Driving device, power assembly and vehicle

Abstract

The invention relates to a driving device, a power assembly and a vehicle, and belongs to the technical field of vehicles. The driving device comprises an electric driving assembly, an electric control assembly and a power supply assembly, the electric driving assembly passes through a first axis, and the electric control assembly is located on the peripheral side of the electric driving assembly along the first axis and connected with the electric driving assembly; along the first axis, the power supply assembly is located on the peripheral side of the electric drive assembly, and the power supply assembly is detachably connected with the electric drive assembly; the power source assembly and the electric control assembly are arranged in a staggered mode along the circumferential side of the electric drive assembly, and the technical problem that in the related technology, the space occupancy rate of a drive system is high is solved.

Description

Technical Field

[0001] The present invention relates to the field of vehicle technology, and in particular to a drive device, a powertrain and a vehicle. Background Art

[0002] The vehicle's drive system is its core powertrain. Taking electric vehicles as an example, the vehicle's drive system is mainly composed of three major components: the motor drive unit, the electronic control unit, and the power supply unit. These components work together to achieve efficient conversion of electrical energy into mechanical energy, thereby providing driving force for the vehicle.

[0003] The rapid development of vehicle manufacturing technology has placed ever-more stringent technical requirements on the dynamic response characteristics, control accuracy, and intelligence level of drive systems. Therefore, existing technical solutions generally adopt a highly integrated drive system design to adapt to the development needs of smart electric vehicles.

[0004] However, the current drive system has a high space occupancy rate and insufficient layout compactness, which leads to low space utilization of the entire vehicle. Summary of the Invention

[0005] The object of the present invention is to provide a drive device, a powertrain and a vehicle to overcome the technical problem of high space occupancy of the drive system in the related art.

[0006] In order to achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] According to the first aspect of the present application, the present application provides a driving device, which includes an electric drive component, an electric control component and a power supply component. The electric drive component passes through a first axis. Along the first axis, the electric control component is located on the circumferential side of the electric drive component and is connected to the electric drive component; along the first axis, the power supply component is located on the circumferential side of the electric drive component, and the power supply component is detachably connected to the electric drive component; wherein, the power supply component and the electric control component are staggered along the circumferential side of the electric drive component.

[0008] Based on the above technical means, this application optimizes the layout along the first axis of the electric drive assembly, with the electric control assembly as the center. The electric control assembly and the power supply assembly are respectively located on the circumference of the electric drive assembly and staggered along the circumference. This fully utilizes the radial and circumferential space of the electric drive assembly, avoids the volume redundancy caused by linear stacking or parallel layout, and significantly reduces the space occupancy of the overall drive device.

[0009] In addition, the electronic control components and the power supply components are not arranged along the same radial direction, but are arranged in a circumferentially staggered manner. The two do not overlap in the entire height direction, avoiding height accumulation in this direction, thereby reducing the overall height of the drive device. In this way, the space occupied by the drive device on the vehicle can be reduced accordingly, thereby improving the space utilization of the drive device.

[0010] In addition, the power supply assembly and the electric drive assembly are detachably connected so that the placement of the power supply assembly can be replaced. After the power supply assembly is removed from the electric drive assembly, the volume of the entire drive device will be further reduced, which can meet the installation requirements of a small space.

[0011] In a possible implementation, the electronic control assembly and the power supply assembly are located on the same side of the electric drive assembly.

[0012] According to the above technical means, the same-side layout makes the connection lines between the electronic control component and the electric drive component, and the power supply component and the electric drive component shorter, and the wiring is more centralized and convenient.

[0013] In one possible embodiment, the electric drive assembly includes a drive motor having a motor output shaft, the motor output shaft is parallel to the first axis, and the electronic control assembly and the power supply assembly are arranged along the first axis.

[0014] The aforementioned technical approach, arranged along the first axis, facilitates cable connections between the electronic control unit and the drive motor, and between the power supply unit and the drive motor. Furthermore, the drive unit's center of gravity is more centralized and stable, preventing vibration and imbalance caused by uneven component distribution during power transmission.

[0015] In a possible implementation, the electric drive assembly further includes a reducer, which is transmission-connected to the drive motor, and the reducer and the drive motor are coaxially arranged.

[0016] According to the above technical means, no additional connection structure and axial spacing for steering are required between the coaxially arranged reducer and drive motor, thereby reducing the space occupied by the two in the axial direction. As a result, the space utilization rate of the electric drive assembly in this application is improved, so that the space utilization rate of the entire drive device is further improved.

[0017] In one possible embodiment, the electric drive component includes a first shell and a first body, and the first body is accommodated in the first shell; the electric control component includes a second shell and a second body, and the second body is accommodated in the second shell, and the second shell is connected to the outer peripheral surface of the first shell; the power supply component includes a third shell and a third body, and the third body is accommodated in the third shell, and the third shell is connected to the outer peripheral surface of the first shell; along the first axial direction, the third shell and the second shell are staggered.

