Electric drive assembly for vehicle and vehicle

Abstract

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

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle electric drive, and in particular to an electric drive assembly for a vehicle and the vehicle. Background Art

[0002] In the related technology, in the traditional electric drive assembly, the power supply assembly is integrated inside the motor control and cannot be plug-and-play. The electric drive assembly cannot quickly switch between all-in-one and three-in-one to meet the front-wheel drive and rear-wheel drive layout. In addition, the axis of the reducer output end in the traditional drive assembly is parallel to the axis of the reducer input end, resulting in the electric drive assembly occupying a large space. Summary of the invention

[0003] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, one purpose of the present invention is to propose an electric drive assembly for a vehicle, wherein the electric drive assembly according to the present invention arranges the reducer input shaft and the reducer output shaft coaxially, thereby reducing the lateral size of the reducer, making the electric drive assembly structure more compact, and the power supply assembly and the motor controller are separately arranged, and the power supply assembly is arranged on the motor assembly, so that the power supply assembly can be quickly connected or separated from the three-in-one electric drive assembly, thereby realizing the conversion between the three-in-one electric drive assembly and the multi-in-one electric drive assembly, and meeting the different electric drive requirements of the front drive and rear drive of the whole vehicle.

[0004] The present invention also provides a vehicle having the electric drive assembly.

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

[0006] According to the electric drive assembly of the present invention, the axis of the reducer input shaft coincides with the axis of the reducer output shaft, thereby reducing the lateral size of the reducer, making the entire electric drive assembly structure more compact, which is beneficial to saving the space occupied by the electric drive assembly in the vehicle and facilitating the installation of the electric drive assembly in the limited space of the vehicle. The motor controller and the power supply assembly are constructed as a split structure, and the power supply assembly can be connected to the motor assembly by bolts, so that the power supply assembly can be quickly connected to or separated from the three-in-one electric drive assembly, thereby realizing 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 the front-wheel drive and rear-wheel drive of the whole vehicle.

[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 in the motor housing, the motor controller is connected to the first mounting portion, and the power supply assembly is 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.

[0008] According to some embodiments of the present invention, a transfer channel is provided in the motor housing, a first channel is provided in the power supply assembly, and a second channel is provided in the motor controller, and 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, and the reducer housing and the motor housing are constructed as an integrated housing; wherein a third flow channel is formed on the integrated housing, and the third flow channel is suitable for exchanging 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, in which a first chamber and a second chamber are formed which are respectively connected to the third flow channel and the second flow channel, the first chamber and the second chamber are isolated from each other, and the cooling medium flowing through the first chamber exchanges heat with the coolant flowing through the second chamber.

[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 communicated with the third flow channel.

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

[0013] According to some embodiments of the present invention, the electric drive assembly further includes: a driving pump, which is connected to the oil collecting device and is suitable for driving the cooling medium in the third flow channel to flow.

[0014] According to some embodiments of the present invention, a power supply terminal is provided on the power supply assembly, and the power supply terminal is suitable for being electrically connected to the communication module and supplying power to the communication module.

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

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

[0017] Additional aspects and advantages of the present invention will be given in part in the following description and in part will be obvious from the following description, or will be learned through practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

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

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

[0023] Reference numerals:

[0024] 100. Electric drive assembly;

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

[0026] 21. driving pump; 22. filtering device; 23. third flow channel; 24. oil collecting device; 25. heat exchange device;

[0027] 26. Transfer flow channel. DETAILED DESCRIPTION

[0028] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0029] In the related technology, in the traditional electric drive assembly, the power supply assembly is integrated inside the motor control and cannot be plug-and-play. The electric drive assembly cannot quickly switch between all-in-one and three-in-one to meet the front-wheel drive and rear-wheel drive layout. In addition, the axis of the reducer output end in the traditional drive assembly is parallel to the axis of the reducer input end, resulting in the electric drive assembly occupying a large space.

[0030] Reference below Figure 1-Figure 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 comprises: 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, and the reducer 11 input shaft and the reducer 11 output shaft are coaxially arranged; the output end of the motor assembly 12 is connected to the reducer 11 input shaft and is coaxially arranged; the motor controller 13 and the power supply assembly 14 are separately arranged and are respectively arranged on the motor assembly 12 or the reducer 11.

