Electric drive assembly and maneuvering equipment

Abstract

The utility model provides an electric drive assembly and maneuvering equipment, the electric drive assembly comprises a motor structure, the motor structure comprises a gear assembly and a motor shell, the motor shell is provided with an oil pan and a first oil storage cavity, the first oil storage cavity is arranged above the oil pan, and the first oil storage cavity is configured to be used for collecting lubricating oil splashed when the gear assembly rotates; the speed reducer structure comprises a speed reducer shell and a valve body part, the speed reducer shell is provided with a second oil storage cavity communicated with the first oil storage cavity, the second oil storage cavity and / or the first oil storage cavity are / is provided with an oil outlet hole, the oil outlet hole is communicated with the oil pan, and the valve body part is connected with the oil outlet hole. The liquid level height of lubricating oil can be dynamically adjusted according to working conditions, it is guaranteed that the oil stirring amount is small, and the economical efficiency of the whole vehicle can be effectively improved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electric drive, in particular to an electric drive assembly and a motorized device. BACKGROUND

[0002] As a core component of new energy vehicles, the performance and operation reliability of the electric drive system is extremely important; the traditional electric drive system includes a motor assembly, a reducer assembly and a controller assembly.

[0003] In the related art, the lubricating oil quantity in the electric drive system is a fixed value, but the operating conditions of the electric drive system are variable, so there is an urgent need for an electric drive assembly that can ensure that the lubricating oil can cover the oil suction port under different operating conditions. CONTENT OF THE INVENTION

[0004] The purpose of the present application is to provide an electric drive assembly and a motorized device, which can dynamically adjust the lubricating oil liquid level according to the operating conditions, ensure that it is in a state with less oil stirring quantity, and effectively improve the economy of the vehicle.

[0005] In the first aspect, the embodiments of the present application provide an electric drive assembly, comprising: a motor structure comprising a gear assembly and a motor housing, the motor housing being provided with an oil pan and a first oil storage cavity, the first oil storage cavity being arranged above the oil pan, and the first oil storage cavity being configured to collect the splashed lubricating oil when the gear assembly rotates; a reducer structure comprising a reducer housing and a valve body, the reducer housing being provided with a second oil storage cavity in communication with the first oil storage cavity, the second oil storage cavity and / or the first oil storage cavity being provided with an oil outlet hole, the oil outlet hole being in communication with the oil pan, and the valve body being connected to the oil outlet hole.

[0006] In the above implementation process, the first oil storage cavity is arranged on the motor housing, the second oil storage cavity in communication with the first oil storage cavity is arranged on the reducer housing, and the oil outlet hole of the second oil storage cavity is controlled by the valve body. When the motorized device is in different operating conditions, the opening or closing of the valve body can be controlled to determine whether the lubricating oil in the first oil storage cavity and the second oil storage cavity enters the oil pan, thereby dynamically adjusting the lubricating oil liquid level in the oil pan, ensuring that it is in a state with less oil stirring quantity, and effectively improving the economy of the vehicle.

[0007] In some embodiments, the first oil storage cavity is provided with an opening on the side facing the gear assembly, and the opening is configured to allow the splashed lubricating oil to enter the first oil storage cavity.

[0008] In the implementation process, when the electric drive assembly is running, the lubricating oil splashes under the rotation of the gear assembly, the first oil storage cavity collects the splashed lubricating oil through the opening, and when special working conditions occur, the lubricating oil in the oil pan cannot be pumped out or only a small amount of lubricating oil can be pumped out, the opening of the valve body can be controlled, and the lubricating oil in the first and second oil storage cavities can be supplemented to the oil pan, so that the suction empty phenomenon is avoided, and the continuous and reliable lubricating and cooling system is ensured.

[0009] In some embodiments, the periphery of the second oil storage cavity is fitted with the periphery of the first oil storage cavity, and the oil outlet hole is arranged at the bottom of the second oil storage cavity.

[0010] In the implementation process, the periphery of the second oil storage cavity is fitted with the periphery of the first oil storage cavity, and after the first oil storage cavity collects the splashed lubricating oil, the valve body in the second oil storage cavity can be used to control whether the lubricating oil in the cavity is supplemented to the oil pan, so that the electric drive lubricating oil level during the driving process of the motor vehicle is dynamically adjusted, and the suction empty phenomenon is avoided.

