Powertrain and vehicle having the same

Abstract

This invention relates to the field of power equipment and discloses a powertrain and a vehicle having the same. The powertrain includes an intermediate housing (1), a motor controller (2), and system functional components. The intermediate housing (1) has two outwardly extending first electronic control mounting seats (12) for connecting to the bottom surface of the motor controller. An accommodating space is defined between the outer wall of the intermediate housing, the bottom surface of the motor controller, and the two first electronic control mounting seats. At least a portion of the system functional components is disposed within the accommodating space. By placing the system functional components within the accommodating space defined by the outer wall of the intermediate housing, the bottom surface of the motor controller, and the two first electronic control mounting seats, this powertrain avoids exposing these system functional components, optimizes the spatial arrangement of components in the powertrain, and thus has a compact structure and a neat appearance, improving the integration of the powertrain.

Description

Technical Field

[0001] This invention relates to power equipment, and more specifically to a powertrain. Furthermore, this invention also relates to a vehicle having the powertrain. Background Technology

[0002] With the development of new energy technologies and the deterioration of the human living environment, new energy vehicles, represented by electric vehicles, are receiving increasing attention. The powertrain, which integrates a motor and a reduction gear, is one of the key components of an electric vehicle, and its high reliability, lightweight design, and high space utilization have a significant impact on the overall performance of the electric vehicle.

[0003] However, due to the need to integrate a large number of components, existing powertrains suffer from problems such as unreasonable component spatial arrangement, large size, and large space occupation, which seriously restrict their promotion and application in electric vehicles and other scenarios. Summary of the Invention

[0004] The purpose of this invention is to provide a powertrain that effectively optimizes the spatial arrangement of components, has a compact structure and a clean appearance, and has a high degree of integration.

[0005] To achieve the above objectives, the present invention provides a powertrain, comprising:

[0006] Motor controller;

[0007] The intermediate housing has two outwardly extending first electrical control mounting seats, which are used to connect to the bottom surface of the motor controller. An accommodating space is defined between the outer wall of the intermediate housing, the bottom surface of the motor controller, and the two first electrical control mounting seats.

[0008] System functional components, at least a portion of which are disposed within the receiving space.

[0009] Preferably, the outer wall portion of the intermediate box corresponding to the accommodating space is arc-shaped.

[0010] Preferably, the two first electrical control mounting bases are fixedly connected to the intermediate housing and extend from the lateral sides of the intermediate housing in a direction away from each other.

[0011] Preferably, the powertrain further includes two power components mounted opposite each other, each power component including a motor, a transmission device and a power output shaft, wherein the motor output shaft of the motor transmits power to the power output shaft through the transmission device.

[0012] Preferably, the system functional component is a locking mechanism for controlling the coupling or release of power between the two power components.

[0013] Preferably, the intermediate housing is provided with a first mounting cavity and a second mounting cavity. The first mounting cavity is located between the two motors, and the second mounting cavity is located below the longitudinal side of the first mounting cavity. The motor output shafts of the two motors extend into the first mounting cavity, and at least a portion of the power output shafts are installed in the second mounting cavity.

[0014] Preferably, at least a portion of the motor controller is located on the longitudinal side of the first mounting cavity, and at least a portion of the motor controller is located above the second mounting cavity and is mounted at an angle relative to the horizontal plane.

[0015] Preferably, the intermediate housing is further provided with a second electrical control mounting base, which is located at a different height from the first electrical control mounting base and extends from the lateral sides of the housing portion of the intermediate housing that defines the first mounting cavity.

[0016] Preferably, the intermediate housing is provided with a terminal block mounting cavity, which is located between the two motors and above the first mounting cavity.

[0017] Preferably, the intermediate housing is further provided with a longitudinally extending intermediate partition, which divides the first mounting cavity into a first left half mounting cavity and a first right half mounting cavity, and divides the second mounting cavity into a second left half mounting cavity and a second right half mounting cavity.

[0018] Preferably, the system functional component is an oil cooler or an oil pump.

[0019] A second aspect of the present invention provides a vehicle equipped with the aforementioned powertrain.