[0018] According to the above technical approach, by connecting the second and third housings to the outer circumference of the first housing and staggering them along the first axial direction, the space surrounding the first housing of the electric drive assembly is fully utilized. This avoids spatial overlap between components, effectively improving space utilization and thus enhancing the space utilization of the entire drive device.

[0019] Furthermore, the staggered placement of the components facilitates air flow between them, creating a good heat dissipation path. The surfaces of the first, second, and third housings all serve as heat dissipation surfaces, increasing the heat dissipation area. This effectively improves the heat dissipation efficiency of the entire drive unit, preventing overheating that can affect the performance and lifespan of individual components, and ensuring stable operation of the drive unit under various operating conditions.

[0020] In a possible implementation manner, the third shell is detachably connected to the first shell.

[0021] According to the above-mentioned technical means, the power supply component in this application may fail or degrade in performance during use. The detachable connection allows maintenance personnel to easily remove the power supply component from the drive device for separate inspection, testing or replacement of the power supply component without disassembling the entire drive device, thereby improving maintenance efficiency and reducing maintenance costs and difficulty.

[0022] In a possible implementation, the third shell is detachably connected to the second shell.

[0023] According to the above technical means, the power supply assembly and the electronic control assembly can be produced in a modular manner during the production process, thereby improving production efficiency. At the same time, when the power supply assembly is installed in the drive device, the stability of the power supply assembly installation is enhanced.

[0024] In a possible implementation, the drive device further includes a cooling assembly, which is connected to at least one of the electric drive assembly, the electric control assembly, and the power supply assembly.

[0025] According to the above technical means, the cooling assembly can ensure that the components of the drive device can operate in a stable temperature environment, thereby improving the working efficiency of the drive device. In one possible embodiment, the electric drive assembly includes a first shell and a first body, and the first body is accommodated in the first shell; the electric control assembly includes a second shell and a second body, and the second body is accommodated in the second shell, and the second shell is connected to the outer peripheral surface of the first shell; the power supply assembly includes a third shell and a third body, and the third body is accommodated in the third shell, and the third shell is connected to the outer peripheral surface of the first shell; along the first axial direction, the third shell and the second shell are staggered; the cooling assembly includes a cooler and a connecting pipe, the cooler is arranged in the first shell, the connecting pipe runs through the first shell, the second shell and the third shell, and both ends of the connecting pipe are connected to the cooler.

[0026] According to the above technical means, the cooler is arranged on the first shell, which can directly cool the electric drive component, and the connecting pipe runs through the three shells, which can transport the cooling medium to the electronic control component and the power supply component, thereby achieving comprehensive cooling of the electric drive component, the electronic control component and the power supply component, ensuring that each component operates within an appropriate temperature range, and improving the performance and stability of the entire drive device.

[0027] In a possible implementation manner, the cooler is located at the bottom of the first shell.

[0028] According to the above technical means, the cooling medium can flow to the cooler by its own gravity to achieve heat exchange cooling.

[0029] In a possible embodiment, the connecting pipeline includes a first pipeline and a second pipeline that are connected, at least a portion of the first pipeline is accommodated in the first shell, at least a portion of the second pipeline is accommodated in the second shell, and the first pipeline and the second pipeline are detachably connected.

[0030] According to the above technical means, the detachable connection between the first pipeline and the second pipeline not only facilitates the integration of the entire cooling assembly into the drive device, but also meets the requirements for disassembly and installation of the second shell. When the second shell needs to be disassembled, the first pipeline and the second pipeline need only be separated to release the restriction of the cooling pipeline on the second shell.

[0031] In some embodiments, the electric control assembly further includes a power assembly, which is connected to the second shell, and the power assembly and the second shell are arranged along the circumference of the electric drive assembly.

[0032] According to the above technical means, the electronic control component can also make full use of the annular space outside the electric drive component to achieve further integration of the power component and further reduce the occupied volume of the entire drive device.

[0033] According to a second aspect of the present application, a power assembly is provided, which includes the above-mentioned drive device.

[0034] According to the above technical means, the components of the drive device of the present application are compactly arranged, with high space utilization, and can meet the space layout requirements of various vehicle models.

[0035] According to a third aspect of the present application, a vehicle is provided, comprising the above-mentioned powertrain.

[0036] According to the above technical means, the internal space utilization rate of the vehicle in this application is improved, and the additional space can be used to arrange a larger capacity battery pack to increase the endurance.

[0037] In this way, the present application achieves the following beneficial effects:

[0038] (1) The present application utilizes the annular space around the electric drive assembly to stagger the electric control assembly 300 and the power supply assembly 400, so that the structure that may have been stacked in the height direction is changed into a planar, surrounding distribution. There is no need to reserve additional vertical stacking space, which significantly reduces the height of the drive device and improves the space utilization of the drive device.

[0039] (2) The drive unit can be flexibly embedded in the limited space at the rear of the vehicle. Even when the rear floor space continues to shrink, it can still make full use of the remaining space to achieve an efficient layout. This not only ensures the power transmission performance of the rear-wheel drive system, but also provides more leg and foot space for rear passengers, significantly improving ride comfort and space practicality.

[0040] It should be noted that the technical effects brought about by the implementation methods of the second and third aspects can be referred to the technical effects brought about by the corresponding implementation methods in the first aspect, and will not be repeated here.

[0041] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] The drawings herein are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present application, and together with the specification are used to explain the principles of the present application, and do not constitute an improper limitation on the present application.

[0043] Figure 1 An exploded diagram of a driving device provided in an embodiment of the present application;

[0044] Figure 2 This is one of the side views of a driving device provided in an embodiment of the present application;

[0045] Figure 3 A top view of a driving device provided in an embodiment of the present application;

[0046] Figure 4 A side sectional view of a driving device provided in an embodiment of the present application;

[0047] Figure 5 A second side view of a driving device provided in an embodiment of the present application;

[0048] Figure 6 A schematic diagram of the installation of a cooling assembly of a drive device provided in an embodiment of the present application;

[0049] Figure 7 for Figure 1 The figure shows the schematic diagram of the structure after the power supply component in the drive device is disassembled.

[0050] Reference numerals:

[0051] 100-drive motor; 101-first housing; 102-stator; 103-rotor; 104-measuring component; 105-end cover assembly; 200-reducer; 201-gear transmission assembly; 202-output assembly; 300-electronic control assembly; 301-power component; 3011-filter assembly; 3012-membrane capacitor; 3013-power component body; 302-second housing; 303-junction box cover; 304-electrical connection assembly; 305-branching assembly; 306-connector; 400-power supply assembly; 401-third housing; 402-external water pipe; 403-external wiring harness; 500-cooling assembly; 501-filter device; 502-oil pump; 503-oil cooler; 504-oil pool; 600-connector. DETAILED DESCRIPTION

[0052] In the embodiments of the present application, the terms "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, a feature specified as "first," "second," "third," "fourth," "fifth," and "sixth" may explicitly or implicitly include one or more of the features.

[0053] In the embodiments of the present application, the terms "comprises," "comprising," or any other variations thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or apparatus comprising a series of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not preclude the presence of other identical elements in the process, method, article, or apparatus comprising the element.

[0054] “A and / or B” includes the following three combinations: A only, B only, and a combination of A and B.

[0055] In the embodiments of the present application, "parallel", "perpendicular", and "equal" include the situations described and situations similar to the situations described, and the range of the similar situations is within an acceptable deviation range, wherein the acceptable deviation range is as determined by a person of ordinary skill in the art taking into account the measurement being discussed and the errors associated with the measurement of a specific quantity (i.e., the limitations of the measurement system). For example, "parallel" includes absolute parallelism and approximate parallelism, wherein the acceptable deviation range of approximate parallelism can be, for example, a deviation within 5°; "perpendicular" includes absolute perpendicularity and approximate perpendicularity, wherein the acceptable deviation range of approximate perpendicularity can also be, for example, a deviation within 5°. "Equal" includes absolute equality and approximate equality, wherein the acceptable deviation range of approximate equality can be, for example, that the difference between the two equals is less than or equal to 5% of either one.

[0056] In some embodiments, the present application provides a vehicle. The vehicle herein includes a powertrain, a vehicle body, and wheels. The powertrain and the wheels are in driving connection to enable the wheels to roll on a road surface. The powertrain and the wheels are mounted on the vehicle body. When the wheels roll on the road surface, they can carry the vehicle body along with them to achieve vehicle travel.

[0057] It should be noted that this application does not limit the type of vehicle. The vehicle may be a pure electric vehicle, a hybrid electric vehicle, a plug-in hybrid electric vehicle, or an extended-range electric vehicle. The vehicle may also be a sedan, a van, a truck, or a bus.

[0058] In addition, the powertrain in this application can form the front drive of the vehicle or the rear drive of the vehicle, and this application does not limit this. For ease of understanding, this application takes the powertrain forming the rear drive of the vehicle as an example for illustrative explanation.

[0059] In some embodiments, the powertrain in the present application includes a drive device.

[0060] On this basis, the drive device can transfer the energy generated by the vehicle's power source to the wheels, thereby enabling the vehicle to move.

[0061] In some embodiments, see Figure 1 and combined Figure 2 The drive device in this application includes an electric drive assembly, an electric control assembly 300, and a power supply assembly 400. The electric drive assembly passes through a first axis. Along the first axis, the electric control assembly 300 is located on the circumferential side of the electric drive assembly and is connected to the electric drive assembly. Along the first axis, the power supply assembly 400 is located on the circumferential side of the electric drive assembly, and the power supply assembly 400 is detachably connected to the electric drive assembly. The power supply assembly 400 and the electric control assembly 300 are staggered along the circumferential side of the electric drive assembly. In other words, the staggered arrangement of the two means that when the drive device is projected on a plane, the projections of the electric drive assembly and the electric control assembly 300 do not overlap.

[0062] It should be emphasized that the detachable connection design between the power supply assembly 400 and the electric drive assembly is only for the physical structure. In the detached state, the two still maintain power and signal transmission through a specific electrical connection method to ensure that the drive device can work normally.

[0063] Among them, the electric drive component is the core component that converts electrical energy into mechanical energy. It drives the vehicle's transmission system through principles such as electromagnetic induction, thereby making the vehicle move and providing power output for the vehicle.

[0064] The electronic control unit 300 primarily controls the operation of the electric drive unit. It receives signals from the vehicle control system and precisely controls the speed, torque, and steering of the electric drive unit to meet the vehicle's power requirements under different driving conditions. It also implements functions such as energy recovery to improve energy efficiency.

[0065] The power supply assembly 400 is responsible for providing power to the electric drive assembly and the electric control assembly 300. It typically includes a battery pack, a charging system, etc., stores electrical energy and stably supplies power to other components when needed to ensure the normal operation of the drive device.

[0066] It should be noted that the "staggered setting" mentioned in this application means that the power supply component 400 and the electronic control component 300 are arranged at different angles or positions on the circumferential side of the electric drive component to avoid overlapping of the two at the same circumferential position, thereby reducing the size of the entire drive device in the height direction to reduce the envelope size of the entire drive device.

[0067] Exemplarily, the power supply assembly 400 is detachably connected to the electric drive assembly. In another exemplary embodiment, the power supply assembly 400 has a first installation position and a second installation position. When the power supply assembly 400 is located at the first installation position, along the first axis, the power supply assembly 400 is located on the circumferential side of the electric drive assembly and is connected to the electric drive assembly. The power supply assembly 400 and the electric control assembly 300 are staggered along the circumferential side of the electric drive assembly. When the power supply assembly 400 is located at the second installation position, the power supply assembly 400 and the electric control assembly 300 are spaced apart, and the power supply assembly 400 and the electric drive assembly are spaced apart.

[0068] On this basis, when the power supply assembly 400 is in the first installation position, the present application utilizes the annular space around the electric drive assembly to stagger the electronic control assembly 300 and the power supply assembly 400. This allows the structure, which may have been stacked in the height direction, to be flattened and arranged in a surrounding manner, eliminating the need to reserve additional vertical stacking space and significantly reducing the height of the drive unit. At the same time, the compact circumferential distribution also makes the overall outline more regular, reducing the range occupied by the drive unit in three-dimensional space and reducing the envelope size, freeing up more space for the layout of other components inside the vehicle. While improving space utilization, it also helps to achieve the design goals of miniaturization and lightweighting of the vehicle.

[0069] Taking a vehicle with a rear-wheel drive powertrain as an example, the drive unit in this application can adapt to the compact floor space in the rear seats of current vehicles. By compactly arranging the electric drive assembly, electronic control assembly 300, and power supply assembly 400 along a specific axis, and staggering the power supply assembly 400 and electronic control assembly 300 along the periphery of the electric drive assembly, the height dimension of the entire drive unit is effectively compressed, significantly reducing its envelope volume. This allows the drive unit to be flexibly embedded within the limited space at the rear of the vehicle. Even with the shrinking rear floor space, it can still fully utilize the remaining space and achieve an efficient layout. This not only ensures the power transmission performance of the rear-wheel drive system, but also provides rear passengers with more leg and foot room, significantly improving ride comfort and space practicality.

[0070] Further, see Figure 1 and combined Figure 7 The power supply assembly 400 is detachably connected to the electric drive assembly so that the power supply assembly 400 can be switched between a first installation position and a second installation position. When the power supply assembly 400 is located at the second installation position, the power supply assembly 400 is spaced apart from the electronic control assembly 300, and the power supply assembly 400 is spaced apart from the electric drive assembly.

[0071] On this basis, when the power supply assembly is located in the second installation position, the power supply assembly 400 is spaced apart from the electronic control assembly 300, and the power supply assembly 400 is spaced apart from the electric drive assembly. After the power supply assembly 400 and the electric drive assembly are disassembled, the volume corresponding to the main part of the entire electric drive device is further reduced. The compact floor space in the rear row of the vehicle only needs to accommodate the electric drive assembly and the electronic control assembly 300, and the power supply assembly can be electrically connected through an external external wiring harness 403.

[0072] When the power supply assembly 400 is located at the second installation position, the power supply assembly 400 is connected to the vehicle body. For example, the power supply assembly 400 can be placed outside in the middle of the vehicle floor.

[0073] In some embodiments, see Figure 1 and combined Figure 2, the electric control component 300 and the power supply component 400 are located on the same side of the electric drive component.

