An electric drive assembly and vehicle
Patent Information
- Application Number
- CN202522404749.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-11-12
- Publication Date
- 2026-10-23
- Estimated Expiration
- 2035-11-12
AI Technical Summary
[0004]基于此，本申请提供了一种电驱动总成及车辆，以解决相关技术中电驱动总成的油泵散热性能较差的问题
[0028]电驱动总成通过将油泵设置在储油槽内且使其浸没于油液中，一方面，油泵工作时产生的热量能直接传递给油液，无需依赖空气自然对流，即便车辆低速行驶或静止，热量也会随油液循环被持续带走，油泵的散热性能较好；另一方面，油泵内置于储油槽，无需额外占用电驱动壳体外空间，提升电驱动总成集成度、有助于缩小电驱动总成整体体积，更适配整车紧凑布局。
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Figure CN224890434U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of drive systems, and more particularly to an electric drive system and vehicle. Background Technology
[0002] As a crucial component of electric vehicles, the electric drive assembly significantly influences their development. The electric drive assembly comprises numerous parts, including the motor, reducer, electric drive housing, and oil pump. The oil pump delivers oil from the electric drive housing to the motor and reducer, providing lubrication for both. Simultaneously, the oil circulation absorbs heat, aiding in cooling.
[0003] Oil pumps generate a lot of heat when operating under high load and for long periods of time. In related technologies, oil pumps have poor heat dissipation performance. Utility Model Content
[0004] Based on this, this application provides an electric drive assembly and a vehicle to solve the problem of poor oil pump heat dissipation performance in related technologies.
[0005] In a first aspect, embodiments of this application provide an electric drive assembly, including:
[0006] The electric drive housing has a connected motor mounting cavity, a reducer mounting cavity, and an oil reservoir;
[0007] The motor is installed inside the motor mounting cavity;
[0008] The speed reducer is installed inside the speed reducer mounting cavity;
[0009] An oil pump is installed in the oil storage tank and submerged in the oil in the tank. The oil pump is used to deliver the oil in the oil storage tank to the motor and the reducer.
[0010] In some embodiments, the housing of the oil pump is a plastic housing.
[0011] In some embodiments, the housing includes a housing body and heat dissipation fins disposed on the surface of the housing body.
[0012] In some embodiments, the electrically driven housing includes:
[0013] A drive housing assembly having the motor mounting cavity and the reducer mounting cavity;
[0014] An oil pan is disposed below the drive housing assembly and is detachably connected to the drive housing assembly. The oil pan has the oil reservoir, and the oil pump is detachably connected to the oil pan.
[0015] In some embodiments, the drive housing assembly includes a reducer half-shell, an integrated housing, and a motor rear end cover connected in sequence, wherein the integrated housing and the reducer half-shell together form the reducer mounting cavity, and the integrated housing and the motor rear end cover together form the motor mounting cavity;
[0016] The oil pan is located below the integrated housing and is detachably connected to the integrated housing. An oil leakage hole is provided in the area of the integrated housing opposite to the oil storage tank.
[0017] In some embodiments, a first clearance hole is provided on the side wall of the oil pan, and the wiring harness of the oil pump extends out of the oil storage tank through the first clearance hole, and the wiring harness is sealed to the first clearance hole.
[0018] In some embodiments, the oil pan includes:
[0019] The body has the oil storage tank;
[0020] A bracket is located inside the oil storage tank and is fixedly connected to the main body. The housing of the oil pump is detachably connected to the bracket.
[0021] In some embodiments, the electric drive assembly further includes:
[0022] An oil cooler, the inlet of which is connected to the oil outlet of the oil pump;
[0023] The first oil supply pipe has one end connected to the outlet of the oil cooler, and the other end of the first oil supply pipe faces the motor and the reducer.
[0024] In some embodiments, the oil cooler is disposed outside the electric drive housing, and the side wall of the oil pan has a second clearance hole. The electric drive assembly further includes:
[0025] The second oil supply pipe has one end connected to the inlet of the oil cooler, and the other end extends into the oil storage tank through the second clearance hole and is connected to the oil outlet of the oil pump.
[0026] Secondly, embodiments of this application provide a vehicle, including: the electric drive assembly described in the first aspect.
