US20190085848A1 - Pump assembly with rapid assembly - Google Patents

Pump assembly with rapid assembly Download PDF

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Publication number
US20190085848A1
US20190085848A1 US16/128,166 US201816128166A US2019085848A1 US 20190085848 A1 US20190085848 A1 US 20190085848A1 US 201816128166 A US201816128166 A US 201816128166A US 2019085848 A1 US2019085848 A1 US 2019085848A1
Authority
US
United States
Prior art keywords
box
pump assembly
centrifugal pump
assembly according
stator housing
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.)
Abandoned
Application number
US16/128,166
Other languages
English (en)
Inventor
Francesco Sinico
Michele CAPPOCCHIN
Stefano Tazioli
Pietro CAILOTTO
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
DAB Pumps SpA
Original Assignee
DAB Pumps SpA
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 DAB Pumps SpA filed Critical DAB Pumps SpA
Assigned to DAB PUMPS S.P.A. reassignment DAB PUMPS S.P.A. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: CAILOTTO, Pietro, CAPPOCCHIN, MICHELE, SINICO, FRANCESCO, TAZIOLI, STEFANO
Publication of US20190085848A1 publication Critical patent/US20190085848A1/en
Abandoned legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D1/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal 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
    • 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
    • F04D13/0606—Canned motor pumps
    • F04D13/0626—Details of the can
    • 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
    • F04D13/0606—Canned motor 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
    • F04D13/0686—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
    • F04D13/08—Units comprising pumps and their driving means the pump being electrically driven for submerged use
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
    • 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
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal 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
    • F04D29/40—Casings; Connections of working fluid
    • F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
    • F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/60—Mounting; Assembling; Disassembling
    • F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
    • F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
    • 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
    • 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
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
    • H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans

Definitions

  • the present disclosure relates to a centrifugal pump assembly, with electric motor.
  • the disclosure also relates to a covering and/or connecting element for such a centrifugal pump assembly, with electric motor.
  • centrifugal pump assemblies are composed substantially of a hollow body provided with intake and deliver ducts and containing one or more impellers interleaved by diffusers and keyed on the shaft of an electric motor enclosed inside a motor casing that isolates it from the pumping liquid.
  • An electrical board contained in a box, powers and controls the operation of the motor.
  • a covering element adapted to keep the pump assembly together.
  • the electric motor and the electrical box are usually fixed by using screws and this determines an expenditure in terms of time and costs for the provision of the product and for its maintenance.
  • the covering element where present, is also fixed by means of screws and this determines an expenditure in terms of time and costs for the provision of the product and for its maintenance.
  • the covering element is not a structural element but serves only as an aesthetic element.
  • the aim of the present disclosure is to provide a centrifugal pump assembly, with electric motor, that is capable of improving the background art in one or more of the above-mentioned aspects.
  • the disclosure provides a centrifugal pump assembly, with electric motor, that comprises an intermediate covering and/or connecting element between the electric motor and the electrical box.
  • the disclosure also provides a centrifugal pump assembly, with electric motor, in which said covering and/or connecting element is fixed to the assembly by reducing the costs and time necessary for assembling and maintaining the product.
  • the disclosure further provides a centrifugal pump assembly, with electric motor, in which said covering and/or connecting element is customizable and has a pleasant visual impact.
  • the disclosure provides a centrifugal pump assembly, with electric motor, that comprises an element capable of protecting at least partially the user from the heat generated in the electric motor casing.
  • the present disclosure overcomes the drawbacks of the background art in a manner which is alternative to any existing solutions.
  • the disclosure further provides a centrifugal pump assembly, with electric motor, that is highly reliable, relatively easy to provide and at competitive costs.
  • centrifugal pump assembly with electric motor, arranged in a stator housing, in which a box, containing an electrical board, is arranged at one end of said stator housing, characterized in that it comprises an intermediate element between said motor and said box, adapted to be integral therewith, being complementary, on one side, to said stator and, on the other side, to said box.
  • FIG. 1 is an exploded view of the pump assembly according to the disclosure
  • FIG. 2 is a sectional view of the pump assembly of FIG. 1 ;
  • FIG. 3 is a sectional view of a detail of the pump assembly according to the disclosure.
  • centrifugal pump assembly with electric motor according to the disclosure, is generally designated by reference numeral 10 .
  • the centrifugal pump assembly 10 comprises a wet region having intake and delivery ducts, not shown in the figures, of the known type, and an impeller, also not shown in the figures, of the known type, submerged in the wet region.
  • the impeller is keyed on a shaft 17 of an electric motor 19 composed of a stator 12 and a rotor 18 .
  • the electric motor is placed in a stator housing 11 , adapted to insulate it from the wet region.
  • the centrifugal pump assembly 10 comprises, at one end, an electrical box 13 , which contains an electrical board 14 adapted to control and power the electric motor 19 .
  • the electrical box 13 has a cylindrical shape and is closed at the free end by a lid 15 .
  • the electric motor 19 and the electrical box 14 are extended along a same axis X, which coincides with the rotational axis of the motor and of the impeller.
  • the electric motor 19 and the electrical box 14 are connected and rendered integral by the presence of an intermediate element 16 .
  • the intermediate element 16 is a connecting and/or covering element and has a tubular shape.
  • the intermediate element 16 is made of plastic material and has some raised portions on its surface which can be customized. At the same time, the color of the intermediate element 16 can also be customized so as to generate a pleasant visual impact in the user.
  • the intermediate element 16 resided in the type of fixing to the electrical box 13 and to the stator housing 11 .
  • the connecting element 16 has components adapted to be complementary, on one side, to components of the electrical box 13 and, on the other side, to components of the stator housing 11 , generating couplings by interlocking with interference.
  • the intermediate element 16 can fix the box 13 to said stator housing even in a different manner.
  • the intermediate element 16 has seats and/or holes 20 adapted for the insertion of protrusions 21 , conveniently shaped on the surface that is lateral and parallel to the axis X, of rotation of the impeller, of the electrical box 13 , generating an interlock.
  • the intermediate element 16 there are elements, such as for example teeth 22 , on the inner tubular surface, adapted to generate an interference with elements such as, for example, projections 23 , conveniently shaped on the surface of the stator housing 11 that is outer lateral and parallel to the axis X, of rotation of the impeller.
  • the intermediate element 16 has such a dimension to cover, at least partially, both the box 13 and the stator housing 11 .
  • the intermediate element 16 covers the box 13 , on one side, and the stator housing 11 up to the section for connection therewith.
  • the electrical box 13 and the stator housing 11 have mutually complementary contact surfaces.
  • first pins 28 extend which are adapted to be inserted in corresponding through holes 29 present on the contact surface of the stator housing 11 .
  • the pins 28 are adapted to connect the box 13 and the housing 11 and to facilitate the assembly of the pump 10 .
  • the box 13 has one or more second pins 30 , which are extended inside the box 13 and in the direction of the lid 15 , the tips of which are adapted for insertion in corresponding holes present on the surface of the lid 15 that is directed toward the inside of the box 13 .
  • the pins 30 are adapted to connect the box 13 and the lid 15 and to facilitate the assembly of the pump 10 .
  • Male connecting plates 24 extend from the electrical board 14 and are adapted to enter female terminals 25 connected to the electric motor 19 . In this manner, the board 14 can power and control the electric motor 19 .
  • the electrical board 14 has, at one end, a connector 26 adapted to be inserted in an electric power supply terminal, which is external to the pump. At the region of insertion of said terminal, the box 13 has a tab 27 that protrudes with respect to the intermediate element 16 .
  • the stator housing 11 has, at the end that is opposite the end for contact with the electrical box 13 , a perimetric annular tab 31 having a plurality of through holes 32 , adapted to the insertion of screws 34 for fixing the stator housing 11 to the body of said intake and delivery ducts, not visible in the figures.
  • the electrical box 13 is provided internally with a tubular body 34 with an axis of extension that coincides with the axis X.
  • the tubular body 34 can have an extension that does not coincide with the axis X, but is parallel thereto.
  • the tubular body 34 extends from the surface of contact with the stator housing 11 to the lid 15 of the electrical box 13 .
  • both the electrical board 14 and the lid 15 have a through hole 36 with an axis of extension that coincides with the axis X.
  • the through hole 36 and the tubular body 34 are adapted for the insertion of a venting or inspection plug 35 with an end in contact with the wet region.
  • the tubular body 34 and the hole 36 of the lid 15 have such dimensions and shapes to ensure an interference and insulation of the electrical board 14 from the wet region, even in the event of venting.
  • the seal between the wet region and the plug 35 is ensured by an O-ring 37 , of the known type, the seal of which between the wet region, the electrical box 13 and the stator housing 11 is ensured by a gasket 38 of the known type.
  • the gasket 38 is co-molded on the box 13 .
  • the intermediate element 16 allows to connect and render the electric motor 19 and the electrical box 13 integral by simple interlocking, without the need to use fixing screws, reducing the number of operations and the assembly and maintenance costs.
  • said intermediate element 16 partially protects the user from the heat generated during the operation of the motor 19 on the stator housing 11 .
  • intermediate element 16 allows a customization both in terms of shape and in terms of color, generating a pleasant visual impact.
  • centrifugal pump assembly with electric motor, arranged in a stator housing, in which a box is arranged at one end of said stator housing, and comprising an intermediate element between the motor and the box, adapted to be integral therewith, being complementary, on one side, to the stator and, on the other side, to the box.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US16/128,166 2017-09-18 2018-09-11 Pump assembly with rapid assembly Abandoned US20190085848A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT102017000103807A IT201700103807A1 (it) 2017-09-18 2017-09-18 Assemblato di pompa a montaggio rapido
IT102017000103807 2017-09-18

