WO2019041959A1 - 电子油泵 - Google Patents

电子油泵 Download PDF

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Publication number
WO2019041959A1
WO2019041959A1 PCT/CN2018/090551 CN2018090551W WO2019041959A1 WO 2019041959 A1 WO2019041959 A1 WO 2019041959A1 CN 2018090551 W CN2018090551 W CN 2018090551W WO 2019041959 A1 WO2019041959 A1 WO 2019041959A1
Authority
WO
WIPO (PCT)
Prior art keywords
housing
oil pump
electronic oil
partition
cavity
Prior art date
Application number
PCT/CN2018/090551
Other languages
English (en)
French (fr)
Inventor
卢建钢
吴志旺
殷炳玖
张凯
周裕斌
Original Assignee
杭州三花研究院有限公司
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 杭州三花研究院有限公司 filed Critical 杭州三花研究院有限公司
Priority to US16/642,882 priority Critical patent/US20200300241A1/en
Priority to JP2020511976A priority patent/JP2021501280A/ja
Priority to EP18850865.9A priority patent/EP3677779B1/en
Priority to PL18850865.9T priority patent/PL3677779T3/pl
Publication of WO2019041959A1 publication Critical patent/WO2019041959A1/zh

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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
    • F04C2/10—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
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • 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
    • F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
    • F04C15/0096—Heating; Cooling
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/20—Rotary pumps
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • 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
    • F04C2210/00—Fluid
    • F04C2210/14—Lubricant
    • 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

Definitions

  • the present invention relates to the field of vehicles, and more particularly to components of a vehicle lubrication system and/or a cooling system.
  • the electronic oil pump mainly provides a power source for the lubrication system and/or the cooling system of the vehicle. How to design the structure of the electronic oil pump to improve the structure and performance of the electronic oil pump is a technical problem to be solved urgently.
  • an embodiment of the present invention adopts the following technical solutions:
  • An electronic oil pump includes a pump housing, a first rotor assembly, a pump shaft, a second rotor assembly, a stator assembly, and a circuit board assembly, the pump housing including at least a first housing, a second housing, and a third housing
  • the electronic oil pump has a pump lumen, the pump lumen includes a first lumen and a second lumen, and a sidewall forming the first lumen includes a portion of the first housing and a portion of the first a second housing, the side wall forming the second inner cavity includes a portion of the second housing and a portion of the third housing;
  • the first rotor assembly is received in the first inner cavity, the first a second rotor assembly, the stator assembly and the circuit board assembly are received in the second inner cavity;
  • the electronic oil pump includes a partition, the partition being located in the first housing and the third housing Between the first inner cavity and the second inner cavity being located at two sides of the partition; the first inner cavity and the second inner cavity are disposed by the partition, or
  • FIG. 1 is a schematic perspective view showing a first embodiment of an electronic oil pump of the present invention
  • Figure 2a is a schematic cross-sectional view of the electronic oil pump of Figure 1 in one direction;
  • 2b is a schematic cross-sectional structural view of a second embodiment of the electronic oil pump of the present invention.
  • 2c is a schematic cross-sectional structural view of a third embodiment of the electronic oil pump of the present invention.
  • 2d is a schematic cross-sectional structural view of a fourth embodiment of the electronic oil pump of the present invention.
  • Figure 3 is a cross-sectional view showing the structure of the electronic oil pump of Figure 1 in another direction;
  • Figure 4 is a front elevational view of the electronic oil pump of Figure 1;
  • Figure 5 is a front elevational view showing the electronic oil pump of the first housing of Figure 1;
  • Figure 6 is a perspective view of a first embodiment of the first housing of Figure 1;
  • Figure 7 is a perspective view showing the other direction of the first embodiment of the first housing of Figure 1;
  • Figure 8 is a front elevational view showing the first housing of Figure 6 in a direction
  • Figure 9 is a front elevational view showing the first housing of Figure 6 in another direction;
  • Figure 10 is a cross-sectional structural view of the first housing of Figure 6 in one direction;
  • Figure 11 is a cross-sectional structural view showing the other direction of the first casing of Figure 6;
  • Figure 12 is a cross-sectional structural view showing another embodiment of the first housing of Figure 1;
  • Figure 13 is a perspective view showing a perspective view of a first embodiment of the second housing of Figure 1 or Figure 2a;
  • Figure 14 is a perspective view showing the other direction of the first embodiment of the second housing of Figure 1 or Figure 2a;
  • Figure 15 is a cross-sectional structural view of the second housing of Figure 13;
  • Figure 16 is a partially enlarged schematic view showing a portion B of the second casing of Figure 15;
  • Figure 17 is a cross-sectional structural view showing a fifth embodiment of the electronic oil pump of the present invention.
  • Figure 18 is a cross-sectional structural view of the second housing of Figure 17;
  • Figure 19 is a cross-sectional structural view showing a sixth embodiment of the electronic oil pump of the present invention.
  • Figure 20 is a perspective view showing the structure of the third housing of Figure 1 in one direction;
  • Figure 21 is a front elevational view showing the third housing of Figure 19;
  • Figure 22 is a perspective view showing the other direction of the third housing of Figure 1;
  • Figure 23 is another front elevational view of the third housing of Figure 19;
  • Figure 24 is a cross-sectional structural view of the third housing of Figure 19;
  • Figure 25 is a perspective structural view of one direction of the partition of Figures 2a to 3;
  • Figure 26 is a perspective view showing the other direction of the partition of Figures 2a to 3;
  • Figure 27 is a front elevational view showing the partition of Figure 25 or Figure 26;
  • Figure 28 is a schematic cross-sectional view of the partition of Figure 25 or Figure 26;
  • FIGS. 2a to 3 are perspective structural schematic views of the combination of the mounting bracket and the capacitor of FIGS. 2a to 3;
  • Figure 30 is a front elevational view showing the combination of the mounting bracket and the capacitor of Figure 29;
  • Figure 31 is a perspective view showing a three-dimensional structure of the mounting bracket of Figures 2a to 3;
  • Figure 32 is a front elevational view showing the mounting bracket of Figure 31;
  • Figure 33 is a partially enlarged schematic view showing the portion C of the mounting bracket of Figure 31.
  • the electronic oil pump can be used in a vehicle lubrication system and/or a cooling system to provide circulating power to the working medium in the vehicle lubrication system and/or the cooling system, and the vehicle lubrication system and/or the cooling system can provide lubrication to the transmission system And / or cooling oil.
  • the electronic oil pump 100 includes a pump housing, a second rotor assembly 3, a stator assembly 4, a pump shaft 5, a first rotor assembly 8, and a circuit board assembly 6, a first rotor assembly 8,
  • the two rotor assembly 3 and the circuit board assembly 6 are arranged along the axial direction of the electronic oil pump 100 such that the electronic oil pump 100 is more axially arranged.
  • the second rotor assembly 3 is disposed on the first rotor assembly 8 and the circuit board assembly. 6;
  • the electronic oil pump has a pump chamber, the second rotor assembly 3, the stator assembly 4, the pump shaft 5, the first rotor assembly 8, and the circuit board assembly 6 are housed in the pump chamber.
  • the circuit board assembly 6 changes the current passing through the stator assembly 4 according to a certain law, thereby controlling the stator assembly 4 to generate a varying excitation magnetic field, and the second rotor assembly 3 is rotated by the excitation magnetic field, second.
  • the rotor assembly 3 drives the first rotor assembly 8 to rotate by the pump shaft 5, and when the first rotor assembly 8 rotates, the working medium is forced out of the second flow port to generate flowing power.
  • the pump housing includes at least a first housing, a second housing, and a third housing; specifically, referring to FIG. 2a, in the embodiment, the pump housing includes a first housing 1, a second housing 2, and a third The housing 7; the electronic oil pump can form a pump inner cavity.
  • the pump inner cavity includes a first inner cavity 80 and a second inner cavity 90.
  • the first inner cavity 80 can have a working medium flowing therethrough, and the first rotor component 8 is disposed in the first inner cavity 80; the second inner cavity 90 is free of working medium, and the stator assembly 4, the second rotor assembly 3 and the circuit board assembly 6 are disposed in the second inner cavity 90 to form a sidewall of the first inner cavity 80.
  • the electronic oil pump 100 includes a partition 22,
  • the first inner cavity 80 and the second inner cavity 90 are respectively located at two sides of the partition 22, and the electronic oil pump 100 further includes a sealing portion 50.
  • the first inner cavity 80 and the second inner cavity 90 are separated by the partition 22 and the sealing portion 50.
  • the separation of the partition 22 and the sealing portion 50 causes the working medium in the first inner chamber 80 and the working medium in the second inner chamber 90 to be disconnected;
  • the stator assembly disposed like circuit board assemblies 4 and 6 are sufficiently separated from the working medium, to ensure the performance of the stator assembly and the circuit board is not affected by the working medium; particularly on the sealing portion 50 and the partition structure portion 22 described below.
  • the first rotor assembly 8 is disposed adjacent one end of the pump shaft 5, the first rotor assembly 8 is coupled to a portion of the pump shaft 5, and the second rotor assembly 3 is disposed adjacent the other end of the pump shaft 5,
  • the two rotor assembly 3 is coupled to a portion of the pump shaft 5 such that the second rotor assembly 3 can drive the first rotor assembly 8 to rotate by the pump shaft 5, and the circuit board assembly 6 is disposed adjacent to one end of the pump shaft 5 on which the second rotor assembly 3 is mounted.
  • One end of the pump shaft 5 extends into the first inner cavity 80, and the other end of the pump shaft 5 extends into the second inner cavity 90.
  • one end of the pump shaft 5 adjacent to the first rotor assembly 8 projects into the first inner cavity 80, The other end of the pump shaft 5 adjacent to the second rotor assembly 3 penetrates into the second inner chamber 90.
  • the electronic oil pump includes a partition, the first inner cavity and the second inner cavity are respectively located at two sides of the partition, the partition is located between the first casing and the third casing, and the first rotor component and the second rotor component are disposed at intervals On both sides of the portion, the first inner cavity and the second inner cavity are separated by a partition; here, regarding the arrangement of the partition, the following four embodiments will be described.
  • Figures 1 and 2a are schematic views of the structure of a first embodiment of an electronic oil pump; the structure of the first embodiment of the electronic oil pump will be described below.
  • the pump housing comprises a first housing 1, a second housing 2 and a third housing 7, and the second housing 2 is closer to the second rotor than the first housing 1.
  • the assembly 3, the first housing 1 and the second housing 2 are detachably connected, and the second housing 2 is detachably connected to the third housing 7; thus, the housing is conveniently disposed in the cavity relative to the non-removable housing connection
  • the components in the body are detected and repaired, for example, the connection between the first housing 1 and the second housing 2 is opened, the operation of the first rotor assembly 8 can be detected, and the first rotor assembly 8 can be replaced as needed, and the second housing can be opened.
  • connection between the 2 and the third casing 7 can detect the operation of the circuit board assembly 6 and repair and replace the circuit board assembly as needed, so that it is not necessary to damage other components of the electronic oil pump, thereby reducing cost and improving maintenance efficiency.