[0011] In some embodiments, the electric drive assembly further comprises a sensor structure connected to the motor housing, and the sensor structure is used to detect lubricating oil information on the motor housing and control the opening or closing of the valve body according to the lubricating oil information.

[0012] In the implementation process, the sensor structure can dynamically adjust the electric drive lubricating oil level during the driving process of the motor vehicle according to the detected lubricating oil information and control the valve body through the lubricating oil information, so that the suction empty phenomenon is avoided.

[0013] In some embodiments, the motor structure further comprises a suction filter, the suction filter is arranged in the oil pan, the bottom of the suction filter is provided with an oil suction port, and the first oil storage cavity is arranged above the suction filter.

[0014] In the implementation process, the suction filter is located in the oil pan, the first oil storage cavity collects the splashed lubricating oil, and the valve body of the second oil storage cavity controls whether the lubricating oil in the cavity is introduced into the oil pan, so that the electric drive lubricating oil level during the driving process of the motor vehicle is dynamically adjusted, and it is ensured that the oil suction port of the suction filter can be immersed in the lubricating oil.

[0015] In some embodiments, the electric drive assembly further comprises an oil pump connected to the motor housing for pumping out the lubricating oil in the suction filter.

[0016] In the implementation process, the oil pump is arranged on the motor housing, and when the oil pump works, the lubricating oil can be driven to circulate in the electric drive assembly, so that the gear assembly is lubricated, and the economy of the whole vehicle is effectively improved.

[0017] In some embodiments, the electric drive assembly further comprises an oil cooler connected to the motor housing for heat exchange of the lubricating oil pumped by the oil pump.

[0018] In the above implementation, the oil cooler is arranged on the motor housing to perform heat exchange on the lubricating oil lubricating the gear assembly, so that the lubricating oil is in an optimal condition, the internal oil stirring loss of the electric drive is reduced, and the electric drive efficiency is improved.

[0019] In some embodiments, the gear assembly comprises a differential gear, an intermediate shaft gear and an input shaft gear, the differential gear is connected to the intermediate shaft gear, the intermediate shaft gear is connected to the input shaft gear, and the first oil storage cavity is used to collect the lubricating oil splashed by at least one of the differential gear, the intermediate shaft gear and the input shaft gear when rotating.

[0020] In the above implementation, the first oil storage cavity collects the lubricating oil splashed by the gear assembly, and under the control of the valve body, the electric drive lubricating oil liquid level during the driving of the motor vehicle can be dynamically adjusted, so that the oil pump can work normally under different working conditions of the vehicle, and the gear assembly is in a state of less oil stirring, thereby effectively improving the economy of the vehicle.

[0021] In some embodiments, the motor housing is configured with a main oil path for providing lubricating oil to the gear assembly, and the sensor structure is connected to the main oil path.

[0022] In a second aspect, the application further provides a motor vehicle comprising the electric drive assembly as described in any one of the above aspects.

[0023] Since the motor vehicle provided in the second aspect comprises the electric drive assembly, the motor vehicle has all the technical effects of the electric drive assembly, which will not be repeated here.

[0024] Other features and advantages of the application will be described in the following description, or can be inferred or determined without doubt from the description, or can be known by implementing the above-mentioned technologies of the application.

[0025] In order to make the above-mentioned purposes, features and advantages of the application more obvious and easy to understand, the following preferred embodiments are specifically described in detail below, and the accompanying drawings are as follows. BRIEF DESCRIPTION OF DRAWINGS

[0026] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings needed to be used in the embodiments of the present application will be briefly introduced as follows. It should be understood that the following drawings only show some embodiments of the present application, and therefore should not be regarded as a limitation on the scope. For those skilled in the art, other related drawings can also be obtained without creative labor on the basis of these drawings.

[0027] Fig. 1 A structural schematic diagram of an electric drive assembly provided by the embodiments of the present application is shown in FIG. 1.