Publications (1)

Publication Number Publication Date
US20190085848A1 true US20190085848A1 (en) 2019-03-21

Family

ID=60991457

Family Applications (1)

Application Number Title Priority Date Filing Date
US16/128,166 Abandoned US20190085848A1 (en) 2017-09-18 2018-09-11 Pump assembly with rapid assembly

Country Status (8)

Country Link
US (1) US20190085848A1 (fr)
CN (1) CN109519390B (fr)
DE (1) DE102018121252A1 (fr)
FR (1) FR3071280B1 (fr)
GB (1) GB2567935B (fr)
IT (1) IT201700103807A1 (fr)
PL (1) PL234004B1 (fr)
SI (1) SI25519A (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113106707A (zh) * 2021-04-13 2021-07-13 无锡好力泵业有限公司 一种洗衣机变频排水泵及一种洗衣机

Family Cites Families (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE624399A (fr) * 1925-11-10 1962-11-30
DE8409001U1 (de) * 1984-03-23 1985-06-20 Robert Bosch Gmbh, 7000 Stuttgart Wechsel-, insbesondere Drehstrom-Generator für Fahrzeuge
PL166391B1 (pl) * 1991-06-20 1995-05-31 Inst Budownictwa Mech Pompa wirowa monoblokowa, cyrkulacy]na, z napędem elektrycznym
JPH09209975A (ja) * 1996-09-05 1997-08-12 Hitachi Ltd 水中モータ
PL183029B1 (pl) * 1997-01-24 2002-05-31 Miedzinski Bogdan Zespolona pompa odśrodkowa
DE19922234A1 (de) * 1999-05-14 2000-11-23 Richard Halm Vorrichtung zum Wandeln von elektrischer in mechanische Energie und/oder umgekehrt, insbesondere Spaltrohrmotor
PL208405B1 (pl) * 2002-05-07 2011-04-29 Emu Unterwasserpumpen Gmbh Silnik napędowy, zwłaszcza dla pompy
PL356855A1 (en) * 2002-10-25 2004-05-04 Politechnika Wrocławska Monobloc rotary pump
DK1437819T3 (da) * 2003-01-10 2009-03-02 Askoll Holding Srl Elektrisk permanentmagnetsynkronmotor til opvarmnings- og klimatiseringssystemers cirkulationspumper
EP2302220B1 (fr) * 2007-01-18 2013-11-13 Grundfos Management A/S Unité de pompage
PL213898B1 (pl) * 2009-06-08 2013-05-31 Politechnika Wroclawska Pompa wyporowa ze zintegrowanym napędem elektrycznym
JP5516976B2 (ja) * 2010-07-14 2014-06-11 アイシン精機株式会社 電動ポンプ
DE102011005140B4 (de) * 2011-03-04 2013-06-27 E.G.O. Elektro-Gerätebau GmbH Rasteinrichtung für ein Pumpengehäuse und Pumpe
EP2500577B1 (fr) * 2011-03-12 2016-06-22 Grundfos Management a/s Pompe de recirculation de chauffage
CN104024647B (zh) * 2011-12-27 2016-08-24 格兰富控股联合股份公司 泵机组
EP2738391B1 (fr) * 2012-11-28 2017-01-18 Pierburg Pump Technology GmbH Pompe à liquide de refroidissement électrique
EP2750268B1 (fr) * 2012-12-27 2015-10-14 Grundfos Holding A/S Groupe motopompe
EP2750269B1 (fr) * 2012-12-27 2017-03-01 Grundfos Holding A/S Groupe motopompe
CN203481966U (zh) * 2013-08-27 2014-03-12 昆山联华印务有限公司 水池用多重绝缘的过滤马达
CN105221441A (zh) * 2015-09-18 2016-01-06 河南省西峡汽车水泵股份有限公司 一种低能耗高寿命的汽车电动水泵

Also Published As

Publication number Publication date
FR3071280B1 (fr) 2021-04-02
FR3071280A1 (fr) 2019-03-22
DE102018121252A1 (de) 2019-03-21
GB2567935A (en) 2019-05-01
GB201814045D0 (en) 2018-10-10
PL234004B1 (pl) 2019-12-31
CN109519390B (zh) 2021-10-29
IT201700103807A1 (it) 2019-03-18
PL426927A1 (pl) 2019-03-25
GB2567935B (en) 2020-06-03
SI25519A (sl) 2019-03-29
CN109519390A (zh) 2019-03-26

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AS Assignment

Owner name: DAB PUMPS S.P.A., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:SINICO, FRANCESCO;CAPPOCCHIN, MICHELE;TAZIOLI, STEFANO;AND OTHERS;REEL/FRAME:046989/0751

Effective date: 20180821

STPP Information on status: patent application and granting procedure in general

Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION

STPP Information on status: patent application and granting procedure in general

Free format text: NON FINAL ACTION MAILED

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION