All-in-one power supply device, all-in-one power assembly and electric vehicle

Abstract

The invention provides an all-in-one power supply device, an all-in-one power assembly and an electric vehicle, the power supply device is used for charging and discharging a battery and driving a motor, and the power supply device comprises an integrated groove type shell, an upper layer circuit board and a lower layer circuit board. Wherein the lower-layer circuit board comprises a main area and a secondary area, the main area and the secondary area are adjacently arranged in the first direction, the integrated groove type shell comprises a bottom plate, the bottom plate, the secondary area of the lower-layer circuit board and the upper-layer circuit board are sequentially stacked in the third direction, and the main area and the upper-layer circuit board are arranged in the third direction. The main area is used for bearing a bus capacitor and a power module of the motor controller and a plurality of chips of the vehicle control unit, and the secondary area is used for bearing at least part of power switch tubes of the direct-current converter. The upper circuit board is used for bearing a plurality of power switch tubes, a plurality of inductors and a plurality of capacitors of the vehicle-mounted charger. The upper layer circuit board and the lower layer circuit board are arranged in a tiled and stacked mode, the integration level is improved, the power supply device is arranged in a miniaturized mode, and installation can be simplified.

Description

Technical Field

[0001] The present application relates to the technical field of electric vehicles, and in particular to an all-in-one power supply device, an all-in-one power assembly and an electric vehicle. Background Art

[0002] Existing electric vehicles typically use a powertrain as their power source. Currently, the powertrain includes multiple components, such as the motor, reducer, motor controller, and heat exchanger. To achieve diversified powertrain functionality, an increasing number of functional modules are being integrated into the motor controller. However, this increased functionality results in larger motor controllers, complex internal wiring, difficult installation, and low integration. The challenge of miniaturizing the motor controller while maintaining a high level of integration through the layout of functional modules remains a major challenge in achieving powertrain miniaturization. Summary of the Invention

[0003] The present application provides an all-in-one power supply device, an all-in-one powertrain, and an electric vehicle.

[0004] In the first aspect, an embodiment of the present application provides an all-in-one power supply device, which is used to charge and discharge the battery and to drive the motor. The power supply device includes an integrated slotted shell, an upper circuit board and a lower circuit board. The lower circuit board includes a main area and a secondary area, and the main area and the secondary area are arranged adjacent to each other along a first direction. The integrated slotted shell includes a bottom plate, and the bottom plate, the secondary area of the lower circuit board, and the upper circuit board are stacked in sequence along a third direction. The main area is used to carry the bus capacitors and power modules of the motor controller and multiple chips of the vehicle controller, and the secondary area is used to carry at least part of the power switch tubes of the DC converter. The upper circuit board is used to carry multiple power switch tubes, multiple inductors and multiple capacitors of the on-board charger.

[0005] In the embodiments of the present application, both the upper and lower circuit boards are fixed to and supported by the integrated trough shell. This ensures a high degree of stability in the fixing of the upper and lower circuit boards to the integrated trough shell, enhancing the overall structural strength of the power supply device and ensuring a more stable electrical connection. When external forces are applied to the power supply device, the upper and lower circuit boards and the integrated trough shell are unlikely to easily shift relative to each other, facilitating stable operation of the power supply device.

[0006] In an embodiment of the present application, the lower circuit board includes a main area and a secondary area, and the main area and the secondary area are arranged adjacent to each other along a first direction, so as to facilitate the arrangement and layout of electrical components of the lower circuit board along the first direction.

[0007] In the embodiments of the present application, the base plate, the secondary region of the lower circuit board, and the upper circuit board are stacked sequentially along the third direction, allowing the electrical components of the power supply device to be stacked along the third direction, thereby reducing the space occupied by the power supply device in the first and second directions. The primary region and the upper circuit board are spaced apart along the third direction, which reduces the space occupied by the upper and lower circuit boards in the first direction of the power supply device when laid flat. This allows for the integrated arrangement of the motor controller, vehicle controller, DC converter, and onboard charger within a smaller space, facilitating the miniaturization of the power supply device.

[0008] In an embodiment of the present application, the motor controller, vehicle controller and DC converter are all arranged on the lower circuit board. Compared with using multiple circuit boards, the integration of the power supply device can be improved, the number of shells used can be reduced, and production efficiency can be improved.

[0009] In the embodiment of the present application, the upper circuit board is used to carry multiple power switches, multiple inductors, and multiple capacitors of the on-board charger, so that the on-board charger is integrated into the upper circuit board. The on-board charger can convert AC power input from an external power source into DC power for charging the battery.

[0010] In one embodiment, the integrated trough housing further includes a first sidewall, a second sidewall, and a first shielding wall. The upper surface of the base plate along the third direction is used to secure the first sidewall, the second sidewall, and the first shielding wall. The first sidewall, the first shielding wall, and the second sidewall are sequentially spaced apart along the first direction. The space between the first sidewall and the first shielding wall accommodates the primary region. The space between the first shielding wall and the second sidewall accommodates the upper circuit board. The secondary region protrudes from the first shielding wall toward the second sidewall along the first direction.

[0011] In the embodiment of the present application, the first sidewall, the second sidewall, and the first shielding wall are fixed to the upper surface of the bottom plate of the integrated trough housing, and can be used to support and secure the upper and lower circuit boards, thereby improving the stability of the power supply device. The first sidewall, the first shielding wall, and the second sidewall are sequentially spaced apart along a first direction, so that the first shielding wall can isolate the electrical components of the power supply device along the first direction, thereby achieving electrical shielding for the electrical components of the power supply device.

[0012] In an embodiment of the present application, the space between the first side wall and the first shielding wall is used to accommodate the main area. The first side wall and the first shielding wall constitute the installation area of the motor controller and the vehicle controller. The first shielding wall can reduce the electrical interference of the electrical components carried by the upper circuit board to the bus capacitors, power modules and multiple chips of the motor controller in the main area, thereby improving the electromagnetic compatibility of the power supply device.

[0013] In an embodiment of the present application, the space between the first shielding wall and the second side wall is used to accommodate the upper circuit board. The first shielding wall and the second side wall constitute the installation area of the vehicle charger. The first shielding wall can reduce the electrical interference of the motor controller and the vehicle controller of the lower circuit board to the electrical components carried by the upper circuit board, thereby improving the electromagnetic compatibility of the power supply device.

[0014] In an embodiment of the present application, the sub-region protrudes from the first shielding wall toward the second side wall along the first direction, which is conducive to the sub-region being arranged below the upper circuit board along the third direction, thereby improving the space utilization of the power supply device and reducing the space occupied by the power supply device along the first direction.

[0015] In one embodiment, along the first direction, the main area, the secondary area, and the second side wall are arranged in sequence, the secondary area is spaced apart from the second side wall, and the space between the secondary area and the second side wall is used to accommodate multiple inductors of the vehicle charger.

[0016] In an embodiment of the present application, the main area, the secondary area, and the second side wall are arranged in sequence along the first direction, and the secondary area is spaced apart from the second side wall, providing space for the installation and arrangement of multiple inductors of the vehicle charger in the power supply device.

[0017] In the embodiment of the present application, the space between the secondary area and the second side wall is used to accommodate multiple inductors of the vehicle charger, which is conducive to fully utilizing the space in the accommodating cavity of the power supply device, improving space utilization, and thereby improving the integration of the power supply device.

[0018] In one embodiment, the lower surface of the upper circuit board is used to support multiple capacitors in the vehicle charger and multiple magnetic components of the AC filter. The integrated slotted housing also includes a third shielding wall, and the upper surface of the bottom plate along the third direction is used to fix the third shielding wall. The secondary region, the third shielding wall, and the second side wall are sequentially spaced along the first direction. The space between the secondary region and the third shielding wall is used to accommodate multiple capacitors in the vehicle charger. The space between the third shielding wall and the second side wall is used to accommodate multiple magnetic components in the AC filter.

[0019] In an embodiment of the present application, multiple capacitors in the onboard charger and multiple magnetic components of the AC filter are fixed to the bottom plate of the integrated trough-shaped housing. The space between the upper circuit board and the bottom plate is used to accommodate the multiple capacitors in the onboard charger and the multiple magnetic components of the AC filter. A third shielding wall is fixed to the upper surface of the bottom plate of the integrated trough-shaped housing. The third shielding wall can be used to support the upper circuit board, which helps to improve the fixing strength between the upper circuit board and the integrated trough-shaped housing.

[0020] In an embodiment of the present application, the secondary region, the third shielding wall, and the second sidewall are sequentially spaced apart along a first direction, such that the third shielding wall can isolate the electrical components of the power supply device along the first direction, thereby achieving electrical shielding for the electrical components of the power supply device. The third shielding wall can reduce electrical interference from the secondary region along the first direction on multiple magnetic components in the AC filter between the third shielding wall and the second sidewall, and can also reduce electrical interference from the electrical components between the third shielding wall and the second sidewall on the DC converter in the secondary region, thereby improving the electromagnetic compatibility of the power supply device.

[0021] The third shielding wall is spaced apart from the second side wall, which is beneficial for providing installation space for multiple magnetic components in the AC filter.

[0022] In the embodiment of the present application, the space between the secondary area and the third shielding wall is used to accommodate multiple capacitors in the vehicle charger, which is conducive to fully utilizing the space on the lower surface of the upper circuit board and improving the integration of the power supply device.

[0023] In the embodiment of the present application, the space between the third shielding wall and the second side wall is used to accommodate multiple magnetic components in the AC filter, and the AC filter includes an AC filter, which is used to filter out harmonics in the AC power.

[0024] In one embodiment, the lower surface of the upper circuit board is used to support multiple inductors and multiple magnetic components of the DC filter in the vehicle charger. The integrated slotted housing also includes a fourth shielding wall, and the upper surface of the bottom plate along the third direction is used to secure the fourth shielding wall. The first shielding wall, the fourth shielding wall, and the second side wall are sequentially spaced apart along the first direction. The space between the fourth shielding wall and the first shielding wall is used to accommodate the multiple magnetic components of the DC filter. The space between the fourth shielding wall and the second side wall is used to accommodate the multiple inductors of the vehicle charger.

[0025] In this embodiment of the present application, multiple inductors and multiple magnetic components of the DC filter in the onboard charger are arranged along the second direction. The DC filter includes a high-voltage DC filter for filtering harmonics in the high-voltage DC power. The fourth shielding wall supports the upper circuit board, enhancing the mounting stability of the upper circuit board and the integrated slotted housing, thereby improving the electrical connection stability of the power supply device and ensuring smooth operation.

[0026] In an embodiment of the present application, the first shielding wall, the fourth shielding wall and the second side wall are arranged in sequence along the first direction, which divides the circuit in the power supply device into more detailed partitions, which is conducive to reducing electrical interference between modules on the power supply device, improving the electromagnetic compatibility of the power supply device, and ensuring the normal operation of the power supply device.

[0027] In the embodiment of the present application, space is provided between the first and fourth shielding walls for mounting multiple magnetic components of the DC filter, and space is provided between the fourth shielding wall and the second side wall for mounting multiple inductors of the onboard charger. The fourth shielding wall helps reduce electrical interference from the multiple magnetic components of the DC filter on the multiple inductors of the onboard charger, and also helps reduce interference from the multiple inductors of the onboard charger on the multiple magnetic components of the DC filter, thereby facilitating the smooth operation of the power supply device.

[0028] In one embodiment, the integrated trough housing further includes a fifth shielding wall, which is secured to the upper surface of the baseplate along the third direction. The fifth shielding wall is spaced apart from the secondary region along the second direction. The space between the fifth shielding wall and the secondary region is used to accommodate multiple magnetic components of the DC converter. The area enclosed by the fifth, fourth, and first shielding walls is used to accommodate multiple magnetic components of the DC filter.

[0029] In the embodiment of the present application, the fifth shielding wall is used to support the upper circuit board, which is beneficial to enhancing the installation stability of the upper circuit board and the integrated groove shell, and is beneficial to improving the electrical connection stability of the power supply device, so that the power supply device can operate smoothly.

[0030] In the embodiment of the present application, the fifth shielding wall is spaced apart from the secondary region along the second direction, facilitating the provision of mounting space for the multiple magnetic components of the DC converter. The space between the fifth shielding wall and the secondary region is used to accommodate the multiple magnetic components of the DC converter, facilitating the conversion of high-voltage current into low-voltage DC power after passing through the multiple magnetic components of the DC filter. This low-voltage DC power can then be converted back into a lower voltage current for transmission to the low-voltage load.

[0031] In an embodiment of the present application, multiple magnetic components of the DC filter are accommodated in an area enclosed by the fifth shielding wall, the fourth shielding wall, and the first shielding wall, which is beneficial to reducing the electrical interference of the motor controller circuit in the main area of the lower circuit board, the DC converter and the transformer of the upper circuit board to the DC filter, so that the DC filter can operate normally and the electromagnetic compatibility of the power supply device is improved.

[0032] In one embodiment, the integrated trough housing further includes a sixth shielding wall, the upper surface of the base plate along the third direction being used to secure the sixth shielding wall, the sixth shielding wall extending along the first direction. The fourth shielding wall, the sixth shielding wall, and the second side wall are sequentially arranged along the first direction. The secondary region, the fifth shielding wall, and the sixth shielding wall are sequentially arranged along the second direction. The sixth shielding wall is used to separate the space between the fourth shielding wall and the second side wall into two regions arranged along the second direction. The region closer to the secondary region is used to accommodate multiple inductors of the onboard charger, and the other region is used to accommodate the onboard charger's transformer and compressor power supply connector.

[0033] In an embodiment of the present application, the upper surface of the base plate along the third direction is used to fix the sixth shielding wall, and the sixth shielding wall extends along the third direction. The sixth shielding wall can be used to support the upper circuit board, which is beneficial to enhancing the installation stability of the upper circuit board and the integrated groove shell, and is beneficial to improving the electrical connection stability of the power supply device, so that the power supply device can operate smoothly.

[0034] In an embodiment of the present application, the fourth shielding wall, the sixth shielding wall and the second side wall are arranged in sequence along the first direction. The fourth shielding wall can electrically shield the DC filter from the transformer and the multiple inductors of the on-board charger. The sixth shielding wall is arranged between the fourth shielding wall and the second side wall, and the length direction of the sixth shielding wall is parallel to the first direction. The transformer and the multiple inductors of the on-board charger arranged along the second direction can be electrically shielded, which is beneficial to reducing the electrical interference between the DC filter, the transformer and the multiple inductors of the on-board charger, so that these modules can operate more smoothly.

[0035] In an embodiment of the present application, the sub-region, the fifth shielding wall and the sixth shielding wall are arranged in sequence along the second direction. Along the second direction, the sub-region and the fifth shielding wall are spaced apart to provide an installation area for the DC converter, and the fifth shielding wall and the sixth shielding wall are spaced apart to provide more installation space for the multiple capacitors of the vehicle charger and the multiple magnetic components in the AC filter between the sixth shielding wall.

[0036] In an embodiment of the present application, the sixth shielding wall is used to separate the space between the fourth shielding wall and the second side wall into two areas arranged along the second direction, which is conducive to electrically shielding the multiple inductors and transformer of the vehicle charger. Among the two areas, one area closer to the secondary area is used to accommodate the multiple inductors of the vehicle charger, and the other area is used to accommodate the transformer and compressor power supply connector of the vehicle charger. That is, the sixth shielding wall can reduce the electrical interference of the multiple inductors of the vehicle charger to the transformer and compressor power supply connector of the vehicle charger, and can also reduce the electrical interference of the transformer and compressor power supply connector of the vehicle charger to the multiple inductors of the vehicle charger, thereby improving the electromagnetic compatibility of the power supply device and ensuring the smooth operation of the power supply device.

[0037] In one embodiment, the power supply device further includes a first shielding cover configured to shield at least a portion of the plurality of chips in the vehicle controller. The base plate, the lower circuit board, and the first shielding cover are stacked sequentially along the third direction. Along the first direction, the first sidewall is adjacent to the first shielding cover.

[0038] In this embodiment of the present application, the first shielding cover is fixedly connected to at least some of the multiple chips in the vehicle controller, thereby enhancing the stability of the vehicle controller within the power supply device. The first shielding cover can shield the motor controller on the underlying circuit board from electrical interference with the vehicle controller, improving the electromagnetic compatibility of the power supply device and ensuring smooth communication with the vehicle controller.

[0039] In an embodiment of the present application, the base plate, the lower circuit board and the first shielding cover are stacked in sequence along the third direction, so that at least multiple chips of the vehicle controller are in contact with the lower circuit board, which is beneficial for the control signal of the vehicle controller to be transmitted from the communication connector installed at the communication connector mounting hole to the chip of the vehicle controller, and then transmitted to the lower circuit board to control the power supply device.

[0040] In an embodiment of the present application, the first side wall and the first shielding cover are arranged adjacent to each other along the first direction, which is conducive to setting the communication connector mounting hole close to the first side wall, thereby facilitating electrical connection between the communication connector and the load on the vehicle.

[0041] In one embodiment, the secondary region is also used to carry multiple magnetic components of the low-voltage filter, and the space between the secondary region and the upper circuit board is used to accommodate the multiple magnetic components of the low-voltage filter.

[0042] In an embodiment of the present application, the secondary region not only carries at least part of the power switching tubes of the DC converter, but also carries multiple magnetic devices of the low-voltage filter, which is conducive to integrating the DC converter and the low-voltage filter on the lower circuit board, so that the bus capacitor and power module of the vehicle controller, multiple chips of the vehicle controller, the DC converter, and the low-voltage filter share a lower circuit board, which is conducive to reducing the number of circuit boards used and improving the integration of the power supply device.

[0043] In an embodiment of the present application, the space between the secondary region and the upper circuit board is used to accommodate multiple magnetic components of the low-voltage filter, which is beneficial to improving the space utilization inside the power supply device and enhancing the integration between the modules in the power supply device.

[0044] In one embodiment, the integrated trough housing further includes a third sidewall, a second shielding wall, and a fourth sidewall. The upper surface of the bottom plate along the third direction is used to secure the third sidewall, the second shielding wall, and the fourth sidewall. The third sidewall, the second shielding wall, and the fourth sidewall are sequentially spaced apart along the second direction. The space between the third sidewall and the second shielding wall is used to accommodate a portion of the copper busbars of the power distribution device. The space between the second shielding wall and the fourth sidewall is used to accommodate the main area.

[0045] In the embodiment of the present application, the first side wall, the second side wall, the third side wall, the fourth side wall, the bottom plate and the cover plate together enclose a receiving cavity of the integrated trough shell, and the receiving cavity is used to receive the upper circuit board and the lower circuit board.

[0046] In the embodiment of the present application, the second shielding wall is fixed to the upper surface of the base plate along the third direction. The second shielding wall has a supporting effect on the power supply device, which is beneficial to improving the installation stability of the power supply device and ensuring the smooth operation of the power supply device.

[0047] In an embodiment of the present application, the power distribution device converts the high-voltage direct current output by the battery into the direct current voltage or alternating current required by the load during operation. Along the second direction, the third side wall, the second shielding wall, and the fourth side wall are arranged in sequence, and the area between the third side wall and the second shielding wall provides an installation area for part of the copper busbar of the power distribution device, and the area between the second shielding wall and the fourth side wall provides an installation area for the main area of the lower circuit board. The second shielding wall electrically shields part of the copper busbar of the power distribution device in the power supply device from the bus capacitor and power module of the motor controller in the main area along the second direction, which is beneficial to reduce the electrical interference of part of the copper busbar of the power distribution device, the bus capacitor of the motor controller, and the power module during operation, and improves the electromagnetic compatibility of the power supply device.

