WO2023282476A1 - 펌프 - Google Patents
펌프 Download PDFInfo
- Publication number
- WO2023282476A1 WO2023282476A1 PCT/KR2022/008101 KR2022008101W WO2023282476A1 WO 2023282476 A1 WO2023282476 A1 WO 2023282476A1 KR 2022008101 W KR2022008101 W KR 2022008101W WO 2023282476 A1 WO2023282476 A1 WO 2023282476A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- gear
- disposed
- support
- bearing
- space
- 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.)
- Ceased
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Classifications
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- 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
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- 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
- F04C2/102—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 the two members rotating simultaneously around their respective axes
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- 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
- F04C23/00—Combinations of two or more pumps, each being of rotary-piston or oscillating-piston type, specially adapted for elastic fluids; Pumping installations specially adapted for elastic fluids; Multi-stage pumps specially adapted for elastic fluids
- F04C23/02—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
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- 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
- F04C29/00—Component parts, details or accessories of pumps or pumping installations, not provided for in groups F04C18/00 - F04C28/00
- F04C29/0042—Driving elements, brakes, couplings, transmissions specially adapted for pumps
- F04C29/0085—Prime movers
-
- 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
- F04C15/0057—Driving elements, brakes, couplings, transmission specially adapted for machines or pumps
- F04C15/0061—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions
- F04C15/0065—Means for transmitting movement from the prime mover to driven parts of the pump, e.g. clutches, couplings, transmissions for eccentric movement
-
- 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
- F04C2240/20—Rotors
-
- 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
-
- 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
- F04C2240/40—Electric motor
-
- 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
- F04C2240/50—Bearings
Definitions
- This embodiment relates to a pump.
- the pump includes a motor region generating rotational driving force and a pump region generating hydraulic pressure. Therefore, since the motor area and the pump area in the pump are separated from each other, there is a problem in that the number of parts and the entire product are increased.
- the EOP according to the prior art does not have a means capable of supporting the axial load applied to the outer rotor, as the operating pressure in the pump increases, the rotation of the outer rotor or inner rotor by the force applied from the outlet of the pump There is a problem with poor stability. In particular, when a high pressure of 3 bar or more is generated, friction with the housing is made due to the misalignment of the shaft system of the external rotor, which becomes a factor that impairs the performance of the pump.
- An object of the present embodiment is to provide a pump capable of firmly fixing an external gear in a housing by improving the structure and improving driving efficiency.
- the pump according to this embodiment includes an external gear; a magnet engaged with the outer gear; an inner gear disposed inside the outer gear; a support part disposed between the outer gear and the magnet; and a bearing coupled to the support, wherein the support includes a protrusion coupled to an inner surface of the bearing.
- the external gear may include a core, and the support may be disposed between the core and the magnet.
- the core includes a first area on an outer surface in which a guide contacting the side surface of the magnet is disposed, and a second area in which the support is disposed on an outer surface, and the cross-sectional area of the first area is greater than the cross-sectional area of the second area.
- An axial length of the magnet may be smaller than an axial length of the guide.
- the can may include a second protrusion protruding upward from an upper surface, and the protrusion and the bearing may be disposed in a bearing space within the second protrusion.
- a cross-sectional area of the bearing may correspond to a cross-sectional area of the bearing space.
- the support may rotate integrally with the external gear.
- the outer gear and the inner gear may rotate eccentrically.
- a pump includes an external gear; a magnet engaged with the outer gear; an inner gear disposed inside the outer gear; and a support engaged with the outer gear, wherein the support includes: a base disposed on one side of the inner gear; an engaging portion engaged with a side surface of the external gear; and a protrusion protruding in a direction opposite to the coupling part.
- the inner gear is coupled with the protrusion of the first cover so that the shaft center is aligned, and the outer gear can be aligned through the support and the bearing, so that the outer gear or It has the advantage of preventing the shaft system of the inner gear from being dislocated.
- FIG. 1 is a cross-sectional view of a pump according to an embodiment of the present invention.
