Controller, electric drive system, and electric device

Abstract

A controller (10), an electric drive system (100), and an electric device. The electric device comprises the electric drive system (100). The electric drive system (100) comprises the controller (10). The controller (10) comprises a housing (11) and an electronic module (12). The electronic module (12) comprises a plurality of discrete apparatuses that are distributed on the housing (11) and are electrically connected. By configuring the electronic module (12) of the controller (10) to comprise a plurality of discrete apparatuses that are electrically connected, the electronic module (12) is arranged on the housing (11) by means of the plurality of discrete apparatuses.

Description

Controllers, electric drive systems and electric equipment

[0001] Cross-references

[0002] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of the People's Republic of China on January 2, 2024, with application number 202420003405.X and application name "Controller, Electric Drive System and Electric Equipment", the entire contents of which are incorporated by reference into this application. Technical Field

[0003] The present application relates to the field of electronic technology, and in particular to a controller, an electric drive system and an electric device. Background Art

[0004] In some cases, electronic modules such as power modules and busbar capacitors are typically integrated standard modules. For example, the power module uses a standard power module, which has a fixed and large size. This results in a larger controller size, making miniaturization difficult. This, in turn, results in a larger electric drive system, requiring more space in the electric vehicle.

[0005] Summary of the Invention

[0006] In view of the above problems, the purpose of the embodiments of the present application is to provide a controller, an electric drive system and an electric device that can improve the technical problem of the large size of the controller.

[0007] The technical solution adopted in the embodiment of this application is:

[0008] In a first aspect, an embodiment of the present application provides a controller, including:

[0009] shell;

[0010] An electronic module includes multiple discrete devices distributed in a housing and electrically connected.

[0011] The controller provided in the embodiments of the present application is configured such that the electronic module of the controller includes multiple electrically connected discrete components, so that the electronic module is arranged in the housing through the multiple discrete components. This, on the one hand, can reduce the volume of the electronic module, and on the other hand, can increase the flexibility of the layout of the electronic module on the housing, thereby helping to improve the space utilization of the controller. Based on this, the volume of the controller can be reduced, and the volume of the electric drive system can be reduced, thereby reducing the space occupied by the electric drive system in the vehicle.

[0012] In some embodiments, the electronic module includes a power module, which includes a plurality of power devices distributed in a housing and electrically connected, and the power devices are discrete devices.

[0013] This configuration reduces the size of the controller, and thus the electric drive system, reducing the space it occupies within the vehicle. Furthermore, the power module's high scalability allows for flexible controller and electric drive system design, enabling flexible and convenient customization and low manufacturing costs.

[0014] In some embodiments, the power module further includes a power board disposed in the housing, and a plurality of power devices are disposed on the power board.

[0015] On the one hand, this reduces the size of the power module, facilitating efficient and full utilization of the controller's internal space, thereby reducing the size of the controller and electric drive system. On the other hand, this simplifies the manufacturing process of the power module and reduces costs. Furthermore, by locating the power devices on the power board, the power module layout is highly flexible, effectively utilizing the controller's internal space, and thus helping to reduce the controller's size.

[0016] In some embodiments, the controller further includes a control board, and the power board and the control board are electrically connected via a first connector.

[0017] The control board and the power board are electrically connected via the first connector to achieve electrical connection between the power module and the control board.

[0018] In some embodiments, the power board includes a plurality of sub-boards spaced apart from each other in the housing, and the plurality of power devices are disposed on the plurality of sub-boards.

[0019] The power board includes multiple sub-boards, and multiple power devices are divided into multiple sub-boards, so that each sub-board and the power devices thereon can be flexibly arranged in the housing, so that the layout flexibility of the power module in the controller is higher, which helps to fully and effectively utilize the internal space of the controller to reduce the size of the controller.

[0020] In some embodiments, the housing is provided with a boss, and the power device is disposed on the boss.

[0021] This configuration can reduce the use of power boards and help reduce the size of the power module.

[0022] In some embodiments, the controller further includes a control board, and the power device is plugged into the control board.

[0023] By plugging the power device into the control board, the power device and the control board are electrically connected, that is, the power module and the control board are electrically connected.

[0024] In some embodiments, the plurality of power devices are divided into three groups, the three groups of power devices are arranged in parallel, and each group of power devices includes a plurality of electrically connected power devices.

[0025] With this arrangement, multiple power devices are divided into three groups, and the three groups of power devices are arranged in parallel, so that the power module can be used for power conversion and control circuits.

[0026] In some embodiments, at least one group of power devices is divided into multiple first power devices and multiple second power devices; at least one group of multiple first power devices is distributed along a straight line or a curve, and / or at least one group of multiple second power devices is distributed along a straight line or a curve.

[0027] This helps improve the integration of the controller's internal components, thereby increasing the space utilization of the controller and reducing the size of the controller. It also helps improve the scalability of the power module.

[0028] In some embodiments, the electronic module further includes a bus capacitor disposed in the housing, and the bus capacitor is electrically connected to the power module.

[0029] Such an arrangement enables the bus capacitor to stably output direct current to the power module, so that the power module can convert the direct current into alternating current and output it to the motor.

[0030] In some embodiments, the power module further comprises a power board disposed in the housing, the power device is disposed on the power board, and the bus capacitor is electrically connected to the power board;

[0031] Alternatively, the multiple power devices are divided into three groups, the three groups of power devices are arranged in parallel, each group of power devices includes multiple power devices, the multiple power devices in each group are converged through the second connector, and the bus capacitor is electrically connected to the second connector.

[0032] With this arrangement, if the power module is provided with a power board, the bus capacitor can be electrically connected to the power board to achieve electrical connection between the bus capacitor and the power module. If the power module is not provided with a power board, the bus capacitor can be electrically connected to the second connector to achieve electrical connection between the bus capacitor and the power module.

[0033] In some embodiments, the bus capacitor includes a plurality of capacitor devices connected in parallel, and the capacitor devices are discrete devices.

[0034] By configuring the bus capacitor to include a plurality of capacitor devices connected in parallel, and using discrete devices as the capacitor devices, the volume of the controller can be reduced, and the scalability of the bus capacitor can be increased.

[0035] In some embodiments, the housing is provided with a first surface, the power module is provided on the first surface, and the first surface is provided with a receiving groove spaced apart from the power module, and at least a portion of the bus capacitor is provided in the receiving groove.

[0036] Such an arrangement facilitates the layout of the power module and the bus capacitor on the housing, thereby helping to improve the integration of the internal components of the controller and reduce the size of the controller.

[0037] In some embodiments, the housing is provided with a liquid cooling tank isolated from the electronic module, and the liquid cooling tank is used to circulate a coolant for exchanging heat with the electronic module.

[0038] This configuration can achieve cooling of the electronic module.

[0039] In some embodiments, a plurality of heat dissipating elements are provided in the liquid cooling tank at intervals.

[0040] Such an arrangement can improve the heat dissipation effect of the electronic module.

[0041] In some embodiments, the housing includes a first shell and a second shell, and at least a portion of the electronic module is disposed in a space enclosed by the first shell and the second shell.

[0042] By disposing at least a portion of the electronic module in the space enclosed by the first shell and the second shell, a protective effect for the electronic module can be achieved.

[0043] In a second aspect, an embodiment of the present application provides an electric drive system, including a controller.

[0044] The electric drive system provided in the embodiment of the present application, due to the use of the controller involved above, can reduce the size of the controller, and thus the size of the electric drive system, thereby reducing the space occupied by the electric drive system in the vehicle. In this way, under the condition that the number of batteries is predetermined, the vehicle's cabin can be reduced, so that the vehicle can leave as large a driving compartment as possible for the passengers. Under the condition that the space in the cabin is predetermined, the cabin has a larger space to accommodate more batteries.

[0045] In some embodiments, the electric drive system further includes a motor, and the controller is disposed on an axial end face of the motor.

