EP3874170A1 - Lüftergehäuse mit integrierter motorelektronik - Google Patents
Lüftergehäuse mit integrierter motorelektronikInfo
- Publication number
- EP3874170A1 EP3874170A1 EP20714198.7A EP20714198A EP3874170A1 EP 3874170 A1 EP3874170 A1 EP 3874170A1 EP 20714198 A EP20714198 A EP 20714198A EP 3874170 A1 EP3874170 A1 EP 3874170A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- motor
- fan
- circuit board
- fan housing
- 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
Links
- 238000004382 potting Methods 0.000 claims description 8
- 150000001875 compounds Chemical class 0.000 claims description 5
- TVTJUIAKQFIXCE-HUKYDQBMSA-N 2-amino-9-[(2R,3S,4S,5R)-4-fluoro-3-hydroxy-5-(hydroxymethyl)oxolan-2-yl]-7-prop-2-ynyl-1H-purine-6,8-dione Chemical compound NC=1NC(C=2N(C(N(C=2N=1)[C@@H]1O[C@@H]([C@H]([C@H]1O)F)CO)=O)CC#C)=O TVTJUIAKQFIXCE-HUKYDQBMSA-N 0.000 description 3
- 229940125851 compound 27 Drugs 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000007704 transition Effects 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
- 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
- F04D25/06—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
- F04D25/0633—Details of the magnetic circuit
-
- 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
- F04D25/068—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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/056—Bearings
- F04D29/059—Roller 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps especially adapted for elastic fluid 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
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially adapted for elastic fluid pumps
- F04D29/545—Ducts
Definitions
- the invention relates to a fan housing with integrated motor electronics.
- a motor with integrated motor control electronics is usually used.
- the engine control electronics are regularly included in a specifically designed electronics housing that connects directly to the engine structure.
- the electronics housing In the case of a direct connection between the motor and the motor control electronics, the electronics housing is designed to be sealed, since it is arranged within the medium conveyed by the fan. The ability to cool the engine control electronics is therefore severely restricted.
- a structure of the motor with it in an electronics housing is connected and received motor control electronics to an increased axial space requirement within the fan housing.
- the manufacturability of a stator that is favorable for this use with plastic, for example molded or encapsulated, is limited to small sizes with a relatively small diameter, which limits the size of the circuit board for the electronics and the foreseeable number of electronic components.
- a fan representing the state of the art is known.
- DE 20 2015 103 889 U1 discloses a fan and a motor accommodated therein with a stator and a rotor which is connected to a fan wheel, the fan housing being formed from at least one upper housing part and one lower housing part and the motor electronics in one of the housing parts is integrated.
- the housing accommodates the motor electronics, with a central opening for the bearing tube being provided in the area of the housing receptacle, which restricts the circuit board layout and, in particular, is not optimized with regard to EMC requirements.
- the installation space the number of parts, the electronics cooling concept, the EMC design of the circuit board, the assembly and / or the connection and connection options.
- the invention is therefore based on the object of optimizing the aforementioned features cumulatively and of providing a fan which has a smaller axial space requirement for the integration of the motor and motor electronics in the fan housing and can be manufactured inexpensively.
- a basic idea of the present invention relates to the specific design of a one-piece fan housing with an integrated receiving space for the engine electronics or the circuit board of the engine electronics.
- Fan housing has a substantially cylindrical housing wall extending in the axial direction with a first and a second end face, a motor flange for receiving a motor being formed in the axial center, the motor flange forming a hollow cylindrical bearing tube open on one side for supporting the rotor shaft of a rotor and wherein the bearing tube in the area of the motor flange is closed at its one end of the bearing tube and the motor flange forms a receiving space for receiving the motor electronics, which is fully constantly inside the cylindrical housing wall between the bearing tube end and the first end face (or the plane through which the first end face is spanned) is arranged.
- the motor flange forms a ring section and several connecting ribs each extending in the radial direction connect the ring section in one piece to the housing wall.
- the bearing tube is connected in one piece to the ring section via a plurality of connecting ribs which extend in the radial direction.
- the ribs are preferably arranged in a star shape.
- the connection ribs and / or the connection ribs with the ring section span a common area or are arranged in a common area viewed in the axial direction. Between this level and the level that is spanned by the first Stirnsei te, the receiving space for the engine electronics is provided with advantage.
- the housing wall forms a circumferential collar on its first end face, which has at least four sections, each with a straight edge, with two of the four sections diametrically opposite the center and running parallel to one another. In this way, an essentially rectangular or square envelope contour is obtained.
- cylindrical fastening sleeves are formed on the housing wall, each of which is integrally connected to the housing wall via a web section extending in the radial direction and arranged in the four corner positions of an imaginary square or rectangle.