- Figure 2 is an exploded perspective view of the pump according to an embodiment of the present invention.
- Fig. 3 shows Fig. 2 from another angle
- Figure 4 is an exploded perspective view of the main components in the pump according to an embodiment of the present invention.
- FIG. 5 is an exploded perspective view of a support and an external gear according to an embodiment of the present invention.
- FIG. 6 is a cross-sectional view showing a coupling structure of a bearing and a support according to an embodiment of the present invention.
- FIG. 7 is a perspective view showing a coupling structure of an external gear, a support and a bearing according to an embodiment of the present invention.
- Fig. 8 is a perspective view of Fig. 7 from another angle
- Figure 9 is a graph comparing the outlet pressure of the pump according to the prior art and the pump according to an embodiment of the present invention.
- the technical idea of the present invention is not limited to some of the described embodiments, but may be implemented in various different forms, and if it is within the scope of the technical idea of the present invention, one or more of the components among the embodiments can be selectively selected. can be used by combining and substituting.
- first, second, A, B, (a), and (b) may be used to describe components of an embodiment of the present invention.
- a component when a component is described as being 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected to, coupled to, or connected to the other component, but also the component It may also include cases of being 'connected', 'combined', or 'connected' due to another component between the and other components.
- top (top) or bottom (bottom) when it is described as being formed or disposed on the “top (top) or bottom (bottom)" of each component, the top (top) or bottom (bottom) is not only when two components are in direct contact with each other, but also It also includes cases where one or more other components are formed or disposed between two components.
- up (up) or down (down) when expressed as “up (up) or down (down)”, it may include the meaning of not only the upward direction but also the downward direction based on one component.
- the 'axial direction' used below is defined as a direction forming the center of rotation of the inner gear or the outer gear.
- 'Axial direction' may be a direction in which components disassembled based on FIG. 4 or 5 are combined.
- the 'radial direction' used below is defined as a direction perpendicular to the aforementioned 'axial direction'.
- the 'radial direction' may be defined as a protruding direction of the first lobe from the inner surface of the outer gear and a protruding direction of the second lobe from the inner surface of the inner gear.
- the 'circumferential direction' used below is defined as the circumferential direction of any one of the stator, outer gear, and inner gear, or the circumferential direction of an area forming a virtual concentric circle with the circumferential direction of any one of the stator, outer gear, and inner gear. It can be.
- Figure 1 is a cross-sectional view of a pump according to an embodiment of the present invention
- Figure 2 is an exploded perspective view of the pump according to an embodiment of the present invention
- Figure 3 is a view showing Figure 2 from another angle
- Figure 4 is the present invention
- Figure 5 is an exploded perspective view of a support and an external gear according to an embodiment of the present invention
- Figure 6 is a coupling structure of a bearing and a support according to an embodiment of the present invention
- 7 is a perspective view showing a coupling structure of an external gear, a support and a bearing according to an embodiment of the present invention
- FIG. 8 is a perspective view of FIG. 7 from another angle
- FIG. 9 is a prior art It is a graph comparing the outlet pressure of the pump according to the embodiment of the present invention and the pump according to the present invention.
- the pump 10 may have an outer shape by combining the housing 100, the first cover 200 and the second cover 500. .
- the first cover 200 may be coupled to a lower surface of the housing 100 .
- the second cover 500 may be coupled to an upper surface of the housing 100 .
- the housing 100 and the first cover 200 may be screwed together through screws.
- the housing 100 and the second cover 500 may be screwed together through screws.
- a first opening 212 through which fluid is sucked and a second opening 214 through which circulated fluid is discharged may be formed on one surface of the first cover 200 .
- a third opening 232 connected to the first opening 212 and a fourth opening 234 connected to the second opening 214 may be formed on the other surface of the cover 200 . That is, the first opening 212 and the second opening 214 are formed on the lower surface of the first cover 200, and the third opening 232 and the fourth opening 234 are formed on the housing ( 100) may be formed on the upper surface of the first cover 200 coupled to it.
