Shell, electric drive assembly and vehicle

Abstract

The utility model relates to a shell, an electric drive assembly and a vehicle. The connecting part is arranged on the shell, and the shell is connected with an external assembly through the connecting part; the reinforcing structure is connected with the outer side wall of the connecting part and the shell; the pipeline is arranged on the shell and connected with the reinforcing structure in a penetrating mode. According to the technical scheme, the integration level of the shell is improved.

Description

Technical Field

[0001] The present application relates to the technical field of vehicles, and particularly to a housing, an electric drive assembly and a vehicle. Background Art

[0002] Currently, modern electric drive assemblies are designed to be more compact, with a more compact overall layout. To save layout space, it is desired to modularly integrate several components. Generally, the mounts of the electric drive assembly and the oil cooling device are separately installed components. The mount bracket only serves to connect to the vehicle chassis mount and support the electric drive assembly, and the oil cooling device is also separately installed, without functional integration, which brings difficulties to the compact design of the electric drive assembly.

[0003] However, in the related documents, the positions of the drive assembly pipelines and connection holes are separated, resulting in a large occupied space for the components and reducing the integration degree of the device. Utility Model Content

[0004] The embodiments of the present application provide a housing, an electric drive assembly and a vehicle, which improve the integration degree of the housing to at least partially solve the above technical problems.

[0005] To achieve the above object, according to the first aspect of the present application, there is provided a housing, including: an outer shell; a connection part disposed on the outer shell, the connection part having a connection hole, and the housing is connected to an external component through the connection hole; a strengthening structure connected to the outer side wall of the connection part and the outer shell; a pipeline disposed in the outer shell, and the pipeline is connected to the strengthening structure through penetration.

[0006] Optionally, the housing includes a plurality of strengthening structures, and the plurality of strengthening structures are annularly arranged along the circumferential direction of the connection part.

[0007] Optionally, the pipeline is connected to at least one strengthening structure through penetration.

[0008] Optionally, the housing further includes a cooler connected to the outer shell, the cooler is disposed close to the pipeline and the connection part, the cooler is communicated with the pipeline, and cools the fluid in the pipeline.

[0009] Optionally, the cooler includes a cooling cavity, a first liquid inlet and a first liquid outlet respectively communicated with the cooling cavity, and the cooling cavity is used for accommodating coolant.

[0010] Optionally, the pipeline includes a water channel and / or an oil channel.

[0011] Optionally, the pipeline includes a water pipeline and an oil pipeline, at least one of the water pipeline and the oil pipeline extends along a first direction and is connected to the strengthening structure through penetration, and the water pipeline and the oil pipeline are connected to the cooler.

[0012] Optionally, the first direction and the extension direction of the connecting portion have an angle.

[0013] Optionally, the shell includes a plurality of connection parts, and the plurality of connection parts are arranged at intervals on the outer shell, and an outer side wall of at least one connection part is connected to the outer shell via a reinforcement structure.

[0014] Optionally, the connecting portion has at least two connecting holes, and at least the two connecting holes have different inner diameters.

[0015] Optionally, the housing includes: a reducer front housing; a reducer rear housing, which is arranged on one side of the reducer front housing, and the reducer rear housing and the reducer front housing cooperate to form a first accommodating chamber, and the first accommodating chamber is used to accommodate the reducer; a motor housing, which is arranged on the other side of the reducer front housing; a motor end cover, which is arranged at one end of the motor housing away from the reducer front housing, and the motor housing and the motor end cover cooperate to form a second accommodating chamber, and the second accommodating chamber is used to accommodate the motor; wherein the connecting portion is arranged on at least one of the reducer front housing, the reducer front housing, the motor housing and the motor end cover.

[0016] Optionally, the connecting hole comprises a threaded hole.

[0017] Optionally, the material of the housing comprises aluminum or steel.

[0018] According to a second aspect of the present application, a suspension system is provided, comprising the housing as described above.

[0019] According to a third aspect of the present application, a vehicle is also provided, comprising the suspension system as described above.

[0020] The shell of the embodiment of the present application includes: a shell; a connecting part, which is arranged on the shell, and the connecting part has a connecting hole, and the shell is connected to the external component through the connecting hole; a reinforcing structure, which is arranged between the shell and the outer wall of the connecting part; a pipeline, which is arranged on the shell, and the pipeline is connected to the reinforcing structure through penetration. Through the above technical solution, the reinforcing structure is arranged between the connecting part and the shell, which can improve the structural strength of the connecting hole, increase the safety and durability of the entire device, and at the same time, the pipeline is connected to the reinforcing structure through penetration, so that the space occupied by the component is small, and the integration of the device is improved.

