Electric drive assembly for a vehicle and vehicle

Abstract

The application discloses an electric drive assembly for a vehicle and the vehicle, and the electric drive assembly comprises: a speed reducer, which is provided with a speed reducer input shaft and a speed reducer output shaft, and the speed reducer input shaft is coaxially arranged with the speed reducer output shaft; a motor assembly, the output end of the motor assembly is connected with the speed reducer input shaft and coaxially arranged; a motor controller and a power supply assembly, the motor controller and the power supply assembly are separately arranged and respectively arranged on the motor assembly or the speed reducer. According to the electric drive assembly, the speed reducer input shaft is coaxially arranged with the speed reducer output shaft, the transverse size of the speed reducer is reduced, the structure of the electric drive assembly is more compact, the power supply assembly and the motor controller are separately arranged, the power supply assembly is arranged on the motor assembly, the power supply assembly can be quickly connected or separated from the three-in-one electric drive assembly, the transformation between the three-in-one electric drive assembly and the multi-in-one electric drive assembly is realized, and different electric drive requirements of the front drive and the rear drive of the whole vehicle are met.

Description

Technical Field

[0001] This invention relates to the field of vehicle electric drive technology, and in particular to an electric drive assembly for vehicles and a vehicle. Background Technology

[0002] In related technologies, in traditional electric drive assemblies, the power supply assembly is integrated inside the motor control unit, which cannot achieve plug-and-play functionality. The electric drive assembly cannot quickly switch between multi-function and three-function configurations to accommodate front-drive and rear-drive layouts. Furthermore, in traditional drive assemblies, the output axis of the reducer is parallel to the input axis of the reducer, resulting in a large space occupation for the electric drive assembly. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. To this end, one object of this invention is to provide an electric drive assembly for vehicles. According to the invention, the electric drive assembly reduces the lateral dimension of the reducer by arranging the input shaft and output shaft of the reducer coaxially, making the electric drive assembly structure more compact. The power supply assembly and motor controller are separately configured, with the power supply assembly mounted on the motor assembly, allowing the power supply assembly to be quickly connected or disconnected from a three-in-one electric drive assembly. This enables the conversion between a three-in-one electric drive assembly and a multi-in-one electric drive assembly, meeting the different electric drive requirements of front-wheel drive and rear-wheel drive vehicles.

[0004] The present invention also proposes a vehicle having the above-described electric drive assembly.

[0005] The electric drive assembly for a vehicle according to the present invention includes: a reducer having an input shaft and an output shaft, the input shaft and the output shaft being arranged coaxially; a motor assembly having an output end connected to and coaxially arranged with the input shaft of the reducer; a motor controller and a power supply assembly having the motor controller and the power supply assembly being separately disposed and respectively disposed on the motor assembly or the reducer.

[0006] According to the present invention, the electric drive assembly reduces the lateral dimension of the reducer by aligning the axis of the reducer input shaft with the axis of the reducer output shaft, making the entire electric drive assembly structure more compact. This helps save interior space occupied by the electric drive assembly and facilitates its installation within the limited space of the vehicle. The motor controller and power supply assembly are constructed as separate units, and the power supply assembly can be bolted to the motor assembly, allowing the power supply assembly to be quickly connected or disconnected from the three-in-one electric drive assembly. This enables the conversion between the three-in-one electric drive assembly and the multi-in-one electric drive assembly, meeting the different electric drive requirements of front-wheel drive and rear-wheel drive vehicles.

[0007] According to some embodiments of the present invention, the motor assembly includes: a motor housing, a first mounting portion and a second mounting portion formed therein, a motor controller connected to the first mounting portion, and a power supply assembly connected to the second mounting portion; wherein the first mounting portion and the second mounting portion are located on the same side or adjacent side of the motor housing.

[0008] According to some embodiments of the present invention, a transfer channel is provided inside the motor housing, a first channel is provided inside the power supply assembly, and a second channel is provided inside the motor controller, wherein the first channel and the second channel are respectively connected to the transfer channel.