[0032] In some specific embodiments, the electric drive assembly 100 is composed 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 is generally composed of a reducer 11, a motor assembly 12 and a motor controller 13. The reducer 11, the motor assembly 12 housing and the motor controller 13 housing are designed in an integrated manner, which improves the integration of the three-in-one electric drive assembly 100. The reducer 11 is formed with a reducer 11 input shaft and a reducer 11 output shaft. The axis of the reducer 11 input shaft coincides with the axis of the reducer 11 output shaft, which reduces the lateral size of the reducer 11, making the entire electric drive assembly 100 more compact, which is beneficial to saving the space in the vehicle occupied by the electric drive assembly 100 and facilitating the installation of the electric drive assembly in the limited space of the vehicle. The three-in-one electric drive assembly 100 is installed, and the input shaft of the reducer 11 is connected to the output end of the motor assembly 12 and is coaxially arranged. The reducer 11 and the motor assembly 12 are directly connected without the need for an additional transmission device, such as a gear box or a pulley, which simplifies the transmission chain, reduces energy loss during power transmission, and improves transmission efficiency. The motor controller 13 and the power supply assembly 14 are constructed as a split structure. The power supply assembly 14 is detachably arranged on the motor assembly 12 or the reducer 11. The power supply assembly 14 can be connected to the motor assembly 12 by bolts, so that the power supply assembly 14 can be quickly connected to or separated 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 drive and rear drive of the whole vehicle.

[0033] According to the electric drive assembly 100 of the present invention, the axis of the input shaft of the reducer 11 coincides with the axis of the output shaft of the reducer 11, thereby reducing the lateral size of the reducer 11, making the entire electric drive assembly 100 more compact, which is beneficial to saving the space in the vehicle occupied by the electric drive assembly 100 and facilitating 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 a split structure, and the power supply assembly 14 can be connected to the motor assembly 12 by bolts, so that the power supply assembly 14 can be quickly connected to or separated 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 whole 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 in the motor housing, 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 periphery of the motor assembly 12, a first mounting portion is formed on the top of the motor housing, a second mounting portion is formed on one side in the width direction of the motor housing, the motor controller 13 is provided on the first mounting portion, and the power supply assembly 14 is connected to the second mounting portion by bolts, so that the power supply assembly 14 can be quickly connected to or separated from the three-in-one electric drive assembly 100, thereby realizing the conversion between the three-in-one electric drive assembly 100 and the all-in-one electric drive assembly 100, meeting the different electric drive requirements of the front drive and rear drive of the whole vehicle, and 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 the 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 in the motor housing, a first channel is provided in the power supply assembly 14, and a second channel is provided in the motor controller 13. The first channel and the second channel are respectively connected to the transfer channel 26, wherein the cooling medium enters the power supply assembly 14 from the first channel. After the cooling medium cools the power supply assembly 14, the cooling medium flows from the first channel into the transfer channel 26 provided in the motor housing. The cooling medium enters the second cooling channel provided inside the electric control through the transfer channel 26, and cools the internal components of the motor controller 13, thereby realizing the 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 integrated housing; wherein a third flow channel 23 is formed on the integrated housing, and the third flow channel 23 is suitable for heat exchange with the coolant passing through the second heat exchange flow channel.

[0038] In some specific embodiments, a reducer 11 housing is provided on the periphery of the reducer 11, and the reducer 11 housing and the motor housing are constructed as an integrated housing, which reduces the number of components of 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, and 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, the reducer 11, the power supply assembly 14 and the motor controller 13, and on the other hand, it can further reduce the temperature of the cooling medium in the third flow channel 23, so as to better cool the inside of the motor assembly 12 and the reducer 11, thereby improving the efficiency of cooling the motor assembly 12 and the reducer 11.

[0039] According to some embodiments of the present invention, the electric drive assembly 100 also includes: a heat exchange device 25, in which a first cavity and a second cavity are formed, which are connected to the third flow channel 23 and the second flow channel respectively, and 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 directly contact the cooling medium in the second cooling flow channel, thereby avoiding possible chemical reactions or contamination, and 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 inside of the reducer 11, thereby 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 collecting device 24 , in which an oil collecting chamber is provided, and the oil collecting chamber is communicated with the third flow channel 23 .

[0041] In some specific embodiments, the oil collecting device 24 is arranged on the motor housing and is constructed as an integral structure with the motor housing. An oil collecting chamber is formed in the oil collecting device 24, and the oil is stored in the oil collecting chamber. The oil collecting chamber is respectively connected with the third flow channel 23 and the interior of the motor assembly 12 and the interior of the reducer 11. The cooling medium in the oil collecting chamber can flow into the motor assembly 12 and the reducer through the third flow channel 23, and 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 real time, promotes the circulation of the cooling medium, ensures that the various 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, if Figure 2 The horizontal line in the oil collecting device 24 shown indicates the liquid level of the oil.

[0043] According to some embodiments of the present invention, the electric drive assembly 100 also includes: a filter device 22, which is arranged 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 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 constructed as oil. The filter device 22 can intercept impurities and particulate matter in the cooling medium to prevent these pollutants from entering the third flow channel 23 and 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 driving pump 21 , which is connected to the oil collecting device 24 and is suitable for driving the cooling medium in the third flow channel 23 to flow.