[0021] Other features and advantages of the present application will be described in detail in the subsequent detailed description. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application, and those skilled in the art can obtain other drawings based on these drawings without creative work.

[0023] To more fully understand the present application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, where the same reference numerals in the following description denote the same parts.

[0024] Figure 1 is a schematic diagram of the overall structure of the housing provided in an exemplary embodiment of the present disclosure;

[0025] Figure 2 is a side view schematic diagram of the housing provided in an exemplary embodiment of the present disclosure;

[0026] Figure 3 is a cross-sectional schematic diagram of a partial structure of the housing provided in an exemplary embodiment of the present disclosure;

[0027] Figure 4 is a schematic diagram of a partial structure of the housing provided in an exemplary embodiment of the present disclosure;

[0028] Figure 5 is a front view of a partial structure of the housing provided in an exemplary embodiment of the present disclosure.

[0029] Description of reference numerals:

[0030] 10. Outer shell; 11. Front housing of the reducer; 12. Rear housing of the reducer; 13. Motor housing; 14. Motor end cover;

[0031] 20. Connecting portion; 21. Connecting hole;

[0032] 30. Reinforcing structure;

[0033] 40. Pipeline; 41. Water liquid pipeline; 42. Oil outlet pipeline; 43. Oil inlet pipeline;

[0034] 50. Cooler; 51. First liquid inlet; 52. First liquid outlet;

[0035] X. First direction. Specific embodiments

[0036] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative efforts shall fall within the protection scope of the present application.

[0037] As Figures 1 to 5As shown, according to the first aspect of the present application, a housing is provided, including: an outer shell 10; a connecting portion 20 disposed on the outer shell 10, and the housing is connected to an external component through the connecting portion 20; a strengthening structure 30 connected to the outer side wall of the connecting portion 20 and the outer shell 10; a pipeline 40 disposed in the outer shell 10, and the pipeline 40 is connected to the strengthening structure 30 in a penetrating manner.

[0038] Through the above technical solution, by providing the strengthening structure 30 between the connecting portion 20 and the outer shell 10, the structural strength of the connecting hole 21 can be improved, enhancing the safety and durability of the entire device. At the same time, by connecting the pipeline 40 to the strengthening structure 30 in a penetrating manner, the occupied space of the components is reduced, improving the integration degree of the device.

[0039] Among them, the housing can be the housing of a speed reducer or the housing of a motor.

[0040] In the present application, the connecting portion 20 is specifically a cylindrical structure, and one end of the strengthening structure 30 is connected to the outer side wall of the cylindrical structure.

[0041] In the present application, the penetrating connection means that at least a part of the structure of the pipeline 40 passes through the strengthening structure 30.

[0042] In the present application, the pipeline 40 can be connected to a cooler 50 or can be the pipeline 40 of the internal oil passage of the housing.

[0043] In an embodiment, the housing includes a plurality of strengthening structures 30, and the plurality of strengthening structures 30 are annularly arranged along the circumferential direction of the connecting portion 20. With this arrangement, the structural strength of the connecting portion 20 and the connecting hole 21 is improved as much as possible. The strengthening structure 30 enhances the load-bearing capacity of the overall structure by increasing the connection surface strength of the structural members. In the case where the overhanging surface or span of the structure is too large, the strengthening structure 30 can effectively share the load and prevent the structure from being damaged due to excessive load. At the same time, without increasing the wall thickness of the product, the strengthening structure 30 increases the bending stiffness of the structure by changing the cross-sectional shape of the structure (such as forming a cross-section similar to an "I" shape), so that the product is not easily deformed when subjected to external forces.

[0044] By reasonably using the strengthening structure 30, the amount of material used can be reduced without reducing the structural strength, thereby reducing the weight of the product and lowering the production cost. The application of the strengthening structure 30 makes the structural design more reasonable, improves the material utilization rate, and helps the enterprise improve economic benefits. The strengthening structure 30 can overcome the problem of uneven stress caused by differences in the wall thickness of the product and prevent the product from being distorted and deformed when subjected to external forces.

[0045] In an embodiment, the pipeline 40 is connected to at least one strengthening structure 30 in a penetrating manner. This can improve the integration degree between components to reduce the overall volume of the device.

[0046] In one embodiment, the housing further includes a cooler 50 connected to the outer shell 10 . The cooler 50 is disposed close to the pipeline 40 and the connecting portion 20 . The cooler 50 is used to communicate with the pipeline 40 and cool the fluid in the pipeline 40 .