[0048] In one embodiment, along the first direction, the length of the secondary region is shorter than the length of the primary region. Along the second direction, the length of the secondary region is shorter than the length of the primary region. Along the second direction, sides of the primary region and the secondary region facing away from the third side wall are arranged adjacent to the fourth side wall.

[0049] In the embodiment of the present application, the smaller length of the secondary region along the first direction facilitates its arrangement below the upper circuit board along the third direction without excessively occupying space in the power supply device along the first direction. The smaller secondary region along the first direction provides sufficient space for mounting multiple magnetic components in the AC filter between the secondary region and the second sidewall.

[0050] In an embodiment of the present application, the smaller sub-area along the second direction provides sufficient installation space for multiple magnetic devices in the DC filter, multiple power switching tubes and multiple inductors of the on-board charger, some power switching tubes of the DC converter, the transformer of the on-board charger, and the compressor power supply connector.

[0051] In the embodiment of the present application, the sides of the main area and the secondary area along the second direction away from the third side wall are arranged adjacent to the fourth side wall, which is beneficial for faster transmission of the current of the lower circuit board to the three-phase connector mounting hole near the fourth side wall, thereby transmitting the current in the power supply device to the winding of the motor, driving the rotor and motor shaft of the motor to rotate, and is also beneficial for faster transmission of the circuit on the lower circuit board to the low-voltage load connector mounting hole near the fourth side wall to supply power to the low-voltage load, and is also beneficial for saving lower circuit board materials and reducing production costs.

[0052] In one embodiment, the upper circuit board includes a notch, the notch including an opening along the second direction toward the third side wall and an opening along the first direction toward the main area. The space between the opening side of the notch and the third side wall is used to accommodate a portion of the copper busbar of the DC power supply connector and the power distribution device.

[0053] In an embodiment of the present application, the notch in the upper circuit board provides installation space for the DC power connector at the DC power connector mounting hole on the integrated trough housing. The notch includes an opening along the second direction toward the third side wall and an opening along the first direction toward the main area. The third side wall and the opening along the second direction toward the third side wall provide sufficient installation space for the DC power connector in the second direction. The opening in the first direction toward the main area and a portion of the copper busbars of the power distribution device provide sufficient installation space for the DC power connector in the first direction.

[0054] In the embodiment of the present application, the space between the side edge of the notch and the third side wall is used to accommodate the DC power connector and a portion of the copper busbar of the power distribution device, which facilitates the DC power connector to be installed more closely to the DC power connector mounting hole that extends through the third side wall along the second direction. Furthermore, the portion of the copper busbar of the power distribution device facilitates connecting the DC power connector and the battery connector with less material, which facilitates the DC power connector to more quickly transmit the high-voltage current from the external power source to the battery for charging.

[0055] In a second aspect, an embodiment of the present application provides an all-in-one powertrain, which includes a motor, a reducer and a power supply device as described above. The power supply device is connected to the winding of the motor through a motor controller to drive the motor, and the motor shaft of the motor is transmission-connected to the input shaft of the reducer.

[0056] In an embodiment of the present application, the power supply device is used to charge and discharge the battery and to drive the motor. The power supply device is used to receive the direct current transmitted by the battery and convert the direct current into alternating current and transmit it to the motor. The power supply device is connected to the winding of the motor through the motor controller to drive the motor. The motor shaft of the motor is connected to the input shaft of the reducer to drive the reducer to work. The upper circuit board and the lower circuit board of the power supply device integrate multiple circuits, which is conducive to reducing the number of circuit boards used and realizing the deep integration of the power supply device. In addition, the main areas of the upper circuit board and the lower circuit board of the power supply device are arranged flatly, and the secondary areas of the upper circuit board and the lower circuit board are stacked, which is conducive to reducing the space occupied by the power supply device along the third direction and the first direction, realizing the miniaturized arrangement of the power supply device, and then realizing the miniaturized arrangement of the power assembly.

[0057] In one embodiment, the powertrain further includes an integrated housing, a motor end cover, and a reducer end cover. The motor end cover, the integrated housing, and the reducer end cover are arranged adjacent to each other in the second direction. The integrated trough housing is stacked on the integrated housing in the third direction. The integrated housing is used to accommodate the motor rotor and stator of the motor and the parallel gear set of the reducer. The motor end cover is aligned on the same side as the fourth side wall of the integrated trough housing. The reducer end cover is aligned on the same side as the third side wall of the integrated trough housing.

[0058] In an embodiment of the present application, the integrated housing includes a reducer housing chamber and a motor housing chamber. The reducer housing chamber is used to accommodate the parallel gear set of the reducer, while the motor housing chamber is used to accommodate the motor rotor and stator of the motor. The motor end cover is used to cover the motor housing chamber, and the reducer end cover is used to cover the reducer housing chamber. The motor end cover, the integrated housing, and the reducer end cover are arranged adjacent to each other along the second direction, which helps reduce the space occupied by the powertrain along the first direction, facilitates the miniaturization of the powertrain, and thus optimizes the overall vehicle layout.

[0059] In the embodiment of the present application, the integrated groove shell is stacked on the integrated shell along the third direction, which is beneficial to reducing the space occupied by the powertrain in the first and second directions, is beneficial to the integrated layout of the power supply device, reducer and motor, is beneficial to improving the integration of the powertrain, and is beneficial to optimizing the performance of the entire vehicle.

[0060] In an embodiment of the present application, the motor end cover is arranged on the same side as the fourth side wall of the integrated groove-shaped shell, which is beneficial for the motor controller near the fourth side wall to transmit AC power to the motor windings, driving the motor rotor and motor shaft to rotate. It is also beneficial for the low-voltage filter near the fourth side wall to transmit low-voltage current to the low-voltage load of the entire vehicle in a shorter path for operation, which is beneficial to reducing power loss. The reducer end cover is arranged on the same side as the third side wall of the integrated groove-shaped shell. The third side wall is provided with battery charging and discharging connector mounting holes, DC power supply connector mounting holes, and power supply connector mounting holes. This facilitates the battery charging and discharging connector, DC power supply connector, and compressor connector near the third side wall to be arranged above the reducer, and facilitates the dispersed arrangement of the motor controller and low-voltage filter arranged above the motor, making the arrangement of the components in the power supply device more regular.

[0061] In a third aspect, an embodiment of the present application provides an electric vehicle, which includes a frame, a power battery, and a power assembly as described above. The frame is used to fix the power battery and the power assembly, and the power battery is used to be connected through a power supply device.

[0062] In an embodiment of the present application, the power supply device is used to charge and discharge the power battery and to drive the motor of the powertrain. The main areas of the upper circuit board and the lower circuit board of the power supply device of the powertrain are arranged flatly, and the secondary areas of the upper circuit board and the lower circuit board are arranged in a stacked manner, which is beneficial to reducing the space occupied by the power supply device along the third direction and the first direction, realizing the miniaturized layout of the power supply device, and then realizing the miniaturized layout of the powertrain, thereby improving the layout of the entire vehicle. BRIEF DESCRIPTION OF THE DRAWINGS

[0063] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for use in the embodiments of the present application will be described below.

[0064] Figure 1 A schematic diagram of the structure of an electric vehicle provided in an embodiment of the present application;

[0065] Figure 2A A schematic diagram of the structure of the powertrain provided in an embodiment of the present application;

[0066] Figure 2B Another structural schematic diagram of the powertrain provided in an embodiment of the present application;

[0067] Figure 2C Another structural schematic diagram of the powertrain provided in an embodiment of the present application;

[0068] Figure 3 An exploded schematic diagram of a powertrain provided in an embodiment of the present application;

[0069] Figure 4 A schematic diagram of the structure of a power supply device provided in an embodiment of the present application;

[0070] Figure 5 An exploded diagram of a power supply device provided in an embodiment of the present application;

[0071] Figure 6 Another schematic diagram of the structure of the power supply device provided in an embodiment of the present application;

[0072] Figure 7 Another exploded view of the power supply device provided in an embodiment of the present application;

[0073] Figure 8 Another exploded view of the power supply device provided in an embodiment of the present application;

[0074] Figure 9 Another exploded view of the power supply device provided in an embodiment of the present application;

[0075] Figure 10 Another schematic diagram of the structure of the power supply device provided in an embodiment of the present application;

[0076] Figure 11A schematic structural diagram of an integrated channel shell provided in an embodiment of the present application;

[0077] Figure 12 Another structural schematic diagram of the integrated channel shell provided in an embodiment of the present application;

[0078] Figure 13 A bottom view of the integrated channel shell provided in an embodiment of the present application;

[0079] Figure 14 for Figure 13 AA cross-section of

[0080] Figure 15 A schematic diagram of the partial structure of the integrated channel shell provided in an embodiment of the present application;

[0081] Figure 16 A schematic structural diagram of the first flow channel and the second flow channel provided in an embodiment of the present application. DETAILED DESCRIPTION

[0082] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.

[0083] For ease of understanding, the English abbreviations and related technical terms involved in the embodiments of this application are explained and described below.

[0084] NVH: It is the abbreviation of Noise, Vibration and Harshness, which refers to noise, vibration and harshness.

[0085] DCDC: DC stands for Direct Current. DCDC refers to a device that converts DC power of one voltage level to DC power of another voltage level. DCDCs are categorized as step-up or step-down power supplies based on the voltage level conversion relationship. For example, the DCDC converter in a vehicle's power supply system converts high-voltage DC power to low-voltage DC power.

[0086] Parallel: This term is understood to mean essentially parallel, not limited to absolute parallelism or a 180-degree angle. Even angles less than or greater than 180 degrees due to factors such as assembly tolerances, design tolerances, and process tolerances are considered essentially parallel.

[0087] Perpendicular: This term is understood to mean essentially perpendicular, not limited to an absolute perpendicular intersection or a 90-degree angle. Angles less than or greater than 90 degrees due to factors such as assembly tolerances, design tolerances, and process tolerances also fall within the definition of essentially perpendicular.

[0088] First direction, second direction, third direction: the first direction is perpendicular to the second direction and the third direction, the second direction is perpendicular to the first direction and the third direction, the third direction is perpendicular to the first direction and the second direction, and the second direction is parallel to the axial direction of the powertrain or the axial direction of the motor.

[0089] In order to improve the integration and integration of the power supply device, miniaturize the powertrain and improve the performance of the whole vehicle. The present application provides an all-in-one power supply device, which is used to charge and discharge the battery and to drive the motor. The power supply device includes an integrated slotted shell, an upper circuit board and a lower circuit board. Among them, the lower circuit board includes a main area and a secondary area, and the main area and the secondary area are arranged adjacent to each other along the first direction. The integrated slotted shell includes a bottom plate, and the bottom plate, the secondary area of the lower circuit board, and the upper circuit board are stacked in sequence along the third direction. The main area and the upper circuit board are arranged along the third direction. The main area is used to carry the bus capacitors and power modules of the motor controller and multiple chips of the vehicle controller, and the secondary area is used to carry at least part of the power switch tubes of the DC converter. The upper circuit board is used to carry multiple power switch tubes, multiple inductors and multiple capacitors of the on-board charger. By laying the upper circuit board and the lower circuit board flat, space in the height direction of the power supply device is saved. The upper circuit board and the sub-regions of the lower circuit board are stacked in the height direction, which is beneficial to reducing the space occupied by laying the upper circuit board and the lower circuit board flat, which is beneficial to the miniaturization of the power supply device. It can also meet the requirements of installing the components in the power supply device from the bottom to the top from the integrated groove shell bottom plate, simplifying the installation process.

[0090] The all-in-one power supply device provided in the embodiment of the present application is applied to an all-in-one powertrain, and the all-in-one powertrain is applied to an electric vehicle to improve the overall performance of the electric vehicle.

[0091] Figure 1 This is a schematic structural diagram of the electric vehicle 1 provided in an embodiment of the present application.

[0092] like Figure 1 As shown, in the embodiment of the present application, the electric vehicle 1 refers to a wheeled device driven or towed by a power device.

[0093] In the embodiment of the present application, the electric vehicle 1 includes a powertrain 10, a frame 20, a battery 30, and wheels 40. The powertrain 10 and battery 30 are fixed to the frame 20. The powertrain 10 receives power from the battery 30 and drives the wheels 40. In the embodiment of the present application, the battery 30 may also be referred to as a battery pack or a power battery. In the embodiment of the present application, the powertrain 10 includes a motor 300, a reducer 200, and a power supply device 100. In the embodiment of the present application, the motor 300 includes a motor shaft, a motor stator, and a motor rotor. In the embodiment of the present application, the reducer 200 is a single-speed reduction gear assembly or a two-speed or multi-speed reduction gear assembly. The motor rotor in the motor 300 is fixedly mounted on the motor shaft. After receiving AC power, the motor stator drives the motor rotor to rotate, thereby driving the motor shaft to rotate. The motor shaft of the motor 300 is connected to the reducer 200 for transmission. In one embodiment, the reducer 200 includes a gear assembly, an input shaft, an intermediate shaft, and an output shaft. The motor shaft of the motor 300 is used for transmission connection to the input shaft of the reducer 200, and the input shaft is connected to the output shaft through a gear assembly and an intermediate transmission.

[0094] Figure 2A This is a schematic diagram of the structure of the powertrain 10 provided in an embodiment of the present application. Figure 2B This is another structural schematic diagram of the powertrain 10 provided in an embodiment of the present application. Figure 2C This is another structural schematic diagram of the powertrain 10 provided in an embodiment of the present application. Figure 3 This is an exploded schematic diagram of the powertrain 10 provided in an embodiment of the present application.

[0095] like Figure 2A As shown, the reducer 200 includes an input shaft 230, an intermediate shaft 240, and an output shaft 250. The input shaft 230 is fixed with an input wheel, the intermediate shaft 240 is fixed with an intermediate wheel, and the output shaft 250 is fixed with an output wheel. The input shaft 230 is connected to the motor shaft in a transmission manner. The input shaft 230 drives the input wheel of the reducer 200 to rotate, and the input wheel drives the intermediate wheel to rotate, and the intermediate wheel then transmits power to the output wheel. In one embodiment, the outer diameters of the gears of the input wheel, intermediate wheel, and output wheel increase in sequence, and the number of helical teeth on the outer rings of the gears of the input wheel, intermediate wheel, and output wheel gradually increases, so as to facilitate the realization of two-stage deceleration, achieve deceleration and torque increase, and better match the power requirements of the entire vehicle.

[0096] like Figure 2A As shown, the powertrain 10 further includes a heat exchanger 400. In the embodiment of the present application, the motor 300 and the reducer 200 are cooled and lubricated with cooling oil. The heat exchanger 400 is used to cool the cooling oil.

[0097] In one embodiment, the heat exchanger 400 includes a heat exchanger inlet 410 and a heat exchanger outlet 420. The heat exchanger inlet 410 is used to receive coolant, which exchanges heat with cooling oil in the heat exchanger 400, removing heat from the higher-temperature cooling oil. The coolant then flows out of the heat exchanger 400 through the heat exchanger outlet 420, thereby cooling the entire powertrain 10.

[0098] In the embodiment of the present application, the heat exchanger 400 and the reducer 200 are stacked along the second direction Y, so that the heat exchanger 400 does not occupy the height of the powertrain 10 along the third direction Z, making the height of the powertrain 10 lower, which is conducive to the installation of the powertrain 10 in an electric vehicle.

[0099] In an embodiment of the present application, the power supply device 100, the motor 300, and the reducer 200 can adopt a split structure or an integrated structure. In one embodiment, the motor 300 and the power supply device 100 share a housing, which is conducive to reducing the volume of the power assembly 10, making the power assembly 10 more centralized. In one embodiment, the reducer 200 and the power supply device 100 share a housing, which is conducive to reducing the volume of the power assembly 10, making the power assembly 10 more centralized. In one embodiment, the motor 300, the reducer 200 and the power supply device 100 share a housing, which is conducive to reducing the volume of the power assembly 10, making the power assembly 10 more centralized.

[0100] In one embodiment, the motor 300 and the reducer 200 are of an integrated structure. Figure 2A As shown, the motor 300 and the reducer 200 share an integrated housing 500. The integrated housing 500 of the motor 300 and the reducer 200 is a separate structure from the housing of the power supply device 100. The housing of the power supply device 100 is fixed above the integrated housing 500 of the motor 300 and the reducer 200.

[0101] In one embodiment, the housing of the powertrain 10 further includes a motor end cover 600 and a reducer end cover 700. Figure 2A As shown, along the axial direction of the motor 300, the integrated housing 500 is arranged between the motor end cover 600 and the reducer end cover 700. The integrated housing 500 and the motor end cover 600 together form a motor housing cavity, while the integrated housing 500 and the reducer end cover 700 together form a reducer housing cavity. The motor housing cavity is used to secure the stator of the motor 300 and to accommodate the rotor of the motor 300, while the reducer housing cavity is used to accommodate the gear assembly of the reducer 200.

[0102] In one embodiment, the reducer end cover 700 includes an input shaft bearing hole 210, an intermediate shaft bearing hole 220, and an output shaft bearing hole 260. Figure 2AAs shown, the input shaft bearing hole 210 is used to accommodate the bearing of the input shaft 230 of the reducer 200, and the input shaft 230 of the reducer 200 is connected to the motor shaft of the motor 300. The intermediate shaft bearing hole 220 is used to accommodate the bearing of the intermediate shaft 240 of the reducer 200, and the output shaft bearing hole 260 is used to accommodate the bearing of the output shaft 250 of the reducer 200.

[0103] In one embodiment, the reducer end cover 700 includes multiple compressor mounting bosses 11. These multiple compressor mounting bosses 11 are used to secure the compressor. Arranging multiple compressor mounting bosses 11 on the reducer end cover 700 allows the compressor to be secured to the powertrain 10, allowing the compressor to be integrated into the powertrain 10, resulting in a higher level of integration.

[0104] In one embodiment, a plurality of compressor mounting bosses 11a are distributed around the input shaft bearing hole 210 and the intermediate shaft bearing hole 220. Figure 2A As shown, multiple compressor mounting bosses 11a are distributed around the input shaft bearing hole 210 and the intermediate shaft bearing hole 220, which facilitates the installation of the compressor on the outer side of the reducer end cover 700 along the second direction Y. The arrangement along the peripheral sides of the input shaft bearing hole 210 and the intermediate shaft bearing hole 220 can also make the contact area between the compressor mounting boss 11a and the compressor wider, making the compressor installation more stable and improving the reliability of the structure.

[0105] In one embodiment, the reducer end cover 700 further includes a filler plug 201 and an oil drain plug 202. Figure 2A As shown, oil filler plug 201 is located at the center of intermediate shaft 240 of reducer 200. Intermediate shaft 240 of reducer 200 is a hollow shaft and forms the oil filler port for factory delivery or maintenance of power assembly 10. Oil drain plug 202 is located at the lowest point of power assembly 10 and is connected to oil churn tank 203. Oil drain plug 202 allows the oil in power assembly 10 to be drained and replaced.