[0027] This application has at least the following beneficial effects:
[0028] The electric drive assembly places the oil pump in the oil reservoir and immerses it in the oil. On the one hand, the heat generated by the oil pump during operation can be directly transferred to the oil without relying on natural air convection. Even when the vehicle is moving at low speed or stationary, the heat will be continuously carried away by the oil circulation, resulting in good heat dissipation performance of the oil pump. On the other hand, the oil pump is built into the oil reservoir, which does not require additional space outside the electric drive housing. This improves the integration of the electric drive assembly, helps to reduce the overall size of the electric drive assembly, and is more suitable for the compact layout of the vehicle. Attached Figure Description
[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0030] Figure 1 This is a schematic diagram of the structure of the electric drive assembly in one or more embodiments of this application.
[0031] Figure 2 This is a schematic diagram of the structure of the oil pump and oil pan in one or more embodiments of this application.
[0032] Explanation of reference numerals in the attached figures:
[0033] 100-Electric drive assembly, 110-Electric drive housing, 110a-Motor mounting cavity, 110b-Reducer mounting cavity, 110c-Oil reservoir, 111-Drive housing assembly, 112-Reducer half-housing, 113-Integrated housing, 113a-Oil leakage hole, 113b-Third clearance hole, 114-Motor rear end cover, 115-Oil pan, 115a-First clearance hole, 115b-Second clearance hole, 116-Body, 117-Bracket, 120-Motor, 130-Reducer, 140-Oil pump, 141-Housing shell, 1411-Housing shell body, 1412-Heat dissipation fins, 142-Wire harness, 150-Oil cooler, 160-First oil supply pipe, 170-Second oil supply pipe, 200-Oil fluid. Detailed Implementation
[0034] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be described in more detail below with reference to the accompanying drawings. In the drawings, the same or similar reference numerals denote the same or similar components or components having the same or similar functions throughout. The described embodiments are some, but not all, of the embodiments of this application. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application. The embodiments of this application will be described in detail below with reference to the accompanying drawings.
[0035] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, an indirect connection through an intermediate medium, or the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0036] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0037] The terms “first,” “second,” and “third” (if any) in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.
[0038] Furthermore, the terms “comprising” and “having”, and any variations thereof, are intended to cover non-exclusive inclusion, such that a process, method, system, product, or display that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or display.
[0039] The electric drive assembly includes many components such as a motor, a reducer, an electric drive housing, and an oil pump. The motor and reducer are installed inside the electric drive housing. The oil pump is used to deliver oil from the electric drive housing to the motor and reducer, providing lubrication for both. At the same time, the oil circulation absorbs heat, playing an auxiliary cooling role.
[0040] In related technologies, the oil pump is often fixed outside the electric drive housing, and its heat dissipation relies on the natural convection between its own housing and the air to transfer the heat generated during operation to the air for cooling. However, this external layout has limitations: on the one hand, the heat dissipation efficiency of natural convection is highly dependent on the ambient temperature and airflow conditions. When the vehicle is traveling at low speed or stationary, the airflow around the oil pump is poor, and heat easily accumulates on the surface of the oil pump housing and cannot be dissipated quickly. Especially under high-temperature conditions, not only is the oil pump's own temperature prone to exceeding the standard, but it may also cause the oil to heat up too quickly, affecting the lubrication and auxiliary cooling functions of the motor and reducer; on the other hand, the external placement of the oil pump requires independent space outside the housing, and additional installation structures and oil circuit connection pipelines need to be designed, further increasing the overall volume of the electric drive assembly, which is not conducive to the overall vehicle space layout.
[0041] In view of this, the inventors designed an electric drive assembly 100 and a vehicle. The electric drive assembly 100 places the oil pump 140 in the oil reservoir 110c and immerses it in the oil 200. This allows the heat generated by the oil pump 140 during operation to be directly transferred to the oil 200 without relying on natural air convection. Even when the vehicle is moving at low speed or stationary, the heat will be continuously carried away by the circulation of the oil 200. The oil pump 140 has good heat dissipation performance.
[0042] The electric drive assembly 100 and the vehicle provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.
[0043] like Figure 1 and Figure 2 As shown, the electric drive assembly 100 includes: an electric drive housing 110, a motor 120, a reducer 130, and an oil pump 140. The electric drive housing 110 has a communicating motor mounting cavity 110a, a reducer mounting cavity 110b, and an oil reservoir 110c. The motor 120 is mounted in the motor mounting cavity 110a. The reducer 130 is mounted in the reducer mounting cavity 110b. The oil pump 140 is mounted in the oil reservoir 110c and is immersed in the oil 200 in the oil reservoir 110c. The oil pump 140 is used to deliver the oil 200 in the oil reservoir 110c to the motor 120 and the reducer 130.