[0047] In the present application, the cooler 50 is specifically an oil cooler, which is an oil cooling device commonly used in hydraulic systems and lubrication systems. The device can be used to achieve heat exchange between two fluid media with a certain temperature difference, thereby achieving the purpose of reducing the oil temperature and ensuring the normal operation of the system. For electric vehicles, the oil cooler is mainly used to cool the oil in the motor, battery pack or other hydraulic system to prevent performance degradation or damage caused by excessive oil temperature. On high-power reinforced motors, due to the large heat load, an oil cooler must be installed to keep the oil temperature within the normal working range. This helps to maintain the stability and reliability of components such as motors and battery packs. The oil cooler 50 can be divided into an air-cooled oil cooler 50 and a water-cooled oil cooler 50 according to the different media for heat exchange. The air-cooled oil cooler 50 uses a fan to blow air over the surface of the oil cooler to dissipate heat; while the water-cooled oil cooler 50 uses cooling water to exchange heat with the oil to reduce the oil temperature. In the present application, the cooler 50 is specifically an oil cooler.

[0048] In one embodiment, the cooler 50 includes a cooling chamber and a first liquid inlet 51 and a first liquid outlet 52 respectively connected to the cooling chamber, and the cooling chamber is used to contain a coolant. By setting the above structure, the coolant is easy to flow in the cooler 50, so that the liquid in the pipeline 40 can be cooled.

[0049] In one embodiment, the pipeline 40 includes a water channel and / or an oil channel. In the present application, the fluid in the pipeline 40 is specifically engine oil.

[0050] In one embodiment, the pipeline 40 includes a water pipeline 41 and an oil pipeline, at least one of the water pipeline 41 and the oil pipeline extends along a first direction and is connected to the reinforcing structure 30, and the water pipeline 41 and the oil pipeline are connected to the cooler 50. The first direction and the extending direction of the connecting portion 20 form an angle. In this way, the reinforcing structure 30 and the pipeline 40 are arranged crosswise, the peripheral strength of the connecting hole 21 is increased, and the arrangement space can be reduced at the same time, the structure is more compact, and space is saved for the whole vehicle design.

[0051] The oil pipeline includes an oil outlet pipeline 42 and an oil inlet pipeline 43, so as to ensure the normal operation of the device.

[0052] In the present application, the angle between the extension direction of the connection portion 20 and the first direction is a right angle, and the extension direction is from the side of the motor housing 13 away from the cooler 50 toward the side close to the cooler 50 .

[0053] Integrated design can reduce the number of required components, thus directly reducing material costs and manufacturing costs. For example, the "big three electrics" integrated motor, electric control, and reducer three-in-one system in new energy vehicles significantly reduces the length of the three-phase wires connecting the controller to the motor, reducing the wiring harness cost. When an integrated product is provided by a single supplier, optimized design can be carried out at the initial stage to achieve the optimal cost of the system. This optimized design is not limited to the components themselves, but also includes the layout and interface design of the entire system, thereby further reducing costs. At the same time, integrated design reduces losses during energy transmission and conversion, improving the overall efficiency of the system. For example, the integration of the big three electrics in the electrical aspect can improve electromagnetic compatibility performance, thus enhancing the stability and reliability of the system.

[0054] Moreover, integrated design makes the system more compact, reducing the occupied space. This is particularly important for automotive design because the limited interior space of a vehicle needs to accommodate more and more equipment and systems. For example, the eight-in-one electric drive system in new energy vehicles has a higher integration level and a smaller volume, providing more flexibility for the overall vehicle design. Integrated design helps to optimize the interior layout, enabling various systems and equipment to be more reasonably distributed in the vehicle interior space. This can not only improve the comfort of driving and riding, but also enhance the safety and stability of the entire vehicle.

[0055] In one embodiment, the housing includes a plurality of connecting portions 20, the plurality of connecting portions 20 are arranged at intervals on the outer housing 10, and the outer side wall of at least one connecting portion 20 is connected to the outer housing 10 through a reinforcing structure 30. With this arrangement, by using the plurality of connecting portions 20 to adapt to multi-vehicle suspensions, the compatibility of the housing is improved, and at the same time, it is easy to install, improving the installation efficiency of the housing.

[0056] In one embodiment, the connecting portion 20 has at least two connecting holes 21, and the inner diameters of at least two connecting holes 21 are different. With this arrangement, it can meet the installation requirements of different models of vehicle frames, thereby improving the applicability and application range of the housing.