[0045] In some specific embodiments, a driving pump 21 connected to the oil collecting chamber is also provided on the motor housing. The driving pump 21 can cause the cooling medium in the oil collecting chamber to circulate in the third flow channel 23 through active suction and pushing, thereby ensuring that the cooling medium can cover all key parts of the electric drive assembly 100, and promptly take away the heat generated by the motor, electronic control and reducer 11, while ensuring the circulation of oil, reducing the wear of key components of the electric drive assembly 100, and extending the service life of the electric drive assembly 100.

[0046] According to some embodiments of the present invention, a power supply terminal is provided on the power supply assembly 14, and the power supply terminal is suitable for being electrically connected to the communication module and supplying power to the communication module. The electrical terminal directly supplies power to the communication module, thereby ensuring that the communication module can obtain stable and sufficient power, avoiding data transmission interruption or errors caused by unstable power supply, and at the same time allowing the communication module to be quickly connected to or separated from the power supply assembly 14, and the communication module to be quickly combined with and separated from the three-in-one electric drive assembly, thereby realizing the conversion between the three-in-one electric drive assembly 100 and the all-in-one electric drive assembly 100, meeting the different electric drive requirements of the front-wheel drive and rear-wheel drive of the whole 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 provided with the electric drive assembly 100 described in any one of the above embodiments. Since the vehicle according to the present invention is provided with the electric drive assembly 100 described in any one of the above embodiments, the electric drive assembly 100 arranged in the vehicle according to the present application has higher overall efficiency, more compact structure, and more superior performance, thereby improving the vehicle's cruising range and reliability during operation.

[0049] In the description of the present invention, it is to be understood that the terms “center”, “longitudinal”, “lateral”, “length”, “width”, “thickness”, “up”, “down”, “front”, “back”, “left”, “right”, “vertical”, “horizontal”, “top”, “bottom”, “inside”, “outside”, “clockwise”, “counterclockwise”, “axial”, “radial”, “circumferential”, etc., indicating orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

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

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

[0052] In the description of the present invention, a first feature being “on” or “under” a second feature may include that the first and second features are directly in contact with each other, or may include that the first and second features are not in direct contact with each other but are in contact with each other via another feature therebetween.

[0053] In the description of the present invention, “on”, “over” and “above” a first feature from a second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is horizontally higher than the second feature.

[0054] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.

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

Claims

1. An electric drive assembly for a vehicle, characterized in that: include: A reducer (11), wherein 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 coaxially arranged; A motor assembly (12), wherein the output end of the motor assembly (12) is connected to the input shaft of the reducer (11) and is coaxially arranged; A motor controller (13) and a power supply assembly (14), wherein the motor controller (13) and the power supply assembly (14) are separately arranged and are respectively arranged on the motor assembly (12) or the reducer (11).

2. The electric drive assembly for a vehicle according to claim 1, characterized in that: The motor assembly (12) comprises: A motor housing, wherein a first mounting portion and a second mounting portion are formed in the motor housing, the motor controller (13) is connected to the first mounting portion, and the power supply assembly (14) is 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.

3. The electric drive assembly for a vehicle according to claim 2, characterized in that: A switching flow channel (26) is provided in the motor housing, a first flow channel is provided in the power supply assembly (14), and a second flow channel is provided in the motor controller (13), and the first flow channel and the second flow channel are respectively connected to the switching flow channel (26).

4. The electric drive assembly for a vehicle according to claim 3, 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 shell, and the third flow channel (23) is suitable for exchanging heat with the coolant passing through the second flow channel.

5. The electric drive assembly for a vehicle according to claim 4, characterized in that: Also includes: A heat exchange device (25), wherein a first cavity and a second cavity are formed in the heat exchange device (25), the first cavity and the second cavity being connected to the third flow channel (23) and the second flow channel respectively, the first cavity and the second cavity being isolated from each other and the cooling medium flowing through the first cavity exchanges heat with the cooling liquid flowing through the second cavity.

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

7. The electric drive assembly for a vehicle according to claim 6, characterized in that: Also includes: A filter device (22), wherein the filter device (22) is arranged between the oil collecting chamber and the third flow channel (23).

8. The electric drive assembly for a vehicle according to claim 7, characterized in that: Also includes: A driving pump (21), the driving pump (21) is in communication with the oil collecting device (24) and is suitable for driving the cooling medium in the third flow channel (23) to flow.

9. 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 suitable for being electrically connected to a communication module and supplying power to the communication module.

10. A vehicle, characterized in that: An electric drive assembly comprising any one of claims 1-9.

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