- An upper surface of the first cover 200 may include a mounting portion 280 protruding upward and coupled to a space 192 in the can 190 to be described later.
- a cross section of the mounting portion 280 may be circular.
- a screw thread or a screw groove may be formed on an outer circumferential surface of the mounting portion 280 .
- a screw groove or a screw groove may be formed on an inner circumferential surface of the space 192 facing the outer circumferential surface of the mounting portion 280 . Due to this, the mounting part 280 may be screwed into the inner surface of the space 192 .
- a cross-sectional shape of the mounting portion 280 may correspond to a cross-sectional shape of the space 192 .
- a ring-shaped sealing member for sealing may be disposed between the outer circumferential surface of the mounting portion 280 and the inner surface of the space 192 .
- the sealing member is made of a rubber material to prevent fluid from leaking between the outer circumferential surface of the mounting portion 280 and the inner surface of the space 192 .
- a third opening 232 through which fluid is sucked and a fourth opening 234 through which the sucked fluid is discharged may be formed on an upper surface of the first cover 200 .
- the fluid may be oil.
- the third opening 232 and the fourth opening 234 may be formed to have an arc shape, respectively, and may be provided such that a gap gradually narrows from one side to the other side. More specifically, the wide side of the third openings 232 faces the wide side of the fourth openings 234, and the narrow side of the third openings 232 faces the fourth openings 234. ) may be arranged so that the spacing is toward the narrow side.
- the third opening 232 and the fourth opening 234 may be formed on an upper surface of the mounting part 280 .
- a protrusion 220 protruding upward may be disposed on an upper surface of the first cover 200 .
- the protruding part 220 may be disposed at the center of the mounting part 280 .
- the protrusion 220 may be coupled to a hole 132 of the inner gear 130 to be described later, and support rotation of the inner gear 130 .
- a second space 108 may be formed on an upper surface of the housing 100 .
- the second space 108 may have a groove shape.
- a plurality of electronic components for driving may be disposed in the second space 108 .
- a printed circuit board 400 and a terminal may be disposed in the second space 108 .
- a plurality of devices may be mounted on the circuit board 400 .
- the area 107 of the housing 100 in which the second space 108 is disposed inside may have a larger cross-sectional area than other areas.
- the second cover 500 may be coupled to an upper portion of the housing 100 to cover the second space 108 .
- a plurality of protruding regions protruding upward may be formed on the upper surface of the second cover 500 .
- a cross-sectional area of the second cover 500 may be increased through the protruding area.
- heat generated in the second space 108 can be dissipated.
- at least a part of the electronic component disposed on the printed circuit board 400 may be accommodated inside the protruding area.
- the second cover 500 may include a connector mounting portion 590 in which a connector (not shown) is disposed. One end of the connector may be coupled to the upper surface of the printed circuit board 400 and the other end may be exposed to the outside through the connector mounting portion 590 . An external terminal may be coupled to the connector mounting portion 590 . Due to this, power may be applied to the pump 10 or a signal for driving may be transmitted and received.
- a stator 120 and a pump gear may be disposed in the housing 100 .
- the pump gear may include an external gear 140 and an internal gear 130 .
- the inside gear 130 may be disposed inside the outside gear 140 .
- the housing 100 may be formed of a resin or plastic material, but is not limited thereto.
- the housing 100 may include a first partition wall 105 partitioning the first area 105a and the second area 105b.
- the first area 105a may include a first space 104 .
- the second region 105b may include the second space 108 .
- the first space 104 and the second space 180 may not be connected by the first partition wall 105, but as shown in FIG. 1, the first partition wall 105 includes a can, which will be described later.
- a hole 105c to which the protruding portion 190 of 190 is coupled may be formed.
- the stator 120 may be disposed within the housing 100 .
- the stator 120 may be integrally formed with the housing 100 by double injection.
- the stator 120 and the housing 100 may be integrally formed by insert injection molding.
- the stator 120 may be molded in the housing 100 .
- a stator accommodating space in which the stator 120 is disposed may be formed in the housing 100 .
- the stator accommodating space may be disposed outside the first space 104 .