[0057] In one embodiment, the housing 10 includes: a front reducer housing 11; a rear reducer housing 12 disposed on one side of the front reducer housing 11. The rear reducer housing 12 and the front reducer housing 11 cooperate to form a first accommodation cavity for accommodating the reducer; a motor housing 13 disposed on the other side of the front reducer housing 11; a motor end cover 14 covering one end of the motor housing 13 away from the front reducer housing 11. The motor housing 13 and the motor end cover 14 cooperate to form a second accommodation cavity for accommodating the motor. Wherein, a connecting portion 20 is provided on at least one of the front reducer housing 11, the front reducer housing 11, the motor housing 13 and / or the motor end cover 14. The tram reducer plays a crucial role in electric vehicles. The drive motor of an electric vehicle usually rotates at a high speed, while the wheels need to be driven at a low speed to maintain a stable driving state. The reducer reduces the high-speed rotation of the motor and converts it into a low-speed rotation suitable for driving the wheels, achieving speed matching between the motor and the wheels. Improve energy utilization efficiency: Since the reducer reduces the rotation speed of the motor, energy loss is reduced, and the energy utilization efficiency of the entire system is improved. By increasing the number and number of teeth of the gear pair, the reducer can significantly increase the output torque, enabling the electric vehicle to better handle working conditions such as uphill and acceleration. The torque output ratio is the motor output multiplied by the reduction ratio, but note that it cannot exceed the rated torque of the reducer. The use of the reducer makes the electric vehicle perform better in situations where high torque output is required, improving the power performance of the whole vehicle.

[0058] At the same time, the reducer can absorb and disperse part of the impact load, reduce the wear on the drive motor, and thus extend its service life. Reduce heat generation: When the motor runs at a high speed, a large amount of heat will be generated. The use of the reducer can reduce the rotation speed of the motor, thereby reducing heat generation, which is beneficial to the stable operation of the motor. Adapt to different driving situations: Some electric vehicles use a multi-speed gearbox, and the reducer is a part of it. This design can provide more speed options to adapt to different driving situations, such as urban roads, highways, etc.

[0059] In one embodiment, the connecting hole 21 includes a threaded hole. Modern threaded hole processing technology, such as milling, can achieve high-precision thread processing. The processing accuracy can reach a very high level, such as 0.01mm, which is particularly important for workpieces that require precise matching. The processing accuracy of the threaded hole can remain stable for a long time, which is particularly important for workpieces that are mass-produced and used for a long time. Compared with traditional processing methods, modern threaded hole processing technology (such as thread milling) can significantly increase the processing speed. The thread milling cutter with a multi-slot design can increase the number of cutting edges, thereby increasing the feed rate and greatly improving the processing efficiency. For large-diameter threaded holes on large parts, the thread milling processing method can avoid complex clamping and balancing problems and improve processing efficiency. Modern processing methods such as thread milling can generate smaller cutting forces, making the cutting surface very smooth, thereby improving the quality of the workpiece. Due to high processing accuracy and good stability, the scrap rate during the threaded hole processing process will be significantly reduced, thereby improving the overall production quality. At the same time, with high processing efficiency and low scrap rate, threaded hole processing can reduce the overall processing cost.

[0060] In one embodiment, the material of the housing 10 includes aluminum or steel. After aluminum is rapidly oxidized, a dense aluminum oxide film is formed on the surface, which can resist further corrosion from air, water and various chemicals. This naturally formed protective layer gives aluminum good corrosion resistance. Steel has high strength and can withstand greater pressure and load. The above materials can meet the use requirements of the housing 10. Of course, the housing 10 can also be made of other metal materials as long as they can meet the use requirements of the housing 10.

[0061] According to a second aspect of the present application, a suspension system is provided, comprising the housing as described above.

[0062] According to a third aspect of the present application, a vehicle is also provided, comprising the suspension system as described above.

[0063] The housing of the embodiment of the present application includes: a housing 10; a connecting portion 20, which is arranged on the housing 10, and the connecting portion 20 has a connecting hole 21, and the housing is connected to an external component through the connecting hole 21; a reinforcing structure 30, which is arranged between the housing 10 and the outer wall of the connecting portion 20; and a pipeline 40, which is arranged on the housing 10, and the pipeline 40 is connected to the reinforcing structure 30. Through the above technical solution, the reinforcing structure 30 is arranged between the connecting portion 20 and the housing 10, which can improve the structural strength of the connecting hole 21, increase the safety and durability of the entire device, and at the same time, the pipeline 40 is connected to the reinforcing structure 30 through the connecting portion 20, so that the space occupied by the component is small, and the integration of the device is improved.