[0028] Fig. 2 A structural schematic diagram of a motor structure of the electric drive assembly provided by the embodiments of the present application is shown in FIG. 2.

[0029] Fig. 3 A structural schematic diagram of a reducer structure of the electric drive assembly provided by the embodiments of the present application is shown in FIG. 3.

[0030] Reference signs

[0031] 10, motor structure; 101, differential gear; 102, intermediate shaft gear; 103, input shaft gear; 104, motor housing; 105, first oil storage cavity; 20, reducer structure; 201, reducer housing; 202, valve body; 203, second oil storage cavity; 30, suction filter; 301, oil suction port; 40, oil cooler. DETAILED DESCRIPTION

[0032] The technical solutions in the embodiments of the present application will be described clearly and completely in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, but not all the embodiments. The components of the embodiments of the present application described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of the present application.

[0033] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not intended to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0034] And, the above-mentioned partial terms, in addition to can be used to express the orientation or position relationship, possibly also used to express other meanings, for example, the term "upper" in some cases can also be used to express a certain dependent relationship or connection relationship. For those of ordinary skill in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0035] In addition, the terms "mounting", "setting", "provided with", "connecting", "connected" should be broadly understood. For example, it can be fixed connection, detachable connection, or integral structure; it can be mechanical connection, or point connection; it can be directly connected, or indirectly connected through an intermediate medium, or the internal connection between two devices, elements or components. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0036] In addition, the terms "first", "second" and the like are mainly used to distinguish different devices, elements or components (the specific type and structure may be the same or different), and are not intended to indicate or imply the relative importance and quantity of the indicated devices, elements or components. Unless otherwise stated, the meaning of "multiple" is two or more.

[0037] Embodiments

[0038] The cooling and lubricating structure of the oil-cooled electric drive assembly of the passenger car mainly includes filter, oil pump, radiator, oil injection pipe and other parts. The lubricating oil quantity of the electric drive assembly is a fixed value. The oil quantity can ensure that the oil suction port of the filter is submerged in the oil under different driving conditions such as level, uphill, downhill, left tilt and right tilt, and the oil pump will not produce suction empty phenomenon, thereby ensuring the continuous and reliable lubricating and cooling system.

[0039] The inventor found in the design process that the electric drive posture of the whole vehicle is different under different working conditions, and the minimum refueling amount covering the oil suction port is also different. Generally, the maximum refueling amount is required when the whole vehicle is in a left or right tilt working condition, and such working condition occurs less frequently. The whole vehicle is in an approximately horizontal posture during normal working conditions, and the refueling amount required to submerge the oil suction port is small. In order to meet the user's normal driving of the electric drive assembly under the less frequent left or right tilt working condition, the main plant has to increase the refueling amount. The increase in the refueling amount will increase the gear oil stirring loss, affect the vehicle's endurance, especially the off-road SUV. For example, the oil filter position is limited by the structure and is arranged on the side of the reducer. When the whole vehicle is in a left tilt working condition, the oil is collected in a large area on the motor side. At this time, 1.5L (example) of refueling amount is required to cover the oil suction port with the liquid level. When the whole vehicle is in a right tilt working condition, the oil is collected in a large area on the side of the reducer. At this time, only 0.7L (example) of refueling amount is required to cover the oil suction port with the liquid level. In addition, due to the limitation of the arrangement space of the whole vehicle, the electric drive Z-direction height needs to be as low as possible. At this time, the distance between the motor stator and the liquid level is close. Too much refueling amount may cause the motor rotor height to be lower than the liquid level height, and the resistance of the high-speed rotating rotor increases significantly, and the power consumption increases.

[0040] In view of this, as shown in Figs. 1-3 The first aspect, the embodiment of the application provides an electric drive assembly, comprising: a motor structure 10, comprising a gear assembly and a motor shell 104, the motor shell 104 is configured with an oil pan and a first oil storage cavity 105, the first oil storage cavity 105 is arranged above the oil pan, and the first oil storage cavity 105 is configured to collect the lubricating oil splashed when the gear assembly rotates; a reducer structure 20, comprising a reducer shell 201 and a valve body 202, the reducer shell 201 is configured with a second oil storage cavity 203 in communication with the first oil storage cavity 105, the second oil storage cavity 203 and / or the first oil storage cavity 105 is configured with an oil outlet hole, the oil outlet hole is in communication with the oil pan, and the valve body 202 is connected to the oil outlet hole.

