Oil suction pipe, oil cooling system, electric drive system, engine and vehicle

Abstract

The embodiment of the utility model provides an oil suction pipe, an oil cooling system, an electric drive system, an engine and a vehicle. Wherein the oil suction pipe comprises a liquid suction pipe seat, a flexible pipe and a mass block, one end of the flexible pipe is communicated with the liquid suction pipe seat, and the mass block is arranged at the other end of the flexible pipe. According to the oil suction pipe, the flexible pipe communicated with the liquid suction pipe seat is arranged, and under the weight effect of the mass block, the oil inlet of the flexible pipe adapts to the liquid level and is adjusted together with the liquid level under the gravity effect, so that the oil inlet of the oil suction pipe can swing towards the inclination direction of the oil liquid level along with the inclination of the oil liquid level in the oil pan; and the oil inlet is always located below the oil level. And meanwhile, the design depth of the oil pan and the filling amount of oil liquid can be reduced. Therefore, the oil suction pipe has the advantages that the size of the oil pan is reduced and the total oil filling amount is reduced on the premise that the oil supply continuity is guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of automotive engine technology, specifically to an oil suction pipe and an oil cooling system, an electric drive system, an engine, and a vehicle having the oil suction pipe. Background Technology

[0002] Oil cooling systems are widely used in automotive engines, automatic transmissions, hybrid transmissions, and electric drive systems to lubricate and cool critical components of the vehicle. The oil pan stores oil, and a pump draws this oil from the pan via a suction pipe, then distributes it through the main oil circuit to the distribution circuit to lubricate and cool the target components. In related technologies, the suction pipe is typically made of nylon plastic injection-molded tubing. While the suction port of the injection-molded pipe can be adjusted to some extent with the tilt of the oil pan during driving, the adjustment range is limited. In extreme cases, the suction port may still be higher than the fluid level, at which point the suction pipe may be 100mm higher than the fluid level. ， Inability to access the oil can lead to cavitation problems in the cooling and lubrication system, for example, Figure 2 As shown in the diagram. Moreover, due to the limited swing range of the oil suction port, the depth of the oil pan and the amount of oil added are correspondingly increased. Utility Model Content

[0003] This invention aims to at least partially solve one of the technical problems in related technologies. To this end, embodiments of this invention provide an oil suction pipe. This oil suction pipe, while ensuring continuous oil supply, has the advantages of reducing the size of the oil pan and decreasing the total amount of oil added.

[0004] An embodiment of this utility model also proposes an oil cooling system.

[0005] An embodiment of this utility model also proposes an electric drive system.

[0006] An embodiment of this utility model also proposes an engine.

[0007] An embodiment of this utility model also proposes a vehicle.

[0008] The oil suction pipe of this utility model embodiment includes a suction pipe seat, a flexible pipe, and a mass block.

[0009] One end of the flexible tube is connected to the suction tube seat, and the mass block is disposed on the other end of the flexible tube. That is, the free end of the flexible tube is connected to the mass block.

[0010] This embodiment of the utility model features an oil suction pipe with a flexible tube connected to the suction pipe seat. Under the weight of a mass block, the oil inlet of the flexible tube adaptively adjusts with the liquid level. Specifically, the oil inlet swings in the direction of the oil level in the oil pan, ensuring it remains within the oil surface and guaranteeing continuous oil supply. This prevents interruptions in oil supply under extreme conditions, allowing vehicles to operate on uneven and complex road surfaces for extended periods. Furthermore, because the inlet swings in the direction of the oil level in the oil pan, it prevents cavitation and eliminates the need for a deep oil pan, thus reducing the required oil filling volume. This contributes to reducing the size of the oil pan and the total oil filling volume.

[0011] Therefore, the oil suction pipe of this utility model embodiment has the advantages of reducing the size of the oil pan and reducing the total amount of oil added, while ensuring the continuity of oil supply.

[0012] In some embodiments, the mass block is provided with an oil inlet hole, which is connected to the flexible tube, and the flexible tube is sleeved on the mass block.

[0013] In some embodiments, the mass block is tubular, with the inner peripheral wall of the tubular mass block forming the oil inlet hole, a portion of the mass block being fitted onto the flexible tube, and another portion of the mass block extending out of the flexible tube.

[0014] In some embodiments, the mass block includes a connecting pipe section and a sphere having the oil inlet, the connecting pipe section being disposed on the side of the sphere opposite to the oil inlet, and the connecting pipe section being connected to the other end of the flexible tube.

[0015] In some embodiments, the flexible tube is a flexible elastic tube.

