Integrated oil pump shell structure

Abstract

The utility model relates to the technical field of vehicle-mounted oil pumps, in particular to an integrated oil pump shell structure. An integrated oil pump shell structure comprises an oil pump shell integrally machined and formed, the oil pump shell comprises a fixed sealing structure at the top and an oil pump body structure at the bottom, the fixed sealing structure comprises an installation position at the top and a fixed sealing face, the middle of the fixed sealing face extends in the horizontal direction, and the oil pump body structure extends downwards from the middle. According to the integrated oil pump shell structure, installation is convenient, the shell is integrally machined and formed, the overall strength is high, the sealing performance is good, the integrated oil pump shell structure can adapt to oil pumps of different sizes, a motor can be cooled, work is stable, and the adaptation range is larger. The technical problems that in the prior art, most existing vehicle-mounted oil pump shells are split, many positioning and fixing structures are needed, installation is inconvenient, the sealing performance is difficult to guarantee, the shells are difficult to adapt to oil pumps of different sizes, and the strength and the operation stability of the shells are difficult to guarantee are solved.

Description

Technical Field

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

[0002] With the development of the economy, the automobile industry has developed rapidly. In addition to the current demands for automobile power, stability, etc., users also have higher requirements for automobile intelligence and comfort.

[0003] In order to ensure the cooling and lubrication of various engine components, an electronic oil pump is needed to provide power for the oil circulation. The electronic oil pump is powered by an internal motor to drive the impeller (inner and outer rotors) to drive the oil circulation to cool and lubricate related components. The function of the oil pump housing is to ensure the sealing and stability of the oil pump. However, the current oil pump housings are mostly split, which is not easy to install and difficult to match with pump bodies of different sizes. It is inconvenient to use and difficult to meet actual needs. Therefore, it is necessary to improve. Summary of the invention

[0004] The present invention provides an integrated oil pump housing structure which is easy to install, has an integral housing formed, has high overall strength, good sealing, can be adapted to oil pumps of different sizes, can cool the motor, has stable operation and a wider adaptability range; it solves the technical problems existing in the prior art that most of the current on-vehicle oil pump housings are split-type, require many positioning and fixing structures, are not easy to install, and are difficult to ensure sealing, and the housing is difficult to adapt to oil pumps of different sizes, and the strength of the housing and the operating stability are difficult to guarantee.

[0005] The above technical problems of the present invention are solved by the following technical solutions: an integrated oil pump housing structure, including an oil pump housing formed by an integrated machine, the oil pump housing includes a fixed sealing structure at the top and an oil pump main structure at the bottom, the fixed sealing structure includes a mounting position at the top and a fixed sealing surface extending horizontally in the middle, and the oil pump main structure extends downward from the middle. The oil pump housing is integrally matched and fixed on the client assembly, the oil pump housing is integrally formed, the overall strength is high, and the fixed sealing surface is separated from the oil pump main structure, which can make the oil pump main body run more stably and reduce the risk of leakage. The fixed sealing surface has a large area and can be adapted to oil pumps of different sizes according to customer needs, and has a wide range of applications.

[0006] Preferably, the installation position is formed by integral injection molding of the motor housing and the controller housing, a motor cavity is opened at the top of the installation position, a controller cover is provided at the top of the motor cavity, and the controller cover and the motor cavity are pressed into each other by interference fit. During installation, the motor is installed in the motor cavity, and the special-shaped controller cover is pressed into the top of the installation position by interference fit, and can be positioned by its own structure without the need for other fixing and positioning components.

[0007] Preferably, a cooling structure is provided in the installation position, and the cooling structure includes a cooling pipeline opened in the installation position, the top of the cooling pipeline is connected to the motor cavity, and the bottom of the cooling pipeline is connected to the oil pump main structure. The cooling pipeline is integrally injection molded on one side of the motor cavity. When working, a part of the oil in the oil pump body will enter the motor cavity from the bottom of the cooling pipeline to cool the internal motor.

[0008] Preferably, the cooling structure further comprises an oil outlet hole at the bottom of the motor cavity, and the oil outlet hole is connected to the main structure of the oil pump. When working, a part of the oil in the main body of the oil pump will enter the motor cavity from the bottom of the cooling pipeline to cool the internal motor, and the oil will then flow out through the oil outlet hole, and the oil circulation will cool the motor.

[0009] Preferably, a mounting cavity is reserved at the bottom of the mounting position. The mounting cavity is a space reserved during the injection molding of the oil pump housing, so that oil pumps of different sizes can be used when matched with the client.

[0010] Preferably, the bottom surface of the fixed sealing surface is provided with a sealing installation groove, in which a special-shaped sealing ring is installed to ensure the sealing between the oil pump housing and the client during installation.

[0011] Preferably, the edge of the fixed sealing surface is provided with a mounting hole, and the bottom of the fixed sealing surface is integrally formed with a plurality of positioning pins. During installation, the oil pump housing is fixed in position by the positioning pins, and the entire oil pump housing is fixed to the matching assembly by bolts in cooperation with the mounting holes.

