Electric drive device, electric drive system and electric device

Abstract

The application is suitable for the technical field of electric machines, and provides an electric driving device, an electric driving system and an electric device, which comprise a first electric machine, a second electric machine and a control assembly, the control assembly is connected to the first electric machine and the second electric machine, and is arranged between the first electric machine and the second electric machine; in a second direction perpendicular to a first direction, the size of the control assembly is less than or equal to the size of the first electric machine, and / or the size of the control assembly is less than or equal to the size of the second electric machine; in the electric driving device provided by the application, the size of the control assembly in the second direction is less than or equal to the size of the first electric machine and / or the second electric machine in the second direction, at this time, the appearance and the space occupation of the electric driving device mainly depend on the first electric machine and the second electric machine, thereby the space occupation of the control assembly is reduced, the negative influence caused by the installation of the control assembly on the electric driving device is reduced, and then the space occupation of the electric driving device can be reduced.

Description

Technical Field

[0001] This application belongs to the field of motor technology, and in particular relates to an electric drive device, an electric drive system, and an electrical device. Background Technology

[0002] In recent years, the new energy vehicle sector has developed rapidly. As one of the core components of new energy vehicles, the electric drive system's driving characteristics determine the main performance indicators of vehicle operation. Simultaneously, with the development of distributed drive control technology, more and more dual-motor electric drive systems are being researched and implemented. Currently, the control components in dual-motor electric drive systems occupy a significant amount of space, easily encroaching on other structural and passenger space. Utility Model Content

[0003] In view of the above problems, this application provides an electric drive device, an electric drive system, and an electrical device, which can alleviate the problem of large space occupation of control components in current electric drive systems.

[0004] In a first aspect, this embodiment provides an electric drive device, comprising:

[0005] A first motor and a second motor are arranged along a first direction; a control component is connected to the first motor and the second motor and disposed between the first motor and the second motor; in a second direction perpendicular to the first direction, the size of the control component is less than or equal to that of the first motor, and / or the size of the control component is less than or equal to that of the second motor.

[0006] In the technical solution of this embodiment, the size of the control component in the second direction is less than or equal to the size of the first motor and / or the second motor in the second direction, so that at least part of the control component can be located within the space covered by the first motor or the second motor. At this time, the shape and space occupation of the electric drive device mainly depend on the first motor and the second motor, thereby reducing the space occupation of the control component, reducing the negative impact of the control component on the installation of the electric drive device, and thus reducing the space occupation of the electric drive device.

[0007] In some embodiments, in a third direction perpendicular to the first direction, the size of the control component is less than or equal to the size of the first motor and / or the second motor; the second direction is set at an angle to the third direction.

[0008] In the technical solution of this embodiment, the size of the control component in the third direction is also smaller than or equal to the size of the first motor and / or the second motor in the third direction, so as to further reduce the space occupation of the control component, reduce the negative impact of the control component on the installation of the electric drive device, and reduce the space occupation of the electric drive device.

[0009] In some embodiments, on a projection plane perpendicular to the first direction, the projection of the control component falls within the projection of the first motor, and / or the projection of the control component falls within the projection of the second motor.

[0010] In the technical solution of this embodiment, the control component is completely located within the space covered by the first motor and the second motor. At this time, the shape and space occupation of the drive device depend on the first motor and the second motor, which better reduces the negative impact of the control component on the installation of the electric drive device and better reduces the space occupation of the electric drive device.

[0011] In some embodiments, the first motor includes a first housing, the second motor includes a second housing, and at least a portion of the control component is connected to the first housing and / or the second housing.

[0012] In the technical solution of this embodiment, at least a portion of the control component is connected to the first housing and / or the second housing. The first housing and the second housing provide an installation base for at least a portion of the structure in the control component, thereby saving the foundation structure in the control component, reducing the volume of the control component, and reducing the space occupied by the control component.

[0013] In some embodiments, the first motor includes a first housing, on which a first protective plate extends from the first housing toward the location of the second motor, the first protective plate being used to cover at least a portion of the control components.

[0014] In the technical solution of this embodiment, a first protective plate is provided on the first housing, and the first protective plate can cover at least part of the control component, so as to protect the control component through the first protective plate, thereby reducing the risk of damage to the control component by the external environment; at the same time, part of the structure of the control component can also be connected to the first protective plate, so as to further save the basic structure in the control component and reduce the space occupied by the control component.

[0015] In some embodiments, the side of the first guard plate opposite to the first housing is connected to the second motor, and the first housing, the second motor and the first guard plate form a receiving space, in which the control component is received.

[0016] In this embodiment, the first protective plate is connected to the second housing so that the first protective plate can cover more parts of the control component, thereby enabling the first protective plate to better protect the control component. At the same time, the first protective plate, the first housing, and the second housing form an accommodating space. In this case, in addition to accommodating the internal structures of the first motor and the second motor, the first housing and the second housing can also work with the first protective plate to provide protection for the control component, improving the utilization rate of the structure and thus facilitating the reduction of the space occupied by the electric drive device.

[0017] In some embodiments, the first guard plate is formed by bending a portion of the first housing toward the control assembly.

[0018] In this embodiment, the first protective plate is formed by bending the first housing, so that the first protective plate can have high strength. During the operation of the electric drive device, this setting can also reduce the vibration of the first protective plate, thereby improving the stability of the first protective plate, reducing the noise that the first protective plate may generate, and improving the quietness of the electric drive device.

[0019] In some embodiments, the second motor includes a second housing, on which a second protective plate extends from the second housing toward the location of the first motor, the second protective plate being used to cover at least a portion of the control components.

[0020] In the technical solution of this embodiment, a second protective plate is provided on the second housing, and the second protective plate can cover at least part of the control component, so as to protect the control component through the second protective plate, thereby reducing the risk of damage to the control component by the external environment; at the same time, part of the structure of the control component can also be connected to the second protective plate, so as to further save the basic structure in the control component and reduce the space occupied by the control component.

[0021] In some embodiments, the side of the second guard plate opposite to the second housing is connected to the first motor, and the first housing, the second housing, and the second guard plate form a receiving space, in which the control component is received.

[0022] In this embodiment, the second protective plate is connected to the first housing so that the second protective plate can cover more parts of the control component, thereby enabling the second protective plate to better protect the control component. At the same time, the second protective plate, the first housing, and the second housing form an accommodating space. In this case, in addition to accommodating the internal structures of the first motor and the second motor, the first housing and the second housing can also work with the second protective plate to provide protection for the control component, improving the utilization rate of the structure and thus facilitating the reduction of the space occupied by the electric drive device.

[0023] In some embodiments, the second guard plate is formed by bending a portion of the second housing toward the control assembly.

[0024] In this embodiment, the second protective plate is formed by bending the second housing, so that the second protective plate can have high strength. During the operation of the electric drive device, this setting can also reduce the vibration of the second protective plate, thereby improving the stability of the second protective plate, reducing the noise that the second protective plate may generate, and improving the quietness of the electric drive device.