[0020] Through the above technical solution, the powertrain of the present invention sets the system functional components in the accommodating space defined by the outer wall of the intermediate housing, the bottom surface of the motor controller and the two first electronic control mounting seats, thereby avoiding the exposure of these system functional components to the outside, optimizing the spatial arrangement of the components in the powertrain, and thus having a compact structure and a neat appearance, and improving the integration of the powertrain. Attached Figure Description

[0021] Figure 1 This is a transmission principle diagram of a powertrain according to a preferred embodiment of the present invention;

[0022] Figure 2 This is a perspective structural diagram of a powertrain according to a preferred embodiment of the present invention;

[0023] Figure 3 yes Figure 2 Exploded view of the powertrain;

[0024] Figure 4 yes Figure 2 Top view of the powertrain;

[0025] Figure 5 yes Figure 2 Left view of the powertrain;

[0026] Figure 6 yes Figure 2 A three-dimensional structural diagram of the intermediate housing of the powertrain;

[0027] Figure 7 yes Figure 6 The main view of the middle enclosure, in which the three-phase terminal block cover and the boost charging terminal block cover have been removed;

[0028] Figure 8 yes Figure 6 A top view of the middle enclosure, in which the three-phase terminal block cover and the boost charging terminal block cover have been removed;

[0029] Figure 9 yes Figure 6 The right view of the middle enclosure shows that the three-phase terminal block cover and the boost charging terminal block cover have been removed.

[0030] Explanation of reference numerals in the attached figures

[0031] 1-Intermediate housing; 1a-Intermediate partition; 11-Second electrical control mounting base; 12-First electrical control mounting base; 13-First mounting cavity; 131-First left half mounting cavity; 132-First right half mounting cavity; 14-Second mounting cavity; 141-Second left half mounting cavity; 142-Second right half mounting cavity; 15-First half cover plate; 151-Power distribution connector; 16-Second half cover plate; 17-Crossbeam; 18-Third cover plate; 19-Terminal socket mounting cavity; 19a-First mounting surface; 19b-Second mounting surface; 19c- Second transverse opening; 19d - longitudinal opening; 2 - motor controller; 21 - arc-shaped structure; 3 - first motor; 4 - second motor; 5 - three-phase terminal block; 6 - boost charging terminal block; 7 - locking mechanism; 8 - gear position sensor; 9 - electronic oil pump; 10 - plate heat exchanger; 30 - first motor housing; 40 - second motor housing; 31, 41 - motor output shaft; 50 - first transmission device; 60 - second transmission device; 51, 61 - intermediate shaft; 70 - first power output shaft; 80 - second power output shaft. Detailed Implementation

[0032] The specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0033] In this invention, unless otherwise stated, directional terms such as "up," "down," "left," and "right" generally refer to the up, down, left, and right directions shown in the accompanying drawings; "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself. In this invention, directional terms such as "Z-direction" generally refer to the Z-direction of the vehicle's coordinate system where the powertrain is located; that is, when the vehicle is stationary on a horizontal road surface, its vertical direction is the Z-direction. Correspondingly, the directional term "lateral" corresponds to the Y-direction (i.e., left-right direction) of the vehicle, and "longitudinal" corresponds to the X-direction (i.e., front-back direction) of the electric vehicle. It should be noted that the correspondence between these directions and the vehicle coordinate system is only for better understanding of this invention and does not imply that the powertrain of this invention has been or will soon be installed in a vehicle; it can also be used in other suitable contexts. Furthermore, this invention can also determine "lateral" and "longitudinal" based on the axial direction of the motor output shaft in the powertrain; that is, "lateral" is the axial direction of the motor output shaft, and "longitudinal" is the horizontal direction perpendicular to the axial direction of the motor output shaft.

[0034] In addition, the terms “first”, “second”, etc., used in the following description are for clarity only, and unless otherwise stated, these terms do not represent any difference between the relevant structures or components.