- An outer surface of the stator 120 may be surrounded by the housing 100 .
- the stator 120 may include a core and a coil 126 wound around the core.
- the stator 120 may include an insulator (not shown) disposed to surround an outer surface of the core.
- the coil 126 may be wound on an outer surface of the insulator.
- the first space 104 may be disposed in the central region of the housing 100 .
- the first space 104 may have a groove shape in which a part of the lower surface of the housing 100 is depressed upward.
- the arrangement area of the stator 120 and the first space 104 may be partitioned by a second partition wall (not shown).
- the second barrier rib may be disposed between the stator 120 and an external gear 140 to be described later.
- the second barrier rib may be formed to a thickness of 0.2 mm to 1 mm.
- the second space 108 and the first space 104 may be partitioned in the upper and lower directions by the first partition wall 105 .
- a lower surface of the first partition wall 105 may form an upper surface of the first space 104 .
- the first space 104 and the second space 108 may be partitioned into different areas. Accordingly, it is possible to prevent the fluid in the first space 104 from flowing into the second space 108 in advance.
- the outside gear 140 and the inside gear 130 may be disposed in the second space 105a.
- the external gear 140 may be disposed inside the stator 120 .
- the second barrier rib may be disposed between the external gear 140 and the stator 120 .
- the external gear 140 may include a core 141 and a magnet 142 mounted on the core 141 .
- the magnet 142 may be disposed on an outer circumferential surface of the core 141 to correspond to the coil 126 .
- the external gear 140 may be a surface permanent magnet (SPM) type in which the magnet 142 is attached to the outer circumferential surface of the core 141 .
- SPM surface permanent magnet
- a groove in which the magnet 144 is mounted may be formed on an outer circumferential surface of the core 141 .
- the grooves may be provided in plurality and spaced apart from each other along the circumferential direction.
- a guide 151 protruding outward from an outer surface of the core 141 may be disposed between adjacent magnets 142 to support side surfaces of the magnets 142 .
- An axial length of the guide 151 may be smaller than an axial length of the magnet 142 . Therefore, it can be understood that the groove in which the magnet 144 is mounted is disposed between adjacent guides 151 .
- a side surface of the guide 151 facing the side surface of the magnet 142 may be formed with an inclined surface having a length in a circumferential direction increasing toward the outside. Also, an inclined surface corresponding to the inclined surface may be formed on a side surface of the magnet 142 facing the side surface of the guide 151 .
- the external gear 140 can be rotated by electromagnetic interaction between the stator 120 and the external gear 140.
- a first hole 146 in which the inside gear 130 is disposed may be formed at the center of the outside gear 140 .
- a plurality of ridges 148 protruding inward from the inner circumferential surface and valleys disposed between the plurality of ridges 148 may be formed on the inner circumferential surface of the first hole 146 . That is, a first gear may be formed on the inner circumferential surface of the first hole 146 in which a plurality of ridges 148 and troughs are alternately disposed.
- the inside gear 130 may be disposed inside the outside gear 140 .
- the outer gear 140 may be referred to as an outer rotor, and the inner gear 130 may be referred to as an inner rotor.
- the inside gear 130 and the outside gear 140 may be disposed so that their centers do not coincide with each other.
- the outer circumferential surface of the inner gear 130 may include a plurality of peaks protruding outward from the outer circumferential surface and valleys disposed between the plurality of peaks.
- a second gear may be formed on an outer circumferential surface of the inner gear 130 in which a plurality of crests and a plurality of valleys are alternately disposed.
- the inner gear 130 may have a second lobe 136 having N gear teeth outward in a radial direction with respect to the center of rotation, and may be disposed along a direction.
- the outer gear 140 may be provided with N+1 first lobes 149 inwardly in a radial direction.
- the first lobe 149 may be arranged to be caught by the second lobe 136 .
- the inner gear 130 may rotate by the first lobe 149 and the second lobe 136 .
- fluid may be introduced into the space 192 within the can 190, which will be described later, or the fluid within the space 192 may be discharged to the outside.
