Splicing type oil pump shell structure

Abstract

The utility model relates to the technical field of vehicle-mounted oil pumps. A splicing type oil pump shell structure comprises an oil pump shell formed by splicing a plurality of sections, the oil pump shell comprises a pump head shell on the front section, a motor shell on the middle section and a controller shell on the rear section, the pump head shell and the motor shell are fixedly connected through bolts, and the motor shell and the controller shell are fixedly connected through bolts. A sealing face extending outwards is integrally formed in the middle of the motor shell, a plurality of three-phase leading-out holes communicated with the inner cavity are formed in the bottom of the controller shell, and welding windows corresponding to the three-phase leading-out holes are formed in the top of the controller shell. The oil pump shell is divided into a plurality of sections of structures which are independently machined and then spliced, when a certain part is unqualified, the part can be independently scrapped, the whole assembly does not need to be scrapped, the overall cost is reduced, the sealing face of the motor shell can be independently machined, the sealing face does not need to be adjusted when the motor shell is matched with matching parts of different sizes, and the sealing effect is good. According to the spliced oil pump shell structure, only the internal structure needs to be adjusted, and welding and observation of a three-phase outgoing line are facilitated. The technical problems that in the prior art, an existing vehicle-mounted oil pump shell is single in structure, a certain part is inconvenient to replace independently, the production cost is high, and more actual machining requirements cannot be met due to the fact that the electronic oil pump shell cannot be matched with matching parts of different models due to the limitation of the size of the electronic oil pump shell are solved.

Description

Technical Field

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

[0002] With the development of economy, people's living standard has gradually improved, and cars have become one of the preferred means of transportation for the public. The automobile industry has developed rapidly. As automobile performance is developing towards safer, more reliable, more stable, environmentally friendly and energy-saving directions, in order to ensure the stable operation of automobile powertrain, it is necessary to equip a complete actuator. Therefore, various actuators with motors are widely used in automobile powertrains, including hydraulic actuators, gear selector actuators, brake boosters, etc.

[0003] To ensure the cooling and lubrication of all engine components, an electronic oil pump is needed to provide power for the oil circulation. The electronic oil pump is powered by its own controller system to control the internal motor, drive the impeller (inner and outer rotors) to drive the oil circulation to cool and lubricate related components. The current new electronic oil pump is composed of a controller, a motor, and an inner and outer rotor of the pump head. To ensure the stability of each structural link and the stable operation of the product, high requirements are placed on the overall structural design. The current electronic oil pump housing is usually one-piece. When a component has a problem, it is not convenient to replace it separately, and the entire assembly needs to be scrapped. In addition, due to its size limitation, the electronic oil pump can only be installed with accessories of the same specification, which cannot meet more production needs. Therefore, it is necessary to improve it. Summary of the invention

[0004] The present invention provides a spliced ​​oil pump housing structure in which an oil pump housing is divided into multiple sections, which are independently processed and then spliced. When a certain component is unqualified, it can be scrapped separately without scrapping the entire assembly, thereby reducing the overall cost. The sealing surface of the motor housing can be processed separately, and there is no need to adjust the sealing surface when matching with accessories of different sizes. Only the internal structure needs to be adjusted, which is convenient for welding and observation of three-phase lead-out lines. The present invention solves the technical problems existing in the prior art that the current on-vehicle oil pump housing has a single structure, is not convenient for replacing a certain part separately, has a high production cost, and cannot be matched with accessories of different models due to the size limitation of the electronic oil pump housing, and cannot meet more actual processing needs.

[0005] The above technical problems of the present invention are solved by the following technical solutions: a spliced ​​oil pump housing structure, including an oil pump housing spliced ​​together from several sections, the oil pump housing including a front section pump head housing, a middle section motor housing, and a rear section controller housing, the pump head housing and the motor housing, and the motor housing and the controller housing are fixedly connected by bolts, the middle part of the motor housing is integrally formed with a sealing surface extending outward, a plurality of three-phase lead-out holes connected to the internal cavity are opened at the bottom of the controller housing, and a welding window corresponding to the three-phase lead-out holes is opened at the top of the controller housing. During installation, the pump head housing, motor housing and controller housing are connected and assembled into an oil pump housing, and the pump head housing, motor housing and controller housing are fixedly connected by bolts; the front, middle and rear sections of the oil pump housing are independently processed and then spliced ​​together. When a certain component is unqualified, it can be scrapped separately without scrapping the entire assembly, which reduces the overall cost; the sealing surface on the motor housing can be processed separately, which on the one hand reduces the processing cost, and on the other hand allows the motor housing to be matched with more accessories of different sizes. The size of the sealing surface does not need to be adjusted, only the internal structure needs to be adjusted; the welding window on the top of the controller housing is used for welding the three-phase lead-out holes and injecting thermal conductive adhesive after assembly, which is convenient for operation and observation.

