WO2020064812A1 - Trockenläuferpumpe mit ringkondensator - Google Patents
Trockenläuferpumpe mit ringkondensator Download PDFInfo
- Publication number
- WO2020064812A1 WO2020064812A1 PCT/EP2019/075824 EP2019075824W WO2020064812A1 WO 2020064812 A1 WO2020064812 A1 WO 2020064812A1 EP 2019075824 W EP2019075824 W EP 2019075824W WO 2020064812 A1 WO2020064812 A1 WO 2020064812A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- sealing flange
- dry
- pump according
- pump
- motor
- Prior art date
Links
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
- 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
- F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
- F04D13/086—Units comprising pumps and their driving means the pump being electrically driven for submerged use the pump and drive motor are both submerged
-
- 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
- F04D13/0686—Mechanical details of the pump 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
- 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
- F04D29/08—Sealings
- F04D29/10—Shaft sealings
- F04D29/12—Shaft sealings using sealing-rings
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial 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
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5813—Cooling the control unit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
- H02K11/30—Structural association with control circuits or drive circuits
- H02K11/33—Drive circuits, e.g. power electronics
-
- 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
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- 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
- F04D13/0673—Units comprising pumps and their driving means the pump being electrically driven the motor being of the inside-out type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K2213/00—Specific aspects, not otherwise provided for and not covered by codes H02K2201/00 - H02K2211/00
- H02K2213/03—Machines characterised by numerical values, ranges, mathematical expressions or similar information
Definitions
- the present invention relates to a dry-running pump with the
- Dry-running pumps require commutation electronics that can be arranged between the stator and the sealing flange.
- the available installation space is very scarce.
- the cup-shaped capacitors common today are the largest components on the printed circuit board and generally lead to the fact that the total length of the pump housing has to be increased in order to
- a single-phase motor for submersible pumps is known from published patent application US 2002/0171301 A1, which has a ring capacitor which is arranged between a pump head and a stator winding package.
- a submersible pump is known from the patent US Pat. No. 6,359,353 B1, which shows an annular condenser arranged in a stator chamber.
- the ring capacitor is spaced from the stator and encloses a rotor chamber.
- the electric motor is a capacitor motor. It uses the energy of the capacitor during the starting process. The capacitor creates a phase shift to generate additional torque.
- the object of the present invention is a dry-running pump
- a control unit which is connected to the motor for control
- a pump housing carrying the pumped medium in which an impeller is arranged
- control unit is connected to the sealing flange on the side remote from the impeller, and wherein the control unit comprises a circuit board in particular in the form of a ring and a ring capacitor arranged thereon, the ring capacitor being arranged in the longitudinal direction between the circuit board and the sealing flange and concentrically with both and in the immediate vicinity Attachment to the sealing flange
- the ring capacitor is not only arranged to save space, it also transfers the heat generated in the control unit to the sealing flange so that it can be dissipated.
- the ring capacitor preferably bears with a first end face on the printed circuit board and with a second end face opposite the first end face on the side of the sealing flange remote from the impeller.
- the sealing flange is preferably cooled on its side near the impeller by means of a flowing medium.
- the sealing flange is formed from a material with increased thermal conductivity, in particular aluminum.
- the motor is an electronically commutated electric motor, having a stator and a rotor, the stator being seated on a side of the sealing flange remote from the impeller.
- the rotor is non-rotatably connected to the pump shaft. It is preferred that the dry rotor pump is designed as an external rotor.
- the pump shaft preferably penetrates the sealing flange. It is advantageous if a between the pump shaft and the sealing flange
- the ring capacitor is attached to the circuit board by means of push-through technology and soldering.
- the height of the ring capacitor in the longitudinal direction is many times smaller than the ring width.
- a coolant pump for motor vehicles which has a previously described dry rotor pump.
- FIG. 1 shows a longitudinal section through a dry-running pump 1 along a longitudinal axis 100 of a pump shaft 2.