[0074] Here, “the electronic control component 300 and the power supply component 400 are located on the same side of the electric drive component” means that with the electric drive component as the reference center, the electronic control component 300 and the power supply component 400 are located in the same side area in terms of spatial orientation.

[0075] The two are on the same side of the electric drive component, which means that the plane is divided into two side areas with the geometric center of the electric drive component or a certain reference line as the boundary. At this time, the projections of the electric control component 300 and the power supply component 400 both fall within the same side area.

[0076] On this basis, both the electronic control assembly 300 and the power supply assembly 400 need to be electrically connected to the electric drive assembly. Placing them on the same side of the electric drive assembly can make the connection lines more centralized, shorten the line length, reduce the complexity of the line, and facilitate installation.

[0077] For example, by placing the electronic control assembly 300 and the power supply assembly 400 above the electric drive assembly in the height direction of the vehicle, the electric drive assembly can play a structural support role.

[0078] The electric drive assembly typically features a sturdy housing and a stable base design. Mounting the electronic control assembly 300 and power supply assembly 400 atop this housing provides reliable physical support for both components, leveraging the rigid structure of the electric drive assembly. This eliminates the need for additional complex support structures, reduces the number and weight of components, and lowers assembly complexity and cost.

[0079] In some embodiments, see Figure 2 and combined Figure 3 The electric drive assembly includes a drive motor 100, which has an output shaft. The output shaft of the drive motor 100 is parallel to the first axis. Along the first axis, the electronic control assembly 300 and the power supply assembly 400 are arranged along the first axis.

[0080] For example, the core components of the drive motor 100 are primarily composed of electromechanical coupling materials such as silicon steel sheets and copper wire. The silicon steel sheets, with their high magnetic permeability and low iron loss, form the main structure of the drive motor 100's magnetic circuit, effectively guiding and constraining magnetic lines of force and improving the electromagnetic conversion efficiency of the drive motor 100. The copper wire, with its excellent electrical conductivity, serves as the winding material to carry current. Through electromagnetic induction with the silicon steel sheets, it efficiently converts electrical energy into mechanical energy. The two work together to achieve efficient coupling and conversion of electrical and mechanical energy, providing the drive device with stable and powerful power output.

[0081] On this basis, the output shaft of the drive motor 100 is arranged parallel to the first axis, which enables direct and efficient power transmission. Arranging the electronic control component 300 and the power supply component 400 along the first axis avoids spatial overlap and mutual interference between the components, making the entire drive device more compact.

[0082] In addition, the first axis can be regarded as the layout reference line of the entire drive device. The electronic control component 300 is responsible for precisely controlling the drive motor 100, while the power supply component 400 provides power to the drive motor 100 and the electronic control component 300. From the perspective of electrical connection, this arrangement can make the connection lines between the electronic control component 300 and the drive motor 100, and between the power supply component 400 and the electronic control component 300 and the drive motor 100 more regular and concise. Shorter connection lines can reduce the impact of factors such as resistance and inductance on power transmission, reducing energy loss and electromagnetic interference.

[0083] In some embodiments, see Figure 3 and combined Figure 4 The electric drive assembly further includes a reducer 200 , which is transmission-connected to the drive motor 100 , and the reducer 200 and the drive motor 100 are coaxially arranged.

[0084] Exemplarily, the reducer 200 is mainly composed of mechanical components such as shafts and gears.

[0085] On this basis, the driving device in the present application can improve the space utilization within a limited space. The driving motor 100 and the reducer 200 in the electric drive component are coaxially arranged, which can reduce the envelope size of the electric drive component along the first axis and reduce its occupied space; the electronic control component 300 is staggered with the electric drive component along the circumferential side, filling the space gap around the electric drive component and avoiding the overlapping accumulation of the two in space.

[0086] In this way, the electric drive component converts electrical energy into mechanical energy and transmits it to the reducer 200 through the drive motor 100. The reducer 200 includes a gear transmission component 201 and an output component 202 that are transmission-connected. The reducer 200 is decelerated and differentially driven by the internal gear transmission component 201 and then output from the output component 202.

[0087] See Figure 1 and combined Figure 2 and Figure 4 In addition, the electronic control component 300 includes a power component 301 and an electrical connection component 304. In conjunction with the power component 301 and the electrical connection component 304, the electronic control component 300 transmits electrical energy to the drive motor 100 and controls its operation.

[0088] The power component 301 is the core component of the electronic control component 300 that implements power conversion and power regulation. It typically includes power semiconductor devices such as insulated gate bipolar transistors and metal oxide semiconductor field effect transistors. These devices can invert the direct current input by the power supply component 400 into alternating current with adjustable frequency and amplitude according to control instructions, providing adaptive driving power to the drive motor 100. For example, during the starting phase of an electric vehicle, the power component 301 can output a low-frequency, high-current to help the drive motor 100 quickly build torque; when driving at high speeds, it is adjusted to a high-frequency, low-current to ensure the efficient operation of the drive motor 100. At the same time, the power component 301 can also bidirectionally control the flow of electrical energy. During vehicle braking, the electrical energy generated by the drive motor 100 is fed back to the power component 400 to achieve energy recovery.

