EP3759356A1 - Elektrische kühlmittelpumpe - Google Patents
Elektrische kühlmittelpumpeInfo
- Publication number
- EP3759356A1 EP3759356A1 EP18825616.8A EP18825616A EP3759356A1 EP 3759356 A1 EP3759356 A1 EP 3759356A1 EP 18825616 A EP18825616 A EP 18825616A EP 3759356 A1 EP3759356 A1 EP 3759356A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- coolant
- pump
- electric
- pump housing
- control circuit
- 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.)
- Granted
Links
- 239000002826 coolant Substances 0.000 title claims abstract description 82
- 239000000110 cooling liquid Substances 0.000 claims abstract description 3
- 239000002861 polymer material Substances 0.000 claims description 6
- 238000001914 filtration Methods 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 18
- 238000002485 combustion reaction Methods 0.000 abstract description 4
- 238000005086 pumping Methods 0.000 abstract 1
- 230000017525 heat dissipation Effects 0.000 description 3
- 239000012809 cooling fluid Substances 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000003507 refrigerant Substances 0.000 description 2
- 238000005057 refrigeration Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229920001169 thermoplastic Polymers 0.000 description 2
- 239000002918 waste heat Substances 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000011109 contamination Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 229910001338 liquidmetal Inorganic materials 0.000 description 1
- 230000005923 long-lasting effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5813—Cooling the control unit
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D13/00—Pumping installations or systems
- F04D13/02—Units comprising pumps and their driving means
- F04D13/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D13/0653—Units comprising pumps and their driving means the pump being electrically driven the motor being flooded
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/04—Shafts or bearings, or assemblies thereof
- F04D29/046—Bearings
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/586—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps
- F04D29/588—Cooling; Heating; Diminishing heat transfer specially adapted for liquid pumps cooling or heating the machine
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/708—Suction grids; Strainers; Dust separation; Cleaning specially for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D7/00—Pumps adapted for handling specific fluids, e.g. by selection of specific materials for pumps or pump parts
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
- F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
- F05B2260/00—Function
- F05B2260/20—Heat transfer, e.g. cooling
- F05B2260/232—Heat transfer, e.g. cooling characterised by the cooling medium
Definitions
- the invention relates to an electric coolant pump, in particular for the promotion of cooling fluid for cooling a combustion engine of a vehicle.
- DE 698 18 392 T2 discloses such an electric coolant pump with a pump impeller mounted on a rotor shaft and an electric motor driving the rotor shaft.
- the pump housing, in which the electric motor is housed, is flowed through by the required coolant.
- the waste heat generated during operation of the electric motor in the rotor and stator can be transferred in this way to the coolant and the coolant pump can be cooled accordingly.
- the control circuit of the electric motor is arranged in a separate, separate from the actual pump housing receiving chamber.
- the electronic components of the control circuit are thus not in direct contact with the coolant.
- the cooling effect of the coolant on the control circuit is thus at most low.
- the electric coolant pump has a pump impeller for accelerating the coolant to be delivered, a rotor shaft on which the pump impeller is mounted, an electric motor with a stator and a rotor for driving the rotor shaft, a control circuit for controlling the electric motor and a pump housing which at least the control circuit and the electric motor receives.
- the pump housing l is flowed through by the coolant to be delivered.
- the coolant to be pumped flows around the stator, the rotor and the control circuit.
- the pump housing is flowed through during operation of the coolant pump by the coolant to be delivered.
- the pump impeller in addition to delivering the refrigerant in the actual refrigeration cycle (e.g., refrigeration cycle for cooling a combustion engine of a motor vehicle), the pump impeller generates a volumetric flow of the refrigerant through the pump casing.
- the arranged within the pump housing components, in particular the stator, the rotor and the control circuit are thus surrounded by the coolant. The waste heat generated by said components can be dissipated efficiently in this way.
- the control circuit can be designed as an electronic control unit (ECU).
- ECU electronice control unit
- an inflow opening for inflowing the coolant to be conveyed into the pump housing can be formed in the pump housing.
- Such an inflow opening enables the defined supply of coolant.
- the flow direction and the flow volume can be determined by the Dimensioning and the position of the inflow opening can be adjusted accordingly.
- Particularly advantageous is the design of the inflow opening in the housing wall facing the pump running path.
- the inflow opening is provided with a filter element for filtering the inflowing coolant.
- the pump housing is filled with a dielectric coolant as coolant to be delivered.
- these cooling liquid metal corrosion inhibiting components are added. In this way, a largely maintenance-free, robust and long-lasting functionality of the coolant pump is ensured. At the same time electrical Fried Herntechnischen the electric motor or the control circuit can be prevented.
- the coolant pump may further comprise a sliding bearing for supporting the rotor shaft in the pump housing.
- a sliding bearing for supporting the rotor shaft in the pump housing.
- the pump housing may be made of a polymer material. Since the heat dissipation of the electric motor and the control circuit via the coolant to be delivered takes place, the heat dissipation capacity of the pump housing plays a minor role. It can therefore be dispensed with a metal housing and resort to a cost-effective pump housing made of a polymer material.
