Motor shell, motor and vehicle

Abstract

The embodiment of the utility model provides a motor shell, a motor and a vehicle. The motor shell comprises a body part, a pumping device, a filtering device and a cooling device. The body part is cylindrical and forms a containing space for containing the motor in an enclosing mode, and meanwhile the motor is supported and protected. The pumping device is located on the body part and used for providing power for fluid transportation. The filtering device is located on the body part and used for filtering impurities in the fluid, and therefore abrasion and damage of the impurities to parts are reduced. The cooling device is located on the body part and comprises a cooling medium, the cooling medium is used for exchanging heat with fluid, and the fluid enters the motor again to cool the motor after being cooled. Wherein the filtering device, the pumping device and the cooling device are sequentially distributed along the peripheral side of the body part, so that direct and efficient cooling of motor parts can be realized, and the heat dissipation effect of the motor is greatly improved. Meanwhile, the motor shell is only used for containing the motor and does not need to contain other equipment of the vehicle, and the shell space is saved.

Description

Technical Field

[0001] The present application relates to the field of motor technology, and in particular to a motor housing, a motor, and a vehicle. Background Art

[0002] Currently, vehicle electric axles typically utilize an electric axle and a water-cooled single motor due to limitations in unsprung mass and space. Compared to oil-cooled motors, water-cooled motors offer slightly inferior heat dissipation, limiting further efficiency improvements. Using an oil-cooled single motor places high demands on housing integration and design capabilities, requiring the oil pump, oil filter, and oil cooler to be integrated into the motor housing. This integration requires a compact motor structure that meets the vehicle's unsprung mass and chassis installation space requirements, and places high demands on oil circuit design. Utility Model Content

[0003] The embodiments of the present application provide a motor housing, a motor, and a vehicle, aiming to improve the compactness of the housing arrangement.

[0004] An embodiment of the first aspect of the present application provides a motor housing, which includes: a main body, which is cylindrical and encloses a storage space for accommodating the motor; a pumping device, located in the main body, and the pumping device is used to provide power for fluid transportation; a filtering device, located in the main body, and the filtering device is used to filter impurities in the fluid; a cooling device, located in the main body, and the cooling device includes a cooling medium, and the cooling medium is used to exchange heat with the fluid, wherein the filtering device, the pumping device and the cooling device are distributed in sequence along the circumference of the main body.

[0005] According to any of the aforementioned embodiments of the first aspect of the present application, the cooling device includes a liquid inlet and a liquid outlet, and the motor housing also includes a first pipe, the inlet and the liquid outlet of the first pipe are connected, and the outlet of the first pipe extends to one end of the main body in its axial direction, so that the first pipe is used to output the fluid to the rear end cover of the motor.

[0006] According to any of the aforementioned embodiments of the first aspect of the present application, the first pipe is arranged to extend along the axial direction of the main body.

[0007] According to any of the aforementioned embodiments of the first aspect of the present application, the motor housing further comprises a second pipe, at least a portion of the second pipe extending away from the pumping device in the circumferential direction of the main body, the inlet of the second pipe being connected to the cooling device, and the outlet of the second pipe being used to output the fluid to the motor.

[0008] According to any of the aforementioned embodiments of the first aspect of the present application, the main body portion includes a first end and a second end arranged opposite to each other in the axial direction, the second pipe includes a first sub-segment and a second sub-segment, the first sub-segment extends along the circumference of the main body portion, the second sub-segment extends from the first sub-segment to the second end, a first outlet is provided on the second sub-segment, and a second outlet is provided at an end of the second sub-segment facing away from the first outlet, the first outlet is used to output the fluid to the stator of the motor, and the second outlet is used to output the fluid to the front end cover of the motor.

[0009] According to any of the aforementioned embodiments of the first aspect of the present application, the second sub-section and the filtering device are arranged opposite to each other along the radial direction of the main body.

[0010] According to any of the aforementioned embodiments of the first aspect of the present application, the motor housing further includes a first pipe, the inlet of the first pipe is connected to the liquid outlet, the outlet of the first pipe extends to the first end of the main body in its axial direction, and the outlet of the first pipe and the second outlet are arranged opposite to each other along the axial direction.