[0009] According to some embodiments of the present invention, the reducer is provided with a reducer housing, the reducer housing and the motor housing are constructed as an integral housing; wherein a third flow channel is formed on the integral housing, the third flow channel being adapted to exchange heat with the coolant passing through the second heat exchange flow channel.

[0010] According to some embodiments of the present invention, the electric drive assembly further includes: a heat exchange device, wherein a first cavity and a second cavity are formed therein, which are respectively connected to the third flow channel and the second flow channel, the first cavity and the second cavity are isolated from each other, and the cooling medium flowing through the first cavity exchanges heat with the coolant flowing through the second cavity.

[0011] According to some embodiments of the present invention, the electric drive assembly further includes: an oil collecting device, wherein an oil collecting chamber is provided in the oil collecting device and the oil collecting chamber is in communication with the third flow channel.

[0012] According to some embodiments of the present invention, the electric drive assembly further includes a filter device disposed between the oil collection chamber and the third flow channel.

[0013] According to some embodiments of the present invention, the electric drive assembly further includes a drive pump, the drive pump being connected to the oil collection device and adapted to drive the flow of cooling medium in the third flow channel.

[0014] According to some embodiments of the present invention, the power supply assembly is provided with a power supply terminal, which is adapted to be electrically connected to the communication module and to supply power to the communication module.

[0015] The vehicle according to the present invention is briefly described below.

[0016] The vehicle according to the present invention is equipped with the electric drive assembly described in any of the above embodiments. Since the vehicle according to the present invention is equipped with the electric drive assembly described in any of the above embodiments, the electric drive assembly installed in the vehicle according to the present application has higher overall efficiency, more compact structure, and superior performance, thereby improving the vehicle's driving range and operational reliability.

[0017] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0018] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0019] Figure 1 This is a front view of an electric drive assembly according to an embodiment of the present invention;

[0020] Figure 2 This is a schematic diagram of the cooling system circulation of an electric drive assembly according to an embodiment of the present invention;

[0021] Figure 3 This is a perspective view of an electric drive assembly according to an embodiment of the present invention;

[0022] Figure 4 This is a side view of an electric drive assembly according to an embodiment of the present invention.

[0023] Figure label:

[0024] 100. Electric drive assembly;

[0025] 11. Reducer; 12. Motor assembly; 13. Motor controller; 14. Power supply assembly;

[0026] 21. Drive pump; 22. Filter device; 23. Third flow channel; 24. Oil collection device; 25. Heat exchange device;

[0027] 26. Transfer channel. Detailed Implementation

[0028] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0029] In related technologies, in traditional electric drive assemblies, the power supply assembly is integrated inside the motor control unit, which cannot achieve plug-and-play functionality. The electric drive assembly cannot quickly switch between multi-function and three-function configurations to accommodate front-drive and rear-drive layouts. Furthermore, in traditional drive assemblies, the output axis of the reducer is parallel to the input axis of the reducer, resulting in a large space occupation for the electric drive assembly.

[0030] The following is for reference. Figures 1-4 An electric drive assembly according to an embodiment of the present invention is described.

[0031] The electric drive assembly 100 for a vehicle according to the present invention includes: a reducer 11, a motor assembly 12, a motor controller 13, and a power supply assembly 14. The reducer 11 is provided with a reducer 11 input shaft and a reducer 11 output shaft, which are arranged coaxially. The output end of the motor assembly 12 is connected to and coaxially arranged with the reducer 11 input shaft. The motor controller 13 and the power supply assembly 14 are separately provided and respectively disposed on the motor assembly 12 or the reducer 11.

