Engine oil management module and vehicle

Abstract

The utility model relates to an engine oil management module and a vehicle, and the engine oil management module comprises a first housing which is integrated with a flow channel; the pump body is arranged on the first shell and communicates with the flow channel; the composite board is attached to the first shell and comprises at least two supporting layers and damping layers which are arranged in a stacked mode, and the damping layers are arranged between the two adjacent supporting layers. When the pump body drives engine oil to flow in the flow channel, vibration generated by the pump body is transmitted to the supporting layer through the first shell, the damping layer is subjected to stretching and shearing deformation along with the attached supporting layer, materials in the damping layer are subjected to dislocation and friction, and therefore part of vibration energy is converted into heat energy to be consumed. Therefore, the strength of the bending waves spread out of the composite board is weakened, the vibration time of the composite board is shortened, and the purpose of noise reduction is achieved.

Description

Technical Field

[0001] This application relates to the field of electronic technology, and in particular to an oil management module and a vehicle. Background Technology

[0002] Typically, the cooling and lubrication channels of an electric drive assembly are integrated inside the drive housing, and gear oil can only be stored inside the drive housing. Meanwhile, components such as the radiator and filter press are externally mounted on the housing, resulting in complex machining and a large weight for the dual electric drive assembly housing. To address this, related technologies utilize a separate oil management module to supply or recover oil to the electric drive assembly, thereby reducing its complexity and size. However, the oil management module suffers from high noise levels during operation. Utility Model Content

[0003] This application provides an oil management module and a vehicle to reduce the noise of the oil management module, thereby at least partially solving the above-mentioned technical problems.

[0004] To achieve the above objectives, according to the first aspect of this application, an oil management module is provided.

[0005] include:

[0006] The first housing has integrated flow channels;

[0007] Pump body, disposed on the first housing and communicating with the flow channel; and

[0008] A composite plate is attached to the first housing. The composite plate includes a support layer and a damping layer stacked together. There are at least two support layers, and the damping layer is disposed between two adjacent support layers.

[0009] Optionally, the first housing is made of plastic.

[0010] Optionally, the plastic part is a polyamide resin structural part.

[0011] Optionally, the material density of the plastic part is 1.30 g / cm³. 3 -1.40g / cm 3 .

[0012] Optionally, the composite plate is fixedly connected to the first housing by fasteners; and / or, the composite plate is bonded to the first housing.

[0013] Optionally, the total thickness of the composite plate is 1.5 mm to 2.1 mm.

[0014] Optionally, the thickness of a single support layer is 0.7 mm to 1 mm.

[0015] Optionally, the thickness of a single damping layer is 0.04 mm to 0.1 mm.

[0016] Optionally, the support layer is a metal layer.

[0017] Optionally, the metal layer includes at least one of an aluminum alloy layer, a stainless steel layer, a galvanized sheet, and a magnesium-aluminum alloy layer.

[0018] Optionally, the damping layer includes at least one of a rubber-based damping layer, a plastic-based damping layer, and a foamed damping layer.

[0019] Optionally, the damping layer is honeycomb, wavy, or sawtooth-shaped.

[0020] Optionally, the oil management module also includes a radiator, which is disposed on the first housing and connected to the flow channel.

[0021] Optionally, the first housing is provided with a cavity, which is in communication with the flow channel.

[0022] According to a second aspect of this application, a vehicle is provided, including an electric drive assembly and the aforementioned oil management module, wherein the oil management module is connected to the electric drive assembly and is used to supply oil to or recover oil from the electric drive assembly.

[0023] Optionally, the electric drive assembly includes a motor, a reducer, and a second housing, wherein the motor is connected to the reducer and is disposed within the second housing.

[0024] In the oil management module of this application embodiment, when the pump body drives the oil to flow in the flow channel, the vibration generated by the pump body is transmitted to the support layer through the first housing. The damping layer undergoes tensile and shear deformation along with the attached support layer, causing the material inside the damping layer to shift and rub, thereby converting some of the vibration energy into heat energy for consumption. In this way, the intensity of the bending wave propagating from the composite plate is weakened, and the vibration time of the composite plate is shortened, thereby achieving the purpose of noise reduction.