[0011] According to any of the aforementioned embodiments of the first aspect of the present application, the first pipe and the second pipe have different pore diameters.

[0012] An embodiment of the second aspect of the present application provides a motor, comprising the motor housing as described above.

[0013] An embodiment of the third aspect of the present application provides a vehicle, comprising the motor as described above.

[0014] The embodiment of the present application provides a motor housing, a motor and a vehicle, wherein the motor housing includes a main body, a pumping device, a filtering device and a cooling device. The main body is cylindrical and encloses a storage space for accommodating the motor, while providing support and protection for the motor. The pumping device is located in the main body, and the pumping device is used to provide power for fluid transportation. The filtering device is located in the main body, and the filtering device is used to filter impurities in the fluid, thereby reducing the wear and damage of the impurities to the components. The cooling device is located in the main body, and the cooling device includes a cooling medium, which is used to exchange heat with the fluid. After the fluid cools down, it enters the motor again to cool it. Among them, the filtering device, the pumping device and the cooling device are distributed in sequence along the circumference of the main body, effectively utilizing the internal space of the motor housing, and can achieve direct and efficient cooling of the motor components, greatly improving the heat dissipation effect of the motor, thereby further improving the efficiency of the motor. At the same time, the motor housing is only used to accommodate the motor, and there is no need to accommodate other equipment in the vehicle, saving housing space and making the arrangement of the filtering device, pumping device and cooling device more compact. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Other features, objects and advantages of the present application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings, in which the same or similar reference numerals represent the same or similar features.

[0016] Figure 1 This is one of the structural schematic diagrams of a motor housing provided in an embodiment of the present application;

[0017] Figure 2 This is the second structural schematic diagram of a motor housing provided in an embodiment of the present application;

[0018] Figure 3 This is the third structural schematic diagram of a motor housing provided in an embodiment of the present application.

[0019] Description of reference numerals:

[0020] 100 - Main body; 101 - First pipe; 102 - Second pipe; 102a - First subsection; 102b - Second subsection; 103 - First outlet; 104 - Second outlet; 105 - Third pipe; 105a - Third interface; 106 - First end; 107 - Second end; 108 - Bolt; 109 - Accommodation space;

[0021] 200-Pumping device;

[0022] 300- filtration device;

[0023] 400-cooling device; 401-liquid inlet; 402-liquid outlet. DETAILED DESCRIPTION

[0024] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the detailed description below, many specific details are set forth in order to provide a comprehensive understanding of the present application. However, it will be apparent to those skilled in the art that the present application can be implemented without some of these specific details. The following description of the embodiments is merely intended to provide a better understanding of the present application by illustrating examples of the present application. In the accompanying drawings and the following description, at least some of the well-known structures and technologies are not shown in order to avoid unnecessary ambiguity in the present application; and, for clarity, the sizes of some structures may be exaggerated. In addition, the features, structures, or characteristics described below may be combined in any suitable manner in one or more embodiments.

[0025] In the description of this application, it should be noted that, unless otherwise specified, "plurality" means more than two; terms such as "upper," "lower," "left," "right," "inner," and "outer" indicating directions or positional relationships are merely for the purpose of facilitating the description of this application and simplifying the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation, and therefore should not be construed as limiting this application. Furthermore, terms such as "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] The directional words appearing in the following description are all directions shown in the figures, and do not limit the specific structure of the embodiments of this application. In the description of this application, it should also be noted that, unless otherwise clearly specified and limited, the terms "installation" and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be directly connected or indirectly connected. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to the specific circumstances.

[0027] In the existing technology, the motor is usually arranged in the same housing as the reduction gearbox, and the oil pump, oil filter, and oil cooler are then integrated into the housing. This occupies a large space, has long fluid pipelines, places high demands on oil circuit design, has low cooling efficiency, and is difficult to meet the current vehicle requirements for unsprung mass and chassis installation space requirements.