[0064] It should be noted that the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular forms are also intended to include the plural forms. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they specify the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0065] Unless otherwise specifically stated, the relative arrangements of the components and steps, numerical expressions, and values set forth in these embodiments do not limit the scope of the present application. At the same time, it should be understood that, for the sake of convenience of description, the dimensions of the various parts shown in the drawings are not drawn in actual proportional relationships. Technologies, methods, and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the said technologies, methods, and devices should be regarded as part of the authorized specification. In all the examples shown and discussed herein, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, further discussion thereof is not required in subsequent drawings.

[0066] In the description of the present application, it should be understood that the orientation or positional relationships indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal", and "top, bottom" are generally based on the orientation or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description. Without contrary description, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and thus should not be construed as limiting the protection scope of the present application; the orientation words "inside, outside" refer to the inside and outside of the contour of each component itself.

[0067] For ease of description, spatial relative terms, such as "above", "over", "on the upper surface", "upper", etc., may be used herein to describe the spatial positional relationship of one device or feature to other devices or features as shown in the figures. It should be understood that the spatial relative terms are intended to encompass different orientations in use or operation in addition to the orientation depicted in the figures. For example, if the device in the figures is inverted, a device described as "above" or "over" other devices or structures will then be positioned "below" or "under" the other devices or structures. Thus, the exemplary term "above" can include both the orientations of "above" and "below". The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the corresponding explanations for the spatial relative descriptions used herein will be made accordingly.

[0068] In addition, it should be noted that the use of terms such as "first" and "second" to define components is only for the convenience of differentiating the corresponding components. Without further statement, the above terms have no special meaning, and thus should not be construed as limiting the protection scope of the present application.

[0069] The above are only the preferred embodiments of the present application and are not intended to limit the present application. For those skilled in the art, the present application may have various changes and modifications. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present application shall be included within the protection scope of the present application.

Claims

1. A housing, characterized in that, The housing includes: An outer shell; A connecting portion provided on the outer shell, and the housing is connected to an external component through the connecting portion; A strengthening structure connected to the outer side wall of the connecting portion and the outer shell; A pipeline provided in the outer shell, and the pipeline is connected to the strengthening structure in a penetrating manner.

2. The housing according to claim 1, characterized in that, The housing includes a plurality of strengthening structures, and the plurality of strengthening structures are annularly arranged along the circumference of the connecting portion.

3. The housing according to claim 2, characterized in that, The pipeline is connected to at least one of the strengthening structures in a penetrating manner.

4. The housing according to claim 1, wherein, The housing further includes a cooler connected to the outer shell, the cooler is disposed near the pipeline and the connecting portion, the cooler is communicated with the pipeline, and cools the fluid in the pipeline.

5. The housing according to claim 4, wherein The cooler includes a cooling chamber, a first liquid inlet and a first liquid outlet respectively communicated with the cooling chamber, and the cooling chamber is used for accommodating a coolant.

6. The housing according to claim 1, characterized in that, The pipeline includes a water channel and / or an oil channel.

7. The housing according to claim 4, characterized in that, The pipeline includes a water pipeline and an oil pipeline, at least one of the water pipeline and the oil pipeline extends in a first direction and is connected to the strengthening structure in a penetrating manner, and the water pipeline and the oil pipeline are connected to the cooler.

8. The housing according to claim 7, characterized in that The first direction has an included angle with the extending direction of the connecting portion.

9. The housing according to any one of claims 1-8, characterized in that, The housing includes a plurality of connecting portions, the plurality of connecting portions are spaced apart and arranged on the outer shell, and the outer side wall of at least one of the connecting portions is connected to the outer shell through the strengthening structure.

10. The housing according to claim 9, characterized in that, The connecting portion has at least two connecting holes, and the inner diameters of the at least two connecting holes are different.

11. The housing according to claim 1, characterized in that, The outer shell includes: A front housing of a speed reducer; A rear housing of a speed reducer provided on one side of the front housing of the speed reducer, and the rear housing of the speed reducer and the front housing of the speed reducer cooperate to form a first accommodation cavity for accommodating a speed reducer; A motor housing provided on the other side of the front housing of the speed reducer; A motor end cover covering one end of the motor housing away from the front housing of the speed reducer, and the motor housing and the motor end cover cooperate to form a second accommodation cavity for accommodating a motor; Wherein, the connecting portion is provided on at least one of the front housing of the speed reducer, the front housing of the speed reducer, the motor housing and the motor end cover.

12. The housing according to claim 10, wherein The connecting hole includes a threaded hole.

13. The housing according to claim 1, characterized in that, The material of the outer shell includes aluminum or steel.

14. An electric drive assembly, characterized in that, It includes the housing according to any one of claims 1-13.

15. A vehicle, characterized in that, It includes the electric drive assembly according to claim 14.

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