[0016] In some embodiments, the mass block and the flexible tube meet the following requirements:

[0017]

[0018] Where Δ is the displacement of the mass block; E is the elastic modulus; L is the length of the flexible tube; l is the moment of inertia; m is the mass of the mass block; g is the gravitational acceleration; θ is the tilt angle of the oil pan, m is 0.2 kg to 0.4 kg, and L is 50 mm to 100 mm.

[0019] In some embodiments, the suction tube seat includes a seat body and a fixing part. The seat body has a tube seat channel and a connector end. The connector end is connected to one end of the flexible tube, and the tube seat channel communicates with the flexible tube. The tube seat channel has one of a limiting protrusion and a limiting groove. The fixing part has the other of the limiting protrusion and the limiting groove. The limiting protrusion is engaged in the limiting groove.

[0020] The oil cooling system of this utility model embodiment includes an oil pan and an oil suction pipe according to any one of the above-mentioned methods, wherein the mass block extends into the oil liquid inside the oil pan.

[0021] The electric drive system of this utility model embodiment includes the oil cooling system as described above.

[0022] The engine of this embodiment includes the oil cooling system as described above.

[0023] The vehicle of this utility model embodiment includes the electric drive system and / or the engine as described above. Attached Figure Description

[0024] Figure 1 This is a partial layout diagram of the oil cooling system according to an embodiment of the present invention.

[0025] Figure 2 This is a partial layout diagram of an oil cooling system in related technologies, with a vehicle traveling on a slope.

[0026] Figure 3 This is a partial layout diagram of the oil cooling system according to an embodiment of the present invention, with the vehicle traveling on a slope.

[0027] Figure 4 This is a front view of the oil suction pipe according to an embodiment of the present invention.

[0028] Figure 5 This is a side view of the oil suction pipe according to an embodiment of the present invention.

[0029] Figure 6 This is a top view of the oil suction pipe according to an embodiment of the present invention.

[0030] Figure 7 This is a diagram showing the fit between the oil suction pipe and the oil pan in an embodiment of this utility model, with the vehicle traveling on a flat road surface.

[0031] Figure 8 This is a diagram showing the fit between the oil suction pipe and the oil pan in an embodiment of this utility model, with the vehicle traveling on a slope.

[0032] Figure label:

[0033] Oil suction pipe 100; oil pan 200; oil level 201;

[0034] Pump body 300; Filter 400;

[0035] 1. Suction tube seat; 11. Seat body; 111. Limiting groove; 12. Fixing part; 121.

[0036] Flexible tube 2;

[0037] Mass block 3; oil inlet hole 31. Detailed Implementation

[0038] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0039] The following is for reference. Figure 1 , Figures 3 to 8 This invention describes an embodiment of an oil suction pipe 100, an oil cooling system, an electric drive system, an engine, and a vehicle.

[0040] The oil suction pipe 100 of this utility model embodiment includes a suction pipe seat 1, a flexible pipe 2, and a mass block 3.

[0041] One end of the flexible tube 2 (e.g.) Figure 5 The upper end shown is connected to the suction tube seat 1, and the mass block 3 is set at the other end of the flexible tube 2 (as shown). Figure 5 (as shown at the lower end). That is, the free end of the flexible tube 2 is connected to the mass block 3.

[0042] The oil suction pipe 100 of this embodiment features a flexible pipe 2 connected to the suction pipe seat 1. Under the weight of the mass block 3, the oil inlet of the flexible pipe 2 adaptively adjusts with the liquid level. Specifically, the oil inlet of the suction pipe 100 swings in the direction of the oil level 201 within the oil pan 200, ensuring the inlet remains within the oil level 201 and guaranteeing continuous oil supply. This prevents interruptions in oil supply under various extreme conditions, allowing vehicles to operate on uneven and complex road surfaces for extended periods. Furthermore, because the inlet swings in the direction of the oil level 201 within the oil pan 200, it prevents the oil from being sucked into the system, eliminates the need for a deeper oil pan 200, and appropriately reduces the amount of oil needed. This, in turn, helps to reduce the size of the oil pan 200 and the total amount of oil added.

[0043] Therefore, the oil suction pipe 100 of this utility model embodiment has the advantages of reducing the size of the oil pan 200 and reducing the total amount of oil added while ensuring the continuity of oil supply.

[0044] like Figures 4 to 8 As shown, the mass block 3 has an oil inlet hole 31, which is connected to the flexible tube 2, and the flexible tube 2 is sleeved on the mass block 3. That is to say, the oil inlet of the oil suction pipe 100 is formed on the mass block 3.

[0045] The oil suction pipe 100 of this embodiment of the utility model has an oil inlet hole 31 on the mass block 3, and the flexible pipe 2 is sleeved on the mass block 3. Under the action of the mass block 3, the oil inlet hole 31 corresponds to the oil inlet, which helps to place the oil inlet at the lowest position. At this time, it can further avoid the problem of air suction in the oil suction pipe 100 under extreme slopes.