[0089] The electrical connection assembly 304 is the key link that ensures smooth power transmission and stable signal interaction. It includes various connecting harnesses, connectors, busbars, etc. These components closely connect the power assembly 301 with the drive motor 100, power supply assembly 400, and other control units through a carefully designed wiring scheme and reliable connection structure. High-quality electrical connection assembly 304 not only reduces line resistance and reduces losses during power transmission, but also has excellent electromagnetic shielding performance, preventing external electromagnetic interference from affecting the normal operation of the electronic control system. For example, the high-voltage wiring harness uses special insulation materials and shielding layer design to ensure the safe transmission of high-voltage power; the precision connector ensures the accuracy and stability of signal transmission through an optimized contact structure.

[0090] During actual operation, the power component 301 and the electrical connection component 304 work closely together. The electrical connection component 304 introduces the electrical energy of the power supply component 400 into the power component 301. After conversion and regulation by the power component 301, it is accurately transmitted to the drive motor 100 through the electrical connection component 304, and the drive motor 100 operates. At the same time, the electronic control component 300 also collects the operating parameters of the drive motor 100 (such as speed, current, temperature, etc.) in real time, and transmits them to the control unit through the electrical connection component 304. The control unit issues instructions to the power component 301 according to the preset program and feedback information, dynamically adjusts the working state of the drive motor 100, and realizes precise control of the speed, torque, steering and other parameters of the drive motor 100, ensuring efficient and stable operation of the drive device.

[0091] In some embodiments, see Figure 1 and combined Figure 5The electric drive component includes a first shell 101 and a first body, and the first body is accommodated in the first shell 101; the electric control component 300 includes a second shell 302 and a second body, and the second body is accommodated in the second shell 302, and the second shell 302 is connected to the outer circumferential surface of the first shell 101; the power supply component 400 includes a third shell 401 and a third body, and the third body is accommodated in the third shell 401, and the third shell 401 is connected to the outer circumferential surface of the first shell 101; along the first axial direction, the third shell 401 and the second shell 302 are staggered.

[0092] On this basis, the first shell 101 of the electric drive component serves as the core carrier, the second shell 302 of the electronic control component 300 and the third shell 401 of the power supply component 400 are respectively connected to the outer circumference thereof and are staggered. The drive device in this application makes full use of the three-dimensional space, so that the drive device can better adapt to the vehicle space within the limited chassis space, leaving more space for the layout of other components in the vehicle.

[0093] In addition, each component has an independent shell and is staggered. During the installation process, the second shell 302 of the electronic control component 300, the third shell 401 of the power supply component 400 and the first shell 101 of the electric drive component can be connected respectively, which is simple and convenient to operate.

[0094] The second and third housings 302 and 401 are connected to the outer periphery of the first housing 101 and are staggered to form a stable support structure. When the drive device is subjected to external impact or vibration during vehicle operation, the force can be evenly distributed to each housing, enhancing the rigidity and stability of the overall structure.

[0095] In some embodiments, the power assembly 301 is connected to the second housing 302 , and the power assembly 301 and the second housing 302 are arranged along the circumference of the electric drive assembly.

[0096] Therefore, the electric control component 300 can also make full use of the annular space outside the electric drive component to achieve further integration of the power component 301 and further reduce the occupied volume of the entire drive device.

[0097] In some embodiments, see Figure 1 and combined Figure 5 , the third shell 401 is detachably connected to the first shell 101.

[0098] Furthermore, if power assembly 400 malfunctions or performance degrades, maintenance personnel can quickly disconnect third housing 401 from first housing 101 and remove the entire power assembly 400 from the drive unit. With the continuous advancement of battery technology, new battery products are continuously improving in energy density, charge and discharge performance, and other aspects. This detachable connection allows for convenient vehicle upgrades of power assembly 400. Simply remove the old third housing 401 and the internal power supply unit and install the new, compatible power assembly 400.

[0099] In some embodiments, see Figure 1 and combined Figure 5 , the third shell 401 is detachably connected to the second shell 302.

[0100] On this basis, during the production process, the electric drive assembly, electronic control assembly 300, and power supply assembly 400 can be produced separately and then assembled, which can improve production flexibility and efficiency. At the same time, the detachable connection design allows the third housing 401 to be accurately positioned and aligned with the first housing 101 and the second housing 302 during installation. The third housing 401 is connected to the two side housings separately, forming a multi-directional fastening method.

[0101] It should be emphasized that the housing described in this application is primarily defined as an outer protective structure and is not limited to a completely enclosed form. Whether a housing is completely enclosed, or has an open design, a partially hollowed-out structure, or a frame-like outer protective structure, as long as it can protect, support, and secure internal components, it falls within the scope of the housing concept in this application.

