EP2589817A1 - Groupe motopompe - Google Patents

Groupe motopompe Download PDF

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Publication number
EP2589817A1
EP2589817A1 EP11188021.7A EP11188021A EP2589817A1 EP 2589817 A1 EP2589817 A1 EP 2589817A1 EP 11188021 A EP11188021 A EP 11188021A EP 2589817 A1 EP2589817 A1 EP 2589817A1
Authority
EP
European Patent Office
Prior art keywords
housing part
pump unit
unit according
conductor tracks
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.)
Granted
Application number
EP11188021.7A
Other languages
German (de)
English (en)
Other versions
EP2589817B1 (fr
Inventor
Lars Kannegaard Andersen
Lars Østergaard Nielsen
Lars Glowienka
Anders Anderson
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.)
Grundfos Holdings AS
Original Assignee
Grundfos Holdings AS
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 Grundfos Holdings AS filed Critical Grundfos Holdings AS
Priority to EP11188021.7A priority Critical patent/EP2589817B1/fr
Publication of EP2589817A1 publication Critical patent/EP2589817A1/fr
Application granted granted Critical
Publication of EP2589817B1 publication Critical patent/EP2589817B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • 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
    • 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
    • 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

Definitions

  • the invention relates to a pump unit with the features specified in the preamble of claim 1.
  • Pump units which have an electric drive motor, wherein a terminal box or electronics housing is usually arranged on the electric drive motor, in which electronic components for operation or for controlling or regulating the electric drive motor are arranged.
  • display or operating elements are generally arranged on such terminal boxes, via which functions of the pump unit can be adjusted and operating states of the pump unit can be displayed.
  • Such a pump unit is for example off EP 1 947 347 known.
  • operating and display elements in the form of light emitting diodes and push buttons are arranged in the axial cover of the terminal box. These are designed so that corresponding windows for the display elements and spring tongues for the push buttons are formed in the actual housing or wall part of the terminal box. Outside, this housing part is covered by a film which closes these windows and has on its outside a label for identifying the display and operating areas. Where the display elements are arranged, this film is partially transparent.
  • the actual electrical switching elements and display elements are arranged on a printed circuit board, which is below the housing part in the interior of the terminal box is arranged so that the switching elements can be actuated by the spring tongues in the housing part and light emitting diodes can shine through the windows in the housing part to the outside.
  • the pump unit according to the invention has a housing part made of plastic, in which at least one electrical operating or display element is arranged.
  • this plastic housing part is part of a terminal box or electronics housing of the pump unit.
  • a terminal box is preferably mounted on the stator housing of an electric drive motor of the pump unit, for example on the outer circumference or at the axial end of the stator housing.
  • the electric drive motor is connected in a known manner with a pump, wherein the pump housing and the stator housing of the electric drive motor are preferably connected directly to each other.
  • the housing part on which the at least one control or display element and the associated strip conductors are mounted, is a housing part, which closes a housing of the pump unit to the outside, so that the control or display elements are accessible from the outside.
  • the housing part is a wall of an electronics housing or terminal box, in which electrical and / or electronic components for controlling or for operating the pump unit are arranged.
  • this housing part in the form of the wall assumes a dual function, namely to complete the housing to the outside and to wear the other hand, the control and / or display elements and their electrical connections in the form of conductors.
  • the housing part may be, for example, a wall bounding the stator housing to the outside or a lid of the stator housing.
  • the housing part with the conductor tracks is preferably formed in MID technology, ie as a molded interconnect device or as an injection-molded circuit carrier.
  • a component can be made as a conventional housing part as an injection molded part made of plastic. Even during injection molding or subsequently conductor tracks can be arranged on this plastic part.
  • metallic tracks can be poured in during injection molding, so that they are inside the housing part or a wall of the housing part are located.
  • traces may be attached to one or more surfaces of the housing member during or after injection molding.
  • conductor tracks can be inserted into the mold and the plastic can be cast directly to the tracks.
  • printed conductors can be subsequently applied by suitable coating techniques to one or more surfaces of the injection-molded housing part.
  • electrical or electronic components are preferably also arranged directly on the housing part, ie in particular the at least one operating or display element described above.
  • a component can likewise be fastened directly to the housing part in the injection molding process or can be attached thereto after the injection molding, for example by gluing or soldering, in which case electrical contacting with the conductor tracks on the housing part can likewise be effected by suitable adhesive or soldering techniques. Any other suitable contact can be used here.
