CN117552975A - Small-size on-vehicle electronic oil pump structure - Google Patents

Small-size on-vehicle electronic oil pump structure Download PDF

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Publication number
CN117552975A
CN117552975A CN202311585576.4A CN202311585576A CN117552975A CN 117552975 A CN117552975 A CN 117552975A CN 202311585576 A CN202311585576 A CN 202311585576A CN 117552975 A CN117552975 A CN 117552975A
Authority
CN
China
Prior art keywords
oil pump
pcba
stator
small
rotor
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311585576.4A
Other languages
Chinese (zh)
Inventor
张文佳
冷凤竹
徐春杰
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Jiangxi Woder Technology Co ltd
Original Assignee
Jiangxi Woder Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Woder Technology Co ltd filed Critical Jiangxi Woder Technology Co ltd
Priority to CN202311585576.4A priority Critical patent/CN117552975A/en
Publication of CN117552975A publication Critical patent/CN117552975A/en
Pending legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C11/00—Combinations of two or more machines or pumps, each being of rotary-piston or oscillating-piston type; Pumping installations
    • F04C11/008—Enclosed motor pump units
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/082—Details specially related to intermeshing engagement type machines or pumps
    • F04C2/086—Carter
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2/00—Rotary-piston machines or pumps
    • F04C2/08—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing
    • F04C2/10—Rotary-piston machines or pumps of intermeshing-engagement type, i.e. with engagement of co-operating members similar to that of toothed gearing of internal-axis type with the outer member having more teeth or tooth-equivalents, e.g. rollers, than the inner member
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K16/00—Machines with more than one rotor or stator
    • H02K16/02—Machines with one stator and two or more rotors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/19—Arrangements for cooling or ventilating for machines with closed casing and closed-circuit cooling using a liquid cooling medium, e.g. oil
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
    • F04C2240/00—Components
    • F04C2240/30—Casings or housings

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Details And Applications Of Rotary Liquid Pumps (AREA)

Abstract

The invention relates to the technical field of vehicle-mounted electronic oil pumps. The utility model provides a small-size on-vehicle electronic oil pump structure, includes the oil pump housing, and the front side of oil pump housing is equipped with the pump cover, is equipped with oil feed pipeline and oil outlet pipeline on the pump cover, and rotor installation cavity has been seted up to the oil pump housing front side, and the embedded external rotor that is equipped with in rotor installation cavity is equipped with the inner rotor in the external rotor, and the fixed center guiding axle that is equipped with in inner rotor center department has seted up stator installation cavity, is equipped with the stator in the stator installation cavity, is equipped with stator core on the stator, inlays on the outer wall of external rotor and is equipped with the magnetic path. The invention provides a small vehicle-mounted electronic oil pump structure which has the advantages of concentrated structure, small volume, high working efficiency, good heat dissipation and internal cooling effects and capability of greatly reducing the volume of an electronic oil pump; the technical problem that in the prior art, a cooling system in a traditional electronic oil pump is single in structure, the whole oil pump is large in size, and internal parts are difficult to obtain effective cooling in working is solved.

