Oil pan assembly, power assembly and automobile

Abstract

The utility model discloses an oil pan assembly, a power assembly and an automobile, and relates to the field of automobiles, the oil pan assembly comprises an oil pan, a pump body and a cover body, an oil cavity is formed in the oil pan, the oil pan is provided with a mounting port communicated with the oil cavity, and the oil cavity is filled with oil; the pump body is contained in the oil cavity and comprises a motor and a pump head, and an output shaft of the motor is sleeved with the pump head; the cover body is connected with the oil pan and covers the installation opening so as to seal the oil cavity. The utility model aims to simplify the structure of the pump body, reduce the installation space and enhance the cooling efficiency of the pump body.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of automobile, especially an oil pan assembly, a power assembly and an automobile. BACKGROUND

[0002] With the continuous development of automobile technology, the pump body plays a key role in the power system, especially in electric vehicles, providing cooling and lubrication functions for the electric drive system. Figure 1 As shown in the figure, the traditional oil pump structure usually adopts a three-in-one design, including a shell and a PCB control module, a motor, a pump head and an oil inlet and outlet structure built into the shell, the pump head is connected with the oil pan through the oil inlet and outlet structure, and the pump body with a three-in-one structure needs to be arranged independently around the engine or drive system to realize control, driving and pumping functions.

[0003] However, this independent arrangement method makes the pump body occupy a larger space, thereby increasing the design difficulty and installation complexity of the vehicle power system, and since the internal elements of the pump body are not in direct contact with the cooling oil, the heat of the pump body is difficult to dissipate effectively, thereby causing the working temperature of the pump body to be too high, thereby affecting its long-term reliability and service life. Therefore, the traditional three-in-one design of the pump body has gradually exposed its limitations in the face of the increasingly stringent requirements of miniaturization, lightweight and high reliability of electric vehicle power systems, and it is urgent to seek a more optimized solution. SUMMARY

[0004] The main purpose of the utility model is to provide an oil pan assembly, a power assembly and an automobile, which aims to simplify the pump body structure, reduce the installation space and enhance the cooling efficiency of the pump body.

[0005] To achieve the above purpose, the utility model provides an oil pan assembly, comprising:

[0006] An oil pan, an oil cavity is formed in the inside of the oil pan, an installation port communicating with the oil cavity is formed in the oil pan, and the oil cavity is filled with oil;

[0007] A pump body, the pump body is accommodated in the oil cavity, the pump body comprises a motor and a pump head, the pump head is sleeved on the output shaft of the motor; and

[0008] A cover body, the cover body is connected to the oil pan and covers the installation port to seal the oil cavity. In an embodiment, a plug-in part is protruded on one side of the cover body close to the oil pan, and the plug-in part is plugged into the oil cavity.

[0009] In an embodiment, the motor is fixedly arranged on the plug-in part.

[0010] In an embodiment, the oil pan assembly further comprises a seal, which is arranged in the gap between the plug-in part and the oil cavity to seal the oil cavity.

[0011] In an embodiment, the oil pan assembly further comprises an immersed oil cooler, which is arranged in the oil cavity to cool the oil.

[0012] In an embodiment, the oil pan assembly further comprises a filter, which is arranged in the oil cavity to filter the oil.

[0013] In an embodiment, the oil pan assembly further comprises a fixing structure, which comprises a concave part and a convex part; one of the concave part and the convex part is arranged on the motor, and the other is arranged on the cavity wall of the oil cavity; the convex part is plugged into the concave part to fix the motor and the oil pan as a whole.

[0014] The utility model also provides a power assembly, which comprises:

[0015] An electric control assembly, which comprises a PCB control module;

[0016] The oil pan assembly as described above; and

[0017] Three-phase leads, one end of which penetrates through the cover to extend into the oil cavity and electrically connect with the motor, and the other end of which electrically connects with the PCB control module.

[0018] In an embodiment, the cover is provided with a lead-out hole; the three-phase leads penetrate through the lead-out hole;

[0019] The oil pan assembly further comprises a sealing adhesive, which is arranged in the gap between the three-phase leads and the lead-out hole to seal the lead-out hole.

[0020] The utility model also provides an automobile, which comprises the power assembly as described above.

[0021] The oil pan assembly provided by the utility model is designed by integrating the control module of the oil pump in the electric control assembly, directly placing the motor and the pump head of the oil pump in the oil cavity in the oil pan, and sealing the oil cavity through the cover, so that the oil pump and the oil pan are integrated, the installation space of the power system is reduced, and the heat dissipation performance is improved obviously. Specifically, the motor, the pump head and the oil pan are integrated, the structural layout of the power system is simplified, the manufacturing cost and the installation difficulty are reduced, the overall occupied space of the pump body is reduced, which is extremely beneficial to the miniaturization and lightweight design of the power system of the electric vehicle. In addition, since the entire pump body is located in the oil cavity in the oil pan, that is, the motor and the pump head can be directly immersed in the oil, the oil can effectively absorb and remove the heat generated by the motor, so that the heat dissipation efficiency of the pump body is improved and the operating temperature of the pump body is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the present utility model, and other drawings can be obtained according to the structures shown in these drawings without creative labor for those skilled in the art.