[0025] Other features and advantages of this application will be described in detail in the following detailed description section. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] To gain a more complete understanding of this application and its beneficial effects, the following description will be provided in conjunction with the accompanying drawings, wherein the same reference numerals in the following description denote the same parts.

[0028] Figure 1 This is a top view of the oil management module provided in an exemplary embodiment of this application;

[0029] Figure 2 This is a schematic diagram of the main structure of the oil management module provided in an exemplary embodiment of this application;

[0030] Figure 3 This is a schematic diagram showing the connection relationship of each part in the oil management module provided in an exemplary embodiment of this application. The composite plate is omitted in the figure.

[0031] Figure 4 This is a cross-sectional structural diagram of the first housing in the oil management module provided in an exemplary embodiment of this application;

[0032] Figure 5 This is a cross-sectional structural diagram of the composite plate in the oil management module provided in an exemplary embodiment of this application;

[0033] Figure 6 This is a schematic diagram of the vehicle structure provided in an exemplary embodiment of this application;

[0034] Figure 7 This is a schematic diagram showing the connection relationship of various parts in a vehicle provided in an exemplary embodiment of this application;

[0035] Figure 8 The results of modal analysis are provided in Embodiment 1 of this application, showing the oil management module mounted on the composite board and installed on the electric drive assembly.

[0036] Figure 9 The results of modal analysis are provided in Embodiment 1 of this application, showing the oil management module mounted on a composite board and installed on the electric drive assembly.

[0037] Figure 10 The results are NVH test results of the oil management module provided in Embodiment 1 of this application installed on the electric drive assembly. The red line represents the NVH test results before the composite board is installed, and the green line represents the NVH test results after the composite board is installed.

[0038] Explanation of reference numerals in the attached figures:

[0039] 100. Oil Management Module; 1. First Housing; 11. Cavity; 111. Inlet; 112. Outlet; 12. Flow Channel; 121. First Sub-flow Channel; 122. Second Sub-flow Channel; 2. Pump Body; 21. First Oil Pump; 22. Second Oil Pump; 3. Composite Plate; 31. Support Layer; 32. Damping Layer; 4. Fastener; 5. Radiator; 200. Vehicle; 210. Electric Drive Assembly; 211. Motor; 212. Reducer; 213. Second Housing. Detailed Implementation

[0040] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the protection scope of this application.

[0041] According to the first aspect of this application, referring to Figures 1 to 7 This application provides an oil management module 100, which is used to deliver and recover oil to the electric drive assembly 210 of the vehicle 200, so as to lubricate the electric drive assembly 210.

[0042] The oil management module 100 includes a first housing 1, a pump body 2, and a composite plate 3. The first housing 1 integrates a flow channel 12. The pump body 2 is disposed on the first housing 1 and communicates with the flow channel 12. The composite plate 3 is attached to the first housing 1, and the composite plate 3 includes a support layer 31 and a damping layer 32 stacked together. The support layer 31 has at least two layers, and the damping layer 32 is disposed between two adjacent support layers 31.

[0043] The first housing 1 serves as the main structure of the oil management module 100. Please refer to [link / reference]. Figure 4 The first housing 1 has a cavity 11 for containing engine oil. The first housing 1 also has an inlet 111 and an outlet 112 communicating with the cavity 11. When the engine oil management module 100 is operating, engine oil flows into the cavity 11 through the inlet 111 and flows out of the cavity 11 through the outlet 112. The material of the first housing 1 can be selected according to requirements, for example, it can be metal or plastic, and is not limited here.

[0044] Please see Figure 3The first housing 1 integrates a flow channel 12 for the flow of engine oil. The flow channel 12 can be formed by directly creating a hole within the first housing 1, or it can be defined by a pipe fixedly installed on the first housing 1. The flow channel 12 communicates with the cavity 11, allowing engine oil to enter and exit the cavity 11 through the flow channel 12. As an example, the flow channel 12 includes a first sub-flow channel 121 and a second sub-flow channel 122. The first sub-flow channel 121 communicates with an inlet 111, through which engine oil flows into the cavity 11; the second sub-flow channel 122 communicates with an outlet 112, through which engine oil flows out of the cavity 11.