  • the at least one housing part forms the mechanical support of the at least one operating or display element and at the same time carries the electrical conductor tracks for the electrical connection of this operating or display element.
  • the housing part thus has in addition to the function to complete the housing to the outside, another dual function, namely to serve the electrical contact and the mechanical attachment of the control or display element.
  • the housing part can preferably be geometrically shaped to accommodate the at least one operating or display element, for example, have elevations or recesses or depressions on the surface, in which operating and / or display elements are used, so that their surface is preferably substantially flush with the other surface of the housing part closes and the components do not protrude beyond the surface.
  • the housing part thus preferably has a three-dimensional surface contouring, wherein the electrical conductor tracks can be arranged on the surface in such a way that they follow this three-dimensional contour of the surface.
  • the housing part is covered on its outside by a cover or cover.
  • a cover or cover This preferably covers both the optionally arranged on the corresponding surface of the housing part traces and operating and / or display elements, so that a smooth, closed surface is created outwardly.
  • the conductor tracks are protected by the preferably electrically insulating cover or film from short circuits and damage.
  • the operating and display elements are protected. This is particularly advantageous in pump sets, as they are often used in a humid environment, so that the cover protects the underlying areas from moisture.
  • the cover film is preferably glued to the underlying housing part or connected in another suitable manner, wherein preferably a tight connection, which prevents ingress of moisture, is provided. On the cover necessary labels may be appropriate.
  • At least a recessed or transparent viewing window for a display element, which is located below the cover film, may be formed on the cover film.
  • the cover can be elastically deformable at least in the region of a control element, so that the control element can be actuated by pressure on the cover.
  • the control element can be, for example, an electrical switch or pushbutton, which is arranged below the covering film.
  • the electrical conductor tracks can be arranged on one or both surfaces of a wall of the housing part. Via recesses or holes in the wall, in addition, strip conductors can be connected to one another on both surfaces. Also, conductors or conductors can be poured into the wall. Thus, at least portions of the conductor tracks may be located in the interior of a wall of the housing part. These may be, for example, sections which interconnect interconnects on the two opposite surfaces of the wall. Such conductor tracks are preferably arranged by pouring in the interior of the wall. Alternatively, it is also possible to provide holes in the wall during injection molding, on the inner surface then later electrical interconnects are attached by suitable coating technique or in which electrical conductors are used.
  • further electrical or electronic components are preferably arranged on the housing part, which are electrically contacted via the conductor tracks arranged directly on the housing part.
  • These may be electronic components which serve to control operating or display elements or take over further control or regulating functions for the operation of the pump unit.
  • these may also be electrical components that serve the communication, such as infrared interfaces, radio interfaces or electronic Components which serve for the operation or control of communication interfaces.
  • z. B. memory devices can be arranged in this way.
  • any type of electrical or electronic components can be arranged in this way on the housing part and electrically contacted via conductor tracks, which are arranged directly on the housing.
  • the pump unit to an electric drive motor with a frequency converter.
  • the electrical and electronic components of the frequency converter are preferably arranged in a terminal box or electronics housing of the pump unit.
  • components of the frequency converter can be arranged in the interior of the stator housing.
  • At least one component of the frequency converter is arranged on a housing part and electrically contacted via the conductor tracks attached directly to the housing part.
  • This is preferably the housing part, on which also the at least one operating or display element is arranged, which has been described above. Due to the arrangement of electronic components, preferably of all electronic components of the frequency converter to one or more housing parts, wherein the electrical contacting takes place via directly mounted on the housing parts traces, the construction of the pump assembly is further simplified because no additional circuit boards for supporting the electronic components must be provided, but these are attached to the housing parts required anyway and can be contacted via this electrically.
  • the housing part or the housing parts, on which the at least one operating or display element or optionally further electrical or electronic components are arranged is preferably part of a terminal box or electronics housing of the pump unit.
  • this housing part may for example also be a housing part of the stator housing of the electric drive motor. This is particularly suitable when the electronic components required for controlling the drive motor or pump unit are arranged directly in the stator housing. Then this can be closed by a lid which forms the housing part, are arranged on the control or display elements in the manner described above.
  • the pump unit is designed as a circulating pump unit, in particular a heating circulating pump unit.
  • Umisselzpumpenaggregat can be used to circulate water in a heating or air conditioning or, for example, to circulate hot water.
  • the pump unit as electric drive motor on a canned motor, d. H. an electric drive motor, wherein the rotor space and the stator space are separated by a split tube or a containment shell.
  • the invention will be described by way of example with reference to a heating circulating pump unit as shown in FIG Fig. 1 is shown.
  • the pump unit has a pump housing 2, in which in a known manner an impeller is arranged and which has a suction nozzle 4 and a discharge nozzle 6.
  • a stator 8 is flanged by means of screws 10.
  • an electric drive motor is arranged, which is formed in a known manner as a wet-running electric motor with a split tube.
  • a terminal box 12 is attached, which forms an electronics housing, in which the electronic components for controlling and regulating the electric drive motor are arranged.
  • the terminal box 12 is shown in detail in FIG Fig. 2 shown.
  • the terminal box 12 has a tubular housing part 14, which with a first axial end 16 is connected to the stator housing 8. At the opposite second axial end 18 of the tubular housing part 14 is closed by a front-side cover 20.
  • the lid 20 carries operating elements 22 in the form of push buttons and display elements 24, which are formed by lighting elements, in particular in the form of light-emitting diodes.
  • the cover 20 is inventively designed so that it not only closes the terminal box 12 on the axial side, but also also carries the controls and indicators 24 and other electronic components.
  • the lid 20 is formed of two parts, namely on the one hand from the carrier 28 and a film 30.
  • the carrier 28 forms the actual housing part, which closes the terminal box on the axial side and forms the mechanically supporting structure of the lid 20.
  • the carrier 28 is covered by the covering film 30.
  • transparent or partially transparent viewing windows 24a are formed in the cover film 30, which allow light to shine outward from light-emitting diodes 24b located below the film 30.
  • pressure fields 22a are formed in the film 30, which on the one hand carry a corresponding inscription and on the other hand are elastically deformable in order to actuate buttons 22b located below the pressure fields 22a.
  • the film 30 is completely closed so that it can protect the underlying electrical components from moisture and damage.
  • the carrier 28 is preferably formed as an injection molded part and carries next to the light emitting diodes 24b and the buttons 22b further electronic components 32. These are like the buttons 22b and the light emitting diodes 24b arranged in recesses 34 so that they do not project beyond the remaining surface 36 in the axial direction X. Thus, the surface 36, together with the depressions 34, can be covered by the planar cover film 30, which thus closes the depressions with the electronic components 32, the buttons 22b and the light-emitting diodes 24b arranged therein.
  • the pressure fields 22a By deformation of the pressure fields 22a, the underlying buttons 22b can be actuated.
  • the pressure fields 22a in the idle state can be slightly outward, ie raised in the direction away from the carrier 28.
  • the electrical and electronic components 32 as well as the operating and display elements in the form of the buttons 22b light emitting diodes 24b are contacted on the carrier 28 via printed conductors 38, which are formed directly on the carrier 28.
  • printed conductors 38 which are formed directly on the carrier 28.
  • the carrier 28 serves at the same time to close the terminal box 12 on the axial side to the outside, d. H. to form a mechanically bearing housing part, and to carry electronic components and associated conductor tracks 38.
  • the carrier 28 is made as an injection molded part of plastic and has the recesses 34, as in Fig. 4 shown. After injection molding of the carrier 28 are applied to this, as in Fig. 5 shown, it can be seen that the tracks 38 follow the three-dimensional structure of the carrier 28, ie hineinerglazedn into the recesses 34 and there connection points or contacts for the electronic components 32, light-emitting diodes 24b and buttons 22b have, which can be soldered there in the usual way, for example in SMD technology.
  • the conductor tracks 38 can be formed on the surface of the carrier 28 by suitable printing or coating methods, however, they can also be arranged in the mold during injection molding in such a way that they are cast into the carrier 28 or the carrier 28 is cast onto the conductor tracks 38 becomes.
  • the film 30 is applied to the surface 36 of the carrier 28, in particular glued, so that the conductor tracks 38 and the electronic components are covered by the film and so from moisture and damage to be protected.
  • This layered construction is in Fig. 7 shown, wherein the tracks 38 due to their size in Fig. 7 are not recognizable.
  • electrical connections or conductor tracks can be led into the interior of the terminal box 12 through holes in the carrier 28.
  • electrical contacts or traces may be molded into the carrier 28 which extend into the interior of the terminal box 12 to be contacted there.
  • the surface of the carrier 28 can be optimally utilized if conductor tracks 38 and electronic components 32 are arranged on both sides.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
EP11188021.7A 2011-11-07 2011-11-07 Groupe motopompe Active EP2589817B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP11188021.7A EP2589817B1 (fr) 2011-11-07 2011-11-07 Groupe motopompe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP11188021.7A EP2589817B1 (fr) 2011-11-07 2011-11-07 Groupe motopompe