[0032] In some specific embodiments, the electric drive assembly 100 consists of a reducer 11, a motor assembly 12, a motor controller 13, and a power supply assembly 14. The three-in-one electric drive assembly 100 generally consists of the reducer 11, the motor assembly 12, and the motor controller 13. The housings of the reducer 11, the motor assembly 12, and the motor controller 13 are integrated, improving the integration of the three-in-one electric drive assembly 100. The reducer 11 has an input shaft and an output shaft, with the axis of the input shaft coinciding with the axis of the output shaft. This reduces the lateral dimension of the reducer 11, making the entire electric drive assembly 100 more compact and saving interior space. This facilitates efficient operation of the electric drive assembly within the limited space of the vehicle. The three-in-one electric drive assembly 100 is installed in a single unit, with the input shaft of the reducer 11 connected and coaxially arranged with the output end of the motor assembly 12. The reducer 11 and the motor assembly 12 are directly connected without the need for additional transmission devices such as gearboxes or pulleys, simplifying the transmission chain, reducing energy loss during power transmission, and improving transmission efficiency. The motor controller 13 and the power supply assembly 14 are constructed as separate units. The power supply assembly 14 is detachably mounted on the motor assembly 12 or the reducer 11. The power supply assembly 14 can be bolted to the motor assembly 12, allowing the power supply assembly 14 to be quickly connected to or disconnected from the three-in-one electric drive assembly 100. This enables the conversion between the three-in-one electric drive assembly 100 and the multi-in-one electric drive assembly 100, meeting the different electric drive requirements of the front-wheel drive and rear-wheel drive of the vehicle.

[0033] According to the present invention, the electric drive assembly 100 reduces the lateral dimension of the reducer 11 by aligning the axis of the input shaft of the reducer 11 with the axis of the output shaft of the reducer 11, making the entire electric drive assembly 100 structure more compact. This helps save the vehicle interior space occupied by the electric drive assembly 100 and facilitates the installation of the electric drive assembly 100 in the limited space of the vehicle. The motor controller 13 and the power supply assembly 14 are constructed as separate structures. The power supply assembly 14 can be bolted to the motor assembly 12, allowing the power supply assembly 14 to be quickly connected or disconnected from the three-in-one electric drive assembly 100. This realizes the conversion between the three-in-one electric drive assembly 100 and the multi-in-one electric drive assembly 100, meeting the different electric drive requirements of the front-wheel drive and rear-wheel drive of the vehicle.

[0034] According to some embodiments of the present invention, the motor assembly 12 includes: a motor housing, a first mounting portion and a second mounting portion formed therein, a motor controller 13 connected to the first mounting portion, and a power supply assembly 14 connected to the second mounting portion; wherein the first mounting portion and the second mounting portion are located on the same side or adjacent sides of the motor housing.

[0035] In some specific embodiments, a motor housing is provided on the outer periphery of the motor assembly 12, a first mounting part is formed on the top of the motor housing, and a second mounting part is formed on one side of the width direction of the motor housing. The motor controller 13 is disposed on the first mounting part, and the power supply assembly 14 is connected to the second mounting part by bolts, so that the power supply assembly 14 can be quickly connected or disconnected from the three-in-one electric drive assembly 100, thereby realizing the conversion between the three-in-one electric drive assembly 100 and the multi-in-one electric drive assembly 100, meeting the different electric drive requirements of the front-wheel drive and rear-wheel drive of the vehicle. The motor controller 13 and the power supply assembly 14 are arranged adjacent to each other, which optimizes the electrical connection path between the motor controller 13 and the power supply assembly 14, reduces signal transmission delay, and improves the response speed and control accuracy of the electric drive assembly 100.

[0036] According to some embodiments of the present invention, a transfer channel 26 is provided inside the motor housing, a first channel is provided in the power supply assembly 14, and a second channel is provided inside the motor controller 13. The first channel and the second channel are respectively connected to the transfer channel 26. The cooling medium enters the power supply assembly 14 from the first channel. After cooling the power supply assembly 14, the cooling medium flows from the first channel into the transfer channel 26 provided inside the motor housing. The cooling medium enters the second cooling channel provided inside the motor controller through the transfer channel 26 and cools the internal components of the motor controller 13, thereby achieving cooling of the power supply assembly 14 and the motor controller 13.

[0037] According to some embodiments of the present invention, the reducer 11 is provided with a reducer 11 housing, and the reducer 11 housing and the motor housing are constructed as an integral housing; wherein a third flow channel 23 is formed on the integral housing, and the third flow channel 23 is adapted to exchange heat with the coolant passing through the second heat exchange flow channel.