[0046] Such an arrangement allows the controller to occupy the space of the electric drive system at the end face of the motor in the axial direction, thereby improving the space utilization of the electric drive system and reducing the volume of the electric drive system to reduce the space occupied by the electric drive system on the vehicle.

[0047] In some embodiments, the electronic module includes a power module, and the power module includes a power board disposed in the housing, and the power board intersects with the axial direction of the motor.

[0048] By axially intersecting the power board and the motor, the deformation and bending direction of the power board can be made inconsistent with the vibration direction of the vehicle in daily operating conditions as much as possible, thereby improving the reliability of the power board and further improving the reliability of the electric drive system.

[0049] In some embodiments, the controller further includes a control board disposed on the housing, the control board is electrically connected to the electronic module, and the control board intersects with the axial direction of the motor.

[0050] By axially intersecting the control board and the motor, the deformation and bending direction of the control board can be made inconsistent with the vibration direction of the vehicle in daily operating conditions as much as possible, thereby improving the reliability of the control board and further improving the reliability of the electric drive system.

[0051] In some embodiments, the electric drive system further includes a transmission, and the transmission and the controller are respectively disposed at opposite ends of the motor along the axial direction.

[0052] Such an arrangement enables the transmission, motor, controller and other structures of the electric drive system to be highly integrated, thereby reducing the volume of the electric drive system and thus reducing the space occupied by the electric drive system on the vehicle.

[0053] In some embodiments, the housing is provided with a liquid cooling tank for circulating cooling liquid, and the liquid cooling tank is provided between the electronic module and the motor along the axial direction of the motor.

[0054] By arranging the liquid cooling tank between the electronic module and the motor in the axial direction of the motor, the liquid cooling tank of the controller can be used to cool the controller and the end of the motor close to the controller in the axial direction at the same time.

[0055] In some embodiments, along the axial direction of the motor, a side of the liquid cooling tank away from the electronic module has an opening, and an end surface of the motor along the axial direction facing the controller covers the opening.

[0056] This arrangement allows the coolant in the liquid cooling tank to have a high cooling effect on the motor. It also improves the integration of the controller housing and the motor, thereby helping to reduce the size of the electric drive system.

[0057] In a third aspect, an embodiment of the present application provides an electric device, including an electric drive system.

[0058] The electric device provided in the embodiment of the present application, due to the adoption of the above-mentioned electric drive system, can reduce the volume of the controller, and thus can reduce the volume of the electric drive system, thereby reducing the space occupied by the electric drive system in the electric device. In this way, under the condition that the number of batteries is predetermined, the cabin of the electric device can be reduced, so that the electric device can leave as large a driving compartment as possible for the passengers. Under the condition that the space in the cabin is predetermined, the cabin has a larger space to arrange more batteries.

[0059] The above description is only an overview of the technical solution of the present application. In order to more clearly understand the technical means of the present application, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present application more obvious and easy to understand, the specific implementation methods of the present application are listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0060] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the embodiments or exemplary technical descriptions. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without any creative work.

[0061] FIG1 is a schematic diagram of a vehicle provided in some embodiments of the present application;

[0062] FIG2 is a partial schematic diagram of an electric drive system provided in some embodiments of the present application;

[0063] FIG3 is a partial three-dimensional structural diagram of an electric drive system provided in some embodiments of the present application;

[0064] FIG4 is a partial perspective structural diagram of a controller of the electric drive system shown in FIG3 ;

[0065] FIG5 is a partial three-dimensional structural diagram of a controller provided in some other embodiments of the present application;

[0066] FIG6 is a partial three-dimensional structural diagram of a controller provided in some other embodiments of the present application;

[0067] FIG7 is a partial three-dimensional structural diagram of an electric drive system provided in some further embodiments of the present application;

[0068] FIG8 is a partial perspective structural diagram of a controller of the electric drive system shown in FIG7 ;

[0069] FIG9 is a partial three-dimensional structural diagram of the housing of the controller provided in FIG4 at one viewing angle;

[0070] FIG10 is a partial three-dimensional structural diagram of the housing of the controller provided in FIG4 from another perspective.

[0071] Among them, the figure marks in the figure are: 1000-vehicle; 100-electric drive system; 10-controller; 20-motor; 30-battery; 40-transmission; 11-housing; 1101-liquid cooling tank; 1102-opening; 1103-first surface; 1104-accommodating groove; 111-boss; 112-first shell; 113-second shell; 114-heat sink; 12-electronic module; 121-power module; 1211-power device; 1211a-first power device; 1211b-second power device; 1212-power board; 12121-daughter board; 1213-second connector; 122-bus capacitor; 13-control board; 14-first connector; 15-third connector; 16-fourth connector; 17-fifth connector; 18-filter component. DETAILED DESCRIPTION

[0072] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0073] Unless otherwise specified, all implementations and optional implementations of the embodiments of the present application can be combined with each other to form a new technical solution.

[0074] Unless otherwise specified, all technical features and optional technical features of the embodiments of the present application can be combined with each other to form a new technical solution.

[0075] In the description of the embodiments of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application.

[0076] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of the features.

[0077] In the description of the embodiments of the present application, "a plurality of" means more than two, and unless otherwise specifically defined, "more than two" includes two. Accordingly, "a plurality of groups" means more than two groups, including two groups.

[0078] In the description of the embodiments of this application, unless otherwise expressly specified or limited, the terms "installed," "connected," "connected," "fixed," and the like should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integration; mechanical connections or electrical connections; direct connections or indirect connections through an intermediate medium; and they may refer to internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on the specific circumstances.

[0079] In the description of this application, the term "and / or" is simply a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can mean: A exists, A and B exist at the same time, and B exists. In addition, in this application, the character " / " generally indicates that the related objects are in an "or" relationship.

[0080] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

[0081] With the development of the electric vehicle industry, electric drive systems are moving towards miniaturization and integration. The cabin of the vehicle where the electric drive system is located is also required to be made more compact, and space utilization is required to be further improved so that the vehicle can leave as much driving and passenger compartment as possible for passengers or as much cabin as possible to accommodate as many batteries as possible.

[0082] In related technologies, electronic modules such as the power module and busbar capacitors of the electric drive system controller generally use integrated standard modules. Taking the controller power module as an example, the power module generally adopts an integrated standard power module. For example, the power module can be composed of a standard full-bridge power module or three standard half-bridge power modules. In some cases, the size of the standard power module is fixed and large, which makes the controller larger, making it difficult to achieve miniaturization. This in turn makes the electric drive system larger and requires more space in the vehicle.

[0083] Based on the above considerations, the embodiments of the present application provide a controller, an electric drive system, and an electric device. By configuring the electronic module of the controller to include multiple electrically connected discrete components, the electronic module is arranged on the housing through multiple discrete components. In this way, on the one hand, the volume of the electronic module can be reduced, and on the other hand, the layout flexibility of the electronic module on the housing can be improved, which helps to improve the space utilization of the controller. Based on this, the volume of the controller can be reduced, and then the volume of the electric drive system can be reduced, thereby reducing the space occupied by the electric drive system in the vehicle.

[0084] The controllers involved in the embodiments of the present application can be applied to electric devices that use electric drive systems as power sources. The electric devices may include, but are not limited to, vehicles, electric toys, battery-powered vehicles, ships, spacecraft, excavators, and the like. Electric toys may include fixed or mobile electric toys, such as electric car toys, electric ship toys, and electric airplane toys. Spacecraft may include airplanes, rockets, space shuttles, and spacecraft, among others.

[0085] For the convenience of explanation, some embodiments of the present application are described using the electric device as a vehicle as an example.

[0086] Please refer to Figure 1, which is a schematic diagram of a vehicle 1000 provided in some embodiments of the present application. Based on the power source, vehicle 1000 can be a pure electric vehicle, a hybrid electric vehicle, or an extended-range electric vehicle. Based on the drive mode, vehicle 1000 can be a front-wheel drive vehicle, a rear-wheel drive vehicle, or a four-wheel drive vehicle.

[0087] In some embodiments of the present application, a vehicle 1000 may include a vehicle body and an electric drive system 100 .

[0088] The vehicle body is the main supporting component of the vehicle 1000, and the vehicle body has an engine cabin and a driver's cabin. The engine cabin is used to accommodate the electric drive system 100 of the vehicle 1000, etc., and the driver's cabin is used to provide operating space and riding space for the driver and passengers. When the vehicle 1000 is a front-wheel drive vehicle, the engine cabin is arranged at the head of the vehicle body, that is, the engine cabin is the front engine cabin. When the vehicle 1000 is a rear-wheel drive vehicle, the engine cabin is arranged at the rear of the vehicle body, that is, the engine cabin is the rear engine cabin. When the vehicle 1000 is a four-wheel drive vehicle, the engine cabin is divided into a front engine cabin and a rear engine cabin, the front engine cabin is arranged at the head of the vehicle body, and the rear engine cabin is arranged at the rear of the vehicle body. The driver's cabin is arranged between the head and the rear of the vehicle body.

[0089] The electric drive system 100 is the power system of the vehicle 1000. It is used to convert electrical energy into mechanical energy to drive the vehicle 1000 for starting, navigation, driving, and other operational needs during driving. The electric drive system 100 is mounted on the vehicle body. Specifically, a portion of the electric drive system 100 may be located within the engine compartment, while another portion may be located on the bottom of the vehicle body.

[0090] Please refer to Figures 1 and 2 together. Figure 2 is a partial schematic diagram of an electric drive system 100 provided in some embodiments of the present application. In some embodiments of the present application, the electric drive system 100 may include a controller 10, which is used to control the operation of the electric drive system 100 to achieve control of the vehicle 1000.

[0091] The electric drive system 100 may further include a motor 20. The controller 10 is configured to convert direct current (DC) into alternating current (AC) and output the AC power to the motor 20 to control the operation of the motor 20, thereby enabling drive control of the vehicle 1000. For example, the controller 10 may control the starting, speed change, and stopping of the motor 20 to drive the vehicle 1000 to start, change speed, and stop.

[0092] The electric drive system 100 may further include a battery 30, and the controller 10 may be further configured to control the battery 30 to supply power to the motor 20, for example, to meet the power requirements for starting, navigation, and driving the vehicle 1000. Specifically, the controller 10 is electrically connected to the battery 30 and is configured to convert the direct current (DC) power provided by the battery 30 into alternating current (AC) power and output the AC power to the motor 20.

[0093] The controller 10 can also be used to convert AC power into DC power. For example, when the vehicle 1000 recovers kinetic energy, the motor 20 can convert the mechanical energy that drives its rotation into AC power, and the controller 10 can convert the AC power into DC power and charge it back into the battery 30.

[0094] In some embodiments of the present application, the electric drive system 100 may further include a transmission 40, which is connected to the motor 20 to achieve torque change of the motor 20. The transmission 40 (Transmission), also known as a gearbox, is a mechanism for changing the speed and torque of the motor 20. It can change the output shaft and input shaft transmission ratio in a fixed or step-by-step manner.

[0095] It is understood that the controller 10 can be integrated with the motor 20 to form the electric drive system 100. The battery 30 can also be integrated with the controller 10 to form the electric drive system 100. The controller 10, the battery 30 and the motor 20 can also be integrated to form the electric drive system 100. The controller 10, the motor 20 and the transmission 40 can also be integrated to form the electric drive system 100. The controller 10, the motor 20, the transmission 40 and the battery 30 can also be integrated to form the electric drive system 100. Of course, in some embodiments, the electric drive system 100 can also integrate other structures, such as cooling oil circuits.

[0096] Please refer to Figures 3 and 4 together. Figure 3 is a partial three-dimensional structural diagram of the electric drive system 100 provided in some embodiments of the present application, and Figure 4 is a partial three-dimensional structural diagram of the controller 10 of the electric drive system 100 shown in Figure 3. The controller 10 provided in the embodiment of the present application includes a housing 11 and an electronic module 12, and the electronic module 12 is disposed in the housing 11. The electronic module 12 includes a plurality of discrete components, and the plurality of discrete components are distributed in the housing 11, and the plurality of discrete components are electrically connected.

[0097] The housing 11 refers to the casing structure of the controller 10 and is used to at least install and support the electronic module 12 .

[0098] The electronic module 12 is an electronic device that performs predetermined functions when powered on. The electronic module 12 may include a wireless capacitor, a power module 121, and the like. For example, the electronic module 12 includes the power module 121. When powered on, the electronic module 12 may convert direct current (DC) into alternating current (AC), thereby enabling the controller 10 to convert DC into AC and output the AC to the motor 20.

[0099] A discrete device refers to an electronic device that has a single function and cannot be separated. It can be understood that multiple discrete devices constitute the electronic module 12.

[0100] Multiple discrete devices are distributed in the housing 11. Multiple discrete devices can be distributed in the housing 11 at intervals; multiple discrete devices can be distributed in the housing 11 in a mutually supportive manner; or some discrete devices can be distributed in the housing 11 at intervals, while other discrete devices can be distributed in the housing 11 in a mutually supportive manner.

[0101] The electrical connection of multiple discrete devices can be done by connecting multiple discrete devices in series, in parallel, or in a mixed series. The mixed series connection means that at least two of the multiple discrete devices can be connected in series, in parallel, or in other forms of electrical connection.

[0102] The following embodiments list several types of electronic modules 12 . Each type of electronic module 12 has a different electrical connection relationship, and corresponding explanations will be given in the corresponding positions below.

[0103] Based on the above structure, multiple discrete devices can be electrically connected to form the electronic module 12. Multiple discrete devices can be arranged in the housing 11 and electrically connected to form the controller 10.

[0104] The controller 10 provided in the embodiment of the present application is configured such that the electronic module 12 of the controller 10 includes a plurality of electrically connected discrete devices, so that the electronic module 12 is arranged in the housing 11 through the plurality of discrete devices. In this way, on the one hand, the volume of the discrete devices is very small, and the electronic module 12 is composed of a plurality of discrete devices, so that the electronic module 12 is smaller than a standard module, thereby reducing the volume of the electronic module 12. On the other hand, each discrete device can be flexibly arranged in various positions of the housing 11, so that the layout of the electronic module 12 on the housing 11 has high flexibility and is not easily restricted by space, so that the electronic module 12 can fully and effectively utilize the internal space of the controller 10, which helps to improve the space utilization of the controller 10 and enables the internal devices of the controller 10 to be highly integrated. Therefore, the volume of the controller 10 can be reduced, and the volume of the electric drive system 100 can be reduced, thereby reducing the space occupied by the electric drive system 100 in the vehicle 1000. In this way, under the condition that the number of batteries 30 is predetermined, the cabin of vehicle 1000 can be reduced, so that vehicle 1000 can leave as much driving space as possible for passengers. Under the condition that the cabin space is predetermined, the cabin has more space to arrange more batteries 30.

[0105] In addition, the electronic module 12 is configured by a plurality of discrete components, which makes the electronic module 12 highly scalable. Specifically, the expansion of the electronic module 12 can be achieved by increasing or decreasing the number of discrete components. However, the electronic module 12 using standard modules can only be directly replaced with modules of higher or lower specifications, and its scalability is relatively weak. Therefore, the controller 10 provided in the embodiment of the present application has a high scalability and configurability of the electronic module 12, which makes the design of the controller 10 or the electric drive system 100 very flexible, and can be flexibly and conveniently customized, and the manufacturing cost is low.

[0106] In some embodiments, referring to Figures 3 and 4 in conjunction with other figures, the electronic module 12 includes a power module 121. The power module 121 includes a plurality of power devices 1211. The plurality of power devices 1211 are distributed within the housing 11 and are electrically connected. Furthermore, the power devices 1211 are discrete devices.

[0107] The power module 121 is a core component of the controller 10, and is mainly used for power conversion and control circuits. Specifically, the power module 121 can convert direct current into alternating current. Among them, the output end of the power module 121 can be directly or indirectly connected to the motor 20 so as to be able to output the converted alternating current to the motor 20, thereby providing power to the motor 20. In addition, the power module 121 can also convert alternating current into direct current. For example, when the kinetic energy of the vehicle 1000 is recovered, the motor 20 can convert the mechanical energy that drives its rotation into alternating current, and the power module 121 can convert the alternating current into direct current and recharge it into the battery 30.

[0108] The power device 1211 refers to a discrete device in the power module 121 for realizing power conversion and control circuit functions.

[0109] The plurality of power devices 1211 are electrically connected so that the plurality of power devices 1211 can constitute the power module 121 .

[0110] It can be understood that the electronic module 12 includes a power module 121 , the power module 121 includes a plurality of power devices 1211 , and at least some of the above-mentioned discrete devices are power devices 1211 .

[0111] The power module 121 is formed by a plurality of power devices 1211 which are discrete devices. On the one hand, the volume of the discrete devices is very small, which can reduce the volume of the power module 121. On the other hand, each discrete device can be flexibly arranged at various positions of the housing 11, so that the layout of the power module 121 on the housing 11 has high flexibility and is not easily restricted by space, so that the power module 121 can fully and effectively utilize the internal space of the controller 10, which helps to improve the space utilization of the controller 10 and make the internal devices of the controller 10 highly integrated. Therefore, the volume of the controller 10 can be reduced, and the volume of the electric drive system 100 can be reduced to reduce the space occupied by the electric drive system 100 in the vehicle 1000. In addition, the scalability and configurability of the power module 121 are high, which makes the design of the controller 10 or the electric drive system 100 very flexible, and can be flexibly and conveniently customized, and the manufacturing cost is low.

[0112] In some embodiments, please refer to FIG3 and FIG4 together with other drawings. The controller 10 further includes a third connector 15 electrically connected to the power module 121 , and the third connector 15 is also used to electrically connect to the motor 20 .

[0113] The third connector 15 is a conductive connector for achieving electrical connection, wherein the third connector 15 can be composed of a plurality of copper bars or a plug-in connector.

[0114] Such a configuration enables the power module 121 to be used for power conversion and control circuits. Specifically, the power module 121 can convert direct current into alternating current, and output the alternating current to the motor 20 through the third connector 15 to provide power to the motor 20.

[0115] In some embodiments, please refer to Figures 3 to 6 in conjunction with other figures. Figure 5 is a partial perspective structural diagram of a controller 10 provided in some other embodiments of the present application, and Figure 6 is a partial perspective structural diagram of a controller 10 provided in some other embodiments of the present application. The power module 121 also includes a power board 1212, which is disposed in the housing 11 and has a plurality of power devices 1211 disposed on the power board 1212.

[0116] The power board 1212 is a circuit board of the power module 121. The power board 1212 can be a flexible circuit board or a rigid circuit board.

[0117] The plurality of power devices 1211 are disposed on the power board 1212 , so that the power devices 1211 are electrically connected to the power board 1212 .

[0118] By arranging the power device 1211 on the power board 1212 to form the power module 121, on the one hand, the power module 121 has a smaller volume, which is conducive to effectively and fully utilizing the internal space of the controller 10, thereby helping to reduce the volume of the controller 10 and the electric drive system 100. On the other hand, it makes the manufacturing process of the power module 121 very simple and low-cost. In addition, by arranging the power device 1211 on the power board 1212, the layout of the power module 121 is highly flexible, and the internal space of the controller 10 can be fully and effectively utilized, thereby helping to reduce the volume of the controller 10.

[0119] In some embodiments, the power device 1211 may be packaged on the power board 1212 using surface mount technology (SMT).

[0120] Such an arrangement makes the manufacturing process and expansion process of the power module 121 very simple and low-cost.

[0121] In some embodiments, please refer to FIG. 3 to FIG. 6 together with other drawings. The controller 10 further includes a control board 13 , and the power board 1212 and the control board 13 are electrically connected via a first connector 14 .

[0122] The control board 13 is a circuit board of the controller 10, and is mainly used to provide control signals to the power module 121 so that the power module 121 can perform power conversion and circuit control based on the control signals. The control board 13 can be a flexible circuit board or a rigid circuit board.

[0123] The first connector 14 is a conductive connector for achieving electrical connection, specifically for achieving electrical connection between the power board 1212 and the control board 13. The first connector 14 can be an inter-board connector, a wiring harness, a copper busbar, etc.

[0124] As shown in Figures 3 to 6, the first connector 14 is disposed on the power board 1212 and is electrically connected to the power board 1212. The first connector 14 is also electrically connected to the control board 13 to achieve an electrical connection between the power board 1212 and the control board 13, that is, to achieve an electrical connection between the power module 121 and the control board 13.

[0125] The control board 13 and the power board 1212 are electrically connected via the first connector 14 to achieve electrical connection between the power module 121 and the control board 13. Based on this, the power module 121 can convert direct current into alternating current under the control of the control board 13 and output the alternating current to the motor 20.

[0126] In some embodiments, please refer to Figure 6 in conjunction with other figures. Figure 5 is a partial perspective structural diagram of a controller 10 provided in some other embodiments of the present application. The power board 1212 includes multiple sub-boards 12121, which are spaced apart from each other in the housing 11. The multiple power devices 1211 are separately disposed on the multiple sub-boards 12121.

[0127] The sub-board 12121 is a circuit board of the power module 121 , and multiple sub-boards 12121 constitute the power board 1212 .

[0128] The plurality of power devices 1211 are separately arranged on the plurality of sub-boards 12121 , so that each sub-board 12121 is provided with a power device 1211 , and the number of the power devices 1211 on each sub-board 12121 can be one or more.

[0129] The power device 1211 on the daughter board 12121 is electrically connected to the daughter board 12121 .

[0130] The power board 1212 includes multiple sub-boards 12121, and multiple power devices 1211 are divided into multiple sub-boards 12121, so that each sub-board 12121 and the power devices 1211 thereon can be flexibly arranged in the housing 11, so that the layout flexibility of the power module 121 in the controller 10 is higher, which helps to fully and effectively utilize the internal space of the controller 10 to reduce the volume of the controller 10.

[0131] As an example, as shown in FIG6 , the power board 1212 includes three sub-boards 12121, each of which is provided with a plurality of the aforementioned power devices 1211. It is understood that the plurality of power devices 1211 are divided into three parts, each of which is provided on a corresponding sub-board 12121 and electrically connected to the sub-board 12121. Furthermore, the three sub-boards 12121 are provided in parallel, so that the three power devices 1211 are connected in parallel.

[0132] It should be noted that, referring to FIG6 and FIG3 , each daughter board 12121 may be provided with the aforementioned first connector 14 , and the first connector 14 on each daughter board 12121 is electrically connected to the control board 13 , so that each daughter board 12121 can be electrically connected to the control board 13 through the corresponding first connector 14 .

[0133] In some embodiments, please refer to Figures 7 and 8 together, in conjunction with other figures. Figure 7 is a partial perspective structural diagram of an electric drive system 100 provided in some further embodiments of the present application, and Figure 8 is a partial perspective structural diagram of a controller 10 of the electric drive system 100 shown in Figure 7 . The housing 11 is provided with a boss 111, and a power device 1211 is disposed on the boss 111.

[0134] It is understandable that the power module 121 may not be provided with the power board 1212 , that is, the power device 1211 may not be provided on the power board 1212 , but may be directly provided on the boss 111 of the housing 11 .