[0045] Please see Figure 3 The pump body 2 is disposed in the first housing 1. The pump body 2 can be located outside the first housing 1, inside the first housing 1, or through the first housing 1; no limitation is made here. The pump body 2 communicates with the flow channel 12 and is used to pressurize the oil in the flow channel 12 to make the oil flow within the flow channel 12. As an example, the pump body 2 includes a first oil pump 21 and a second oil pump 22. The first oil pump 21 communicates with the first sub-flow channel 121 and is used to pressurize the oil in the first sub-flow channel 121 to make the oil flow into the cavity 11. The second oil pump 22 is used to pressurize the oil in the second sub-flow channel 122 to make the oil flow out of the cavity 11. Optionally, the pump body 2 is an electronic oil pump.

[0046] When the oil management module 100 is applied in the vehicle 200, it is independently located outside the electric drive assembly 210. In other words, the oil management module 100 can be developed separately from the electric drive assembly 210. This arrangement offers the following advantages: the hydraulic structures, such as the pump body 2 and flow channel 12, are separated from the original electric drive assembly and separately mounted on the first housing 1. This not only results in a high degree of integration for the oil management module 100 but also reduces the size of the electric drive assembly 210, improving its lightweight design. Furthermore, it reduces the processing difficulty of both the oil management module 100 and the electric drive assembly 210, improving the processing yield.

[0047] However, since the pump body 2 is mounted on the first housing 1, the excitation generated when the pump body 2 is working will cause significant vibration and noise in the first housing 1. To address this, this embodiment of the application provides a composite plate 3 on the first housing 1. The composite plate 3 is used to absorb the vibration generated by the pump body 2, thereby achieving noise reduction.

[0048] Specifically, the composite panel 3 includes a support layer 31, and the number of support layers 31 is at least two. The composite panel 3 also includes a damping layer 32, which is stacked with the support layer 31, that is, the damping layer 32 is disposed on one side surface of the support layer 31. The damping layer 32 is disposed between two adjacent support layers 31. It can be seen that the number of support layers 31 is greater than the number of damping layers 32. The support layer 31 is used to support the damping layer 32, so the support layer 31 usually has a certain structural strength. Optionally, the support layer 31 can be a metal layer or a non-metal layer. The support layer 31 can also give the composite panel 3 a certain mechanical strength. The damping layer 32 is usually made of a viscoelastic material, such as rubber. Viscoelastic materials have the dual characteristics of viscous fluid and elastic solid, so when subjected to external forces, viscoelastic materials will both store energy (elastic properties) and dissipate energy (viscous properties). The composite plate 3 may have two or more support layers 31, and at least one damping layer 32. For example, please refer to... Figure 5 The composite panel 3 includes two support layers 31 and a damping layer 32 sandwiched between the two support layers 31, thus giving the composite panel 3 a "sandwich" structure. Of course, in other examples, the support layers 31 can also be four or five layers, and correspondingly, the number of damping layers 32 can be two or three layers. From the perspective of lightweighting and cost reduction, the number of support layers 31 and damping layers 32 can be appropriately reduced.

[0049] The composite plate 3 is attached to the first housing 1, that is, the composite plate 3 is attached to the first housing 1. In this way, the vibration of the first housing 1 can be better transmitted to the composite plate 3 and dissipated by the composite plate 3.

[0050] Specifically, when the pump body 2 drives the oil to flow in the flow channel 12, the vibration generated by the pump body 2 is transmitted to the support layer 31 through the first housing 1. The damping layer 32 undergoes tensile and shear deformation along with the attached support layer 31, causing the material inside the damping layer 32 to shift and rub, thereby converting some of the vibration energy into heat energy. In this way, the intensity of the bending wave propagating from the composite plate 3 is weakened, and the vibration time of the composite plate 3 is shortened, thus achieving the purpose of noise reduction.