[0023] Figure 1 It is a structural schematic view of the oil pump in the prior art.

[0024] Figure 2 It is a structural schematic view of an embodiment of the oil pan assembly provided by the present utility model.

[0025] Figure 3 It is a structural schematic view of another embodiment of the oil pan assembly provided by the present utility model.

[0026] EXPLANATION OF DRAWINGS:

[0027] 100, oil pan assembly; 1, oil pan; 2, pump body; 21, motor; 22, pump head; 3, cover.

[0028] The implementation, functional characteristics and advantages of the present utility model will be further described with reference to the embodiments and the drawings. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present utility model will be described clearly and completely below with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all the embodiments. Based on the embodiments in the present utility model, all the other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the present utility model.

[0030] It should be noted that if the embodiment of the utility model has the direction indication (such as up, down, left, right, front, back), the direction indication is only used to explain the relative position relationship, movement condition and the like between the components in a certain specific posture, if the specific posture changes, the direction indication also changes accordingly.

[0031] In addition, if the embodiment of the utility model has the description of "first", "second" and the like, the description of "first", "second" and the like is only for the purpose of description, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can be explicitly or implicitly included at least one feature. In addition, "and / or" or "and / or" appearing in the whole text means that the three parallel schemes are included, for example, "A and / or B" includes A scheme, or B scheme, or A and B scheme. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, and is not within the protection scope required by the utility model.

[0032] The utility model provides a kind of oil sump assembly 100.

[0033] To achieve the above object, in the utility model embodiment, the oil sump assembly 100 includes oil sump 1, pump body 2 and cover body 3, the inside of oil sump 1 is formed with oil cavity, oil sump 1 is provided with installation port communicating oil cavity, and oil cavity is filled with oil liquid;Pump body 2 is contained in oil cavity, and pump body 2 includes motor 21 and pump head 22, and pump head 22 is sleeved on the output shaft of motor 21;Cover body 3 is connected to oil sump 1 and covers installation port to seal oil cavity.

[0034] The utility model discloses oil sump assembly 100 design is directly placed in the oil cavity in oil sump 1 by motor 21 and pump head 22, and oil cavity is sealed by cover body 3, realizes the compactness of oil sump assembly 100 structure, and significantly improves the heat dissipation performance. Specifically, the design integrates motor 21 and pump head 22 with oil sump 1, simplifies the structure layout of power system, reduces manufacturing cost and installation difficulty, while reducing the overall space occupied by pump body 2, which is extremely beneficial to the miniaturization and lightweight design of electric vehicle power system. In addition, since the entire pump body 2 is located in the oil cavity inside oil sump 1, i.e. motor 21 and pump head 22 can be directly immersed in oil liquid, so that the oil liquid can effectively absorb and remove the heat generated by motor 21, thereby improving the heat dissipation efficiency of pump body 2 and reducing the operating temperature of pump body 2.

[0035] It should be noted that the "connection" in "the cover body 3 is connected with the oil pan 1 and the cover is arranged on the mounting port to seal the oil cavity" refers to fixing the cover body 3 and the oil pan 1 together by screws, welding, adhesion or other mechanical fixing methods, so as to ensure that the oil in the oil cavity will not leak, and the connection method can be selected according to specific conditions and design requirements to ensure the firmness and sealing performance of the connection.

[0036] Further, in an embodiment, the cover body 3 is provided with a plug-in part on the side close to the oil pan 1, and the plug-in part is plugged into the oil cavity through the mounting port. Through the design of the plug-in part, the cover body 3 can be easily inserted into the oil cavity through the mounting port, so as to simplify the assembly process, reduce the assembly time, and the plug-in part can also improve the sealing performance between the cover body 3 and the pump body 2 to prevent oil leakage. It should be noted that the shape of the plug-in part needs to match the shape of the mounting port, which can be square, circular or other special-shaped structures to achieve good cooperation and fixation.