[0025] In some embodiments, the control component includes a heat exchange structure connected to a first motor and / or a second motor.

[0026] In the technical solution of this embodiment, the control component includes a heat exchange structure so as to control the temperature of the electric drive device through the heat exchange structure.

[0027] In some embodiments, the control component includes a filtering module connected to the first motor and / or the second motor.

[0028] In the technical solution of this embodiment, the control component includes a filtering module to filter and process electromagnetic interference generated during the operation of the electric drive device.

[0029] In some embodiments, the control component includes a bus capacitor connected to a first motor and / or a second motor.

[0030] In this embodiment, the control component includes a bus capacitor to control the bus voltage, absorb pulse current, and reduce the negative impact of overcharging, thereby improving the stability of the electric drive device.

[0031] In some embodiments, the control component includes a first electronic control module and a second electronic control module. The first electronic control module is connected to the first motor to control the operating state of the first motor and drive the first motor to run. The second electronic control module is connected to the second motor to control the operating state of the second motor and drive the second motor to run.

[0032] In the technical solution of this embodiment, the control component includes a first electronic control module and a second electronic control module to drive two motors to run and control the running state of the two motors respectively.

[0033] In some embodiments, the control component includes a first power module and a second power module. The first power module is electrically connected to the first motor to convert and control the voltage and / or current of the first motor, and the second power module is electrically connected to the second motor to convert and control the voltage and / or current of the second motor.

[0034] In the technical solution of this embodiment, the control component includes a first power module and a second power module to control and convert the power of the two motors respectively.

[0035] In some embodiments, the control component includes a first AC output module and a second AC output module, wherein the first AC output module is electrically connected to a first motor and the second AC output module is electrically connected to a second motor.

[0036] In the technical solution of this embodiment, the control component includes a first AC output module and a second AC output module, so as to deliver relatively stable AC power to the first motor and the second motor.

[0037] In some embodiments, the control component includes a high-voltage connection module and a low-voltage connection module, both of which are connected to the first motor and the second motor.

[0038] In this embodiment, the control component includes a high-voltage connection module and a low-voltage connection module to facilitate the connection of the electric drive device with external high-voltage and low-voltage devices.

[0039] In some embodiments, the electric drive device further includes a first speed change assembly and a second speed change assembly. The first speed change assembly is connected to the first motor and disposed along a first direction on the side of the first motor opposite to the second motor. The second speed change assembly is connected to the second motor and disposed along the first direction on the side of the second motor opposite to the first motor. The first motor, the second motor, the first speed change assembly, and the second speed change assembly are coaxially arranged.

[0040] The technical solution of this embodiment provides some arrangement methods for two motors and two speed-changing components to make the overall shape of the electric drive device more regular, thereby further reducing the space occupied by the electric drive device.

[0041] Secondly, embodiments of this application also provide an electric drive system, including the electric drive device provided in some embodiments of the first aspect.

[0042] Thirdly, embodiments of this application also provide an electrical device, including an electric drive device provided in some embodiments of the first aspect, or an electric drive system provided in some embodiments of the second aspect.

[0043] The above description is only an overview of the technical solution of this application. In order to better understand the technical means of this application and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this application more obvious and understandable, the following are specific embodiments of this application. Attached Figure Description

[0044] Various other advantages and benefits will become apparent to those skilled in the art upon reading the detailed description of the preferred embodiments below. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0045] Figure 1 This is a schematic diagram of the structure of an electrical device provided in some embodiments of this application;

[0046] Figure 2 This is a front view schematic diagram of an electric drive device provided in some embodiments of this application;

[0047] Figure 3 This is a front view schematic diagram of a driving component provided in some embodiments of this application;

[0048] Figure 4 A perspective view of the driving components provided in some embodiments of this application;

[0049] Figure 5 A side view schematic diagram of a driving component provided in some embodiments of this application;

[0050] Figure 6 Another perspective view of the driving components provided in some embodiments of this application;

[0051] Figure 7 This is another side view of a driving component provided in some embodiments of this application.

[0052] The markings in the diagram mean:

[0053] 1000, vehicles;

[0054] 100. Electric drive unit;

[0055] 10. First motor; 11. First housing; 12. First protective plate;

[0056] 20. Second motor; 21. Second housing; 22. Second protective plate;

[0057] 30. First transmission assembly;

[0058] 40. Second transmission assembly;

[0059] 50. Control components; 51. Heat exchange structure; 52. Filtering module; 53. Bus capacitor; 541. First electrical control module; 542. Second electrical control module; 551. First power module; 552. Second power module; 561. First AC output module; 562. Second AC output module; 57. High-voltage connection module; 58. Low-voltage connection module;

[0060] 200. Battery;

[0061] 300. Controller. Detailed Implementation

[0062] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0063] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0064] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly specifying the number, specific order, or primary and secondary relationship of the indicated technical features. In the description of the embodiments of this application, "multiple" means two or more, unless otherwise explicitly defined.

[0065] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0066] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0067] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple sets" refers to two or more (including two sets), and "multiple pieces" refers to two or more (including two pieces).

[0068] In the description of the embodiments of this application, the technical terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0069] In the description of the embodiments of this application, unless otherwise expressly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0070] In recent years, the new energy vehicle sector has developed rapidly. As one of the core components of new energy vehicles, the electric drive system's driving characteristics determine the main performance indicators of vehicle operation. Simultaneously, with the development of distributed drive control technology, more and more dual-motor electric drive systems are being researched and implemented. A dual-motor electric drive system refers to a system in which two motors work collaboratively. In this system, the two motors can work independently or in combination, adapting to different application scenarios.

[0071] In current dual-motor drive systems, the control components for both motors are typically located on one side of the two motors' orientation, resulting in an irregular shape and a large footprint. Taking a dual-motor drive system applied to the rear wheels as an example, where each motor controls and drives one of the rear wheels, the control components are usually located in front of or behind the two motors along the vehicle's length. This can easily encroach on the passenger compartment or trunk space, and negatively impact the layout of other structures. Furthermore, the irregular shape of a dual-motor drive system often results in numerous small, unusable spaces, leading to low space utilization.

[0072] Based on the above considerations, in order to alleviate the problem that the current dual-motor drive system has an irregular shape and the control component occupies a large space, this application provides an electric drive device in which the first motor, the second motor, the first speed change component and the second speed change component are arranged along the first direction, the control component is placed between the first motor and the second motor, and the size of the control component in the second direction is smaller than the size of the first motor and / or the second motor in the second direction.

[0073] In such a dual-motor drive system, at least part of the control component can be located within the space covered by the first motor or the second motor. At this time, the shape and space occupation of the electric drive device mainly depend on the first motor and the second motor, thereby reducing the space occupation of the control component, reducing the negative impact of the control component on the installation of the electric drive device, and thus reducing the space occupation of the electric drive device.

[0074] The electric drive device mentioned in the embodiments of this application can be applied to an electric drive system as a power source; it can also be applied to an electrical device as a power source. The electric drive system mentioned in the embodiments of this application can also be applied to an electrical device as a power source, or as a controller to control the state of the electrical device.