[0135] Such a configuration can reduce the use of the power board 1212, help reduce the volume of the power module 121, and also help improve the layout flexibility of the power module 121 on the housing 11, thereby improving the space utilization of the controller 10, helping to reduce the volume of the controller 10, and further reducing the volume of the electric drive system 100, so as to reduce the space occupied by the electric drive system 100 in the vehicle 1000.

[0136] In some embodiments, please refer to FIG7 and FIG8 together with other drawings. The controller 10 further includes a control board 13 , and the power device 1211 is plugged into the control board 13 .

[0137] As shown in FIG. 7 , the pins of the power device 1211 are plugged into the control board 13 to achieve electrical connection between the power device 1211 and the control board 13 .

[0138] By plugging the power device 1211 into the control board 13 , an electrical connection between the power device 1211 and the control board 13 is achieved, that is, an electrical connection between the power module 121 and the control board 13 is achieved.

[0139] In some embodiments, referring to FIG. 3 to FIG. 8 in conjunction with other figures, the plurality of power devices 1211 are divided into three groups, and the three groups of power devices 1211 are arranged in parallel. Each group of power devices 1211 includes a plurality of power devices 1211 , and the plurality of power devices 1211 in each group are electrically connected.

[0140] As an example, as shown in Figures 3 to 8, each group of multiple power devices 1211 is divided into a first power device 1211a and a second power device 1211b. The first power device 1211a and the second power device 1211b of each group are connected to each other through a second connector 1213 to be connected to the third connector 15. Specifically, the second connector 1213 is connected to the first power device 1211a and the second power device 1211b respectively to achieve the connection of each group of power devices 1211.

[0141] When there are multiple first power devices 1211a, the multiple first power devices 1211a are arranged in parallel. When there are multiple second power devices 1211b, the multiple second power devices 1211b are arranged in parallel. Furthermore, in each group of multiple power devices 1211, the multiple first power devices 1211a connected in parallel form a whole, and the multiple second power devices 1211b connected in parallel form a whole, are combined via the second connector 1213 to converge to the third connector 15. That is, the multiple first power devices 1211a in each group constitute the upper arm of the group of power devices 1211, and the multiple second power devices 1211b in each group constitute the lower arm of the group of power devices 1211.

[0142] As shown in Figures 3 to 8, a fourth connector 16 is provided between the second connector 1213 and the third connector 15. The fourth connector 16 is electrically connected to the second connector 1213 and is also connected to the third connector 15, so that each group of power devices 1211 can be converged to the third connector 15, and the three groups of power devices 1211 are arranged in parallel. The second connector 1213 and the fourth connector 16 can both be conductive connectors for achieving electrical connection, such as inter-board connectors, wiring harnesses, copper busbars, etc.

[0143] With this arrangement, the multiple power devices 1211 are divided into three groups, and the three groups of power devices 1211 are arranged in parallel, so that the power module 121 can be used for power conversion and control circuits.

[0144] In some embodiments, referring to FIG. 3 to FIG. 8 in conjunction with other figures, at least one group of power devices 1211 is divided into a first power device 1211a and a second power device 1211b. In the group of power devices 1211, the number of first power devices 1211a and the number of second power devices 1211b are both plural.

[0145] In some possible designs, as shown in FIG4 , FIG6 and FIG8 , at least one group of multiple first power devices 1211a are spaced apart along a straight line; or, as shown in FIG5 , at least one group of multiple power devices 1211 are spaced apart along a curve.

[0146] In other possible designs, as shown in FIG4 , FIG6 and FIG8 , at least one group of multiple second power devices 1211b are distributed along a straight line; or, as shown in FIG5 , at least one group of multiple second power devices 1211b are distributed along a curve.

[0147] In yet other possible designs, as shown in Figures 4, 6, and 8, at least one group of multiple first power devices 1211a is spaced apart along a straight line; or, as shown in Figure 5, at least one group of multiple power devices 1211 is spaced apart along a curved line. Furthermore, as shown in Figures 4, 6, and 8, at least one group of multiple second power devices 1211b is spaced apart along a straight line; or, as shown in Figure 5, at least one group of multiple second power devices 1211b is spaced apart along a curved line.

[0148] It should be noted that the multiple first power devices 1211a in each group can constitute the upper bridge arm of the group of power devices 1211, and correspondingly, the multiple second power devices 1211b in the group constitute the lower bridge arm of the group of power devices 1211. Of course, the multiple first power devices 1211a in each group and some of the second power devices 1211b in the group can also constitute the upper bridge arm of the group of power devices 1211, and the remaining second power devices 1211b in the group constitute the lower bridge arm of the group of power devices 1211.

[0149] By allowing each group of multiple first power devices 1211a to be spaced apart along a straight line or curve, and each group of multiple second power devices 1211b to be spaced apart along a straight line or curve, the layout flexibility of each group of power devices 1211 is very high. This helps improve the integration of the internal components of the controller 10, thereby improving the space utilization of the controller 10, thereby reducing the size of the controller 10, and further reducing the size of the electric drive system 100, thereby reducing the space occupied by the electric drive system 100 within the vehicle 1000. It also helps improve the scalability and configurability of the power module 121.

[0150] In some embodiments, please refer to FIG4 and FIG5 together, and in conjunction with other drawings, each group of power devices 1211 is divided into a first power device 1211a and a second power device 1211b.

[0151] In some possible designs, as shown in FIG. 4 , the three groups of first power devices 1211 a are distributed along a straight line at intervals; or, as shown in FIG. 5 , the three groups of first power devices 1211 a are distributed along a curved line at intervals.

[0152] In some other possible designs, as shown in FIG. 4 , the three groups of second power devices 1211 b are distributed along a straight line at intervals; or, as shown in FIG. 4 , the three groups of second power devices 1211 b are distributed along a curved line at intervals.

[0153] In yet other possible designs, as shown in FIG4 , the three groups of first power devices 1211a are spaced apart along a straight line; or, as shown in FIG5 , the three groups of first power devices 1211a are spaced apart along a curve. Furthermore, as shown in FIG4 , the three groups of second power devices 1211b are spaced apart along a straight line; or, as shown in FIG5 , the three groups of second power devices 1211b are spaced apart along a curve.

[0154] This arrangement allows for a flexible layout of the three groups of power devices 1211 on the housing 11. This helps improve the integration of the internal components of the controller 10, thereby increasing the space utilization of the controller 10. This reduces the size of the controller 10, and in turn, the size of the electric drive system 100, thereby reducing the space occupied by the electric drive system 100 within the vehicle 1000. Furthermore, this improves the scalability and configurability of the power module 121.

[0155] In some embodiments, please refer to FIG. 3 to FIG. 8 in conjunction with other figures. The electronic module 12 further includes a bus capacitor 122 . The bus capacitor 122 is disposed in the housing 11 and is electrically connected to the power module 121 .

[0156] The bus capacitor 122 is an electronic device used to stabilize voltage and ensure circuit stability to a certain extent.

[0157] When the controller 10 is working, the DC power can pass through the bus capacitor 122 and the power module 121 in sequence, and then be output to the motor 20 through the second connector 1213 , the fourth connector 16 and the third connector 15 in sequence.

[0158] Such an arrangement enables the bus capacitor 122 to stably output direct current to the power module 121 , so that the power module 121 can convert the direct current into alternating current and output it to the motor 20 .

[0159] In some embodiments, referring to Figures 3 to 6 in conjunction with other figures, the power module 121 further includes the aforementioned power board 1212, which is disposed in the housing 11. The power device 1211 is disposed on the power board 1212, and the bus capacitor 122 is electrically connected to the power board 1212.

[0160] Specifically, as shown in Figures 3 to 6, a fifth connector 17 is provided between the bus capacitor 122 and the power module 121. The fifth connector 17 is electrically connected to the bus capacitor 122 and the power board 1212 respectively to achieve electrical connection between the bus capacitor 122 and the power board 1212.

[0161] In this configuration, when the power module 121 is provided with a power board 1212 , the bus capacitor 122 can be electrically connected to the power board 1212 to achieve electrical connection between the bus capacitor 122 and the power module 121 .