[0012] Therefore, an integrated oil pump housing structure of the present invention has the following advantages: easy installation, the housing is integrally processed and formed, the overall strength is high, the sealing is good, it can be adapted to oil pumps of different sizes, the oil can cool the motor during operation, the operation is stable and the housing has a wider adaptation range. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 The utility model is a three-dimensional structural schematic diagram of an integrated oil pump housing structure.

[0014] Figure 2 yes Figure 1 Schematic diagram of the main structure.

[0015] Figure 3 yes Figure 1 Schematic diagram of the main cross-sectional structure.

[0016] Figure 4 yes Figure 1 Schematic diagram of the top view cross-sectional structure.

[0017] Figure 5 yes Figure 1Schematic diagram of the structure viewed from above.

[0018] In the figure, there are oil pump housing 1, mounting position 2, fixed sealing surface 3, motor cavity 4, controller cover 5, mounting cavity 6, cooling pipeline 7, oil outlet hole 8, sealing mounting groove 9, positioning pin 10, mounting hole 11, and oil pump main structure 12. DETAILED DESCRIPTION

[0019] The technical solution of the invention is further specifically described below through embodiments and in conjunction with the accompanying drawings.

[0020] Example:

[0021] like Figure 1 and 2 As shown in 3, 4 and 5, an integrated oil pump housing structure includes an oil pump housing 1 formed by an integrated machine, the oil pump housing 1 includes a fixed sealing structure at the top and an oil pump main structure 12 at the bottom, the fixed sealing structure includes a mounting position 2 at the top and a fixed sealing surface 3 extending horizontally in the middle, and the oil pump main structure 12 extends downward from the middle of the mounting position 2.

[0022] The mounting position 2 is formed by integral injection molding of the motor housing and the controller housing. A motor cavity 4 is opened at the top of the mounting position 2. A detachable controller cover 5 is installed on the top of the motor cavity 4. The controller cover 5 is pressed into the top of the motor cavity 4 by interference fit.

[0023] An installation cavity 6 is integrally formed at the bottom of the installation position 2, and a cooling structure is provided in the installation position 2. The cooling structure includes a cooling pipeline 7 provided in the installation position 2, the top end of the cooling pipeline 7 is connected to the motor cavity 4, and the bottom end is connected to the oil pump main structure 12. The cooling structure also includes an oil outlet hole 8 provided at the bottom of the motor cavity 4, and the oil outlet hole 8 is connected to the oil pump main structure 12.

[0024] The fixed sealing surface 3 extends horizontally, a sealing installation groove 9 is provided at the bottom edge of the fixed sealing surface 3 , a plurality of positioning pins 10 are integrally formed at the bottom of the fixed sealing surface 3 , and a plurality of installation holes 11 are provided at the shell edge of the fixed sealing surface 3 .

[0025] During installation, the motor is installed in the motor cavity 4, the special-shaped controller cover 5 is pressed into the top of the installation position 2 through interference fit, and the special-shaped sealing ring is installed in the sealing installation groove 9. During installation, it is aligned and fixed by the locating pin 10, and the entire oil pump housing 1 is fixed to the matching assembly using bolts and mounting holes 11. The oil pump housing 1 is integrally processed and formed with high overall strength, and the fixed sealing surface 3 is separated from the oil pump main structure 12, which can make the oil pump main body run more stably and reduce the risk of leakage. The fixed sealing surface 3 has a large area and the bottom installation cavity 6 has a large space, which can adapt to oil pumps of different sizes according to customer needs and has a wide range of applications.

[0026] During operation, part of the oil in the oil pump body will enter the motor cavity 4 from the bottom of the cooling pipeline 7 to cool the internal motor, and the oil will then flow out through the oil outlet 8, and the oil circulation will cool the motor.

Claims

1. An integrated oil pump housing structure, characterized in that: It includes an oil pump housing formed by an integrated machine, the oil pump housing includes a fixed sealing structure at the top and an oil pump main structure at the bottom, the fixed sealing structure includes a mounting position at the top and a fixed sealing surface extending horizontally in the middle, and the oil pump main structure extends downward from the middle.

2. The integrated oil pump housing structure according to claim 1, characterized in that: The installation position is formed by integral injection molding of the motor housing and the controller housing, a motor cavity is opened on the top of the installation position, a controller cover is arranged on the top of the motor cavity, and the controller cover is pressed into the motor cavity by interference fit.

3. The integrated oil pump housing structure according to claim 2, characterized in that: A cooling structure is arranged in the installation position, and the cooling structure comprises a cooling pipeline opened in the installation position, the top end of the cooling pipeline is connected with the motor cavity, and the bottom end of the cooling pipeline is connected with the oil pump main structure.

4. The integrated oil pump housing structure according to claim 3, characterized in that: The cooling structure also includes an oil outlet hole arranged at the bottom of the motor cavity, and the oil outlet hole is communicated with the main structure of the oil pump.

5. The integrated oil pump housing structure according to claim 3, characterized in that: An installation cavity is reserved at the bottom of the installation position.

6. The integrated oil pump housing structure according to claim 1, characterized in that: A sealing installation groove is provided on the bottom surface of the fixed sealing surface.

7. The integrated oil pump housing structure according to claim 6, characterized in that: The edge of the fixed sealing surface is provided with a mounting hole, and the bottom of the fixed sealing surface is integrally formed with a plurality of positioning pins.

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