Motor controller and vehicle

Abstract

The present application discloses a motor controller, which includes: an upper shell and a lower shell assembled together, an upper cavity formed in the upper part of the lower shell, and a lower cavity formed in the lower part of the lower shell, the upper cavity being located between the lower shell and the upper shell; a control circuit board and a drive circuit board disposed in the upper cavity, the control circuit board and the drive circuit board being separated by a shielding plate to prevent mutual electromagnetic interference; and a capacitor, a power module assembly, a water cooler for cooling the power module assembly, and a current sensor disposed in the lower cavity. The lower shell is provided with a mounting structure for cooperating with a transmission housing, the mounting structure being configured to mount the lower shell to the transmission housing so that the transmission housing becomes the bottom shell of the motor controller, and the lower cavity is located between the lower shell and the transmission housing. The present application also relates to a vehicle including the motor controller.

Description

Technical Field

[0001] The present application relates to the field of new energy vehicles, and in particular to a motor controller and a vehicle including the motor controller. Background Art

[0002] The motor controller is a key component in new energy vehicles. It controls the motor according to vehicle speed, torque, and other requirements to achieve power output in different operating conditions. In the current automotive industry, with the rapid development of new energy vehicles and the increasing demand for diversified controller functions, the integration and lightweighting of motor controllers are also increasing to meet the space requirements of the vehicle layout. With the increasing number of components and the complex and compact structure, cooling of electronic components, electromagnetic shielding between high and low voltage components, and signal filtering have become design challenges.

[0003] Current motor controllers are usually installed near the transmission and connected to the transmission through some parts. When the overall assembly space is limited and the motor controller is large (for example, the dual-motor controller is usually large), the transmission design may need to be continuously adjusted and optimized to meet the overall size, weight and space installation requirements after assembly. This increases the difficulty of transmission design to a certain extent. Summary of the Invention

[0004] In view of this, embodiments of the present application provide a motor controller and a vehicle including the motor controller, thereby effectively solving the above-mentioned needs or alleviating at least one of the current disadvantages.

[0005] One aspect of the present application relates to a motor controller, comprising:

[0006] An upper shell and a lower shell assembled together, forming an upper cavity at the upper portion of the lower shell and a lower cavity at the lower portion of the lower shell, wherein the upper cavity is located between the lower shell and the upper shell;

[0007] A control circuit board and a drive circuit board are disposed in the upper cavity, wherein the control circuit board and the drive circuit board are separated by a shielding plate to prevent mutual electromagnetic interference; and

[0008] A capacitor, a power module assembly, a water cooler for cooling the power module assembly, and a current sensor are arranged in the lower cavity.

[0009] In which, the lower shell is provided with a mounting structure for cooperating with the transmission shell, and the mounting structure is configured to install the lower shell to the transmission shell so that the transmission shell becomes the bottom shell of the motor controller, and the lower cavity is located between the lower shell and the transmission shell.

[0010] Optionally, in the motor controller, the mounting structure includes a mounting hole provided on the lower housing, and the mounting hole is used to cooperate with a fastener to achieve fixation between the lower housing and the transmission housing.

[0011] Optionally, the motor controller further includes the transmission housing as the bottom shell, and a sealing element is provided between the lower shell and the transmission housing.

[0012] Optionally, in the motor controller, the control circuit board is mounted on the upper housing, and the low-voltage connector of the control circuit board is mounted on the outside of the upper housing and connected to the control circuit board through a hole in the upper housing.

[0013] Optionally, in the motor controller, the shielding plate is installed on the upper shell to shield the control circuit board between the upper shell and the shielding plate. The male end of the inter-board plug-in installed on the control circuit board passes through the hole in the shielding plate and is plugged into the female end of the inter-board plug-in fixed on the drive circuit board.

[0014] Optionally, the motor controller further includes a high-voltage connector and a fuse, wherein the high-voltage connector is mounted on the outside of the upper shell, and its lead wire passes through a hole in the upper shell and is connected to the fuse mounted on the upper shell and located between the upper shell and the shielding plate.