Publications (2)

Publication Number Publication Date
EP2589817A1 true EP2589817A1 (fr) 2013-05-08
EP2589817B1 EP2589817B1 (fr) 2017-12-13

Family

ID=45756893

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11188021.7A Active EP2589817B1 (fr) 2011-11-07 2011-11-07 Groupe motopompe

Country Status (1)

Country Link
EP (1) EP2589817B1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT201700045778A1 (it) * 2017-04-27 2018-10-27 Taco Italia S R L Circolatore di fluido con display
US10284047B2 (en) 2016-05-09 2019-05-07 Bluffton Motor Works Llc Electric motor for washdown, food processing, and chemical applications
LU500868B1 (de) * 2021-11-17 2023-05-23 Wilo Se Kreiselpumpe

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001665A1 (fr) * 1997-07-03 1999-01-14 Servo Magnetics, Incorporated Pompe de regulation integree
DE10005505A1 (de) * 2000-02-08 2001-08-16 Grundfos As Steckbarer Klemmenkasten
WO2008019818A1 (fr) * 2006-08-14 2008-02-21 Grundfos Management A/S Ensemble de stator pour un groupe de pompes
EP1947347A1 (fr) 2007-01-18 2008-07-23 Grundfos Management A/S Unité de pompage

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1999001665A1 (fr) * 1997-07-03 1999-01-14 Servo Magnetics, Incorporated Pompe de regulation integree
DE10005505A1 (de) * 2000-02-08 2001-08-16 Grundfos As Steckbarer Klemmenkasten
WO2008019818A1 (fr) * 2006-08-14 2008-02-21 Grundfos Management A/S Ensemble de stator pour un groupe de pompes
EP1947347A1 (fr) 2007-01-18 2008-07-23 Grundfos Management A/S Unité de pompage

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10284047B2 (en) 2016-05-09 2019-05-07 Bluffton Motor Works Llc Electric motor for washdown, food processing, and chemical applications
IT201700045778A1 (it) * 2017-04-27 2018-10-27 Taco Italia S R L Circolatore di fluido con display
EP3396167A1 (fr) * 2017-04-27 2018-10-31 TACO ITALIA S.r.l. Circulateur de fluide comportant un écran
LU500868B1 (de) * 2021-11-17 2023-05-23 Wilo Se Kreiselpumpe

Also Published As

Publication number Publication date
EP2589817B1 (fr) 2017-12-13

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