[0075] Electrical devices can include, but are not limited to, electric toys, power tools, electric bicycles, electric motorcycles, ships, spacecraft, etc. Electric toys can include stationary or mobile electric toys, such as game consoles, electric car toys, electric ship toys, and electric airplane toys, etc. Spacecraft can include airplanes, rockets, space shuttles, and spacecraft, etc.

[0076] Electrical devices can also be vehicles or vehicle chassis. Vehicles can be gasoline-powered vehicles, natural gas-powered vehicles, or new energy vehicles. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc.

[0077] For ease of explanation, the following embodiments will be described using a vehicle 1000 as an example of an electrical device according to an embodiment of this application.

[0078] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a vehicle 1000 provided in some embodiments of this application. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. The new energy vehicle can be a pure electric vehicle, a hybrid electric vehicle, or a range-extended electric vehicle, etc. A battery 200 is disposed inside the vehicle 1000, and the battery 200 can be located at the bottom, front, or rear of the vehicle 1000. The battery 200 can be used to power the vehicle 1000; for example, the battery 200 can serve as the operating power source for the vehicle 1000. The vehicle 1000 may also include a controller 300 and an electric drive unit 100. The controller 300 is used to control the battery 200 to supply power to the electric drive unit 100, for example, to meet the power requirements of the vehicle 1000 during startup, navigation, and driving.

[0079] In some embodiments of this application, the battery 200 can not only serve as the operating power source for the vehicle 1000, but also as the driving power source for the vehicle 1000, replacing or partially replacing fuel or natural gas to provide driving power for the vehicle 1000.

[0080] Firstly, reference Figure 1 , Figure 2This application provides an electric drive device 100, including a first motor 10, a second motor 20, and a control component 50. The first motor 10 and the second motor 20 are arranged along a first direction; the control component 50 is connected to the first motor 10 and the second motor 20 and disposed between them; in a second direction perpendicular to the first direction, the size of the control component 50 is less than or equal to the size of the first motor 10, and / or the size of the control component 50 is less than or equal to the size of the second motor 20.

[0081] Figure 1 In the diagram, the X-axis is located in the width direction of vehicle 1000, and the Y-axis is located in the length direction of vehicle 1000. Figure 2 In the diagram, the X-axis is located in the length direction of the electric drive device 100, and the Z-axis is located in the height direction of the electric drive device 100.

[0082] The first motor 10 and the second motor 20 are structures in the electric drive device 100 that convert electrical energy into mechanical energy and output it. When the electric drive device 100 is used to drive the vehicle 1000, the first motor 10 and the second motor 20 can drive the two wheels of the vehicle 1000 to rotate, so as to realize the independent control of the two wheels. The first motor 10 and the second motor 20 can also drive the two wheels to move synchronously through a differential or other devices.

[0083] Depending on the purpose of the first motor 10 and the second motor 20, the first motor 10 and the second motor 20 can be two motors with identical shape, size, power and other parameters, or they can be two different motors.

[0084] The control component 50 refers to the structure in the electric drive device 100 used to manage and control the operating state of the electric drive device 100. The control component 50 may include control units such as microcontroller 300 and programmable logic controller 300, or it may include power modules, thermal management modules, communication interfaces or other structures. The control component 50 is connected to the first motor 10 and the second motor 20 to control the operating state of the first motor 10 and the second motor 20. The control component 50 can control the first motor 10 and the second motor 20 simultaneously so that they can act synchronously. The control component 50 can also control the first motor 10 and the second motor 20 separately so that they can act independently.

[0085] The first direction can be the length direction of the vehicle 1000, the width direction of the vehicle 1000, or other directions; for example, the first direction is the width direction X of the vehicle 1000, and the first motor 10 and the second motor 20 drive the two wheels of the vehicle 1000 to rotate through the first transmission assembly 30 and the second transmission assembly 40, respectively.

[0086] The size of the control component 50 in the second direction is less than or equal to the size of the first motor 10. Since the control component 50 is located between the first motor 10 and the second motor 20, this arrangement allows at least a portion of the control component 50 to be located within the space covered by the first motor 10, so that the maximum size of the electric drive device 100 in the second direction is not related to the control component 50. This reduces the impact of the control component 50 on the volume of the electric drive device 100 and also reduces the space occupied by the control component 50.

[0087] The size of the control component 50 in the second direction is less than or equal to the size of the second motor 20. Since the control component 50 is located between the first motor 10 and the second motor 20, this arrangement allows at least a portion of the control component 50 to be located within the space covered by the second motor 20, so that the maximum size of the electric drive device 100 in the second direction is not related to the control component 50. This reduces the impact of the control component 50 on the volume of the electric drive device 100 and also reduces the space occupied by the control component 50.

[0088] The size of the control component 50 in the second direction can be less than or equal to the size of the first motor 10 or the second motor 20 in the second direction, or both can be less than or equal to the size of the first motor 10 or the second motor 20 in the second direction, so as to better reduce the impact of the control component 50 on the volume of the electric drive device 100 and reduce the space occupied by the control component 50.

[0089] If the size of the control component 50 in the second direction is less than or equal to the size of the first motor 10 and / or the second motor 20 in the second direction, the size of the control component 50 in other directions may also be less than or equal to the size of the first motor 10 and / or the second motor 20 in the corresponding direction.

[0090] The second direction is perpendicular to the first direction. The second direction can be the length direction of vehicle 1000, the height direction of vehicle 1000, or other directions. For example, the first direction is the width direction X of vehicle 1000, and the second direction is the length direction Y of vehicle 1000.

[0091] In this embodiment, the size of the control component 50 in the second direction is made smaller than or equal to the size of the first motor 10 and / or the second motor 20 in the second direction, so that at least a portion of the control component 50 can be located within the space covered by the first motor 10 or the second motor 20. At this time, the shape and space occupation of the electric drive device 100 mainly depend on the first motor 10 and the second motor 20, thereby reducing the space occupation of the control component 50, reducing the negative impact of the control component 50 on the installation of the electric drive device 100, and thus reducing the space occupation of the electric drive device 100.

[0092] refer to Figure 1 , Figure 2 In some embodiments, in a third direction perpendicular to the first direction, the size of the control component 50 is less than or equal to the size of the first motor 10 and / or the second motor 20; the second direction is set at an angle to the third direction.

[0093] The size of the control component 50 in the third direction is less than or equal to the size of the first motor 10. Since the control component 50 is located between the first motor 10 and the second motor 20, this arrangement allows at least a portion of the control component 50 to be located within the space covered by the first motor 10, so that the maximum size of the electric drive device 100 in the third direction is not related to the control component 50. This reduces the impact of the control component 50 on the volume of the electric drive device 100 and also reduces the space occupied by the control component 50.

[0094] The size of the control component 50 in the third direction is less than or equal to the size of the second motor 20. Since the control component 50 is located between the first motor 10 and the second motor 20, this arrangement allows at least a portion of the control component 50 to be located within the space covered by the second motor 20, so that the maximum size of the electric drive device 100 in the third direction is not related to the control component 50. This reduces the impact of the control component 50 on the volume of the electric drive device 100 and also reduces the space occupied by the control component 50.