[0102] For example, the third housing 401 is connected to the second housing 302 via a connector 600. The connector assembly may include bolts for connecting the housings, quick connectors for electrical connections, and an HV wiring harness, thereby enabling rapid assembly and disassembly with the second housing 302 for plug-and-play operation. The connector 600 may be present at the connection structure of multiple components.

[0103] Exemplarily, the drive motor 100 is composed of a stator 102, a rotor 103, a measuring assembly 104, an end cover assembly 105, and a connector 600, and is mounted on the first housing 101 via the connector 600. The stator 102 can be divided into high-voltage stators, medium-voltage stators, asynchronous stators, etc., and the components are interchangeable; the rotor 103 can be divided into synchronous rotors, asynchronous rotors, etc., and the components are interchangeable; the interchangeable combination of the stator 102 and the rotor 103 enables switching and expansion of high-voltage motor drive subsystems, medium-voltage motor drive subsystems, synchronous motor drive subsystems, and asynchronous motor drive subsystems; and the length or diameter of the stator 102 and the rotor 103 can be changed to switch and expand high-performance motor drive subsystems, medium-performance motor drive subsystems, etc.

[0104] Exemplarily, the electronic control assembly 300 is composed of a power assembly 301, a third housing 401, a junction box cover 303, an electrical connection assembly 304, a branching assembly 305, a connector 306, etc. The power assembly 301, the junction box cover 303, and the third housing 401 are installed via a connector 600 to form an independent component assembly. The electrical connection assembly 304 connects the electronic control assembly 300 to the stator 102 of the drive motor 100 to achieve power and signal transmission. The power assembly 301 can be divided into a high-voltage power assembly, a medium-voltage low-power assembly, etc., and the components are interchangeable. By switching the power assembly 301, the expansion and evolution of the electronic control assembly 300 such as high voltage and medium voltage can be realized; by switching the electrical connection assembly 304, the expansion of functions such as DC boost can be achieved. The power assembly 301 is composed of components such as a filter assembly 3011, a membrane capacitor 3012, a first power assembly body 3013, and a control board to achieve rectification and inversion functions.

[0105] For example, the reducer 200 comprises a gear transmission assembly 201, an output assembly 202, and a connector 600, and is mounted on the first housing 101 via the connector 600. The gear transmission assembly 201 has both speed reduction and differential functions, with the input and output coaxial. The output assembly 202 connects to the gear transmission assembly 201 to output power. The gear transmission assembly 201 can be comprised of several components mounted within the first housing 101, as shown, or it can be a single, independent assembly directly connected to the first housing 101.

[0106] In some embodiments, see Figure 1 and combined Figure 6 The driving device also includes a cooling component 500, which is connected to at least one of the electric drive component, the electric control component 300 and the power supply component 400.

[0107] The electric drive assembly, electronic control assembly 300, and power supply assembly 400 generate a large amount of heat during operation. Excessive temperatures can cause component performance degradation or even damage. The cooling assembly 500, connected to these components, promptly removes heat and keeps them within a reasonable operating temperature range.

[0108] In some embodiments, see Figure 1 and combined Figure 5 and Figure 6 The cooling assembly 500 includes a cooler and a connecting pipe. The cooler is provided in the first shell 101. The connecting pipe runs through the first shell 101, the second shell 302 and the third shell 401. Both ends of the connecting pipe are connected to the cooler.

[0109] On this basis, the cooler is directly installed in the first shell 101, and the connecting pipes run through the first shell 101, the second shell 302, and the third shell 401 and are connected to the cooler, forming a cooling assembly. The heat generated by the electric drive assembly, the electronic control assembly 300, and the power supply assembly 400 during operation can be quickly transferred to the cooler through the coolant in the connecting pipes, achieving efficient heat dissipation. At the same time, the internal space of each component shell is used to arrange the coolant channel, further improving space utilization.

[0110] Of course, the cooling pipeline can be an independently provided connecting pipeline, or the shell structure can be fully utilized to directly construct the cooling channel by opening holes in the walls of the first shell 101, the second shell 302 and the third shell 401, which is not limited in this application.

[0111] Illustratively, the cooler consists of a filter 501, an oil pump 502, and an oil cooler 503. The filter 501 filters impurities from the oil, the oil pump 502 draws oil from the oil pool 504 and increases its pressure, and the oil cooler 503 cools the lubricating oil through heat exchange.

[0112] In some embodiments, the cooler is located at the bottom of the first shell, so that the cooling medium can flow to the cooler by its own gravity to achieve heat exchange cooling.

[0113] In some embodiments, see Figure 1 and combined Figure 5 and Figure 6 The connecting pipeline includes a first pipeline and a second pipeline connected, at least part of the first pipeline is accommodated in the first shell 101, at least part of the second pipeline is accommodated in the second shell 302, and the first pipeline and the second pipeline are detachably connected.