  • first housing 1 and the second housing 2 are detachably connected by the first connecting portion
  • the second housing 2 and the third housing 7 are detachably connected by the second connecting portion
  • first The connecting portion and the second connecting portion are not disposed in the first inner cavity 80 or the second inner cavity 90, as described below with respect to the first connecting portion and the second connecting portion.
  • the second housing 2 includes a partition 22 capable of supporting the first rotor assembly 8 , the second housing 2 further including a body portion 21 along the axis of the second housing 2
  • the main body portion 21 has a cylindrical shape, and the inner wall of the main body portion 21 can form at least a portion of the side wall of the second inner cavity 90 in Fig. 2a, the first casing 1 and the main body portion 21, and the main body portion 21 and
  • the three housings 7 are detachably connectable; in this embodiment, the side wall forming the first inner cavity 80 in FIG. 2a includes a portion of the first housing 1 and the second housing 2 to form the second inner cavity of FIG. 2a.
  • the side wall of the portion 90 includes a portion of the second housing 2 and the third housing 7; in the embodiment, the partition portion 22 is disposed along the inner wall of the main body portion 21, that is, the partition portion 22 is fixed to the main body portion 21, this embodiment
  • the partition 22 is integrally formed with the main body portion 21, and the partition portion 22 is disposed substantially perpendicular to the main body portion 21.
  • substantially means that the verticality is within 1 mm.
  • the partition portion 22 is disposed in the second shell.
  • a second inner cavity 90 is formed between the partition portion 22 and the third casing 7
  • a first inner cavity 80 is formed between the first casing 1 and the partition portion 22, such a structure
  • a first lumen 80 of the working medium leaks at the connection portion 21 and body portion 22 of the partition, a simple structure.
  • Fig. 2b is a schematic view showing the structure of a second embodiment of the electronic oil pump.
  • the structure of the second embodiment of the electronic oil pump will be described below.
  • the electronic oil pump further includes a fourth housing, and the second housing includes a partition; specifically, referring to FIG. 2b, the electronic oil pump 100a includes a first housing 1a and a second housing 2a. a third housing 7a and a fourth housing 40a, the first housing 1a is detachably connected to the second housing 4a and the fourth housing 40a, and the third housing 7a is detachably connected to the fourth housing 40a;
  • the second housing 20a includes a main body portion 21a, and the main body portion 21a of the first housing 1a and the second housing 2a are connected by screws or bolts, and the main body portion 21a and the fourth housing 40a of the second housing 2a pass the screws.
  • the electronic oil pump 100b includes a partition 22a, and the partition 22a is integrally formed with the second casing 2a.
  • the partition 22a is integrally formed with the main body of the second casing 20a; compared to the first of the electronic oil pump
  • the electronic oil pump further includes a fourth casing 40a, and in the present embodiment, the second casing 20a is different from the second casing structure in the first embodiment of the electronic oil pump, that is, equivalent Dividing the second housing in the first embodiment of the electronic oil pump into two parts, which is relatively advantageous Saving raw materials when parts processing, thus contributing to reducing the cost of processing the material.
  • Fig. 2c is a schematic view showing the structure of a third embodiment of the electronic oil pump, and the structure of the third embodiment of the electronic oil pump will be described below.
  • the partition is a separate component; in particular, referring to FIG. 2c, the electronic oil pump 100b includes a first housing 1b, a second housing 2b, a third housing 7b, and a The fourth housing 40b is detachably connected to the second housing 2b, and the third housing 7b is detachably connected to the fourth housing 40b.
  • the electronic oil pump 100b further includes a partition 22b. The portion 22b is disposed between the second housing 2b and the fourth housing 40b.
  • the partition 22b is detachably connected to the first housing 1b and the second housing 2b, and the first housing 1b, the first housing The second housing 2b, the partition 22b, and the fourth housing 40b are detachably connected by screws or bolts.
  • a sealing ring may be provided at the joint; compared with the electronic oil pump
  • the partition is a single component, which is advantageous for relatively reducing the processing difficulty of the second casing and saving raw materials during component processing, thereby reducing material cost during processing. .
  • Fig. 2d is a schematic structural view of a fourth embodiment of the electronic oil pump, and the structure of the fourth embodiment of the electronic oil pump will be described below.
  • the electronic oil pump further includes a fourth housing, and the fourth housing includes a partition; specifically, referring to FIG. 2d, the electronic oil pump 100c includes a first housing 1c and a second housing 20c.
  • the third housing 7c and the fourth housing 40c are detachably connected to the second housing 2c and the fourth housing assembly 40c, and the third housing 7c is detachably connected to the fourth housing assembly 40c.
  • the first housing 1c is coupled to the second housing 2a and the fourth housing 40c by screws or bolts, and the fourth housing 40c is coupled to the third housing 7c by screws or bolts;
  • the fourth housing 40c includes The partition 22c, the partition 22c can support the first rotor assembly; compared to the first embodiment of the electronic oil pump, in this embodiment, the second housing in the first embodiment of the electronic oil pump is divided into two Parts, which are relatively conducive to saving raw materials during component processing, thus helping to reduce material costs during processing.
  • the electronic oil pump 100 includes a first rotor assembly 8 including a first rotor 81 and a second rotor 82, the first rotor 81 including a plurality of external teeth, and a second The rotor 82 includes a plurality of internal teeth.
  • a hydraulic chamber 801 is formed between the internal teeth of the second rotor 82 and the external teeth of the first rotor 81.
  • the second rotor 82 is sleeved on the first rotor. At the outer circumference of 81, a part of the internal teeth of the second rotor 82 mesh with a part of the external teeth of the first rotor 81.
  • the electronic oil pump 100 includes a first flow port 11 for the inflow of the working medium, and a second flow port 12 for the outflow of the working medium, specifically, the work.
  • the medium can enter the hydraulic chamber 801 through the first flow port 11, and the working medium can exit the hydraulic chamber 801 through the second flow port 12; since there is a certain eccentricity between the first rotor 81 and the second rotor 82, the first rotor 81 is rotating When a part of the external teeth of the first rotor 81 meshes with a part of the internal teeth of the second rotor 82, thereby rotating the second rotor 82, the volume in the hydraulic chamber 801 changes during the one rotation of the first rotor assembly 8.
  • the first inner cavity 80 is in communication with the first flow port 11 and the second flow port 12, and the first inner cavity 80 and the second inner cavity 90 are not connected due to the first inner cavity and the second inner cavity of the electronic oil pump.
  • a first communication cavity is provided between the first flow port 11 and the hydraulic pressure chamber 801, and a second communication cavity is disposed between the second flow port 12 and the hydraulic pressure chamber 801.
  • the structure passes through the first communication cavity and the first communication cavity.
  • the two communicating cavities buffer the working medium, which is beneficial to improve vibration and noise. The specific structure is described below.
  • the first housing 1 and the second housing 2 are detachably connected by the first connecting portion 123
  • the second housing 2 and the third housing 7 are detachably connected by the second connecting portion 232 .
  • a connecting portion 124 and a second connecting portion 234 are not disposed in the first inner cavity 80 or the second inner cavity 90; specifically, in the embodiment, the first connecting portion 124 includes a first screw 1231 (shown in FIG. 2a)
  • the first housing 1 includes a first flange portion 15, the first flange portion 15 extends in the radial direction of the electronic oil pump, and the first flange portion 15 is formed with the first communication portion.
  • a hole 13 a first communication hole 13 is disposed near an edge of the first flange portion 15, and a second threaded hole 231 is formed in the second housing 2, and the first threaded hole 231 is formed along the body portion 21 of the second housing 2,
  • a screw 1231 is mounted through the first communication hole 13 from the first housing 1 and is screwed to the second housing 2; such that at least a portion of the first screw 1231 is detachable from the outside of the housing, such that the electronic device is disposed
  • the disassembly and assembly of the oil pump is more convenient, thereby facilitating the maintenance of the first rotor assembly in the electronic oil pump, of course, the first housing 1 and the second housing Between 2 may be connected by other means, such as a plug, snap-like manner is detachably connected.
  • the first communication hole 13 is the first counterbore hole 131 and the first through hole 132, wherein the aperture of the first counterbore hole 131 is larger than the first
  • the depth of the first counterbore 131 is slightly larger than the height of the nut of the first screw 1231, such that the top surface of the first screw 1231 is lower than the first flange 15 after the first screw 1231 is mounted.
  • the surface prevents the first screw 1231 from interfering with other components; of course, in the case where the first screw relief portion is provided in the portion of the transmission system corresponding to the electronic oil pump, the first counterbore hole 131 may not be provided in the first communication hole 13, only The first through hole 132 may be included, such that the first communication hole 13 is closer to the radial edge of the first flange portion 15 or the distance between the first communication hole 13 and the edge of the first flange portion 15 is increased. Convenient for the first connected hole layout.
  • the second housing 2a and the third housing 7 are detachably connected by the second connecting portion 232.
  • the second connecting portion 232 includes a second screw 2321, see FIG. 14 and FIG.
  • the third housing 7 is formed with a second communication hole 73
  • the second housing 2 is formed with a second threaded hole 241
  • the second threaded hole 241 is formed along the main body portion 21 of the second housing 2, and the second screw 2321 is self-contained.
  • the three housings 7 are mounted in the direction and are threadedly coupled to the second housing 2.
  • the third housing 7 may be formed with a second threaded hole, the second housing 2 is formed with a second communication hole, and the second screw 2321 is mounted from the second housing 2 and screwed to the third housing 7.
  • the specific structure is designed according to the requirements of the electronic oil pump; this arrangement makes the disassembly and assembly of the electronic oil pump more convenient, thereby facilitating the detection and maintenance of the circuit board components and the like in the electronic oil pump.
  • the second housing 2 and the third housing 7 can also be plugged, snapped or the like in other detachable manners.
  • the wall thickness of the third housing 7 at the second communication hole 73 is greater than the wall thickness of other portions of the third housing 7;
  • the main body portion 21 of the second casing 2 includes a cylindrical portion 201 and a second flange portion 24, the cylindrical portion 201 is formed with at least a portion of the second inner cavity, and the second flange portion 24 is self-circular.
  • the tubular portion 201 is formed to protrude toward the outer circumference of the cylindrical portion 201, and the second flange portion 24 is formed with a second threaded hole 241, and the second flange portion 24 has a wall thickness at the second threaded hole 241 larger than that of the second flange portion.
  • the wall thickness of the other parts of 24 may not include the second flange portion, and the cylindrical portion 201 is formed with the second threaded hole 241.
  • the cylindrical portion 201 is The wall thickness at the second threaded hole is greater than or equal to the wall thickness of other portions of the cylindrical portion.
  • FIG. 6 to FIG. 11 are schematic structural diagrams of a first embodiment of the first housing of FIG. 2 a .
  • the first housing 1 includes a first main body portion 14 and a first convex portion.