[0095] The size of the control component 50 in the third direction can be less than or equal to the size of the first motor 10 or the second motor 20 in the third direction, or both can be less than or equal to the size of the first motor 10 or the second motor 20 in the third direction, so as to better reduce the impact of the control component 50 on the volume of the electric drive device 100 and reduce the space occupied by the control component 50.

[0096] If the size of the control component 50 in a third direction is less than or equal to the size of the first motor 10 and / or the second motor 20 in the third direction, the size of the control component 50 in other directions may also be less than or equal to the size of the first motor 10 and / or the second motor 20 in the corresponding directions.

[0097] The third direction is perpendicular to the first direction, and the third direction is set at an angle to the second direction, that is, the third direction and the second direction are different directions. The third direction can be the length direction of vehicle 1000, the height direction of vehicle 1000, or other directions. For example, the first direction is the width direction X of vehicle 1000, the second direction is the length direction Y of vehicle 1000, and the third direction is the height direction Z of vehicle 1000.

[0098] In this embodiment, the size of the control component 50 in the third direction is also smaller than or equal to the size of the first motor 10 and / or the second motor 20 in the third direction, so as to further reduce the space occupation of the control component 50, reduce the negative impact of the control component 50 on the installation of the electric drive device, and reduce the space occupation of the electric drive device 100.

[0099] refer to Figure 1 , Figure 2 In some embodiments, on a projection plane perpendicular to the first direction, the projection of the control component 50 falls within the projection of the first motor 10, and / or the projection of the control component 50 falls within the projection of the second motor 20.

[0100] The projection surface perpendicular to the first direction is a virtual surface. The projection of the control component 50 onto this projection surface falls within the projection of the first motor 10. That is, in the first direction, the first motor 10 can completely block and cover the control component 50. The dimensions of the control component 50 in each direction perpendicular to the first direction are smaller than or equal to the dimensions of the first motor 10 in the corresponding direction. This arrangement makes it difficult for the control component 50 to extend into the coverage area of ​​the first motor 10, so that the maximum dimensions of the electric drive device 100 in each direction perpendicular to the first square are not related to the control component 50. This reduces the impact of the control component 50 on the volume of the electric drive device 100 and also reduces the space occupied by the control component 50.

[0101] On the projection plane perpendicular to the first direction, the projection of the control component 50 falls within the projection of the second motor 20. That is, in the first direction, the second motor 20 can completely block and cover the control component 50. The dimensions of the control component 50 in each direction perpendicular to the first direction are smaller than or equal to the dimensions of the second motor 20 in the corresponding direction. This arrangement makes it difficult for the control component 50 to extend into the coverage area of ​​the second motor 20, so that the maximum dimensions of the electric drive device 100 in each direction perpendicular to the first square are not related to the control component 50. This reduces the impact of the control component 50 on the volume of the electric drive device 100 and also reduces the space occupied by the control component 50.

[0102] The projection of the control component 50 onto a projection plane perpendicular to the first direction can fall within the projections of the first motor 10 and / or the second motor 20, meaning the projected area of ​​the control component 50 is less than or equal to the projected areas of the first motor 10 and / or the second motor 20. Alternatively, the projected area of ​​the control component 50 can be less than or equal to the projected areas of either the first motor 10 or the second motor 20, or it can be simultaneously less than or equal to the projected areas of both the first motor 10 and the second motor 20. For example, when the projected area of ​​the control component 50 is simultaneously less than or equal to the projected areas of both the first motor 10 and the second motor 20, the impact of the control component 50 on the shape of the electric drive device 100 can be further reduced.

[0103] In this embodiment, the control component 50 is located entirely within the space covered by the first motor 10 and the second motor 20. At this time, the shape and space occupation of the drive device depend on the first motor 10 and the second motor 20, which better reduces the negative impact of the control component 50 on the installation of the electric drive device 100 and better reduces the space occupation of the electric drive device 100.

[0104] refer to Figure 2 In some embodiments, the first motor 10 includes a first housing 11, the second motor 20 includes a second housing 21, and at least a portion of the control component 50 is connected to the first housing 11 and / or the second housing 21.

[0105] The first housing 11 refers to the structure in the first motor 10 used to provide an installation base for other structures. The first housing 11 can also form the internal environment of the first motor 10 and separate the internal environment from the external environment of the first motor 10. The shape of the first housing 11 can be cylindrical, prismatic, or other shapes. The material of the first housing 11 can include metal, plastic, or other materials.

[0106] The second housing 21 refers to the structure in the second motor 20 used to provide an installation base for other structures. The second housing 21 can also form the internal environment of the second motor 20 and separate the internal environment from the external environment of the second motor 20. The shape of the second housing 21 can be cylindrical, prismatic, or other shapes. The material of the second housing 21 can include metal, plastic, or other materials.

[0107] At least a portion of the control component 50 is connected to the first housing 11 and / or the second housing 21. That is, all structures in the control component 50 can be connected to the first housing 11 and / or the second housing 21, or only a portion of the structures in the control component 50 can be connected to the first housing 11 and / or the second housing 21. Since the control component 50 is located between the first motor 10 and the second motor 20, the control component 50 can be connected to the first housing 11 or the second housing 21, or the control component 50 can be connected to both the first housing 11 and the second housing 21 simultaneously.

[0108] Depending on the different structures in the control assembly 50, each structure in the control assembly 50 can be connected to the corresponding first housing 11 and / or second housing 21 by welding, bonding, screwing, snapping or other means; each structure in the control assembly 50 can be directly connected to the corresponding first housing 11 and / or second housing 21, or can be indirectly connected to the first housing 11 and / or second housing 21 through an intermediate structure.

[0109] In this embodiment, at least a portion of the control component 50 is connected to the first housing 11 and / or the second housing 21, so that the first housing 11 and the second housing 21 can serve as part of the structure of the first motor 10 and the second motor 20, and can also provide a mounting base for at least a portion of the structure in the control component 50. This allows the first motor 10, the second motor 20, and the control component 50 to share the first housing 11 and the second housing 21, improving the utilization rate of the first housing 11 and the second housing 21, saving on the basic structure in the control component 50, reducing the volume of the control component 50, and reducing the space occupied by the control component 50.

[0110] refer to Figures 2 to 4 In some embodiments, the first motor 10 includes a first housing 11, on which a first protective plate 12 is provided extending from the first housing 11 toward the location of the second motor 20, the first protective plate 12 being used to cover at least a portion of the control assembly 50.

[0111] The first guard plate 12 refers to the structure in the first motor 10 connected to the first housing 11. The first guard plate 12 surrounds and protects at least a part of the structure of the control component 50. The first guard plate 12 can be a ring-shaped structure that surrounds the control component 50 around the first direction, or it can be an arc-shaped structure that only surrounds a part of the control component 50. The material of the first guard plate 12 can include metal, plastic or other materials.

[0112] The first protective plate 12 is connected to the first housing 11. The first protective plate 12 can be connected to the first housing 11 by welding, bonding, screwing or other means. The first protective plate 12 can also be integrally formed with the first housing 11.

[0113] In the first direction, the first guard plate 12 may completely cover the control component 50 or only cover a part of the control component 50; when the first guard plate 12 completely covers the control component 50 in the first direction, the first guard plate 12 may be connected to the second housing 21 or may be spaced apart from the second housing 21.

[0114] In this embodiment, a first protective plate 12 is provided on the first housing 11, and the first protective plate 12 can cover at least a part of the control component 50, so as to protect the control component 50 through the first protective plate 12, thereby reducing the risk of damage to the control component 50 by the external environment; at the same time, part of the structure of the control component 50 can also be connected to the first protective plate 12, so as to further save the basic structure in the control component 50 and reduce the space occupied by the control component 50.

[0115] refer to Figure 2 In some embodiments, the side of the first protective plate 12 facing away from the first housing 11 is connected to the second motor 20, and the first housing 11, the second motor 20 and the first protective plate 12 form a receiving space, in which the control component 50 is received.

[0116] The first protective plate 12 is connected to the second motor 20 on the side opposite to the first housing 11. The first protective plate 12 may simply abut against the second motor 20, or it may be connected to the second motor 20 by welding, bonding, screwing or other means. The first protective plate 12 may be connected to the second housing 21, or it may be connected to other structures of the second motor 20.

[0117] Since the first protective plate 12 is also connected to the first housing 11, the two ends of the first protective plate 12 are respectively connected to the first housing 11 and the second motor 20. The first protective plate 12 can completely cover the control component 50 in the first direction, so as to better protect the control component 50.

[0118] The first housing 11, the second motor 20, and the first protective plate 12 form an accommodating space, which is located between the first motor 10 and the second motor 20. Depending on the structure of the first protective plate 12, the accommodating space can be a closed space structure or a partially open space structure. Depending on the shape of the first protective plate 12, the accommodating space can be a cylindrical space structure, a prism-shaped space structure, or a space structure of other shapes.

[0119] For example, the first protective plate 12 completely surrounds the periphery of the control component 50 in a first direction, and together with the first housing 11 and the second housing 21, forms a closed receiving space; at this time, the control component 50 is received in the receiving space, so as to isolate the control component 50 from the external environment through the first housing 11, the second motor 20 and the first protective plate 12, thereby better protecting the control component 50.

[0120] In this embodiment, the first protective plate 12 is connected to the second motor 20 so that the first protective plate 12 can cover more parts of the control component 50, thereby enabling the first protective plate 12 to better protect the control component 50. At the same time, the first protective plate 12, the first housing 11, and the second motor 20 form an accommodating space. In this case, the first housing 11 and the second housing 21, in addition to accommodating the internal structure of the first motor 10 and the second motor 20, can also cooperate with the first protective plate 12 to provide protection for the control component 50, thereby improving the utilization rate of the structure and making it easier to reduce the space occupation of the electric drive device 100.

[0121] In some embodiments, the first guard plate 12 is formed by bending a portion of the first housing 11 toward the control assembly 50.

[0122] The first protective plate 12 is a part of the structure of the first housing 11 bent towards the control component 50. That is, the first protective plate 12 is a part of the structure of the first housing 11. The first protective plate 12 and the first housing 11 are integrally formed. At this time, the connection between the first protective plate 12 and the first housing 11 has high strength and good mechanical properties. During the operation of the electric drive device 100, this setting can reduce the vibration of the first protective plate 12, thereby reducing the noise that may be generated by the vibration of the first protective plate 12 and improving the quietness of the electric drive device 100.

[0123] Compared to traditional solutions for reducing vibration noise of the first guard plate 12, this design eliminates the need to increase the thickness of the first guard plate 12 to improve its strength, and also eliminates the need to install sound insulation and noise reduction structures (such as sound-absorbing cotton) outside the first guard plate 12. In addition to improving the quietness of the electric drive device 100, this design also simplifies the structure of the electric drive device 100 and reduces its space occupation.

[0124] In this embodiment, the first protective plate 12 is formed by bending the first housing 11, so that the first protective plate 12 can have high strength; during the operation of the electric drive device 100, this setting can also reduce the vibration of the first protective plate 12, thereby improving the stability of the first protective plate 12, reducing the noise that the first protective plate 12 may generate, and improving the quietness of the electric drive device 100.

[0125] refer to Figure 2 In some embodiments, the second motor 20 includes a second housing 21, on which a second protective plate 22 is provided extending from the second housing 21 toward the location of the first motor 10, the second protective plate 22 being used to cover at least a portion of the control assembly 50.

[0126] The second guard plate 22 refers to the structure in the first motor 10 connected to the second housing 21. The second guard plate 22 surrounds and protects at least a part of the structure of the control component 50. The second guard plate 22 can be a ring-shaped structure that surrounds the control component 50 around the first direction, or it can be an arc-shaped structure that only surrounds a part of the control component 50. The material of the second guard plate 22 can include metal, plastic or other materials.

[0127] The second protective plate 22 is connected to the second housing 21. The second protective plate 22 can be connected to the second housing 21 by welding, bonding, screwing or other means. The second protective plate 22 can also be integrally formed with the second housing 21.

[0128] In the first direction, the second guard plate 22 may completely cover the control component 50 or only cover a part of the control component 50; when the second guard plate 22 completely covers the control component 50 in the first direction, the second guard plate 22 may be connected to the first housing 11 or may be spaced apart from the first housing 11.

[0129] In this embodiment, a second protective plate 22 is provided on the second housing 21, and the second protective plate 22 can cover at least a part of the control component 50, so as to protect the control component 50 through the second protective plate 22, thereby reducing the risk of damage to the control component 50 by the external environment; at the same time, part of the structure of the control component 50 can also be connected to the second protective plate 22, so as to further save the basic structure in the control component 50 and reduce the space occupied by the control component 50.

[0130] refer to Figure 2 In some embodiments, the side of the second protective plate 22 facing away from the second housing 21 is connected to the first motor 10, and the first housing 11, the second housing 21 and the second protective plate 22 form a receiving space, in which the control component 50 is received.

[0131] The second guard plate 22 is connected to the first motor 10 on the side opposite to the second housing 21. The second guard plate 22 may simply abut against the first motor 10, or it may be connected to the first motor 10 by welding, bonding, screwing or other means. The second guard plate 22 may be connected to the first housing 11, or it may be connected to other structures of the first motor 10.

[0132] Since the second protective plate 22 is also connected to the second housing 21, the two ends of the second protective plate 22 are respectively connected to the second housing 21 and the first motor 10. The second protective plate 22 can completely cover the control component 50 in the first direction, so as to better protect the control component 50.

[0133] The first housing 11, the second housing 21, and the second protective plate 22 form a receiving space, which is located between the first motor 10 and the second motor 20. According to the structure of the second protective plate 22, the receiving space can be a closed space structure or a partially open space structure. According to the shape of the second protective plate 22, the receiving space can be a cylindrical space structure, a prism-shaped space structure, or a space structure of other shapes.