[0015] Optionally, in the motor controller, the driving circuit board is mounted on the lower housing, and the PIN pins of the power module in the power module assembly pass through the PIN pin holes of the driving circuit board.

[0016] Optionally, in the motor controller, both sides of all power modules of the power module assembly are coated with thermal grease, and are connected to the water-cooling plates of the water cooler via the thermal grease, and the PIN pins of the power modules are inserted into the PIN pin holes of the lower shell. The water cooler is assembled to the lower shell by matching its elbow joint with the hole in the lower shell, and is sealed by a sealing element between the two.

[0017] Optionally, in the motor controller, the capacitor is mounted on the lower housing, and a capacitor thermal pad is provided between the capacitor and the lower housing.

[0018] Optionally, in the motor controller, the PIN pin of the capacitor passes through the hole of the discharge resistor plate installed on the capacitor, and the PIN pin of the capacitor is welded to the discharge resistor plate. The temperature sensor of the capacitor is plugged into the corresponding position of the discharge resistor plate through a connector, and the collected capacitor temperature information is transmitted to the control circuit board through the internal signal harness.

[0019] Optionally, the motor controller further includes a capacitor positive copper busbar and a capacitor negative copper busbar, one end of each of the capacitor positive copper busbar and the capacitor negative copper busbar is an entire plane, connected to the positive pole of the lead-out copper busbar injection-molded on the capacitor, and the other end is divided into six terminals, each terminal is respectively connected to the corresponding lead-out terminal of the power module in the power module assembly.

[0020] Optionally, in the motor controller, the current sensor is mounted on the lower shell, and includes an integrally injection-molded magnetic ring, a PCB board, and a three-phase copper busbar, and the three-phase copper busbar is welded to the output terminal of the power module in the power module assembly.

[0021] Optionally, the motor controller further includes a high-voltage connector installed on the outside of the upper shell, the high-voltage connector is connected to the high-voltage connector copper bus through a hole in the upper shell, and the high-voltage connector copper bus is connected to the capacitor through a hole in the lower shell.

[0022] Optionally, the motor controller further includes a filter, which is installed in the lower shell and located in the lower cavity, and the high-voltage connector copper bus is connected to the capacitor through the filter.

[0023] Optionally, the motor controller further includes a water inlet pipe joint and a water outlet pipe joint for connecting a water inlet pipe and a water outlet pipe respectively, and the water inlet pipe joint and the water outlet pipe joint are installed in the reserved hole in the lower shell from the same side of the lower shell.

[0024] Optionally, in the motor controller, the control circuit board and the drive circuit board are configured to be suitable for a dual-motor hybrid transmission.

[0025] Another aspect of the present application relates to a vehicle comprising the motor controller described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Exemplary embodiments of the present application are shown in the following drawings, in which like elements are denoted by like reference numerals, wherein:

[0027] Figure 1 It is a three-dimensional exploded schematic diagram of an exemplary motor controller according to an embodiment of the present application.

[0028] Figure 2 Shows Figure 1 A schematic longitudinal section of the upper and lower housings of the motor controller and their internal parts after assembly;

[0029] Figure 3 Figure 1 The diagram shows the assembly of the water cooler and power module components of the motor controller.

[0030] Figure 4 yes Figure 1 The diagram shows the assembly of the lower housing of the motor controller and the parts inside the transmission housing.

[0031] Figure 5 yes Figure 1 The welding relationship diagram of the internal parts of the motor controller shown.

[0032] Figure 6 yes Figure 1 The assembly diagram of the control circuit board, shielding board and driver circuit board of the motor controller shown.

[0033] Figure 7 yes Figure 1 Schematic diagram of the motor controller's high-voltage connector and filter assembly.

[0034] Description of reference numerals:

[0035] 1 High voltage connector 2 High voltage connector

[0036] 3 Upper shell 4 High pressure connector blocked

[0037] 5 Fuse 6 Shielding plate

[0038] 7 Driver circuit board 71 Board-to-board female connector

[0039] 8 Water inlet pipe joint 9 Water outlet pipe joint

[0040] 10 Lower housing 103 Control circuit board hexagonal stud

[0041] 101 Upper cavity 102 Lower cavity

[0042] 11 Water cooler block 12 High-pressure connector copper bar

[0043] 13 Filter 14 Water Cooler

[0044] 141 Water cooler water inlet elbow joint 142 Water cooler water outlet elbow joint

[0045] 15 Capacitor 151 Discharge resistor board

[0046] 152 PIN 153 Capacitor temperature sensor

[0047] 16 Power module assembly 161 Power module PIN pin

[0048] 162 Power module positive terminal 163 Power module negative terminal

[0049] 164 Power module output terminal 17 current sensor

[0050] 18 Sealing ring 19 Transmission housing

[0051] 20 Internal signal harness 21 Capacitor thermal pad

[0052] 22 Shock absorber bolt 23 Water pipe blockage

[0053] 24 Control circuit board 241 Inter-board plug-in male terminal

[0054] 242 Control circuit board low voltage connector. DETAILED DESCRIPTION

[0055] Some embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Unless otherwise clearly defined herein, the scientific and technical terms used herein have the meanings commonly understood by those skilled in the art.

[0056] The directional terms such as top, bottom, front, and back mentioned in this document are defined relative to the directions in the respective drawings. They are relative concepts and can therefore vary according to the different practical positions in which they are located. Therefore, these or other directional terms should not be understood as limiting terms.

[0057] Secondly, it should be noted that the following will specifically describe the dual-motor transmission motor controller, features, and advantages of the present application by way of example. However, all descriptions are for illustrative purposes only and should not be construed as limiting the present invention in any way. In addition, any individual technical feature described or implied in the various embodiments mentioned in this application, or any individual technical feature shown or implied in the various drawings, may be further combined or deleted among these technical features (or their equivalents) to obtain more other embodiments of the present invention that may not be directly mentioned in this application.

[0058] One aspect of the present application relates to a motor controller, for example, a motor controller for a dual-motor hybrid transmission, which combines the functions of a generator controller and a drive motor controller to simultaneously control the generator and the drive motor. While ensuring the control function, the motor controller can also share at least part of the housing with the transmission. For example, the motor controller can be used as a sub-component of the transmission assembly and installed on the transmission by bolts. This not only reduces the difficulty of adjusting the internal structure of the transmission, but also improves the maintainability of the system and is more conducive to the serialization of the controller on the entire vehicle platform. In addition, the three-phase copper busbar of the current sensor connected to the dual motors can be integrally injection molded with the internal magnetic ring of the sensor and the sensor controller, which not only reduces the number of parts and ensures lightweight, but also improves assembly and reduces costs.

[0059] Figure 1-7 An exemplary motor controller 100 is shown, comprising an upper housing 3 and a lower housing 10. Both can be made of a suitable material such as metal (e.g., aluminum) and assembled together using fasteners. In some embodiments, the joint surface between the upper housing 3 and the lower housing 10 can be a sealing surface. During assembly, after the assembly of the other parts relative to the housing is substantially complete, a sealing rubber ring can be formed on the sealing surface of the lower housing 10 using a continuous linear glue application with an automatic glue gun. After the glue application is completed, the upper and lower housings can be assembled and tightened with bolts. Under the action of the sealant, a uniform sealing surface is formed on the joint surface between the upper and lower housings, thereby substantially completing the assembly of the motor controller 100. An upper chamber 101 is formed in the upper portion of the lower housing 10, between the upper housing 3 and the lower housing 10. A lower chamber 102 is formed in the lower portion of the lower housing 10, i.e., on the side of the lower housing 10 opposite the upper chamber 101. In some embodiments, the lower housing 10 may include a partition (not visible in the figure) that separates the upper chamber 101 from the lower chamber 102. Parts that are prone to electromagnetic interference with each other and therefore need to be installed separately can be installed separately in the upper chamber 101 and the lower chamber 102. For example, in the illustrated embodiment, the driver circuit board 7 and the control circuit board 24 can be installed in the upper chamber 101, while the power module assembly 16, the water cooler 14, the capacitor 15, and the current sensor 17 can be installed in the lower chamber 102, so that the two are separated to prevent electromagnetic interference between them.