[0106] In one embodiment, the motor end cover 600 includes an annular fixing boss 12, which is used to fix the rotary transformer cover 800. Figure 2B As shown, the resolver cover 800, the motor end cap 600, and the annular fixing boss 12 enclose a motor terminal accommodating cavity. In one embodiment, the motor terminal accommodating cavity is used to accommodate the resolver sensor of the motor 300. In another embodiment, the motor terminal accommodating cavity is used to accommodate the three-phase copper busbar of the motor 300.

[0107] In one embodiment, the motor end cover 600 includes a plurality of compressor mounting bosses 11b, which are used to fix the compressor. Figure 2BAs shown, multiple compressor mounting bosses 11b are distributed around the annular fixed boss 12. The compressor is mounted and fixed to the outer side of the rotary transformer cover 800 along the second direction Y. The multiple compressor mounting bosses 11b are distributed around the annular fixed boss 12, making the force applied to the compressor installation more uniform, facilitating a more stable installation of the compressor and improving the reliability of the structure.

[0108] In one embodiment, the resolver cover plate 800 is a damping cover plate, which can effectively reduce noise radiation and improve the NVH performance of the powertrain 10 .

[0109] like Figure 2B As shown, in one embodiment, the integrated housing 500 includes a differential side suspension point 13, the motor end cover 600 includes a motor end cover side suspension point 14, and the reducer end cover 700 includes a reducer side suspension point 15 (as shown in FIG. Figure 2A As shown), the reducer 200 and the motor 300 are connected to the vehicle suspension and bracket through the differential side suspension point 13, the motor end cover side suspension point 14, and the reducer side suspension point 15. The suspension is connected to the subframe, and then the powertrain 10 is installed on the vehicle subframe.

[0110] like Figure 2B As shown, the integrated housing 500 also includes an oil pump mounting hole 16 and a filter mounting hole 17. The oil pump mounting hole 16 is used to install an oil pump, which is used to drive the cooling oil to flow in the motor 300 and the reducer 200. The filter mounting hole 17 is used to install a filter, which is used to filter impurities in the cooling oil.

[0111] like Figure 2A 、 Figure 2B and Figure 2C As shown, the integrated housing 500 further includes a plurality of power supply device fixing points 133 , which are used to fix the integrated housing 500 to the housing of the power supply device 100 .

[0112] In one embodiment, the motor 300 and the reducer 200 are of an integrated structure. Figure 3 As shown, the housings of the motor 300 and the reducer 200 and the housing of the power supply device 100 are split structures, and the housing of the power supply device 100 is fixed above the housings of the motor 300 and the reducer 200.

[0113] In one embodiment, the housing of the power supply device 100 includes a liquid inlet 115 and a liquid outlet 116. Figure 3As shown, the liquid inlet 115 is used to communicate with the liquid outlet 116 through the internal flow channel of the power supply device 100. The liquid inlet 115 is used to receive coolant, and the liquid outlet 116 is used to output the coolant through the external cooling pipe 116a. The external cooling pipe 116a is arranged between the housing of the power supply device 100 and the integrated housing 500 of the motor 300 and the reducer 200. The external cooling pipe 116a connects the liquid outlet 116 of the housing of the power supply device 100 and the heat exchanger 400, making the layout of the power assembly 10 more compact.

[0114] In one embodiment, the housing of the power supply device 100 includes a motor winding connector 177. Figure 3 As shown, the motor winding connector 177 passes through the housing of the power supply device 100 and the housings of the motor 300 and the reducer 200. The power supply device 100 outputs three-phase AC power to drive the motor 300 through the motor winding connector 177, making the power assembly 10 more compact.

[0115] Combine Figure 2C and Figure 3 As shown, two bolts 132 are provided in the middle area of the lower surface of the base plate 120 of the power supply device 100 and the middle area of the motor 300 housing, which further fix the integrated groove shell 110 and the motor 300 housing, thereby reducing the vibration amplitude of the integrated groove shell 110 and the motor 300 housing, improving the structural mode, reducing noise, and improving the NVH performance of the powertrain 10.

[0116] In an embodiment of the present application, the power supply device 100 is used to charge and discharge the battery 30 and to drive the motor 300. The power supply device 100 is used to receive direct current (DC) power delivered by the battery 30 and convert the DC power into alternating current (AC) power and deliver it to the motor 300. In addition, the power supply device 100 is also used to charge the battery 30. In one embodiment, the power supply device 100 is used to receive AC power and convert the AC power into DC power to charge the battery 30. The AC power includes mains electricity or residential AC power. In one embodiment, the power supply device 100 receives high-voltage DC power and provides DC power to the battery 30 for charging.

[0117] Figure 4 This is a schematic diagram of the structure of the power supply device 100 provided in an embodiment of the present application. Figure 4 As shown, in one embodiment, the power supply device 100 includes a motor controller 101 , an on-board charging device 102 , a power distribution device 103 and a vehicle controller 104 .

[0118] The motor controller 101 is called Motor Control Unit (MCU) in English. In one embodiment, the motor controller 101 is used to receive direct current (DC) from the power battery 30 and convert the DC power into alternating current (AC) for transmission to the stator winding of the motor 300 to drive the motor 300.

[0119] The on-board charging device 102 is called On-Board Charger (OBC) in English. In one embodiment, the on-board charging device 102 is used to convert AC power from the grid into DC power or directly transmit DC power to charge the power battery 30 or power the loads of the entire vehicle.

[0120] The power distribution unit 103 is called a Power Distribution Unit (PDU) in English. In the embodiments of the present application, the power distribution unit 103 is also referred to as a high-voltage distribution box. In one embodiment, the power distribution unit 103 is responsible for distributing and managing power within the high-voltage system of the electric vehicle 1, providing functions such as charge and discharge control, high-voltage component power-on control, circuit overload and short-circuit protection, high-voltage sampling, and low-voltage control, thereby protecting and monitoring the operation of the high-voltage system.

[0121] The vehicle control unit (VCU) 104 is a vehicle control unit (VCU). In one embodiment, the VCU 104 is responsible for normal vehicle operation, brake energy regeneration, energy routing and network routing for the vehicle's drive system and power battery 30, fault diagnosis and handling, and vehicle status monitoring.

[0122] In one embodiment, the housing of the power supply device 100 includes an integrated channel housing 110 and a cover plate 130. Figure 4 As shown, the cover plate 130 and the integrated channel housing 110 together enclose a receiving cavity 140. The receiving cavity 140 is used to accommodate multiple electrical components of each of the motor controller 101, the onboard charging device 102, the power distribution device 103 and the vehicle controller 104 in the power supply device 100.

[0123] In one embodiment, the integrated channel housing 110 is also used to fix multiple connectors. Figure 4 As shown, multiple connectors include a battery charge and discharge connector 171, a DC power connector 172, a power supply connector 173, an AC power connector 175, a low voltage load connector 176, a motor winding connector 177 (such as Figure 3 as shown) and communication connector 178 (as Figure 3 In one embodiment, the integrated groove shell 110 further includes a liquid inlet 115 and a liquid outlet 116 (as shown). Figure 3The liquid inlet 115 is used to communicate with the liquid outlet 116 through the internal flow channel of the integrated groove shell 110.

[0124] In one embodiment, the power supply device 100 receives direct current (DC) power from the battery 30 through the battery charge and discharge connector 171 , and converts the DC power into AC power, which is then transmitted to the stator winding of the motor 300 through the motor winding connector 177 , driving the rotor and motor shaft of the motor 300 to rotate. The rotation of the motor shaft drives the input shaft 230 of the reducer 200 to rotate. The input shaft 230 of the reducer 200 transmits power to the internal gears of the reducer 200 , and the output shaft 250 of the reducer 200 transmits the power of the motor 300 to the wheels 40 .

[0125] In one embodiment, the power supply device 100 is connected to a DC power source via a DC power connector 172 to charge the battery 30. The DC power source is connected to the DC power connector 172, and the DC power source sequentially charges the battery 30 through the DC power connector 172 in the power supply device 100, the electrical components of the power distribution device 103, and the battery charge and discharge connector 171. In one embodiment, the DC power source is a DC charging station.

[0126] In one embodiment, the power supply device 100 is connected to an AC power source via an AC power connector 175 to charge the battery 30. The AC power source is connected to the AC power connector 175, and the AC power source sequentially charges the battery 30 through the AC power connector 175 in the power supply device, the electrical components in the onboard charger 102, and the battery charge and discharge connector 171. In one embodiment, the AC power source is an AC charging station or an AC power grid.

[0127] In one embodiment, the power supply device 100 is connected to the compressor via the power connector 173 to provide power to the compressor. The compressor receives current from the battery 30 via the power connector 173, the internal electrical components of the power supply device 100, and the battery charge and discharge connector 171. The compressor is a component of the air conditioning system in the vehicle and provides cooling or heating for the vehicle.

[0128] In one embodiment, the power supply device 100 connects to a low-voltage load via a low-voltage load connector 176 to supply power to the low-voltage load. The low-voltage load connector 176 connects the low-voltage load to the power supply device 100. The low-voltage load includes at least one of a low-voltage battery, lights, wipers, air conditioning, audio, USB port, instrument panel, and control display. In one embodiment, the low-voltage battery can also supply power to other low-voltage loads. In one embodiment, the battery 30 supplies power to the low-voltage load via the battery charge and discharge connector 171, electrical components in the power supply device 100, and the low-voltage load connector 176.

[0129] In one embodiment, the communication connector 178 is connected to the vehicle controller 104, and the communication connector 17 is used to receive and send signals.

[0130] In an embodiment of the present application, the power supply device 100 integrates a motor controller 101, an on-board charging device 102, a power distribution device 103 and a vehicle controller 104. The motor controller 101, the on-board charging device 102, the power distribution device 103 and the vehicle controller 104 are respectively connected to multiple external functional devices through multiple connectors fixed by an integrated grooved shell 110 to achieve structural integration and functional fusion of the power supply device 100 and the powertrain 10.

[0131] Figure 5 This is an exploded view of the power supply device 100 provided in an embodiment of the present application. Figure 6 Another structural schematic diagram of the power supply device 100 provided in an embodiment of the present application. Figure 7 Another exploded view of the power supply device 100 provided in an embodiment of the present application. Figure 8 Another exploded view of the power supply device 100 provided in an embodiment of the present application.

[0132] like Figure 5 As shown, the power supply device 100 includes an integrated trough shell 110 and a cover plate 130. The integrated trough shell 110 and the cover plate 130 enclose a receiving cavity 140. The receiving cavity 140 is used to accommodate the motor controller 101, the on-board charging device 102, the power distribution device 103, and the vehicle controller 104, each of which includes electrical components to realize their respective functions.

[0133] In one embodiment, the cover plate 130 is a damping cover plate, which is beneficial to reducing the amplitude of the cover plate 130 during the operation of the power supply device 100, thereby improving the structural mode, reducing noise, and improving the NVH performance of the power supply device 100.

[0134] In one embodiment, the cover plate 130 is detachably connected to the integrated trough housing 110. When the internal components of the power supply device 100 need to be repaired or replaced, the detachable connection relationship helps reduce the difficulty and cost of operation. In one embodiment, the detachable connection can be a screw connection.

[0135] like Figure 4 and Figure 5 As shown, two bolts 131 are located in the center of the cover plate 130. Along the second direction Y, a DC power connector 172, two bolts 131, and a low-voltage load connector 176 are arranged in that order. Since the cover plate 130 has a large surface area, placing the bolts 131 in the center of the cover plate 130 helps strengthen the mounting stability of the cover plate 130 and the integrated channel housing 110. This also reduces the vibration amplitude of the cover plate 130, thereby lowering the noise generated by the vibration of the cover plate 130 during operation of the power supply device 100, thereby improving the NVH performance of the vehicle.

[0136] In one embodiment, the power supply device 100 includes a heat sink 105, an upper circuit board 150 and a lower circuit board 160. Figure 5 and Figure 6 As shown, the accommodating cavity 140 is used to accommodate the heat sink 105 , the upper circuit board 150 and the lower circuit board 160 .

[0137] In one embodiment, the integrated channel shell 110 includes a bottom plate 120 and a peripheral side wall 112. Figure 5 and Figure 6 As shown, the bottom plate 120 , the peripheral sidewalls 112 and the cover plate 130 together form an accommodating groove. The bottom plate 120 and the peripheral sidewalls 112 of the integrated groove shell 110 together form an accommodating cavity 140 .

[0138] In one embodiment, the peripheral sidewall 112 of the integrated trough shell 110 includes a liquid inlet 115, and the bottom plate 120 of the integrated trough shell 110 includes a liquid outlet 116. Figure 3 、 Figure 4 and Figure 5 As shown, the radiator 105 receives the coolant through the liquid inlet 115 and outputs the coolant through the liquid outlet 116 .

[0139] In one embodiment, the bottom plate 120 of the integrated channel housing 110 includes an internal flow channel, and the internal flow channel of the bottom plate 120 receives the coolant through the liquid inlet 115 and outputs the coolant through the liquid outlet 116. Figure 5 、 Figure 6 As shown, the upper circuit board 150 is sandwiched between the base plate 120 and the radiator 105. The internal flow channel of the base plate 120 and the radiator 105 use coolant to dissipate heat from the electrical components carried by the upper circuit board 150, thereby improving heat dissipation efficiency and enhancing the cooling effect of the coolant on the power supply device 100.

[0140] In one embodiment, the base plate 120, the lower circuit board 160, the upper circuit board 150, the heat sink 105 and the cover plate 130 are stacked in sequence along the third direction Z. Figure 5 、 Figure 6 、 Figure 7 As shown, the base plate 120, the lower circuit board 160, the upper circuit board 150, the heat sink 105 and the cover plate 130 are stacked in sequence, so that the length of the integrated groove shell 110 along the first direction X and the second direction Y is relatively small, which is conducive to the miniaturization of the power supply device 100.

[0141] Figure 9 Another exploded view of the power supply device 100 provided in an embodiment of the present application. Figure 10 Another structural schematic diagram of the power supply device 100 provided in an embodiment of the present application.

[0142] In one embodiment, the motor controller 101 includes electrical components such as a bus capacitor 163, a power module 164, a Hall copper busbar assembly 166, and a three-phase copper busbar assembly 177. Figure 9 and Figure 10 As shown, the bus capacitor 163 is used to smooth the bus voltage so that the bus voltage of the motor controller 101 remains relatively smooth when the power switch tube is switched. At the same time, it can also reduce the inductance parameters of the line from the power switch tube end of the motor controller 101 to the battery 30 end, weaken the peak voltage of the bus, and absorb the high pulse current of the bus end of the motor controller 101. At the same time, it can prevent the overcharging of the bus end voltage and the influence of the transient voltage on the motor controller 101.

[0143] In one embodiment, along the second direction Y, the busbar capacitor 163, the power module 164, the Hall copper busbar assembly 166 and the three-phase copper busbar assembly 177 are arranged in sequence. Figure 10 As shown, the busbar capacitor 163 is connected to the battery charging and discharging connector 171 through a copper busbar, and the three-phase copper busbar assembly 177 passes through a mounting hole 111f (as shown in FIG. Figure 3 As shown, the three-phase copper busbar assembly 177 transmits the AC power from the motor controller 101 to the motor windings, driving the motor 300. In one embodiment, the three-phase copper busbar assembly 177 serves as a motor winding connector 177. In this embodiment of the present application, the electrical components of the motor controller 101 are arranged along the second direction Y, which facilitates power flow and reduces power loss.

[0144] In one embodiment, the three-phase copper busbar assembly 177, the power module 164 and the bus capacitor 163 are pre-assembled into an integral module by laser welding or screw fixation and then installed in the power supply device 100, which is beneficial to improving the assembly and welding quality of the power supply device 100.

[0145] In one embodiment, the onboard charger 141 is used to connect the battery charging and discharging connector 171, the power supply connector 173 and the AC power supply connector 175. The onboard charging device 102 includes the onboard charger 141 and the DC converter 142. Figure 9 and Figure 10 As shown, the onboard charger 141 includes a power switch tube 141a, an inductor 141b, and a capacitor 141c, and the DC converter 142 includes a power switch tube 142a and a magnetic device. In the embodiment of the present application, the magnetic device includes at least one of a capacitor and an inductor.

[0146] In one embodiment, the power distribution device 103 includes a plurality of copper busbars. Figure 10 As shown, the power distribution device 103 is used to connect the DC power supply connector 172 and the battery charging and discharging connector 171.

[0147] In one embodiment, the vehicle controller 104 includes a plurality of chips 144. The vehicle controller 104 is used to connect to the communication connector 178. Figure 9 In the middle, 144 shows the location of the chip 144 .

[0148] In an embodiment of the present application, the power supply device 100 carries electrical components in the motor controller 101, the on-board charger 141 and the DC converter 142, the power distribution device 103, and the vehicle controller 104 through the stacked upper circuit board 150 and the lower circuit board 160, so that the functional circuits in the power supply device 100 are deeply integrated and more integrated.

[0149] Figure 11 This is a schematic structural diagram of the integrated groove shell 110 provided in an embodiment of the present application. Figure 12 This is another structural schematic diagram of the integrated channel shell 110 provided in an embodiment of the present application.

[0150] In one embodiment, the integrated channel housing 110 includes a plurality of mounting holes 111, and the plurality of mounting holes 111 are used to fix the connecting parts. Figure 11 and Figure 12 As shown, the integrated trough shell 110 includes a plurality of mounting holes 111 , which facilitates the installation of a plurality of electrical components on the integrated trough shell 110 , and facilitates the electrical connection of external electrical components with the power supply device 100 , thereby improving the integration of the power supply device 100 .

[0151] In one embodiment, the integrated groove shell 110 includes a bottom plate 120 and a peripheral side wall 112 , and the bottom plate 120 and the peripheral side wall 112 together form a receiving groove.

[0152] like Figure 11 As shown, the peripheral sidewall 112 of the integrated trough shell 110 includes a first sidewall 112a, a second sidewall 112b, a third sidewall 112c, and a fourth sidewall 112d. The first sidewall 112a and the second sidewall 112b are arranged opposite each other along the first direction X, and the third sidewall 112c and the fourth sidewall 112d are arranged opposite each other along the second direction Y. The first sidewall 112a, the third sidewall 112c, the second sidewall 112b, and the fourth sidewall 112d are sequentially connected and enclosed to form the peripheral sidewall 112 of the integrated trough shell 110. Three mounting holes 111a, 111b, and 111c extend through the third sidewall 112c along the second direction Y, and two mounting holes 111e and 111d extend through the fourth sidewall 112d along the second direction Y. The liquid inlet 115 is located on the second sidewall 112b.

[0153] In one embodiment, the mounting holes 111a, 111b, and 111c are used to fix the connectors 171, 172, and 173, respectively. Figure 10 and Figure 11As shown, the mounting holes 111d and 111e are used to fix the connectors 175 and 176 respectively. The two bottom plate mounting holes 111f and 111g are used to fix the connectors 177 and 178 respectively.

[0154] In an embodiment of the present application, the three mounting holes 111a, 111b, and 111c include a battery charging and discharging connector mounting hole 111a, a DC power connector mounting hole 111b, and a power supply connector mounting hole 111c. The battery charging and discharging connector mounting hole 111a, the DC power connector mounting hole 111b, and the power supply connector mounting hole 111c are respectively used to fix the power supply device 100 for connecting the battery 30, the DC power supply, and the compressor. Connectors 171, 172, and 173.