[0134] For example, the second protective plate 22 completely surrounds the periphery of the control component 50 in the first direction, and together with the second housing 21, forms a closed receiving space; at this time, the control component 50 is received in the receiving space, so as to isolate the control component 50 from the external environment through the second housing 21, the second housing 21, and the second protective plate 22, thereby better protecting the control component 50.

[0135] For example, when the first motor 10 includes a first guard plate 12, the second guard plate 22 can be connected to the first guard plate 12. In this case, the first guard plate 12, the second guard plate 22, the first housing 11 and the second housing 21 together form an accommodating space to accommodate the control component 50 and to protect the control component 50.

[0136] In this embodiment, the second protective plate 22 is connected to the first housing 11 so that the second protective plate 22 can cover more parts of the control component 50, thereby enabling the second protective plate 22 to better protect the control component 50. At the same time, the second protective plate 22, the first housing 11 and the second housing 21 form an accommodating space. In this case, in addition to accommodating the internal structure of the first motor 10 and the second motor 20, the first housing 11 and the second housing 21 can also cooperate with the second protective plate 22 to provide protection for the control component 50, thereby improving the utilization rate of the structure and making it easier to reduce the space occupation of the electric drive device 100.

[0137] In some embodiments, the second guard plate 22 is formed by bending a portion of the second housing 21 toward the control assembly 50.

[0138] The second protective plate 22 is formed by bending a portion of the structure of the second housing 21 toward the control component 50. That is, the second protective plate 22 is a part of the structure of the second housing 21. The second protective plate 22 and the second housing 21 are integrally formed. At this time, the connection between the second protective plate 22 and the second housing 21 has high strength and good mechanical properties. During the operation of the electric drive device 100, this setting can reduce the vibration of the second protective plate 22, thereby reducing the noise that may be generated by the vibration of the second protective plate 22 and improving the quietness of the electric drive device 100.

[0139] Compared to traditional solutions for reducing vibration noise of the second guard plate 22, this design eliminates the need to increase the thickness of the second guard plate 22 to improve its strength, and also eliminates the need to install sound insulation and noise reduction structures (such as sound-absorbing cotton) outside the second guard plate 22. In addition to improving the quietness of the electric drive device 100, this design also simplifies the structure of the electric drive device 100 and reduces its space occupation.

[0140] In this embodiment, the second protective plate 22 is formed by bending the second housing 21, so that the second protective plate 22 can have high strength; during the operation of the electric drive device 100, this setting can also reduce the vibration of the second protective plate 22, thereby improving the stability of the second protective plate 22, reducing the noise that the second protective plate 22 may generate, and improving the quietness of the electric drive device 100.

[0141] refer to Figures 4 to 7 In some embodiments, the control component 50 includes a heat exchange structure 51 connected to a first motor 10 and / or a second motor 20.

[0142] The heat exchange structure 51 refers to the structure in the control assembly 50 used to control the operating temperature of the electric drive device 100. The heat exchange structure 51 can exchange heat with the electric drive device 100 so that the electric drive device 100 can operate at a more suitable temperature. The heat exchange structure 51 may include a cooling structure to absorb the temperature of the electric drive device 100 and reduce the operating temperature of the electric drive device 100. The heat exchange structure 51 may also include a heating structure to raise the temperature of the electric drive device 100.

[0143] The heat exchange structure 51 can exchange heat with the first motor 10 and / or the second motor 20. That is, the heat exchange structure 51 can be connected only to the first motor 10 or the second motor 20 to exchange heat with the corresponding first motor 10 or the second motor 20. The heat exchange structure 51 can also be connected to both the first motor 10 and the second motor 20 to exchange heat with the first motor 10 and the second motor 20. The heat exchange structure 51 can be connected to the corresponding first motor 10 and / or the second motor 20 by welding, bonding, screwing or other means. The heat exchange structure 51 can be directly connected to the corresponding first motor 10 and / or the second motor 20. Other intermediate structures, such as thermally conductive adhesive layers, can also be provided between the heat exchange structure 51 and the corresponding first motor 10 and / or the second motor 20.

[0144] For example, the heat exchange structure 51 may include a cold plate to reduce the operating temperature of the first motor 10 and the second motor 20.

[0145] In this embodiment, the control component 50 includes a heat exchange structure 51 so as to control the temperature of the electric drive device 100 through the heat exchange structure 51.

[0146] refer to Figures 4 to 7 In some embodiments, the control component 50 includes a filter module 52 connected to the first motor 10 and / or the second motor 20.

[0147] The filter module 52 refers to the structure in the control component 50 used to filter and process the electromagnetic interference and power supply noise generated during the operation of the first motor 10 and the second motor 20, so that the first motor 10 and the second motor 20 can operate stably and reliably.

[0148] The filter module 52 may include capacitors, inductors, magnetic rings or other components.

[0149] The filter module 52 can be connected to either the first motor 10 or the second motor 20, or it can be connected to both the first motor 10 and the second motor 20.

[0150] In this embodiment, the control component 50 includes a filter module 52 to filter and process electromagnetic interference generated during the operation of the electric drive device 100.

[0151] refer to Figures 4 to 7 In some embodiments, the control component 50 includes a bus capacitor 53 connected to the first motor 10 and / or the second motor 20.

[0152] Bus capacitor 53 refers to the structure in control component 50 used to smooth bus voltage. Bus capacitor 53 can also reduce the inductance parameter of the line, weaken the peak voltage of the bus, absorb high pulse current on the bus, and prevent overcharging. Bus capacitor 53 can be an electrolytic capacitor, film capacitor, or other capacitor.

[0153] The bus capacitor 53 can be connected to either the first motor 10 or the second motor 20, or it can be connected to both the first motor 10 and the second motor 20 at the same time.

[0154] In this embodiment, the control component 50 includes a bus capacitor 53 to control the bus voltage, absorb pulse current, and reduce the negative impact of overcharging, thereby improving the stability of the electric drive device 100.

[0155] refer to Figures 4 to 7 In some embodiments, the control component 50 includes a first electronic control module 541 and a second electronic control module 542. The first electronic control module 541 is connected to the first motor 10 to control the operating state of the first motor 10 and drive the first motor 10 to run. The second electronic control module 542 is connected to the second motor 20 to control the operating state of the second motor 20 and drive the second motor 20 to run.

[0156] The first electronic control module 541 refers to the structure in the control component 50 used to manage, control and drive the electric drive device 100. The first electronic control module 541 may include structures such as control circuit boards and drive circuit boards.

[0157] The control circuit board can receive instruction information from other devices and generate corresponding control signals based on the instruction information to manage and control the operating state of the electric drive device 100; the drive circuit board can receive control signals and convert the control signals into drive signals to drive the electric drive device 100 to operate.

[0158] The first electronic control module 541 is connected to the first motor 10 to manage, control and drive the first motor 10 to operate.