[0046] Optionally, the port of the oil inlet 31 of the mass block 3 can be located at the bottom of the mass block 3, and the oil inlet is always aligned with the oil depth. This prevents the oil from being sucked into the cavitation pipe 100 under extreme slopes, further avoiding the problem of cavitation, and also helps to further reduce the amount of oil added.

[0047] like Figure 7 and Figure 8 As shown, the mass block 3 is tubular, and the inner peripheral wall of the tubular mass block 3 forms an oil inlet hole 31. A part of the mass block 3 is fitted onto the flexible tube 2, and the other part of the mass block 3 extends out of the flexible tube 2.

[0048] The oil suction pipe 100 of this embodiment of the invention, by setting the mass block 3 in a tubular shape, facilitates installation and sealing with the flexible pipe 2. This allows the oil suction pipe 100 to dynamically adapt to the oil level in the oil pan 200, meeting the required oil immersion depth on both flat and sloping road surfaces, further preventing cavitation problems in the cooling and lubrication system. Furthermore, extending another portion of the mass block 3 outside the flexible pipe 2 ensures a low center of gravity, contributing to improved flexibility in the swinging motion of the oil suction pipe 100.

[0049] This utility model embodiment is not limited to this. For example, in other embodiments, the mass block 3 includes a connecting pipe section and a spherical body. The spherical body has an oil inlet hole 31, and the connecting pipe section is disposed on the side of the spherical body opposite to the oil inlet hole 31. Thus, the oil suction pipe 100 has the advantages of simple structure and high ease of installation.

[0050] The flexible tube 2 is a flexible elastic tube. In this embodiment of the invention, the oil suction pipe 100, by setting the flexible tube 2 as a flexible elastic tube, allows the length of the flexible elastic tube to be adaptively increased under various extreme working conditions. This further avoids the problem of air suction in the oil suction pipe 100 under extreme slopes, improving the stability of the continuous oil supply.

[0051] Optionally, the flexible elastic tube can be a rubber tube. Rubber tubes offer advantages such as high elasticity, high strength, and good tear resistance. Further, the flexible elastic tube can be a rubber corrugated tube. The rubber corrugated tube allows for increased length without changing the inner diameter of the flexible tube 2, thus not affecting the flow rate of oil within the oil suction pipe 100. On sloping roads, the flexible elastic tube can extend and retract axially, and also rotate left, right, forward, and backward, offering a high degree of relative freedom.

[0052] The following requirements must be met between mass block 3 and flexible tube 2:

[0053]

[0054] Where Δ is the displacement of mass block 3; E is the elastic modulus; L is the length of flexible tube 2; l is the moment of inertia; m is the mass of mass block 3; g is the gravitational acceleration; θ is the tilt angle of oil pan 200, m is 0.2 kg to 0.4 kg, and L is 50 mm to 100 mm.

[0055] The oil suction pipe 100 of this embodiment meets the corresponding requirements by limiting the mass block 3 and the flexible pipe 2. This ensures that the oil suction port does not contact the bottom of the housing, and that rotation in the left, right, forward, and backward directions meets the required angles. When the vehicle is in a horizontal, uphill, downhill, or tilted position, the soft rubber pipe deforms under gravity, following the changes in the oil level in the oil pan 200. The oil inlet also adjusts with the oil level, increasing the oil immersion depth at the inlet.

[0056] Optionally, m can be 0.20kg, 0.22kg, 0.24kg, 0.26kg, 0.28kg, 0.30kg, 0.32kg, 0.34kg, 0.36kg, 0.38kg, or 0.4kg.

[0057] Optionally, L can be 50mm, 55mm, 60mm, 65mm, 70mm, 75mm, 80mm, 85mm, 80mm, 95mm or 100mm.

[0058] like Figure 4 and Figure 6 As shown, the suction tube holder 1 includes a seat body 11 and a fixing part 12. The seat body 11 has a tube seat channel and a connector end, and the connector end is connected to one end of the flexible tube 2 (e.g., Figure 5 The upper end shown is connected, and the tube seat channel communicates with the flexible tube 2. The tube seat channel has one of a limiting protrusion and a limiting groove 111, and the fixing part 12 has the other of a limiting protrusion 121 and a limiting groove. The limiting protrusion 121 is engaged in the limiting groove 111. In other words, the fixing part 12 has a limiting protrusion 121, and the seat 11 has a limiting groove 111; or, the fixing part 12 has a limiting groove 111, and the seat 11 has a limiting protrusion 121.