[0060] The lower housing 10 may be provided with a mounting structure for cooperating with the transmission housing 19, and the mounting structure is configured to mount the lower housing 10 to the transmission housing 19, so that the transmission housing 19 becomes the bottom shell of the motor controller 100, and the lower cavity 102 is located between the lower housing 10 and the transmission housing 19. In some embodiments, the mounting structure may include mounting holes provided on the lower housing 10 for cooperating with fasteners to achieve fixation between the lower housing 10 and the transmission housing 19. In the illustrated embodiment, bolt mounting holes may be respectively provided at at least four corners of the lower housing 10, and bolts may be passed through the bolt mounting holes on the lower housing 10 to mount the lower housing 10 to the transmission housing 19. A sealing element may be provided between the lower housing 10 and the transmission housing 19 to achieve sealing between the two. As shown in FIG. Figure 1 As shown, a sealing ring 18 is provided between the lower housing 10 and the transmission housing 19 , and the lower housing 10 and the transmission housing 19 are connected together by a shock-absorbing bolt 22 , which not only performs a sealing function but also improves the mode of the motor controller 100 .

[0061] A water channel in fluid communication with the water cooler 14 may be provided within the lower housing 10 to form a water cooling channel. In the illustrated embodiment, the water inlet and outlet pipe connectors 8 and 9 are threadedly assembled into pre-recorded holes on the same side (e.g., the right side) of the lower housing 10. A water pipe plug 23 is press-fitted into a hole on the other side (e.g., the left side) of the lower housing 10.

[0062] like Figure 1-3 As shown, the power module assembly 16 is located in the lower cavity 102 and includes six power modules. Thermal grease can be applied to both sides of each power module. After the thermal grease is applied, the six power modules are respectively inserted into the gaps between the water-cooling plates of the water cooler 14. After installation, the power module PIN pins 161 are inserted into the PIN pin holes of the lower housing 10. The water cooler water inlet elbow 141 and the water cooler water outlet elbow 142 are assembled and connected to the holes in the lower housing 10. A sealing ring is used between the two, for example, to achieve communication with the water channel in the lower housing 10. A power module auxiliary tooling can be installed on the back of the lower housing 10. The power module PIN pins 161 are inserted into the holes of the auxiliary tooling. The power module assembly 16 is then adjusted to the optimal position with the aid of the auxiliary tooling. After the power module assembly 16 and the water cooler 14 are fastened together using the water cooler clamp 11, the water-cooling plates of the water cooler 14 and the power module assembly 16 are tightly fitted together, enhancing the cooling effect of the power module assembly 16. The auxiliary tooling can be removed after installation is completed.

[0063] like Figure 1 and Figure 4As shown, capacitor 15 and filter 13 are also located in lower cavity 102. Filter 13 and capacitor 15 are positioned between lower housing 10 by locating pins, and filter 13 and capacitor 15 are installed on lower housing 10 and positioned in lower cavity 102 by bolt connection. This capacitor 15 can adopt two-stage CLC filtering, so that differential mode and common mode signals are preferably filtered out. A capacitor heat conducting pad 21 can be set between lower housing 10 and capacitor 15. When capacitor 15 is installed, capacitor heat conducting pad 21 between capacitor and housing is compressed by bolt connection, which optimizes the heat dissipation of capacitor 15. After installation, two lead-out copper bars of capacitor 15 are connected together with the lead-out copper bar of filter 13 by bolts.