Description

Small-size on-vehicle electronic oil pump structure
Technical Field
The invention relates to the technical field of vehicle-mounted electronic oil pumps, in particular to a small vehicle-mounted electronic oil pump structure.
Background
Automobiles have become one of the most preferred transportation tools in modern society. The automobile industry rapidly develops, and as automobile performance develops towards safer, more reliable, more stable, full-automatic + intelligent and environment-friendly energy-saving, electronic oil pumps are used on automobiles in a large number.
Based on the development trend of miniaturization, high power and high integration of the current electronic oil pump, the controller component is highly integrated, the motor power is high, and the stable operation of the oil pump cannot be guaranteed by the traditional heat dissipation mode, so that a more effective heat dissipation mode needs to be designed, and the operation temperature of the motor and the controller is ensured to be in a reasonable interval.
Most of the existing electronic oil pumps are single in structure, large in size and high in production cost, stability during operation is insufficient, various parts are difficult to be cooled rapidly, and an additional cooling structure is needed, so that the electronic oil pump has the need of improvement.
Disclosure of Invention
The invention provides a small vehicle-mounted electronic oil pump structure which has the advantages of centralized structure, small volume, high working efficiency and good heat dissipation and internal cooling effects, and can greatly reduce the volume of an electronic oil pump and increase the working stability; the technical problems that a cooling system structure in a traditional electronic oil pump in the prior art is single, the internal structure of the oil pump is fixed, the whole volume of the oil pump is large, internal parts are difficult to obtain effective cooling during working, the working is not stable enough, and the production cost is high are solved.
The technical problems of the invention are solved by the following technical scheme: the utility model provides a small-size on-vehicle electronic oil pump structure, includes the oil pump shell, the front side of oil pump shell is equipped with detachable pump cover, the interval is equipped with oil feed pipeline and oil outlet pipeline on the pump cover, the front side of oil pump shell seted up the rotor installation cavity, the embedded external rotor that is equipped with in rotor installation cavity, the internal eccentric inner rotor that is equipped with of external rotor, the fixed center guiding axle that is equipped with the backward side extension in inner rotor center department, annular stator installation cavity has been seted up to the rear side of oil pump shell, stator installation cavity internal fixation is equipped with the stator, the interval is equipped with a plurality of stator core that extends to the center on the stator, inlay on the outer wall of external rotor be equipped with a plurality of and stator complex magnetic path. During operation, the inner rotor rotates in the outer rotor, oil enters the pump cover through the oil inlet pipeline, the magnetic blocks on the side wall of the outer rotor are matched with the stator iron core, when the outer rotor rotates, the inner rotor can be driven to rotate, the inner rotor rotates around the central guide shaft, the outer rotor pumps the oil in the pump cover into the motor for lubrication and cooling in the rotating process, meanwhile, the magnetic blocks on the surface of the outer rotor are matched with the stator iron core, and the inner rotor is driven to rotate along with the rotation of the outer rotor, so that the outer rotor plays a role of a pump head and also plays a role of a rotor.
Preferably, the rear side of the oil pump shell is provided with a detachable PCBA mounting frame, the PCBA mounting frame is of an annular structure, a bearing matched with a central guide shaft is arranged in the middle of the PCBA mounting frame, and the central guide shaft extends into the bearing. The effect of PCBA mounting bracket on the one hand is convenient for fix and install PCBA board, and on the other hand PCBA mounting bracket center department's bearing can the cooperation of center guiding axle, and center guiding axle extends to in the bearing to rotate in the bearing, provide the guide effect for the rotation of inner rotor.
Preferably, the bearing is connected with the PCBA mounting frame through a plurality of mounting frameworks. The effect of installation skeleton on the one hand can connect bearing and PCBA mounting bracket, on the other hand can be convenient for fix and install PCBA board.
Preferably, each mounting framework is uniformly provided with a plurality of PCBA positioning columns, and each PCBA positioning column is provided with a bolt mounting hole. The effect of PCBA reference column is convenient for install and location PCBA board, and the PCBA board can be fixed with the PCBA board through the corresponding cooperation of bolt mounting hole on bolt and the PCBA reference column.
Preferably, the back side of the installation framework is provided with a detachable PCBA board, and the back side of the PCBA board is provided with a detachable sealed back cover. The PCBA board is installed on the PCBA reference column on the installation skeleton, and PCBA rear side is sealed through sealed back lid.
Preferably, the surface of the sealing rear cover is symmetrically provided with a plurality of mounting grooves, and each mounting groove is internally provided with a bolt positioning hole. The sealed back cover is fixed on the PCBA reference column on the installation skeleton, and the sealed back cover passes the bolt locating hole through the bolt and extends to the bolt mounting hole on the PCBA reference column in order to fix.
Preferably, the outer wall of the oil pump shell is integrally formed with a plurality of positioning lugs, the PCBA mounting rack is integrally formed with a plurality of mounting lugs which are correspondingly matched with the positioning lugs, and the pump cover, the positioning lugs and the mounting lugs are provided with communicated threaded holes. The locating lug on the outer wall of the oil pump shell is convenient for installing the pump cover and the PCBA installation rack, and the pump cover and the PCBA installation rack can be fixed through threaded holes in the locating lug through bolts, so that the installation is convenient.
Preferably, the oil pump housing is integrally formed, and the oil pump housing is made of a non-magnetic metal material. The oil pump housing is formed by integral injection molding, and the oil pump housing made of a non-magnetic metal material can greatly reduce the influence on the work of the outer rotor and the stator, and ensure the stability and the work efficiency of the oil pump.
Therefore, the small-sized vehicle-mounted electronic oil pump structure has the following advantages: the electronic oil pump internal structure is relatively concentrated, and holistic small of electronic oil pump, work efficiency is high, and heat dissipation, internal cooling's effectual, can reduce the volume of electronic oil pump by a wide margin, shortened the length of center pivot, on the one hand can reduce manufacturing cost, on the other hand increases job stabilization nature.
Drawings
Fig. 1 is a schematic perspective view of a small-sized vehicle-mounted electronic oil pump structure of the present invention.
Fig. 2 is a schematic diagram of the front view structure of fig. 1.
Fig. 3 is a schematic rear view of the structure of fig. 1.
Fig. 4 is a schematic view of the structure of fig. 1 in front cross section at the outer rotor.
Fig. 5 is a schematic view of the left-hand cross-sectional structure of fig. 1.
Fig. 6 is a schematic rear cross-sectional view of the PCBA mount of fig. 1.
Fig. 7 is a schematic rear cross-sectional view of the PCBA board of fig. 1.
Fig. 8 is a schematic perspective view of the PCBA mount of fig. 5.
In the figure, an oil pump housing 1, a pump cover 2, an oil inlet pipeline 3, an oil outlet pipeline 4, a rotor mounting cavity 5, an outer rotor 6, an inner rotor 7, a central guide shaft 8, a magnetic block 9, a stator mounting cavity 10, a stator 11, a stator core 12, a PCBA mounting bracket 13, a bearing 14, a mounting framework 15, a PCBA positioning column 16, a bolt mounting hole 17, a positioning hanging lug 18, a mounting protrusion 19, a threaded hole 20, a PCBA plate 21, a sealing rear cover 22, a mounting groove 23 and a bolt positioning hole 24.
Detailed Description
The technical scheme of the invention is further specifically described below through examples and with reference to the accompanying drawings.
Examples:
as shown in fig. 1 and 2, 3 and 4, and 5, and 6 and 7 and 8, a small-sized vehicle-mounted electronic oil pump structure comprises an integrally formed oil pump housing 1, wherein the oil pump housing 1 is made of a non-magnetic metal material, a detachable pump cover 2 is arranged on the front side of the oil pump housing, and an oil inlet pipeline 3 and an oil outlet pipeline 4 are arranged on the pump cover 2 at intervals.
The front side integrated into one piece of oil pump shell 1 has rotor installation cavity 5, and rotor installation cavity 5 internal rotation is installed outer rotor 6, and inner rotor 7 is installed to the internal eccentric of outer rotor 6, and the center department fixed mounting of inner rotor 7 has the central guiding axle 8 that extends to the rear side, and annular inlays on the outer wall of outer rotor 6 is equipped with a plurality of magnetic path 9.
The rear side of the oil pump housing 1 is integrally formed with an annular stator mounting cavity 10, a stator 11 is fixedly mounted in the stator mounting cavity 10, and a plurality of stator cores 12 extending towards the center are integrally formed on the inner side of the stator 11.
The detachable PCBA mounting frame 13 is mounted on the rear side of the oil pump shell 1, the PCBA mounting frame 13 is of an annular structure, a bearing 14 matched with the central guide shaft 8 is integrally formed in the center of the PCBA mounting frame 13, and the central guide shaft 8 extends into the bearing 14 and rotates in the bearing 14.
The PCBA mounting frame 13 is connected with the bearing 14 through a plurality of mounting frameworks 15, 2 PCBA positioning columns 16 are uniformly formed on each mounting framework 15, and bolt mounting holes 17 are formed in each PCBA positioning column 16.
The outer wall of the oil pump shell 1 is integrally formed with 5 positioning lugs 18, the PCBA mounting frame 13 is integrally formed with 5 mounting protrusions 19 corresponding to the positioning lugs 18, and the mounting protrusions 19, the pump cover 2 and the positioning lugs 18 are provided with threaded holes 20 which are communicated.
The PCBA locating column 16 at the rear side of the mounting framework 15 is provided with a PCBA plate 21, and the rear side of the PCBA plate 21 is provided with a detachable sealing rear cover 22.
The surface of the sealing rear cover 22 is symmetrically provided with 4 mounting grooves 23 corresponding to the mounting frameworks 15, and each mounting groove 23 is internally provided with a bolt positioning hole 24 corresponding to the bolt mounting hole 17.
During installation, the pump cover 2 and the PCBA mounting frame 13 are fixedly mounted on the oil pump housing 1 through bolts, the sealing rear cover 22 is mounted in the corresponding bolt mounting holes 17 through bolts to be fixed, and the PCBA plate 21 is also bolted onto the PCBA positioning columns 16 during installation of the sealing rear cover 22.
During operation, the inner rotor 7 rotates in the outer rotor 6, the central guide shaft 8 at the center of the inner rotor 7 rotates in the bearing 14, oil enters the pump cover 2 from the oil inlet pipeline 3, on one hand, the outer rotor 6 can pump the oil in the pump cover 2 into the motor for lubrication and cooling in the rotating process, meanwhile, the magnetic block 9 on the surface of the outer rotor 6 can be matched with the stator core 12, and the inner rotor 7 is driven to rotate along with the rotation of the outer rotor 6, the outer rotor 6 at the moment not only plays the role of a pump head, but also plays the role of a rotor, the volume of the whole structure of the oil pump is greatly reduced, and meanwhile, due to the fact that the distance between the stator 11 and the inner rotor 7 and the outer rotor 6 is relatively short, the stator 11 can be well cooled during the oil pumping or outflow.