[0044] The electric drive housing 110 provides support and protection for the internal motor 120 and reducer 130, and can be made of lightweight and thermally conductive materials such as aluminum alloy. Lightweight design meets the requirements for overall vehicle weight reduction, while high thermal conductivity helps dissipate the heat generated by the motor and reducer during operation.
[0045] The electric drive housing 110 has a motor mounting cavity 110a, a reducer mounting cavity 110b, and an oil reservoir 110c. The motor 120 is installed in the motor mounting cavity 110a, and the reducer 130 is installed in the reducer mounting cavity 110b.
[0046] The motor mounting cavity 110a and the reducer mounting cavity 110b are connected, so that the output shaft of the motor 120 can be connected to the input shaft of the reducer 130, so that the motor 120 drives the reducer 130 to rotate.
[0047] The oil reservoir 110c stores oil 200. The oil pump 140 draws oil 200 from the oil reservoir 110c and delivers it to the motor 120 and the reducer 130, providing lubrication for both. Simultaneously, the oil 200 circulates and absorbs heat from both components, aiding in cooling. The motor mounting cavity 110a and the oil reservoir 110c are connected, allowing the oil 200 delivered by the oil pump 140 to the motor 120 to flow back into the oil reservoir 110c. Similarly, the reducer mounting cavity 110b is connected to the oil reservoir 110c, allowing the oil 200 delivered by the oil pump 140 to the reducer 130 to flow back into the oil reservoir 110c, thus achieving the recycling of the oil 200.
[0048] The oil pump 140 is fixedly installed inside the oil storage tank 110c and can be fixedly connected to the inner wall of the oil storage tank 110c. After the oil pump 140 is installed in the oil storage tank 110c, it is submerged in the oil 200. The oil pump 140 can be completely submerged in the oil 200, or it can be partially submerged in the oil 200.
[0049] The electric drive assembly 100 has an oil pump 140 installed in the oil reservoir 110c and submerged in the oil 200. On the one hand, the heat generated by the oil pump 140 during operation can be directly transferred to the oil 200 without relying on natural air convection. Even when the vehicle is moving at low speed or stationary, the heat will be continuously carried away by the circulation of the oil 200, and the oil pump 140 has good heat dissipation performance. On the other hand, the oil pump 140 is built into the oil reservoir 110c, which does not require additional space outside the electric drive housing 110, thereby improving the integration of the electric drive assembly 100, helping to reduce the overall size of the electric drive assembly 100, and making it more suitable for the compact layout of the vehicle.
[0050] The structure of the oil pump 140 is varied and is known to those skilled in the art, and is not limited thereto in this application. The oil pump 140 may include a housing 141 and an oil pumping module disposed within the housing 141. The oil pumping module may include components such as an oil pumping motor and a gear pump head.
[0051] The housing 141 of the oil pump 140 can be made of metal, or of thermosetting plastic, high-performance engineering plastic, or other plastic materials, and is not limited in this application.
[0052] In some embodiments, the housing 141 of the oil pump 140 is a plastic housing.
[0053] Compared to the metal housing 141, the plastic housing can be molded in one piece using injection molding, eliminating the need for secondary processing. This helps reduce manufacturing costs and simplify the processing technology. Furthermore, the low density and light weight of the plastic housing contribute to the lightweight design of the electric drive assembly 100, better aligning with vehicle energy conservation and emission reduction goals. Importantly, combined with the design where the oil pump 140 is immersed in the oil reservoir 110c within the oil 200, the low thermal conductivity of the plastic housing effectively mitigates its heat dissipation drawbacks. Specifically, the heat generated by the oil pump 140 during operation can be quickly absorbed by the directly contacting oil 200 and carried away through circulation. This solves the problem that existing plastic housing technologies, due to insufficient heat dissipation, are unsuitable for prolonged high-load operation and difficult to apply in the electric drive assembly 100. This ensures that the plastic housing meets cost and lightweight requirements while maintaining the operating efficiency and reliability of the oil pump 140.
