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US20170130724A1 - Delivery device - Google Patents

Delivery device Download PDF

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Publication number
US20170130724A1
US20170130724A1 US15/346,368 US201615346368A US2017130724A1 US 20170130724 A1 US20170130724 A1 US 20170130724A1 US 201615346368 A US201615346368 A US 201615346368A US 2017130724 A1 US2017130724 A1 US 2017130724A1
Authority
US
United States
Prior art keywords
impeller
delivery device
rotor hub
rotor
openings
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
US15/346,368
Other languages
English (en)
Inventor
Thomas Bielesch
Reinhard Heine
Andrea Riexinger
Manuel Hesselmeier
Ali Yildiz
Markus Schatz
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.)
Mahle International GmbH
Original Assignee
Mahle International GmbH
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 Mahle International GmbH filed Critical Mahle International GmbH
Publication of US20170130724A1 publication Critical patent/US20170130724A1/en
Assigned to MAHLE INTERNATIONAL GMBH reassignment MAHLE INTERNATIONAL GMBH ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: HESSELMEIER, Manuel, RIEXINGER, Andrea, BIELESCH, THOMAS, HEINE, REINHARD, SCHATZ, MARKUS, YILDIZ, ALI
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
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
    • F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
    • F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
    • F04D25/064—Details of the rotor
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D19/00—Axial-flow pumps
    • F04D19/002—Axial flow fans
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D25/00—Pumping installations or systems
    • F04D25/02—Units comprising pumps and their driving means
    • F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/32—Rotors specially for elastic fluids for axial flow pumps
    • F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
    • F04D29/329—Details of the hub
    • 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
    • F04D29/64—Mounting; Assembling; Disassembling of axial pumps
    • F04D29/644—Mounting; Assembling; Disassembling of axial pumps especially adapted for elastic fluid pumps
    • F04D29/646—Mounting or removal of fans