  • the diameter of the first main body portion 14 is smaller than the diameter of the first flange portion 15, and the first housing 1 includes at least two first communication holes 13 along the circumferential array of the first housing 1
  • the first communication hole 13 is formed in the first flange portion 15
  • the first communication hole 13 is a counterbore.
  • the first communication hole 13 is a cylindrical counterbore, and the first communication hole 13 includes a first counterbore 131 and a first through hole 132, wherein the aperture of the first counterbore 131 is larger than the aperture of the first through hole 132, and the depth of the first counterbore 131 is slightly larger than the height of the nut of the first screw 1231
  • the top surface of the first screw 1231 after the first screw 1231 is mounted is lower than the upper surface of the first flange portion 15, preventing the first screw 1231 from interfering with other components.
  • the first communication hole 13 can also be a tapered counterbore or a flat hole.
  • the first screw 1231 can be installed to ensure that the electronic oil pump and the gearbox mounting portion do not interfere with each other, and on the other hand, the electronic component
  • the overall structure of the oil pump is beautiful; the minimum distance between the edge of the first communication hole 13 and the outer circumferential surface of the first flange portion 15 of the first housing 1 is greater than or equal to 1 mm, so that the first communication hole 13 can ensure that the edge of the first communication hole 13 is not processed.
  • a notch may occur without damaging the outer peripheral surface of the first flange portion 15 of the first housing 1; the minimum distance between the edge of the first communication hole 13 and the outer peripheral surface of the first body portion 14 is greater than or equal to 1 mm, so that the setting can be The first communication hole 13 is prevented from damaging the outer peripheral surface of the first body portion 14 of the first casing 1 during processing.
  • the first housing 1 is further formed with a first flow port 11 , a second flow port 12 , a first communication cavity 112 , and a second communication cavity 121 .
  • the first flow A first communication cavity 112 is disposed between the port 11 and the hydraulic chamber 801.
  • the first communication cavity 112 communicates with the first flow port 11
  • the second communication cavity 121 is disposed between the second flow port 12 and the hydraulic pressure chamber 801.
  • the second communication cavity 121 Communicating with the second flow port 12; buffering the working medium through the first communication cavity 112 and the second communication cavity 121 is advantageous for improving vibration and noise.
  • the first flow port 11 is formed in the first body portion 14 of the first casing 1.
  • the first communication cavity 112 is disposed on the first flange portion 15 of the first casing 1.
  • the first flow port 11 is substantially round.
  • the shape of the "substantially circular shape” herein means that the roundness is within 1 mm.
  • the first flow port 11 may have other shapes, such as an elliptical shape or the like.
  • the first communication cavity 112 has a substantially circular arc shape.
  • the first communication cavity 112 includes a head portion 1121 and a tail portion 1122. The flow cross-sectional area of the first communication cavity 112 gradually increases from the head portion 1121 to the tail portion 1122.
  • the inner circumferential surface of the first communication cavity 112 is curved.
  • other features such as a concave portion or a convex portion may be provided on the inner circumferential surface of the first communication cavity; the first flow port 11 is disposed corresponding to the tail portion 1122; thus, the hydraulic pressure chamber 801 in FIG. 5 forms a certain degree of vacuum in the tail portion 1122, Conducive to the inhalation of the working medium.
  • the second communication cavity 121 and the first communication cavity 112 are distributed substantially circumferentially in the first housing 1 , and the connection between the center of the first flow opening 11 and the center of the second flow opening 12 substantially passes through the center of the first housing 1 . This is beneficial to make the entire circumference of the electronic oil pump available, which is beneficial to increase the working pressure of the working medium passing through the electronic oil pump.
  • the flow cross-sectional area at the junction of the second flow port 12 and the second communication cavity 121 is larger than the flow cross-sectional area of the other portion of the second communication cavity 121, and the arrangement is favorable for the hydraulic chamber 801 from FIG. 5 to enter the second communication cavity.
  • the working medium of 112 is discharged as soon as possible.
  • the fluid flow direction of the second flow port 12 and the fluid flow direction of the first flow port 11 are both disposed along the axial direction of the electronic oil pump, that is, the fluid flow direction of the second flow port 12 and the fluid flow direction flowing into the first flow port 11 are disposed at
  • the inflow direction of the working medium is arranged substantially parallel to the direction of the outflow, so that only a sealing portion needs to be provided between the transmission system and the structure is simple; of course, the fluid direction and the second flow of the first flow port
  • the fluid direction of the mouth may also be vertically disposed, and the second flow port may not be disposed in the first casing 1, such as the second casing 2, such that the inflow direction of the working medium is perpendicular or at an angle to the direction of the outflow.
  • FIG. 12 is a schematic structural view of a second embodiment of the first housing of FIG. 2a.
  • the first housing 1' The connecting hole 13' is a through hole, and the arrangement is advantageous for improving the connection strength between the first housing and the second housing.
  • the electronic oil pump 100 includes an outer sealing portion, and the outer sealing portion includes a first sealing ring 30 and a second sealing ring 32 sleeved on the outer circumferential surface of the second housing 2, and the first sealing ring 30 is adjacent to the first housing 1
  • the first sealing ring 30 is disposed on the second groove 271 of the second casing 2, and the second sealing ring 32 is sleeved on the second casing.
  • the third groove 281 of the body 2, in combination with FIG. 2, is arranged such that the working medium of the inlet and outlet can be separated from the space between the first sealing ring 30 and the second sealing ring 32, so that the two do not affect each other. Referring to FIG.
  • the electronic oil pump further includes a third sealing ring 31.
  • the first body portion 14 is provided with a first groove 141, and the third sealing ring 31 is disposed on the first casing 1 in combination with FIG.
  • the arrangement is advantageous for isolating the low-pressure working medium on the inlet side from the high-pressure working medium on the outlet side.
  • the main body portion 21 includes a cylindrical portion 201 including a first end portion 23 and a second end portion 27, and a second flange portion 24, the second flange portion 24 and the second end portion
  • the first end portion 23 is formed with a first threaded hole 231, and the first threaded hole 231 is distributed in a circumferential array or Evenly distributed, the first communication hole 13 of the first housing 1 is disposed corresponding to the first threaded hole 231 of the second housing 2, and the first housing 1 and the second housing 2 are connected by the first connecting portion 123;
  • the flange portion 24 is formed with a second threaded hole 241, and the second threaded hole 241 is disposed corresponding to the second communication hole 73 of the third housing 7; in conjunction with FIG.
  • the second housing 2 and the third housing 7 pass the second The connecting portion 232 is connected, wherein the first threaded hole 231 and the second threaded hole 241 are blind holes; specifically, the first housing 1 and the second housing 2 are connected by the first screw 1231, and the second housing 2 and the second housing The three housings 7 are connected by a second screw 2321.
  • the second flange portion 24 further includes a first protruding portion 242, and the second threaded hole 241 is formed in the first protruding portion 242, and the thickness of the second protruding portion 24 of the first protruding portion 242 is greater than the second convex portion.
  • the thickness of the other portions of the rim portion 24 is advantageous for improving the joint strength without increasing the overall thickness and weight of the second casing 2, which is advantageous for cost reduction.
  • the second flange portion 24 of the second casing 2 may not be provided with the first protrusion portion 242, and "sufficiently thick" herein means the second flange portion.
  • the thickness is greater than or equal to 3 mm.
  • the partition 22 further includes a first support portion 29 and a partition main body portion 221 , and the partition main body portion 221 can support the first rotor assembly 8 , and the first support portion 29 is directed from the partition main body portion 221 .
  • the two inner cavities 90 are convexly disposed; the first supporting portion 29 can directly or indirectly support the pump shaft 5; referring to FIG. 2b to FIG. 2d, according to the arrangement of the partitions, the first supporting portion 29 is also separated. The position of the part 22 changes accordingly, and will not be repeated here.
  • the second housing 2 is formed with an upper chamber 291 and a lower chamber 292 which are separated by a partition 22 which is integrally formed with the first support portion 29.
  • the electronic oil pump 100 includes a first bearing 60.
  • the pump shaft 5 is supported by the first bearing 60 on the first support portion 29, the first bearing 60.
  • the inner circumference is in contact with the outer peripheral surface of the pump shaft 5, and the outer circumference of the first bearing 60 is in contact with the inner circumference of the first support portion 29; specifically, referring to Fig. 15, the first support portion 29 includes a first housing portion 290, first The receiving portion 290 is formed with at least a portion of the first receiving cavity, and at least a portion of the inner peripheral surface of the first receiving portion 290 surrounds the first receiving cavity. Referring to FIG. 2a or FIG.
  • the pump shaft 5 passes through the first receiving cavity, at least part of the pump shaft.
  • the outer peripheral surface of the gap 5 is in clearance with the inner peripheral surface of the first receiving portion 290; or the first bearing 60 is disposed in the first receiving chamber, and in conjunction with FIG. 2a or FIG. 3, the pump shaft 5 passes through the first bearing 60, the first bearing 60
  • the outer peripheral surface is in close contact with the inner peripheral surface of the first receiving portion 290; specifically, in the embodiment, the electronic oil pump is provided with the first bearing 60, and the first bearing 60 is disposed in the first receiving chamber, and the pump shaft 5 passes through
  • the first bearing 60 is such that the first support portion 29 indirectly provides support for the pump shaft through the first bearing 60.
  • FIG. 17 is a schematic structural view of a fifth embodiment of the electronic oil pump
  • FIG. 18 is a second embodiment of the second housing of FIG. 17.
  • the pump shaft 5 is directly supported by the first support portion 29'; specifically, the first support portion 29' includes a first receiving portion 290', and the first receiving portion 290' can form at least a portion of the first receiving cavity, in this embodiment, the first The accommodating cavity is in communication with a portion of the first inner cavity 80, and the pump shaft 5 passes through the first accommodating cavity, and at least a portion of the outer peripheral surface of the pump shaft 5 is in clearance with the inner peripheral surface of the first accommodating portion 290'; the first supporting portion 29'
  • the inner circumferential surface is provided with a lubrication groove 298, which is advantageous for lubricating the pump shaft, thereby facilitating the rotation of the pump shaft.
  • the first support portion 29 can directly support the pump shaft by the tolerance fit between the first receiving portion 290' and the pump shaft 5 without The first bearing is additionally provided, thereby making the structure of the electronic oil pump more compact.
  • the partition 22 is provided with a communication hole 2933 which communicates with the upper chamber 291 and the lower chamber 292.
  • the pump shaft 5 projects into the upper chamber 291 through the communication hole 2933.
  • the first inner cavity 80 and the second inner cavity 90 are disposed separately from each other.
  • the electronic oil pump 100 includes a sealing portion, and at least a portion of the sealing portion passes through the first portion.
  • the support portion 29 supports, through the sealing portion 50 and the partition portion 22, the working medium in the first inner cavity 80 and the working medium in the second inner cavity 90 are not connected; specifically, referring to FIG. 15, the first support portion 29 includes
  • the second receiving portion 296 is formed with at least a portion of the second receiving cavity.