[0054] The plastic casing can be made of thermosetting plastics or high-performance engineering plastics, such as PPS and PA66+GF. Thermosetting plastics and high-performance engineering plastics have excellent high temperature resistance and corrosion resistance, and can withstand the high temperature of the oil pump at 140°C and long-term immersion in oil at 200°C, ensuring the structural stability and service life of the plastic casing.
[0055] like Figure 2 As shown, in some embodiments, the housing 141 includes a housing body 1411 and heat dissipation fins 1412 disposed on the surface of the housing body 1411.
[0056] The oil pump module of the oil pump 140 is located inside the outer casing 1411, and the heat dissipation fins 1412 are fixedly mounted on the surface of the outer casing 1411. The heat dissipation fins 1412 and the outer casing 1411 can be integrally molded using injection molding to reduce processing difficulty.
[0057] Compared to the smooth outer casing 1411, the design of the heat dissipation fins 1412 increases the contact area between the outer casing 141 and the oil 200. When the oil pump 140 is working, heat is transferred to the outer casing 1411. Part of the heat is directly conducted to the oil 200 through the outer casing 1411, while the other part is transferred to the heat dissipation fins 1412 and quickly diffused into the surrounding oil 200. The convection characteristics of the oil 200 accelerate the removal of heat. This design helps to improve the heat dissipation performance of the outer casing 141, making its heat dissipation capacity more suitable for long-term high-load conditions.
[0058] In some embodiments, heat dissipation fins 1412 are arranged in a ring around the outer casing body 1411.
[0059] In some embodiments, a plurality of heat dissipation fins 1412 are provided at intervals on the outer casing 1411.
[0060] In some embodiments, the electric drive housing 110 includes a drive housing assembly 111 and an oil pan 115. The drive housing assembly 111 has a motor mounting cavity 110a and a reducer mounting cavity 110b. The oil pan 115 is disposed below the drive housing assembly 111 and is detachably connected to the drive housing assembly 111. The oil pan 115 has an oil reservoir 110c, and an oil pump 140 is detachably connected to the oil pan 115.
[0061] The electric drive housing 110 comprises two parts: a drive housing assembly 111 and an oil pan 115. This allows the drive housing assembly 111 and the oil pan 115 to be machined independently, and then assembled to form the electric drive housing 110. This helps reduce the overall manufacturing difficulty and cost. The oil pan 115 and the drive housing assembly 111 are detachably connected, allowing the oil pan 115 to be removed for oil 200 replacement or cleaning of the inside of the oil reservoir 110c. The oil pump 140 is also detachably connected to the oil pan 115, allowing the oil pump 140 to be removed from the oil pan 115, facilitating subsequent inspection and maintenance of the oil pump 140.
[0062] In some embodiments, the drive housing assembly 111 includes a reducer half-shell 112, an integrated housing 113, and a motor rear end cover 114 connected in sequence. The integrated housing 113 and the reducer half-shell 112 together form a reducer mounting cavity 110b, and the integrated housing 113 and the motor rear end cover 114 together form a motor mounting cavity 110a. An oil pan 115 is disposed below the integrated housing 113 and is detachably connected to the integrated housing 113. An oil leakage hole 113a is provided in the area of the integrated housing 113 opposite to the oil reservoir 110c.
[0063] The drive housing assembly 111 comprises three parts: a reducer half-shell 112, an integrated housing 113, and a motor rear end cover 114. This allows the reducer half-shell 112, the integrated housing 113, and the motor rear end cover 114 to be manufactured independently, and then assembled to form the drive housing assembly 111. This helps reduce the manufacturing difficulty and cost of the drive housing assembly 111. It is understood that both the reducer half-shell 112 and the motor rear end cover 114 are detachably connected to the integrated housing 113. The sequentially detachable connection of the reducer half-shell 112, the integrated housing 113, and the motor rear end cover 114 allows for individual removal of the reducer half-shell 112 and the motor rear end cover 114, facilitating maintenance of components such as the motor 120 and the reducer 130. An oil drain hole 113a is provided in the area opposite the integrated housing 113 and the oil reservoir 110c, allowing the oil 200 in the motor mounting cavity 110a and the reducer mounting cavity 110b to flow back into the oil reservoir 110c through the oil drain hole 113a. It is understood that the inner bottom walls of the reducer half-shell 112, the integrated housing 113, and the motor rear end cover 114 can be inclined to facilitate the oil 200 converging at the oil drain hole 113a.