[0035] Figure 1 The diagram shows the transmission principle of a powertrain. The powertrain integrates a first motor 3 and a second motor 4, which are respectively connected to an intermediate housing 1 defining a first mounting cavity 13 and a second mounting cavity 14. They are then connected to the left wheel W1 and the right wheel W1 via transmission devices (multiple sets of gears) installed within the first and second mounting cavities 13 and 14, respectively. The intermediate housing 1 may also be equipped with a locking mechanism 7 that locks or releases the transmission path from the first motor 3 to the left wheel W1 and the transmission path from the second motor 4 to the right wheel W2, thereby enabling the first motor 3 and the second motor 4 to drive the left wheel W1 and the right wheel W1 independently or synchronously.

[0036] To facilitate a better understanding of the present invention, Figure 1The diagram also schematically illustrates the specific structure of the intermediate housing 1 and the transmission device in the preferred embodiment. Specifically, a first motor housing 30 and a second motor housing 40 can be connected to the lateral sides of the intermediate housing 1, respectively. The first motor housing 30 and the second motor housing 40 can be connected to the two sides of the intermediate housing 1 by fasteners such as bolts. The first motor 3 and the second motor 4 are respectively installed in the first motor housing 30 and the second motor housing 40, so that they can be assembled into the vehicle after the sub-assembly is completed.

[0037] As described below, in a preferred embodiment of the powertrain of the present invention, a central partition 1a is provided in the intermediate housing 1, which divides the first mounting cavity 13 into a first left mounting cavity 131 and a first right mounting cavity 132, and divides the second mounting cavity 14 into a second left mounting cavity 141 and a second right mounting cavity 141. One end of each gear shaft (e.g., motor output shafts 31, 41, intermediate shafts 51, 61, power output shafts 70, 80) can be rotatably mounted to the central partition 1a via bearings. The motor output shaft 31 of the first motor 3 extends into the first left mounting cavity 131 and is driven to the first power output shaft 70 via a first transmission device 50 disposed in the second left mounting cavity 141 for driving the left wheel W1 to rotate; the motor output shaft 41 of the second motor 4 extends into the first right mounting cavity 132 and is driven to the second power output shaft 80 via a second transmission device 60 disposed in the second right mounting cavity 142 for driving the right wheel W2 to rotate. It should be noted that the above combination Figure 1 The description is only for the purpose of facilitating a holistic understanding of the transmission path and structural arrangement of the powertrain in the preferred embodiment of the present invention, and should not be construed as implying that the powertrain of the present invention necessarily has all of the above-mentioned components or structures.

[0038] Combination Figure 1 as well as Figures 2 to 9 As shown, a powertrain according to a preferred embodiment of the present invention includes an intermediate housing 1, a motor controller 2 mounted on the intermediate housing 1, and system functional components such as a locking mechanism 7. The intermediate housing 1 has two outwardly extending first electrical control mounting seats 12, which are connected to the bottom surface of the motor controller 2 and define a receiving space between the outer wall surface of the intermediate housing 1, the bottom surface of the motor controller 2, and the two electrical control mounting seats 12. At least a portion of the system functional components is disposed within this receiving space.

[0039] Therefore, the powertrain of the present invention provides a receiving space for accommodating system functional components by extending the first electronic control mounting base 12 outward and mounting the motor controller 2 on the first electronic control mounting base 12, thereby spacing at least a portion of the bottom surface of the motor controller 2 from the outer wall surface of the intermediate housing 1. In this case, by at least partially arranging the system functional components in this receiving space, these system functional components can be avoided from being exposed to the outside. This is very advantageous for powertrains that are developing towards high integration, not only effectively optimizing the spatial arrangement of its components, but also making the powertrain structure more compact and having a neat appearance and high integration, making it easy to place in a vehicle.

[0040] In a preferred embodiment, the powertrain of the present invention can be configured as a dual-electric drive assembly integrating two sets of power components. This facilitates a series of significant advantages for the vehicle through features such as independent four-wheel drive, including a smaller turning radius, ESP assistance, assisted steering, and assisted braking, resulting in excellent handling performance and high power output. Specifically, each set of power components may include a motor, a transmission device, and a power output shaft. The motor's output shaft can transmit power to the power output shaft via the transmission device to drive the corresponding wheels. Figures 1 to 4 In the preferred embodiment shown, the motors in the two sets of power components are respectively configured as a first motor 3 and a second motor 4, which are connected to the lateral sides of the intermediate housing 1 opposite to each other. For example, in Figure 4 In the view shown, the first motor 3 is connected to the right side of the middle housing 1, and the second motor 4 is connected to the left side of the middle housing 1, with the two facing each other.