[0155] In the embodiment of the present application, the two mounting holes 111d and 111e are respectively an AC power connector mounting hole 111d and a low-voltage load connector mounting hole 111e. The AC power connector mounting hole 111d is used to fix the connector 175 used by the power supply device 100 to connect to the AC power source, and the low-voltage load connector mounting hole 111e is used to fix the connector 176 used by the power supply device 100 to connect to the low-voltage load. The AC power connector 175 is used to connect to the AC power source.

[0156] In the embodiment of the present application, the two bottom plate mounting holes 111g and 111f are respectively the communication connector mounting hole 111g and the three-phase connector mounting hole 111f. The three-phase connector mounting hole 111f is used to fix the connector 177 of the power supply device 100 for connecting to the motor winding. After the power supply device 100 converts the DC power in the battery 30 into AC power, it outputs it to the motor winding through the connector 177 connected to the motor winding, driving the motor 300 to operate. The communication connector mounting hole 111g is used to fix the communication connector 178 of the vehicle controller 104 in the power supply device 100 for connecting to the vehicle load. The vehicle controller 104 is used to send control signals to the power supply device 100 to optimize the energy distribution and operation of the vehicle.

[0157] In the embodiment of the present application, the layout of multiple mounting holes 111 makes the power flow smoother, reduces power loss, electrically isolates the connectors, avoids crosstalk, and improves safety performance. The layout of multiple mounting holes 111 makes the power supply device 100 small in size, which is conducive to the miniaturization of the powertrain 10.

[0158] like Figure 9 As shown, in one embodiment, the power supply connector mounting hole 111c is also used to fix the connector 174 of the power supply device 100 for connecting to the heater.

[0159] In an embodiment of the present application, the connector 174 of the heater is used to connect to a heater (not shown), and the heater is used to heat the entire vehicle. The heater is used to heat the seats, including heating the front seats, rear seats or middle seats. In some embodiments, when the electric vehicle 1 is a motorhome, the heater can also heat the seats and lying positions in the motorhome. At the same time, the heater can also perform defrosting and demisting after raising the temperature of the entire vehicle.

[0160] In one embodiment, the housings of the connector 173 for the compressor and the connector 174 for the heater are integrated into a single structure. The connector 173 for the compressor and the connector 174 for the heater share a single housing, which improves the integration of the power supply device 100 and facilitates the deep integration of the power supply device 100 and the powertrain 10. Furthermore, sharing a single housing reduces the number of circuits within the power supply device 100, conserving materials and reducing production costs.

[0161] In one embodiment, the bottom plate 120 of the integrated groove shell 110 further has a plurality of receiving grooves. Figure 12 As shown, the multiple receiving slots are used to receive multiple electrical components in the power supply device 100 .

[0162] In one embodiment, the plurality of receiving slots include a distribution slot 121, a busbar capacitor slot 122, a transformer slot 123, an inductor slot 124 and a DC filter slot 125. Figure 12 As shown, the distribution slot 121 is used to accommodate the copper busbar of the distribution device 103, the bus capacitor slot 122 is used to accommodate the bus capacitor 163 of the motor controller 101, the transformer slot 123 is used to accommodate the transformer 141d of the vehicle charger 141, the inductor slot 124 is used to accommodate multiple inductors 141b of the vehicle charger 141, and the DC filter slot 125 is used to accommodate the magnetic components of the DC filter 146.

[0163] In the embodiment of the present application, by forming multiple accommodating grooves on the bottom plate 120, the electrical components in the power supply device 100 are arranged more regularly, which is beneficial to reducing the internal space of the power supply device 100 and reducing the volume of the power supply device 100.

[0164] In one embodiment, the integrated channel housing 110 includes a plurality of shielding walls 113a, 113b, 113c, 113d, 113e, and 113f. Figure 11 As shown, multiple installation areas are formed between the peripheral side wall 112 and the shielding wall or between multiple shielding walls, and the multiple installation areas are used to fix the electrical components in the motor controller 101, the on-board charger 141, the DC converter 142, the vehicle controller 104 and the distribution device 103.

[0165] The integrated slotted housing 110 of the all-in-one power supply device 100 provided in the embodiment of the present application includes a plurality of mounting holes 111. Figure 11 and Figure 12 The three mounting holes 111a, 111b, and 111c are respectively used to fix the connectors 171, 172, and 173 of the power supply device 100 for connecting the battery 30, the DC power supply (not shown), and the compressor (not shown).

[0166] like Figure 11 and Figure 12 As shown, three mounting holes 111a, 111b, and 111c penetrate the peripheral side wall 112 of the integrated trough shell 110 along the second direction Y. The three mounting holes 111a, 111b, and 111c are arranged on the same side of the integrated trough shell 110, and the three mounting holes 111a, 111b, and 111c are spaced apart along the first direction X. In the embodiment of the present application, the power supply device 100 integrates the functions of charging and discharging the battery, driving the motor, and supplying power to the compressor, and the connectors 171, 172, and 173 for connecting the battery, the DC power supply, and the compressor are fixed in the mounting hole 111 of the integrated trough shell 110 of the power supply device 100, making the power supply device 100 more integrated.

[0167] In one embodiment, three mounting holes 111a, 111b, and 111c pass through the peripheral side wall 112 of the integrated grooved shell 110 along the second direction Y, so that the connectors 171, 172, and 173 connecting the battery 30, the DC power supply, and the compressor do not require too many cables when connecting to the electrical components in the power supply device 100, thereby simplifying the connection lines between the power supply device 100 and the battery 30, the DC power supply, and the compressor, making the wiring of the electric vehicle simpler.

[0168] In one embodiment, three mounting holes 111a, 111b, and 111c penetrate the peripheral side wall 112 of the integrated grooved shell 110 along the second direction Y, which is conducive to arranging the connectors 171, 172, and 173 for connecting the battery 30, the DC power supply, and the compressor along the second direction Y on the power supply device 100, reducing the space occupied by the power supply device 100 along the first direction X and the third direction Z, facilitating the miniaturized arrangement and deep integration of the power supply device 100, and facilitating the miniaturized arrangement of the power assembly 100.

[0169] In one embodiment, the three mounting holes 111a, 111b, and 111c are arranged on the same side of the integrated trough shell 110, allowing the connectors 171, 172, and 173 for the battery 30, the DC power supply, and the compressor to be integrated on the same side of the integrated trough shell 110 of the power supply device 100. This increases the integration of the power supply device 100 and helps reduce the space occupied by the power supply device 100 along the first direction X. This allows the other side surfaces of the integrated trough shell 110 to be used for mounting other connectors or electrical components, facilitating a miniaturized layout and greater diversification of the power supply device 100 and the powertrain 10. The three mounting holes 111a, 111b, and 111c are arranged at intervals along the first direction X, which helps provide more space for the connectors 171, 172, and 173 for the battery 30, the DC power supply, and the compressor to connect with the battery 30, the DC power supply, and the compressor, resulting in a more reasonable layout.

[0170] In one embodiment, the three mounting holes 111a, 111b, and 111c are respectively a battery charging and discharging connector mounting hole 111a, a DC power connector mounting hole 111b, and a power supply connector mounting hole 111c. Figure 11 As shown, along the first direction X, the power supply connector mounting hole 111 c , the DC power supply connector mounting hole 111 b and the battery charge and discharge connector mounting hole 111 a are sequentially arranged at intervals.

[0171] In the embodiment of the present application, the battery charge and discharge connector mounting hole 111a is used to mount the connector 171 for arranging the battery 30. The battery 30 receives charging from an external power source through the connector 171 of the battery 30 of the power supply device 100. The battery 30 can also release the electrical energy stored in the battery 30 to the power supply device 100 through the connector 171 of the battery 30, thereby providing current for the operation of the electrical components in the power supply device 100. The DC power connector mounting hole 111b is used to mount the connector 172 for arranging the DC power source. The DC power connector 172 is connected to an external DC power source to achieve fast charging of the battery 30. In one embodiment, the DC power source is a DC charging pile. The power supply connector mounting hole 111c is used to mount the connector 173 for arranging the compressor. The compressor receives current provided by the power supply device 100. The compressor is a component of the air conditioning system in the entire vehicle and cools or heats the entire vehicle.

[0172] In the embodiment of the present application, the power supply connector mounting holes 111c, the DC power supply connector mounting holes 111b, and the battery charge-discharge connector mounting holes 111a are arranged on the same side of the integrated trough shell 110, which helps improve the integration of the integrated trough shell 110. The power supply connector mounting holes 111c, the DC power supply connector mounting holes 111b, and the battery charge-discharge connector mounting holes 111a are sequentially spaced along the first direction X, so that the compressor connector 173, the DC power supply connector 172, and the battery 30 connector 171 are sequentially spaced along the first direction X. This helps to arrange the connecting cables between the connectors 171, 172, 173 and the power battery 30, the DC power supply, and the compressor on the same side of the power supply device 100, making the connecting cables more regular and the layout more reasonable.

[0173] In the embodiment of the present application, the DC power connector mounting hole 111b is closer to the battery charge and discharge connector mounting hole 111a than the power connector mounting hole 111c along the first direction X, which is beneficial for the DC power supply to charge the battery 30 in a shorter path, saving materials and reducing production costs.

[0174] like Figure 11 As shown, along the first direction X, the distance between the power supply connector mounting hole 111c and the DC power supply connector mounting hole 111b is smaller than the distance between the DC power supply connector mounting hole 111b and the battery charge and discharge connector mounting hole 111a.

[0175] In the embodiment of the present application, the distance between the power supply connector mounting hole 111c and the DC power supply connector mounting hole 111b along the first direction X is recorded as L1, and the distance between the DC power supply connector mounting hole 111b and the battery charging and discharging connector mounting hole 111a along the first direction X is recorded as L2. L1 is smaller, which is conducive to a more compact layout between the compressor connector 173 and the DC power supply connector 172, which is conducive to reducing the space occupied along the first direction X and improving the integration of the power supply device 100.

[0176] In the embodiment of the present application, L2 is relatively large, which is conducive to the arrangement of the connector 172 of the DC power supply and the connector 171 of the battery 30 on the integrated groove shell 110, and is also conducive to providing sufficient space for the arrangement of the copper busbar in the power supply device 100 required for the DC power supply to charge the battery 30. A general DC power supply transmits high-voltage DC power to the battery 30, and the DC power supply and the battery 30 are electrically connected through a wider copper busbar, which is used to transmit high-voltage DC power. L2 is relatively large, so that the distance between the connector 172 of the DC power supply and the connector 171 of the battery 30 is relatively large, so that there is sufficient space inside the integrated groove shell 110 to install multiple copper buses between the connector 172 of the DC power supply and the connector 171 of the battery 30, and the electrical insulation between the multiple copper buses can be ensured.

[0177] In one embodiment, two of the mounting holes 111d and 111e of the plurality of mounting holes 111 are used to fix the connectors 175 and 176 of the power supply device 100 for connecting the AC power supply and the low-voltage load, respectively. Figure 10 and Figure 11 As shown, two mounting holes 111d and 111e penetrate the peripheral side wall 112 of the integrated channel shell 110 along the second direction Y. The two mounting holes 111e and 111d are arranged opposite to the three mounting holes 111a, 111b, and 111c along the second direction Y.

[0178] In the embodiment of the present application, the two mounting holes 111d and 111e penetrate the peripheral side wall 112 of the integrated trough shell 110 along the second direction Y, thereby eliminating the need for excessive cables when connecting the connectors 175 and 176 for connecting the AC power source and the low-voltage load to the electrical components within the power supply device 100. In the embodiment of the present application, the two mounting holes 111e and 111d penetrate the peripheral side wall 112 of the integrated trough shell 110 along the second direction Y, which facilitates the arrangement of the connectors 175 and 176 for the AC power source and the low-voltage load on the power supply device 100 along the second direction Y, thereby reducing the space occupied by the power supply device 100 along the first direction X and the third direction Z, and facilitating the miniaturization of the power assembly 10.

[0179] In the embodiment of the present application, the two mounting holes 111d and 111e are respectively the AC power connector mounting hole 111d and the low-voltage load connector mounting hole 111e. The two mounting holes 111d and 111e are arranged relative to the three mounting holes 111a, 111b, and 111c along the second direction Y. That is, the AC power connector mounting hole 111d and the low-voltage load connector mounting hole 111e are arranged relative to the battery charging and discharging connector mounting hole 111a, the DC power connector mounting hole 111b, and the power supply connector mounting hole 111c along the second direction Y. This facilitates the regular arrangement and reasonable layout of the multiple mounting holes 111 of the power supply device 100. At the same time, it also facilitates the overall arrangement and layout of the multiple mounting holes 111, reduces the space occupied by the power supply device 100 along the first direction X, and facilitates improving the integration of the power supply device 100 and facilitating the miniaturization of the power supply device 100.

[0180] In the embodiment of the present application, the AC power connector mounting hole 111d and the DC power connector mounting hole 111b are arranged relative to each other along the second direction Y, so that the AC power supply and the DC power supply supply the power supply device 100 from different sides of the power supply device 100, so that the AC power supply and the DC power supply are electrically isolated from each other to avoid mutual electrical influence.

[0181] In one embodiment, the distance between the two mounting holes 111e and 111d along the first direction X is less than half the length of the integrated channel shell 110. Figure 11As shown, the distance between the two mounting holes 111 a , 111 c that are furthest apart from each other along the first direction X is greater than half the length of the integrated channel housing 110 .

[0182] like Figure 10 、 Figure 11 As shown, the distance between the two mounting holes 111e and 111d along the first direction X is recorded as L3, that is, the distance between the AC power connector mounting hole 111d and the low-voltage load connector mounting hole 111e along the first direction X is L3, and the length of the integrated channel shell 110 along the first direction X is recorded as L4, L3<0.5L4, so that the AC power connector mounting hole 111d and the low-voltage load connector mounting hole 111e are arranged more compactly, providing more arrangement space for the motor controller 101 and the vehicle controller 104 of the power supply device 100, which are close to the AC power connector mounting hole 111d and the low-voltage load connector mounting hole 111e along the first direction X.

[0183] like Figure 11 As shown, the distance between the two mounting holes 111a, 111c with the greatest distance between them along the first direction X is recorded as L5, and the length of the integrated trough shell 110 along the first direction X is recorded as L6. The two mounting holes 111a, 111c with the greatest distance between them along the first direction X are the power supply connector mounting hole 111c and the battery charge-discharge connector mounting hole 111a. L5<0.5L6, which provides more space for the arrangement of the connector 173 of the compressor and the connector 171 of the battery 30, thereby facilitating full utilization of the space of the integrated trough shell 110 of the power supply device 100. This makes the arrangement of the three mounting holes 111a, 111b, 111c of the power supply device 100 more reasonable, and also facilitates the arrangement of the DC power connector mounting hole 111b between the power supply connector mounting hole 111c and the battery charge-discharge connector mounting hole 111a.

[0184] like Figure 10 and Figure 11 As shown, a mounting hole 111 (111d) of a connector 175 for fixedly connecting to an AC power source and a mounting hole 111 (111c) of a connector 173 for fixedly connecting to a compressor are arranged opposite to each other along the second direction Y. A mounting hole 111 (111e) of a connector 176 for fixedly connecting to a low-voltage load and a mounting hole 111 (111b) of a connector 172 for fixedly connecting to a DC power source are arranged opposite to each other along the second direction Y.

[0185] In an embodiment of the present application, one mounting hole 111 of the connector 175 for fixing the AC power supply is an AC power supply connector mounting hole 111d, and one mounting hole 111 of the connector 173 for fixing the compressor is a power supply connector mounting hole 111c. The AC power supply connector mounting hole 111d and the power supply connector mounting hole 111c are arranged relative to each other along the second direction Y, which is conducive to the regular layout of the multiple mounting holes 111 on the power supply device 100.

[0186] In an embodiment of the present application, a mounting hole 111 of a connector 176 for fixing a low-voltage load is a low-voltage load connector mounting hole 111e, and a mounting hole 111 of a connector 172 for fixing a DC power supply is a DC power supply connector mounting hole 111b. The low-voltage load connector mounting hole 111e and the DC power supply connector mounting hole 111b are arranged relative to each other along the second direction Y, which is conducive to the regular layout of the multiple mounting holes 111 of the power supply device 100.

[0187] In the embodiment of the present application, the AC power connector mounting holes 111d and the power connector mounting holes 111c are arranged relative to each other along the second direction Y, and the low-voltage load connector mounting holes 111e and the DC power connector mounting holes 111b are arranged relative to each other along the second direction Y. This facilitates a more compact layout of the mounting holes 111 on the integrated trough-shaped housing 110. The AC power connector mounting holes 111d, the power connector mounting holes 111c, the low-voltage load connector mounting holes 111e, and the DC power connector mounting holes 111b are relatively concentratedly arranged on one side of the integrated trough-shaped housing 110 of the power supply device 100. This facilitates providing sufficient space for the layout of the electrical components such as the battery charging and discharging connector mounting holes 111a, the motor controller 101, and the vehicle controller 104, and can also prevent electrical interference.

[0188] In one embodiment, two bottom plate mounting holes 111f and 111g of the plurality of mounting holes 111 are respectively used to fix the connector 177 of the power supply device 100 for connecting to the motor winding and the communication connector 178 of the vehicle controller 104 in the power supply device 100 for connecting to the vehicle load. Figure 10 and Figure 11As shown, two bottom plate mounting holes 111g and 111f penetrate the bottom plate 120 of the integrated trough shell 110 along the third direction Z. In the embodiment of the present application, the two bottom plate mounting holes 111f and 111g are respectively the three-phase connector mounting hole 111f and the communication connector mounting hole 111g. The three-phase connector mounting hole 111f penetrates the bottom plate 120 of the integrated trough shell 110 along the third direction Z, which facilitates the connection of the connector 177 for connecting the motor winding to the motor winding with a shorter line, and facilitates the power supply device 100 to output AC power to the motor winding with a shorter path and less power consumption, thereby driving the rotor and motor shaft of the motor 300 to rotate. The three-phase connector mounting hole 111f penetrates the bottom plate 120 of the integrated trough shell 110 along the third direction Z, which can fully utilize the space below the power supply device 100 along the third direction Z, facilitates the miniaturized layout of the power supply device 100, realizes the miniaturized layout of the power assembly 10, and optimizes the overall vehicle layout. The communication connector mounting hole 111g passes through the bottom plate 120 of the integrated grooved shell 110 along the third direction Z, which is beneficial for the first shielding cover 114a on the vehicle controller 104 and the communication connector mounting hole 111g to be stacked along the third direction Z. It is also beneficial for the power supply device 100 to be connected to the communication equipment downward along the third direction Z in the power assembly 10 without occupying additional space of the power assembly 10 along the first direction X and the second direction Y, which is beneficial for the miniaturized layout of the power assembly 10.

[0189] like Figure 10 and Figure 11 As shown, in one embodiment, along the first direction X, one mounting hole 111a of the three mounting holes 111a, 111b, 111c for fixing the connector 171 connected to the battery 30 is arranged between the two bottom plate mounting holes 111g, 111f.