[0038] In some specific embodiments, a reducer 11 housing is provided on the outer periphery of the reducer 11. The reducer 11 housing and the motor housing are constructed as an integral housing, which reduces the number of parts in the electric drive assembly 100, simplifies the structure of the electric drive assembly 100, and makes the electric drive assembly 100 more compact. A third flow channel 23 is formed on the motor housing. The third flow channel 23 can exchange heat with the second cooling flow channel. On the one hand, it realizes the cooling cycle among the motor assembly 12, reducer 11, power supply assembly 14 and motor controller 13. On the other hand, it can further reduce the temperature of the cooling medium in the third flow channel 23, thereby better cooling the inside of the motor assembly 12 and the reducer 11, and improving the cooling efficiency of the motor assembly 12 and the reducer 11.

[0039] According to some embodiments of the present invention, the electric drive assembly 100 further includes a heat exchange device 25, wherein a first cavity and a second cavity are formed in the heat exchange device 25, which are respectively connected to the third flow channel 23 and the second flow channel. The first cavity and the second cavity are isolated from each other. The isolation design of the first cavity and the second cavity ensures that the cooling medium in the third flow channel 23 will not come into direct contact with the cooling medium in the second cooling flow channel, thereby avoiding possible chemical reactions or contamination. The cooling medium flowing through the first cavity exchanges heat with the coolant flowing through the second cavity to reduce the temperature of the cooling medium flowing in the third flow channel 23, thereby better cooling the inside of the motor assembly 12 and the reducer 11, and improving the efficiency of cooling the motor assembly 12 and the reducer 11.

[0040] According to some embodiments of the present invention, the electric drive assembly 100 further includes an oil collection device 24, which has an oil collection chamber and is connected to the third flow channel 23.

[0041] In some specific embodiments, the oil collecting device 24 is disposed on the motor housing and is integrally constructed with the motor housing. An oil collecting chamber is formed inside the oil collecting device 24, and oil is stored in the oil collecting chamber. The oil collecting chamber is connected to the third flow channel 23, the inside of the motor assembly 12, and the inside of the reducer 11. The cooling medium in the oil collecting chamber can flow into the inside of the motor assembly 12 and the reducer through the third flow channel 23. The cooling medium after heat exchange with the motor assembly 12 and the reducer 11 can also flow into the oil collecting chamber. The existence of the oil collecting chamber enables the cooling system of the electric drive assembly 100 to replenish the cooling medium in time, promotes the circulation of the cooling medium, ensures that the components of the electric drive assembly 100 can be continuously cooled, and improves the operating efficiency and thermal stability of the electric drive assembly 100.

[0042] In addition, such as Figure 2 The horizontal line inside the oil collecting device 24 shown indicates the oil level.

[0043] According to some embodiments of the present invention, the electric drive assembly 100 further includes a filter device 22, which is disposed between the oil collecting chamber and the third flow channel 23. The cooling medium in the oil collecting chamber first flows into the filter device 22 through the third flow channel 23, and the cooling medium after being filtered by the filter device 22 flows into the heat exchange device 25 through the third flow channel 23. The cooling medium in the oil collecting chamber can be configured as oil. The filter device 22 can intercept impurities and particulate matter in the cooling medium, prevent these contaminants from entering the third flow channel 23, avoid clogging the third flow channel 23 or the heat exchange device 25, thereby ensuring the efficient operation of the cooling system and extending the service life of the electric drive assembly 100.

[0044] According to some embodiments of the present invention, the electric drive assembly 100 further includes a drive pump 21, which is connected to the oil collection device 24 and is adapted to drive the flow of cooling medium in the third flow channel 23.

[0045] In some specific embodiments, a drive pump 21 connected to the oil collection chamber is also provided on the motor housing. The drive pump 21 can actively suck and push to make the cooling medium in the oil collection chamber circulate in the third flow channel 23, ensuring that the cooling medium can cover all key parts of the electric drive assembly 100, and timely remove the heat generated by the motor, electronic control and reducer 11, etc. At the same time, it ensures the circulation of oil, reduces the wear of key components of the electric drive assembly 100, and extends the service life of the electric drive assembly 100.