Claims (8)

1. The utility model provides a small-size on-vehicle electronic oil pump structure, includes the oil pump shell, and the front side of oil pump shell is equipped with detachable pump cover, and the interval is equipped with oil feed pipeline and oil outlet pipeline, its characterized in that on the pump cover: the front side of the oil pump shell is provided with a rotor mounting cavity, an outer rotor is embedded in the rotor mounting cavity, an inner rotor is eccentrically arranged in the outer rotor, a central guide shaft extending towards the rear side is fixedly arranged at the center of the inner rotor, the rear side of the oil pump shell is provided with an annular stator mounting cavity, a stator is fixedly arranged in the stator mounting cavity, a plurality of stator cores extending towards the center are arranged on the stator at intervals, and a plurality of magnetic blocks matched with the stator are embedded on the outer wall of the outer rotor.
2. The small-sized vehicle-mounted electronic oil pump structure according to claim 1, wherein: the rear side of oil pump shell be equipped with detachable PCBA mounting bracket, PCBA mounting bracket is annular structure, PCBA mounting bracket middle part be equipped with central guiding axle complex bearing, central guiding axle extends to in the bearing.
3. The small-sized vehicle-mounted electronic oil pump structure according to claim 1, wherein: the bearing is connected with the PCBA mounting frame through a plurality of mounting frameworks.
4. A small-sized vehicle-mounted electronic oil pump structure according to claim 3, wherein: each installation framework is uniformly and integrally formed with a plurality of PCBA positioning columns, and each PCBA positioning column is provided with a bolt installation hole.
5. The small-sized vehicle-mounted electronic oil pump structure according to claim 4, wherein: the installation skeleton rear side be equipped with detachable PCBA board, PCBA board rear side is equipped with detachable sealed back lid.
6. A small-sized vehicle-mounted electronic oil pump structure according to claim 3, wherein: the surface of the sealing rear cover is symmetrically provided with a plurality of mounting grooves, and each mounting groove is internally provided with a bolt positioning hole.
7. The small-sized vehicle-mounted electronic oil pump structure according to claim 6, wherein: the oil pump shell outer wall integrated into one piece have a plurality of location hangers, integrated into one piece has a plurality of and location hangers to correspond complex installation arch on the PCBA mounting bracket, all offered communicating screw hole on pump cover, location hangers and the installation arch.
8. The small-sized vehicle-mounted electronic oil pump structure according to claim 7, wherein: the oil pump housing is integrally formed, and is made of a non-magnetic metal material.
CN202311585576.4A 2023-11-27 2023-11-27 Small-size on-vehicle electronic oil pump structure Pending CN117552975A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311585576.4A CN117552975A (en) 2023-11-27 2023-11-27 Small-size on-vehicle electronic oil pump structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311585576.4A CN117552975A (en) 2023-11-27 2023-11-27 Small-size on-vehicle electronic oil pump structure

Publications (1)

Publication Number Publication Date
CN117552975A true CN117552975A (en) 2024-02-13

Family

ID=89814449

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311585576.4A Pending CN117552975A (en) 2023-11-27 2023-11-27 Small-size on-vehicle electronic oil pump structure

Country Status (1)

Country Link
CN (1) CN117552975A (en)

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