[0190] In the embodiment of the present application, one of the three mounting holes 111a, 111b, and 111c for fixing the connector 171 to the battery 30 is a battery charge and discharge connector mounting hole 111a. Along the first direction X, the battery charge and discharge connector mounting hole 111a is arranged between the three-phase connector mounting hole 111f and the communication connector mounting hole 111g, which is conducive to the current in the battery 30 being output more smoothly to the motor winding through the bus capacitor 163 and the power module 164 in the motor controller 101 of the power supply device 100. The layout of the communication connector mounting hole 111g close to the peripheral side wall 112 of the integrated groove shell 110 is conducive to the arrangement of the power module 164 and the bus capacitor 163 in the motor controller 101, and is also conducive to connecting the vehicle controller 104 and the communication equipment with a shorter line, which is conducive to saving materials and reducing production costs.

[0191] like Figure 10 and Figure 12As shown, along the second direction Y, the distance between a bottom plate mounting hole 111g for fixing the vehicle controller 104 in the power supply device 100 (such as Figure 4 shown) for connecting the communication connector 178 for the on-vehicle load and any one of the three mounting holes 111a, 111b, 111c is less than the distance between a bottom plate mounting hole 111f for fixing the connector 177 for connecting the motor winding in the power supply device 100 and any one of the three mounting holes 111a, 111b, 111c.

[0192] Such as Figure 12 shown, along the second direction Y, the distance between the communication connector mounting hole 111g and any one of the three mounting holes 111a, 111b, 111c is L7, and the distance between the three-phase connector mounting hole 111f and any one of the three mounting holes 111a, 111b, 111c along the second direction Y is L8. L7 < L8. L8 is larger, providing sufficient space for the layout of the circuit board in the power supply device 100. L7 is smaller, making the communication connector 178 close to the peripheral side wall 112 of the integrated trough-shaped housing 110, so that there is enough area in the middle of the bottom plate 120 for fixing the electrical components in the power supply device 100. In the embodiment of the present application, L7 is smaller, making the communication connector 178 close to the peripheral side wall 112 of the integrated trough-shaped housing 110, thereby isolating the communication connector 178 from other electrical components in the power supply device 100 and avoiding wire interference of other electrical components on the communication connector 178.

[0193] In one embodiment, the integrated trough-shaped housing 110 further includes a liquid inlet 115 and a liquid outlet 116. Such as Figure 12 shown, the liquid inlet 115 and the liquid outlet 116 are connected through the internal flow channel of the integrated trough-shaped housing 110. The liquid inlet 115 is located on the peripheral side wall 112 of the integrated trough-shaped housing 110, and the liquid outlet 116 is located on the bottom plate 120 of the integrated trough-shaped housing 110. Among them, the opening direction of the liquid inlet 115 is away from the inner cavity of the integrated trough-shaped housing 110 along the first direction X. The opening direction of the liquid outlet 116 is away from the inner cavity of the integrated trough-shaped housing 110 along the third direction Z. Along the first direction X, the distance between the liquid inlet 115 and the liquid outlet 116 is greater than the distance between the two mounting holes 111a, 111c with the farthest interval among the three mounting holes 111a, 111b, 111c.

[0194] In the embodiment of the present application, the integrated trough shell 110 further includes a liquid inlet 115 and a liquid outlet 116, which facilitate the circulation of the coolant in the power supply device 100. The liquid inlet 115 is used to input the coolant from the vehicle cooling system, and the liquid outlet 116 is used to output the coolant after cooling and heating the power supply device 100. The coolant flows through the liquid inlet 115, the internal flow channel of the integrated trough shell 110, and the liquid outlet 116 in sequence. The liquid inlet 115 is located on the peripheral side wall 112 (112b) of the integrated trough shell 110, which facilitates the arrangement of the external cooling pipe connected to the liquid inlet 115. The liquid outlet 116 is located on the bottom plate 120 of the integrated trough shell 110, which facilitates the flow of the heated coolant out of the power supply device 100 in the direction of gravity, thereby reducing power loss.

[0195] In the embodiment of the present application, the opening of the liquid inlet 115 is oriented toward the inner cavity of the integrated groove shell 110 along the first direction X, which facilitates the connection of the liquid inlet 115 with the external cooling pipe, inputs the coolant into the power supply device 100, and cools the power supply device 100. The opening of the liquid outlet 116 is oriented toward the inner cavity of the groove shell along the third direction Z, which facilitates the coolant to flow out of the power supply device 100 from the liquid outlet 116 along the third direction Z under gravity, and also facilitates the external cooling pipe 116a (such as Figure 3 As shown in the figure, the power assembly 10 is arranged in the space along the third direction Z downward, which is beneficial to reducing the space occupied by the power assembly 10 in the third direction Z upward and the second direction Y.

[0196] like Figure 12 As shown, the distance between the liquid inlet 115 and the liquid outlet 116 along the first direction X is recorded as L9, and the distance between the two mounting holes 111a and 111c farthest apart among the three mounting holes 111a, 111b, and 111c along the first direction X is recorded as L10. That is, the distance between the power supply connector mounting hole 111c and the battery charging and discharging connector mounting hole 111a along the first direction X is L10. In the embodiment of the present application, L9>L10, which facilitates a longer path and longer flow time for the coolant when circulating in the power supply device 100, which helps the coolant better cool the power supply device 100 and improves cooling efficiency.

[0197] In one embodiment, the reducer end cover 700 is arranged on the same side as the three mounting holes 111a, 111b, and 111c. Figure 4 and Figure 11 The motor end cover 600 is arranged on the same side as two mounting holes 111e and 111d of the plurality of mounting holes 111.

[0198] In an embodiment of the present application, the connector 177 for connecting the motor winding in the general three-phase connector mounting hole 111f is connected to the motor winding connector led out from the motor end cover 600. In an embodiment of the present application, the motor end cover 600 is arranged on the same side as two mounting holes 111e and 111d among the multiple mounting holes 111, so that the connector 177 of the three-phase connector mounting hole 111f can be connected to the motor winding in the motor end cover 600 via a shorter path. The reducer end cover 700 is arranged on the same side as the three mounting holes 111a, 111b, and 111c, which is beneficial for the outer side of the reducer end cover 700 generally not being wired. The three mounting holes 111a, 111b, and 111c are arranged on the same side as the reducer end cover 700, so that the connectors in the three mounting holes 111a, 111b, and 111c are wired out from one side of the reducer end cover 700, making full use of the space outside the reducer end cover 700 without occupying too much space of the power assembly 10 along the first direction X, and also facilitating the regular arrangement of the power assembly 10.

[0199] In one embodiment, the lower circuit board 160 of the power supply device 100 includes a main area 161 and a secondary area 162, and the main area 161 and the secondary area 162 are adjacently arranged along the first direction X. Figure 7 、 Figure 8 、 Figure 9 and Figure 10 As shown, the integrated trough housing 110 includes a base plate 120. The base plate 120, the secondary region 162 of the lower circuit board 160, and the upper circuit board 150 are stacked sequentially along the third direction Z. The main region 161 is spaced apart from the upper circuit board 150 along the third direction Z. The main region 161 is used to support the busbar capacitor 163 and power module 164 of the motor controller 101, as well as multiple chips 144 of the vehicle controller 104. The secondary region 162 is used to support at least some of the power switches 142a of the DC converter 142. The upper circuit board 150 is used to support multiple power switches 141a, multiple inductors 141b, and multiple capacitors 141c of the on-board charger 141.

[0200] In the embodiment of the present application, the upper circuit board 150 and the lower circuit board 160 are both fixed to and supported by the integrated trough shell 110. This ensures a high degree of stability in the fixing of the upper circuit board 150 and the lower circuit board 160 to the integrated trough shell 110, thereby enhancing the overall structural strength of the power supply device 100 and making the electrical connection more stable. When the external environment applies external force to the power supply device 100, the upper circuit board 150 and the lower circuit board 160 will not easily move relative to the integrated trough shell 110, which facilitates the stable operation of the power supply device 100.

[0201] In the embodiment of the present application, the lower circuit board 160 includes a main area 161 and a secondary area 162. The main area 161 and the secondary area 162 are arranged adjacent to each other along the first direction X, so as to facilitate the arrangement and layout of the circuit components of the lower circuit board 160 along the first direction X.

[0202] In the embodiment of the present application, the base plate 120, the secondary region 162 of the lower circuit board 160, and the upper circuit board 150 are stacked sequentially along the third direction Z, allowing the electronic components of the power supply device 100 to be stacked along the third direction Z, thereby reducing the space occupied by the power supply device 100 in the first direction X and the second direction Y. The primary region 161 and the upper circuit board 150 are spaced apart along the third direction Z, which reduces the space occupied by the upper circuit board 150 and the lower circuit board 160 in the first direction X when laid flat. This allows for the integrated layout of multiple circuits, such as the motor controller 101, the vehicle controller 104, the DC converter 142, and the onboard charger 141, within a smaller space, facilitating the miniaturization of the power supply device 100.

[0203] like Figure 9 As shown, the upper circuit board 150 is used to carry multiple power switches 141a, multiple inductors 141b, and multiple capacitors 141c of the on-board charger 141, so that the on-board charger 141 is integrated into the upper circuit board 150. The on-board charger 141 can convert AC power input from an external power source into DC power for charging the battery 30.

[0204] It should be noted that in order to show the structural relationship more clearly, Figure 9 and Figure 10 In the embodiment, the lower surface of the lower circuit board 160 is separated from the electrical components it carries (such as the bus capacitor 163 and the power module 164). After assembly, the electrical components on the lower surface of the lower circuit board 160 are electrically connected to the lower circuit board 160. In one embodiment, the bus capacitor 163 is plugged into the lower surface of the main area 161. It should be understood that the lower surface of the upper circuit board 150 is separated from the electrical components it carries. After assembly, the electrical components on the lower surface of the upper circuit board 150 are electrically connected to the upper circuit board 150.

[0205] In one embodiment, the integrated channel housing 110 further includes a first side wall 112a, a second side wall 112b and a first shielding wall 113a. Figure 10 and Figure 11As shown, the upper surface of the base plate 120 along the third direction Z is used to secure the first side wall 112a, the second side wall 112b, and the first shielding wall 113a. The first side wall 112a, the first shielding wall 113a, and the second side wall 112b are sequentially spaced apart along the first direction X. The space between the first side wall 112a and the first shielding wall 113a accommodates the primary region 161. The space between the first shielding wall 113a and the second side wall 112b accommodates the upper circuit board 150. A secondary region 162 protrudes from the first shielding wall 113a toward the second side wall 112b along the first direction X.

[0206] In the embodiment of the present application, the first side wall 112a, the second side wall 112b, and the first shielding wall 113a are fixed to the upper surface of the bottom plate 120 of the integrated trough housing 110, and can be used to support and fix the upper circuit board 150 and the lower circuit board 160, thereby improving the stability of the power supply device 100. The first side wall 112a, the first shielding wall 113a, and the second side wall 112b are arranged in sequence along the first direction X, so that the first shielding wall 113a isolates the electrical components of the power supply device 100 along the first direction X, thereby achieving electrical shielding for the electrical components of the power supply device 100.

[0207] In the embodiment of the present application, the space between the first side wall 112a and the first shielding wall 113a is used to accommodate the main area 161. The first side wall 112a and the first shielding wall 113a constitute the installation area of the motor controller 101 and the vehicle controller 104. Figure 10 and Figure 11 As shown, the first shielding wall 113a can reduce the electrical interference of the electrical components carried by the upper circuit board 150 to the bus capacitor 163 and power module 164 of the motor controller 101 in the main area 161 and the multiple chips 144 of the vehicle controller 104, thereby improving the electromagnetic compatibility of the power supply device 100.

[0208] In an embodiment of the present application, the space between the first shielding wall 113a and the second side wall 112b is used to accommodate the upper circuit board 150. The first shielding wall 113a and the second side wall 112b constitute the installation area of the vehicle charger 141. The first shielding wall 113a can reduce the electrical interference of the motor controller 101 and the vehicle controller 104 of the lower circuit board 160 to the electrical components carried by the upper circuit board 150, thereby improving the electromagnetic compatibility of the power supply device 100.

[0209] Combine Figure 7 、 Figure 9 and Figure 11, the sub-region 162 protrudes from the first shielding wall 113a toward the second side wall 112b along the first direction X, which is conducive to the sub-region 162 being arranged below the upper circuit board 150 along the third direction Z, thereby improving the space utilization of the power supply device 100 and reducing the space occupied by the power supply device 100 along the first direction X.

[0210] Combine Figure 9 、 Figure 10 and Figure 11 Along the first direction X, the main region 161, the secondary region 162, and the second sidewall 112b are arranged in sequence, and the secondary region 162 is separated from the second sidewall 112b. The space between the secondary region 162 and the second sidewall 112b is used to accommodate multiple inductors 141b of the vehicle charger 141.

[0211] like Figure 10 As shown, along the first direction X, the main area 161, the secondary area 162, and the second side wall 112b are arranged in sequence, and the secondary area 162 is spaced apart from the second side wall 112b, providing space for the arrangement of multiple inductors 141b of the vehicle charger 141 in the power supply device 100.

[0212] In the embodiment of the present application, the space between the secondary region 162 and the second side wall 112b is used to accommodate multiple inductors 141b of the vehicle charger 141, which is conducive to fully utilizing the space within the accommodating cavity 140 of the power supply device 100, improving space utilization, and thereby improving the integration of the power supply device 100.

[0213] In one embodiment, the lower surface of the upper circuit board 150 is used to support multiple capacitors 141c in the on-board charger 141 and multiple magnetic components of the AC filter 145. Figure 9 、 Figure 10 and Figure 11 The integrated trough housing 110 further includes a third shielding wall 113c, which is secured to the upper surface of the base plate 120 along the third direction Z. Along the first direction X, the sub-region 162, the third shielding wall 113c, and the second sidewall 112b are sequentially spaced apart. The space between the sub-region 162 and the third shielding wall 113c accommodates the multiple capacitors 141c in the onboard charger 141. The space between the third shielding wall 113c and the second sidewall 112b accommodates the multiple magnetic components in the AC filter 145.

[0214] In the embodiment of the present application, the multiple capacitors 141c in the on-board charger 141 and the multiple magnetic components of the AC filter 145 are fixed to the bottom plate 120 of the integrated trough shell 110. The space between the upper circuit board 150 and the bottom plate 120 is used to accommodate the multiple capacitors 141c in the on-board charger 141 and the multiple magnetic components of the AC filter 145. The third shielding wall 113c is fixed to the upper surface of the bottom plate 120 of the integrated trough shell 110. The third shielding wall 113c can be used to support the upper circuit board 150, which helps to improve the fixing strength between the upper circuit board 150 and the integrated trough shell 110.

[0215] In the embodiment of the present application, the sub-region 162, the third shielding wall 113c, and the second sidewall 112b are sequentially spaced apart along the first direction X, so that the third shielding wall 113c isolates the electrical components of the power supply device 100 along the first direction X, thereby achieving electrical shielding for the electrical components of the power supply device 100. The third shielding wall 113c can reduce electrical interference from the sub-region 162 along the first direction X on the multiple magnetic components in the AC filter 145 between the third shielding wall 113c and the second sidewall 112b. It can also reduce electrical interference from the electrical components between the third shielding wall 113c and the second sidewall 112b on the DC converter 142 in the sub-region 162, thereby improving the electromagnetic compatibility of the power supply device 100. The spacing between the third shielding wall 113c and the second sidewall 112b facilitates providing installation space for the multiple magnetic components in the AC filter 145.

[0216] In the embodiment of the present application, the space between the secondary area 162 and the third shielding wall 113c is used to accommodate multiple capacitors 141c in the vehicle charger 141, which is conducive to fully utilizing the space on the lower surface of the upper circuit board 150 and improving the integration of the power supply device 100.

[0217] In the embodiment of the present application, the space between the third shielding wall 113c and the second side wall 112b is used to accommodate multiple magnetic components in the AC filter 145. The AC filter 145 includes an AC filter, which is used to filter out harmonics in AC power.

[0218] Combine Figure 9 、 Figure 10 and Figure 11 , along the second direction Y, the AC input connector mounting hole 111d is located between the third shielding wall 113c and the second side wall 112b (eg Figure 11 As shown), the AC power input from the connector 175 in the AC input mounting hole 111d can be directly filtered by the AC filter 145 between the third shielding wall 113c and the second side wall 112b, thereby reducing the line path and lowering the loss.

[0219] In one embodiment, the lower surface of the upper circuit board 150 is used to support multiple inductors 141b in the on-board charger 141 and multiple magnetic components of the DC filter 146. Figure 9 、 Figure 10 and Figure 11 The integrated trough housing 110 further includes a fourth shielding wall 113d, which is secured to the upper surface of the base plate 120 along the third direction Z. The first shielding wall 113a, the fourth shielding wall 113d, and the second sidewall 112b are sequentially spaced apart along the first direction X. The space between the fourth shielding wall 113d and the first shielding wall 113a accommodates the multiple magnetic components of the DC filter 146. The space between the fourth shielding wall 113d and the second sidewall 112b accommodates the multiple inductors 141b of the onboard charger 141.

[0220] In this embodiment of the present application, the multiple inductors 141b in the onboard charger 141 and the multiple magnetic components of the DC filter 146 are arranged along the second direction Y. The DC filter 146 is used to filter harmonics from the high-voltage DC power. The fourth shielding wall 113d supports the upper circuit board 150, enhancing the mounting stability between the upper circuit board 150 and the integrated channel housing 110. This improves the electrical connection stability of the power supply device 100 and ensures smooth operation of the power supply device 100.

[0221] In an embodiment of the present application, along the first direction X, the first shielding wall 113a, the fourth shielding wall 113d and the second side wall 112b are arranged in sequence, which divides the circuit in the power supply device 100 into more detailed partitions, which is beneficial to reducing the electrical interference between the modules on the power supply device 100, improving the electromagnetic compatibility of the power supply device 100, and ensuring the normal operation of the power supply device 100.

[0222] In this embodiment of the present application, space is provided between first shielding wall 113a and fourth shielding wall 113d for mounting the multiple magnetic components of DC filter 146. Multiple inductors 141b of onboard charger 141 are provided between fourth shielding wall 113d and second sidewall 112b. Fourth shielding wall 113d helps reduce electrical interference from the multiple magnetic components of DC filter 146 to the multiple inductors 141b of onboard charger 141. It also helps reduce interference from the multiple inductors 141b of onboard charger 141 to the multiple magnetic components of DC filter 146, thereby facilitating the smooth operation of power supply device 100.

[0223] Combine Figure 9 、 Figure 10 and Figure 11The DC input connector mounting hole 111b corresponds to the space between the first shielding wall 113a and the fourth shielding wall 113d, so that the DC power input by the DC input mounting hole 111b can be filtered by the DC filter 146 between the first shielding wall 113a and the fourth shielding wall 113d, reducing the line path and reducing loss.

[0224] Combine Figure 9 、 Figure 10 and Figure 11 The power supply connector mounting hole 111c corresponds to the area between the fourth shielding wall 113d and the second side wall 112b, so that the power supply connector 173 fixed by the power supply connector mounting hole 111c can be shielded by the fourth shielding wall 113b, thereby improving the electromagnetic compatibility of the power supply device 100.

[0225] In one embodiment, the integrated trough housing 110 further includes a fifth shielding wall 113e, and the upper surface of the bottom plate 120 along the third direction Z is used to fix the fifth shielding wall 113e. Figure 9 、 Figure 10 and Figure 11 Along the second direction Y, the fifth shielding wall 113e is spaced apart from the sub-region 162. The space between the fifth shielding wall 113e and the sub-region 162 is used to accommodate the multiple magnetic components of the DC converter 142. The area enclosed by the fifth shielding wall 113e, the fourth shielding wall 113d, and the first shielding wall 113a is used to accommodate the multiple magnetic components of the DC filter 146.