[0028] To solve the above problems, the present application provides a compact oil-cooled motor housing, which is only used to arrange the motor, and integrates the oil pump, oil filter, and oil cooler on the motor housing. The corresponding oil circuit is designed to directly and efficiently cool the motor stator core and the front and rear covers, further improving the motor efficiency. Figures 1 to 3 The motor rotor of the embodiment of the present application is described in detail.

[0029] Figure 1 This is one of the structural diagrams of a motor housing provided in an embodiment of the present application. Figure 2 This is the second structural diagram of a motor housing provided in an embodiment of the present application. Figure 3 This is the third structural schematic diagram of a motor housing provided in an embodiment of the present application.

[0030] See also Figures 1 to 3 , an embodiment of the first aspect of the present application provides a motor housing, the motor housing including a main body 100, a pumping device 200, a filtering device 300 and a cooling device 400. The main body 100 is cylindrical and encloses a receiving space 109 for accommodating the motor. The pumping device 200 is located in the main body 100, and the pumping device 200 is used to provide power for fluid transportation. The filtering device 300 is located in the main body 100, and the filtering device 300 is used to filter impurities in the fluid. The cooling device 400 is located in the main body 100, and the cooling device 400 includes a cooling medium, and the cooling medium is used to exchange heat with the fluid, wherein the filtering device 300, the pumping device 200 and the cooling device 400 are distributed in sequence along the circumference of the main body 100.

[0031] An embodiment of the present application provides a motor housing, which includes a main body 100, a pumping device 200, a filtering device 300 and a cooling device 400. The main body 100 is cylindrical and encloses a storage space 109 for accommodating the motor, while providing support and protection for the motor. The pumping device 200 is located in the main body 100, and the pumping device 200 is used to provide power for fluid transportation. The filtering device 300 is located in the main body 100, and the filtering device 300 is used to filter impurities in the fluid, thereby reducing the wear and damage of impurities to parts. The cooling device 400 is located in the main body 100, and the cooling device 400 includes a cooling medium, which is used to exchange heat with the fluid. After the fluid cools down, it enters the motor again to cool it. Among them, the filtering device 300, the pumping device 200 and the cooling device 400 are distributed in sequence along the circumference of the main body 100, and the fluid after filtering out impurities can be sent to the cooling device through the pumping device for cooling and reuse. The filter device 300, pumping device 200, and cooling device 400 are arranged in the direction of flow, resulting in a simple layout. This allows for direct and efficient cooling of motor components, significantly improving motor heat dissipation and thus further enhancing motor efficiency. Furthermore, the motor housing is designed to accommodate only the motor, eliminating the need for other vehicle equipment. This saves housing space and allows for a more compact arrangement of the filter device 300, pumping device 200, and cooling device 400.

[0032] Optionally, the fluid may be lubricating oil, which can reduce direct contact between motor component surfaces, thereby reducing friction and wear. This helps extend the life of the motor and improves motor overheating, thereby increasing its operating efficiency.

[0033] Optionally, the pumping device 200 may be an oil pump, which may provide power to deliver lubricating oil to a location requiring lubrication.

[0034] Optionally, the pumping device 200 is located on the outer side of the main body 100 and is assembled with the main body 100 by bolts 108 to ensure the stability of the pumping device 200.

[0035] Optionally, the filtering device 300 may be an oil filter, which may filter out impurities and pollutants in the lubricating oil, thereby improving the cleanliness of the lubricating oil and reducing the possibility of contamination of the internal components of the motor.

[0036] Optionally, the oil filter may be located at the lowest point of the motor fluid level, for example, the oil filter may be located on the pipeline between the motor oil pan and the oil tank, so that the lubricating oil entering the motor housing is clean.

[0037] Optionally, the filter device 300 and the main body 100 are assembled by threads, which is convenient for installation and disassembly.

[0038] Optionally, the cooling device 400 may be an oil cooler, which reduces the oil temperature by transferring the heat of the lubricating oil or hydraulic oil to the cooling medium, thereby helping to improve the problems of lubrication failure and equipment damage caused by excessively high oil temperature and extending the service life of the equipment.

[0039] Optionally, the cooling device 400 is assembled on the outer side of the main body 100 by means of bolts 108. Optionally, there may be four bolts 108, which can better fix the cooling device 400 and ensure the stability of the position of the cooling device 400.