[0006] Preferably, an assembly gap is left between the motor housing and the sealing surface. The motor housing and the sealing surface are semi-split structures, and an assembly gap is left between the motor housing and the sealing surface to facilitate adjustment of the internal structure.

[0007] Preferably, the sealing surface on the motor housing is integrally formed with a plurality of hanging ears, which are used to match and fix with the sealing surface, and the hanging ears on the sealing surface are far away from the motor, which can effectively reduce the vibration superposition when the oil pump motor is working.

[0008] Preferably, the motor housing is integrally formed with a plurality of reinforcing ribs. The upper and lower sides of the sealing surface on the motor housing are integrally formed with a plurality of reinforcing ribs, and the function of the reinforcing ribs is to increase the strength of the motor housing.

[0009] Preferably, the upper surface of the controller housing is covered with a detachable sealing cover plate, which covers the welding window. The welding window at the top of the controller housing is used for welding the three-phase lead-out holes and injecting thermal conductive glue after assembly, which is convenient for operation and observation. When the operation is completed, the sealing cover plate can be covered on the welding window and fixed by bolts.

[0010] Preferably, the sealing cover plate is integrally formed with a downwardly concave heat dissipation concave surface. The heat dissipation concave surface on the sealing cover plate is concave downwardly concave to contact and cooperate with the electronic component, and the heat dissipation effect of the electronic component is increased by applying heat dissipation glue.

[0011] Preferably, the controller housing is integrally formed with an upwardly protruding mating mounting surface, the sealing cover plate covers the mating mounting surface, and a downwardly recessed sealing groove is provided on the periphery of the mating mounting surface. The sealing cover plate is fixedly mounted on the mating mounting surface by bolts, and a sealing ring is installed in the sealing groove at the edge of the mating mounting surface to ensure sealing, and the heat dissipation concave surface in the middle of the sealing cover plate extends downward to dissipate heat.

[0012] Therefore, a spliced ​​oil pump housing structure of the present invention has the following advantages: the three-phase lead wires can be welded and observed quickly and conveniently, the oil pump housing can be divided into multiple sections and independently processed and then spliced; when a certain component is unqualified, it can be scrapped separately without scrapping the entire assembly, thereby reducing the overall cost; the sealing surface of the motor housing can be processed separately, and there is no need to adjust the sealing surface when matching with accessories of different sizes, only the internal structure needs to be adjusted. BRIEF DESCRIPTION OF THE DRAWINGS

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

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

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

[0016] Figure 4 yes Figure 1 Schematic diagram of the three-dimensional structure of the motor housing.

[0017] Figure 5 yes Figure 4 Schematic diagram of the main structure.

[0018] Figure 6 yes Figure 1 Schematic diagram of the three-dimensional structure of the controller housing.

[0019] Figure 7 yes Figure 6 Schematic diagram of the top view structure.

[0020] In the figure, the oil pump housing 1, the pump head housing 2, the motor housing 3, the controller housing 4, the bolts 5, the sealing surface 6, the assembly gap 7, the hanging ears 8, the reinforcing ribs 9, the three-phase lead-out holes 10, the welding window 11, the matching mounting surface 12, the sealing groove 13, the sealing cover plate 14, and the heat dissipation concave surface 15. 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 2 As shown in Figures 3, 4, 5, 6 and 7, a spliced ​​oil pump housing structure includes an oil pump housing 1 that is spliced ​​into three sections. The oil pump housing 1 includes a pump head housing 2 at the front section, a motor housing 3 at the middle section, and a controller housing 4 at the rear section. The pump head housing 2 and the motor housing 3, as well as the motor housing 3 and the controller housing 4 are fixedly connected by bolts 5.

[0024] The middle of the motor housing 3 is integrally formed with a sealing surface 6 extending outward, an assembly gap 7 is left between the motor housing 3 and the sealing surface 6 , and three hanging ears 8 are integrally formed at the edge of the sealing surface 6 of the motor housing 3 .