[0041] The output shafts of the first motor 3 and the second motor 4 are coaxial to ensure stable and balanced power output and installation stability. In other embodiments, the output shafts of the first motor 3 and the second motor 4 can be parallel (non-coaxial). As mentioned above, for ease of assembly, the first motor housing 30 and the second motor housing 40 can be connected to the lateral sides of the intermediate housing 1, respectively. The first motor 3 is installed in the first motor housing 30, with its output shaft extending into the intermediate housing 1; the second motor 4 is installed in the second motor housing 40, with its output shaft extending into the intermediate housing 1.

[0042] The intermediate housing 1 may be provided with a terminal block mounting cavity 19, which is located between the first motor 3 and the second motor 4, and above the motor output shafts of the first motor 3 and the second motor 4, thereby making full use of the space above the motor output shafts within the intermediate housing 1. More specifically, the upper side of the terminal block mounting cavity 19 has a first upper half opening and a second upper half opening arranged longitudinally adjacent to each other. The first upper half opening has a first mounting surface 19a, on which a first half cover plate 15 for closing the first upper half opening is mounted; the second upper half opening has a second mounting surface 19b, on which a second half cover plate 16 for closing the second upper half opening is mounted. To save space above the intermediate housing 1, the first mounting surface 19a is set lower than the second mounting surface 19b. For example, in Figure 5 , Figure 6 , Figure 8 and Figure 9 In the preferred embodiment shown, the first mounting surface 19a and the second mounting surface 19b are arranged at an angle to each other, forming an inverted V-shaped angle between them. This causes the first mounting surface 19a to extend downwards at an angle relative to the horizontal plane along a longitudinal direction away from the second mounting surface 19b, thereby leaving space above the first half-cover plate 15 for arranging other components or structures. This helps to reduce the overall height of the powertrain. The second mounting surface 19b can be configured to be parallel to the horizontal plane, and the first mounting surface 19a can be arranged relatively horizontally parallel and extending at an angle relative to the longitudinal direction. In other embodiments, the first mounting surface 19a and the second mounting surface 19b can also be arranged in a stepped manner, i.e., both the first mounting surface 19a and the second mounting surface 19b are formed to extend in the horizontal plane and are located at different heights. Similarly, by making the first mounting surface 19a lower than the second mounting surface 19b, the space occupied above can be reduced.

[0043] The powertrain of this invention can also be configured to have a boost charging function, for which a corresponding boost charging terminal 6 is required. For example... Figure 6 and Figure 9As shown, a three-phase terminal block 5 and a boost charging terminal block 6 are installed in the terminal block mounting cavity 19 of the intermediate housing 1, thereby positioning the three-phase terminal block 5 and the boost charging terminal block 6 above the power output shafts of the first motor 3 and the second motor 4. As mentioned earlier, to facilitate assembly and disassembly, a first upper opening and a second upper opening can be formed on the top wall of the terminal block mounting cavity 19. The first upper opening and the second upper opening can be closed by a first half cover plate 15 and a second upper half cover plate 16, respectively. Through this compartmentalized design, the three-phase terminal block 5 and the boost charging terminal block 6 can be assembled independently during the assembly process, facilitating operation in confined spaces. Furthermore, different mounting surfaces can be used to position the corresponding terminal block covers, which is beneficial for accurately positioning their installation positions. Among them, the first half cover plate 15 corresponding to the three-phase terminal block 5 may be provided with a power distribution connector 151. The power distribution connector 151 includes a first electrical connection portion facing the inside of the terminal block mounting cavity 19 and a second electrical connection portion facing the outside of the terminal block mounting cavity 19, so as to connect an external power supply to the three-phase terminal block 5 through the first half cover plate 15.