- Another aspect of the present invention relates to a fan with a fan housing as described above, wherein the motor flange forms a Deckelauf receiving contour for receiving a motor flange cover and a motor electronics comprising a circuit board is integrated in the receiving space and the receiving space by a preferably removable, in the cover receptacle The contour of the motor flange cover is closed.
- engine electronics comprising a printed circuit board are integrated in the receiving space and the receiving space is filled with a potting compound which preferably encloses the circuit board on all sides. In this way, a particularly tight solution that is protected against environmental influences is obtained.
- circuit board is formed without a central opening (as known in the prior art) in the region of the bearing tube. This is possible due to the concept of the present invention.
- a z. B. fully selected the recording space utilizing board size.
- a motor comprising a stator with stator coils and a rotor are arranged in the fan housing on the motor flange, the rotor being mounted on a rotor shaft inserted in the bearing tube and connection connections of the stator coils being provided in such a way that that these coming from the coils (thus on the stator side) to the Lei terplatte and from there run at least in sections through the circuit board and protrude from this at least in sections on the opposite side of the circuit board.
- circuit board contacts are provided on the side of the circuit board facing away from the stator. It is also advantageous if the connection connections, at least with their section that runs within the receiving space, run completely within the potting compound.
- FIG. 2 shows a plan view of the fan according to FIG. 1 in the assembled state; 3 shows a perspective view of the fan according to FIG. 2 without the
- FIG. 4 shows a perspective view of the fan according to FIG. 2 from a rear perspective without potting compound
- FIG. 5 shows a sectional view through the fan from FIG. 2.
- Figure 1 shows a perspective view of various assembly parts of a ventila sector (securing elements 40, 44, spring 41, ball bearing 42, spacer sleeve 43) in a non-assembled state.
- a fan housing 1 of an axial fan can be seen.
- the fan housing 1 is designed to accommodate a motor 2 comprising a stator 2a with stator coils W and a rotor 2b.
- the fan housing 1 has a substantially cylindrical housing wall 10 extending in the axial direction A. This has a first end face S1 and a second end face S2. In the axial center of the fan housing 1 there is a motor flange 11.
- the motor flange 11 is designed on the one hand to accommodate the stator 2a and the rotor 2b, the motor flange 11 for this purpose being a hollow cylindrical bearing tube 12 open on one side for mounting a rotor shaft 14 (as in FIG Figure 5 shown in the sectional view).
- the bearing tube 12 is closed in the region of the motor flange 11 at its lower bearing tube end 12u.
- the motor flange 11 has a receiving space 15 for receiving the motor electronics 3.
- the receiving space 15 is completely inside the cylindrical housing wall 10 between the bearing tube end 12 (at the transition from the closed end 12u of the bearing tube) and the first end face S1 arranged.
- the engine electronics 3 is arranged on a circuit board which is located below the closed end 12u of the Bearing tube 12 is located in the receiving space 15.
- a potting compound 27 is introduced into the receiving space 15 so that the circuit board is completely protected against environmental influences and is integrated into the fan housing 1 to save space.
- the motor flange 11 forms a ring section 20 and a plurality of connecting ribs 17, each extending in the radial direction R, which connect the ring section 20 in one piece with the housing wall 10.
- the connecting ribs 17 run in a star shape from the outer wall of the ring section 20 to the inner wall of the housing wall 10.
- the connecting ribs 17 span a common area E1 with the ring section 20.
- bearing tube 12 is connected in one piece with the ring section 20 via a plurality of connecting ribs 18 extending in the radial direction R. Below the connecting ribs is
- connection connections 28 are also shown
- Stator coils W are provided which run on the stator side towards the printed circuit board 3a and from there run at least in sections through the printed circuit board 3a and protrude on the opposite side of the printed circuit board 3a with their end portion.
- the circuit board contact is made here on the side of the circuit board 3a facing away from the stator 2a, for which purpose the connection connections 28 at least with their connection section and contact section run completely within the potting compound 27 within the receiving space 15.
- the housing wall 10 has on its first end face S1 a circumferential collar 22 which has the four sections 22a, 22b, 22c, 22d each with a straight edge course.
- the straight edge sections 22a, 22b, 22c, 22d are each connected to one another via curved sections, two of the four sections 22a, 22c, or 22b, 22d being diametrically opposed to the center and running parallel to one another.
- the fastening sleeves 30 run essentially in the axial direction over the entire height of the fan housing 1 and are located at the four corner positions of an imaginary square, thus in or immediately next to the intersection of the respective tangents along the edge sections 22a, 22b, 22c, 22d.
