Automobile electronic oil pump capable of achieving double oil outlets through one vane pump

Abstract

The utility model discloses an automobile electronic oil pump capable of realizing double oil outlets by one vane pump, which belongs to the technical field of automobile parts and comprises a motor assembly, an end cover is mounted at the top of the motor assembly, a first oil outlet and a second oil outlet are respectively arranged at two ends of the top of the end cover, and a rotating shaft is mounted at a power output end of the motor assembly. A rotor assembly is installed on the outer side of the rotating shaft, a special-shaped stator is connected to the outer side of the rotor assembly in a sleeving mode, an oil distributor is installed on the top of the rotor assembly, and a first volume cavity and a second volume cavity are formed in gaps between the rotor assembly and the special-shaped stator respectively. The oil distributor, the rotor assembly, the special-shaped stator, the motor assembly, the rotating shaft, the first oil outlet, the second oil outlet, the first volume cavity and the second volume cavity are arranged in a matched mode, one motor can drive one oil pump to output two different pressures and flows, compared with the design that two oil pumps are needed in the same type, the use number of electronic oil pumps can be reduced, and the cost is reduced. The utilization rate of the oil pump is maximized, and energy waste is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive components, and in particular to an automotive electronic oil pump that uses a single vane pump to achieve dual oil outlets. Background Technology

[0002] Electronic oil pumps are widely used in gasoline vehicles, hybrid vehicles, and pure electric passenger vehicles, mainly in hybrid transmissions and thermal management of pure electric and hybrid vehicles.

[0003] When used in transmissions, a motor and a rotor pump or gear pump are typically used, but there is only one oil outlet. The pressure of each stage of the oil circuit is different, so the oil pump pressure is always at the maximum pressure. The displacement of the oil pump needs to be designed to be large, which also results in the maximum energy loss. Alternatively, a motor can be connected in series with two rotor pumps or gear pumps to achieve dual oil outlets to meet customer needs. However, this design structure is relatively complex, requires sufficient axial space, and has many additional parts, which increases the cost and design difficulty. Based on this, we propose an automotive electronic oil pump that achieves dual oil outlets with a single vane pump. Utility Model Content

[0004] To address the aforementioned issues when used in transmissions, where a single motor and a rotor pump or gear pump are typically employed, resulting in only one oil outlet and maximizing energy loss, or a single motor connected in series with two rotor pumps or gear pumps to achieve dual oil outlets, this design is complex, increasing cost and design difficulty. This invention provides an automotive electronic oil pump that achieves dual oil outlets with a single vane pump.

[0005] This utility model provides an automotive electronic oil pump that achieves dual oil outlets with a single vane pump, employing the following technical solution:

[0006] An automotive electronic oil pump with a single vane pump achieving dual oil outlets includes a motor assembly. An end cover is mounted on the top of the motor assembly, with an oil outlet (first outlet) and an oil outlet (second outlet) respectively opened at both ends of the top of the end cover. A rotating shaft is mounted on the power output end of the motor assembly, and a rotor assembly is mounted on the outer side of the rotating shaft. A shaped stator is sleeved on the outer side of the rotor assembly, and the shaped stator is connected to the motor assembly via a locating pin. An oil distribution plate is mounted on the top of the rotor assembly, and two volumetric cavities (first and second) are respectively provided in the gap between the rotor assembly and the shaped stator.

[0007] By adopting the above technical solution, the motor assembly is started. When the motor assembly is working, it drives the rotor assembly to rotate through the shaft, so that the blades of the rotor assembly are always in contact with the inner wall of the irregular stator. When the oil pump rotates, it generates a vacuum, draws in low-pressure oil, compresses the low-pressure oil into high-pressure oil, and outputs it to the customer's end. The oil enters the interior of oil outlet one and oil outlet two through the oil distributor and is discharged. The pressure on both sides of oil outlet one and oil outlet two can be different. The customer can adjust it according to different actual usage scenarios. By adjusting the height values ​​of volume chamber one and volume chamber two on both sides of the irregular stator, different displacement sizes can be adjusted respectively. Thus, one motor can drive one oil pump to output two different pressures and flow rates of oil. Compared with the design of the same type that requires two oil pumps, it can reduce the number of electronic oil pumps used by the customer, maximize the utilization rate of oil pumps, and avoid energy waste.

[0008] Optionally, an O-ring is provided at the top of both oil outlet one and oil outlet two.

[0009] By adopting the above technical solution and setting the O-ring, the sealing performance of the oil outlet 1 and oil outlet 2 when connected to the fuel line is increased, thus minimizing the possibility of oil leakage.

[0010] Optionally, the two ends of the oil distribution plate are respectively provided with an oil outlet groove one and an oil outlet groove two, the oil outlet groove one being connected to an oil outlet one, and the oil outlet groove two being connected to an oil outlet two.

[0011] By adopting the above technical solution, the oil can be fed into oil outlet 1 and oil outlet 2 through oil outlet tank 1 and oil outlet tank 2 respectively, outputting two different pressures and flow rates.

[0012] Optionally, a sealing ring is provided between the top of the oil separator and the inner bottom wall of the end cap.

[0013] By adopting the above technical solution, the main function of the sealing ring is to prevent high-pressure oil and low-pressure oil from connecting, thus ensuring the normal operation of the oil pump.

[0014] Optionally, the end cap, sealing ring, and oil distribution plate are connected by several bolts.

[0015] By adopting the above technical solution, the end cap, sealing ring and oil distributor can be fixedly connected by bolts.

[0016] Optionally, the rotor assembly includes a rotor sleeved on the outside of the rotating shaft. The rotor has a plurality of blade slots evenly spaced around its periphery, and blades are slidably connected inside each of the blade slots. The end of each blade away from the center of the rotor contacts the inner curved surface of the irregular stator.

[0017] By adopting the above technical solution, when the rotating shaft drives the rotor to rotate, the blades slide inside the blade slots, so that the blades are always in contact with the inner curved surface of the irregular stator. As the rotor rotates continuously, the oil suction and discharge work is completed.

[0018] In summary, this utility model has at least one of the following beneficial effects:

[0019] By coordinating the oil distribution plate, rotor assembly, irregular stator, motor assembly, shaft, oil outlet one, oil outlet two, volumetric chamber one, and volumetric chamber two, one motor can drive one oil pump to output two different pressures and flow rates. Compared with similar designs that require two oil pumps, this reduces the number of electronic oil pumps needed by customers, maximizes oil pump utilization, and avoids energy waste. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model 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 only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a cross-sectional structural diagram of the present invention;

[0022] Figure 2 This is a schematic diagram of the rotor assembly structure of this utility model;

[0023] Figure 3 This is a schematic diagram of the stator and rotor connection structure of this utility model.

[0024] In the diagram: 1. Bolt; 2. O-ring; 3. End cap; 4. Sealing ring; 5. Oil distributor plate; 6. Rotor assembly; 601. Rotor; 602. Blade slot; 603. Blade; 7. Irregular stator; 8. Motor assembly; 9. Shaft; 10. Oil outlet one; 11. Oil outlet groove one; 12. Oil outlet two; 13. Oil outlet groove two; 14. Volume chamber one; 15. Volume chamber two. Detailed Implementation

[0025] The following is in conjunction with the appendix Figures 1-3 The present invention will be described in further detail below.

[0026] Please refer to the attached diagram in the instruction manual. Figure 1This utility model provides an embodiment of an automotive electronic fuel pump with a single vane pump achieving dual fuel outlets. It includes a motor assembly 8, with an end cover 3 mounted on the top of the motor assembly 8. The end cover 3 has a first fuel outlet 10 and a second fuel outlet 12 at its two ends. Both the first fuel outlet 10 and the second fuel outlet 12 have O-rings 2 on their tops. The O-rings 2 enhance the sealing when the first fuel outlet 10 and the second fuel outlet 12 are connected to the fuel line, minimizing the possibility of fuel leakage.

[0027] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 2 A rotating shaft 9 is fixedly mounted on the power output end of the motor assembly 8. A rotor assembly 6 is mounted on the outside of the rotating shaft 9. A shaped stator 7 is sleeved on the outside of the rotor assembly 6, and the shaped stator 7 is connected to the motor assembly 8 through a locating pin. The rotor assembly 6 includes a rotor 601, which is fixedly sleeved on the outside of the rotating shaft 9. Several blade slots 602 are evenly spaced on the periphery of the rotor 601. Blades 603 are slidably connected inside each of the blade slots 602. The end of the blade 603 away from the center of the rotor 601 contacts the inner curved surface of the shaped stator 7. When the rotating shaft 9 drives the rotor 601 to rotate, the blades 603 slide inside the blade slots 602, so that the blades 603 are always in contact with the inner curved surface of the shaped stator 7. As the rotor 601 rotates continuously, the oil suction and discharge work is completed.