[0044] As an alternative implementation, an integrated terminal block with three-phase terminals and step-up terminals can be installed within the terminal block mounting cavity 19. In this case, the first upper half-opening and the second upper half-opening can be configured to be through each other to allow the integrated terminal block to be installed into the terminal block mounting cavity 19. Furthermore, although described as a first half-cover plate 15 and a second half-cover plate 16, they can be configured as separate or integrated structures as needed.

[0045] For example, to ensure the rigidity of the intermediate housing 1, a crossbeam 17 can be formed at adjacent positions (i.e., at the V-shaped bend) on the mounting surfaces of the first half-cover plate 15 and the second half-cover plate 16, to separate mounting cavities for mounting the three-phase terminal block 5 and the boost charging terminal block 6, respectively. In this case, the first half-cover plate 15 and the second half-cover plate 16 can be separately configured, with the first half-cover plate 15 closing the first upper opening and the second half-cover plate 16 closing the second upper opening. The crossbeam 17 can thus ensure the positioning accuracy of the separately configured terminal block covers. Alternatively, the first upper opening and the second upper opening can be connected to each other, and correspondingly, the first half-cover plate 15 and the second half-cover plate 16 can be integrally configured. Furthermore, the three-phase terminal block 5 and the boost charging terminal block 6 can be arranged longitudinally, and the first half-cover plate 15 and the second half-cover plate 16 used to enclose them within the terminal block mounting cavity 19 can be non-coplanarly mounted.

[0046] The intermediate housing 1 may also have openings for wiring to pass through, facilitating electrical or signal connections between different components. For example... Figure 6 and Figure 9As shown, the terminal block mounting cavity 19 may have a first lateral opening (not shown) and a second lateral opening 19c formed on both lateral sides for the motor's three-phase wires and neutral wires to pass through and connect to the terminals of the terminal block. Specifically, the wires of the first motor 3 are adapted to pass through the first lateral opening into the terminal block mounting cavity 19, and the wires of the second motor 4 are adapted to pass through the second lateral opening 19c into the terminal block mounting cavity 19, thereby enabling them to be connected to the terminals of the terminal block respectively. In addition, a longitudinal opening 19d may also be formed on one longitudinal side of the terminal block mounting cavity 19. This longitudinal opening 19d is closed by a third cover plate 18 detachably connected to the intermediate housing 1. Thus, the portion facing the longitudinal opening 19d can be used to install related parts such as the motor controller 2, as described later, so that the wiring bolts of the motor controller 2 can be opened through the longitudinal opening 19d.

[0047] In a vehicle, the powertrain provides the torque to drive the wheels to rotate. For this purpose, a transmission structure such as gears is typically incorporated to output the required torque and speed. To facilitate the arrangement of various transmission and control components, the structure of the intermediate housing 1, which serves as the load-bearing base, needs to be rationally designed. In a preferred embodiment of the invention, the intermediate housing 1 may define a first mounting cavity 13 located between the first motor 3 and the second motor 4. This first mounting cavity 13 is located below the terminal block mounting cavity 19 (e.g., ...). Figure 6 As shown, the motor output shafts of the first motor 3 and the second motor 4 can extend into the first mounting cavity 13, respectively, and the terminal block mounting cavity 19 is located between the first motor 3 and the second motor 4. Furthermore, the intermediate housing 1 may also define a second mounting cavity 14 located below the longitudinal side of the first mounting cavity 13. The powertrain of the present invention may include a transmission device and a power output shaft extending at least partially within the second mounting cavity 14. The motor output shafts of the first motor 3 and the second motor 4 can transmit power to the power output shaft via the transmission device. Thus, the space between the first motor 3 and the second motor 4 not only provides the necessary space for their respective motor gears and other meshing transmission gears, but also reserves space around it for arranging other related components (such as the aforementioned terminal block mounting cavity 19 and the three-phase terminal block 5 and boost charging terminal block 6 installed therein). Furthermore, the first mounting cavity 13 and the second mounting cavity 14 are not stacked in the height direction (Z direction), but are staggered in the longitudinal direction so that they have an overlapping part in the height direction. This not only facilitates the arrangement of the transmission gears, but also effectively reduces the overall height of the powertrain, which is beneficial to saving Z-direction space.