[0040] In some optional embodiments, such as Figures 1 to 3 As shown, the cooling device 400 includes a liquid inlet 401 and a liquid outlet 402, and the motor housing also includes a first pipe 101, the inlet of the first pipe 101 and the liquid outlet 402 are connected, and the outlet of the first pipe 101 extends to one end of the main body 100 in its axial direction, so that the first pipe 101 is used to output the fluid to the rear end cover of the motor.

[0041] In these optional embodiments, a first conduit 101 is provided in the motor housing. The first conduit 101 receives fluid cooled by the cooling device 400, allowing the cooled fluid to flow directly through the motor rear end cover and ultimately to the rotor and bearings, thereby more effectively removing heat from the rotor and bearings. This helps maintain the internal temperature of the motor within a suitable range, thereby improving the motor's operating efficiency and lifespan.

[0042] Optionally, the first pipe 101 is used to connect to the rear end cover of the motor, so that the cooled fluid can flow through the rear end cover and eventually be delivered to the rotor and bearings, thereby lubricating the bearings and dissipating heat from the bearings and rotor.

[0043] Optional, such as Figure 1 and Figure 3 As shown, the motor housing also includes a third pipe 105, which extends circumferentially along the main body 100. The pumping device 200 includes a third interface 105a. The inlet of the third pipe 105 is connected to the third interface 105a, and the outlet of the third pipe 105 is connected to the liquid inlet 401. The fluid of the pumping device 200 is transported to the cooling device 400 via the third pipe 105 in a shorter path, thereby improving transportation efficiency.

[0044] Optionally, the liquid inlet 401 and the liquid outlet 402 are sealed with the main body 100 via annular gaskets, thereby improving the problem of fluid leakage from the liquid inlet 401 and the liquid outlet 402 .

[0045] In some optional embodiments, the first pipe 101 is arranged to extend along the axial direction of the main body 100 .

[0046] In these optional embodiments, optionally, the rear end cover of the motor is usually located at one axial end of the motor housing, and the first pipe 101 is extended along the axial direction of the main body 100, so that the cooled fluid can flow directly through the rear end cover of the motor. The first pipe 101 extends in a straight line along the axial direction of the main body 100, not along a curved path, which can reduce the length of the first pipe 101, reduce the heat added by the fluid during the flow process, and improve the heat exchange efficiency.

[0047] In some optional embodiments, the motor housing further includes a second pipe 102, at least a portion of the second pipe 102 extends circumferentially away from the pumping device 200 of the main body 100, an inlet of the second pipe 102 is connected to the cooling device 400, and an outlet of the second pipe 102 is used to output the fluid to the motor.

[0048] In these optional embodiments, at least a portion of the second conduit 102 extends circumferentially around the body 100, away from the pumping device 200. This can streamline the fluid flow path, reduce resistance to fluid flow, and lower the energy consumption of the pumping device 200. The inlet of the second conduit 102 communicates with the cooling device 400, and the outlet of the second conduit 102 is used to output the fluid to the motor. This allows the fluid cooled by the cooling device 400 to be directly transported to the motor, reducing the need for external connecting pipes, improving cooling efficiency, simplifying the installation process, and reducing the risk of leakage.

[0049] In some optional embodiments, the main body 100 includes a first end 106 and a second end 107 arranged opposite to each other along the axial direction, the second pipe 102 includes a first sub-segment 102a and a second sub-segment 102b, the first sub-segment 102a extends along the circumference of the main body 100, the second sub-segment 102b extends from the first sub-segment 102a to the second end 107, a first outlet 103 is provided on the second sub-segment 102b, and a second outlet 104 is provided at an end of the second sub-segment 102b facing away from the first outlet 103, the first outlet 103 is used to output the fluid to the stator of the motor, and the second outlet 104 is used to output the fluid to the front end cover of the motor.

