws. The SiC power module 15 is fixed to the top of the liquid cooling plate 13 with the aluminum alloy clamping block 16 and screws. The IGBT single-tube module 17 is fixed to the side of the liquid cooling plate 13 with a plastic clamping block 18. This allows the thin-film capacitor module 14, the SiC power module 15, and the IGBT single-tube module 17 to share the same liquid cooling channel, ensuring synchronous cooling and heat dissipation. The pins of the SiC power module 15 and the IGBT single-tube module 17 are soldered and fixed to the integrated drive and control board assembly 5.

[0020] This utility model integrates the thin-film capacitor assembly 11, the drive and control integrated board assembly 5, and the auxiliary drive three-in-one assembly 12 through board-level integrated design, which reduces the number of board-to-board low-voltage connectors and wiring harnesses, greatly saves installation space, reduces costs, and improves overall integration. It features a compact structure, small size, and high integration.

[0021] In the description of the above embodiments, specific features, structures, materials or characteristics may be combined in any suitable manner in one or more embodiments or examples.

[0022] The above description is merely a specific embodiment of this utility model, but the protection scope of this utility model is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this utility model should be included within the protection scope of this utility model. Therefore, the protection scope of this utility model should be determined by the protection scope of the claims.

Claims

1. A novel SIC integrated motor controller, comprising a housing assembly, an upper cover plate, a high-voltage wiring cover plate, and a lower cover plate, wherein the upper cover plate is mounted on top of the housing assembly, the high-voltage wiring cover plate is mounted on the side of the housing assembly, and the lower cover plate is mounted below the housing assembly; characterized in that: The enclosure assembly houses a drive and control integrated board assembly, a high-voltage board, a PDU assembly, a filter, a DC terminal block, a three-phase AC terminal block, a film capacitor assembly, and an auxiliary drive three-in-one assembly. The enclosure assembly is divided into upper and lower layers by a central partition. The drive and control integrated board assembly, the high-voltage board, the PDU assembly, the filter, the DC terminal block, the three-phase AC terminal block, and the film capacitor assembly are installed on the upper layer, while the auxiliary drive three-in-one assembly is installed on the lower layer.

2. The novel SiC integrated motor controller according to claim 1, characterized in that: The integrated drive and control board assembly integrates the main drive motor power module and the control loop module, and the main drive motor power module and the control loop module share the same main control chip.

3. The novel SiC integrated motor controller according to claim 1, characterized in that: The thin-film capacitor assembly includes a liquid cooling plate, a thin-film capacitor module, a SiC power module, an aluminum alloy clamping block, and an IGBT single-tube module. The thin-film capacitor module is fixed to the bottom of the liquid cooling plate with screws, the SiC power module is fixed to the top of the liquid cooling plate with the aluminum alloy clamping block and screws, and the IGBT single-tube module is fixed to the side of the liquid cooling plate with a plastic clamping block, so that the thin-film capacitor module, SiC power module, and IGBT single-tube module share the same liquid cooling channel.

4. A novel SiC integrated motor controller according to claim 3, characterized in that: The SiC power module and the IGBT single-tube module are soldered to the integrated drive and control board assembly via pins.

5. A novel SiC integrated motor controller according to claim 1, characterized in that: The auxiliary drive three-in-one component integrates a steering motor control module, an air conditioning compressor motor control module, and a DC-DC power supply module. The steering motor control module, the air conditioning compressor motor control module, and the DC-DC power supply module share the same main control chip.

6. A novel SiC integrated motor controller according to claim 1, characterized in that: The DC terminal block and the three-phase AC terminal block are arranged side by side between the thin-film capacitor assembly and the high-voltage terminal cover.

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