- the pump 1 is designed as an external rotor.
- the pump 1 is enclosed by a housing 3, the housing 3 having a pump housing 4 with a suction nozzle 5, through which the pumped medium is moved.
- In the pump housing 4 is one on the
- a sealing flange 7 is used, which is a dome-like
- the recess 9 surrounds a bearing 10 in which the pump shaft 2 is rotatably mounted.
- the sealing flange 7 is used to seal the pump housing 4 carrying the conveying medium with respect to a motor 11 which drives the pump shaft 2.
- a mechanical seal 12 is located in the end of the recess 9 remote from the impeller
- a seat 13 for a stator 14 is provided on the outside of the elevation.
- the stator 14 has a centrally penetrating bore 15 which is penetrated by the sealing flange 7, so that the stator 14 is firmly seated on the elevation 8 of the sealing flange 7 concentric to the longitudinal axis 100.
- the mechanical seal 12 lies at the level of the stator 14.
- the stator 14 is surrounded on the outside by a cup-shaped rotor 16.
- the rotor 16 is non-rotatably on the
- the rotor 16 is completely one
- Surround motor cover 18 which is connected to the pump housing 4 and the sealing flange 7 lying between them in the axial direction.
- stator 14 is connected to a control unit 19, which is arranged lying inside the housing 3, seen in the longitudinal direction, between the stator 14 and the sealing flange 7.
- Control unit 19 has a printed circuit board 20, on which an annular capacitor 21 is attached.
- the attachment is preferably done with the so-called
- the ring capacitor 21 rests with a first end face on the printed circuit board 20.
- the ring capacitor 21 surrounds the elevation of the sealing flange 8 and is arranged concentrically with this and the longitudinal axis 100.
- the ring capacitor 21 bears directly on the outside of the sealing flange 7 with a second end face opposite the first end face.
- the ring capacitor 21 has an inner radius and an outer radius.
- the ring width b represents the difference between the two radii. The extends in the longitudinal direction
- the height of the capacitor is many times smaller than the ring width.
- the height of the capacitor h is between 3 mm to 15 mm.
- the ring capacitor 21 enables a flat, compact design
- Printed circuit board 20 As a result of the large contact area with the printed circuit board 20, there is a very good vibration-resistant connection of the ring capacitor 21 to the control unit 19. Since the ring capacitor 21 is in direct contact with the sealing flange, it can absorb and dissipate heat loss from the control unit 19 due to the large contact area transfer the sealing flange 7. Prefers the ring capacitor 21 is glued to the sealing flange 7.
- the sealing flange 7 is preferably made of aluminum and has good thermal conductivity, so that the heat can be transferred from the ring capacitor 21 via the sealing flange 7 to the pumped medium.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112021005158-9A BR112021005158A2 (pt) | 2018-09-25 | 2019-09-25 | bomba empanque com capacitor anular |
CN201980063296.2A CN112955660A (zh) | 2018-09-25 | 2019-09-25 | 包括环形电容器的填料函泵 |
US17/279,132 US20210396233A1 (en) | 2018-09-25 | 2019-09-25 | Glanded pump with ring capacitor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102018123565.8A DE102018123565A1 (de) | 2018-09-25 | 2018-09-25 | Trockenläuferpumpe mit Ringkondensator |