[0162] Alternatively, in other embodiments, referring to Figures 7 and 8 in conjunction with other figures, the multiple power devices 1211 are divided into three groups, and the three groups of power devices 1211 are arranged in parallel. Each group of power devices 1211 includes multiple power devices 1211, and the multiple power devices 1211 in each group are combined through a second connector 1213, and the bus capacitor 122 is electrically connected to the second connector 1213.

[0163] Specifically, as shown in Figures 7 and 8, a fifth connector 17 is provided between the bus capacitor 122 and the power module 121. The fifth connector 17 is electrically connected to the bus capacitor 122 and the second connector 1213 respectively to achieve electrical connection between the bus capacitor 122 and the second connector 1213.

[0164] With this configuration, when the power module 121 is not provided with the power board 1212 , the bus capacitor 122 can be electrically connected to the second connector 1213 to achieve electrical connection between the bus capacitor 122 and the power module 121 .

[0165] It is understood that the bus capacitor 122 and the power module 121 can be electrically connected via the fifth connector 17. Specifically, the fifth connector 17 is electrically connected to the power module 121, and the fifth connector 17 is electrically connected to the bus capacitor 122. The fifth connector 17 and the power module 121 are electrically connected, specifically, the fifth connector 17 and the power board 1212 can be electrically connected; or, the fifth connector 17 and the second connector 1213 can be electrically connected.

[0166] The fifth connector 17 is a conductive connector for achieving electrical connection, and may be, for example, an inter-board connector, a wiring harness, a copper busbar, or the like.

[0167] It should be noted that when the power module 121 is provided with a power board 1212, the multiple power devices 1211 in each group can also be converged through the second connector 1213. Specifically, the second connector 1213 is provided on the power board 1212 so that the second connector 1213 can achieve convergence of the multiple power devices 1211 in each group.

[0168] Based on the above structure, the multiple power devices 1211 in each group can be divided into a first power device 1211a and a second power device 1211b, and the second connector 1213 is electrically connected to the first power device 1211a and the second power device 1211b respectively to achieve convergence of the multiple power devices 1211 in each group.

[0169] In some embodiments, the bus capacitor 122 includes a plurality of capacitor devices (not shown), the plurality of capacitor devices are connected in parallel, and the capacitor devices are discrete devices.

[0170] The capacitor device is a main electronic device of the bus capacitor 122 . It can be understood that a plurality of capacitor devices are connected in parallel to form the bus capacitor 122 .

[0171] It can be understood that at least some of the above-mentioned discrete devices are capacitive devices.

[0172] The bus capacitor 122 is electrically connected to the power module 121. Specifically, a plurality of capacitor components connected in parallel form an integral body electrically connected to the power module 121. The integral body formed by the plurality of capacitor components connected in parallel is connected to the fifth connector 17, and the fifth connector 17 is connected to the power board 1212 or the second connector 1213 of the power module 121, thereby achieving an electrical connection between the bus capacitor 122 and the power module 121.

[0173] By configuring the bus capacitor 122 to include a plurality of capacitor devices arranged in parallel, and the capacitor devices being discrete devices, on the one hand, the bus capacitor 122 has a smaller volume, thereby helping to improve the space utilization of the controller 10 to reduce the volume of the controller 10. On the other hand, each capacitor device can be flexibly arranged at various positions of the housing 11, so that the layout of the bus capacitor 122 on the housing 11 has high flexibility and is not easily restricted by space, so that the bus capacitor 122 can fully and effectively utilize the internal space of the controller 10, which helps to improve the space utilization of the controller 10 and allows the internal devices of the controller 10 to be highly integrated. Therefore, the volume of the controller 10 can be reduced, and the volume of the electric drive system 100 can be reduced to reduce the space occupied by the electric drive system 100 in the vehicle 1000. In addition, the configuration of the discrete devices makes the bus capacitor 122 highly scalable and configurable, thereby making the design of the controller 10 or the electric drive system 100 very flexible, and can be flexibly and conveniently customized, and with low manufacturing cost.

[0174] In some embodiments, please refer to Figures 3 to 9 in conjunction with other figures. Figure 9 is a partial perspective structural diagram of the housing 11 of the controller 10 provided in some embodiments of the present application, viewed from one perspective. The housing 11 has a first surface 1103, on which the power module 121 is disposed. The first surface 1103 has a receiving slot 1104 spaced apart from the power module 121, and at least a portion of the busbar capacitor 122 is disposed within the receiving slot 1104.

[0175] The first surface 1103 refers to the surface of the housing 11 for arranging the power module 121 .

[0176] The receiving groove 1104 is a groove provided on the first surface 1103 for receiving at least a portion of the bus capacitor 122 .

[0177] Such a setting can make the heights of the power module 121 and the bus capacitor 122 on the housing 11 as similar as possible, which is beneficial to the layout of the power module 121 and the bus capacitor 122 on the housing 11, thereby helping to improve the integration of the internal devices of the controller 10 and reduce the volume of the controller 10.

[0178] In some embodiments, please refer to Figure 10 in conjunction with other figures. Figure 10 is a partial perspective structural diagram of the housing 11 of the controller 10 provided in some embodiments of the present application, viewed from another angle. Housing 11 is provided with a liquid cooling tank 1101, which is isolated from the electronic module 12 and is used to circulate coolant for heat exchange with the electronic module 12.

[0179] The liquid cooling tank 1101 is a tank provided on the housing 11 for implementing liquid cooling.

[0180] Specifically, the coolant can flow in and out of the liquid cooling tank 1101 to circulate within the liquid cooling tank 1101. When the coolant circulates within the liquid cooling tank 1101, it can exchange heat with the electronic modules 12, such as the power module 121 and the bus capacitor 122, thereby cooling the electronic modules 12.

[0181] The isolation of the liquid cooling tank 1101 from the electronic module 12 means that liquid isolation can be achieved between the liquid cooling tank 1101 and the electronic module 12. Specifically, the coolant circulating in the liquid cooling tank 1101 is isolated from the electronic module 12 to prevent the coolant from directly entering the electronic module 12 as much as possible.

[0182] With such an arrangement, the electronic module 12 can be cooled.

[0183] In some embodiments, referring to FIG10 and other figures, a plurality of heat sinks 114 are disposed in the liquid cooling tank 1101 , and the plurality of heat sinks 114 are distributed at intervals.

[0184] The heat sink 114 is a component capable of dissipating heat. As shown in Figure 10, the heat sink 114 is a needle-shaped structure. Of course, the heat sink 114 can also be configured as a fin or other shape.

[0185] With this arrangement, on the one hand, the heat sink 114 can dissipate the heat of the coolant that exchanges heat with the electronic module 12, thereby effectively dissipating heat from the electronic module 12. On the other hand, the provision of multiple, spaced heat sinks 114 can achieve turbulent flow of the coolant within the liquid cooling tank 1101, thereby enabling the coolant to fully exchange heat with the electronic module 12, thereby improving the heat dissipation effect of the electronic module 12.

[0186] In some embodiments, referring to FIG. 2 and in conjunction with other drawings, the housing 11 includes a first shell 112 and a second shell 113 , and at least a portion of the electronic module 12 is disposed in a space enclosed by the first shell 112 and the second shell 113 .

[0187] The first shell 112 and the second shell 113 are the shell structure of the outer shell 11 . It can be understood that the first shell 112 and the second shell 113 constitute the outer shell 11 .

[0188] By disposing at least a portion of the electronic module 12 in the space enclosed by the first shell 112 and the second shell 113 , a protective effect for the electronic module 12 can be achieved.

[0189] In some embodiments, the controller 10 may further include a sixth connector (not shown), which is a component for achieving electrical connection. The sixth connector is electrically connected to the bus capacitor 122 and is used to connect to a DC power source such as the battery 30.