[0051] In some implementations, please refer to Figure 3The oil management module 100 also includes a radiator 5, which is disposed on the first housing 1 and connected to the flow channel 12. The radiator 5 is disposed on the first housing 1, and can be located outside or inside the first housing 1, without limitation. The radiator 5 is connected to the flow channel 12 and is used to exchange heat with the oil in the flow channel 12 to cool the oil. As an example, the radiator 5 is connected to the first sub-flow channel 121 and is used to cool the oil in the first sub-flow channel 121; the radiator 5 can also be connected to the second sub-flow channel 122 and is used to cool the oil in the second sub-flow channel 122.

[0052] In some embodiments, the first housing 1 is made of plastic. Plastic parts have the advantages of being easy to mold and lightweight, which helps to reduce the weight of the oil management module 100.

[0053] In some embodiments, the plastic part is a polyamide resin structural part. That is, the material of the first housing 1 includes polyamide resin (PA), which has mechanical strength, thermal stability, chemical resistance, and good processing performance, thereby improving the overall performance of the first housing 1. Optionally, the material of the first housing 1 also includes reinforcing materials, such as glass fiber, which helps to improve the strength of the first housing 1. As an example, the material of the first housing 1 includes PA66+GF35. PA66 (Nylon 66) is a polyamide material produced by the polycondensation reaction of adipic acid and hexamethylenediamine, and PA66+GF35 is a PA66-based reinforcing material with 35% glass fiber added. PA66+GF35 has high tensile strength and flexural modulus, making it suitable for applications requiring high strength and rigidity.

[0054] In some embodiments, the density of the plastic part is 1.30 g / cm³. 3 -1.40g / cm 3 The density of plastic is closely related to its strength and stiffness; increasing the density of plastic parts allows them to withstand higher external forces. However, excessively high density of plastic parts can negatively impact the lightweight design of the oil management module 100. For example, the density of the plastic parts is 1.30 g / cm³. 3 1.31 g / cm 3 1.32g / cm 3 1.33g / cm 3 1.34 g / cm 3 1.35g / cm 3 1.36 g / cm 3 1.37g / cm 3 1.38g / cm 3 1.39 g / cm 3 and 1.40 g / cm 3The range of any one or any two of them.

[0055] However, when the first housing 1 is made of plastic, the low elastic modulus of plastic (e.g., PA66+GF35 has an elastic modulus of 11000 MPa, which is only one-third of the elastic modulus of aluminum alloy (approximately 27000 MPa)) results in lower stiffness and consequently, lower modal frequencies. Therefore, when the oil management module 100 is installed on the electric drive assembly 210, significant vibrations are easily generated under the excitation of the pump body 2 of the oil management module 100 and the electric drive assembly 210, including the motor 211 and the reducer 212, leading to increased radiated noise. By providing a composite plate 3 on the first housing 1, not only can the damping layer 32 be used for vibration reduction and noise reduction, but the modal frequencies of the first housing 1 can also be improved to some extent. When the oil management module 100 is assembled with the electric drive assembly 210, the risk of resonance during the operation of the electric drive assembly 210 can be reduced.

[0056] Meanwhile, when the first housing 1 is made of plastic, the yield strength of plastic is low. For example, the yield strength of PA66+GF35 is 100 MPa, which is only 60% of the yield strength of aluminum alloy (170 MPa).

[0057] Because the oil management module 100 has both oil return and storage functions, it needs to be installed at the bottom of the electric drive assembly 210. During vehicle operation, it is easily bumped or struck by flying stones, which could damage the oil management module 100, leading to oil leakage and posing a safety hazard. By integrating a composite plate 3 onto the first housing 1 of the oil management module 100, especially when the support plate 31 is a metal layer, the composite plate 3 can also act as a protective plate to prevent damage to the first housing 1. Compared to the original design where the first housing 1 is completely exposed, the composite plate 3 provides excellent protection for the oil management module 100.