[0059] The oil suction tube 100 of this embodiment divides the suction tube seat 1 into a seat body 11 and a fixing part 12. The fixing part 12 facilitates the installation of the suction tube seat 1 onto other components. Therefore, the oil suction tube 100 has the advantage of high ease of installation.

[0060] Furthermore, the base 11 is an L-shaped bend, and the lower end of the bend is connected to the flexible tube 2.

[0061] The oil cooling system of this utility model embodiment includes an oil pan 200 and an oil suction pipe 100 according to any one of the above, with a mass block 3 extending into the oil in the oil pan 200.

[0062] Therefore, the oil cooling system of this utility model embodiment has the advantages of reducing the size of the oil pan 200 and reducing the total amount of oil added, while ensuring the continuity of oil supply.

[0063] Furthermore, the oil cooling system of this embodiment also includes a cooling module, an oil return pipe, an oil inlet pipe, and a pump body 300. The oil output end of the cooling module is used to cool and lubricate the parts to be cooled. For example, the parts to be cooled can be the stator and rotor of a drive motor. Along the direction of oil flow, the oil pan 200, the oil inlet pipe, the cooling module, the oil return pipe, and the oil pan 200 are sequentially connected in a circulating manner, and the pump body 300 is installed on the oil inlet pipe.

[0064] Furthermore, a filter 400 is installed on the oil inlet pipe.

[0065] The electric drive system of this utility model embodiment includes the oil cooling system described above.

[0066] Therefore, the electric drive system of this utility model embodiment has the advantages of reducing the size of the oil pan 200 and reducing the total amount of oil added, while ensuring the continuity of oil supply.

[0067] The engine of this embodiment includes the oil cooling system as described above.

[0068] Therefore, the engine of this utility model embodiment has the advantages of reducing the size of the oil pan 200 and reducing the total amount of oil added, while ensuring the continuity of oil supply.

[0069] The vehicle of this utility model embodiment includes the electric drive system according to the above description and / or the engine according to the above description.

[0070] Specifically, the vehicle can be an electric vehicle, a gasoline vehicle, or a hybrid electric vehicle.

[0071] Because the vehicle in this embodiment of the invention includes the oil suction pipe 100, it has the advantages of reducing the size of the oil pan 200 and reducing the total amount of oil added, while ensuring continuous oil supply.

[0072] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to 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 utility model.

[0073] Furthermore, 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 indicated technical features. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this utility model, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0074] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0075] In this utility model, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0076] In this utility model, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to a specific feature, structure, material, or characteristic described in connection with that embodiment or example, which is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0077] Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of the present invention.

Claims

1. An oil suction pipe, characterized in that, include: A suction tube holder and a flexible tube, one end of which is connected to the suction tube holder; A mass block is disposed on the other end of the flexible tube. The mass block has an oil inlet hole that communicates with the flexible tube. The flexible tube is sleeved on the mass block. The mass block is tubular, and the inner peripheral wall of the tubular mass block forms the oil inlet hole. A portion of the mass block is fitted onto the flexible tube, and another portion of the mass block extends out of the flexible tube; or, the mass block includes a connecting pipe section and a spherical body, the spherical body having the oil inlet hole, the connecting pipe section being disposed on the side of the spherical body opposite to the oil inlet hole, and the connecting pipe section being connected to the other end of the flexible tube.

2. The oil suction pipe according to claim 1, characterized in that, The flexible tube is a flexible elastic tube.

3. The oil suction pipe according to claim 2, characterized in that, The mass block and the flexible tube must meet the following requirements: Where Δ is the displacement of the mass block; E is the elastic modulus; L is the length of the flexible tube; l is the moment of inertia; m is the mass of the mass block; g is the gravitational acceleration; θ is the tilt angle of the oil pan, m is 0.2 kg to 0.4 kg, and L is 50 mm to 100 mm.

4. The oil suction pipe according to claim 1, characterized in that, The suction tube seat includes a seat body and a fixing part. The seat body has a tube seat channel and a connector end. The connector end is connected to one end of the flexible tube, and the tube seat channel communicates with the flexible tube. The tube seat channel has one of a limiting protrusion and a limiting groove. The fixing part has the other of the limiting protrusion and the limiting groove. The limiting protrusion is engaged in the limiting groove.

5. An oil cooling system, characterized in that, It includes an oil pan and an oil suction pipe according to any one of claims 1-4, wherein the mass block extends into the oil liquid inside the oil pan.

6. An electric drive system, characterized in that, The electric drive system includes the oil cooling system as described in claim 5.

7. An engine, characterized in that, The engine includes the oil cooling system as described in claim 5.

8. A vehicle, characterized in that, Includes the electric drive system as described in claim 6 and / or the engine as described in claim 7.

Images