[0064] like Figure 4 As shown, PIN pin 152 can be inserted through the hole of discharge resistor plate 151, and discharge resistor plate 151 can be mounted on capacitor 15 using bolts. PIN pin 152 and discharge resistor plate 151 are then connected together using wave soldering. Capacitor temperature sensor 153 can also be plugged into a corresponding position on discharge resistor plate 151 via a connector, and the collected capacitor temperature information is transmitted to control circuit board 24 via internal signal harness 20.

[0065] like Figure 4 As shown, the high-voltage connector copper bar 12 passes through the reserved hole of the lower shell 10, and the high-voltage connector copper bar 12 is positioned by positioning the plastic pin of the high-voltage connector copper bar 12 in the pin hole of the lower shell 10. The high-voltage connector copper bar 12 and the lead-out copper bar on the other side of the filter 13 are locked by bolt connection. The current sensor 17 adopts an integrated design, and the internal magnetic ring, PCB board and six copper bars are integrally injection molded, thereby improving the assemblability of the system. Figure 3 、 Figure 4 and Figure 7 As can be seen, the current sensor 17 is positioned relative to the lower housing 10 via its locating pins. After adjustment, the six copper busbars of the current sensor 17 can be placed snugly against the power module output terminals 164 and bolted together to secure the current sensor 17 to the lower housing 10. Laser welding can then be used to connect the six copper busbars of the current sensor 17 to the power module output terminals 164. The connector at one end of the internal signal harness 20 connects to the current sensor 17 and the discharge resistor board 151 within the lower chamber 102. The other end passes through a pre-set hole in the lower housing 10 and into the upper chamber 101.

[0066] Depend on Figure 4 and Figure 5As shown, the connecting copper busbar of capacitor 15 is divided into a negative copper busbar and a positive copper busbar. One connecting end of the positive and negative copper busbars of capacitor 15 is the entire plane (large plane), and the other connecting end includes six terminals. Before installation and welding, the position of the copper busbar can be adjusted so that the large plane of the copper busbar of capacitor 15 is tightly fitted with the positive lead-out copper busbar injection-molded on capacitor 15, and the six terminals of the copper busbar of capacitor 15 are tightly fitted with the lead-out terminals of power module assembly 16, respectively. The fitting surface can be clamped with a tool, and then the large plane end of the positive copper busbar of capacitor is connected to the positive lead-out copper busbar injection-molded on capacitor 15 by, for example, laser welding or bolts. The six terminals of the positive copper busbar of capacitor can be laser welded to the positive terminal 162 of the power module respectively.

[0067] like Figure 2 and Figure 6 As shown, in the upper cavity 101 formed between the upper shell 3 and the lower shell 10, the driving circuit board 7 is placed at the corresponding position on the plane of the lower shell 10, and the PIN pins of the power module are passed through the holes of the lower shell 10, and then the driving circuit board 7 is fixed to the lower shell 10 by bolt connection.

[0068] like Figure 1 As shown, the lead wires of the high-voltage connector 1 pass through a reserved hole in the upper housing 3 and are fixed to the exterior of the upper housing 3 via bolts. The fuse 5 is also bolted to the upper housing 3 and located within the upper cavity 101. The two lead wires of the high-voltage connector 1 are bolted together, connecting the lead wires of the high-voltage connector 1 and the lead copper busbar of the fuse 5. A window is provided in the upper housing 3 above the fuse, allowing installation and removal of the fuse 5 without removing the upper housing 3, improving the system's maintainability.

[0069] like Figure 1 、 Figure 2 and Figure 7 As shown, the high-voltage connector 2 can be inserted into the reserved hole of the upper shell 3, and then the position can be fine-tuned. The high-voltage connector matching mounting surface and the high-voltage connector copper bar 12 can be tightly fitted together with bolts, and the high-voltage connector 2 can be locked in the bolt hole on the upper part of the upper shell 3 by bolts. The high-voltage connector plug 4 is installed in the hole of the upper shell 3.