[0226] In the embodiment of the present application, the fifth shielding wall 113e is used to support the upper circuit board 150, which is beneficial to enhancing the installation stability of the upper circuit board 150 and the integrated groove shell 110, and is beneficial to improving the electrical connection stability of the power supply device 100, so that the power supply device 100 can operate smoothly.

[0227] In the embodiment of the present application, the fifth shielding wall 113e is spaced apart from the secondary region 162 along the second direction Y, thereby providing a mounting area for the multiple magnetic components of the DC converter 142. The space between the fifth shielding wall 113e and the secondary region 162 is used to accommodate the multiple magnetic components of the DC converter 142. This facilitates the conversion of high-voltage current into low-voltage DC power after passing through the multiple magnetic components of the DC converter 142, which can then be converted back into a lower voltage current for transmission to the low-voltage load.

[0228] In an embodiment of the present application, multiple magnetic components of the DC filter 146 are accommodated in an area jointly enclosed by the fifth shielding wall 113e, the fourth shielding wall 113d, and the first shielding wall 113a, which is beneficial to reducing the electrical interference of the motor controller 101 circuit in the main area 161 of the lower circuit board 160, the DC converter 142 and the transformer 141d of the upper circuit board 150 to the DC filter 146, thereby allowing the DC filter 146 to operate normally and improving the electromagnetic compatibility of the power supply device 100.

[0229] In one embodiment, the integrated trough housing 110 further includes a sixth shielding wall 113f, and the upper surface of the bottom plate 120 along the third direction Z is used to fix the sixth shielding wall 113f, and the sixth shielding wall 113f extends along the first direction X. Figure 9 、 Figure 10 and Figure 11 Along the first direction X, the fourth shielding wall 113d, the sixth shielding wall 113f, and the second side wall 112b are arranged in sequence. Along the second direction Y, the sub-region 162, the fifth shielding wall 113e, and the sixth shielding wall 113f are arranged in sequence. The sixth shielding wall 113f is used to divide the space between the fourth shielding wall 113d and the second side wall 112b into two regions 126 and 127 arranged along the second direction Y. Of the two regions 126 and 127, the region 126 closer to the sub-region 162 is used to accommodate multiple inductors 141b of the onboard charger 141, and the other region 127 is used to accommodate the transformer 141d and compressor power connector 173 of the onboard charger 141.

[0230] In an embodiment of the present application, the upper surface of the base plate 120 along the third direction Z is used to fix the sixth shielding wall 113f, and the sixth shielding wall 113f extends along the third direction Z. The sixth shielding wall 113f can be used to support the upper circuit board 150, which is beneficial to enhancing the installation stability of the upper circuit board 150 and the integrated groove shell 110, and is beneficial to improving the electrical connection stability of the power supply device 100, so that the power supply device 100 can operate smoothly.

[0231] In the embodiment of the present application, along the first direction X, the fourth shielding wall 113d, the sixth shielding wall 113f and the second side wall 112b are arranged in sequence at intervals. The fourth shielding wall 113d can electrically shield the DC filter 146 from the transformer 141d and the multiple inductors 141b of the on-board charger 141. The sixth shielding wall 113f is arranged between the fourth shielding wall 113d and the second side wall 112b, and the length direction of the sixth shielding wall 113f is parallel to the first direction X. This is beneficial for electrically shielding the transformer 141d and the multiple inductors 141b of the on-board charger 141 arranged along the second direction Y, which is beneficial for reducing electrical interference between the DC filter 146, the transformer 141d, and the multiple inductors 141b of the on-board charger 141, so that these modules can operate more smoothly.

[0232] In the embodiment of the present application, along the second direction Y, the sub-region 162, the fifth shielding wall 113e and the sixth shielding wall 113f are arranged in sequence. Along the second direction Y, the sub-region 162 and the fifth shielding wall 113e are spaced apart to provide an installation area for the DC converter 142, and the fifth shielding wall 113e and the sixth shielding wall 113f are spaced apart to provide more installation space for the installation area of multiple magnetic components in the AC filter 145 between the multiple capacitors 141c of the vehicle charger 141 and the sixth shielding wall 113f.

[0233] In the embodiment of the present application, the sixth shielding wall 113f is used to separate the space between the fourth shielding wall 113d and the second side wall 112b into two areas 126 and 127 arranged along the second direction Y, which is conducive to electrically shielding the multiple inductors 141b of the on-board charger 141 from the transformer 141d. Of the two areas 126 and 127, the area 126 closer to the secondary area 162 is used to accommodate the multiple inductors 141b of the on-board charger 141, and the other area 127 is used to accommodate the transformer 141 of the on-board charger 141. The transformer 141d and the compressor power supply connector 173, that is, the sixth shielding wall 113f, can reduce the electrical interference of the multiple inductors 141b of the vehicle charger 141 on the transformer 141d of the vehicle charger 141 and the compressor power supply connector 173. At the same time, it can also reduce the electrical interference of the transformer 141d and the compressor power supply connector 173 of the vehicle charger 141 on the multiple inductors 141b of the vehicle charger 141, thereby improving the electromagnetic compatibility of the power supply device 100 and ensuring the smooth operation of the power supply device 100.

[0234] In one embodiment, the power supply device 100 further includes a first shielding cover 114a, which is used to shield at least part of the multiple chips 144 of the vehicle controller 104. Figure 9 、 Figure 10 and Figure 11Along the third direction Z, the bottom plate 120, the lower circuit board 160 and the first shielding cover 114a are stacked in sequence. Along the first direction X, the first side wall 112a is adjacent to the first shielding cover 114a.

[0235] In the embodiment of the present application, the first shielding cover 114a is fixedly connected to at least part of the multiple chips 144 of the vehicle controller 104, which is conducive to enhancing the stability of the vehicle controller 104 in the power supply device 100. The first shielding cover 114a can shield the electrical influence of the motor controller 101 of the lower circuit board 160 on the vehicle controller 104, improve the electromagnetic compatibility of the power supply device 100, and make the vehicle controller 104 (such as Figure 4 The communication work is carried out smoothly.

[0236] In the embodiment of the present application, along the third direction Z, the base plate 120, the lower circuit board 160 and the first shielding cover 114a are stacked in sequence, that is, at least multiple chips 144 of the vehicle controller 104 are in contact with the lower circuit board 160, which is beneficial for the control signal of the vehicle controller 104 to be transmitted from the communication connector 178 installed at the communication connector mounting hole 111g to the chip 144 of the vehicle controller 104, and then transmitted to the lower circuit board 160 to control the power supply device 100.

[0237] In the embodiment of the present application, the first side wall 112a and the first shielding cover 114a are arranged adjacent to each other along the first direction X, which is conducive to setting the communication connector mounting hole 111g close to the first side wall 112a, and is conducive to the electrical connection of the communication connector 178 with the load on the entire vehicle.

[0238] In one embodiment, the power supply device 100 further includes a second shielding cover 114b, which is used to shield multiple magnetic components in the AC filter 145. Figure 9 、 Figure 10 and Figure 11 Along the third direction Z, the bottom plate 120, the upper circuit board 150 and the second shielding cover 114b are stacked in sequence. Along the first direction X, the second side wall 112b, the second shielding cover 114b and the third shielding wall 113c are arranged adjacent to each other.

[0239] In the embodiment of the present application, the second shielding cover 114b is fixedly connected to the third shielding wall 113c and the second side wall 112b, which can enhance the structural stability of the power supply device 100. At the same time, the area enclosed by the third shielding wall 113c, the second shielding cover 114b and the second side wall 112b is used to install multiple magnetic components in the AC filter 145, which is beneficial to reduce the electrical interference of the multiple capacitors 141c and the multiple inductors 141b of the vehicle charger 141 to the multiple magnetic components in the AC filter 145.

[0240] Combine Figure 9 、 Figure 10 and Figure 11 The sub-region 162 is also used to carry multiple magnetic components of the low-voltage filter 147 , and the space between the sub-region 162 and the upper circuit board 150 is used to accommodate the multiple magnetic components of the low-voltage filter 147 .

[0241] In the embodiment of the present application, the sub-region 162 not only carries at least part of the power switch tube 142a of the DC converter 142, but also carries multiple magnetic devices of the low-voltage filter 147, which is conducive to integrating the DC converter 142 and the low-voltage filter 147 on the lower circuit board 160, so that the bus capacitor 163 and the power module 164 of the vehicle controller 104, the multiple chips 144 of the vehicle controller 104 and the DC converter 142, and the low-voltage filter 147 share a lower circuit board 160, which is conducive to reducing the number of circuit boards used and improving the integration of the power supply device 100.

[0242] In an embodiment of the present application, the space between the secondary region 162 and the upper circuit board 150 is used to accommodate multiple magnetic components of the low-voltage filter 147, which is beneficial to improving the space utilization inside the power supply device 100 and enhancing the integration between the modules in the power supply device 100.

[0243] In one embodiment, the power supply device 100 further includes a third shielding cover 114c and a 12V copper busbar 117. Figure 9 、 Figure 10 and Figure 11 Along the first direction X, the main area 161, the third shielding cover 114c, and the secondary area 162 are arranged adjacent to each other in sequence.

[0244] In the embodiment of the present application, the third shielding cover 114c is a 12V shielding cover. The third shielding cover 114c extends along the second direction Y and is perpendicular to the lower circuit board 160. This helps provide support for the cover 130 of the power supply device 100 and helps improve the installation stability of the power supply device 100. Along the first direction X, the third shielding cover 114c is located between the main area 161 and the secondary area 162 of the lower circuit board 160, which can reduce electrical interference between the main area 161 and the secondary area 162. The third shielding cover 114c is used to shield the multiple magnetic components of the low-voltage filter 147. The 12V copper busbar 117 is used to transmit the current in the low-voltage filter 147 to the low-voltage load. The third shielding cover 114c and the third shielding wall 113c form a shielding area for the low-voltage filter 147, which is conducive to the smooth operation of the low-voltage filter 147.

[0245] In one embodiment, the power supply device 100 further includes a board-to-board connector 118 for connecting the upper circuit board 150 and the lower circuit board 160. Figure 9 、 Figure 10 and Figure 11 The board-to-board connector 118 is used to achieve communication connection between the upper circuit board 150 and the lower circuit board 160, which is conducive to connecting the upper circuit board 150 and the lower circuit board 160 and promoting the deep integration of the power supply device 100. At the same time, the power supply device 100 also has many blade structures for electrically connecting the upper circuit board 150 and the lower circuit board 160.

[0246] Combine Figure 9 、 Figure 10 and Figure 11 The upper surfaces of the third shielding wall 113c, the fourth shielding wall 113d, the fifth shielding wall 113e, and the sixth shielding wall 113f along the third direction Z are adhered to the lower surface of the upper circuit board 150, which is conducive to achieving a better shielding effect for the circuits in the upper circuit board 150.

[0247] In one embodiment, the integrated trough shell 110 further includes a third side wall 112c, a second shielding wall 113b and a fourth side wall 112d, and the upper surface of the bottom plate 120 along the third direction Z is used to fix the third side wall 112c, the second shielding wall 113b and the fourth side wall 112d. Figure 9 、 Figure 10 and Figure 11 Along the second direction Y, the third side wall 112c, the second shielding wall 113b, and the fourth side wall 112d are sequentially spaced apart. The space between the third side wall 112c and the second shielding wall 113b is used to accommodate a portion of the copper busbars of the power distribution device 103. The space between the second shielding wall 113b and the fourth side wall 112d is used to accommodate the main area 161.

[0248] like Figure 4 As shown, the first side wall 112a, the second side wall 112b, the third side wall 112c, the fourth side wall 112d, the bottom plate 120 and the cover plate 130 together enclose the accommodating cavity 140 of the integrated groove shell 110, and the accommodating cavity 140 is used to accommodate the upper circuit board 150 and the lower circuit board 160.

[0249] In the embodiment of the present application, the second shielding wall 113b is fixed to the upper surface of the base plate 120 along the third direction Z. The second shielding wall 113b supports the power supply device 100, which is beneficial to improving the installation stability of the power supply device 100 and ensuring the smooth operation of the power supply device 100.

[0250] In an embodiment of the present application, the power distribution device 103 converts the high-voltage direct current output by the battery 30 into the direct current voltage or alternating current required by the load during operation to supply power to the load. Along the second direction Y, the third side wall 112c, the second shielding wall 113b, and the fourth side wall 112d are arranged at intervals in sequence. An installation area is provided between the third side wall 112c and the second shielding wall 113b for part of the copper busbars of the power distribution device 103, and an installation area is provided between the second shielding wall 113b and the fourth side wall 112d for the main area 161 of the lower-layer circuit board 160. At the same time, the second shielding wall 113b electrically shields part of the copper busbars of the power distribution device 103 in the power supply device 100 from the bus capacitors 163 and power modules 164 of the motor controller 101 in the main area 161 along the second direction Y, which is beneficial to reducing the electrical interference during the operation of part of the copper busbars of the power distribution device 103, the bus capacitors 163 of the motor controller 101, and the power modules 164, and improving the electromagnetic compatibility of the power supply device 100.

[0251] Combined with Figure 9 , Figure 10 and Figure 11 , the battery connection hole 111a and the second shielding wall 113b are arranged opposite to each other along the second direction Y, so that the battery connection 171 fixed by the battery connection hole 111a can be connected to part of the copper busbars of the power distribution device 103 between the second shielding wall 113b and the third side wall 112c, shortening the connection line between the battery connection 171 and part of the copper busbars of the power distribution device 103 and reducing power loss.

[0252] As Figure 7 and Figure 8 shown, along the first direction X, the length of the sub-region 162 is less than the length of the main region 161. Along the second direction Y, the length of the sub-region 162 is less than the length of the main region 161. Along the second direction Y, the sides of the main region 161 and the sub-region 162 facing away from the third side wall 112c are adjacent to the fourth side wall 112d.

[0253] In an embodiment of the present application, along the first direction X, the length of the sub-region 162 is denoted as L11, and the length of the main region 161 is denoted as L12, and L11 < L12. As Figure 7 shown, along the first direction X, the smaller length of the sub-region 162 is beneficial for the sub-region 162 to be arranged below the upper-layer circuit board 150 along the third direction Z without occupying too much space in the power supply device 100 along the first direction X. The smaller sub-region 162 along the first direction X provides sufficient space for the installation of multiple magnetic devices in the AC filter 145 between the sub-region 162 and the second side wall 112b.

[0254] As Figure 8As shown, along the second direction Y, the length of the sub-region 162 is denoted as L13, and the length of the main region 161 is denoted as L14, where L13 < L14. As Figure 9 shown, the sub-region 162 with a smaller dimension along the second direction Y provides sufficient installation space for multiple magnetic devices in the DC filter 146, multiple power switching transistors 141a and multiple inductors 141b of the on-vehicle charger 141, some power switching transistors 142a of the DC converter 142, the transformer 141d of the on-vehicle charger 141, and the compressor power supply connection member 173.

[0255] In the embodiment of the present application, the sides of the main region 161 and the sub-region 162 facing away from the third sidewall 112c along the second direction Y are arranged adjacent to the fourth sidewall 112d, which is beneficial for the circuit on the lower layer circuit board 160 to more quickly transfer to the three-phase connection member mounting hole 111f near the fourth sidewall 112d, thereby transmitting the current in the power supply device 100 to the windings of the motor 300 and driving the rotor and the motor shaft of the motor 300 to rotate. It is also beneficial for the circuit on the lower layer circuit board 160 to more quickly transfer to the low-voltage load connection member mounting hole 111e near the fourth sidewall 112d to supply power to the low-voltage load. At the same time, it is also beneficial for saving the material of the lower layer circuit board 160 and reducing the production cost.

[0256] In one embodiment, the upper layer circuit board 150 includes a notch 151, and the notch 151 includes an opening facing the third sidewall 112c along the second direction Y and an opening facing the main region 161 along the first direction X. As Figure 5 shown, the space between the side of the notch 151 and the third sidewall 112c is used to accommodate a part of the copper busbar of the DC power supply connection member 172 and the power distribution device 103.

[0257] In the embodiment of the present application, the notch 151 of the upper layer circuit board 150 provides an installation space for the DC power supply connection member 172 at the DC power supply connection member mounting hole 111b of the integrated trough-shaped shell 110. The notch 151 includes an opening facing the third sidewall 112c along the second direction Y and an opening facing the main region 161 along the first direction X. The third sidewall 112c and the opening of the notch 151 facing the third sidewall 112c along the second direction Y provide sufficient installation space for the DC power supply connection member 172 in the second direction Y, and the opening facing the main region 161 along the first direction X and a part of the copper busbar of the power distribution device 103 provide sufficient installation space for the DC power supply connection member 172 in the first direction X.

[0258] In the embodiment of the present application, the space between the side edge of the opening of the notch 151 and the third side wall 112c is used to accommodate the DC power connector 172 and a portion of the copper busbar of the power distribution device 103, which facilitates the DC power connector 172 to be installed more closely to the DC power connector mounting hole 111b that passes through the third side wall 112c along the second direction Y. The portion of the copper busbar of the power distribution device 103 also facilitates connecting the DC power connector 172 to the connector 171 of the battery 30 with less material, which facilitates the DC power connector 172 to more quickly transmit the high-voltage current from the external power source to the battery 30, thereby charging the battery 30.

[0259] In one embodiment, the motor end cover 600 is arranged on the same side as the fourth side wall 112d of the integrated channel housing 110. Figure 4 As shown, the reducer end cover 700 is arranged on the same side as the third side wall 112 c of the integrated channel housing 110 .

[0260] In the embodiment of the present application, the motor end cover 600 is arranged on the same side as the fourth side wall 112d of the integrated grooved shell 110, which is beneficial for the motor controller 101 near the fourth side wall 112d to transmit alternating current to the winding of the motor 300, driving the rotor and motor shaft of the motor 300 to rotate. At the same time, it is also beneficial for the low-voltage filter 147 near the fourth side wall 112d to transmit the low-voltage current to the low-voltage load of the entire vehicle in a shorter path for operation, which is beneficial to reduce power loss. The reducer end cover 700 is arranged on the same side as the third side wall 112c of the integrated groove shell 110. The third side wall 112c is provided with a battery charge and discharge connector mounting hole 111a, a DC power connector mounting hole 111b, and a power supply connector mounting hole 111c. This is conducive to the arrangement of the battery charge and discharge connector 171, the DC power connector 172 and the compressor connector 173 close to the third side wall 112c above the reducer 200, and is conducive to the dispersed arrangement of the motor controller 101 and the low-voltage filter 147 arranged above the motor 300, so that the arrangement of the components in the power supply device 100 is more regular.

[0261] In one embodiment, the integrated channel shell 110 further includes a support column 128. Figure 5 As shown, the support column 128 is used to fix with two bolts 131 on the cover plate 130, which can enhance the stability of the power supply device 100, reduce noise radiation, and improve the NVH performance of the vehicle. Figure 5 As shown, the shielding wall is connected to the support column 128 to provide structural strength for the false cavity shielding wall.