[0048] More specifically, the intermediate housing 1 may be provided with a longitudinally extending intermediate partition 1a, thereby facilitating the rotatable installation of components such as transmission gears within the intermediate housing 1 and further improving the overall modal and NVH performance of the intermediate housing. The first mounting cavity 13 may be divided into a first left half mounting cavity 131 and a first right half mounting cavity 132 by the intermediate partition 1a, and the second mounting cavity 14 may be divided into a second left half mounting cavity 141 and a second right half mounting cavity 142 by the intermediate partition 1a. The transmission device includes a first transmission device 50 and a second transmission device 60, with the first transmission device 50 installed in the first left half mounting cavity 131 and the second left half mounting cavity 141, and the second transmission device 60 installed in the first right half mounting cavity 132 and the second right half mounting cavity 142. The power output shaft includes a first power output shaft 70 and a second power output shaft 80, with at least a portion of the first power output shaft 70 installed in the second left half mounting cavity 141 and at least a portion of the second power output shaft 80 installed in the second right half mounting cavity 142. The motor output shaft 31 of the first motor 3 extends into the first left half mounting cavity 131 and transmits power to the first power output shaft 70 through the first transmission device 50, thereby driving the left wheel W1 to rotate; the motor output shaft 41 of the second motor 4 extends into the first right half mounting cavity 132 and transmits power to the second power output shaft 80 through the second transmission device 60, thereby driving the right wheel W2 to rotate.

[0049] In a preferred powertrain of the present invention, the motor controller 2 can be installed on the longitudinal side of the intermediate housing 1. Simultaneously, a terminal block mounting cavity 19 is formed above the first mounting cavity 13 between the first motor 3 and the second motor 4. The upper opening of the terminal block mounting cavity 19 forms a first mounting surface 19a and a second mounting surface 19b that form an inverted V-shaped angle with each other. This reduces or avoids the occupation of space above the first mounting cavity, saving Z-axis space in the vehicle. Compared with traditional arrangements, the structure is more compact and has higher space utilization, thus allowing for convenient installation in a vehicle. Figure 5 and Figure 9 In the view shown, the second mounting surface 19b is formed to extend generally in the horizontal plane, while the first mounting surface 19a extends longitudinally downward from the second mounting surface 19b. Thus, at least the first half-cover plate mounted on the first mounting surface 19a can reduce the space occupied in the Z direction and facilitate interaction with the motor controller 2 arranged on the longitudinal side of the intermediate housing 1, as described later.

[0050] like Figure 9As shown, since the motor controller 2 is installed on the upper longitudinal side of the intermediate housing 1, the first mounting surface 19a for the first half cover 15 and the second mounting surface 19b for the second half cover 16 are set at an angle to each other, which cleverly solves the problem of the wiring terminal arrangement and makes the whole structure more compact, effectively reducing the space occupied in the Z direction.

[0051] With the above configuration, on the longitudinal side of the first mounting cavity 13 connected to the second mounting cavity 14, the intermediate housing 1 is formed as a recessed structure above the second mounting cavity 14. This allows the motor controller 2 to be installed, at least partially, within this recessed structure, thereby avoiding or reducing its occupation of height space. Specifically, at least a portion of the motor controller 2 can be located on the longitudinal side of the first mounting cavity 13, and at least a portion of the motor controller 2 is located above the second mounting cavity 14. In this case, the other longitudinal side of the intermediate housing 1 ( Figure 5 The right side (as seen from the perspective) can accommodate cooling components such as the electric oil pump 9 and the plate heat exchanger 10 for cooling related components in the motor assembly. Figure 5 In the preferred embodiment shown, the electronic oil pump 9 is installed on the housing portion corresponding to the second mounting cavity 14 and located below the first mounting cavity 13, thereby making full use of the surrounding space; while the plate heat exchanger 10 is installed on the housing portion corresponding to the first mounting cavity 13, thereby being in a relatively high position, which facilitates efficient heat exchange.