Definitions

  • the present invention relates to a delivery device having a drive, which has a rotor, and having an impeller, which is connected rotationally conjointly to a rotor hub of the rotor.
  • U.S. Pat. No. 5,117,656 A has disclosed a generic delivery device in the form of a fan, having a drive, which has a rotor, and having an impeller, which is connected rotationally conjointly to a rotor hub of the rotor.
  • a disadvantage of the known installation methods is however that they are relatively expensive, because they can be automated only to a limited extent or not at all, and furthermore require high levels of investment in the production line.
  • the present invention is concerned with the problem of specifying, for a delivery device of the generic type, an improved or at least alternative embodiment by way of which, in particular, the installation of the delivery device can be made simpler and less expensive.
  • the present invention is based on the general concept of fixing an impeller of a delivery device, for example of a fan, to a rotor hub of a rotor by way of detent connections, and thus in a relatively simple and fast manner and furthermore without further fastening means.
  • detent connections it is for example possible for the impeller to be simply mounted and locked onto the rotor hub without further fastening means, for example, in particular screws, having to be screwed in manually for this purpose. It would furthermore be possible for the impeller to be pushed onto the rotor hub in this way in automated fashion, whereby there would preferably no longer be any need whatsoever for manual installation.
  • the rotor hub is expediently of pot-shaped form, and furthermore, at least three detent hooks which project in an axial direction are arranged on the impeller, which detent hooks engage behind an edge of the rotor hub in the installed state of the impeller.
  • the installation of the impeller on the rotor hub is thus realized by way of a simple axial pushing-on movement until the impeller-side detent hooks engage behind the edge of the rotor-side rotor hub and thus fix the impeller on the rotor hub.
  • spring elements are provided on the rotor hub or on the impeller, which spring elements brace the impeller against the rotor hub.
  • spring elements brace the impeller against the rotor hub.
  • edge be of continuous form, that is to say without recesses, and for pins to be provided on the impeller and/or on the rotor hub for the purposes of transmitting torque, which pins then engage into corresponding openings arranged on the impeller or on the rotor hub and prevent a relative rotation of the impeller with respect to the rotor hub.
  • the impeller and at least the detent hooks are formed as a unipartite plastics injection-moulded part.
  • the impeller in particular in the case of a delivery device in the form of a fan, it is expedient for the impeller to be formed as an inexpensive plastics injection-moulded part, wherein, in this context, it is additionally the case that at least the detent hooks, but preferably additionally also the spring elements or for example the pins, can be formed integrally on the impeller and can thereby be produced in a common plastics injection moulding process.
  • the impeller can be produced relatively inexpensively and nevertheless with high quality.
  • the rotor hub it is self-evidently also possible for the rotor hub to be formed as a plastics injection-moulded part.
  • the rotor hub is likewise of pot-shaped form and has at least three first and at least three second openings.
  • at least three hook elements and at least three clip elements which are subjected to pressure load, are arranged on the impeller, wherein the at least three hook elements engage behind an edge of an associated first opening in the installed state, and the at least three clip elements engage into the associated second openings and thereby fix the impeller rotationally conjointly, and axially without play owing to the preload, to the rotor hub.
  • the first and/or the second openings are in this case preferably arranged in a face side of the rotor hub.
  • the hook and clip elements to be formed on the rotor hub and for the associated first and second openings to be formed on the impeller.
  • the hook and clip elements it is likewise the case that relatively simple, fast and furthermore automatable installation of the impeller on the rotor hub is possible, because, for installation purposes, the impeller merely has to be pushed onto the rotor hub and subsequently rotated relative to the rotor hub, in the manner of a bayonet fastening, until the three hook elements engage behind the edge of the associated first openings and the three clip elements have engaged with detent action into the associated second openings.
  • the at least three first openings narrow in a circumferential direction. Owing to the wedge-like form of the at least three first openings, it is possible to realize relatively simple installation, in particular a simple insertion of the hook elements into the associated first openings, wherein, owing to the narrowing first openings, radial positioning of the impeller relative to the rotor hub can be realized. Furthermore, with first openings and associated hook elements precisely coordinated with one another, it is generally possible to realize forced radial fixing of the impeller of the rotor hub.
  • the impeller and at least the hook elements are in the form of a unipartite plastics injection-moulded part.
  • the clip elements may likewise be formed in one piece together with the impeller and the hook elements, or else may be separate metal elements.
  • the unipartite embodiment in particular offers the great advantage here that the impeller can be produced relatively inexpensively but nevertheless with high quality.
  • the delivery device is expediently in the form of a fan.
  • a fan of said type may be used for example in an air-conditioning system of a motor vehicle, wherein it is self-evidently also possible for other delivery devices, for example pump devices for liquid, to be equipped with the impeller fixed to the rotor hub in accordance with the invention by way of detent connections.
  • FIG. 1 is a partially sectional illustration through an impeller in a state fastened to a rotor hub
  • FIG. 2 is a detail illustration from FIG. 1 ,
  • FIG. 3 shows an impeller of a delivery device according to the invention in a front view and in a rear view
  • FIG. 4 shows a rotor hub of a delivery device according to the invention, again in a front view and in a rear view,
  • FIG. 5 is an illustration as in the rear view from FIG. 4 , but with an impeller installed
  • FIG. 6 shows a further possible alternative embodiment of the impeller in a front view
  • FIG. 7 is an illustration as in FIG. 6 , but in a rear view
  • FIG. 8 is an illustration as in FIG. 5 , but with the impeller illustrated in FIGS. 6 and 7 ,
  • FIG. 9 is a sectional illustration through FIG. 5 in the region of the hook and clip elements in the case of a detent connection not yet having been made,
  • FIG. 10 is a sectional illustration as in FIG. 9 , but with a detent connection having been made.
  • a delivery device 1 which may for example be in the form of a fan in a motor vehicle, has a drive 3 , which drive has a rotor 2 , and an impeller 5 , which impeller is connected rotationally conjointly to a rotor hub 4 of the rotor 2 .
  • the impeller 5 is coupled, that is to say connected, by way of detent connections 6 to the rotor 2 or to the rotor hub 4 thereof.
  • the detent connections 6 may be configured differently, specifically firstly as per the embodiments illustrated in FIGS. 1 and 2 and secondly as per the embodiments illustrated in FIGS. 3 to 8 .
  • the rotor hub 4 is of pot-shaped form and, on the impeller 5 , there are arranged at least three detent hooks 8 which project in an axial direction 7 and which, when the impeller 5 is in an installed state, engage behind an edge 9 of the rotor hub 4 .
  • relatively simple installation of the impeller 5 on the rotor hub 4 of the rotor 2 of the delivery device 1 is possible by way of simple axial mounting of the impeller 5 onto the rotor hub 4 .
  • hitherto required separate fastening elements, such as for example screws can be omitted, whereby not only is the mounting process simplified but also the variety of parts, and in association therewith the storage and logistics costs, can be reduced.
  • spring elements 10 which brace the impeller 5 against the rotor hub 4 .
  • the spring elements 10 are in this case supported on a shell surface of the rotor hub 4 .
  • the spring elements 10 have a shorter spring travel than the snap-action hooks 8 .
  • the spring elements 10 may self-evidently also have an insertion bevel which facilitates the installation.
  • the impeller 5 and the detent hooks 8 are in the form of a unipartite plastics injection-moulded part.
  • the spring elements 10 are formed in one piece with the impeller 5 , wherein the embodiment of the spring elements 10 illustrated in FIG. 2 constitutes merely one possible embodiment, such that spring elements 10 of said type may also be formed in some other way.
  • the detent hooks 8 are in this case structurally preloaded in a radially inward direction and thereby reliably hold the impeller 5 fixed on the wheel hub 4 when the detent connections 6 have been made.
  • the axial length of the individual detent hooks 8 is in this case dimensioned such that the detent connections 6 can be made, that is to say the detent hooks 8 engage behind the edge 9 of the wheel hub 4 , only if the impeller 5 has been pushed on in the correct position.
  • impeller 5 there may also be arranged pins 11 which are formed in one piece with said impeller and which engage into associated recesses 12 on the wheel hub 4 and thereby connect the impeller 5 rotationally conjointly to the wheel hub 4 .
  • corresponding recesses it would self-evidently also be possible for corresponding recesses to be provided on the edge 9 in the region of the respective detent hooks 8 .
  • the rotor hub 4 is of pot-shaped form and has at least three first openings 13 and at least three second openings 14 .
  • At least three hook elements 15 and at least three clip elements 16 are arranged on the impeller 5 , wherein the at least three hook elements 15 engage behind an edge 17 (cf. FIGS. 5 and 8-10 ) of an associated first opening 13 in the installed state, whereas the at least three clip elements 16 engage into the associated second openings 14 and thereby fix the impeller 5 rotationally conjointly to the rotor hub 4 .
  • the clip elements 16 may in this case be in the form of individual spring tongues, as illustrated in FIGS. 3 and 5, 9 and 10 , or dual spring tongues, as illustrated in FIGS. 6 to 8 .
  • the at least three hook elements 15 are oriented in a circumferential direction, wherein the at least three clip elements 16 in the form of single spring tongues are oriented oppositely with respect thereto (cf. FIG. 5 ).
  • This offers the major advantage that installation of the impeller 5 on the wheel hub 4 is possible relatively easily by virtue of the impeller 5 firstly being mounted onto the wheel hub 4 in an axial direction (cf. FIG. 9 ) and subsequently being rotated relative to said wheel hub until the hook elements 15 engage behind the edge 17 of the respectively associated first opening 13 (cf. FIG. 10 ).
  • the clip elements 16 engage into the associated second openings 14 and, in so doing, owing to their orientation opposite to the hook elements 15 , generate a rotationally fixed connection between the impeller 5 , on the one hand, and the wheel hub 4 , on the other hand. In the same way, this is also effected by way of the clip elements 16 with two spring tongues (cf. FIGS. 6 to 8 ), the orientation of which is however directed not in the circumferential direction but in the radial direction.
  • the impeller 5 and at least the hook elements 15 are in the form of a unipartite plastics injection-moulded part, whereby it is possible for the impeller 5 to be manufactured inexpensively and at the same time with high quality.
  • the rotor hub 4 it is additionally also possible for the rotor hub 4 to be in the form of a plastics injection-moulded part.
  • the hook elements 15 or clip elements 16 arranged on the impeller 5 could self-evidently also be arranged on the wheel hub 4 in a reversed manner, wherein, in this case, the associated first and second openings 13 , 14 would then be arranged on the impeller 5 .
  • screw engagement openings 18 are provided in the impeller 5 , which screw engagement openings are, in the installed state, aligned with an internal thread 19 arranged on the wheel hub 4 and which screw engagement openings permit an additional fixing of the impeller 5 to the wheel hub 4 by way of separate fastening means, for example screws.
  • the delivery device 1 With the delivery device 1 according to the invention, it is possible in particular for installation time and thus also installation costs to be reduced, because, in particular, the screwing process hitherto required can be omitted. Furthermore, with the detent connections 6 according to the invention it is possible to realize a simultaneously easily connectable and easily releasable fixing of the impeller 5 to the wheel hub 4 , wherein the manufacturing process that has hitherto been performed exclusively manually is now even automatable.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
US15/346,368 2015-11-09 2016-11-08 Delivery device Abandoned US20170130724A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102015222005.2A DE102015222005A1 (de) 2015-11-09 2015-11-09 Fördereinrichtung
DE102015222005.2 2015-11-09

Publications (1)

Publication Number Publication Date
US20170130724A1 true US20170130724A1 (en) 2017-05-11

Family

ID=57281094

Family Applications (1)

Application Number Title Priority Date Filing Date
US15/346,368 Abandoned US20170130724A1 (en) 2015-11-09 2016-11-08 Delivery device

Country Status (4)

Country Link
US (1) US20170130724A1 (de)
EP (1) EP3165773A1 (de)
JP (1) JP2017089647A (de)
DE (1) DE102015222005A1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190107117A1 (en) * 2017-10-10 2019-04-11 Eric Rafalko Hub for a fluid-flow control system
US20190186495A1 (en) * 2016-06-24 2019-06-20 Nidec Servo Corporation Blower
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
US10935032B2 (en) 2017-08-31 2021-03-02 Ebm-Papst Mulfingen Gmbh & Co. Kg Mounting system between a ring member and a rotor
CN112555191A (zh) * 2019-09-26 2021-03-26 日本电产株式会社 送风装置
US11767761B2 (en) 2018-08-02 2023-09-26 Horton, Inc. Low solidity vehicle cooling fan

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1004559A (en) * 1963-11-27 1965-09-15 Black & Decker Mfg Co Fan assembly and method of fabrication
US5117656A (en) 1990-04-23 1992-06-02 General Electric Company Outdoor unit for a central system for conditioning air, assembly for use with a housing of such unit, and method of assembling a blower motor to a cover for such unit
DE102004046893A1 (de) * 2004-09-28 2006-03-30 Robert Bosch Gmbh Vorrichtung und Verfahren zum Befestigen eines Flügelrades auf einer Welle
DE102005019242A1 (de) * 2005-04-26 2006-11-09 Asia Vital Component Co., Ltd., Hsin Chuan Rotor
DE102009003142A1 (de) * 2009-05-15 2010-11-18 Robert Bosch Gmbh Lüfter-Rotor-Verbindung für ein Kühlgebläse eines Kraftfahrzeugs
FR2988337B1 (fr) * 2012-03-22 2015-05-08 Valeo Systemes Thermiques Systeme de ventilation
EP2971789B1 (de) * 2013-03-11 2017-11-01 Fresh AB Axiallüfter mit einem abnehmbar befestigten lüfterrad

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190186495A1 (en) * 2016-06-24 2019-06-20 Nidec Servo Corporation Blower
US10935032B2 (en) 2017-08-31 2021-03-02 Ebm-Papst Mulfingen Gmbh & Co. Kg Mounting system between a ring member and a rotor
USD860427S1 (en) 2017-09-18 2019-09-17 Horton, Inc. Ring fan
US20190107117A1 (en) * 2017-10-10 2019-04-11 Eric Rafalko Hub for a fluid-flow control system
US10670042B2 (en) * 2017-10-10 2020-06-02 Deere & Company Hub for a fluid-flow control system
US11767761B2 (en) 2018-08-02 2023-09-26 Horton, Inc. Low solidity vehicle cooling fan
CN112555191A (zh) * 2019-09-26 2021-03-26 日本电产株式会社 送风装置
US11242862B2 (en) 2019-09-26 2022-02-08 Nidec Corporation Blower device

Also Published As

Publication number Publication date
EP3165773A1 (de) 2017-05-10
DE102015222005A1 (de) 2017-05-11
JP2017089647A (ja) 2017-05-25

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