[0262] In one embodiment, the first shielding wall 113a, the fourth shielding wall 113d and the fifth shielding wall 113e enclose a high-voltage DC common-mode inductor filter area 106. Figure 9 、 Figure 10 and Figure 11An AC common-mode inductor filter region 107 is formed between the third shielding wall 113c and the second sidewall 112b, and a 12V power filter region 108 is formed between the third shielding cover 114c and the third shielding wall 113c. This effectively reduces electrical interference between these regions, improves the electromagnetic compatibility of the power supply device 100, and ensures stable operation of the power supply device 100.

[0263] In one embodiment, the electrical components in the power supply device 100 are directly placed into the inner cavity through the notch of the integrated slotted shell 110, and the base plate 120 is installed from bottom to top. The main areas 161 of the upper circuit board 150 and the lower circuit board 160 are laid flat along the first direction X, and the secondary areas 162 of the upper circuit board 150 and the lower circuit board 160 are stacked along the third direction Z. There is no need to flip the circuit board during the installation process, the assembly is simple, and the installation process is smooth.

[0264] In one embodiment, the upper circuit board 150 and the sub-region 162 of the lower circuit board 160 are stacked, and the DC converter 142 uses the sub-region 162 of the lower circuit board 1620 and is arranged below the upper circuit board 160, further improving the integration of the circuit boards.

[0265] Figure 13 This is a bottom view of the integrated channel housing 110 provided in an embodiment of the present application. Figure 14 for Figure 13 AA cross-section diagram, Figure 15 This is a schematic diagram of the partial structure of the integrated channel shell 110 provided in an embodiment of the present application. Figure 16 A schematic structural diagram of the first flow channel and the second flow channel provided in an embodiment of the present application.

[0266] like Figure 13 As shown, in one embodiment, the internal flow channel of the bottom plate 120 of the integrated groove shell 110 includes a first flow channel 181 and a second flow channel 191. The first flow channel 181 is used to connect the second flow channel 191 and the heat sink 105. The first flow channel 181 and the second flow channel 191 are arranged along the first direction X. The first flow channel 181, the upper circuit board 150 and the heat sink 105 are stacked in sequence along the third direction Z (combined with Figure 5 ), the first flow channel 181 and the heat sink 105 are used to cool the electrical components of the vehicle charger 141 carried by the upper circuit board 150. The second flow channel 191 and the lower circuit board 160 are stacked along the third direction Z, and the second flow channel 191 is used to cool the power module 164 of the motor controller 101 carried on the lower surface of the lower circuit board 160.

[0267] In the embodiment of the present application, the integrated groove shell 110 is used to fix the heat sink 105, the upper circuit board 150 and the lower circuit board 160 (such as Figure 5As shown in FIG1 , the heat sink 105, the upper circuit board 150, and the lower circuit board 160 are supported by the integrated trough shell 110, so that the heat sink 105, the upper circuit board 150, and the lower circuit board 160 are fixed to the integrated trough shell 110 with high stability, making the overall structural strength of the power supply device 100 stronger and the electrical connection more stable. In one embodiment, the heat sink 105 is a brazed heat sink 105. When the external environment applies external force to the power supply device 100, the heat sink 105, the upper circuit board 150, and the lower circuit board 160 will not easily move relative to the integrated trough shell 110, which is conducive to the power supply device 100 operating in a stable state.

[0268] In the embodiment of the present application, the power supply device 100 generates a large amount of heat during operation, which needs to be dissipated to protect the normal operation of the components in the power supply device 100. Figure 5 and Figure 13 As shown, the base plate 120 includes a first flow channel 181 and a second flow channel 191. The first flow channel 181 and the second flow channel 191 are used to cool the electrical components carried by the upper circuit board 150 and the lower circuit board 160 in the power supply device 100. The first flow channel 181 connects the second flow channel 191 and the heat sink 105, facilitating the flow of coolant within the power supply device 100. In one embodiment, after entering the power supply device 100, the coolant passes through the heat sink 105, the first flow channel 181, and the second flow channel 191 in sequence, achieving serial flow and cooling of the coolant within the power supply device 100. In one embodiment, after entering the power supply device 100, a portion of the coolant flows through the heat sink 105 and the first flow channel 181 to the second flow channel 191, while the remaining portion flows directly from the first flow channel 181 to the second flow channel 191 without passing through the heat sink 105. The two portions of coolant merge in the second flow channel 191, achieving parallel flow and cooling of the coolant within the power supply device 100.

[0269] like Figure 13 As shown, the first flow channel 181 and the second flow channel 191 are arranged along the first direction X. Figure 5 As shown, the main areas 161 of the upper circuit board 150 and the lower circuit board 160 are also arranged along the first direction X, which is beneficial for the first flow channel 181 and the second flow channel 191 to cool the lower circuit board 160 and the upper circuit board 150 .

[0270] In an embodiment of the present application, the second flow channel 191 is used to cool the power module 164 of the motor controller 101 carried on the lower surface of the lower circuit board 160. The second flow channel 191 and the lower circuit board 160 are stacked along the third direction Z, so that the second flow channel 191 covers the installation area of the power module 164 of the motor controller 101 installed on the base plate 120, so that the second flow channel 191 can cool the power module 164 of the motor controller 101 as much as possible, thereby improving the cooling efficiency.

[0271] In one embodiment, the lower surface of the power module 164 of the motor controller 101 has a heat dissipation structure 164a (eg Figure 15 As shown, the heat dissipation structure 164a is located within the second flow channel 190 and can be immersed in the coolant. When the coolant in the first flow channel 180 flows through the second flow channel 190, it can more quickly remove heat from the power module 164, thereby improving the cooling efficiency of the motor controller 101. In one embodiment, the heat dissipation structure 164a includes a plurality of heat dissipation teeth distributed at intervals.

[0272] Combine Figure 9 and Figure 13 The first flow channel 181 is used to cool at least one of the transformer 141d, multiple inductors 141b, and multiple capacitors 141c of the on-board charger 141 carried on the lower surface of the upper circuit board 150, and the heat sink 105 is used to cool the multiple power switch tubes 141a of the on-board charger 141 carried on the upper surface of the upper circuit board 150.

[0273] In the embodiment of the present application, the first flow channel 181 is located on the base plate 120, and the transformer 141d, multiple inductors 141b and multiple capacitors 141c of the on-board charger 141 are arranged in sequence along the second direction Y on the lower surface of the upper circuit board 150. The first flow channel 181 is used to cool at least one of the transformer 141d, multiple inductors 141b and multiple capacitors 141c of the on-board charger 141 carried on the lower surface of the upper circuit board 150, so that at least one of the transformer 141d, multiple inductors 141b and multiple capacitors 141c of the on-board charger 141 can be cooled in time when the on-board charger 141 is working, which is beneficial to reducing the temperature inside the power supply device 100 and ensuring the normal operation of the power supply device 100.

[0274] In an embodiment of the present application, the radiator 105 is used to cool the multiple power switch tubes 141a of the vehicle charger 141 carried on the upper surface of the upper circuit board 150. The multiple power switch tubes 141a of the vehicle charger 141 are closer to the radiator 105 than the first flow channel 181, which is beneficial for the radiator 105 to cool the multiple power switch tubes 141a of the vehicle charger 141, thereby helping to reduce the temperature inside the power supply device 100 and ensure the normal operation of the power supply device 100.

[0275] In the embodiment of the present application, the first flow channel 181 and the radiator 105 are respectively used to cool the lower surface of the upper circuit board 150 and the electrical components carried by the lower surface, and also make some electrical components of the upper circuit board 150 stacked between the upper circuit board 150 and the bottom plate, and some electrical components stacked between the upper circuit board 150 and the radiator 105, which not only improves the cooling and heat dissipation effect of the electrical components, but also can make full use of the space on the upper and lower surfaces of the upper circuit board 150, making the component arrangement more compact, the heat dissipation and cooling area more concentrated, and the heat dissipation effect better, thereby improving the power density and working efficiency of the power supply device 100.

[0276] In one embodiment, the lower circuit board 160 includes a main area 161 and a secondary area 162. Figure 9 and Figure 13 The lower surface of the main region 161 is used to secure the power module 164 of the motor controller 101, and the secondary region 162 is used to secure at least some of the power switches 142a of the DC converter 142. The main region 161 and the secondary region 162 are arranged along a first direction X. The first flow channel 181, the secondary region 162, and the upper circuit board 150 are stacked along a third direction Z. The second flow channel 191 and the main region 161 are stacked along the third direction Z.

[0277] In the embodiment of the present application, the primary region 161 and the secondary region 162 are arranged along a first direction X, and the first flow channel 181 and the second flow channel 191 are arranged along the first direction X. This allows the first flow channel 181 and the second flow channel 191 to jointly cool the lower circuit board 160, thereby improving the cooling efficiency of the lower circuit board 160. The first flow channel 181, the secondary region 162, and the upper circuit board 150 are stacked along a third direction Z, allowing the first flow channel 181 to cool not only the upper circuit board 150 but also the secondary region 162 of the lower circuit board 160, thereby improving the cooling efficiency of the coolant on the power supply device 100. The second flow channel 191 and the primary region 161 are stacked along the third direction Z, facilitating the second flow channel 191 to cool the primary region 161 of the lower circuit board 160, thereby ensuring the normal operation of the electrical components of the lower circuit board 160.

[0278] In one embodiment, the bottom plate 120 includes a first flow channel groove 180 and a second flow channel groove 190. Figure 14 and Figure 16 As shown, the first flow channel groove 180 is recessed along the third direction Z from the lower surface of the base plate 120 toward the upper circuit board 150, and the first flow channel groove 180 is used to form a first flow channel 181. The second flow channel groove 190 is recessed along the third direction Z from the upper surface of the base plate 120 away from the lower circuit board 160, and the second flow channel groove 190 is used to form a second flow channel 191.

[0279] In the embodiment of the present application, the cooling liquid circulates in the first flow channel 180 and the second flow channel 190 of the bottom plate 120 to dissipate heat in the power supply device 100. Figure 14 and Figure 16 As shown, the first flow channel groove 180 is recessed along the third direction Z from the lower surface of the bottom plate 120 toward the upper circuit board 150, facilitating the formation of a first flow channel 181 on the lower surface of the bottom plate 120. This ensures that the arrangement of the first flow channel 181 does not affect the installation and arrangement of electrical components in the upper circuit board 150 and the secondary region 162 of the lower circuit board 160 in the power supply device 100. The second flow channel groove 190 is recessed along the third direction Z from the upper surface of the bottom plate 120 away from the lower circuit board 160, facilitating the formation of a second flow channel 191 on the upper surface of the bottom plate 120. The second flow channel 191 is formed on the upper surface of the bottom plate 120, closer to the lower circuit board 160, facilitating cooling of the lower circuit board 160 by the second flow channel 191.

[0280] In one embodiment, the first flow channel 180 on the lower surface of the bottom plate 120 of the integrated grooved housing 110 is sealed with a first flow channel 181 by friction stir welding or a dispensing process, thereby enabling the coolant to circulate on the lower surface of the bottom plate 120 of the power supply device 100. This also helps prevent the coolant from leaking into the motor 300 and reducer 200 of the power assembly 10, thereby affecting the normal operation of the power assembly 10. In one embodiment, a sealing plate covers the notch of the first flow channel 180. The sealing plate and the first flow channel 180 enclose and form the first flow channel 181, wherein the sealing plate can be fixed to the notch of the first flow channel 180 by dispensing glue.

[0281] like Figure 16 As shown, the power module 164 in the motor controller 101 covers the notch of the second flow channel 190. The bottom of the power module 164 has a heat dissipation structure 164a. The heat dissipation structure 164a is accommodated in the second flow channel 190. The bottom wall of the power module 164 and the second flow channel 190 enclose a second flow channel 191. In one embodiment, the bottom wall of the power module 164 and the bottom plate portion around the notch of the second flow channel 190 can be sealed and fixed by welding.

[0282] like Figure 16As shown, the distance between the bottom 182 of the first flow channel groove 180 and the radiator 105 along the third direction Z is less than the distance between the bottom 192 of the second flow channel groove 190 and the radiator 105.

[0283] In the embodiment of the present application, the distance between the bottom 182 of the first flow channel groove 180 and the radiator 105 along the third direction Z is denoted as L15, and the distance between the bottom 192 of the second flow channel groove 190 and the radiator 105 along the third direction Z is denoted as L16, and L15 < L16. As Figure 15 shown, the first flow channel groove 180 is located on the lower surface of the bottom plate 120, and L15 is smaller. The coolant in the radiator 105 and the first flow channel 181 is closer to the upper circuit board 150, which is beneficial to cooling the upper circuit board 150. The second flow channel groove 190 is located on the upper surface of the bottom plate 120, and L16 is larger, which provides a larger space for forming the second flow channel 191 in the second flow channel groove 190. More coolant flows through the second flow channel 191, thereby better cooling the lower circuit board 160. At the same time, it also provides more space for installing the electrical components of the lower circuit board 160. Figure 15 The radiator 105, the first flow channel groove 180, and the second flow channel groove 190 in

[0284] In the embodiment of the present application, the bottom 182 of the first flow channel groove 180 and the bottom 192 of the second flow channel groove 190 are offset along the third direction Z. Compared with the non-offset scheme, this scheme can reduce the length of the first flow channel groove 180 and the second flow channel groove 190 along the third direction Z together, and further reduce the length of the power supply device 100 along the third direction Z, which is beneficial to the miniaturization of the power supply device 100.

[0285] As Figure 13 shown, the length of the first flow channel groove 180 along the first direction X is greater than the length of the second flow channel groove 190 along the first direction X, and the length of the first flow channel groove 180 along the second direction Y is greater than the length of the second flow channel groove 190 along the second direction Y.

[0286] In the embodiment of the present application, the length of the first flow channel groove 180 along the first direction X is denoted as L17, and the length of the second flow channel groove 190 along the first direction X is denoted as L18, and L17 > L18. As Figure 13 shown, L17 is larger, and the surface area of the first flow channel 181 adjacent to the electrical components in the upper circuit board 150 is larger. More coolant flows through the first flow channel 181 in the first flow channel groove 180, which is beneficial to improving the cooling efficiency of the first flow channel 181 for the upper circuit board 150. L18 is smaller, which is convenient for providing more installation space for multiple chips 144 of the vehicle controller 104.

[0287] In the embodiment of the present application, the length of the first flow channel groove 180 along the second direction Y is recorded as L19, and the length of the second flow channel groove 190 along the second direction Y is recorded as L20, and L19>L20. Figure 13 As shown, L19 is larger, which facilitates the first flow channel 181 to dissipate more heat for the electrical components of the upper circuit board 150 along the second direction Y, thereby improving the cooling efficiency of the upper circuit board 150. Because the second flow channel groove 190 is provided on the upper surface of the base plate 120, L20 is smaller, providing more installation space for the bus capacitor 163 of the motor controller 101 and the power distribution device 103.

[0288] In one embodiment, the groove wall 195 of the second flow channel groove 190 includes a connecting hole 193, and the connecting hole 193 is used to connect with the first flow channel groove 180. Figure 14 、 Figure 15 and Figure 16 As shown, a portion of the groove peripheral wall 194 of the second flow channel groove 190 is adjacent to a portion of the groove peripheral wall 183 of the first flow channel groove 180 along the first direction X. The communication hole 193 penetrates the adjacent portions of the groove peripheral wall 194 of the second flow channel groove 190 and the portions of the groove peripheral wall 183 of the first flow channel groove 180 along the first direction X.

[0289] In the embodiment of the present application, the connecting hole 193 connects the first flow channel groove 180 and the second flow channel groove 190, so that the coolant in the first flow channel 181 can flow from the connecting hole 193 into the second flow channel 191, which is beneficial to the circulation of the coolant in the power supply device 100 and is beneficial to improving the integration degree of the power supply device 100.

[0290] like Figure 16 As shown, part of the groove peripheral wall 194 of the second flow channel groove 190 is adjacent to part of the groove peripheral wall 183 of the first flow channel groove 180 along the first direction X, making it possible to open a connecting hole 193 in the groove peripheral wall 195 of the second flow channel groove 190 to connect the second flow channel groove 190 with the first flow channel groove 180.

[0291] In the embodiment of the present application, the connecting hole 193 passes through the partial groove peripheral wall 194 of the adjacent second flow channel groove 190 and the partial groove peripheral wall 183 of the first flow channel groove 180 along the first direction X, so that the first flow channel 181 in the first flow channel groove 180 is connected with the second flow channel 191 in the second flow channel groove 190, facilitating the flow of coolant in the first flow channel 181 into the second flow channel 191, shortening the flow path between the first flow channel 181 and the second flow channel 191.

[0292] In one embodiment, the groove wall 195 of the second flow channel groove 190 includes a connecting hole 193, and the connecting hole 193 is used to connect with the first flow channel groove 180. Figure 14 、 Figure 15 and Figure 16As shown, the partial groove bottom wall 196 of the second flow channel groove 190 is adjacent to the partial groove bottom wall 184 of the first flow channel groove 180 along the third direction Z. The communication hole 193 passes through the adjacent partial groove bottom wall 196 of the second flow channel groove 190 and the partial groove bottom wall 184 of the first flow channel groove 180 along the third direction Z.

[0293] In the embodiment of the present application, the connecting hole 193 connects the first flow channel groove 180 and the second flow channel groove 190, so that the coolant in the first flow channel 181 can flow from the connecting hole 193 into the second flow channel 191, which is beneficial to the circulation of the coolant in the power supply device 100 and is beneficial to improving the integration degree of the power supply device 100.

[0294] In an embodiment of the present application, the groove bottom 192 of the first flow channel groove 180 is located on the lower surface of the base plate 120, the groove bottom 192 of the second flow channel groove 190 is located on the upper surface of the base plate 120, and a portion of the groove bottom wall 196 of the second flow channel groove 190 is adjacent to a portion of the groove bottom wall 184 of the first flow channel groove 180 along the third direction Z, providing space for the coolant in the first flow channel 181 in the first flow channel groove 180 to flow into the second flow channel 191 in the second flow channel groove 190.

[0295] In the embodiment of the present application, a connecting hole 193 along the third direction Z penetrates a portion of the bottom wall 196 of the adjacent second flow channel groove 190 and a portion of the bottom wall 184 of the first flow channel groove 180, so that the coolant in the first flow channel 181 can flow into the second flow channel 191 through the connecting hole 193, shortening the flow path between the first flow channel 181 and the second flow channel 191, which is beneficial to improving the overall integration of the power supply device 100.

[0296] In one embodiment, the communication hole 193 includes two parts. Figure 14 、 Figure 15 and Figure 16 As shown, a portion of the connecting hole 193 penetrates a portion of the bottom wall 196 of the adjacent second flow channel groove 190 and a portion of the bottom wall 184 of the first flow channel groove 180 along the third direction Z, while another portion penetrates a portion of the peripheral wall 194 of the adjacent second flow channel groove 190 and a portion of the peripheral wall 183 of the first flow channel groove 180 along the first direction X. In other words, the connecting hole 193 allows the cooling medium to flow from the first flow channel groove 190 to the second flow channel groove 180 along the third direction Z, and also allows the cooling medium to flow from the first flow channel groove 190 to the second flow channel groove 180 along the first direction X, thereby increasing the speed at which the cooling medium flows from the first flow channel groove 190 to the second flow channel groove 180 and improving the heat exchange efficiency.

