Centralized oil pump shell structure

Abstract

The utility model relates to the technical field of vehicle-mounted oil pumps. A centralized oil pump shell structure comprises an oil pump shell which is integrally machined and formed, an inner rotor and an outer rotor are arranged at the bottom in the oil pump shell, a driving shaft is arranged in the inner rotor, and the inner rotor and the outer rotor are both installed in the axial direction; an oil inlet and an oil outlet are formed in the bottom of the oil pump shell, the oil inlet and the oil outlet are formed in the radial direction, the oil inlet and the oil outlet are communicated with the inner rotor and the outer rotor, and the top of the oil pump shell is further provided with a connector and a waterproof breathable film which extend in the same direction as the motor. The utility model provides a centralized oil pump shell structure which is compact in structure, capable of controlling the size of a motor, high in integrity of a motor shell, good in sealing performance of an oil inlet and an oil outlet, long in service life and convenient to assemble and maintain. The technical problems that in the prior art, an existing vehicle-mounted motor is single in structure, the overall layout and size are not improved, the stability is poor when the whole motor works, and assembling and maintaining are not convenient are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of vehicle-mounted oil pumps, and in particular to a centralized oil pump housing structure. Background Art

[0002] Electronic oil pumps are installed on new energy or traditional automobile engines and are used in the cooling system to provide circulation power for the cooling oil. Traditional oil pumps are directly connected to the engine and provide power through the rotation of the engine. Their speed is proportional to the engine and cannot flexibly adjust the oil flow according to the actual temperature and other factors. They cannot be accurately controlled and are therefore gradually being eliminated.

[0003] The current mainstream electronic oil pump uses an independent motor to provide power, and uses an integrated controller and several high-precision sensors for precise control. It can not only provide different speeds and flows according to different working conditions, but also protect the oil pump in time under some abnormal conditions (overload, overtemperature, stall, etc.).

[0004] Based on the current development trend of miniaturization, high power and high integration of electronic actuators, how to reduce product size and increase product stability while meeting the needs of the entire vehicle is a problem that needs to be solved urgently, so there is a need for improvement. Summary of the invention

[0005] The present invention provides a centralized oil pump housing structure with a compact structure, which can control the size of the motor, increase the working stability of the motor, have high integrity of the motor housing, good sealing at the oil inlet and outlet, long service life, and is easy to assemble and maintain; it solves the technical problems in the prior art that the current vehicle-mounted motor has a single structure, the overall layout and volume have not been improved, the overall stability of the motor is poor during operation, and it is not easy to assemble and maintain.

[0006] The above technical problems of the present invention are solved by the following technical solutions: a centralized oil pump housing structure, including an oil pump housing formed as an integral part, an inner and outer rotor are provided at the bottom of the oil pump housing, a drive shaft is provided in the inner rotor, and the inner and outer rotors are both installed in the axial direction; an oil inlet and an oil outlet are provided at the bottom of the oil pump housing, the oil inlet and the oil outlet are opened in the radial direction, the angle between the oil inlet and the oil outlet and the drive shaft is 90 degrees, and the oil inlet and the oil outlet are both connected to the inner and outer rotors, and a connector and a waterproof breathable membrane extending in the same direction as the motor are also provided on the top of the oil pump housing. The utility model adjusts the oil inlet and outlet that were originally in the same direction (axial direction) as the inner and outer rotors by 90 degrees and changes them to a radial direction. The oil inlet and outlet in the utility model can be integrally formed with the oil pump housing. The assembly surface and the sealing surface can be separated during installation. If problems occur with the inner and outer rotors, they can be repaired separately. Secondly, the overall sealing is good, which can reduce oil leakage. The connector in the utility model is installed on the oil pump housing, and the waterproof and breathable membrane and the connector have the same extension direction as the oil pump housing. On the one hand, the overall volume can be controlled, and damage to the connector during transportation can be avoided. On the other hand, the integrity of the controller cover is ensured.

[0007] Preferably, the oil pump housing has a mating surface integrally formed at the oil inlet and the oil outlet, and the oil inlet and the oil outlet are provided on the mating surface. The mating surface, the oil inlet and the oil outlet in the utility model can be integrally formed with the oil pump housing, and the assembly surface and the sealing surface can be separated during installation, so that the overall sealing is good and oil leakage can be reduced.

[0008] Preferably, sealing rings are embedded on the outer sides of the oil inlet and the oil outlet on the mating surface. The two sealing rings are embedded and installed on the outer sides of the oil inlet and the oil outlet to ensure the sealing effect during mating.

[0009] Preferably, a plurality of mounting holes are provided on both sides of the mating surface, and during installation, the sealing surface can be fixed by the mounting holes and bolts on the mating surface.

[0010] Preferably, the mating surface is provided with a plurality of positioning holes on both sides, and the positioning holes are used to install positioning pins. During installation, positioning pins are pre-installed in the positioning holes on the mating surface, and the positioning pins and the mating surface cooperate with the mating structure for alignment installation.

[0011] Preferably, the waterproof breathable membrane and the connector are both extended downward. The connector in the utility model is installed on the oil pump housing, and the waterproof breathable membrane and the connector are in the same extension direction as the oil pump housing. On the one hand, the overall volume can be controlled and damage to the connector during transportation can be avoided. On the other hand, there is no need to open a hole on the controller cover, which ensures the integrity of the controller cover.

[0012] Preferably, a controller cover is provided on the top of the oil pump housing, and a plurality of heat dissipation fins are integrally formed on the controller cover. The heat dissipation fins on the surface of the controller cover are integrally formed with the controller cover, which can increase the heat dissipation effect of the controller cover during operation.

[0013] Preferably, a sealing cover plate is installed at the bottom of the oil pump housing. The utility model adjusts the oil inlet and outlet, which are originally in the same direction (axial direction) as the inner and outer rotors, by 90 degrees to the radial direction, and adds a sealing cover plate at the position of the original oil inlet and outlet. The mating surface and the oil inlet and outlet in the utility model can be integrally processed and formed with the oil pump housing, and the assembly surface and the sealing surface can be separated during installation. If the inner and outer rotors need to be repaired, the sealing cover plate can be removed and repaired separately.

[0014] Therefore, a centralized oil pump housing structure of the present invention has the following advantages: compact structure, can control the motor volume, increase the working stability of the motor, can separate the assembly surface and the sealing surface, the motor housing has high integrity, the sealing at the oil inlet and outlet is good, the service life is long, and it is easy to assemble and maintain. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The utility model is a three-dimensional structural schematic diagram of a centralized oil pump housing structure.

[0016] Figure 2 yes Figure 1 Schematic diagram of the main structure.

[0017] Figure 3 yes Figure 1 Schematic diagram of the top view structure.

[0018] Figure 4 yes Figure 1 Schematic diagram of the structure viewed from above.

[0019] Figure 5 yes Figure 1 Schematic diagram of the left-side sectional structure.

[0020] In the figure, there are an oil pump housing 1, a controller cover 2, a heat dissipation fin 3, a waterproof breathable membrane 4, a connector 5, a mating surface 6, an oil inlet 7, an oil outlet 8, a sealing ring 9, a mounting hole 10, a positioning hole 11, and a sealing cover 12. DETAILED DESCRIPTION

[0021] The technical solution of the invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0022] Example:

[0023] like Figure 1 and 2As shown in Figures 3, 4 and 5, a centralized oil pump housing structure includes an oil pump housing 1 that is integrally formed, a controller cover 2 is installed on the top of the oil pump housing 1, and a plurality of upwardly protruding heat dissipation fins 3 are integrally formed on the controller cover 2.

[0024] A waterproof and breathable membrane 4 structure extending downward is integrally formed on the top of the oil pump housing 1 , and a connector 5 extending downward is also installed on the top of the oil pump housing 1 .