[0041] For example, the motor shell 104 is configured with an assembly cavity in a predetermined direction, the assembly cavity is configured to assemble the gear assembly, the position and shape of the first oil storage cavity 105 are not limited, as long as the position of the first oil storage cavity 105 is arranged above the oil pan, and the valve body 202 on the second oil storage cavity 203 is in communication, the oil pan can be supplemented with lubricating oil.

[0042] It can be understood that the valve body 202 is an on-off valve, which can be a controllable valve body of an electromagnetic valve, a hydraulic valve or an electric valve. When the on-off valve is opened, the oil in the oil storage cavity enters the oil pan through the on-off valve. When the on-off valve is closed, the oil storage cavity stores part of the oil, the oil in the oil pan decreases, and the liquid level decreases.

[0043] It should be noted that the first oil storage cavity 105 can be combined with the gear assembly oil splashing and the oil injection pipe active oil injection.

[0044] In the above implementation process, the first oil storage cavity 105 is arranged on the motor housing 104, the second oil storage cavity 203 in communication with the first oil storage cavity 105 is arranged on the reducer housing 201, and the oil outlet hole of the second oil storage cavity 203 is controlled by the valve body 202. When the motor vehicle is in different working conditions, the opening or closing of the valve body 202 can be controlled, so that the lubricating oil in the first oil storage cavity 105 and the second oil storage cavity 203 enters the oil pan, thereby realizing dynamic adjustment of the liquid level of the lubricating oil in the oil pan, ensuring that the state of less oil stirring is maintained, and effectively improving the economy of the vehicle.

[0045] As shown in Fig. 2 The first oil storage cavity 105 is configured with an opening on the side facing the gear assembly, and the opening is configured to allow splashed lubricating oil to enter the first oil storage cavity 105. For example, the opening is located above the first oil storage cavity 105, so that after the motor housing 104 and the reducer housing 201 are assembled, a complete cavity is formed above the lubricating oil level of the oil pan, and the oil storage volume is determined by the difference between the maximum oiling amount required under the vehicle working condition and the oiling amount required under the horizontal working condition.

[0046] In the above implementation process, when the electric drive assembly is running, the lubricating oil splashes under the rotation of the gear assembly. The first oil storage cavity 105 is provided with an opening to collect the splashed lubricating oil. When special working conditions occur and the oil in the oil pan cannot be pumped out or only a small amount of lubricating oil can be pumped out, the valve body 202 can be controlled to open, and the lubricating oil in the first oil storage cavity 105 and the second oil storage cavity 203 can be supplemented to the oil pan, so as to avoid the phenomenon of pumping out and ensure the continuous and reliable operation of the lubricating and cooling system.

[0047] In some embodiments, the periphery of the second oil storage cavity 203 is in contact with the periphery of the first oil storage cavity 105, and the oil outlet hole is arranged at the bottom of the second oil storage cavity 203. For example, the shape and size of the first oil storage cavity 105 are consistent with those of the second oil storage cavity 203.

[0048] In the above implementation process, the periphery of the second oil storage cavity 203 is in contact with the first oil storage cavity 105. After the first oil storage cavity 105 collects the splashed lubricating oil, whether the lubricating oil in the cavity is replenished to the oil pan can be controlled by the valve body 202 in the second oil storage cavity 203, so as to dynamically adjust the liquid level of the electric drive lubricating oil during the driving process of the motor vehicle, and avoid the phenomenon of air suction.

[0049] In some embodiments, the electric drive assembly further comprises a sensor structure, which includes but is not limited to an oil pressure sensor, and the oil pressure sensor can also be replaced by an NTC temperature sensor. When the NTC temperature is higher than the target value, the valve body 202 is opened, and when the NTC temperature is lower than the target value, the valve body 202 is closed. The sensor structure is connected to the motor housing 104, and the sensor structure is used to detect the lubricating oil information on the motor housing 104, and control the opening or closing of the valve body 202 according to the lubricating oil information.