[0050] In these optional embodiments, the second subsegment 102b can extend from the first subsegment 102a to the second end 107, and the second subsegment 102b is provided with multiple outlets. The positions of the first outlet 103 and the second outlet 104 are adapted to the positions of the motor components, making the fluid flow path more rational and improving cooling efficiency. The second subsegment 102b is provided with a first outlet 103, which is used to output the fluid directly to the stator of the motor. The second subsegment 102b is provided with a second outlet 104 at the end facing away from the first outlet 103, which is used to output the fluid to the front end cover of the motor. The cooled fluid can be directly transported to the front end cover located on the axial side of the motor housing, thereby reducing the number of pipes and layout space on the motor housing and improving cooling efficiency.

[0051] Optionally, the first outlet 103 is used to output the fluid directly to the stator of the motor, thereby reducing the heat of the stator and nearby components.

[0052] Optionally, the second outlet 104 is used to output the fluid to the bearing of the front end cover of the motor, so as to lubricate the bearing and dissipate heat for the bearing.

[0053] In some optional embodiments, the second sub-segment 102 b and the filter device 300 are disposed opposite to each other along the radial direction of the main body 100 .

[0054] In these optional embodiments, the second subsection 102b and the filter device 300 are arranged relative to each other along the radial direction of the main body 100 so that after the fluid enters the filter device 300, it can reach the second subsection 102b through a shorter path, thereby improving work efficiency.

[0055] In some optional embodiments, as described above, when the motor housing further includes a first pipe 101, the inlet of the first pipe 101 is connected to the liquid outlet 402, the outlet of the first pipe 101 extends to the first end 106 of the main body 100 in its axial direction, and the outlet of the first pipe 101 and the second outlet 104 are axially arranged opposite to each other.

[0056] In these optional embodiments, the outlet of the first pipe 101 and the second outlet 104 are arranged opposite to each other in the axial direction. For example, the second outlet 104 can be located at the second end 107 of the main body 100 in its axial direction. That is to say, the outlet of the first pipe 101 and the second outlet 104 are located on both sides of the main body 100, so that the fluid can be directly output to the rear end cover and the front end cover located on both sides of the motor housing, respectively, thereby improving the conveying efficiency, and the outlet of the first pipe 101 and the second outlet 104 do not interfere with each other.

[0057] In some optional embodiments, the first pipe 101 and the second pipe 102 have different pore sizes.

[0058] In these optional embodiments, the first pipe 101 and the second pipe 102 have different apertures. By designing the pipes with different apertures, flow distribution is performed to improve heat dissipation efficiency. For example, optionally, the aperture of the second pipe 102 can be larger than the aperture of the first pipe 101 to meet the demand for a larger flow rate for the second pipe 102 to transport the fluid to the motor stator and the front end cover of the motor.

[0059] An embodiment of the second aspect of the present application provides a motor, comprising the motor housing as described above.

[0060] An embodiment of the present application provides a motor, which includes a motor housing, and the motor housing includes a main body 100, a pumping device 200, a filtering device 300 and a cooling device 400. The main body 100 is cylindrical and encloses a storage space 109 for accommodating the motor, while providing support and protection for the motor. The pumping device 200 is located in the main body 100, and the pumping device 200 is used to provide power for fluid transportation. The filtering device 300 is located in the main body 100, and the filtering device 300 is used to filter impurities in the fluid, thereby reducing the wear and damage of impurities to parts. The cooling device 400 is located in the main body 100, and the cooling device 400 includes a cooling medium, which is used to exchange heat with the fluid. After the fluid cools down, it enters the motor again to cool it. Among them, the filtering device 300, the pumping device 200 and the cooling device 400 are distributed in sequence along the circumference of the main body 100, and the fluid after filtering out impurities can be sent to the cooling device through the pumping device for cooling and reuse. The filter device 300, pumping device 200, and cooling device 400 are arranged in the direction of flow, resulting in a simple layout. This allows for direct and efficient cooling of motor components, significantly improving motor heat dissipation and thus further enhancing motor efficiency. Furthermore, the motor housing is designed to accommodate only the motor, eliminating the need for other vehicle equipment. This saves housing space and allows for a more compact arrangement of the filter device 300, pumping device 200, and cooling device 400.

[0061] An embodiment of the third aspect of the present application provides a vehicle, comprising the motor as described above.