[0025] The inner and outer rotors are installed at the bottom of the oil pump housing 1, and a drive shaft is installed in the middle of the inner rotor. The inner and outer rotors are installed in the axial direction. A mating surface 6 is integrally formed on one side of the bottom of the oil pump housing 1, and an oil inlet 7 and an oil outlet 8 are symmetrically opened in the middle of the mating surface 6. The oil inlet 7 and the oil outlet 8 are respectively connected to the two sides of the inner and outer rotors.

[0026] The oil inlet 7 and the oil outlet 8 are opened in the radial direction, and the angle between the oil inlet 7 and the oil outlet 8 and the drive shaft is 90 degrees.

[0027] Sealing rings 9 are embedded and installed on the outer sides of the oil inlet 7 and the oil outlet 8 on the mating surface 6 of the oil pump housing 1 .

[0028] Three mounting holes 10 and one positioning hole 11 are provided on both sides of the mating surface 6 of the oil pump housing 1 , and the positioning holes 11 are used to install positioning pins.

[0029] A sealing cover plate 12 may be installed at the bottom of the oil pump.

[0030] The utility model adjusts the oil inlet and outlet 8, which were originally in the same direction (axial direction) as the inner and outer rotors, by 90 degrees to a radial direction, and adds a sealing cover plate 12 at the position of the original oil inlet and outlet 8. The mating surface 6 and the oil inlet 7 and the oil outlet 8 in the utility model can be integrally formed with the oil pump housing 1, and the assembly surface and the sealing surface can be separated during installation. If the inner and outer rotors need to be repaired, the sealing cover plate 12 can be disassembled and repaired separately. Secondly, the overall sealing is good, which can reduce oil leakage.

[0031] During installation, a positioning pin is pre-installed in the positioning hole 11 on the matching surface 6, and the positioning pin and the matching surface 6 are matched with the matching structure for alignment installation, and then fixed by the bolt and the installation hole 10.

[0032] The connector 5 in the utility model is installed on the oil pump housing 1, and the waterproof breathable membrane 4 and the connector 5 have the same extension direction as the oil pump housing 1. On the one hand, the overall volume can be controlled and damage to the connector 5 and the like during transportation can be avoided. On the other hand, there is no need to open a hole on the controller cover 2, thereby ensuring the integrity of the controller cover 2.

Claims

1. A centralized oil pump housing structure, characterized in that: It includes an oil pump housing that is integrally formed, with inner and outer rotors provided at the bottom of the oil pump housing, a drive shaft provided in the inner rotor, and both the inner and outer rotors are installed in the axial direction; an oil inlet and an oil outlet are provided at the bottom of the oil pump housing, the oil inlet and the oil outlet are opened in the radial direction, the angle between the oil inlet and the oil outlet and the drive shaft is 90 degrees, and the oil inlet and the oil outlet are connected with the inner and outer rotors, and a connector and a waterproof breathable membrane extending in the same direction as the motor are also provided on the top of the oil pump housing.

2. A centralized oil pump housing structure according to claim 1, characterized in that: The oil inlet and the oil outlet of the oil pump housing are integrally formed with a matching surface, and the oil inlet and the oil outlet are arranged on the matching surface.

3. A centralized oil pump housing structure according to claim 2, characterized in that: Sealing rings are embedded on the outer sides of the oil inlet and the oil outlet on the matching surface.

4. A centralized oil pump housing structure according to claim 3, characterized in that: A plurality of mounting holes are provided on both sides of the matching surface.

5. A centralized oil pump housing structure according to claim 4, characterized in that: A plurality of positioning holes are provided on both sides of the mating surface, and positioning pins are installed in the positioning holes.

6. The centralized oil pump housing structure according to claim 1, characterized in that: The waterproof and breathable membrane and the connector both extend downward.

7. The centralized oil pump housing structure according to claim 1, characterized in that: A controller cover is provided on the top of the oil pump housing, and a plurality of heat dissipation fins are integrally formed on the controller cover.

8. The centralized oil pump housing structure according to claim 7, characterized in that: A sealing cover plate is installed at the bottom of the oil pump housing.

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