[0025] A plurality of reinforcing ribs 9 are integrally formed on the upper and lower sides of the sealing surface 6 of the motor housing 3 .

[0026] The controller housing 4 has a cavity inside. The bottom of the controller housing 4 is provided with three three-phase lead-out holes 10 communicating with the internal cavity. The top of the controller housing 4 is provided with welding windows 11 corresponding to the three-phase lead-out holes 10 .

[0027] The welding window 11 is an arc-shaped structure. The top of the controller housing 4 is integrally formed with an upwardly protruding mating mounting surface 12 , and the edge of the mating mounting surface 12 is provided with a downwardly recessed sealing groove 13 .

[0028] A detachable sealing cover plate 14 is installed on the mating mounting surface 12 . The sealing cover plate 14 is fixed on the mating mounting surface 12 by bolts 5 . A heat dissipation concave surface 15 which is recessed and extends downward is integrally formed in the middle of the sealing cover plate 14 .

[0029] During installation, the pump head housing 2, the motor housing 3 and the controller housing 4 are connected and assembled into the oil pump housing 1, and the pump head housing 2, the motor housing 3 and the controller housing 4 are fixedly connected by bolts 5, wherein the motor housing 3 and the sealing surface 6 are a semi-split structure, and an assembly gap 7 is left between the motor housing 3 and the sealing surface 6 for the purpose of facilitating the adjustment of the internal structure.

[0030] The sealing surface 6 on the motor housing 3 can be processed separately, which can reduce the processing cost on the one hand, and make the motor housing 3 match more matching parts of different sizes on the other hand. The size of the sealing surface 6 does not need to be adjusted, only the internal structure needs to be adjusted.

[0031] Furthermore, the lug 8 on the sealing surface 6 is far away from the motor, which can effectively reduce the vibration superposition when the oil pump motor is working.

[0032] After the three-phase lead-out holes 10 at one end of the bottom of the controller housing 4 near the motor are assembled, the three three-phase lead-out holes 10 will be sealed with sealant, and the welding window 11 at the top of the controller housing 4 is used for welding the three-phase lead-out holes 10 and injecting thermal conductive glue after assembly, which is convenient for operation and observation. When the operation is completed, the sealing cover plate 14 can be covered on the welding window 11 and fixed with bolts 5, and an installation sealing ring is embedded in the sealing groove 13 on the outside of the matching mounting surface 12 to ensure sealing.

[0033] The front, middle and rear sections of the oil pump housing 1 are all independently processed and then assembled together. When a certain component is unqualified, it can be scrapped separately without scrapping the entire assembly, thereby reducing the overall cost.

Claims

1. A spliced ​​oil pump housing structure, characterized in that: The utility model comprises an oil pump housing formed by splicing several sections, wherein the oil pump housing comprises a front section pump head housing, a middle section motor housing and a rear section controller housing, the pump head housing and the motor housing, and the motor housing and the controller housing are fixedly connected by bolts, the middle part of the motor housing is integrally formed with a sealing surface extending outward, the bottom of the controller housing is provided with several three-phase lead-out holes connected with the internal cavity, and the top of the controller housing is provided with welding windows corresponding to the three-phase lead-out holes.

2. The spliced ​​oil pump housing structure according to claim 1, characterized in that: An assembly gap is left between the motor housing and the sealing surface.

3. The spliced ​​oil pump housing structure according to claim 2, characterized in that: A plurality of hanging ears are integrally formed on the sealing surface of the motor housing.

4. The spliced ​​oil pump housing structure according to claim 3 is characterized in that: A plurality of reinforcing ribs are integrally formed on the motor housing.

5. The spliced ​​oil pump housing structure according to claim 2, characterized in that: The upper surface of the controller housing is covered with a detachable sealing cover plate, and the sealing cover plate covers the welding window.

6. The spliced ​​oil pump housing structure according to claim 5, characterized in that: The sealing cover plate is integrally formed with a downwardly recessed heat dissipation concave surface.

7. The spliced ​​oil pump housing structure according to claim 5, characterized in that: The controller housing is integrally formed with an upwardly protruding mating mounting surface, a sealing cover plate covers the mating mounting surface, and a downwardly recessed sealing groove is provided on the periphery of the mating mounting surface.

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