[0052] To fully utilize the internal space defined by the intermediate housing 1 and accommodate the circular area occupied by the transmission gear, it can have an arc-shaped peripheral wall structure, thereby forming an arc-shaped outer wall portion. In a preferred embodiment, the outer wall portion of the intermediate housing 1 corresponding to the accommodating space where system functional components are arranged can be configured to be arc-shaped. Thus, when the motor controller 2 is mounted tangentially to the intermediate housing 1, an angled space is formed between the motor controller 2 and the outer wall portion. This angled space can serve as the aforementioned accommodating space for arranging system functional components, thereby eliminating the need to specifically space the motor controller 2 from the outer wall of the intermediate housing 1, effectively improving system integration.

[0053] The two first electrical control mounting bases 12 for connecting the motor controller 2 can be configured to extend in a direction away from each other, thereby providing a larger installation space for the motor controller 2, which facilitates more stable support for the motor controller 2. Typically, the intermediate housing 1 can be a casting. Considering the increased casting difficulty that the first electrical control mounting bases 12 may bring, the two first electrical control mounting bases 12 can be fixedly connected to the intermediate housing 1 by bolts or the like, and extend from the lateral sides of the housing portion defining the second mounting cavity 14 of the intermediate housing. This configuration provides an installation base suitable for the installation needs of the motor controller 2 without significantly increasing casting difficulty, thus ensuring the motor controller 2 can be securely fixed even when positioned above the longitudinal side of the intermediate housing 1, and facilitating the tightening of the bolts used to fix the motor controller 2 from top to bottom.

[0054] In addition, a second electrical control mounting base 11 can be provided on the intermediate housing 1, just as Figures 6 to 9 As shown, the height of the second electrical control mounting base 11 is higher than the height of the first electrical control mounting base 12. Therefore, the motor controller 2 can be mounted on the intermediate housing 1 at an angle relative to the horizontal plane using the second electrical control mounting base 11 and the first electrical control mounting base 12. Furthermore, by providing multiple mounting points at different heights using the second electrical control mounting base 11 and the first electrical control mounting base 12, the mounting accuracy of the motor controller 2 on the intermediate housing 1 can be effectively ensured. Figures 6 to 8 As shown, in a preferred embodiment, the first mounting base 11 can be integrally formed with the intermediate housing 1, for example, by integral casting. More specifically, the first mounting base 11 extends laterally from both sides of the housing portion of the intermediate housing 1 that defines the first mounting cavity 13, thereby providing a relatively high mounting point.

[0055] As mentioned above, the system functional component, at least partially disposed within the housing space, can be a locking mechanism 7 mounted on the intermediate housing 1. This locking mechanism 7 extends protruding from the outer wall of the intermediate housing 1, with the protrusion extending into the space between the bottom surface of the motor controller 2 and the outer wall of the intermediate housing 1. It can be manipulated to couple or release the power between the two power components. Thus, the aforementioned space between the motor controller 2 and the intermediate housing 1 provides clearance for the protruding portions of the housing mounting components, preventing these protrusions from being exposed externally, resulting in a compact structure and a clean appearance.

[0056] In addition to the locking mechanism 7 used for switching drive modes, the system functional components described in this invention can also be other functional components disposed on the intermediate housing 1. These components can protrude from the surface of the intermediate housing 1, with the protruding portion located in the space between the motor controller 2 and the intermediate housing 1. In the preferred embodiment illustrated, a gear position sensor 8 is installed on the cavity wall of the second mounting cavity 14, protruding from its outer wall surface and extending into the space between the motor controller 2 and the second mounting cavity 14. Thus, the powertrain integrates a number of functional components with a relatively compact structure and neat appearance, facilitating intelligent control. Alternatively, the system functional components can be an oil cooler or an oil pump, etc.

[0057] like Figures 2 to 5 As shown, in the powertrain provided by the present invention, the motor controller 2 can be configured to adopt an irregularly shaped flat structure. It has an electronically controlled top cover, on which a downwardly recessed arc-shaped structure 21 can be formed, thereby not only reducing the space occupied in the Z-direction, but also improving the top cover mode through the arc-shaped structure 21.