[0046] According to some embodiments of the present invention, the power supply assembly 14 is provided with power supply terminals, which are adapted to be electrically connected to and supply power to the communication module. The power supply terminals directly supply power to the communication module, ensuring that the communication module can obtain stable and sufficient power, avoiding data transmission interruption or errors caused by unstable power supply, and enabling the communication module to be quickly connected or disconnected from the power supply assembly 14, and the communication module to be quickly combined and disconnected from the three-in-one electric drive assembly, thereby realizing the conversion between the three-in-one electric drive assembly 100 and the multi-in-one electric drive assembly 100, meeting the different electric drive requirements of the front-wheel drive and rear-wheel drive of the vehicle.

[0047] The electric drive assembly 100 according to the present invention is briefly described below.

[0048] The vehicle according to the present invention is equipped with the electric drive assembly 100 described in any of the above embodiments. Since the vehicle according to the present invention is equipped with the electric drive assembly 100 described in any of the above embodiments, the electric drive assembly 100 installed in the vehicle according to the present application has higher overall efficiency, more compact structure, and better performance, thereby improving the vehicle's driving range and operational reliability.

[0049] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0050] In the description of this invention, "first feature" and "second feature" may include one or more of the features.

[0051] In the description of this invention, "a plurality of" means two or more.

[0052] In the description of this invention, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0053] In the description of this invention, the terms "above," "over," and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0054] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0055] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An electric drive assembly for a vehicle, characterized in that, include: The reducer (11) is provided with a reducer (11) input shaft and a reducer (11) output shaft, and the reducer (11) input shaft and the reducer (11) output shaft are arranged coaxially. The motor assembly (12) has its output end connected to and coaxially arranged with the input shaft of the reducer (11); The motor controller (13) and the power supply assembly (14) are separately configured and respectively mounted on the motor assembly (12) or the reducer (11); The motor assembly (12) includes: The motor housing has a first mounting portion and a second mounting portion formed therein. The motor controller (13) is connected to the first mounting portion, and the power supply assembly (14) is connected to the second mounting portion. The first mounting portion and the second mounting portion are located on the same side or adjacent side of the motor housing; The motor housing is provided with a transfer channel (26), the power supply assembly (14) is provided with a first channel, and the motor controller (13) is provided with a second channel. The first channel and the second channel are respectively connected to the transfer channel (26).

2. The electric drive assembly for a vehicle according to claim 1, characterized in that, The reducer (11) is provided with a reducer (11) housing, and the reducer (11) housing and the motor housing are constructed as an integral housing; wherein A third flow channel (23) is formed on the integral housing, the third flow channel (23) being adapted to exchange heat with the coolant passing through the second flow channel.

3. The electric drive assembly for a vehicle according to claim 2, characterized in that, Also includes: The heat exchange device (25) has a first cavity and a second cavity that are respectively connected to the third flow channel (23) and the second flow channel. The first cavity and the second cavity are isolated from each other, and the cooling medium flowing through the first cavity exchanges heat with the cooling liquid flowing through the second cavity.

4. The electric drive assembly for a vehicle according to claim 2, characterized in that, Also includes: An oil collecting device (24) is provided with an oil collecting chamber, which is connected to the third flow channel (23).

5. The electric drive assembly for a vehicle according to claim 4, characterized in that, Also includes: A filter device (22) is disposed between the oil collection chamber and the third flow channel (23).

6. The electric drive assembly for a vehicle according to claim 5, characterized in that, Also includes: A drive pump (21) is connected to the oil collection device (24) and is adapted to drive the flow of cooling medium in the third flow channel (23).

7. The electric drive assembly for a vehicle according to claim 1, characterized in that, The power supply assembly (14) is provided with a power supply terminal, which is adapted to be electrically connected to the communication module and supply power to the communication module.

8. A vehicle, characterized in that, Includes the electric drive assembly as described in any one of claims 1-7.

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