[0070] like Figure 5 and Figure 6The other end of the internal signal harness 20 passes through the reserved hole in the lower housing 10 and into the upper cavity 101, where it plugs into the connector of the control circuit board 24. The control circuit board 24 is fixed to the upper housing 3 via the control circuit board hexagonal studs 103. The control circuit board low-voltage connector 242 passes through the hole in the upper housing 3 and is installed on the outside of the upper housing 3. It is connected by bolts, tightening the sealing ring between the control circuit board low-voltage connector 242 and the upper housing 3 to achieve the purpose of sealing.

[0071] like Figure 6 The shielding plate 6 is bolted to the bolt holes of the hexagonal studs 103 on the control circuit board fixed to the upper housing 3. Once tightened, the shielding plate 6 is tightly connected to the end face of the upper housing 3, effectively shielding the control circuit board 24, fuse 5, and other components located between them. The male end 241 of the inter-board plug-in for the driver circuit board 7, which is installed on the control circuit board 24, passes through the reserved hole in the shielding plate and plugs into the female end 71 of the inter-board plug-in fixed to the driver circuit board 7. Optionally, shock-absorbing bolts can be added between the circuit boards to enhance the circuit board's vibration reduction effect. With this approach, since the driver circuit board 7 is also located in a cavity (upper cavity 101) on the back side of the lower housing 10, where three-phase AC components such as the current sensor are mounted, the arrangement of the shielding plate 6 and the lower housing 10 cleverly creates a well-shielded area, eliminating interference from other components on the circuit board. The architectural layout fully considers the impact of structural shielding on EMC performance.

[0072] The motor controller 100 in the above embodiment can simultaneously control the two motors of the transmission and, based on the vehicle's speed, torque, and other requirements, control the motors to achieve power output under different operating conditions. Within a limited space, the motor controller 100 also rationally provides a cooling circuit to effectively cool each component, and fully considers the impact of structural shielding on EMC performance in its architectural layout. Furthermore, by sharing parts with the transmission and integrating the design of key internal components, a high degree of integration of system structure and function is ensured. This not only reduces the total weight of the transmission and controller, reducing costs, but also improves the controller's adaptability and assemblability. It is particularly suitable for larger dual-motor controllers and is conducive to the platform serialization of the controller.

[0073] Another aspect of the present application relates to a vehicle comprising the motor controller. Based on the above disclosure, a person skilled in the art can easily obtain a vehicle comprising the motor controller of the present application.

[0074] The above specific implementation methods are used to explain the present application rather than to limit the present application. Any modifications and changes made to the present application within the spirit of the present application and the protection scope of the claims shall fall within the protection scope of the present application.

Claims

1. A motor controller, characterized in that: It includes: An upper shell and a lower shell assembled together, wherein an upper cavity is formed at the upper portion of the lower shell and a lower cavity is formed at the lower portion of the lower shell, the upper cavity is located between the lower shell and the upper shell, and the lower shell includes a partition plate, the partition plate separates the upper cavity and the lower cavity to prevent electromagnetic interference between components in the upper cavity and the lower cavity; A control circuit board and a drive circuit board are disposed in the upper cavity, wherein the control circuit board and the drive circuit board are separated by a shielding plate to prevent mutual electromagnetic interference; and A capacitor, a power module assembly, a water cooler for cooling the power module assembly, and a current sensor are arranged in the lower cavity. In which, the lower shell is provided with a mounting structure for cooperating with the transmission shell, and the mounting structure is configured to install the lower shell to the transmission shell so that the transmission shell becomes the bottom shell of the motor controller, and the lower cavity is located between the lower shell and the transmission shell.