[0064] In some embodiments, a first clearance hole 115a is provided on the side wall of the oil pan 115, and the wiring harness 142 of the oil pump 140 extends out of the oil storage tank 110c through the first clearance hole 115a, and the wiring harness 142 is sealed to the first clearance hole 115a.
[0065] The wiring harness 142 of the oil pump 140 extends out of the oil reservoir 110c through the first clearance hole 115a, allowing the wiring harness 142 to be electrically connected to an external circuit (such as the vehicle power supply or controller), enabling the oil pump 140 to pump oil 200 under electrical power. The wiring harness 142 is sealed to the first clearance hole 115a, preventing oil 200 leakage from the oil reservoir 110c, avoiding oil loss and contamination of external components. It also prevents external dust and moisture from entering the oil reservoir 110c through the first clearance hole 115a and contaminating the oil 200, ensuring the cleanliness of the oil 200 and the stability of the operating environment of the oil pump 140. The sealing connection between the wiring harness 142 and the first clearance hole 115a can be achieved in various ways, such as by applying sealant or using a sealing ring; this application does not limit the method.
[0066] In some embodiments, the oil pan 115 includes a body 116 and a bracket 117. The body 116 has an oil reservoir 110c; the bracket 117 is located in the oil reservoir 110c and is fixedly connected to the body 116, and the housing 141 of the oil pump 140 is detachably connected to the bracket 117.
[0067] The oil pan 115 is configured to consist of two parts: a body 116 and a bracket 117. This allows the body 116 and the bracket 117 to be machined independently. After machining, they are fixedly connected to form the oil pan 115, which reduces the machining difficulty of the oil pan 115. The body 116 and the bracket 117 can be fixedly connected by means of bonding, welding, snap-fitting, bolting, etc.
[0068] like Figure 2 As shown, in some embodiments, the bracket 117 is connected to the bottom wall of the oil pan 115, and a through hole is provided at the end of the bracket 117 away from the oil pan 115. A through hole is also provided on the housing 141 of the oil pump 140. The oil pump 140 and the bracket 117 are connected by bolts passing through the two through holes.
[0069] In some embodiments, the electric drive assembly 100 further includes an oil cooler 150 and a first oil supply pipe 160. The inlet of the oil cooler 150 is connected to the outlet of the oil pump 140. One end of the first oil supply pipe 160 is connected to the outlet of the oil cooler 150, and the other end is directed toward the motor 120 and the reducer 130.
[0070] In other words, the inlet of the first oil supply pipe 160 is connected to the outlet of the oil cooler 150. The first oil supply pipe 160 has multiple outlets, some of which are directed toward the components of the motor 120 that require lubrication, and others are directed toward the components of the reducer 130 that require lubrication.
[0071] The inlet of the oil cooler 150 is connected to the outlet of the oil pump 140, which can cool the oil 200 output by the oil pump 140. This effectively reduces the temperature of the oil 200 during circulation due to the absorption of heat from the motor 120, reducer 130, and the oil pump 140 itself, preventing the viscosity of the oil 200 from decreasing and its lubricating performance from deteriorating due to high temperature. The first oil delivery pipe 160 delivers the cooled oil 200 to the heat-generating components or components requiring cooling in the motor 120 and reducer 130 (such as the bearings, stator, rotor, and gear meshing surfaces of the motor 120), allowing the low-temperature oil 200 to act on these components, providing lubrication and cooling.
[0072] In some embodiments, the oil cooler 150 is disposed outside the electric drive housing 110, and the side wall of the oil pan 115 is provided with a second clearance hole 115b. The electric drive assembly 100 also includes a second oil supply pipe 170, one end of which is connected to the inlet of the oil cooler 150, and the other end extends into the oil storage tank 110c through the second clearance hole 115b and is connected to the oil outlet of the oil pump 140.
[0073] The external placement of the oil cooler 150 utilizes the space outside the electric drive housing 110, avoiding its occupation of the mounting space for the motor 120, reducer 130, or oil pump 140 within the electric drive housing 110. It also facilitates the connection of the oil cooler 150 with the vehicle's cooling system (such as the coolant circuit and cooling ducts), improving the cooling efficiency of the oil 200. The second clearance hole 115b provides a channel for the second oil delivery pipe 170 to extend from outside the electric drive housing 110 into the oil reservoir 110c, allowing the second oil delivery pipe 170 to connect the oil pump 140 outlet with the oil cooler 150 inlet, thus enabling the delivery of oil 200 from the oil pump 140 to the oil cooler 150.