- Rotational centers of the outer gear 140 and the inner gear 130 may be different.
- the pump 10 may include a can 190 .
- the can 190 may be disposed in the first space 104 .
- the can 190 may be formed of a metal material.
- the can 190 may be integrally formed with the housing 100 by double injection. However, this is exemplary, and the can 190 may be formed of a plastic material.
- the can 190 includes a body portion 193, a lower end portion 194 protruding outward from the lower end of the body portion 193, and a second protrusion portion 196 protruding upward from the upper surface of the body portion 193. ) may be included.
- a space 192 may be formed inside the body portion 193 .
- the inner gear 130 and the outer gear 140 may be disposed in the space 192 .
- a cross-sectional shape of the body portion 193 may be formed to correspond to a cross-sectional shape of the first space 104 .
- the lower end 194 may be bent outward from the lower end of the body 193 to extend.
- the lower end 194 may be disposed between the lower surface of the housing 100 and the upper surface of the first cover 200 .
- the second protrusion 196 may be coupled to the hole 105c in the first barrier rib 105 .
- a cross-sectional shape of the second protrusion 196 may correspond to a cross-sectional shape of the hole 105c.
- An upper end of the second protrusion 196 protrudes upward from the upper surface of the first barrier rib 105, and at least a portion thereof may be disposed within the second region 105b.
- a bearing space 197 for accommodating a bearing 180 and a first protrusion 174 to be described later may be formed in the second protrusion 196 .
- the second protrusion 196 may have a smaller cross-sectional area than the body portion 193 .
- Fluid in the first region 105a may be prevented from flowing into the second region 105b by the can 190 .
- the pump 10 may include a support 170 .
- the support 170 is coupled to the external gear 140 and may support the external gear 140 within the space 192 .
- the support 170 has a circular cross-sectional shape and may be coupled to an upper portion of the external gear 140 .
- the support 170 may be coupled to the external gear 140 by press fit.
- the support 170 may include a base 171 disposed on one side of the inner gear 140 .
- the base 171 may be coupled to an upper surface of the inner gear 140 .
- a cross-sectional area of the base 171 may be smaller than that of the external gear 140 .
- the support 170 may include a coupling portion 172 that protrudes downward from an edge area of the base 171 and is engaged with a side surface of the external gear 140 .
- the coupling part 172 may be disposed between the outer surface of the core 141 and the inner surface of the magnet 142 .
- An inner surface of the coupling part 172 may face an outer surface of the core 141
- an outer surface of the coupling part 172 may face an inner surface of the magnet 142 .
- a lower end of the coupling part 172 may contact an upper surface of the guide 151 .
- the support 170 may be disposed between the magnet 142 and the core 141 .
- the core 141 includes a first region 141a (see FIG. 1) on which the guide 151 is disposed on an outer circumferential surface and a support 170 disposed on an upper portion of the first region 141a and disposed on the outer circumferential surface. may include a second region 141b to which is coupled.
- a cross-sectional area of the first region 141a may be smaller than that of the second region 141b.
- a cross-sectional area of the space within the support 170 may correspond to the cross-sectional area of the second region 141b.
- the inner surface of the support 170 faces the outer surface of the second area 141b, and the outer surface of the support 170 faces the magnet. It can be arranged facing the inner surface of (142).
- An adhesive region may be formed between the inner surface of the support 170 and the outer surface of the second region 141 and between the outer surface of the support 170 and the inner surface of the support 142 . A lower end of the support 170 may contact the upper surface of the first region 141a.
- the support 170 may include a first protrusion 174 protruding upward from the top surface.
- the first protruding part 174 may protrude from the base 171 in a direction opposite to the protruding direction of the coupling part 172 . That is, the first protrusion 174 may protrude upward from the upper surface of the base 171 .
- the first protrusion 174 may have a smaller cross-sectional area than other regions and may have a circular cross-sectional shape.
- the first protrusion 174 may be disposed in the bearing space 197 within the second protrusion 196 .
- the first protrusion 174 may be disposed to overlap the first partition wall 105 in a horizontal direction.