[0037] It should be noted that according to different design requirements, the cover body 3 can be integrally arranged with the pump body 2 in the oil pan assembly 100 structure, or can be arranged separately, therefore, the connection method of the cover body 3 and the motor 21 is not limited in the present application, as long as the cover body 3 can seal the oil cavity. When the pump body 2 is integrally arranged with the cover body 3, in order to facilitate the installation of the motor 21, in an embodiment, the motor 21 is fixedly arranged on the plug-in part, which can simplify the overall structure, reduce the number of parts, and is conducive to the compactness of the pump body 2, saves space, and the fixation of the motor 21 on the plug-in part can also ensure the stability of the motor 21 during operation, and can be quickly disassembled and replaced when needed. Specifically, during actual installation, threaded holes can be arranged on the plug-in part, and the motor 21 is threadedly connected with the plug-in part through bolts and nuts, or a buckle structure is designed on the motor 21 and the plug-in part, and the motor 21 is fixed through the cooperation of the buckles.

[0038] In an embodiment, the oil pan assembly 100 further comprises a sealing member arranged in the gap between the plug-in part and the oil cavity to seal the oil cavity. In this way, the leakage of oil from the gap between the plug-in part and the oil cavity can be effectively prevented, and the sealing of the oil pan assembly 100 can be ensured. The sealing member can be an O-ring, a V-ring, a lip seal ring or a square ring, etc., and appropriate materials and shapes can be selected according to the working conditions of the oil pan assembly 100, the type of oil and the shape of the plug-in part. The installation position of the sealing member is usually at the junction between the plug-in part and the pump body 2, for example, the sealing member is arranged on the outside of the plug-in part, and through accurate machining and assembly, the sealing member can withstand the pressure and temperature changes during the operation of the oil pan assembly 100 without compromising its performance. In addition, the material of the sealing member needs to have good oil resistance, temperature resistance and wear resistance to ensure the reliability and stability of the oil pan assembly 100 during long-term use.

[0039] In an embodiment, the oil sump assembly 100 further comprises an immersion oil cooler disposed in the oil cavity for cooling the oil. The immersion oil cooler is typically made of metal or other oil-resistant and heat-resistant materials, has high heat conduction efficiency, can quickly absorb heat in the oil, so that the oil can directly contact the immersion oil cooler during circulation, effectively reduce the temperature of the oil through heat exchange, and prevent the performance of the oil sump assembly 100 from being reduced or damaged due to high oil temperature during continuous operation. The immersion oil cooler can be optimally designed in terms of its position and structure according to the space of the oil cavity and the flow characteristics of the oil, to ensure the maximization of the cooling effect. When the oil sump assembly 100 is running, the oil flows through the immersion oil cooler, and the heat is taken away by the cooling medium (such as cooling water or coolant) inside the immersion oil cooler, so as to keep the temperature of the oil within a suitable range. In addition, the use of the immersion oil cooler can also reduce the complexity of the oil sump assembly 100 system and the need for external cooling systems, and improve the compactness and efficiency of the overall system.

[0040] In an embodiment, the oil sump assembly 100 further comprises a filter disposed in the oil cavity for filtering the oil. The filter can ensure the cleanliness of the oil, prevent impurities from entering the interior of the oil sump assembly 100, thereby protecting the precision components in the pump and prolonging the service life of the oil sump assembly 100. The filter is usually arranged at the inlet of the oil cavity so as to filter the oil when it flows into the oil cavity.

[0041] In an embodiment, the oil sump assembly 100 further comprises a fixing structure comprising a recess and a protrusion; one of the recess and the protrusion is disposed on the motor 21, and the other is disposed on the cavity wall of the oil cavity; the protrusion is inserted into the recess to fix the motor 21 and the oil sump 1 as a whole. Specifically, the recess can be disposed on the side or end of the motor 21, and the protrusion is correspondingly disposed on the cavity wall of the oil cavity. When assembling the oil sump assembly 100, the protrusion on the motor 21 is inserted into the recess on the cavity wall of the oil cavity, and the motor 21 and the oil cavity are fixed through close fitting. Of course, the protrusion and the recess can not only be arranged as a planar structure, but also can be designed as a conical structure, which can realize close fitting and fixation by using the self-locking characteristics of the conical surface, and further fixed by using bolts or other fasteners. The fixing structure provides a simple and effective fixing method, which ensures the stable position of the motor 21 in the oil cavity of the oil sump 1 through fitting, and facilitates the installation and disassembly of the motor 21.

[0042] The utility model discloses still provide a kind of power assembly, the power assembly includes electric control assembly, oil sump assembly 100 and three-phase lead, the specific structure of the oil sump assembly 100 refers to above-mentioned embodiment, since the power assembly adopts all technical solutions of above-mentioned all embodiments, thus at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration.Electric control assembly includes PCB control module, one end of three-phase lead passes through cover 3 to extend into oil cavity and motor 21 electrical connection, the other end of three-phase lead is electrically connected with PCB control module.