[0058] In some embodiments, the support layer 31 is a metal layer. The metal layer can be a single metal layer containing a single metal, or an alloy layer containing multiple metals. The metal layer has the characteristics of high strength and high hardness, thereby increasing the structural rigidity of the oil management module 100, improving the modal characteristics of the first housing 1, reducing the risk of resonance during the operation of the electric drive assembly 210, and better protecting the first housing 1. As an example, the metal layer includes at least one of an aluminum alloy layer, a stainless steel layer, a galvanized sheet, and a magnesium-aluminum alloy layer.

[0059] In some embodiments, the metal layer is an aluminum alloy layer. That is, the material of the support layer 31 is an aluminum alloy. Aluminum alloy has a low density, approximately 2.7 g / cm³. 3The weight of aluminum alloy is only about one-third that of steel. Using aluminum alloy reduces the weight of the support layer 31, and consequently the weight of the oil management module 100. Aluminum alloy also has good corrosion resistance, allowing the support layer 31 to resist the erosion of various chemicals. Furthermore, aluminum alloy has good thermal conductivity, which can accelerate oil cooling.

[0060] In some implementations, please refer to Figure 1 The composite plate 3 is fixedly connected to the first housing 1 by fasteners 4. By using fasteners 4 to tightly fit the composite plate 3 to the first housing 1, which is the main structure, the damping layer 32 of the composite plate 3 can be better utilized for vibration reduction and noise reduction. As an example, the fasteners 4 are bolts, and the composite plate 3 is installed on the first housing 1 by bolts. There are multiple bolts, which are evenly distributed along the edge area of ​​the composite plate 3 and fix the composite plate 3 to the first housing 1 together.

[0061] In some embodiments, the composite plate 3 is bonded to the first housing 1. This bonding method allows for closer contact between the composite plate 3 and the first housing 1 at more points, thereby facilitating the transmission and absorption of vibrations from the first housing 1 to the composite plate 3. Typically, an adhesive layer is provided between the composite plate 3 and the first housing 1, and the composite plate 3 is bonded to the first housing 1 through this adhesive layer. As an example, the adhesive layer is made of a high-viscosity two-component adhesive.

[0062] In some embodiments, the composite plate 3 is bonded to the first housing 1 and further secured by fasteners 4, resulting in a tighter bond between the composite plate 3 and the first housing 1. In other embodiments, the composite plate 3 and the first housing 1 can be connected by other means, including but not limited to welding, riveting, and snap-fitting.

[0063] In some embodiments, the total thickness of the composite plate 3 is 1.5 mm to 2.1 mm. A greater total thickness of the composite plate 3 results in higher mechanical strength, but also a greater weight. By controlling the total thickness of the composite plate 3 within the aforementioned range, the oil management module 100 can achieve both lightweight design and structural rigidity. As an example, the total thickness of the composite plate 3 is any one or a range between 1.5 mm, 1.6 mm, 1.7 mm, 1.8 mm, 1.9 mm, 2.0 mm, and 2.1 mm.

[0064] In some embodiments, the thickness of the single-layer support layer 31 is 0.7 mm to 1 mm. The thickness of the support layer 31 is an important factor affecting the total thickness of the composite plate 3. The greater the thickness of the single-layer support layer 31, the higher its mechanical strength, and consequently, the higher the mechanical strength and the heavier the composite plate 3. By controlling the thickness of the single-layer support layer 31 to the above range, the oil management module 100 can achieve both lightweight and structural rigidity. As an example, the thickness of the single-layer support layer 31 is any one or any two of 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, and 1 mm.

[0065] In some embodiments, the thickness of the single-layer damping layer 32 is 0.04 mm to 0.1 mm. Increasing the thickness of the damping layer 32 within a certain range is beneficial to improving the noise reduction effect. However, once the thickness of the damping layer 32 reaches a certain value, the noise reduction effect tends to plateau or even decrease. Moreover, excessively thick damping layer 32 can also lead to a decrease in the stiffness of the composite plate 3. By controlling the thickness of the single-layer damping layer 32 to the above-mentioned range, the oil management module 100 can achieve both a better noise reduction effect and structural stiffness. As an example, the thickness of the single-layer damping layer 32 is any one or any two of 0.04 mm, 0.05 mm, 0.06 mm, 0.07 mm, 0.08 mm, 0.09 mm, and 0.1 mm.