- the motor flange 11 also has a cover receiving contour 29 for receiving a motor flange cover, not shown in detail, which closes or covers the circuit board 3a towards the outside.
- the motor flange cover can be used as an alternative to the potting compound 27 or in addition.
- a cable duct 37 with a connecting cable 38 is also provided, the cable duct being integrated or arranged in or on a connecting strut 17.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102019107706.0A DE102019107706A1 (de) | 2019-03-26 | 2019-03-26 | Lüftergehäuse mit integrierter Motorelektronik |
PCT/EP2020/058306 WO2020193607A1 (de) | 2019-03-26 | 2020-03-25 | Lüftergehäuse mit integrierter motorelektronik |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3874170A1 true EP3874170A1 (de) | 2021-09-08 |
EP3874170B1 EP3874170B1 (de) | 2023-10-25 |
Family
ID=68722115
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20714198.7A Active EP3874170B1 (de) | 2019-03-26 | 2020-03-25 | Ventilatorgehäuse mit integrierter motorelektronik und ventilator mit einem entsprechenden ventilatorgehäuse |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3874170B1 (de) |
CN (2) | CN209748306U (de) |
DE (1) | DE102019107706A1 (de) |
WO (1) | WO2020193607A1 (de) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102019107706A1 (de) * | 2019-03-26 | 2020-10-01 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Lüftergehäuse mit integrierter Motorelektronik |
FR3105314A1 (fr) * | 2019-12-19 | 2021-06-25 | Valeo Systemes Thermiques | Système de ventilation d’un véhicule automobile. |
Family Cites Families (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5997267A (en) * | 1997-03-12 | 1999-12-07 | Lee; Richard | Non-electromagnetic interference generating cooling fan |
JP3482373B2 (ja) * | 2000-04-28 | 2003-12-22 | ミネベア株式会社 | 送風機 |
JP2005020802A (ja) * | 2003-06-23 | 2005-01-20 | Matsushita Electric Ind Co Ltd | ファンモータおよびそのファンモータを用いた送風ファン |
JP4397832B2 (ja) * | 2005-02-07 | 2010-01-13 | 山洋電気株式会社 | 軸流送風機 |
CN1900536B (zh) * | 2005-07-18 | 2010-08-11 | 台达电子工业股份有限公司 | 风扇及其扇框 |
CN102474153B (zh) * | 2009-07-18 | 2014-06-11 | 依必安-派特圣乔根有限责任两合公司 | 具有电子换向驱动马达的风扇 |
CA2792988A1 (en) * | 2010-03-15 | 2011-09-22 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Fan |
DE102010012392A1 (de) * | 2010-03-22 | 2011-09-22 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ventilator |
US8540494B2 (en) * | 2010-04-15 | 2013-09-24 | Adda Corporation | Fan structure and stator module therefor |
US8814501B2 (en) * | 2010-08-06 | 2014-08-26 | Minebea Co., Ltd. (Minebea) | Fan with area expansion between rotor and stator blades |
JP2013127219A (ja) * | 2011-12-19 | 2013-06-27 | Nippon Densan Corp | ファン |
DE102012106605A1 (de) * | 2012-07-20 | 2014-01-23 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Elektronikgehäuse für einen Elektromotor mit Berührungsschutz |
DE202014100266U1 (de) * | 2014-01-22 | 2015-04-24 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Lüfter mit Lüftergehäuse |
DE202015103889U1 (de) * | 2015-07-24 | 2015-08-05 | Ebm-Papst Mulfingen Gmbh & Co. Kg | Ventilator mit Außenelektronik |
US10021775B1 (en) * | 2017-06-19 | 2018-07-10 | Asia Vital Components Co., Ltd. | Circuit board and fan frame connection structure |
DE102019107706A1 (de) * | 2019-03-26 | 2020-10-01 | Ebm-Papst St. Georgen Gmbh & Co. Kg | Lüftergehäuse mit integrierter Motorelektronik |
-
2019
- 2019-03-26 DE DE102019107706.0A patent/DE102019107706A1/de active Pending
- 2019-04-28 CN CN201920596223.7U patent/CN209748306U/zh active Active
-
2020
- 2020-03-25 EP EP20714198.7A patent/EP3874170B1/de active Active
- 2020-03-25 WO PCT/EP2020/058306 patent/WO2020193607A1/de unknown
- 2020-03-25 CN CN202080008687.7A patent/CN113272559A/zh active Pending
Also Published As
Publication number | Publication date |
---|---|
EP3874170B1 (de) | 2023-10-25 |
CN209748306U (zh) | 2019-12-06 |
WO2020193607A1 (de) | 2020-10-01 |
DE102019107706A1 (de) | 2020-10-01 |
CN113272559A (zh) | 2021-08-17 |
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