  • the inner peripheral surface of at least a portion of the second receiving portion 296 surrounds the second receiving cavity.
  • the sealing portion 50 includes an oil seal, and the oil seal is disposed on the second sealing portion 296.
  • a second accommodating chamber the pump shaft 5 in FIG. 2 passes through the oil seal, the inner circumference of the oil seal contacts at least a portion of the outer circumferential surface of the pump shaft 5, and the outer circumferential surface of the oil seal 50 is in sealing engagement with the inner circumferential surface of the second accommodating portion 296, such that The working medium of the first inner chamber can be prevented from flowing into the second inner chamber, thereby avoiding damage to the circuit board assembly in the second inner chamber.
  • FIG. 19 is a schematic structural view of a sixth embodiment of the electronic oil pump.
  • the pump shaft 5 passes through the second receiving portion 296 in FIG.
  • a gap is formed between the inner peripheral surface and the outer peripheral surface of at least a portion of the pump shaft 5, the gap being smaller than the penetration distance of the working medium in the first inner chamber 80 from the gap, the gap being able to prevent the first inner portion in FIG.
  • the working medium in the cavity 80 enters the second inner cavity 90 in FIG. 2a through the gap, and the size of the specific gap is determined by parameters such as the roughness of the outer peripheral surface of the pump shaft 5, the roughness of the inner peripheral surface of the second receiving portion, and the viscosity of the oil.
  • the working medium in the first inner chamber is not in communication with the working medium in the second inner chamber by the arrangement of the gap.
  • the electronic oil pump 100 further includes a second support portion 91.
  • the pump shaft 5 can be directly or indirectly supported by the second support portion 91, and the first support portion 29 and the second support portion 91 are coaxially disposed. Improve the stability of the support of the pump shaft 5.
  • the electronic oil pump 100 further includes a partition 9 disposed in the second inner cavity 90.
  • the second support portion 91 is integrally formed with the partition 9.
  • the second support portion 91 extends from the partition 9 to the second inner cavity. 90 protrusion arrangement, the structure of the second support portion 91 will be specifically described below.
  • the second support portion 91 can directly or indirectly provide support for the pump shaft 5; referring to Figures 25 to 28, the partition plate 9 includes a third receiving portion 911 formed with at least a portion of the third receiving chamber, at least in part The inner peripheral surface of the third receiving portion 911 surrounds the third receiving cavity.
  • the electronic oil pump includes a second bearing 70, and the second bearing 70 is disposed in the third receiving portion. The cavity, the pump shaft 5 in FIG.
  • the pump shaft 5 in FIG. 2a passes through the third receiving chamber, and at least part of the outer circumferential surface of the pump shaft 5 in FIG. 2a is in clearance with the inner circumferential surface of the third receiving portion 911.
  • the first bearing 60 and the second bearing 70 may be a rolling bearing or a sliding bearing.
  • the sliding bearing can meet the requirements of wear and rotation precision, and at the same time reduce the cost; for the high speed electronic oil pump The wear, rotation accuracy and bearing capacity of the bearing will be the key factors in the selection of the bearing. At this time, the rolling bearing should be used as much as possible.
  • the partition plate 9 includes a second supporting portion 91, a first bottom portion 92, a first annular convex portion 94, and a reinforcing rib 93.
  • the reinforcing ribs 93 are distributed in a circumferential array or evenly distributed, specifically, the reinforcing ribs.
  • the second support portion 91 and the first bottom portion 92 are connected to each other, so that the mechanical strength of the second support portion 91 can be ensured, so that the second support portion 91 is less likely to be deformed.
  • the shape of the reinforcing rib 91 is substantially triangular. Of course, it can also be other shapes, such as a rectangle or a trapezoid.
  • the first annular convex portion 94 is disposed closer to the outer edge of the partition plate 9 with respect to the second support portion 91, and the outer wall diameter of the first annular convex portion 94 is larger than the outer wall diameter of the second support portion 91; see FIG. 2a or FIG.
  • the partition plate 9 is fixedly coupled to the second casing 2, and specifically, in conjunction with FIGS. 33 and 15, the inner circumference of the first annular boss portion 94 and the cylindrical portion of the second casing 2 are interspersed.
  • the outer peripheral surface of the first bottom portion 92 of the partition plate 9 and the second housing 2 can be connected by an interference fit between the partition plate 9 and the second housing 2 by means of screws or bolts or crimping. .
  • the partition plate 9 further includes at least two third annular projections 95 extending axially away from the second support portion 91, specifically, in this embodiment.
  • the partition plate 9 includes three third annular convex portions 95.
  • the third annular convex portions 95 are distributed in a substantially circumferential array or evenly distributed.
  • the third annular convex portion 95 is centrally provided with a threaded hole 951, which is beneficial to the subsequent zero.
  • the components are fixedly mounted as in the mounting bracket 10 of Figure 2a.
  • the second housing 2 further includes a first step portion 294.
  • the first step portion 294 includes a first limiting surface 2941 and a second limiting surface 2942.
  • the first step portion 294 is disposed on the second housing.
  • the lower chamber 292 of the body 2, the first step portion 294 can be used as a limit of the stator assembly 4 in Fig. 2a in the axial direction of the electronic oil pump; see Figs. 15 and 16, the second housing 2 further includes a second step portion 295, the second step portion 295 includes a third limiting surface 2951 and a fourth limiting surface 2952.
  • the second step 295 is disposed closer to the second flange portion 24 of the second housing 2 than the first step portion 294, FIG.
  • the stator assembly 4 is connected to the second housing 2 in an interference fit. Specifically, the outer wall of the stator assembly 4 is in interference fit with the second limiting surface 2942 of at least a portion of the first step portion 294 of the second housing 2, The first limiting surface 2941 of the first step portion 294 abuts the stator assembly 4, thereby realizing the limitation of the first step portion 294 to the axial direction of the stator assembly 4 of FIG. 1 in the axial direction of the electronic oil pump, thereby facilitating the limitation of the stator assembly. Bit.
  • the third housing 7 includes a body 71 and a connecting portion 72 with the body 71 as a reference surface, the connecting portion 72 is located below the body 71, and the third housing 7 is formed with a second communicating hole 73.
  • the second communication hole 73 is disposed corresponding to the second screw hole 241 of the second housing 2 in FIG. 14 .
  • the second housing 2 and the third housing 7 are connected by the second screw 2321 in FIG. 2 a , of course. It can also be connected by other means, such as plugging, snapping or soldering; see FIG. 24, the connecting portion 72 includes a limiting portion 76, the height H2 of the limiting portion 76 and the second housing 2 of FIG.
  • the height H1 of the limiting portion 243 is substantially equal.
  • substantially equal means that the absolute value of the difference in height is within 0.3 mm, so that the contact surface of the third casing 7 and the second casing 2 can be ensured as much as possible.
  • the fitting ensures that the third housing 7 does not tilt during the assembly process, thereby avoiding the influence of the mating of the mating socket and the connector.
  • the third housing 7 is also formed with a mounting hole 77 for connection to a gearbox or drive unit, which in the present embodiment includes two mounting holes 77.
  • the third housing 7 is further formed with a protruding rib 74 integrally molded with the third housing 7, and the protruding rib 74 is protruded away from the second housing 2.
  • the protruding ribs 74 are disposed on the third housing 7 as much as possible, thereby increasing the heat dissipation area, which is advantageous for heat dissipation of the circuit board.
  • the lateral cross-sectional shape of the protruding ribs 74 is Rectangular, of course, the transverse cross-sectional shape of the raised ribs may also be other shapes, such as trapezoidal, triangular, curved, and the like.
  • the circuit board assembly 6 includes a circuit board 61, electronic components, and a mounting bracket 10 disposed between the circuit board 61 and the partition 9.
  • the mounting bracket 10 is fixedly connected to the partition plate 9. Specifically, the mounting bracket 10 and the partition plate 9 are connected by screws or bolts. Of course, the mounting bracket 10 and the partition plate 9 can also be connected by other connection methods, such as riveting connection and the like.
  • the mounting bracket 10 is electrically connected to the circuit board 61.
  • the mounting bracket 10 can carry a large-volume electronic component. Referring to FIG. 29 to FIG. 33, the mounting bracket 10 includes a receiving portion 102, and the receiving portion 102 is integrally molded with the mounting bracket 10.
  • the housing portion 102 includes a bottom portion 1021 and a side portion 1022.
  • the bottom portion 1021 and the side portion 1022 form a receiving chamber.
  • the receiving chamber is provided with a large-volume electronic component.
  • the large portion is large.
  • the volume of the electronic component is a capacitor 101.
  • the bottom portion 1021 is substantially curved, and the bottom portion 1021 is in contact with a portion of the outer peripheral surface of the large capacitor 101.
  • the bottom portion 1021 and the side portion 1022 can be disposed.
  • the mounting bracket 10 further includes at least two latching portions 103.
  • the mounting bracket includes two latching portions 103, and the card is configured to facilitate the circumferential positioning of the capacitors 101.
  • the portions 103 are respectively disposed on the two sides of the capacitor 101, and the latching portion 103 includes a first surface 1031.
  • the capacitor 101 first contacts the first surface 1031 of the latching portion 103.
  • the first inclined surface 1031 is tangent to the outer peripheral surface of the capacitor 101.
  • a part of the force acts on the first surface 1031, so that the buckle portion 103 is flared outward, when the capacitor 101 is
  • a part of the outer peripheral surface is in contact with the bottom supporting portion 1021, a part of the outer peripheral surface of the capacitor 101 and the first surface of the latching portion 103 do not generate a force, and at this time, the latching portion 103 that is originally in the open state returns to the initial position, and thus is set.
  • the mounting bracket 10 further includes at least two through holes 104 distributed in a substantially circumferential array or evenly distributed.
  • the number of the through holes 104 and the threaded holes of the third annular projection portion 95 of the partition plate 9 The number of 951 is substantially equal.
  • the mounting bracket 10 includes three through holes 104, and the number of the through holes 104 is equal to the number 951 of the threaded holes of the third annular boss 95 of the partition 9.