[0297] In one embodiment, the peripheral side wall 112 of the integrated groove shell 110 includes a liquid inlet 115, the bottom plate 120 includes a liquid outlet 116, and the peripheral wall 195 of the second flow channel groove 190 includes a connecting hole 193. Figure 14As shown, the liquid inlet 115 is used to connect the radiator 105 and the first flow channel 180, the liquid outlet 116 is used to connect the second flow channel 191, and the communication hole 193 is used to connect the first flow channel 180 and the second flow channel 190. The liquid outlet 116, the communication hole 193, and the liquid inlet 115 are arranged in sequence along the first direction X. Along the third direction Z, the liquid outlet 116 penetrates the bottom 192 of the second flow channel 190. The opening of the liquid inlet 115 along the first direction X faces away from the inner cavity of the integrated channel housing 110.

[0298] In an embodiment of the present application, the liquid inlet 115 is located on the peripheral side wall 112 of the integrated trough shell 110, which is conducive to the arrangement of the external cooling pipe connected to the liquid inlet 115. The liquid outlet 116 is located on the bottom plate 120 of the integrated trough shell 110, which is conducive to the heated cooling liquid flowing out of the power supply device 100 in the direction of gravity, thereby reducing power loss.

[0299] In the embodiment of the present application, the liquid inlet 115 is used to connect the radiator 105 and the first flow channel 180. The coolant in the vehicle cooling system flows from the liquid inlet 115 into the radiator 105 and the first flow channel 180, so that the coolant in the radiator 105 and the first flow channel 180 simultaneously cools the upper circuit board 150, which is beneficial to improving the cooling efficiency of the power supply device 100. The liquid outlet 116 is used to connect to the second flow channel 191, so that the coolant in the second flow channel 191 can flow out of the power supply device 100 through the liquid outlet 116. The coolant from the vehicle cooling system flows through the liquid inlet 115, the first flow channel 181, the connecting hole 193, the second flow channel 191, and the liquid outlet 116 in sequence, or flows through the liquid inlet 115, the radiator 105, the first flow channel 181, the connecting hole 193, the second flow channel 191, and the liquid outlet 116 in sequence.

[0300] In the embodiment of the present application, the liquid outlet 116, the connecting hole 193 and the liquid inlet 115 are arranged in sequence along the first direction X, which facilitates the arrangement of the first flow channel 181 and the second flow channel 191 along the first direction X, and is also conducive to the smooth flow of the coolant through the liquid inlet 115, the connecting hole 193 and the liquid outlet 116 in sequence.

[0301] In the embodiment of the present application, the liquid outlet 116 passes through the bottom 192 of the second flow channel 190 along the third direction Z, so as to facilitate the external cooling pipe 116a (such as Figure 3 The second channel groove 190 (shown in FIG. 1 ) is arranged below the power supply device 100 along the third direction Z. This facilitates the coolant to flow out of the power supply device 100 from the bottom 192 of the second channel groove 190 in the direction of gravity, thereby reducing power loss. The opening of the liquid inlet 115 along the first direction X faces away from the inner cavity of the integrated channel housing 110, facilitating the connection and installation of external piping to the liquid inlet 115.

[0302] In one embodiment, the liquid inlet 115 is located on the second side wall 112 b of the integrated channel housing 110 .

[0303] In one embodiment, the first flow channel 180 includes a separation rib 187. Figure 13 As shown, the dividing rib 187 is used to divide the first flow channel groove 180 into two sub-flow channel grooves 185 and 186. The two sub-flow channel grooves 185 and 186 are arranged at intervals along the second direction Y. Among them, the inlet 185a of one sub-flow channel groove 185 is used to connect to the liquid inlet 115 through the internal oil channel of the integrated groove shell 110, and the other sub-flow channel groove 186 is used to connect to the outlet 105b of the radiator 105 (as shown in FIG. 1 ) through the internal oil channel of the integrated groove shell 110. Figure 6 As shown), the outlets 185b and 186b of the two sub-channel grooves 185 and 186 (as shown Figure 13 As shown in FIG. 1 , a connecting hole 193 is provided for connecting to the second flow channel groove 190 .

[0304] In the embodiment of the present application, a dividing rib 187 is fixed to the lower surface of the base plate 120 and extends along the third direction Z. The dividing rib 187 divides the first flow channel 180 into two sub-flow channels 185 and 186, facilitating a more concentrated flow of coolant input from the liquid inlet 115 through one of the sub-flow channels 185, thereby accelerating the flow rate of coolant in one sub-flow channel 185 and continuously inputting coolant at a lower temperature into one sub-flow channel 185, thereby improving the cooling efficiency of the power supply device 100. Furthermore, when the coolant input from the liquid inlet 115 is input into the radiator 105, the coolant in the radiator 105 can flow out of the power supply device 100 through the other sub-flow channel 186.

[0305] In an embodiment of the present application, the coolant from the vehicle cooling system can flow through the liquid inlet 115, the inlet 185a of a sub-flow channel groove 185, a sub-flow channel groove 185, the outlet 185b of a sub-flow channel groove 186, the connecting hole 193, the second flow channel groove 190, and the liquid outlet 116 in sequence to flow out of the power supply device 100. It can also flow through the liquid inlet 115, the radiator 105, the outlet 105b of the radiator 105, another sub-flow channel groove 186, the outlet 186b of another sub-flow channel groove 186, the connecting hole 193, the second flow channel groove 190, and the liquid outlet 116 in sequence to flow out of the power supply device 100. The first flow channel 180 is divided into two sub-flow channels 185 and 186. When the coolant flowing in the other sub-flow channel 186 is the coolant with a higher temperature in the radiator 105, it can also be ensured that the coolant in one sub-flow channel 185 is the coolant with a lower temperature directly from the vehicle cooling system, which is beneficial to ensuring the cooling effect of the first flow channel 180 on the upper circuit board 150.

[0306] like Figure 5As shown, the inlet 105a of the radiator 105 and the outlet 105b of the radiator 105 are connected to the inlet 185a of a sub-flow channel 185 of the first flow channel 180 (as shown in FIG. Figure 13 As shown) and the inlet 186a of another sub-channel groove 186 are connected.

[0307] In one embodiment, the connecting structure 129 is located inside the integrated groove shell 110, and the connecting structure 129 is fixed to the bottom plate 120 and the second side wall 112b. The connecting structure 129 is used to connect the liquid inlet 115, the inlet 105a and the outlet 105b of the radiator 105, the inlet 185a of one sub-channel groove 185 and the inlet 186a of another sub-channel groove 186. The connecting structure 129 is sealed and fixed to the radiator 105 through a sealing ring to prevent coolant leakage and affect the operation of electrical components.

[0308] Combine Figure 12 and Figure 13 The bottom plate 120 further includes a power distribution slot 121, a busbar capacitor slot 122, and three-phase connector mounting holes 111f. The power distribution slot 121 is used to accommodate the copper busbar of the power distribution device 103, the busbar capacitor slot 122 is used to accommodate the busbar capacitor 163 of the motor controller 101, and the three-phase connector mounting holes 111f are used to secure the connectors 177 between the motor controller 101 and the motor windings. Along the second direction Y, the three-phase connector mounting holes 111f, the second flow channel slot 190, the busbar capacitor slot 122, and the power distribution slot 121 are arranged in sequence.

[0309] In the embodiment of the present application, the three-phase connector mounting hole 111f, the second flow channel groove 190, the busbar capacitor groove 122 and the distribution groove 121 are arranged in sequence along the second direction Y, which is conducive to the regular arrangement of electrical components on the power supply device 100. The three-phase copper busbar assembly 177, the power module 164, the busbar capacitor 163, and the copper busbar of the distribution device 103 are arranged in sequence along the second direction Y, which is conducive to the cooling liquid in the second flow channel groove 190 to cool the power module 164.

[0310] In an embodiment of the present application, the second flow channel groove 190 and the distribution groove 121 are separated by the busbar capacitor groove 122 to prevent the cooling medium penetrating the second flow channel groove 190 from affecting the power transmission of the copper busbar in the distribution groove 121 under extreme conditions. The component can ensure the cooling effect and the stability of the power transmission of the copper busbar.

[0311] In one embodiment, the base plate 120 further includes a communication connector mounting hole 111g, which is used to fix the connector 178 between the vehicle controller 104 and the vehicle-mounted load. Figure 12 and Figure 13, along the first direction X, the communication connector mounting hole 111g, the second flow channel groove 190 and the first flow channel groove 180 are arranged in sequence.

[0312] In the embodiment of the present application, the communication connector mounting hole 111g is used to fix the connector 178 between the vehicle controller 104 and the on-board load. The vehicle controller 104 is used to transmit the communication signal of the on-board load to the power supply device 100 to control the power supply device 100. The communication connector mounting hole 111g, the second flow channel groove 190 and the first flow channel groove 180 are arranged in sequence along the first direction X, which is conducive to the regular arrangement of the electrical components on the power supply device 100. The liquid outlet 116 is located between the second flow channel groove 190 and the communication connector mounting hole 111g, which is conducive to the coolant in the first flow channel groove 180 and the second flow channel groove 190 being discharged from the external cooling pipe 116a connected to the liquid outlet 116. The external cooling pipe 116a connected to the liquid outlet 116 does not occupy too much space of the power supply device 100 along the first direction X, which is conducive to the compact layout of the power assembly 10 and the optimization of vehicle performance.

[0313] In an embodiment of the present application, the communication connector mounting hole 111g and the three-phase connector mounting hole 111f are distributed on adjacent sides of the second flow channel 190, so that the cooling medium of the second flow channel 190 can absorb the heat of the connectors 178 and 177 in the communication connector mounting hole 111g and the three-phase connector mounting hole 111f, and cool the connectors 178 and 177 in the communication connector mounting hole 111g and the three-phase connector mounting hole 111f, which is beneficial to making the signal transmission of the communication connector 178 in the communication connector mounting hole 111g more stable, and is beneficial to making the connector 177 in the three-phase connector mounting hole 111f transmit power faster and avoid heat.

[0314] In one embodiment, the upper surface of the bottom plate 120 further includes a transformer slot 123, an inductor slot 124 and a DC filter slot 125. Figure 12 and Figure 13 Along the third direction Z, at least one of the transformer slot 123, the inductor slot 124, and the DC filter slot 125 is stacked between the first flow channel slot 180 and the upper circuit board 150. Along the first direction X, the transformer slot 123, the inductor slot 124, the DC filter slot 125, and the first flow channel slot 180 are arranged on the same side of the second flow channel slot 190.

[0315] In the embodiment of the present application, the transformer slot 123 and the inductor slot 124 are arranged along the second direction Y, and the transformer slot 123 and the DC filter slot 125 are arranged along the first direction X. The transformer slot 123 is used to accommodate the transformer 141d of the onboard charger 141, the inductor slot 124 is used to accommodate the multiple inductors 141b of the onboard charger 141, and the DC filter slot 125 is used to accommodate the magnetic components of the DC filter 146. The layout of the transformer slot 123, the inductor slot 124, and the DC filter slot 125 can improve the structural robustness of the integrated slot housing 110, which is beneficial for improving the stability of the power supply device 100 and reducing the electrical interference between the various module components.

[0316] In the embodiment of the present application, at least one of the transformer slot 123, the inductor slot 124 and the DC filter slot 125 is stacked between the first flow channel slot 180 and the upper circuit board 150 along the third direction Z, which is beneficial for the coolant in the first flow channel slot 180 to cool at least the transformer 141d of the on-board charger 141, the multiple inductors 141b of the on-board charger 141 and one of the magnetic parts of the DC filter 146.

[0317] In the embodiment of the present application, the transformer slot 123, the inductor slot 124, the DC filter slot 125 and the first flow channel slot 180 are arranged on the same side of the second flow channel slot 190 along the first direction X, which is conducive to arranging the transformer 141d of the on-board charger 141, the multiple inductors 141b of the on-board charger 141 and the magnetic components of the DC filter 146 on the lower surface of the upper circuit board 150, which is conducive to improving the integration and integration of the power supply device 100. At the same time, it is also convenient for the first flow channel slot 180 to cool the transformer 141d of the on-board charger 141 in the transformer slot 123, the multiple inductors 141b of the on-board charger 141 in the inductor slot 124 and the magnetic components of the DC filter 146 in the DC filter slot 125, thereby achieving cooling of the power supply device 100 and ensuring the smooth operation of the power supply device 100.

[0318] The above is a detailed introduction to the all-in-one power supply device, all-in-one powertrain and electric vehicle provided in the embodiments of the present application. Specific examples are used in this article to illustrate the principles and embodiments of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea; at the same time, for general technical personnel in this field, based on the ideas of the present application, there will be changes in the specific embodiments and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. An all-in-one power supply device, characterized in that: The power supply device is used to charge and discharge the battery and drive the motor. The power supply device includes an integrated slotted shell, an upper circuit board and a lower circuit board, wherein: The lower circuit board includes a main area and a secondary area, the main area and the secondary area are adjacently arranged along a first direction, the integrated trough shell includes a bottom plate, the bottom plate, the secondary area of the lower circuit board, and the upper circuit board are stacked in sequence along a third direction, and the main area and the upper circuit board are arranged along the third direction; The main area is used to carry the bus capacitor and power module of the motor controller and multiple chips of the vehicle controller, and the secondary area is used to carry at least part of the power switch tubes of the DC converter; The upper circuit board is used to carry multiple power switching tubes, multiple inductors and multiple capacitors of the vehicle charger.

2. The power supply device according to claim 1, characterized in that: The integrated trough housing further includes a first side wall, a second side wall, and a first shielding wall, and the upper surface of the bottom plate along the third direction is used to fix the first side wall, the second side wall, and the first shielding wall, wherein: Along the first direction, the first side wall, the first shielding wall and the second side wall are sequentially arranged at intervals; The space between the first side wall and the first shielding wall is used to accommodate the main area; The space between the first shielding wall and the second side wall is used to accommodate the upper circuit board; The sub-region protrudes from the first shielding wall toward the second sidewall along the first direction.

3. The power supply device according to claim 2, characterized in that: Along the first direction, the main region, the secondary region, and the second side wall are arranged in sequence, and the secondary region is spaced apart from the second side wall; The space between the secondary area and the second side wall is used to accommodate multiple inductors of the vehicle charger.

4. The power supply device according to claim 2, characterized in that: The lower surface of the upper circuit board is used to carry multiple capacitors in the vehicle charger and multiple magnetic components of the AC filter. The integrated slot-shaped housing further includes a third shielding wall. The upper surface of the bottom plate along the third direction is used to fix the third shielding wall, wherein: Along the first direction, the secondary area, the third shielding wall, and the second side wall are sequentially arranged at intervals; The space between the secondary area and the third shielding wall is used to accommodate multiple capacitors in the vehicle charger; The space between the third shielding wall and the second side wall is used to accommodate multiple magnetic components in the AC filter.

5. The power supply device according to any one of claims 2 to 4, characterized in that: The lower surface of the upper circuit board is used to carry multiple inductors and multiple magnetic components of the DC filter in the vehicle charger. The integrated slot-shaped housing further includes a fourth shielding wall. The upper surface of the bottom plate along the third direction is used to fix the fourth shielding wall, wherein: Along the first direction, the first shielding wall, the fourth shielding wall and the second side wall are sequentially arranged at intervals; The space between the fourth shielding wall and the first shielding wall is used to accommodate multiple magnetic components of the DC filter; The space between the fourth shielding wall and the second side wall is used to accommodate multiple inductors of the vehicle charger.

6. The power supply device according to claim 5, characterized in that: The integrated trough housing further includes a fifth shielding wall, and the upper surface of the bottom plate along the third direction is used to fix the fifth shielding wall, wherein: Along the second direction, the fifth shielding wall is spaced apart from the secondary region; The space between the fifth shielding wall and the secondary area is used to accommodate multiple magnetic components of the DC converter; The area enclosed by the fifth shielding wall, the fourth shielding wall, and the first shielding wall is used to accommodate multiple magnetic components of the DC filter.

7. The power supply device according to claim 6, characterized in that: The integrated trough housing further includes a sixth shielding wall, and the upper surface of the bottom plate along the third direction is used to fix the sixth shielding wall, and the sixth shielding wall extends along the first direction, wherein: Along the first direction, the fourth shielding wall, the sixth shielding wall and the second side wall are arranged in sequence; Along the second direction, the sub-region, the fifth shielding wall and the sixth shielding wall are sequentially arranged at intervals; The sixth shielding wall is used to separate the space between the fourth shielding wall and the second side wall into two areas arranged along the second direction, and the area closer to the secondary area of the two areas is used to accommodate multiple inductors of the vehicle charger, and the other area is used to accommodate the transformer and compressor power supply connector of the vehicle charger.

8. The power supply device according to any one of claims 2 to 7, characterized in that: The power supply device further includes a first shielding cover, which is used to shield at least part of the multiple chips of the vehicle controller, wherein: Along the third direction, the bottom plate, the lower circuit board and the first shielding cover are stacked in sequence; Along the first direction, the first side wall is arranged adjacent to the first shielding cover.

9. The power supply device according to any one of claims 1 to 8, characterized in that: The secondary region is also used to carry multiple magnetic components of the low-voltage filter, and the space between the secondary region and the upper circuit board is used to accommodate the multiple magnetic components of the low-voltage filter.

10. The power supply device according to any one of claims 1 to 9, characterized in that: The integrated trough housing further includes a third side wall, a second shielding wall, and a fourth side wall, and the upper surface of the bottom plate along the third direction is used to fix the third side wall, the second shielding wall, and the fourth side wall, wherein: Along the second direction, the third side wall, the second shielding wall and the fourth side wall are sequentially arranged at intervals; The space between the third side wall and the second shielding wall is used to accommodate part of the copper busbars of the power distribution device; The space between the second shielding wall and the fourth side wall is used to accommodate the main area.

11. The power supply device according to claim 10, characterized in that: Along the first direction, the length of the secondary region is smaller than the length of the primary region; Along the second direction, the length of the secondary region is smaller than the length of the primary region; Along the second direction, sides of the main region and the secondary region facing away from the third side wall are arranged adjacent to the fourth side wall.

12. The power supply device according to claim 10, characterized in that: The upper circuit board includes a notch, and the notch includes an opening along the second direction toward the third side wall and an opening along the first direction toward the main area, wherein: The space between the side edge of the notch and the third side wall is used to accommodate a DC power supply connector and part of the copper busbar of the power distribution device.

13. An all-in-one powertrain, characterized in that: The power assembly includes a motor, a reducer and a power supply device as described in any one of claims 1 to 12, wherein the power supply device is connected to the winding of the motor through a motor controller to drive the motor, and the motor shaft of the motor is drivingly connected to the input shaft of the reducer.

14. The powertrain according to claim 13, characterized in that: The powertrain further includes an integrated housing, a motor end cover, and a reducer end cover. The motor end cover, the integrated housing, and the reducer end cover are sequentially arranged adjacent to each other along the second direction. The integrated slotted shell is stacked on the integrated housing along the third direction. The integrated housing is used to accommodate the motor rotor, the motor stator, and the parallel gear set of the reducer, wherein: The motor end cover is arranged on the same side as the fourth side wall of the integrated groove shell; The reducer end cover is arranged on the same side as the third side wall of the integrated groove shell.

15. An electric vehicle, characterized in that: The electric vehicle includes a frame, a power battery, and a power assembly according to any one of claims 13 to 14. The frame is used to fix the power battery and the power assembly, and the power battery is used to be connected through the power supply device.

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