[0028] Please refer to the attached diagram in the instruction manual. Figure 1 The rotor assembly 6 has an oil distributor 5 mounted on its top. The oil distributor 5 has an oil outlet groove 11 and an oil outlet groove 2 13 at its two ends. The oil outlet groove 11 is connected to the oil outlet 10, and the oil outlet groove 2 13 is connected to the oil outlet 2 12. This allows oil to be directed through the oil outlet groove 11 and the oil outlet groove 2 13 into the oil outlet 10 and the oil outlet 2 12 respectively, resulting in two different pressures and flow rates.

[0029] Please refer to the attached diagram in the instruction manual. Figure 1 and Figure 3 A sealing ring 4 is provided between the top of the oil distributor 5 and the inner bottom wall of the end cover 3. The main function of the sealing ring 4 is to prevent oil from leaking from inside the electronic oil pump to the outside, ensuring the normal operation of the oil pump. The end cover 3, the sealing ring 4, and the oil distributor 5 are connected by several bolts 1. Thus, the end cover 3, the sealing ring 4, and the oil distributor 5 can be fixedly connected by the bolts 1. Volumetric cavity 14 and volumetric cavity 15 are respectively provided in the gap between the rotor assembly 6 and the irregular stator 7.

[0030] Working principle: During use, oil is discharged from the corresponding areas through oil outlet 10 and oil outlet 12 respectively. The motor assembly 8 is started, and when the motor assembly 8 is working, it drives the rotor 601 to rotate via the rotating shaft 9. The rotation of the rotor 601 causes the blades 603 to slide inside the blade slots 602, thus ensuring that the ends of the blades 603 are always in contact with the inner wall of the irregular stator 7. The rotation of the oil pump generates a vacuum, drawing in low-pressure oil and compressing it into high-pressure oil for output to the customer. The oil enters the interior of oil outlet 10 through the oil outlet groove 11 on the oil distributor 5 and is then output. Oil from the second oil outlet 13 on the oil pan 5 enters the interior of the second oil outlet 12 and outputs the oil. The pressure on both sides of the first oil outlet 10 and the second oil outlet 12 can be different. Customers can adjust them according to different actual usage scenarios. By adjusting the height values ​​of the first volume chamber 14 and the second volume chamber 15 on both sides of the irregular stator 7, different displacement sizes can be adjusted respectively. This allows one motor to drive one oil pump and output two different pressures and flow rates of oil. Compared with similar designs that require two oil pumps, this reduces the number of electronic oil pumps used by customers, maximizes the utilization rate of oil pumps, and avoids energy waste.

[0031] The above are all preferred embodiments of this utility model, and are not intended to limit the scope of protection of this utility model. Therefore, all equivalent changes made to the structure, shape and principle of this utility model should be covered within the scope of protection of this utility model.

Claims

1. A kind of automobile electronic oil pump of double oil outlet is realized by one vane pump, comprising motor assembly (8), it is characterized in that: The top of the motor assembly (8) is provided with an end cover (3), the top of the end cover (3) is provided with an oil outlet one (10) and an oil outlet two (12), the power output end of the motor assembly (8) is provided with a rotating shaft (9), the outer side of the rotating shaft (9) is provided with a rotor assembly (6), the outer side of the rotor assembly (6) is sleeved with a special-shaped stator (7), and the special-shaped stator (7) is connected with the motor assembly (8) through a positioning pin, the top of the rotor assembly (6) is provided with an oil distribution disc (5), and the gap between the rotor assembly (6) and the special-shaped stator (7) is provided with a volume cavity one (14) and a volume cavity two (15).

2. The automobile electronic oil pump of claim 1, wherein: The top of the oil outlet one (10) and the oil outlet two (12) is provided with an O-shaped ring (2).

3. The automobile electronic oil pump of claim 1, wherein: The two ends of the oil distribution disc (5) are provided with an oil outlet groove one (11) and an oil outlet groove two (13), the oil outlet groove one (11) is communicated with the oil outlet one (10), and the oil outlet groove two (13) is communicated with the oil outlet two (12).

4. The automobile electronic oil pump of claim 1, wherein: The top of the oil distribution disc (5) and the inner bottom wall of the end cover (3) are provided with a sealing ring (4).

5. The automobile electronic oil pump of claim 4, wherein: The end cover (3), the sealing ring (4) and the oil distribution disc (5) are connected through a plurality of bolts (1).

6. The automobile electronic oil pump of claim 1, wherein: The rotor assembly (6) comprises a rotor (601), the rotor (601) is sleeved on the outer side of the rotating shaft (9), a plurality of blade grooves (602) are equidistantly formed on the periphery of the rotor (601), a plurality of blades (603) are slidably connected in the blade grooves (602), and the end, away from the center of the rotor (601), of the blade (603) is in contact with the inner curved surface of the special-shaped stator (7).

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