[0159] Similar to the first electronic control module 541, the second electronic control module 542 refers to the structure in the control component 50 used to manage, control and drive the electric drive device 100. The second electronic control module 542 may include structures such as control circuit boards and drive circuit boards. The second electronic control module 542 is connected to the second motor 20 to manage, control and drive the second motor 20.

[0160] In this embodiment, the control component 50 includes a first electronic control module 541 and a second electronic control module 542 to drive two motors and control the operating status of the two motors respectively.

[0161] refer to Figures 4 to 7 In some embodiments, the control component 50 includes a first power module 551 and a second power module 552. The first power module 551 is electrically connected to the first motor 10 to convert and control the voltage and / or current of the first motor 10, and the second power module 552 is electrically connected to the second motor 20 to convert and control the voltage and / or current of the second motor 20.

[0162] The first power module 551 refers to the device in the control component 50 used to convert the input electrical energy into the desired output form. It can be used to convert low voltage or low current signals into high voltage or high current signals to achieve power amplification or conversion. The first power module 551 may include power electronic devices, drive circuits, control circuits, and protection circuits, etc. The power electronic devices may include insulated gate bipolar transistors, metal-oxide-semiconductor field-effect transistors, etc.

[0163] The first power module 551 is connected to the first motor 10 to amplify or convert the electrical energy input to the first motor 10.

[0164] Similar to the first power module 551, the second power module 552 refers to the device in the control component 50 used to convert the input electrical energy into the desired output form. It can be used to convert low voltage or low current signals into high voltage or high current signals to achieve power amplification or conversion. The second power module 552 may include power electronic devices, drive circuits, control circuits, and protection circuits, etc. The power electronic devices may include insulated-gate bipolar transistors, metal-oxide-semiconductor field-effect transistors, etc.

[0165] The second power module 552 is connected to the second motor 20 to amplify or convert the electrical energy input to the second motor 20.

[0166] In this embodiment, the control component 50 includes a first power module 551 and a second power module 552 to control and convert the power of the two motors respectively.

[0167] refer to Figures 4 to 7 In some embodiments, the control component 50 includes a first AC output module 561 and a second AC output module 562, the first AC output module 561 being electrically connected to the first motor 10 and the second AC output module 562 being electrically connected to the second motor 20.

[0168] The first AC output module 561 refers to the structure in the control component 50 used to output electrical energy to the motor in AC form. The first AC output module 561 may include an inverter, output terminals (e.g., copper busbars), control circuits, drive circuits, etc.

[0169] The first AC output module 561 is connected to the first motor 10 to supply AC power to the first motor 10.

[0170] Similar to the first AC output module 561, the second AC output module 562 refers to the structure in the control component 50 used to output electrical energy to the motor in AC form. The second AC output module 562 may include an inverter, output terminals (e.g., copper busbars), control circuits, drive circuits, etc.

[0171] The second AC output module 562 is connected to the second motor 20 to supply AC power to the second motor 20.

[0172] In this embodiment, the control component 50 includes a first AC output module 561 and a second AC output module 562 to facilitate the delivery of relatively stable AC power to the first motor 10 and the second motor 20.

[0173] refer to Figures 4 to 7 In some embodiments, the control component 50 includes a high-voltage connection module 57 and a low-voltage connection module 58, both of which are connected to the first motor 10 and the second motor 20.

[0174] The high-voltage connection module 57 refers to the structure in the control component 50 used to connect with external high-voltage devices. The high-voltage devices may include the power battery 200, high-voltage distribution box, etc., to facilitate the transmission of high-voltage electrical energy to the electric drive device 100. The high-voltage connection module 57 may include high-voltage connectors, busbars, wiring harnesses, etc.

[0175] The low-voltage connection module 58 refers to the structure in the control component 50 used to connect to external low-voltage devices. The low-voltage devices may include sensors, low-voltage control boxes, etc., to facilitate the transmission of low-voltage signals to the electric drive device 100. The low-voltage connection module 58 may include low-voltage connectors, interface circuits, wiring harnesses, etc.

[0176] In this embodiment, the control component 50 includes a high-voltage connection module 57 and a low-voltage connection module 58, so that the electric drive device 100 can be connected to external high-voltage and low-voltage devices.

[0177] refer to Figure 2 In some embodiments, the electric drive device 100 further includes a first speed change component 30 and a second speed change component 40. The first speed change component 30 is connected to the first motor 10 and is disposed along a first direction on the side of the first motor 10 opposite to the second motor 20. The second speed change component 40 is connected to the second motor 20 and is disposed along a first direction on the side of the second motor 20 opposite to the first motor 10. The first motor 10, the second motor 20, the first speed change component 30 and the second speed change component 40 are coaxially arranged.

[0178] The first speed change assembly 30 and the second speed change assembly 40 are respectively connected to the first motor 10 and the second motor 20. The first speed change assembly 30 is used in the electric drive device 100 to change the speed and torque of the output shaft while keeping the output power of the first motor 10 constant. The second speed change assembly 40 is used in the electric drive device 100 to change the speed and torque of the output shaft while keeping the output power of the second motor 20 constant. The first speed change assembly 30 and the second speed change assembly 40 can be a reducer, a gearbox, or other speed change structure.

[0179] Depending on the purpose of the first gear shift assembly 30 and the second gear shift assembly 40, and according to the specifications of the first motor 10 and the second motor 20, the first gear shift assembly 30 and the second gear shift assembly 40 can be two gear shift assemblies with identical shape, volume, power and other parameters, or they can be two different gear shift assemblies.

[0180] The first motor 10 and the second motor 20 are arranged along the first direction. The first speed change component 30 is located on the side of the first motor 10 away from the second motor 20, and the second speed change component 40 is located on the side of the second motor 20 away from the first motor 10. The control component 50 is located between the first motor 10 and the second motor 20. That is, the first speed change component 30, the first motor 10, the control component 50, the second speed change component 40 and the second motor 20 are arranged in sequence along the first direction.

[0181] The first motor 10, the second motor 20, the first speed change assembly 30, and the second speed change assembly 40 are arranged coaxially, that is, the axes of the output shaft of the first motor 10, the output shaft of the second motor 20, the input shaft of the first speed change assembly 30, and the output shaft of the second speed change assembly 40 coincide.

[0182] Since the first motor 10, the second motor 20, the first speed change assembly 30, and the second speed change assembly 40 are arranged along the first direction, the axes of the output shafts of the first motor 10, the second motor 20, the input shaft of the first speed change assembly 30, and the output shaft of the second speed change assembly 40 are parallel to the first direction. This arrangement enables the electric drive device 100 to have more uniform dimensions in other directions perpendicular to the first direction, and enables the electric drive device 100 to have a more regular overall shape, which facilitates the installation and arrangement of the electric drive device 100, reduces the irregular space around the electric drive device 100, thereby reducing the space occupied by the electric drive device 100, and facilitating the arrangement and installation of other structures around the electric drive device 100.