[0043] It needs to be explained that the power assembly provided by the utility model separates the PCB control module in the traditional oil sump assembly from the pump body structure and integrates it into the electric control assembly (i.e., the automobile electric drive assembly) of the electric drive system, which is responsible for receiving external signals and accurately controlling the motor 21 to realize the functions of starting, stopping and speed regulation of the oil sump assembly 100. In addition, the pin needle of the three-phase lead usually needs to pierce the enameled wire of the motor 21 for connection and is connected with the PCB control module to form a complete electrical connection path, which ensures that the motor 21 can receive power supply from the electric control assembly and enables the electric control assembly to effectively control and monitor the motor 21. The material and insulation performance of the three-phase lead need to meet the requirements of specific working environment to adapt to the harsh conditions such as high temperature, vibration and oil pollution that the oil sump assembly 100 may face.

[0044] Further, in order to ensure the reliability and safety of electrical connection, the threading part of the three-phase lead usually needs to be sealed by sealing process to prevent oil leakage and foreign matter from entering the oil cavity, therefore, in an embodiment, the cover 3 is provided with a lead-out hole through which the three-phase lead passes, and the oil sump assembly 100 further includes a sealing glue which is arranged in the gap between the three-phase lead and the lead-out hole to seal the lead-out hole. In the above structure, the sealing glue can be silicone rubber, epoxy resin or other materials with good sealing performance and oil resistance. The sealing glue fills the gap between the three-phase lead and the lead-out hole to form a reliable sealing barrier. It needs to be explained that the sealing glue can be applied by a glue dispenser or a manual glue gun, and the glue dispensing parameters such as glue dispensing speed, glue dispensing amount and glue dispensing path are adjusted according to the size of the lead-out hole and the layout of the three-phase lead. The glue dispensing process is selected to apply the sealing glue, which can ensure that the sealing glue is accurately filled only where it is needed, avoiding excess or deficiency.

[0045] The utility model discloses still provide a kind of automobile, the automobile includes power assembly, the specific structure of the power assembly refers to above-mentioned embodiment, since the automobile adopts all technical solutions of above-mentioned all embodiments, thus at least have all beneficial effects brought by the technical scheme of above-mentioned embodiment, here no longer one by one elaboration.

[0046] The above merely illustrates the exemplary embodiments of the present application, and does not limit the patent scope of the present application, and any equivalent structural transformation or direct / indirect application in other related technical fields under the technical concept of the present application and by using the content of the present application specification and drawings are included in the patent protection scope of the present application.

Claims

1. An oil pan assembly characterized by, The oil sump assembly comprises: an oil sump, an oil cavity being formed inside the oil sump, the oil sump being provided with a mounting port communicating with the oil cavity, the oil cavity being filled with oil; a pump body, the pump body being accommodated in the oil cavity, the pump body comprising a motor and a pump head, the pump head being sleeved on an output shaft of the motor; and a cover body, the cover body being connected to the oil sump and covering the mounting port to seal the oil cavity.

2. The oil pan assembly of claim 1, wherein, The cover body is provided with a plug-in portion on a side close to the oil sump, the plug-in portion being plugged into the oil cavity through the mounting port.

3. The oil pan assembly of claim 2, wherein, The motor is fixedly arranged on the plug-in portion.

4. The oil pan assembly of claim 2, wherein, The oil sump assembly further comprises a sealing member, the sealing member being arranged in a gap between the plug-in portion and the oil cavity to seal the oil cavity.

5. The oil pan assembly of any one of claims 1-4, wherein, The oil sump assembly further comprises an immersed oil cooler, the immersed oil cooler being arranged in the oil cavity to cool the oil.

6. The oil pan assembly of any one of claims 1-4, wherein, The oil sump assembly further comprises a filter, the filter being arranged in the oil cavity to filter the oil.

7. The oil pan assembly of any one of claims 1 to 4, wherein, The oil sump assembly further comprises a fixing structure, the fixing structure comprising a recess and a protrusion, one of the recess and the protrusion being arranged on the motor and the other being arranged on a cavity wall of the oil cavity, the protrusion being plugged into the recess to fix the motor and the oil sump as a whole.

8. A powertrain characterized by, The oil sump assembly comprises: an electronic control assembly, the electronic control assembly comprising a PCB control module; the oil sump assembly according to any one of claims 1 to 7; and a three-phase lead, one end of the three-phase lead penetrating through the cover body to extend into the oil cavity and electrically connected to the motor, the other end of the three-phase lead being electrically connected to the PCB control module.

9. The powertrain of claim 8, wherein, The cover body is provided with a lead-out hole, the three-phase lead penetrating through the lead-out hole. The oil sump assembly further comprises a sealing adhesive, the sealing adhesive being arranged in a gap between the three-phase lead and the lead-out hole to seal the lead-out hole.

10. An automobile characterized by comprising: The power assembly comprises the oil sump assembly according to claim 8 or 9.

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