- the support 170 may be disposed to form the same rotational center as the external gear 140 .
- the inner surface of the support 170 may have a certain frictional force so as to be rotated by contact with the outer surface of the second area 141b.
- the pump 10 may include a bearing 180 .
- the bearing 180 may be disposed in the bearing space 197 .
- the bearing 180 may be a ball bearing. Accordingly, the bearing 180 may include balls disposed between the outer race and the inner race.
- a coupling hole 182 may be formed in the center of the bearing 180 .
- the first protrusion 174 may be coupled to the coupling hole 182 . Therefore, when the support 170 rotates together with the external gear 140, the bearing 180 can support the rotation of the support 170.
- the support 170 may rotate integrally with the bearing 180 and the external gear 140 .
- the inner gear is coupled with the protrusion of the first cover so that the shaft center is aligned, and the outer gear can be aligned through the support and the bearing, so that the outer gear can be aligned by the pressure difference between different areas in the housing. It has the advantage of preventing the shaft system of the gear or the inner gear from being dislocated.
- the outlet pressure of the pump is formed at a maximum of 4 Bar as shown in sample A of FIG. Since it can be maintained, there is an advantage that the outlet pressure can be formed more than twice as high as in the prior art, as shown in sample B of FIG.
- the current can be reduced by 50% or more even when driving without a load, thereby improving the driving efficiency of the pump.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Rotary Pumps (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
Abstract
Description
Claims (10)
- 외측 기어;상기 외측 기어와 결합하는 마그넷;상기 외측 기어 내측에 배치된 내측 기어;상기 외측 기어와 상기 마그네 사이에 일부가 배치되는 서포트; 및상기 서포트와 결합하는 베어링;을 포함하고,상기 서포트는 상기 베어링의 내측면과 결합하는 돌출부를 포함하는 펌프.
- 제 1 항에 있어서,상기 외측기어는 코어를 포함하고,상기 서포트는 상기 코어와 상기 마그넷 사이에 배치되는 펌프.
- 제 2 항에 있어서,상기 코어는, 외면에 상기 마그넷의 측면과 접촉되는 가이드가 배치되는 제1영역과, 외면에 상기 서포트가 배치되는 제2영역을 포함하고,상기 제1영역의 단면적은 상기 제2영역의 단면적 보다 큰 펌프.
- 제 3 항에 있어서,상기 마그넷의 축방향 길이는 상기 가이드의 축방향 길이 보다 작은 펌프.
- 제 1 항에 있어서,상기 외측 기어의 외측에 배치되는 스테이터를 포함하고,상기 스테이터의 내측에 배치되며, 상기 내측기어 및 상기 외측기어가 배치되는 공간을 포함하는 캔을 포함하는 펌프.
- 제 5 항에 있어서,상기 캔은 상면으로부터 상방으로 돌출되는 제2돌출부를 포함하고,상기 돌출부 및 상기 베어링은 상기 제2돌출부 내 베어링 공간에 배치되는 펌프.
- 제 6 항에 있어서,상기 베어링의 단면적은 상기 베어링 공간의 단면적에 대응되는 펌프.
- 제 1 항에 있어서,상기 서포트는 상기 외측 기어와 일체로 회전하는 펌프.
- 제 1 항에 있어서,상기 외측기어와 상기 내측기어는 편심 회전되는 펌프.