[0183] This embodiment provides some arrangement of two motors and two speed-changing components to make the overall shape of the electric drive device 100 more regular, thereby further reducing the space occupied by the electric drive device 100.

[0184] In some embodiments, the electric drive device 100 includes a first speed change assembly 30, a first motor 10, a control assembly 50, a second motor 20, and a second speed change assembly 40 arranged sequentially along a first direction; wherein the first motor 10 and the second motor 20 have the same specifications, the first speed change assembly 30 and the second speed change assembly 40 have the same specifications, and the first direction is the length direction X of the electric drive device 100.

[0185] The projection of the control component 50 on the projection plane perpendicular to the first direction falls within the projection of the first motor 10, and the projection of the control component 50 on the projection plane perpendicular to the first direction falls within the projection of the second motor 20.

[0186] The first motor 10 includes a first housing 11, a portion of which bends toward the direction of the control component 50 and forms a first protective plate 12 surrounding the control component 50 in a first direction; the second motor 20 includes a second housing 21, a portion of which bends toward the direction of the control component 50 and forms a second protective plate 22 surrounding the control component 50 in a second direction, the second protective plate 22 being connected to the first protective plate 12, the first protective plate 12, the second protective plate 22, the first housing 11, and the second housing 21 forming a closed receiving space, in which the control component 50 is received.

[0187] The electric drive unit 100 is installed at the rear of the vehicle 1000. The length direction of the electric drive unit 100 corresponds to the width direction X of the vehicle 1000. At this time, the dimensions of the electric drive unit 100 in the length direction Y and height direction Z of the vehicle 1000 are both small.

[0188] For example, in this configuration, the size of the electric drive unit 100 in the length direction Y of the vehicle 1000 can be reduced by 100 mm, thereby increasing the size of the passenger compartment in the length direction Y of the vehicle 1000 by 100 mm.

[0189] Secondly, embodiments of this application provide an electric drive system, including the electric drive device 100 provided in some embodiments of the first aspect. This electric drive system can serve as a power source and provide driving force, and can also provide power to other electronic devices (such as air conditioners, displays, controllers 300, etc.).

[0190] In this electric drive system, the electric drive device 100 occupies less space and has a more regular shape, which allows the various structures in the electric drive system to be arranged more compactly, reducing the space occupied by the electric drive system and improving the space utilization rate of the electric drive system.

[0191] Thirdly, embodiments of this application provide an electrical device, including an electric drive device provided in some embodiments of the first aspect, or an electric drive system provided in some embodiments of the second aspect.

[0192] The electrical device can be the vehicle 1000 or the chassis of the vehicle 1000. The vehicle 1000 can be a gasoline-powered vehicle, a natural gas-powered vehicle, or a new energy vehicle. New energy vehicles can be pure electric vehicles, hybrid electric vehicles, or range-extended electric vehicles, etc.

[0193] In the case of vehicle 1000, where the electrical device is small, the space occupied by electric drive unit 100 is small, thereby increasing the space of the passenger compartment and the trunk.

[0194] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and not to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application, and they should all be covered within the scope of the claims and specification of this application. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This application is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electric drive device, characterized in that, include: The first motor and the second motor are arranged along the first direction; A control component is connected to the first motor and the second motor, and is disposed between the first motor and the second motor; In a second direction perpendicular to the first direction, the size of the control component is less than or equal to the size of the first motor, and / or the size of the control component is less than or equal to the size of the second motor.

2. The electric drive device according to claim 1, characterized in that, In a third direction perpendicular to the first direction, the size of the control component is less than or equal to the size of the first motor and / or the second motor; The second direction is set at an angle to the third direction.

3. The electric drive device according to claim 1 or 2, characterized in that, On a projection plane perpendicular to the first direction, the projection of the control component falls within the projection of the first motor, and / or the projection of the control component falls within the projection of the second motor.

4. The electric drive device according to claim 1 or 2, characterized in that, The first motor includes a first housing, the second motor includes a second housing, and at least a portion of the control component is connected to the first housing and / or the second housing.

5. The electric drive device according to claim 1 or 2, characterized in that, The first motor includes a first housing, and the first housing has a first protective plate extending from the first housing in the direction of the second motor, the first protective plate being used to cover at least a portion of the control component.

6. The electric drive device according to claim 5, characterized in that, The first protective plate is connected to the second motor on the side opposite to the first housing. The first housing, the second motor, and the first protective plate form a receiving space, and the control component is received in the receiving space.

7. The electric drive device according to claim 5, characterized in that, The first protective plate is formed by bending a portion of the first housing toward the control component.

8. The electric drive device according to claim 5, characterized in that, The second motor includes a second housing, on which a second protective plate extends from the second housing toward the location of the first motor, the second protective plate being used to cover at least a portion of the control assembly.

9. The electric drive device according to claim 8, characterized in that, The second guard plate is connected to the first motor on the side opposite to the second housing. The first housing, the second housing, and the second guard plate form a receiving space, and the control component is received in the receiving space.

10. The electric drive device according to claim 8, characterized in that, The second protective plate is formed by bending a portion of the second housing toward the control assembly.

11. The electric drive device according to claim 1 or 2, characterized in that, The control component includes a heat exchange structure, which is connected to the first motor and / or the second motor.

12. The electric drive device according to claim 1 or 2, characterized in that, The control component includes a filtering module, which is connected to the first motor and / or the second motor.

13. The electric drive device according to claim 1 or 2, characterized in that, The control component includes a bus capacitor connected to the first motor and / or the second motor.

14. The electric drive device according to claim 1 or 2, characterized in that, The control component includes a first electronic control module and a second electronic control module. The first electronic control module is connected to the first motor to control the operating state of the first motor and drive the first motor to run. The second electronic control module is connected to the second motor to control the operating state of the second motor and drive the second motor to run.

15. The electric drive device according to claim 1 or 2, characterized in that, The control component includes a first power module and a second power module. The first power module is electrically connected to the first motor to convert and control the voltage and / or current of the first motor, and the second power module is electrically connected to the second motor to convert and control the voltage and / or current of the second motor.

16. The electric drive device according to claim 1 or 2, characterized in that, The control component includes a first AC output module and a second AC output module, wherein the first AC output module is electrically connected to the first motor and the second AC output module is electrically connected to the second motor.

17. The electric drive device according to claim 1 or 2, characterized in that, The control component includes a high-voltage connection module and a low-voltage connection module, both of which are connected to the first motor and the second motor.

18. The electric drive device according to claim 1 or 2, characterized in that, The electric drive device further includes a first speed change assembly and a second speed change assembly. The first speed change assembly is connected to the first motor and is disposed along the first direction on the side of the first motor opposite to the second motor. The second transmission assembly is connected to the second motor and is disposed on the side of the second motor opposite to the first motor along the first direction; The first motor, the second motor, the first speed change assembly, and the second speed change assembly are coaxially arranged.

19. An electric drive system, characterized in that, Includes the electric drive device as described in any one of claims 1-18.

20. An electrical device, characterized in that, Includes the electric drive device as described in any one of claims 1-18, or the electric drive system as described in claim 19.

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