2. The motor controller according to claim 1, characterized in that: The mounting structure includes a mounting hole provided on the lower housing, and the mounting hole is used to cooperate with a fastener to achieve fixation between the lower housing and the transmission housing.

3. The motor controller according to claim 1, wherein: It further includes the transmission housing as the bottom shell, and a sealing element is provided between the lower shell and the transmission housing.

4. The motor controller according to claim 1, wherein: The control circuit board is mounted on the upper shell, and the low-voltage connector of the control circuit board is mounted on the outside of the upper shell and is connected to the control circuit board through a hole in the upper shell.

5. The motor controller according to claim 1, wherein: The shielding plate is installed on the upper shell to shield the control circuit board between the upper shell and the shielding plate. The male end of the inter-board plug-in installed on the control circuit board passes through the hole in the shielding plate and is plugged into the female end of the inter-board plug-in fixed on the drive circuit board.

6. The motor controller according to claim 1, characterized in that: It further includes a high-voltage connector and a fuse. The high-voltage connector is installed on the outside of the upper shell, and its lead wire passes through the hole in the upper shell and is connected to the fuse installed on the upper shell and located between the upper shell and the shielding plate.

7. The motor controller according to claim 1, characterized in that: The driving circuit board is mounted on the lower housing, and the PIN pins of the power module in the power module assembly pass through the PIN pin holes of the driving circuit board.

8. The motor controller according to claim 1, wherein: Both sides of all power modules in the power module assembly are coated with thermal grease, and are connected to the water-cooling plates of the water cooler via the thermal grease. The PIN pins of the power modules are inserted into the PIN pin holes of the lower shell. The water cooler is assembled to the lower shell by matching its elbow joint with the hole in the lower shell, and is sealed by a sealing element between the two.

9. The motor controller according to claim 1, characterized in that: The capacitor is mounted on the lower housing, and a capacitor thermal pad is provided between the capacitor and the lower housing.

10. The motor controller according to claim 1, wherein: The PIN pin of the capacitor passes through the hole of the discharge resistor plate installed on the capacitor, and the PIN pin of the capacitor is welded to the discharge resistor plate. The temperature sensor of the capacitor is plugged into the corresponding position of the discharge resistor plate through a connector, and the capacitor temperature information collected by it is transmitted to the control circuit board through an internal signal harness.

11. The motor controller according to claim 1, wherein: It further includes a capacitor positive copper bar and a capacitor negative copper bar, one end of each of the capacitor positive copper bar and the capacitor negative copper bar is a whole plane, which is connected to the positive electrode of the lead-out copper bar injection-molded on the capacitor, and the other end is divided into six terminals, each terminal is respectively connected to the corresponding lead-out terminal of the power module in the power module assembly.

12. The motor controller according to claim 1, wherein: The current sensor is mounted on the lower housing and includes an integrally injection-molded magnetic ring, a PCB board, and a three-phase copper busbar. The three-phase copper busbar is welded to the output terminal of the power module in the power module assembly.

13. The motor controller according to claim 1, wherein: It further includes a high-voltage connector installed on the outside of the upper shell, the high-voltage connector is connected to the high-voltage connector copper bus through the hole in the upper shell, and the high-voltage connector copper bus is connected to the capacitor through the hole in the lower shell.

14. The motor controller according to claim 13, characterized in that: It further includes a filter, which is installed on the lower shell and located in the lower cavity, and the high-voltage joint copper bar is connected to the capacitor through the filter.

15. The motor controller according to claim 1, wherein: It further comprises a water inlet pipe joint and a water outlet pipe joint respectively used for connecting the water inlet pipe and the water outlet pipe. The water inlet pipe joint and the water outlet pipe joint are installed in the reserved hole in the lower shell from the same side of the lower shell.

16. The motor controller according to claim 1, characterized in that: The control circuit board and the drive circuit board are configured to be suitable for a dual-motor hybrid transmission.

17. A vehicle, characterized in that: It comprises a motor controller according to any one of claims 1 to 16.

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