[0050] In the above implementation process, the sensor structure can dynamically adjust the liquid level of the electric drive lubricating oil during the driving process of the motor vehicle according to the detected lubricating oil information and control the valve body 202 through the lubricating oil information, so as to avoid the phenomenon of air suction.

[0051] Please refer to Fig. 2 , the motor structure 10 further comprises a suction filter 30, the suction filter 30 is arranged in the oil pan, the bottom of the suction filter 30 is provided with an oil suction port 301, and the first oil storage cavity 105 is arranged above the suction filter 30.

[0052] Working state one:

[0053] The whole vehicle is in a horizontal driving state, the oil covers the oil suction port 301, the oil pump is in a normal pumping state, the switch valve is in a closed state, the motor housing 104 and the reducer housing 201 form a cavity which is open at the top and closed at the bottom. Part of the oil is stirred by the differential gear 101 of the gear assembly and enters the oil storage cavity. At this time, the liquid level is low, and the oil stirring loss is small.

[0054] Working state two:

[0055] When the whole vehicle is in a left-leaning driving state (the speed difference between the left and right wheels exceeds a certain range), the oil gathers on the side of the motor structure 10, and the oil suction port 301 is exposed to the liquid surface. The oil pump is in a suction state, the oil pressure sensor detects that the oil pressure in the oil circuit is lower than the target value, the valve body 202 is in an open state, the oil in the second oil storage cavity 203 returns to the oil pan through the on-off valve, the liquid level rises, the oil suction port 301 is submerged, the oil pump works normally, the oil pressure returns to normal, the on-off valve remains open, and the time T1 is maintained for a period of time (the time can be determined through simulation and related tests and calibration to cover most of the time when the whole vehicle is in a left-leaning driving state). Then the valve body 202 is closed, at this time the cavity starts to store oil, the liquid level decreases, the oil stirring loss of the gear assembly decreases, and if the whole vehicle is still in a left-leaning driving state, the oil pump is in a suction state again, and the valve body 202 is opened again.

[0056] In the above implementation process, the suction filter 30 is located in the oil pan, the first oil storage cavity 105 collects the splashed lubricating oil, and whether the lubricating oil in the cavity is introduced into the oil pan is controlled by the valve body 202 of the second oil storage cavity 203, so that the liquid level of the lubricating oil in the electric drive during driving of the mobile equipment is dynamically adjusted, and it is ensured that the oil suction port 301 of the suction filter 30 can be immersed in the lubricating oil.

[0057] In some embodiments, the electric drive assembly further comprises an oil pump connected to the motor housing 104 for pumping out the lubricating oil in the suction filter 30.

[0058] In the above implementation process, the oil pump is arranged on the motor housing 104, and when the oil pump works, it can drive the lubricating oil to circulate in the electric drive assembly, lubricate the gear assembly, and effectively improve the economy of the whole vehicle.

[0059] In some embodiments, the electric drive assembly further comprises an oil cooler 40 connected to the motor housing 104 for heat exchange of the lubricating oil pumped out by the oil pump.

[0060] In the above implementation process, the oil cooler 40 is arranged on the motor housing 104, and can perform heat exchange on the lubricating oil lubricating the gear assembly, so that the lubricating oil is in the best condition, the internal oil stirring loss of the electric drive is reduced, and the efficiency of the electric drive is improved.

[0061] In some embodiments, the gear assembly comprises a differential gear 101, an intermediate shaft gear 102 and an input shaft gear 103, the differential gear 101 is connected to the intermediate shaft gear 102, the intermediate shaft gear 102 is connected to the input shaft gear 103, and the first oil storage cavity 105 is used to collect the splashed lubricating oil when at least one of the differential gear 101, the intermediate shaft gear 102 and the input shaft gear 103 rotates.

[0062] In the above-mentioned implementation process, the first oil storage cavity 105 collects the lubricating oil splashed by the gear assembly, and under the control of the valve body 202, the electric drive lubricating oil liquid level during the driving of the motor vehicle can be dynamically adjusted, so that the oil pump can work normally under different working conditions of the vehicle, and the gear assembly is in a state of less oil stirring, which can effectively improve the economy of the vehicle.