[0190] In some embodiments, please refer to FIG. 3 to FIG. 8 in conjunction with other drawings. The controller 10 may further include a filter component 18 , which is electrically connected between the sixth connector and the bus capacitor 122 .

[0191] The filter component 18 is an energy storage device used to reduce the AC ripple coefficient and improve the efficient and smooth DC output. As an example, the filter component 18 includes a filter capacitor.

[0192] Based on the above structure, the DC power of a DC power source such as the battery 30 can be transmitted to the power module 121 in sequence through the sixth connector, the filter component 18, the bus capacitor 122 and the fifth connector 17, and converted into AC power through the power module 121. The AC power is transmitted to the motor 20 in sequence through the second connector 1213, the fourth connector 16 and the third connector 15 to provide power to the motor 20.

[0193] Based on the above concept, please refer to Figure 2 and other accompanying drawings. The electric drive system 100 provided in the embodiment of the present application includes a controller 10. The controller 10 involved in the embodiment of the present application is the same as the controller 10 in the above embodiments, and the details can be referenced and will not be repeated here.

[0194] The electric drive system 100 provided in the embodiment of the present application, by adopting the controller 10 involved in the above embodiments, can reduce the volume of the controller 10, and then reduce the volume of the electric drive system 100, so as to reduce the space occupied by the electric drive system 100 in the vehicle 1000. In this way, under the condition that the number of batteries 30 is predetermined, the cabin of the vehicle 1000 can be reduced, so that the vehicle 1000 can leave as large a driving compartment as possible for the passengers. Under the condition that the space in the cabin is predetermined, the cabin has a larger space to arrange more batteries 30.

[0195] In some embodiments, please refer to FIG2 , FIG3 and FIG7 together with other drawings. The electric drive system 100 further includes a motor 20 , and the controller 10 is disposed on an end surface of the motor 20 along the axial direction.

[0196] The axial direction refers to the axial direction of the motor 20 , specifically the Z axis as shown in the figure.

[0197] It can be understood that the housing 11 of the controller 10 is disposed on the end surface of the motor 20 along the axial direction, so that the entire controller 10 is located on the end surface of the motor 20 along the axial direction.

[0198] In some cases, the controller 10 is disposed on a radially lateral side of the motor 20, specifically above the motor 20. Thus, in the electric drive system 100, the space on the axial end face of the motor 20 is not utilized and is wasted, resulting in a larger volume of the electric drive system 100.

[0199] The electric drive system 100 provided in the embodiment of the present application includes a plurality of electrically connected discrete devices through the electronic module 12 of the controller 10, so that the volume of the controller 10 is smaller. In addition, the arrangement of the discrete devices in the controller 10 is very flexible, so that the outer shape of the controller 10 is also relatively flexible. In this way, the controller 10 can be arranged on the end face of the motor 20 in the axial direction. By setting the controller 10 on the end face of the motor 20 in the axial direction, the controller 10 can fully utilize the space at the end face of the motor 20 in the axial direction. Specifically, the controller 10 can occupy the space of the electric drive system 100 at the end face of the motor 20 in the axial direction to reduce the space waste of the electric drive system 100 at the end face of the motor 20 in the axial direction, so that the space utilization rate of the electric drive system 100 can be improved, thereby reducing the volume of the electric drive system 100 to reduce the space occupied by the electric drive system 100 on the vehicle 1000.

[0200] Moreover, by setting the controller 10 on the axial end face of the motor 20 rather than above the motor 20 , the center of gravity of the controller 10 can be lowered, and thereby the center of gravity of the entire electric drive system 100 can be lowered, thereby improving the dynamic performance of the vehicle 1000 .

[0201] As can be understood, the first shell 112 of the housing 11 is disposed on an axial end surface of the motor 20. Along the axial direction of the motor 20, the power module 121 is disposed on a side surface of the first shell 112 that is away from the motor 20. That is, the side surface of the first shell 112 that is away from the motor 20 along the axial direction of the motor 20 is the aforementioned first surface 1103.

[0202] In some embodiments, please refer to FIG. 2 to FIG. 6 in conjunction with other drawings. The electronic module 12 includes a power module 121 . The power module 121 includes a power board 1212 disposed in the housing 11 . The power board 1212 intersects the axial direction of the motor 20 .

[0203] The power board 1212 intersects the axial direction of the motor 20 , which means that the thickness direction of the power board 1212 intersects the axial direction of the motor 20 .

[0204] Intersection means that the two directions are not parallel. It can be understood that the two directions can form an angle greater than 0° and less than 180°. Among them, the thickness direction of the power plate 1212 and the axial direction of the motor 20 can be perpendicular to each other or not. The thickness direction of the power plate 1212 and the axial direction of the motor 20 can be directions that intersect on the same plane, or can be directions on different planes, and the projection of the thickness direction of the power plate 1212 on the plane where the axial direction of the motor 20 is located can intersect with the axial direction of the motor 20.

[0205] As an example, as shown in the figure, the power board 1212 is perpendicular to the axial direction of the motor 20 .

[0206] By axially crossing the power plate 1212 and the motor 20, the deformation and bending direction of the power plate 1212 can be made inconsistent with the vibration direction of the vehicle 1000 in daily working conditions as much as possible, thereby improving the reliability of the power plate 1212 and further improving the reliability of the electric drive system 100.

[0207] In some embodiments, please refer to Figures 2, 3, and 7 together with other figures. The controller 10 further includes a control board 13 disposed in the housing 11. The control board 13 is electrically connected to the electronic module 12 and intersects the axis of the motor 20.

[0208] The control board 13 and the motor 20 intersect in the axial direction, which means that the thickness direction of the control board 13 intersects in the axial direction of the motor 20 .

[0209] Intersecting means that the two directions are not parallel. It is understood that the two directions can form an angle greater than 0° and less than 180°. The thickness direction of the control board 13 and the axial direction of the motor 20 can be perpendicular to each other or not. The thickness direction of the control board 13 and the axial direction of the motor 20 can be directions intersecting on the same plane or on different planes. The projection of the thickness direction of the control board 13 on the plane where the axial direction of the motor 20 is located can intersect with the axial direction of the motor 20.

[0210] As an example, as shown in the figure, the control board 13 is perpendicular to the axial direction of the motor 20 .

[0211] By axially crossing the control board 13 and the motor 20, the deformation and bending direction of the control board 13 can be made inconsistent with the vibration direction of the vehicle 1000 in daily working conditions as much as possible, thereby improving the reliability of the control board 13 and further improving the reliability of the electric drive system 100.

[0212] In some embodiments, referring to FIG2 and other figures, the electric drive system 100 further includes a transmission 40 , wherein the transmission 40 and the controller 10 are respectively disposed at opposite ends of the motor 20 along the axial direction.

[0213] It can be understood that the transmission 40 is arranged on one end surface of the motor 20 along the axial direction, and the controller 10 is arranged on the other end surface of the motor 20 along the axial direction.

[0214] Such an arrangement enables the transmission 40 , motor 20 , controller 10 and other structures of the electric drive system 100 to be highly integrated, thereby reducing the volume of the electric drive system 100 , thereby reducing the space occupied by the electric drive system 100 on the vehicle 1000 .

[0215] In some embodiments, referring to Figures 2, 3, 7, and 10 in conjunction with other figures, the housing 11 is provided with a cooling tank 1101 for circulating coolant. Along the axial direction of the motor 20, the cooling tank 1101 is provided between the electronic module 12 and the motor 20.

[0216] By providing the liquid cooling tank 1101 between the electronic module 12 and the motor 20 in the axial direction of the motor 20, the coolant in the liquid cooling tank 1101 can exchange heat not only with the electronic module 12 but also with the motor 20. In other words, the liquid cooling tank 1101 of the controller 10 can be used to cool both the controller 10 and the end of the motor 20 near the controller 10 in the axial direction, thereby reducing the cooling system of the motor 20 and also helping to reduce the volume of the electric drive system 100.