[0074] It is understandable that the sealing connection between the second oil supply pipe 170 and the second clearance hole 115b can be achieved by using sealant, sealing rings, or other methods.
[0075] In some embodiments, a third clearance hole 113b is provided on the integrated housing 113. One end of the first oil supply pipe 160 is located outside the integrated housing 113 and communicates with the outlet of the oil cooler 150. The other end extends into the integrated housing 113 through the third clearance hole 113b and faces the motor 120 and the reducer 130.
[0076] It is understandable that the sealing connection between the first oil supply pipe 160 and the third clearance hole 113b can be achieved by using sealant, sealing rings, or other methods.
[0077] Based on the same inventive concept, this application also provides a vehicle including the above-described electric drive assembly 100.
[0078] Since the vehicle includes the aforementioned electric drive assembly 100, it naturally possesses all the beneficial effects of the electric drive assembly 100, which will not be elaborated upon here.
[0079] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.
Claims
1. An electric drive assembly, characterized in that, include: The electric drive housing (110) has a connected motor mounting cavity (110a), a reducer mounting cavity (110b) and an oil reservoir (110c). The motor (120) is installed inside the motor mounting cavity (110a); A speed reducer (130) is installed inside the speed reducer mounting cavity (110b); An oil pump (140) is installed in the oil reservoir (110c) and immersed in the oil (200) in the oil reservoir (110c). The oil pump (140) is used to send the oil (200) in the oil reservoir (110c) to the motor (120) and the reducer (130).
2. The electric drive assembly according to claim 1, characterized in that, The oil pump (140) includes a housing (141), which is a plastic housing.
3. The electric drive assembly according to claim 2, characterized in that, The outer casing (141) includes an outer casing body (1411) and heat dissipation fins (1412) disposed on the surface of the outer casing body (1411).
4. The electric drive assembly according to any one of claims 1-3, characterized in that, The electrically driven housing (110) includes: The drive housing assembly (111) has the motor mounting cavity (110a) and the reducer mounting cavity (110b). An oil pan (115) is disposed below the drive housing assembly (111) and is detachably connected to the drive housing assembly (111). The oil pan (115) has the oil reservoir (110c). The oil pump (140) is detachably connected to the oil pan (115).
5. The electric drive assembly according to claim 4, characterized in that, The drive housing assembly (111) includes a reducer half-shell (112), an integrated housing (113), and a motor rear end cover (114) connected in sequence. The integrated housing (113) and the reducer half-shell (112) together form the reducer mounting cavity (110b), and the integrated housing (113) and the motor rear end cover (114) together form the motor mounting cavity (110a). The oil pan (115) is located below the integrated housing (113) and is detachably connected to the integrated housing (113). An oil leakage hole (113a) is provided in the area of the integrated housing (113) opposite to the oil storage tank (110c).
6. The electric drive assembly according to claim 4, characterized in that, The oil pan (115) has a first clearance hole (115a) on its side wall. The wiring harness (142) of the oil pump (140) extends out of the oil reservoir (110c) through the first clearance hole (115a) and is sealed to the first clearance hole (115a).
7. The electric drive assembly according to claim 4, characterized in that, The oil pan (115) includes: The body (116) has the oil storage tank (110c); The bracket (117) is located inside the oil storage tank (110c) and is fixedly connected to the body (116). The housing (141) of the oil pump (140) is detachably connected to the bracket (117).
8. The electric drive assembly according to claim 4, characterized in that, The electric drive assembly (100) also includes: An oil cooler (150) is provided, the inlet of which is connected to the outlet of the oil pump (140). The first oil supply pipe (160) has one end connected to the outlet of the oil cooler (150) and the other end facing the motor (120) and the reducer (130).
9. The electric drive assembly according to claim 8, characterized in that, The oil cooler (150) is disposed outside the electric drive housing (110), and the side wall of the oil pan (115) is provided with a second clearance hole (115b). The electric drive assembly (100) further includes: The second oil supply pipe (170) has one end connected to the inlet of the oil cooler (150) and the other end extended into the oil storage tank (110c) through the second clearance hole (115b) and connected to the oil outlet of the oil pump (140).
10. A vehicle, characterized in that, include: The electric drive assembly (100) according to any one of claims 1-9.