[0058] In the powertrain of the preferred embodiment, since the first motor 3 and the second motor 4 rotate relatively independently, a high lateral modality is required. To this end, a large number of laterally extending reinforcing ribs can be provided on the intermediate housing 1, thereby achieving high NVH performance. In addition, the intermediate housing 1 is formed in an inclined shape in the longitudinal direction and has a recessed structure. In order to improve its longitudinal modality and NVH performance, multiple longitudinally extending reinforcing ribs can also be formed on the intermediate housing 1.

[0059] The present invention also provides a vehicle equipped with the above-described powertrain.

[0060] The preferred embodiments of the present invention have been described in detail above with reference to the accompanying drawings; however, the present invention is not limited thereto. Within the scope of the inventive concept, various simple modifications can be made to the technical solutions of the present invention, including combinations of various specific technical features in any suitable manner. To avoid unnecessary repetition, the present invention will not describe the various possible combinations separately. However, these simple modifications and combinations should also be considered as the content disclosed in the present invention and are all within the protection scope of the present invention.

Claims

1. A powertrain, characterized by, Comprise: A motor controller (2); An intermediate box body (1), two first electric control mounting seats (12) extending outward are arranged on the intermediate box body (1), and a second electric control mounting seat (11) is arranged at a different height position from the first electric control mounting seat (12), the two first electric control mounting seats (12) are used for connecting the bottom surface of the motor controller (2), the accommodation space is defined between the outer wall surface of the intermediate box body (1), the bottom surface of the motor controller (2) and the two first electric control mounting seats (12), the intermediate box body (1) is provided with a first mounting cavity (13) and a second mounting cavity (14), the second mounting cavity (14) is located below the longitudinal side of the first mounting cavity (13), the second electric control mounting seat (11) protrudes and extends from the two transverse sides of the box body part of the intermediate box body (1) which is defined with the first mounting cavity (13), at least part of the motor controller (2) is located on the longitudinal side of the first mounting cavity (13), and at least part of the motor controller (2) is located above the second mounting cavity (14) and is installed on the intermediate box body (1) by the first electric control mounting seat (12) and the second electric control mounting seat (11) inclined to the horizontal plane, and a terminal block mounting cavity (19) located above the first mounting cavity (13) is arranged in the intermediate box body (1); A system function piece, at least part of the system function piece is arranged in the accommodation space.

2. The powertrain of claim 1, wherein, The outer wall surface part of the intermediate box body (1) corresponding to the accommodation space is in a circular arc shape.

3. The powertrain of claim 1, wherein, The two first electric control mounting seats (12) are respectively fixedly connected with the intermediate box body (1) and extend away from each other from the two transverse sides of the intermediate box body (1).

4. The powertrain of claim 1, wherein, The power assembly further comprises two power assemblies installed opposite to each other, each power assembly comprises a motor, a transmission device and a power output shaft, a motor output shaft of the motor transmits power to the power output shaft through the transmission device, and the terminal block mounting cavity (19) is located between the two motors.

5. The powertrain of claim 4, wherein, The system function piece is a locking mechanism (7) used for controlling power coupling or release between the two power assemblies.

6. The powertrain of claim 4, wherein, The first mounting cavity (13) is located between the two motors, motor output shafts of the two motors respectively extend into the first mounting cavity (13), and at least part of the power output shaft is installed in the second mounting cavity (14).

7. The powertrain of claim 6, wherein, The intermediate box body (1) is further provided with a longitudinal intermediate partition plate (1a), the intermediate partition plate (1a) divides the first mounting cavity (13) into a first left half mounting cavity (131) and a first right half mounting cavity (132), and divides the second mounting cavity (14) into a second left half mounting cavity (141) and a second right half mounting cavity (142).

8. The powertrain of claim 1, wherein, The system function piece is an oil cooler or an oil pump.

9. A vehicle characterized by comprising: The vehicle is provided with the power assembly according to any one of claims 1 to 8.

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