DE102018123565.8 | 2018-09-25 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2020064812A1 true WO2020064812A1 (de) | 2020-04-02 |
Family
ID=68109290
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2019/075824 WO2020064812A1 (de) | 2018-09-25 | 2019-09-25 | Trockenläuferpumpe mit ringkondensator |
Country Status (5)
Country | Link |
---|---|
US (1) | US20210396233A1 (de) |
CN (1) | CN112955660A (de) |
BR (1) | BR112021005158A2 (de) |
DE (1) | DE102018123565A1 (de) |
WO (1) | WO2020064812A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102020132449A1 (de) | 2020-12-07 | 2022-06-09 | Nidec Gpm Gmbh | Elektrische Kreiselpumpe |
DE102020132447A1 (de) | 2020-12-07 | 2022-06-09 | Nidec Gpm Gmbh | Elektrische Kreiselpumpe |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5548169A (en) * | 1994-02-22 | 1996-08-20 | Oriental Motor Co., Ltd. | Motor with built-in capacitor |
US6359353B1 (en) | 2000-07-21 | 2002-03-19 | F. E. Myers Division Of Pentair Pump Group | Submersible motor unit |
US20020171301A1 (en) | 2000-04-11 | 2002-11-21 | Franco Neri | Single-phase motor particularly for submersed pumps |
JP2004254449A (ja) * | 2003-02-21 | 2004-09-09 | Mitsubishi Electric Corp | 回転電動機 |
CN205744484U (zh) * | 2016-05-11 | 2016-11-30 | 刘刚 | 一种电子水泵 |
CN107654388A (zh) * | 2017-09-29 | 2018-02-02 | 广东威灵电机制造有限公司 | 电子水泵 |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5825107A (en) * | 1997-06-13 | 1998-10-20 | General Electric Company | Drive package for a dynamoelectric machine |
GB2418072B (en) * | 2004-09-14 | 2008-05-07 | Dana Automotive Ltd | Pump assembly |
JP2013169136A (ja) * | 2012-01-17 | 2013-08-29 | Asmo Co Ltd | 駆動装置 |
GB201216099D0 (en) * | 2012-09-10 | 2012-10-24 | Protean Electric Ltd | Capacitor |
CN103790835B (zh) * | 2014-01-14 | 2017-01-18 | 苏州泰格动力机器有限公司 | 一体水套式永磁电机水泵 |
CN106298762B (zh) * | 2015-05-29 | 2019-04-02 | 富士电机(中国)有限公司 | 功率半导体模块及电动汽车驱动用电动机 |
CN106655641A (zh) * | 2015-10-29 | 2017-05-10 | 李宗平 | 一种内置控制系统电动机支撑结构 |
DE102016206405A1 (de) * | 2016-04-15 | 2017-10-19 | Bühler Motor GmbH | Pumpenmotor mit einem Festlager |
-
2018
- 2018-09-25 DE DE102018123565.8A patent/DE102018123565A1/de not_active Ceased
-
2019
- 2019-09-25 US US17/279,132 patent/US20210396233A1/en not_active Abandoned
- 2019-09-25 WO PCT/EP2019/075824 patent/WO2020064812A1/de active Application Filing
- 2019-09-25 CN CN201980063296.2A patent/CN112955660A/zh active Pending
- 2019-09-25 BR BR112021005158-9A patent/BR112021005158A2/pt not_active IP Right Cessation
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5548169A (en) * | 1994-02-22 | 1996-08-20 | Oriental Motor Co., Ltd. | Motor with built-in capacitor |
US20020171301A1 (en) | 2000-04-11 | 2002-11-21 | Franco Neri | Single-phase motor particularly for submersed pumps |
US6359353B1 (en) | 2000-07-21 | 2002-03-19 | F. E. Myers Division Of Pentair Pump Group | Submersible motor unit |
JP2004254449A (ja) * | 2003-02-21 | 2004-09-09 | Mitsubishi Electric Corp | 回転電動機 |
CN205744484U (zh) * | 2016-05-11 | 2016-11-30 | 刘刚 | 一种电子水泵 |
CN107654388A (zh) * | 2017-09-29 | 2018-02-02 | 广东威灵电机制造有限公司 | 电子水泵 |
Also Published As
Publication number | Publication date |
---|---|
BR112021005158A2 (pt) | 2021-06-15 |
US20210396233A1 (en) | 2021-12-23 |
CN112955660A (zh) | 2021-06-11 |
DE102018123565A1 (de) | 2020-03-26 |
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