[0114] On this basis, the detachable connection between the first and second pipelines allows the first housing 101 and the second housing 302 to be free from the constraints of the pipeline during disassembly. Thus, the drive motor 100, reducer 200, electronic control assembly 300, power supply assembly 400, and cooling assembly 500 of the electric drive assembly are integrated into a multifunctional electric drive system.

[0115] The electrical control assembly 300 is connected to the first housing 101 via connectors 600 (bolts, quick-connect connectors, HV wiring harness) to realize the power supply function. The cooling and filtration subsystem 5.1 lubricates, cools and filters the subsystem through the housing oil channel and cooling water channel.

[0116] Correspondingly, see Figure 1 and combined Figure 7 When the power supply assembly 400 and the electric drive assembly are disassembled, the power supply assembly and the cooling assembly 500 can be connected by a fluid circuit through the external water pipe 402 .

[0117] Of course, the present application may also have other variations, such as the electronic control component 300 and the power supply component 400 are arranged on the top or front of the first shell 101; the drive motor 100 and the reducer 200 exchange positions or evolve into independent components.

[0118] In the description of the embodiments of the present application, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0119] The above are only specific embodiments of the present application, but the scope of protection of this application is not limited thereto. Any changes or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in this application should be included in the scope of protection of this application. Therefore, the scope of protection of this application should be based on the scope of protection of the claims.

Claims

1. A driving device, characterized in that: include: an electric drive assembly, the electric drive assembly passing through a first axis; An electric control component (300), located along the first axis, on a peripheral side of the electric drive component, and connected to the electric drive component; A power supply assembly (400) is located along the first axis, on a peripheral side of the electric drive assembly, and is detachably connected to the electric drive assembly; The power supply assembly (400) and the electric control assembly (300) are staggered along the circumference of the electric drive assembly.

2. The driving device according to claim 1, characterized in that The electric control component (300) and the power supply component (400) are located on the same side of the electric drive component.

3. The driving device according to claim 1, characterized in that The electric drive assembly includes: A drive motor (100) is provided, wherein the drive motor (100) has a motor (100) output shaft, wherein the motor (100) output shaft is parallel to the first axis, and along the first axis, the electric control component (300) and the power supply component (400) are arranged.

4. The driving device according to claim 3, characterized in that The electric drive assembly further includes: A reducer (200), the reducer (200) is transmission-connected to the drive motor (100), and the reducer (200) and the drive motor (100) are coaxially arranged.

5. The driving device according to claim 1, characterized in that The electric drive assembly comprises a first shell (101) and a first body, wherein the first body is accommodated in the first shell (101); The electronic control component (300) comprises a second shell (302) and a second body, wherein the second body is accommodated in the second shell (302), and the second shell (302) is connected to the outer peripheral surface of the first shell (101); The power supply assembly (400) comprises a third shell (401) and a third body, the third body is accommodated in the third shell (401), and the third shell (401) is connected to the outer peripheral surface of the first shell (101); Along the first axial direction, the third shell (401) and the second shell (302) are staggered.

6. The driving device according to claim 5, characterized in that The third shell (401) is detachably connected to the first shell (101).

7. The driving device according to claim 5, characterized in that The third shell (401) is detachably connected to the second shell (302).

8. The driving device according to claim 1, characterized in that Also includes: A cooling component (500) is connected to at least one of the electric drive component, the electric control component (300), and the power supply component (400).

9. The driving device according to claim 8, characterized in that The electric drive component comprises a first shell (101) and a first body, wherein the first body is accommodated in the first shell (101); the electric control component (300) comprises a second shell (302) and a second body, wherein the second body is accommodated in the second shell (302), and the second shell (302) is connected to the outer peripheral surface of the first shell (101); the power supply component (400) comprises a third shell (401) and a third body, wherein the third body is accommodated in the third shell (401), and the third shell (401) is connected to the outer peripheral surface of the first shell (101); along the first axial direction, the third shell (401) and the second shell (302) are staggered. The cooling assembly (500) includes a cooler and a connecting pipe. The cooler is arranged on the first shell (101). The connecting pipe runs through the first shell (101), the second shell (302) and the third shell (401). Both ends of the connecting pipe are connected to the cooler.

10. The driving device according to claim 9, characterized in that The cooler is located at the bottom of the first shell (101).

11. The driving device according to claim 9 or 10, characterized in that: The connecting pipeline comprises a first pipeline and a second pipeline connected, wherein at least a portion of the first pipeline is accommodated in the first shell (101), and at least a portion of the second pipeline is accommodated in the second shell (302), and the first pipeline and the second pipeline are detachably connected.

12. The driving device according to claim 9, characterized in that The electronic control component (300) further includes: A power component (301), the power component (301) is connected to the second shell (302), and the power component (301) and the second shell (302) are arranged along the circumference of the electric drive component.

13. A powertrain, characterized in that: include: The drive device according to any one of claims 1 to 12.

14. A vehicle, characterized in that: include: The powertrain of claim 13.

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