[0063] In some embodiments, the motor housing 104 is configured with a main oil path for providing lubricating oil to the gear assembly and the reducer, and the sensor structure is connected to the main oil path; for example, the sensor structure can be provided with multiple.

[0064] In a second aspect, the application also provides a motor vehicle comprising the electric drive assembly as described above.

[0065] Since the motor vehicle provided by the second aspect comprises the electric drive assembly, the motor vehicle has all the technical effects of the electric drive assembly, which will not be described here.

[0066] In all embodiments of the present application, "large", "small", "more", "less", "upper", "lower" are relative, and the description of such relative terms will not be described in the embodiments of the present application.

[0067] It should be understood that the "in the present embodiment", "in the present embodiment" or "as an optional embodiment" mentioned throughout the specification means that the specific features, structures or characteristics related to the embodiments are included in at least one embodiment of the present application. Therefore, "in the present embodiment", "in the present embodiment" or "as an optional embodiment" appearing throughout the specification does not necessarily refer to the same embodiment. In addition, these specific features, structures or characteristics can be combined in one or more embodiments in any suitable manner. Those skilled in the art should also know that the embodiments described in the specification are optional embodiments, and the actions and modules involved are not necessarily required by the present application.

[0068] In various embodiments of the present application, it should be understood that the size of the serial number of the above processes does not mean the inevitable sequence of execution, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0069] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed by the present application, which should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. An electric drive assembly, characterized by The electric drive assembly comprises: a motor structure comprising a gear assembly and a motor housing, the motor housing is configured with an oil sump and a first oil storage cavity, the first oil storage cavity is arranged above the oil sump, and the first oil storage cavity is configured to collect the lubricating oil splashed when the gear assembly rotates; a reducer structure comprising a reducer housing and a valve body, the reducer housing is configured with a second oil storage cavity in communication with the first oil storage cavity, the second oil storage cavity and / or the first oil storage cavity is configured with an oil outlet hole in communication with the oil sump, and the valve body is connected to the oil outlet hole.

2. The electric drive assembly of claim 1, wherein, The first oil storage cavity is configured with an opening on the side facing the gear assembly, and the opening is configured to allow the splashed lubricating oil to enter the first oil storage cavity.

3. The electric drive assembly of claim 1, wherein, The periphery of the second oil storage cavity is in contact with the periphery of the first oil storage cavity, and the oil outlet hole is arranged at the bottom of the second oil storage cavity.

4. The electric drive assembly of claim 1, wherein, The electric drive assembly further comprises a sensor structure connected to the motor housing, and the sensor structure is used to detect the lubricating oil information on the motor housing and control the opening or closing of the valve body according to the lubricating oil information.

5. The electric drive assembly of claim 1, wherein, The motor structure further comprises a suction filter, the suction filter is arranged in the oil sump, the bottom of the suction filter is configured with a suction port, and the first oil storage cavity is arranged above the suction filter.

6. The electric drive assembly of claim 5, wherein, The electric drive assembly further comprises an oil pump connected to the motor housing for pumping out the lubricating oil in the suction filter.

7. The electric drive assembly of claim 6, wherein, The electric drive assembly further comprises an oil cooler connected to the motor housing for heat exchange of the lubricating oil pumped out by the oil pump.

8. The electric drive assembly of claim 1, wherein, The gear assembly comprises a differential gear, an intermediate shaft gear and an input shaft gear, the differential gear is connected to the intermediate shaft gear, the intermediate shaft gear is connected to the input shaft gear, and the first oil storage cavity is used to collect the lubricating oil splashed when at least one of the differential gear, the intermediate shaft gear and the input shaft gear rotates.

9. The electric drive assembly of claim 4, wherein, The motor housing is configured with a main oil circuit for providing lubricating oil to the gear assembly, and the sensor structure is connected to the main oil circuit.

10. A motorized device characterized by, The electric drive assembly comprises any one of claims 1-9. The electric drive assembly comprises any one of claims 1-9.

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