[0066] In some embodiments, the damping layer 32 includes at least one of a rubber-based damping layer, a plastic-based damping layer, and a foamed damping layer. The rubber-based damping layer uses rubber as the damping material. Its core principle is to utilize the viscoelastic properties of rubber; under alternating stress, the movement of rubber molecular chains needs to overcome internal frictional resistance, resulting in deformation lag, thereby generating energy consumption, reducing the kinetic energy of the vibrating body, and achieving vibration reduction. The plastic-based damping layer uses plastic as the damping material. The plastic material absorbs and dissipates vibration energy, thereby reducing the vibration amplitude and noise level of the structure. The foamed damping layer is typically composed of foamed material, forming a porous structure internally, which allows for energy dissipation when subjected to vibration. All of the above damping layers can effectively absorb and dissipate vibration energy, reducing vibration and noise. As an example, the material of the damping layer 32 includes at least one of epoxy propylene resin, nitrile rubber, polysulfide rubber, butyl rubber, polyurethane elastomer, polyvinyl butyral, polymethyl methacrylate, plasticized polyvinyl chloride, interpenetrating network polyisobutylene ether, semi-interpenetrating network ethylene propylene diene monomer (EPDM), semi-interpenetrating network ethylene propylene diene monomer (EPDM), and foamed plastic.

[0067] In some embodiments, the damping layer 32 is made of epoxy propylene resin, filler, polyoxyethylene propylene glycerol, 4,4-diamino-3,3-dichloromethane, and dioctyl phthalate. The damping layer 32 is formed by mixing the above materials and then injection molding and curing. The resulting damping layer 32 has advantages such as a wide temperature range, high damping, vibration reduction and noise reduction, fatigue resistance, and environmental friendliness, making it suitable for large-scale industrial production. Optionally, the filler includes at least one of carbon black, micron-sized alumina, and silicone.

[0068] In some embodiments, the damping layer 32 is honeycomb, wavy, or sawtooth-shaped. The honeycomb damping layer 32 has good energy absorption characteristics due to its porous structure. The wavy or sawtooth-shaped damping layer 32 can achieve energy dispersion and dissipation through the triangular grooves on its surface.

[0069] In some embodiments, the damping layer 32 is flat, which is simple to manufacture.

[0070] In some embodiments, the oil management module 100 may further include at least one of a filter press, a suction filter, and a sensor disposed on the first housing 1.

[0071] According to the second aspect of this application, please refer to Figure 6 and Figure 7 This application embodiment also provides a vehicle 200, including an electric drive assembly 210 and the aforementioned oil management module 100. The oil management module 100 is connected to the electric drive assembly 210 and is used to deliver oil to the electric drive assembly 210 or to recover oil.

[0072] The vehicle 200 includes the aforementioned oil management module 100. Since the oil management module 100 is structurally independent of the electric drive assembly 210, this allows for the lightweighting and miniaturization of the electric drive assembly 210. The vehicle 100 can be a plug-in hybrid electric vehicle or a new energy vehicle, etc., and this application does not specifically limit it in this regard.

[0073] In some embodiments, the vehicle 200 also includes wheels, and the electric drive assembly 210 is connected to the wheels and drives the wheels to rotate.

[0074] In some implementations, please refer to Figure 7 The electric drive assembly 210 includes a motor 211, a reducer 212, and a second housing 213. The motor 211 is connected to the reducer 212 and is housed within the second housing 213. Integrating the motor 211 and reducer 212 within the second housing 213 reduces the machining difficulty of the second housing 213 and improves its machining yield. The electric drive assembly 210 can contain one or more motors 211 and one or more reducers 212. Optionally, the electric drive assembly 210 is a dual-electric drive assembly.

[0075] The following description is based on specific embodiments.