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Abstract

一种电子油泵（100），包括泵壳体、第一转子组件（8）、泵轴（5）、第二转子组件（3）、定子组件（4）以及线路板组件（6），泵壳体至少包括第一壳体（1）、第二壳体（2）以及第三壳体（7），第一壳体（1）和第二壳体（2）之间形成第一内腔（80），第二壳体（2）和第三壳体（7）之间形成第二内腔（90），第一转子组件（8）容置于第一内腔（80），第二转子组件（3）、定子组件（4）以及线路板组件（6）容置于第二内腔（90），第一内腔（80）与第二内腔（90）通过隔部（22）隔离设置，两者的工作介质不连通。

Description

电子油泵
本申请要求于2017年08月31日提交中国专利局、申请号为201710769833.8、发明名称为“电子油泵”的中国专利申请的优先权，其全部内容通过引用结合在本申请中。
技术领域
本发明涉及一种车辆领域，尤其涉及车辆润滑系统和/或冷却系统的零部件。
背景技术
车辆行业迅猛发展，随着车辆性能向着更安全、更可靠、更稳定、全自动智能化和环保节能方向发展，电子油泵被大量运用于车辆润滑系统和冷却系统中，并能很好的满足市场的要求。
电子油泵主要为车辆的润滑系统和/或冷却系统提供动力源，如何设计电子油泵的结构，以改善电子油泵的结构和性能是亟待解决的技术问题。
发明内容
本发明的目的在于提供一种电子油泵。
为实现上述目的，本发明的一种实施方式采用如下技术方案：
一种电子油泵，包括泵壳体、第一转子组件、泵轴、第二转子组件、定子组件以及线路板组件，所述泵壳体至少包括第一壳体、第二壳体以及 第三壳体，所述电子油泵具有泵内腔，所述泵内腔包括第一内腔和第二内腔，形成所述第一内腔的侧壁包括部分所述第一壳体和部分所述第二壳体，形成所述第二内腔的侧壁包括部分所述第二壳体和部分所述第三壳体；所述第一转子组件容置于所述第一内腔，所述第二转子组件、所述定子组件以及所述线路板组件容置于所述第二内腔；所述电子油泵包括隔部，所述隔部位于所述第一壳体与所述第三壳体之间，所述第一内腔和所述第二内腔位于所述隔部的两侧；所述第一内腔和所述第二内腔通过所述隔部隔离设置，或者所述电子油泵还包括密封部，所述第一内腔和所述第二内腔通过所述隔部以及所述密封部隔离设置；由于电子油泵的第一内腔中的工作介质和第二内腔中的工作介质不连通，工作介质不会进入第二内腔，这样第二内腔不需要额外设置其他结构以保证第二内腔的零部件不受到腐蚀，使得电子油泵的密封性能更好，同时结构更加简单，有利于降低成本。
附图说明
图1是本发明的电子油泵的第一种实施方式的立体结构示意图；
图2a是图1中电子油泵的一个方向截面结构示意图；
图2b是本发明电子油泵的第二种实施方式的一个剖面结构示意图；
图2c是本发明电子油泵的第三种实施方式的一个剖面结构示意图；
图2d是本发明电子油泵的第四种实施方式的一个剖面结构示意图；
图3是图1中电子油泵的另一个方向截面结构示意图；
图4是图1中电子油泵的一个正视结构示意图；
图5是未装配图1中的第一壳体的电子油泵的正视结构示意图；
图6是图1中第一壳体的第一种实施方式的一个方向立体结构示意图；
图7是图1中第一壳体的第一种实施方式的另一个方向的立体结构示意图；
图8是图6中第一壳体的一个方向上的正视结构示意图；
图9是图6中第一壳体的另一个方向上的正视结构示意图；
图10是图6中第一壳体的一个方向的剖面结构示意图；
图11是图6中第一壳体的另一个方向的剖面结构示意图；
图12是图1中第一壳体的另一种实施方式的的剖面结构示意图；
图13是图1或图2a中第二壳体的第一种实施方式的一个方向的立体结构示意图；
图14是图1或图2a中第二壳体的第一种实施方式的另一个方向的立体结构示意图；
图15是图13中第二壳体的一个剖面结构示意图；
图16是图15中第二壳体的B部局部放大结构示意图；
图17是本发明的电子油泵的第五种实施方式的一个剖面结构示意图；
图18是图17中第二壳体的一个剖面结构示意图；
图19是本发明电子油泵的第六种实施方式的一个剖面结构示意图；
图20是图1中第三壳体的一个方向的立体结构示意图；
图21是图19中第三壳体的一个正视结构示意图；
图22是图1中第三壳体的另一个方向的立体结构示意图；
图23是图19中第三壳体的另一个正视结构示意图；
图24是图19中第三壳体的一种剖面结构示意图；
图25是图2a至图3中隔板的一个方向的立体结构示意图；
图26是图2a至图3中隔板的另一个方向的立体结构示意图；
图27是图25或图26中隔板的一个正视结构示意图；
图28是图25或图26中隔板的一个截面结构示意图；
图29是图2a至图3中安装支架与电容的组合的一种立体结构示意图；
图30是图29中安装支架与电容的组合的主视结构示意图；
图31是图2a至图3中安装支架的一种立体结构示意图；
图32是图31中安装支架的一种主视结构示意图；
图33是图31中安装支架的C部的局部放大结构示意图。
具体实施方式
下面结合附图和具体实施例对本发明作进一步说明：
电子油泵能够应用于车辆润滑系统和/或冷却系统中，能够为车辆润滑系统和/或冷却系统中的工作介质提供流动的循环动力，车辆润滑系统和/或冷却系统能够为传动系统提供润滑油和/或冷却油。
参见图1、图2a以及图3，电子油泵100包括泵壳体、第二转子组件3、定子组件4、泵轴5、第一转子组件8以及线路板组件6，第一转子组 件8、第二转子组件3以及线路板组件6沿电子油泵100的轴向排布，这样使得电子油泵100轴向排布更加紧凑，具体地，第二转子组件3设置于第一转子组件8和线路板组件6之间；电子油泵具有泵内腔，第二转子组件3、定子组件4、泵轴5、第一转子组件8以及线路板组件6容置于泵内腔。电子油泵100工作时，线路板组件6通过控制通过定子组件4的电流按照一定的规律变化，从而控制定子组件4产生变化的激励磁场，第二转子组件3在激励磁场的作用下转动，第二转子组件3通过泵轴5带动第一转子组件8转动，第一转子组件8转动时，使得工作介质被压出第二流口从而产生流动的动力。
泵壳体至少包括第一壳体、第二壳体和第三壳体；具体地，参见图2a，本实施例中，泵壳体包括第一壳体1、第二壳体2以及第三壳体7；电子油泵能够形成泵内腔，本实施例中，泵内腔包括第一内腔80和第二内腔90，第一内腔80内能够有工作介质流过，第一转子组件8设置于第一内腔80；第二内腔90无工作介质通过，定子组件4、第二转子组件3和线路板组件6设置于第二内腔90，形成第一内腔80的侧壁包括部分第一壳体1和第二壳体20，形成第二内腔90的侧壁包括部分第二壳体20和部分第三壳体7；参见图2a，电子油泵100包括隔部22，第一内腔80和第二内腔90分别位于隔部22的两侧，电子油泵100还包括密封部50，第一内腔80和第二内腔90通过隔部22以及密封部50隔离设置，这样通过隔部22以及密封部50的隔离使得第一内腔80中的工作介质和第二内腔90中的工作介质不连通；这样设置使定子组件4和线路板组件6与工作介质充分分开，从而保证定子组件和电路板的性能不会受到工作介质的影响；具体关于密封部50 和隔部22的结构描述见下文。
参见图1、图2a和图3，第一转子组件8靠近泵轴5的一端设置，第一转子组件8与部分泵轴5连接，第二转子组件3靠近泵轴5的另一端设置，第二转子组件3与部分泵轴5连接，这样使得第二转子组件3能够通过泵轴5带动第一转子组件8转动，线路板组件6靠近安装有第二转子组件3的泵轴5的一端设置；泵轴5一端伸入第一内腔80，泵轴5的另一端伸入第二内腔90，具体地，靠近第一转子组件8的泵轴5的一端伸入第一内腔80，靠近第二转子组件3的泵轴5的另一端深入第二内腔90。
电子油泵包括隔部，第一内腔和第二内腔分别位于隔部的两侧，隔部位于第一壳体和第三壳体之间，第一转子组件和第二转子组件设置于隔部的两侧，第一内腔和第二内腔通过隔部隔离设置；这里关于隔部的设置将介绍以下四种实施方式。
参见图1和图2a,图1和图2a为电子油泵的第一种实施方式的结构示意图；以下将对电子油泵的第一种实施方式的结构进行说明。
参见图1和图2a，本实施例中，泵壳体包括第一壳体1、第二壳体2以及第三壳体7，第二壳体2比第一壳体1更靠近第二转子组件3，第一壳体1和第二壳体2可拆卸连接，第二壳体2与第三壳体7可拆卸连接；这样相对于不可拆卸的壳体连接而言，便于对设置于腔体内的零部件进行检测和维修，比如打开第一壳体1与第二壳体2的连接，可以检测第一转子组件8的运行情况并根据需要更换第一转子组件8，打开第二壳体2和第三壳体7的连接可以检测线路板组件6的运行情况并根据需要对线路板组 件进行维修和更换，这样不必破坏电子油泵的其他零部件，有利于降低成本，提高维修效率。具体地，本实施例中，第一壳体1和第二壳体2通过第一连接部可拆卸连接，第二壳体2和第三壳体7通过第二连接部可拆卸连接，第一连接部和第二连接部未设置于第一内腔80或第二内腔90，具体关于第一连接部和第二连接部的描述见下文。
参见图2a和图15，第二壳体2包括隔部22，隔部22能够支撑第一转子组件8，第二壳体2还包括主体部21，主体部21沿第二壳体2的轴向延伸设置，主体部21呈圆筒状，主体部21的内壁能够形成至少部分图2a中的第二内腔90的侧壁，第一壳体1和主体部21，以及主体部21和第三壳体7均可拆卸连接；本实施例中，形成图2a中的第一内腔80的侧壁包括部分第一壳体1和第二壳体2，形成图2a中的第二内腔90的侧壁包括部分第二壳体2和第三壳体7；本实施例中，隔部22沿着主体部21的内壁周向设置，即隔部22与主体部21固定，本实施例中，隔部22与主体部21一体成形，隔部22与主体部21大致垂直设置，这里的“大致”是指垂直度在1mm范围以内，本实施例中，隔部22设置于第二壳体2的中上部，隔部22与第三壳体7之间形成第二内腔90，第一壳体1和隔部22之间形成第一内腔80，这样的结构可以保证隔部22和主体部21的连接处的密封性，可以防止图2a中的第一内腔80中的工作介质在主体部21和隔部22的连接处泄露，结构简单。
参见图2b,图2b为电子油泵的第二种实施方式的结构示意图,以下将对电子油泵的第二种实施方式的结构进行说明。
在电子油泵的第二种实施方式中，电子油泵还包括第四壳体，第二壳体包括隔部；具体地，参见图2b,电子油泵100a包括第一壳体1a、第二壳体2a、第三壳体7a以及第四壳体40a,第一壳体1a与第二壳体2a、第四壳体40a可拆卸连接，第三壳体7a与第四壳体40a可拆卸连接；具体地，第二壳体20a包括主体部21a,第一壳体1a与第二壳体2a的主体部21a通过螺钉或螺栓连接，第二壳体2a的主体部21a与第四壳体40a通过螺钉或螺栓连接；电子油泵100b包括隔部22a,隔部22a与第二壳体2a一体成形，具体地，隔部22a与第二壳体20a的主体部一体成形；相较于电子油泵的第一种实施方式，本实施方式中，电子油泵还包括第四壳体40a,且本实施例中第二壳体20a与电子油泵的第一种实施方式中的第二壳体结构不同，即相当于将电子油泵第一种实施方式中的第二壳体分成两个零部件，这样相对有利于节省零部件加工时的原材料，从而有利于减少加工时的材料成本。
参见图2c,图2c为电子油泵的第三种实施方式的结构示意图,以下将对电子油泵的第三种实施方式的结构进行说明。
在电子油泵的第三种实施方式中，隔部为单独的一个零部件；具体地，参见图2c,电子油泵100b包括第一壳体1b、第二壳体2b、第三壳体7b以及第四壳体40b,第一壳体1b与第二壳体2b可拆卸连接，第三壳体7b与第四壳体40b可拆卸连接；本实施例中，电子油泵100b还包括隔部22b，隔部22b设置于第二壳体2b与第四壳体40b之间，本实施例中，隔部22b与第一壳体1b、第二壳体2b可拆卸连接，且第一壳体1b、第二壳体2b、 隔部22b、第四壳体40b通过螺钉或螺栓可拆卸连接，当然，为了防止各个零部件连接处的密封性，可在连接处设置密封圈；相较于电子油泵的第一种实施方式，本实施方式中，隔部为单独的一个零部件，这样有利于相对减小第二壳体的加工难度以及节约零部件加工时的原材料，从而有利于减少加工时的材料成本。
参见图2d,图2d为电子油泵的第四种实施方式的结构示意图,以下将对电子油泵的第四种实施方式的结构进行说明。
在电子油泵的第四种实施方式中，电子油泵还包括第四壳体，第四壳体包括隔部；具体地，参见图2d,电子油泵100c包括第一壳体1c、第二壳体20c、第三壳体7c以及第四壳体40c，第一壳体1c与第二壳体2c、第四壳体组件40c可拆卸连接，第三壳体7c与第四壳体组件40c可拆卸连接；具体地，第一壳体1c与第二壳体2a以及第四壳体40c通过螺钉或螺栓连接，第四壳体40c与第三壳体7c通过螺钉或螺栓连接；第四壳体40c包括隔部22c,隔部22c能够支撑第一转子组件；相较于电子油泵的第一种实施方式，本实施例中，相当于将电子油泵第一种实施方式中的第二壳体分成两个零部件，这样相对有利于节省零部件加工时的原材料，从而有利于减少加工时的材料成本。
参见图2a至图5，本实施例中，电子油泵100包括第一转子组件8，第一转子组件8包括第一转子81和第二转子82，第一转子81包括多个外齿，第二转子82包括多个内齿，参见图5，第二转子82的内齿和第一转子81的外齿之间形成有液压腔801，本实施例中，第二转子82套设于第 一转子81的外周，第二转子82的部分内齿与第一转子81的部分外齿啮合。再参见图1至图5，电子油泵100包括第一流口11和第二流口12，第一流口11用于工作介质的流入，第二流口12用于工作介质的流出，具体地，工作介质能够通过第一流口11进入液压腔801，工作介质能够通过第二流口12离开液压腔801；由于第一转子81与第二转子82之间存在一定的偏心距，第一转子81在转动时，第一转子81的部分外齿与第二转子82的部分内齿啮合，从而带动第二转子82转动，在第一转子组件8旋转一圈的过程中，液压腔801内的容积发生变化，具体地，当第一转子组件8从起始处转动到某一角度时，液压腔801内的容积逐渐增大从而形成局部真空，工作介质就从第一流口11被吸入至液压腔801，当第一转子组件8继续转动时，充满工作介质的液压腔801的容积逐渐减小，工作介质受到挤压，从而使得进入液压腔801内的工作介质被压出至第二流口12从而产生流动的动力。本实施例中，第一内腔80与第一流口11、第二流口12连通，第一内腔80和第二内腔90不连通，由于电子油泵的第一内腔和第二内腔不连通，工作介质不会进入第二内腔，这样第二内腔不需要额外设置其他结构以保证第二内腔的零部件不受到腐蚀，使得电子油泵的密封性能更好，同时结构更加简单，有利于降低成本。本实施例中，第一流口11和液压腔801之间设置有第一连通腔连通，第二流口12和液压腔801之间设置第二连通腔，这样的结构通过第一连通腔和第二连通腔对工作介质进行缓存，有利于改善振动和噪音，具体结构描述见下文。
参见图1至图8，第一壳体1与第二壳体2通过第一连接部123可拆卸连接，第二壳体2与第三壳体7通过第二连接部232可拆卸连接，第一 连接部124和第二连接部234未设置于第一内腔80或第二内腔90；具体地，本实施例中，第一连接部124包括第一螺钉1231(如图2a所示)，参见图6，为了提高连接的可靠性，第一壳体1包括第一凸缘部15，第一凸缘部15沿电子油泵的径向延伸，第一凸缘部15成形有第一连通孔13，第一连通孔13靠近第一凸缘部15的边缘设置，第二壳体2成形有第一螺纹孔231，第一螺纹孔231沿第二壳体2的主体部21成形，第一螺钉1231穿过第一连通孔13自第一壳体1方向安装并与第二壳体2螺纹连接；这样设置使得至少部分第一螺钉1231在壳体的外面可以拆装，这样设置使电子油泵的拆装更加方便，从而有利于电子油泵中第一转子组件的维修，当然第一壳体1与第二壳体2之间也可以通过其他的方式连接，譬如插接、卡接等可拆卸的连接方式。参见图11，为了防止电子油泵安装于传动系统时与其他部件的干涉，第一连通孔13为第一沉台孔131和第一贯穿孔132，其中第一沉台孔131的孔径大于第一贯穿孔132的孔径，第一沉台孔131的深度略大于第一螺钉1231的螺帽的高度，这样第一螺钉1231安装后第一螺钉1231的顶面低于第一凸缘部15的上表面，防止第一螺钉1231对其他部件的干涉；当然在传动系统对应装配电子油泵的部分设置第一螺钉避让部的情况下，可以不必在第一连通孔13设置第一沉台孔131，只包括第一贯穿孔132即可，这样可以使得第一连通孔13更加靠近第一凸缘部15的径向边缘或者使得第一连通孔13与第一凸缘部15的边缘的距离越大，方便第一连通孔布局。
参见图2a，第二壳体2a与第三壳体7通过第二连接部232可拆卸连接，具体地，本实施例中，第二连接部232包括第二螺钉2321，参见图14 和图19，第三壳体7成形有第二连通孔73，第二壳体2成形有第二螺纹孔241，第二螺纹孔241沿第二壳体2的主体部21成形，第二螺钉2321自第三壳体7的方向安装并与第二壳体2螺纹连接。当然，也可以第三壳体7成形有第二螺纹孔，第二壳体2成形有第二连通孔，第二螺钉2321自第二壳体2的方向安装并与第三壳体7螺纹连接，具体结构根据电子油泵的需求进行设计；这样设置使电子油泵的拆装更加方便，从而有利于电子油泵中线路板组件等零部件的检测和维修。当然第二壳体2与第三壳体7也可以通过插接、卡接或等其他的可拆卸的连接方式。为了提高第二壳体2和第三壳体7的连接可靠性，并且简化结构，第三壳体7在第二连通孔73处的壁厚大于第三壳体7的其他部位的壁厚；参见图13和图14,第二壳体2的主体部21包括圆筒部201和第二凸缘部24，圆筒部201形成有至少部分第二内腔，第二凸缘部24自圆筒部201向圆筒部201的外周凸出形成，第二凸缘部24成形有第二螺纹孔241，第二凸缘部24在第二螺纹孔241处的壁厚大于第二凸缘部24的其他部位的壁厚。当然，为了简化结构，减少电子油泵的外形尺寸，第二壳体2也可以不包括第二凸缘部，圆筒部201成形有第二螺纹孔241，为了保证连接强度，圆筒部201在所述第二螺纹孔处的壁厚大于等于所述圆筒部其他部分的壁厚。
参见图6至图11，图6至图11为图2a中第一壳体的第一种实施方式的结构示意图，本实施方式中，第一壳体1包括第一主体部14和第一凸缘部15，第一主体部14的直径小于第一凸缘部15的直径，第一壳体1至少包括2个第一连通孔13，第一连通孔13沿第一壳体1的圆周阵列分布，本实施方式中，第一连通孔13成形于第一凸缘部15，第一连通孔13为沉 孔，具体地，第一连通孔13为柱形沉孔，第一连通孔13包括第一沉台孔131和第一贯穿孔132，其中第一沉台孔131的孔径大于第一贯穿孔132的孔径，第一沉台孔131的深度略大于第一螺钉1231的螺帽的高度，这样第一螺钉1231安装后第一螺钉1231的顶面低于第一凸缘部15的上表面，防止第一螺钉1231对其他部件的干涉。当然第一连通孔13也可以为锥形沉孔或锪平面孔，这样设置一方面可以保证第一螺钉1231安装后使电子油泵与变速箱的安装部不会发生结构干涉，另一方面使电子油泵的整体结构美观；第一连通孔13的边缘与第一壳体1的第一凸缘部15的外周面的最小距离大于等于1mm，这样设置可以保证第一连通孔13在加工时边缘不会出现缺口，同时不会破坏第一壳体1的第一凸缘部15的外周面；第一连通孔13的边缘与第一主体部14的外周面的最小距离大于等于1mm，这样设置可以防止第一连通孔13在加工时破坏第一壳体1的第一主体部14的外周面。
参见图6至图11，第一壳体1还成形有第一流口11、第二流口12、第一连通腔112以及第二连通腔121，具体地，结合图2a和图5，第一流口11和液压腔801之间设置第一连通腔112，第一连通腔112与第一流口11连通，第二流口12和液压腔801之间设置第二连通腔121，第二连通腔121与第二流口12连通；通过第一连通腔112和第二连通腔121对工作介质进行缓存，有利于改善振动和噪音。本实施例中，第一流口11成形于第一壳体1的第一主体部14，第一连通腔112设置于第一壳体1的第一凸缘部15，第一流口11大致呈圆形，这里的“大致呈圆形”是指圆度在1mm以内，当然第一流口11也可以为其他形状，比如椭圆形等其他形状；参见 图9，第一连通腔112大致呈圆弧形，第一连通腔112包括头部1121和尾部1122，第一连通腔112的流通截面积自头部1121到尾部1122逐渐增加，本实施例中，第一连通腔112的内周面为弧形，当然也可以在第一连通腔的内周面设置凹部或凸部等其他特征；第一流口11与尾部1122对应设置；这样配合图5中的液压腔801在尾部1122形成一定的真空度，有利于工作介质的吸入。
第二连通腔121和第一连通腔112在第一壳体1大致呈周向分布，第一流口11的中心和第二流口12的中心的连线大致经过第一壳体1的中心，这样有利于使得整个电子油泵整个圆周得到利用，有利于提高经过电子油泵的工作介质的工作压力。
第二流口12与第二连通腔121连接处的流通截面积大于第二连通腔121的其他部位的流通截面积，这样设置有利于使得自图5中的液压腔801进入到第二连通腔112的工作介质尽快排出。
本实施例中，第二流口12的流体流向与第一流口11的流体流向均沿电子油泵的轴向设置，即第二流口12的流体流向和流入第一流口11的流体流向设置于电子油泵的同一个方向，工作介质的进流方向与出流方向大致平行设置，这样设置使得与传动系统之间只需要设置一个密封部，结构简单；当然第一流口的流体方向与第二流口的流体方向也可以垂直设置，第二流口也可以不设置在第一壳体1，比如设置于第二壳体2，使得工作介质进流方向与出流方向垂直设置或成角度设置，以满足不同工况下电子油泵与传动系统的配合安装或将电子油泵外挂于传动系统的外部。
参见图12，图12为图2a中第一壳体的第二种实施方式的结构示意图，相较于第一壳体的第一种实施方式，本实施方式中，第一壳体1’的连接孔13’为通孔，这样设置有利于提高第一壳体与第二壳体的连接强度。
参见图2a，电子油泵100包括外密封部，外密封部包括套设于第二壳体2外周面的第一密封圈30与第二密封圈32，第一密封圈30靠近第一壳体1设置，第二密封圈32靠近第三壳体7设置，结合图15，第一密封圈30套设于第二壳体2的第二沟槽271，第二密封圈32套设于第二壳体2的第三沟槽281，结合图2，这样设置使得进出口的工作介质能够与第一密封圈30和第二密封圈32之间的空间隔开，从而使得两者之间互不影响；参见图2a，本实施例中，电子油泵还包括第三密封圈31，结合图10，第一主体部14设置有第一沟槽141，第三密封圈31设置于第一壳体1的第一沟槽141内，当电子油泵100装入汽车变速箱或汽车的电驱动单元内，这样设置有利于将进口侧的低压工作介质与出口侧的高压工作介质隔离开。
参见图13和图14，主体部21包括圆筒部201和第二凸缘部24，圆筒部201包括第一端部23和第二端部27，第二凸缘部24与第二端部27一体成形，第一端部23远离第二凸缘部24设置，具体地，本实施例中，第一端部23成形有第一螺纹孔231，第一螺纹孔231呈圆周阵列分布或均匀分布，第一壳体1的第一连通孔13与第二壳体2的第一螺纹孔231对应设置，第一壳体1与第二壳体2通过第一连接部123连接；第二凸缘部24成形有第二螺纹孔241，第二螺纹孔241与第三壳体7的第二连通孔73对 应设置；结合图2a，第二壳体2与第三壳体7通过第二连接部232连接，其中第一螺纹孔231和第二螺纹孔241均为盲孔；具体地，第一壳体1与第二壳体2通过第一螺钉1231连接，第二壳体2与第三壳体7通过第二螺钉2321连接，。本实施例中，第二凸缘部24还包括第一突出部242，第二螺纹孔241成形于第一突出部242，第一突出部242所在第二凸缘部24的厚度大于第二凸缘部24的其他部位的厚度，这样有利于提高连接强度，又不会增加第二壳体2的整体厚度以及重量，有利于降低成本。当然，当第二壳体2的第二凸缘部24的厚度足够厚时，第二凸缘部24也可以不设置第一突出部242，这里的“足够厚”是指第二凸缘部的厚度大于等于3mm。
参见图2a和图15,隔部22还包括第一支撑部29和隔部主体部221，隔部主体部221能够支撑第一转子组件8，第一支撑部29自隔部主体部221向第二内腔90凸起设置；第一支撑部29能够直接或间接为泵轴5起到支撑的作用；参见图2b至图2d,根据隔部的设置，第一支撑部29也会随着隔部22位置的不同而发生相应的变化，在此就不一一赘述了。
参见图15,第二壳体2成形有上腔291和下腔292，上腔291和下腔292通过隔部22分隔，隔部22与第一支撑部29一体成形。
图15为图2a中第二壳体的第一种实施方式，结合图2,电子油泵100包括第一轴承60，泵轴5通过第一轴承60支撑于第一支撑部29，第一轴承60的内周与泵轴5的外周面接触，第一轴承60的外周与第一支撑部29的内周接触；具体地，参见图15，第一支撑部29包括第一容纳部290，第一容纳部290成形有至少部分第一容纳腔，至少部分第一容纳部290的内 周面围绕第一容纳腔，结合图2a或图3，泵轴5穿过第一容纳腔，至少部分泵轴5的外周面与第一容纳部290的内周面间隙配合；或者第一轴承60设置于第一容纳腔，结合图2a或图3，泵轴5穿过第一轴承60，第一轴承60的外周面与第一容纳部290的内周面紧配；具体地，本实施例中，电子油泵设置有第一轴承60，且第一轴承60设置于第一容纳腔，泵轴5穿过第一轴承60，这样第一支撑部29通过第一轴承60间接地为泵轴提供了支撑。
参见图17，图17为电子油泵的第五种实施方式的结构示意图，图18为图17中第二壳体的第二种实施方式，参见图17和图18，本实施例中，泵轴5直接支撑于第一支撑部29’；具体地，第一支撑部29’包括第一容纳部290’，第一容纳部290’能够形成至少部分第一容纳腔，本实施例中，第一容纳腔与部分第一内腔80连通，泵轴5穿过第一容纳腔，至少部分泵轴5的外周面与第一容纳部290’的内周面间隙配合；第一支撑部29’的内周面设置有润滑槽298，这样设置有利于润滑泵轴，从而有利于泵轴的转动。相较于电子油泵的第一种实施方式，本实施方式中，可通过第一容纳部290’与泵轴5之间的公差配合使得第一支撑部29直接为泵轴提供支撑，而不需要额外地设置第一轴承，进而使电子油泵的结构更加紧凑。
参见图15,隔部22设置有连通孔2933，连通孔2933连通上腔291和下腔292，结合图2a，泵轴5通过连通孔2933伸入上腔291。
第一内腔80和第二内腔90隔离设置，这里关于隔离设置有两种实施方式；第一种实施方式中，参见图2a，电子油泵100包括密封部，至少部分该密封部通过第一支撑部29支撑，通过密封部50以及隔部22使得第一 内腔80中的工作介质和第二内腔90中的工作介质不连通；具体地，参见图15，第一支撑部29包括第二容纳部296，第二容纳部296成形有至少部分第二容纳腔，至少部分第二容纳部296的内周面围绕上述第二容纳腔，结合图2a，密封部50包括油封，油封设置于第二容纳腔，图2中的泵轴5穿过油封，油封的内周与至少部分泵轴5的外周面接触，油封50的外周面与第二容纳部296的内周面密封配合，这样可以防止第一内腔的工作介质流入第二内腔，从而避免损坏第二内腔内的线路板组件。
第二种实施方式中，参见图19，图19为电子油泵的第六种实施方式的结构示意图，结合图15，泵轴5穿过图15中的第二容纳部296，第二容纳部296的内周面与至少部分泵轴5的外周面之间形成有间隙，该间隙小于第一内腔80内的工作介质从该间隙流出的渗透距离，该间隙能够阻止图2中的第一内腔80内的工作介质通过该间隙进入图2a中的第二内腔90，具体间隙的大小与泵轴5外周面的粗糙度、第二容纳部内周面的粗糙度以及油的黏度等参数决定，在第二种实施方式中，通过间隙的设置使得第一内腔中的工作介质与第二内腔中的工作介质不连通。
参见图2a，电子油泵100还包括第二支撑部91，泵轴5能够直接或间接地支撑于第二支撑部91、第一支撑部29和第二支撑部91同轴设置，这样设置有利于提高泵轴5支撑的稳定性。
参见图2a，电子油泵100还包括隔板9，隔板9设置于第二内腔90，第二支撑部91与隔板9一体成形，第二支撑部91自隔板9向第二内腔90凸起设置，以下将对第二支撑部91的结构进行具体介绍。
第二支撑部91能够直接或间接地为泵轴5提供支撑；参见图25至图 28，隔板9包括第三容纳部911，第三容纳部911成形有至少部分第三容纳腔，至少部分第三容纳部911的内周面围绕第三容纳腔，这里有两种实施方式，第一种实施方式中，结合图2a，电子油泵包括第二轴承70，第二轴承70设置于第三容纳腔，图2a中的泵轴5穿过第二轴承70，具体地，第二轴承70的内周与至少部分泵轴5的外周面接触，第二轴承70的外周面与第三容纳部911的内周面紧配；这样第一支撑部29通过第二轴承70间接地为泵轴提供了支撑。第二种实施方式中，图2a中的泵轴5穿过第三容纳腔，至少部分图2a中的泵轴5的外周面与第三容纳部911的内周面间隙配合，这样可通过第三容纳部911与图2a中的泵轴5之间的公差配合使得第二支撑部91直接为泵轴提供支撑，而不需要额外地设置第二轴承，进而使电子油泵的结构更加紧凑。参见图2a，第一轴承60和第二轴承70可以为滚动轴承也可以为滑动轴承，对于中低速电子油泵采用滑动轴承能够满足磨损的要求和旋转精度的要求，同时能够降低成本；对于高速电子油泵，磨损、旋转精度以及轴承的承载能力将是轴承选型时关键影响因素，此时尽量采用滚动轴承。
参见图25至图28，隔板9包括第二支撑部91、第一底部92、第一环形凸起部94、加强筋93；加强筋93呈圆周阵列分布或均匀分布，具体地，加强筋93连接第二支撑部91和第一底部92，这样设置可以保证第二支撑部91的机械强度，从而使得第二支撑部91不易发生变形，本实施例中，加强筋91的形状大致呈三角形，当然也可以为其他形状，譬如矩形或梯形等形状。第一环形凸起部94相对于第二支撑部91更靠近隔板9的外缘设置，第一环形凸起部94的外壁直径大于第二支撑部91的外壁直径；参见 图2a或图3，本实施例中，隔板9与第二壳体2固定连接，具体地，结合图33和图15，第一环形凸起部94与第二壳体2的圆筒部的内周过盈配合连接，当然，隔板9与第二壳体2之间也可以通过螺钉或螺栓或铆压连接的方式，隔板9的第一底部92的外周面与第二壳体2过盈配合连接。参见图26至图28，隔板9还至少包括两个第三环形凸起部95，第三环形凸起部95向远离第二支撑部91的方向轴向延伸，具体地，本实施例中，隔板9包括3个第三环形凸起部95，第三环形凸起部95大致呈圆周阵列分布或均匀分布，第三环形凸起部95中心设置有螺纹孔951，这样有利于后续零部件譬如图2a中的安装支架10的固定安装。
参见图15和图16，第二壳体2还包括第一台阶部294，第一台阶部294包括第一限位面2941和第二限位面2942，第一台阶部294设置于第二壳体2的下腔292，第一台阶部294能够作为图2a中的定子组件4在电子油泵的轴向上的限位；参见图15和图16，第二壳体2还包括第二台阶部295，第二台阶部295包括第三限位面2951和第四限位面2952，第二台阶295比第一台阶部294更靠近第二壳体2的第二凸缘部24设置，图2a中的定子组件4与第二壳体2过盈配合连接，具体地，定子组件4的外壁与第二壳体2的至少部分第一台阶部294的第二限位面2942过盈配合连接，第一台阶部294的第一限位面2941与定子组件4抵接，从而实现第一台阶部294对图1中定子组件4在电子油泵轴向上的限位，从而有利于定子组件的限位。
参见图20至图24，第三壳体7包括本体71和连接部72，以本体71 为基准面，连接部72位于本体71的下方，第三壳体7成形有第二连通孔73，第二连通孔73与图14中第二壳体2的第二螺纹孔241对应设置，本实施例中，第二壳体2与第三壳体7通过图2a中的第二螺钉2321连接，当然也可以通过其他的连接方式，譬如插接、卡接或焊接等连接方式；参见图24，连接部72包括限位部76，限位部76的高度H2与图15中第二壳体2的限位部243的高度H1大致相等，这里的“大致相等”是指高度的差值的绝对值在0.3mm以内，这样设置可以尽量保证第三壳体7与第二壳体2的接触面尽量贴合，保证第三壳体7在装配过程中不会发生倾斜，从而避免对接插口与接插件的插接造成影响。第三壳体7还成形有安装孔77，安装孔77用于与变速箱或驱动单元连接，本实施例中包括两个安装孔77。
参见图20至图24，第三壳体7还成形有凸起筋74，凸起筋74与第三壳体7一体注塑成型，凸起筋74向远离第二壳体2的方向凸出设置，本实施例中，在第三壳体7上尽可能多地设置凸起筋74，从而增大散热面积，有利于电路板的散热，本实施例中，凸起筋74的横向截面形状为矩形，当然凸起筋的横向截面形状也可以为其他形状，譬如梯形、三角形、弧形等其他形状。
结合参见图2a以及图29至图33，线路板组件6包括电路板61、电子元器件以及安装支架10，安装支架10设置于电路板61和隔板9之间。安装支架10与隔板9固定连接，具体地，安装支架10与隔板9通过螺钉或螺栓连接，当然，安装支架10与隔板9也可以通过其他的连接方式连接，譬如铆压连接等其他的连接方式；安装支架10与电路板61电连接，安装 支架10能够承载大体积的电子元器件，参见图29至图33，安装支架10包括容纳部102，容纳部102与安装支架10一体注塑成型，容纳部102包括底托部1021和侧部1022，底托部1021与侧部1022形成容纳室，本实施例中，容纳室设置有一个大体积的电子元器件，本实施例中，大体积的电子元器件为一电容101，本实施例中，底托部1021大致呈弧形，底托部1021与大电容101的部分外周面接触设置，设置的底托部1021和侧部1022能够有利于电容101的周向定位，从而保证大电容不会发生周向移动；安装支架10还至少包括2个卡扣部103，本实施例中，安装支架包括2个卡扣部103，卡扣部103分别设置在电容101的两侧，卡扣部103包括第一面1031，在电容101装入容纳部102的过程中，电容101先与卡扣部103的第一面1031接触，此时第一斜面1031与电容101的外周面相切，当电容101继续向容纳部102安装时，会有部分力作用在第一面1031上，从而使卡扣部103向外张开，当电容101的部分外周面与底托部1021接触时，电容101的部分外周面与卡扣部103的第一面不产生作用力，此时原处于张开状态的卡扣部103恢复到初始位置，这样设置一方面可以保证大电容在竖直方向上不会发生移动，另一方面使大电容的拆装变得更加简单，提高了大电容的拆装效率。安装支架10还包括至少包括两个通孔104，通孔104大致呈圆周阵列分布或均匀分布，本实施例中，通孔104的数量与隔板的9第三环形凸起部95的螺纹孔951的数量大致相等，具体地，安装支架10包括3个通孔104，通孔104的数量与隔板9第三环形凸起部95的螺纹孔的数量951对应相等。
需要说明的是：以上实施例仅用于说明本发明而并非限制本发明所描 述的技术方案，尽管本说明书参照上述的实施例对本发明已进行了详细的说明，但是，本领域的普通技术人员应当理解，所属技术领域的技术人员仍然可以对本发明进行修改或者等同替换，而一切不脱离本发明的精神和范围的技术方案及其改进，均应涵盖在本发明的权利要求范围内。

Claims (15)

  1. 一种电子油泵，包括泵壳体、第一转子组件、泵轴、第二转子组件、定子组件以及线路板组件，所述泵壳体至少包括第一壳体、第二壳体以及第三壳体，所述电子油泵具有泵内腔，所述泵内腔包括第一内腔和第二内腔，形成所述第一内腔的侧壁包括部分所述第一壳体和部分所述第二壳体，形成所述第二内腔的侧壁包括部分所述第三壳体，所述第三壳体能够遮盖所述线路板组件；所述第一转子组件容置于所述第一内腔，所述第二转子组件、所述定子组件以及所述线路板组件容置于所述第二内腔；所述电子油泵包括隔部，所述隔部位于所述第一壳体与所述第三壳体之间，所述第一内腔和所述第二内腔位于所述隔部的两侧；所述第一内腔和所述第二内腔通过所述隔部隔离设置，或者所述电子油泵还包括密封部，所述第一内腔和所述第二内腔通过所述隔部以及所述密封部隔离设置。
  2. 根据权利要求1所述的电子油泵，其特征在于：所述第二壳体与所述第一壳体可拆卸连接，所述第二壳体比所述第一壳体更靠近所述第二转子组件，所述第二壳体包括隔部，所述隔部能够支撑所述第一转子组件。
  3. 根据权利要求1所述的电子油泵，其特征在于：所述第二壳体与所述第一壳体可拆卸连接，所述第二壳体比所述第一壳体更靠近所述第二转子组件，所述隔部与所述第一壳体、所述第二壳体可拆卸连接，所述隔部能够支撑所述第一转子组件，所述隔部比所述第二壳体更靠近所述第二转子组件。
  4. 根据权利要求1所述的电子油泵，其特征在于：所述电子油泵还包括第四壳体，所述第四壳体与所述第二壳体可拆卸连接，所述第四壳体与 所述第三壳体可拆卸连接，所述第四壳体包括隔部，所述隔部能够支撑所述第一转子组件。
  5. 根据权利要求1至4任一项所述的电子油泵，其特征在于：所述隔部包括第一支撑部，所述第一支撑部自所述隔部的主体部向所述第二内腔凸起设置，所述泵轴能够直接或间接地支撑于所述第一支撑部。
  6. 根据权利要求5所述的电子油泵，其特征在于：所述第一支撑部包括第一容纳部，所述第一容纳部成形有至少部分第一容纳腔，至少部分所述第一容纳部的内周面围绕所述第一容纳腔，所述泵轴穿过所述第一容纳腔，至少部分所述泵轴的外周面与所述第一容纳部的内周面间隙配合；或者所述电子油泵包括第一轴承，所述第一轴承设置于所述第一容纳腔，所述泵轴穿过所述第一轴承，所述第一轴承的外周面与所述第一容纳部的内周面紧配。
  7. 根据权利要求6所述的电子油泵，其特征在于：所述第一支撑部包括第二容纳部，所述第二容纳部成形有至少部分第二容纳腔，至少部分所述第二容纳部的内周面围绕所述第二容纳腔，所述密封部包括油封，所述油封设置于所述第二容纳腔，所述泵轴穿过所述油封，所述油封的外周面与所述第二容纳部的内周面密封配合。
  8. 根据权利要求6所述的电子油泵，其特征在于：所述第一支撑部包括第二容纳部，至少部分所述泵轴穿过所述第二容纳部；所述第二容纳部的内周面与至少部分所述泵轴的外周面之间形成有间隙，所述间隙小于所述第一内腔内的工作介质的渗透距离，所述间隙能够阻止第一内腔内所述工作介质通过所述间隙进入所述第二内腔。
  9. 根据权利要求1至8任一项所述的电子油泵，其特征在于：所述第二转子组件设置于所述第一转子组件和所述线路板组件之间；所述第一转子组件靠近所述泵轴一端设置，所述第二转子组件靠近所述泵轴的另一端设置，所述线路板组件靠近安装有所述第二转子组件的所述泵轴的一端设置；靠近所述第一转子组件的所述泵轴的一端伸入所述第一内腔，靠近所述第二转子组件的所述泵轴的另一端伸入所述第二内腔。
  10. 根据权利要求1至9任一项所述的电子油泵，其特征在于：所述电子油泵还包括隔板，所述隔板设置于所述第二内腔，所述电子油泵还包括第二支撑部，所述第二支撑部与所述隔板一体成形，所述第二支撑部自所述隔板向所述第二内腔凸起设置，所述电子油泵包括第二轴承，所述泵轴能够直接或通过所述第二轴承支撑于所述第二支撑部。
  11. 根据权利要求10所述的电子油泵，其特征在于：所述隔板包括第三容纳部，所述第三容纳部成形有至少部分第三容纳腔，所述泵轴穿过所述第三容纳腔，至少部分所述第三容纳部的内周面围绕所述第三容纳腔，至少部分所述泵轴的外周面与所述第三容纳部的内周面间隙配合；或者所述电子油泵包括第二轴承，所述第二轴承设置于所述第三容纳腔，所述泵轴穿过所述第二轴承，所述第二轴承的外周面与所述第三容纳部的内周面紧配。
  12. 根据权利要求1至11所述的电子油泵，其特征在于：所述第一壳体与所述第二壳体通过第一连接部可拆卸连接，所述第二壳体和所述第三壳体通过第二连接部可拆卸连接，所述第一连接部和所述第二连接部未设置于所述第一内腔或第二内腔。
  13. 根据权利要求12所述的电子油泵，其特征在于：所述第一连接部包括第一螺钉，所述第一壳体包括第一凸缘部，所述第一凸缘部突出所述第一壳体设置，所述第一凸缘部成形有第一连通孔，所述第二壳体成形有第一螺纹孔，所述第一螺纹孔沿所述第二壳体的主体部成形，所述第一螺钉穿过所述第一连通孔自所述第一壳体向所述第二壳体方向安装并与所述第二壳体螺纹连接。
  14. 根据权利要求1至13任一项所述的电子油泵，其特征在于：所述电子油泵包括外密封部，所述外密封部包括套设于所述第二壳体外周面的第一密封圈和第二密封圈，所述第一密封圈靠近所述第一壳体设置，所述第二密封圈靠近所述第三壳体设置。
  15. 根据权利要求14所述的电子油泵，其特征在于：所述第一转子组件包括第一转子和第二转子，所述第二转子与第一转子之间形成容积可变的液压腔，所述电子油泵还包括第一流口和第二流口，所述电子油泵的工作介质通过所述第一流口流入，所述电子油泵的工作介质通过所述第二流口流出；所述电子油泵还包括第一连通腔和第二连通腔，所述第一连通腔设置于所述第一流口和所述液压腔之间，所述第一连通腔与所述第一流口连通，所述第二连通腔设置于所述第二流口和所述液压腔之间，所述第二连通腔与所述第二流口连通。
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