- 외측 기어;상기 외측 기어와 결합하는 마그넷;상기 외측 기어 내측에 배치된 내측 기어; 및상기 외측 기어와 결합하는 서포트;를 포함하고,상기 서포트는,상기 내측 기어의 일측면 상에 배치되는 베이스;상기 외측 기어의 측면과 결합하는 결합부; 및상기 결합부와 반대 방향으로 돌출되는 돌출부를 포함하는 펌프.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202280048047.8A CN117616203A (zh) | 2021-07-05 | 2022-06-09 | 泵 |
| EP22837830.3A EP4368837A4 (en) | 2021-07-05 | 2022-06-09 | Pump |
| US18/570,933 US12492698B2 (en) | 2021-07-05 | 2022-06-09 | Pump |
| JP2023580860A JP2024524449A (ja) | 2021-07-05 | 2022-06-09 | ポンプ |
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| Application Number | Priority Date | Filing Date | Title |
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| KR1020210087908A KR20230007094A (ko) | 2021-07-05 | 2021-07-05 | 펌프 |
| KR10-2021-0087908 | 2021-07-05 |
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| US (1) | US12492698B2 (ko) |
| EP (1) | EP4368837A4 (ko) |
| JP (1) | JP2024524449A (ko) |
| KR (1) | KR20230007094A (ko) |
| CN (1) | CN117616203A (ko) |
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| CN116557288A (zh) * | 2023-05-15 | 2023-08-08 | 华域皮尔博格泵技术有限公司 | 一种无感电子油泵及系统 |
| KR102926694B1 (ko) | 2023-12-11 | 2026-02-13 | 지엠비코리아 주식회사 | 자석의 영향을 감소시키는 전동식 오일펌프 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000352382A (ja) * | 1999-06-09 | 2000-12-19 | Mikuni Adec Corp | マグネットポンプ |
| JP2005207245A (ja) * | 2004-01-20 | 2005-08-04 | Koyo Seiko Co Ltd | 電動ポンプユニット |
| JP2011058441A (ja) * | 2009-09-11 | 2011-03-24 | Jtekt Corp | 電動ポンプユニット |
| US20200248693A1 (en) * | 2019-02-04 | 2020-08-06 | Schwäbische Hüttenwerke Automotive GmbH | Internal gear pump |
| KR20200120897A (ko) * | 2018-02-14 | 2020-10-22 | 스택폴 인터내셔널 엔지니어드 프로덕츠, 엘티디. | 스핀들을 구비한 지로터 |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7137793B2 (en) * | 2004-04-05 | 2006-11-21 | Peopleflo Manufacturing, Inc. | Magnetically driven gear pump |
| KR102405642B1 (ko) * | 2015-09-15 | 2022-06-07 | 엘지이노텍 주식회사 | 전동 펌프 |
| JP2018096269A (ja) * | 2016-12-13 | 2018-06-21 | 株式会社マーレ フィルターシステムズ | 電動ポンプ |
-
2021
- 2021-07-05 KR KR1020210087908A patent/KR20230007094A/ko active Pending
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2022
- 2022-06-09 CN CN202280048047.8A patent/CN117616203A/zh active Pending
- 2022-06-09 WO PCT/KR2022/008101 patent/WO2023282476A1/ko not_active Ceased
- 2022-06-09 EP EP22837830.3A patent/EP4368837A4/en active Pending
- 2022-06-09 JP JP2023580860A patent/JP2024524449A/ja active Pending
- 2022-06-09 US US18/570,933 patent/US12492698B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000352382A (ja) * | 1999-06-09 | 2000-12-19 | Mikuni Adec Corp | マグネットポンプ |
| JP2005207245A (ja) * | 2004-01-20 | 2005-08-04 | Koyo Seiko Co Ltd | 電動ポンプユニット |
| JP2011058441A (ja) * | 2009-09-11 | 2011-03-24 | Jtekt Corp | 電動ポンプユニット |
| KR20200120897A (ko) * | 2018-02-14 | 2020-10-22 | 스택폴 인터내셔널 엔지니어드 프로덕츠, 엘티디. | 스핀들을 구비한 지로터 |
| US20200248693A1 (en) * | 2019-02-04 | 2020-08-06 | Schwäbische Hüttenwerke Automotive GmbH | Internal gear pump |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN117616203A (zh) | 2024-02-27 |
| US20240280103A1 (en) | 2024-08-22 |
| US12492698B2 (en) | 2025-12-09 |
| KR20230007094A (ko) | 2023-01-12 |
| JP2024524449A (ja) | 2024-07-05 |
| EP4368837A1 (en) | 2024-05-15 |
| EP4368837A4 (en) | 2025-05-14 |
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