- the pump housing in particular be made of a thermoplastic polymer material. This has the advantage that in a simple manner, the stator can be encapsulated by the material of the housing. The production of the coolant pump is simplified. The invention will be explained in more detail by embodiments with reference to the accompanying figures. It shows:
- Fig. 1 is a sectional view of a first embodiment of the electric coolant pump
- Fig. 2 is a sectional view of a second embodiment of the electric coolant pump.
- Fig. 3 is a further sectional view of the first embodiment of the electric coolant pump.
- the illustrated in Fig. 1 electric coolant pump 1 is used to promote a coolant in a cooling circuit shown schematically.
- This cooling circuit can serve, for example, for cooling a combustion engine of a motor vehicle and consist essentially of cooling channels through which the coolant is supplied to the components to be cooled and then to a heat sink (eg radiator). These cooling channels are not shown in detail in the drawing figures.
- the coolant may be, for example, a dielectric cooling fluid, the metal corrosion inhibiting components are buried.
- This coolant is circulated through a pump impeller 2 of the coolant pump 1 within the cooling circuit.
- the direction of movement of the coolant within the cooling circuit is indicated in the drawing figures by arrows.
- the pump impeller 2 is mounted on a rotor shaft 3.
- This rotor shaft 3 in turn is mounted via a sliding bearing 4 in a pump housing base body 5.
- a cylindrical inner wall is formed in the pump housing base body 5, which serves as a support for the sliding bearing 4.
- a rotor 7 of the electric motor 6 is flanged to the rotor shaft 3. More precisely, it is the rotor
- stator 8 surrounds the rotor 7 radially outward. The stator 8 sets the rotor 7 in rotation and thus provides for the drive of the pump impeller second
- the pump housing base 5 is substantially cup-shaped and forms together with a housing cover 9, the pump housing 10.
- the housing cover 9 opposite end face of the pump housing base 5 is pierced by the rotor shaft 3, so that the impeller 2 outside the pump housing 10, but in close proximity and in parallel to the above-mentioned end face within the cooling circuit (ie in particular within a cooling channel) is located.
- an inflow opening 11 is formed, which is provided with a filter 12 for filtering the inflowing coolant.
- the inflow opening 11 is in this case arranged such that it is perpendicular to the end face within the range of a projection of the pump impeller 2.
- control circuit 13 of the electric motor 6 is arranged in the pump impeller 2 opposite end portion of the pump housing 10, i. in the region of the housing cover 9, a control circuit 13 of the electric motor 6 is arranged.
- the control circuit 13 is formed as an ECU.
- the electronic components of the control circuit 13 are oriented in this case in the direction of the interior of the pump housing 10.
- the pump housing 10 is formed fluid-tight with respect to the atmosphere, so that the coolant located within the pump housing 10 is not in the Environment can escape.
- the pump housing base body 5 and the housing cover 9 are made of a thermoplastic polymer material.
- the illustrated in Fig. 2 electric coolant pump 101 differs from the coolant pump 1 shown in Fig. 1 only by the formation of the rotor shaft bearing and by dispensing with the filter 12 in Zuglassöffhung 11. Instead of the sliding bearing 4 of FIG. 1, the rotor shaft 3 stored in this embodiment by a roller bearing 104 in the pump housing base body 5.
- FIG. 3 shows a further sectional view of the electric coolant pump 1 shown in FIG. 1. While the inflow of the coolant through the cooling circuit is only shown schematically in FIG. 1, FIG. 3 shows a cover-side housing end closure 14, which together with forms a concrete configuration for a flow space for the coolant in the region of the coolant pump 1 the pump housing base 5 and the pump impeller 2.