[0062] An embodiment of the present application provides a vehicle, which includes a motor, which includes a motor housing, and the motor housing includes a main body 100, a pumping device 200, a filter device 300, and a cooling device 400. The main body 100 is cylindrical and encloses a storage space 109 for accommodating the motor, while providing support and protection for the motor. The pumping device 200 is located in the main body 100, and the pumping device 200 is used to provide power for fluid transportation. The filter device 300 is located in the main body 100, and the filter device 300 is used to filter impurities in the fluid, thereby reducing the wear and damage of impurities to parts. The cooling device 400 is located in the main body 100, and the cooling device 400 includes a cooling medium, which is used to exchange heat with the fluid. After the fluid cools down, it enters the motor again to cool it. Among them, the filter device 300, the pumping device 200, and the cooling device 400 are distributed in sequence along the circumference of the main body 100. The fluid after filtering impurities can be sent to the cooling device through the pumping device and cooled again for use. The filter device 300, pumping device 200, and cooling device 400 are arranged in the direction of flow, resulting in a simple layout. This allows for direct and efficient cooling of motor components, significantly improving motor heat dissipation and thus further enhancing motor efficiency. Furthermore, the motor housing is designed to accommodate only the motor, eliminating the need for other vehicle equipment. This saves housing space and allows for a more compact arrangement of the filter device 300, pumping device 200, and cooling device 400.

[0063] Although the present application has been described with reference to preferred embodiments, various modifications may be made thereto and components may be substituted with equivalents without departing from the scope of the present application. In particular, the various technical features described in the various embodiments may be combined in any manner as long as there are no structural conflicts. The present application is not limited to the specific embodiments disclosed herein, but encompasses all technical solutions within the scope of the claims.

Claims

1. A motor housing, characterized in that: The motor housing comprises: The main body is cylindrical and encloses a space for accommodating the motor; A pumping device, located in the main body, and used to provide power for fluid transportation; A filter device is located in the main body and is used to filter impurities in the fluid; A cooling device is located in the main body, and the cooling device includes a cooling medium, and the cooling medium is used to perform heat exchange with the fluid. Wherein, the filtering device, the pumping device and the cooling device are distributed in sequence along the circumference of the main body.

2. The motor housing according to claim 1, characterized in that The cooling device includes a liquid inlet and a liquid outlet, and the motor housing also includes a first pipe, the inlet of the first pipe is connected to the liquid outlet, and the outlet of the first pipe extends to one end of the main body in its axial direction, so that the first pipe is used to output the fluid to the rear end cover of the motor.

3. The motor housing according to claim 2, characterized in that The first pipe is extended along the axial direction of the main body.

4. The motor housing according to claim 1, wherein The motor housing further includes a second pipe, at least a portion of which extends away from the pumping device in the circumferential direction of the main body, an inlet of the second pipe is connected to the cooling device, and an outlet of the second pipe is used to output the fluid to the motor.

5. The motor housing according to claim 4, characterized in that The main body portion includes a first end and a second end that are oppositely arranged in the axial direction, and the second pipe includes a first sub-segment and a second sub-segment, the first sub-segment extends along the circumference of the main body portion, and the second sub-segment extends from the first sub-segment to the second end, a first outlet is provided on the second sub-segment, and a second outlet is provided at an end of the second sub-segment facing away from the first outlet, the first outlet is used to output the fluid to the stator of the motor, and the second outlet is used to output the fluid to the front end cover of the motor.

6. The motor housing according to claim 5, characterized in that The second sub-section and the filter device are arranged opposite to each other along the radial direction of the main body.

7. The motor housing according to claim 5, characterized in that The motor housing further includes a first pipe, the inlet of the first pipe is connected to the liquid outlet, the outlet of the first pipe extends to the first end of the main body in its axial direction, and the outlet of the first pipe and the second outlet are arranged opposite to each other along the axial direction.

8. The motor housing according to claim 7, characterized in that The first pipe and the second pipe have different apertures.

9. A motor, characterized in that: The motor housing comprises the motor housing according to any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the motor as claimed in claim 9.

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