[0217] In some embodiments, referring to Figures 2, 3, 7, and 10 in conjunction with other figures, the liquid cooling tank 1101 has an opening 1102 along the axial direction of the motor 20 on a side away from the electronic module 12. The end face of the motor 20 axially facing the controller 10 covers the opening 1102.

[0218] As will be understood, the housing 11 includes a first housing 112. Along the axial direction of the motor 20, at least a portion of the electronic module 12 is disposed on one side of the first housing 112, and the liquid cooling tank 1101 is disposed on the other side of the first housing 112. Furthermore, the end surface of the motor 20 is disposed on the other side of the first housing 112 to cover an opening 1102 of the liquid cooling tank 1101 on the other side of the first housing 112.

[0219] This arrangement allows the coolant in the liquid cooling tank 1101 to directly contact the axial end surface of the motor 20, resulting in a high cooling effect on the motor 20. Furthermore, the integration between the housing 11 of the controller 10 and the motor 20 can be improved, thereby helping to reduce the size of the electric drive system 100.

[0220] Based on the above concept, please refer to Figure 1 and other accompanying drawings. The electric device provided in the embodiment of the present application includes an electric drive system 100. Among them, the electric drive system 100 involved in the embodiment of the present application is the same as the electric drive system 100 in the above embodiments. Please refer to the details and do not repeat them here.

[0221] The electric device provided in the embodiment of the present application, by adopting the electric drive system 100 involved in the above embodiments, can reduce the volume of the controller 10, and then reduce the volume of the electric drive system 100, so as to reduce the space occupied by the electric drive system 100 in the electric device. In this way, under the condition that the number of batteries 30 is predetermined, the cabin of the electric device can be reduced, so that the electric device can leave as large a driving compartment as possible for the passengers. Under the condition that the space in the cabin is predetermined, the cabin has a larger space to arrange more batteries 30.

[0222] As one of the embodiments of the present application, please refer to Figures 2 to 6. The electric drive system 100 includes a motor 20 and a controller 10. The controller 10 is arranged on the axial end face of the motor 20. The controller 10 includes a housing 11 and a power module 121. The housing 11 is arranged on the axial end face of the motor 20. In the axial direction of the motor 20, the power module 121 is arranged on the side of the housing 11 away from the motor 20. The power module 121 includes a power board 1212 and a plurality of power devices 1211. The power board 1212 is arranged on the axial side of the housing 11 away from the motor 20, and the plurality of power devices 1211 are all arranged on the power board 1212. In addition, the power device 1211 is a discrete device.

[0223] The above are merely optional embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various modifications and variations. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present application should be included within the scope of the claims of the present application.

Claims

1. A controller (10), wherein, Comprising: A housing (11); An electronic module (12), including a plurality of discrete devices distributed in the housing (11) and electrically connected.

2. The controller (10) according to claim 1, wherein, The electronic module (12) includes a power module (121), and the power module (121) includes a plurality of power devices (1211) distributed in the housing (11) and electrically connected, and the power devices (1211) are discrete devices.

3. The controller (10) according to claim 2, wherein, The power module (121) further includes a power board (1212) disposed in the housing (11), and a plurality of the power devices (1211) are disposed on the power board (1212).

4. The controller (10) according to claim 3, wherein, The controller (10) further includes a control board (13), and the power board (1212) and the control board (13) are electrically connected through a first connector (14).

5. The controller (10) according to claim 3 or 4, wherein, The power board (1212) includes a plurality of sub-boards (12121) spaced apart in the housing (11), and a plurality of the power devices (1211) are respectively disposed on the plurality of sub-boards (12121).

6. The controller (10) according to claim 2, wherein, The housing (11) is provided with a boss (111), and the power device (1211) is disposed on the boss (111).

7. The controller (10) according to claim 6, wherein, The controller (10) further includes a control board (13), and the power device (1211) is plugged on the control board (13).

8. The controller (10) according to any one of claims 2-7, wherein, A plurality of the power devices (1211) are divided into three groups, and the three groups of the power devices (1211) are connected in parallel, and each group of the power devices (1211) includes a plurality of the power devices (1211) electrically connected.

9. The controller (10) according to claim 8, wherein, At least one group of the power devices (1211) is divided into a plurality of first power devices (1211a) and a plurality of second power devices (1211b); at least one group of the plurality of first power devices (1211a) is spaced apart along a straight line or a curve, and / or, at least one group of the plurality of second power devices (1211b) is spaced apart along a straight line or a curve.

10. The controller (10) according to any one of claims 2-9, wherein, The electronic module (12) further includes a bus capacitor (122) disposed in the housing (11), and the bus capacitor (122) is electrically connected to the power module (121).

11. The controller (10) according to claim 10, wherein, The power module (121) further includes a power board (1212) disposed in the housing (11), the power device (1211) is disposed on the power board (1212), and the bus capacitor (122) is electrically connected to the power board (1212); Or, a plurality of the power devices (1211) are divided into three groups, the three groups of the power devices (1211) are connected in parallel, each group of the power devices (1211) includes a plurality of the power devices (1211), the plurality of the power devices (1211) in each group are converged through a second connector (1213), and the bus capacitor (122) is electrically connected to the second connector (1213).

12. The controller (10) according to claim 10 or 11, wherein, The bus capacitor (122) includes a plurality of capacitor devices connected in parallel, and the capacitor devices are discrete devices.

13. The controller (10) according to any one of claims 10 - 12, wherein, The housing (11) is provided with a first surface (1103), the power module (121) is disposed on the first surface (1103), and the first surface (1103) is provided with receiving grooves (1104) spaced apart from the power module (121), and at least a part of the bus capacitor (122) is disposed in the receiving grooves (1104).

14. The controller (10) according to any one of claims 1-13, wherein, The housing (11) is provided with a liquid cooling tank (1101) isolated from the electronic module (12), and the liquid cooling tank (1101) is used for circulating a coolant for heat exchange with the electronic module (12).

15. The controller (10) according to claim 14, wherein, A plurality of heat dissipation members (114) are disposed in the liquid cooling tank (1101) at intervals.

16. The controller (10) according to any one of claims 1-15, wherein, The housing (11) includes a first housing (112) and a second housing (113), and at least a part of the electronic module (12) is disposed in a space formed by enclosing the first housing (112) and the second housing (113).

17. An electric drive system (100), wherein, Including the controller (10) according to any one of claims 1-16.

18. The electric drive system (100) according to claim 17, wherein, The electric drive system (100) further includes a motor (20), and the controller (10) is disposed on an end face of the motor (20) along the axial direction.

19. The electric drive system (100) according to claim 18, wherein, The electronic module (12) includes a power module (121), the power module (121) includes a power board (1212) disposed on the housing (11), and the power board (1212) intersects the axial direction of the motor (20).

20. The electric drive system (100) according to claim 18 or 19, wherein, The controller (10) further includes a control board (13) disposed on the housing (11), the control board (13) is electrically connected to the electronic module (12), and the control board (13) intersects the axial direction of the motor (20).

21. The electric drive system (100) according to any one of claims 18 - 20, wherein, The electric drive system (100) further includes a transmission (40), and the transmission (40) and the controller (10) are respectively disposed at opposite ends of the motor (20) along the axial direction.

22. The electric drive system (100) according to any one of claims 18 - 21, wherein, The housing (11) is provided with a liquid cooling tank (1101) for circulating a coolant, and along the axial direction of the motor (20), the liquid cooling tank (1101) is disposed between the electronic module (12) and the motor (20).

23. The electric drive system (100) according to claim 22, wherein, Along the axial direction of the motor (20), one side of the liquid cooling tank (1101) away from the electronic module (12) has an opening (1102), and an end face of the motor (20) along the axial direction facing the controller (10) covers the opening (1102).

24. An electric device, wherein, Including the electric drive system (100) according to any one of claims 17-23.

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