- a projection 15 is formed on the impeller-side housing closure 14, which serves as a thrust bearing for the rotor shaft 3. Together with the sliding bearing 4, this extension 15 thus ensures a stable Storage of the rotor shaft 3 and mounted on the rotor shaft 3 pump impeller
- the axial bearing of the rotor shaft 3 is formed in the housing end 14 on the wingwheel side.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018104770.3A DE102018104770A1 (de) | 2018-03-02 | 2018-03-02 | Elektrische Kühlmittelpumpe |
PCT/EP2018/084743 WO2019166118A1 (de) | 2018-03-02 | 2018-12-13 | Elektrische kühlmittelpumpe |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3759356A1 true EP3759356A1 (de) | 2021-01-06 |
EP3759356B1 EP3759356B1 (de) | 2022-11-23 |
Family
ID=64755531
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18825616.8A Active EP3759356B1 (de) | 2018-03-02 | 2018-12-13 | Elektrische kühlmittelpumpe |
Country Status (6)
Country | Link |
---|---|
US (1) | US11708843B2 (de) |
EP (1) | EP3759356B1 (de) |
CN (1) | CN111801501A (de) |
BR (1) | BR112020017549A2 (de) |
DE (1) | DE102018104770A1 (de) |
WO (1) | WO2019166118A1 (de) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102021214755A1 (de) * | 2021-12-21 | 2023-06-22 | Vitesco Technologies GmbH | Gehäusevorrichtung für eine Fluidpumpe |
US20230303839A1 (en) * | 2022-02-01 | 2023-09-28 | Ticona Llc | Polymer Composition with a High Degree of Thermal Shock Resistance |
CN114458608B (zh) * | 2022-02-10 | 2024-01-30 | 瑞希特(浙江)科技股份有限公司 | 一种冷却效果突出的管道屏蔽电泵 |
Family Cites Families (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4198191A (en) * | 1978-04-07 | 1980-04-15 | General Electric Company | Vaporization cooled dielectric fluid pump |
US5053664A (en) * | 1989-01-18 | 1991-10-01 | Aisan Kogyo Kabushiki Kaisha | Motor-driven fuel pump |
WO1997008807A1 (de) * | 1995-08-24 | 1997-03-06 | Sulzer Electronics Ag | Elektromotor |
US6011331A (en) * | 1997-04-22 | 2000-01-04 | Emerson Electric Co. | Electric motor having an improved airflow cooling system |
US5997261A (en) * | 1997-10-31 | 1999-12-07 | Siemens Canada Limited | Pump motor having fluid cooling system |
EP0913582B1 (de) | 1997-10-31 | 2003-09-24 | Siemens VDO Automotive Inc. | Pumpenmotor mit Tauchstator und Tauchrotor |
US5949171A (en) * | 1998-06-19 | 1999-09-07 | Siemens Canada Limited | Divisible lamination brushless pump-motor having fluid cooling system |
US6447270B1 (en) * | 1998-09-17 | 2002-09-10 | Walbro Corporation | Brushless coolant pump and cooling system |
US6319116B1 (en) * | 1999-04-12 | 2001-11-20 | Inclose Design, Inc. | Memory storage device docking adapter having hinged air filter |
JP4060252B2 (ja) * | 2003-08-25 | 2008-03-12 | 山洋電気株式会社 | ファンモータ |
US7210304B2 (en) * | 2005-02-09 | 2007-05-01 | General Motors Corporation | Cooling arrangements for integrated electric motor-inverters |
AT502566B1 (de) * | 2005-10-13 | 2007-08-15 | Tcg Unitech Systemtechnik Gmbh | Kühlmittelpumpe |
US20070140844A1 (en) * | 2005-12-19 | 2007-06-21 | Nidec Corporation | Axial Flow Fan |
DE102007055907A1 (de) * | 2007-12-21 | 2009-06-25 | Geräte- und Pumpenbau GmbH Merbelsrod | Kühlmittelpumpe |
DE102009009898A1 (de) * | 2009-02-20 | 2010-08-26 | Bayerische Motoren Werke Aktiengesellschaft | Kühlmittelpumpe für Fahrzeuge |
US8080909B2 (en) * | 2009-05-19 | 2011-12-20 | Ford Global Technologies, Llc | Cooling system and method for an electric motor |
US9562534B2 (en) * | 2012-05-04 | 2017-02-07 | Ghsp, Inc. | In-line dual pump and motor with control device |
TW201346141A (zh) * | 2012-05-10 | 2013-11-16 | Ji Ee Industry Co Ltd | 電動水泵 |
DE102013211181B3 (de) * | 2013-06-14 | 2014-08-21 | E.G.O. Elektro-Gerätebau GmbH | Pumpe |
CN105186725A (zh) * | 2014-05-28 | 2015-12-23 | 德昌电机(深圳)有限公司 | 电动流体泵及其电机定子结构 |
DE102015214788A1 (de) * | 2015-08-03 | 2017-02-09 | Magna Powertrain Bad Homburg GmbH | Elektrischer Verdichter und Verfahren zur Herstellung eines elektrischen Verdichters |
CN206175322U (zh) * | 2016-11-08 | 2017-05-17 | 常州市凯程精密汽车部件有限公司 | 具有内循环冷却回路的电子水泵 |
CN107228074B (zh) * | 2017-07-31 | 2019-12-17 | 广东威灵汽车部件有限公司 | 电子水泵 |
-
2018
- 2018-03-02 DE DE102018104770.3A patent/DE102018104770A1/de active Pending
- 2018-12-13 WO PCT/EP2018/084743 patent/WO2019166118A1/de active Application Filing
- 2018-12-13 EP EP18825616.8A patent/EP3759356B1/de active Active
- 2018-12-13 BR BR112020017549-8A patent/BR112020017549A2/pt not_active Application Discontinuation
- 2018-12-13 US US16/976,663 patent/US11708843B2/en active Active
- 2018-12-13 CN CN201880090629.6A patent/CN111801501A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
US11708843B2 (en) | 2023-07-25 |
US20210003147A1 (en) | 2021-01-07 |
DE102018104770A1 (de) | 2019-09-05 |
EP3759356B1 (de) | 2022-11-23 |
WO2019166118A1 (de) | 2019-09-06 |
CN111801501A (zh) | 2020-10-20 |
BR112020017549A2 (pt) | 2020-12-22 |
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