[0076] Example 1

[0077] This embodiment provides an oil management module 100, which is 496mm long and 241mm wide. The oil management module 100 includes a first housing 1 made of PA66+GF35 material. A flow channel 12, which is an oil passage, is integrated on the first housing 1. A pump body 2, an electronic oil pump, is also mounted on the first housing 1 and is connected to the oil passage. The oil management module 100 also includes a sandwich-structured composite plate 3 with a total thickness of 1.54mm. The supporting layer 31 of the composite plate 3 is an aluminum alloy layer, and a damping layer 32 made of a polymer damping material, including epoxy propylene resin, is sandwiched between the two aluminum alloy layers. The thickness of each aluminum alloy layer is 0.75mm, and the thickness of the damping layer 32 is 0.04mm. The composite plate 3 is mounted on the first housing 1 of the oil management module 100 using 10 M3 bolts. The bolts must be evenly and reasonably distributed to ensure proper installation.

[0078] Modal analysis was performed on the oil management module 100 before and after the composite plate 3 in Example 1, which was installed on the electric drive assembly 210. The modal analysis results are as follows: Figure 8 and Figure 9 As shown in the figure. The results show that after the composite plate 3 with a sandwich structure is integrated into the oil management module 100, the structural stiffness of the oil management module 100 increases, and its first-order modal frequency increases from 785Hz to 923Hz, with a modal improvement of 15%, which greatly reduces the risk of resonance during the operation of the electric drive assembly 210.

[0079] The oil management module 100, which is mounted before and after the composite plate 3 in Example 1, was installed on the electric drive assembly 210 for noise, vibration, and harshness (NVH) testing. The NVH test results can be found in [link to relevant documentation]. Figure 10 .from Figure 10 The results show that after the oil management module 100 integrates the sandwich structure composite plate 3, the near-field noise of the oil management module 100 is reduced by nearly 15 dBA, and the vibration reduction and noise reduction effect is very obvious.

[0080] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0081] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0082] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0083] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. An oil management module (100), characterized in that, include: The first shell (1) integrates a flow channel (12); Pump body (2), disposed on the first housing (1) and communicating with the flow channel (12); and A composite plate (3) is attached to the first housing (1). The composite plate (3) includes a support layer (31) and a damping layer (32) stacked together. The support layer (31) has at least two layers, and the damping layer (32) is disposed between two adjacent support layers (31).

2. The oil management module (100) according to claim 1, characterized in that, The first housing (1) is a plastic part.

3. The oil management module (100) according to claim 2, characterized in that, The plastic part is a polyamide resin structural part.

4. The oil management module (100) according to claim 2, characterized in that, The material density of the plastic part is 1.30 g / cm³. 3 -1.40g / cm 3 .

5. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The composite plate (3) is fixedly connected to the first housing (1) by fasteners (4); and / or, the composite plate (3) is bonded to the first housing (1).

6. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The total thickness of the composite plate (3) is 1.5mm to 2.1mm.

7. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The thickness of the single-layer support layer (31) is 0.7 mm to 1 mm.

8. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The thickness of the single-layer damping layer (32) is 0.04 mm to 0.1 mm.

9. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The support layer is a metal layer.

10. The oil management module (100) of claim 9, characterized in that, The metal layer includes at least one of aluminum alloy layer, stainless steel layer, galvanized sheet and magnesium-aluminum alloy layer.

11. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The damping layer (32) includes at least one of a rubber-based damping layer, a plastic-based damping layer, and a foamed damping layer.

12. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The damping layer (32) is honeycomb, wavy, or serrated.

13. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The oil management module (100) also includes a radiator (5), which is disposed on the first housing (1) and connected to the flow channel (12).

14. The oil management module (100) according to any one of claims 1 to 4, characterized in that, The first housing (1) is provided with a cavity (11), which is connected to the flow channel (12).

15. A vehicle (200), characterized in that, It includes an electric drive assembly (210) and an oil management module (100) as described in any one of claims 1 to 14, the oil management module (100) being connected to the electric drive assembly (210) and used to supply oil to or recover oil from the electric drive assembly (210).

16. The vehicle (200) of claim 15, characterized by The electric drive assembly (210) includes a motor (211), a reducer (212), and a second housing (213). The motor (211) is connected to the reducer (212) and disposed in the second housing (213).

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