WO2011154097A1 - Sensorlüfter mit integration des luft führenden gehäuses in den magnetischen rückschlussbereich des motorstators - Google Patents
Sensorlüfter mit integration des luft führenden gehäuses in den magnetischen rückschlussbereich des motorstators Download PDFInfo
- Publication number
- WO2011154097A1 WO2011154097A1 PCT/EP2011/002581 EP2011002581W WO2011154097A1 WO 2011154097 A1 WO2011154097 A1 WO 2011154097A1 EP 2011002581 W EP2011002581 W EP 2011002581W WO 2011154097 A1 WO2011154097 A1 WO 2011154097A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- air
- fan
- sensor
- stator
- rotor
- 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.)
- Ceased
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
- 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
-
- 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
- F04D25/0666—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump a sensor is integrated into the pump/motor design
-
- 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K21/00—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets
- H02K21/12—Synchronous motors having permanent magnets; Synchronous generators having permanent magnets with stationary armatures and rotating magnets
-
- 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 invention relates to a sensor fan with a sensor for detecting a property of a gas flowing through the sensor fan during operation, in particular air.
- Such sensor fans are very small and have about the dimensions of a
- oversized thimble serve z.
- detecting the air temperature, humidity, the radioactivity of the air or other gases and they have a fan, and an electric motor for driving this fan.
- this object is achieved by the subject matter of claim 1.
- the magnetic yoke for the stator of the electric motor is simultaneously formed as an air guide member for the fan, results in a compact design, wherein the sensor can be arranged so that no undesirable thermal influence of the sensor by the electric motor occurs and thus one receives very accurate measurement, the z. B. in an air conditioner allows a very constant temperature control even under extreme environmental conditions as z. B. on the one hand in the Sahara desert, on the other hand in winter in Siberia or Lapland can occur.
- Fig. 1 is a longitudinal section, taken along the line II of Fig. 2; it shows the base plate 34 of a sensor fan, on which a radial fan 20 is rotatably mounted; on the underside of the fan 20, a rotor magnet 40 is fixed in the 2K process,
- Fig. 2 is a plan view of the base plate 34, viewed in the direction of arrow II of FIG.
- Fig. 3 is a longitudinal section similar to FIG. 1, in which also the stator with the
- FIG. 4 is a three-dimensional view analogous to FIG. 3,
- Fig. 5 is a schematic representation of the annular rotor magnet with a
- Magnetization in the form of a Halbach array, in which on the outer circumference of a strong magnetic field and on the inner circumference only a very weak
- Fig. 6 is an exemplary illustration of the circuit of the stator coils in the form of a
- Fig. 7 is an exemplary view of another type of circuit of the stator coils, wherein two stator coils are used to start the motor and four coils together form the motor winding for driving the rotor.
- Fig. 1 shows an assembly of a sensor fan 18, namely its radial impeller 20.
- This has fan blades 22 which are fixed to a conical air guide 24 and from this, based on Fig. 1 and 3, projecting upwards.
- the air guide body 24 has an extension at the top 26, in which a shaft 28 is secured by injection molding.
- the fan 20 sucks air in the direction of arrows 21 so in the axial direction and transports them in the direction of arrows 23 to the outside.
- the fan 20 is preferably made of a polyamide with glass fiber reinforcement by
- Injection molded Its shaft 28 is mounted in a bearing 30, which is exemplary here is shown as a sliding bearing and in the projection 32 of a base plate 34 (plastic) is attached.
- a bearing 30 which is exemplary here is shown as a sliding bearing and in the projection 32 of a base plate 34 (plastic) is attached.
- the air guide body 24 has an annular at its in Fig. 1 and 3 lower end
- a magnetic ring 40 is molded on the underside 38 in the 2K process.
- This has a polyamide matrix in which hard ferromagnetic particles are located, for. B. from neodymium, and at the interface 38 merges the polyamide matrix of the
- stator pole elements 50, 52, 54, 56, 58, 60 are provided, which are also recesses have, which are designated 48 and are aligned with the recesses 46, see. Fig. 1.
- the stator pole elements have pole pieces (stator pole shoes) 50A, 52A,... 60A, often referred to as "hammers".
- a magnetically active air gap 50B, 52B, ... 60B from the outer periphery 61 ( Figure 2) of the permanent magnet rotor magnet 40.
- These air gaps can either - as shown - have a constant size, z. B. 0.2 mm, or they can, for. B. to generate a reluctance, be variable.
- a pole gap 62 of the rotor magnet 40 at the position largest air gap Fig. 2 shows schematically such a pole gap 62, which is therefore generally no mechanical gap, but only a familiar to the electrical engineer, mental construct.
- each of the recesses 46, 48 associated with a pole core (Statorpolkern) 66, the z. B. may have a dimension of 2 x 2 mm. On him is one
- Embodiment a stator having six pole cores 66 and six stator windings 68.
- the in Fig. 3 upper ends of the pole cores 66 are secured in recesses 70 of the horizontal portion 72 of an air guide member 74, z. B. by riveting, welding or gluing.
- At least the horizontal portion 72 serves as a magnetic inference of the illustrated brushless drive motor and is therefore made of a ferromagnetic or soft ferromagnetic material produced, for. B. by deep drawing.
- the part 72 may be referred to as a magnetic return region 72.
- the upper end of the air guide member 74 in Fig. 3 and Fig. 4 terminates in the circuit board 75, which is e.g. is fastened by means of support posts 76 on the air guide member 74.
- the circuit board 75 has in its center an opening (air inlet) 78, through which the air flows in the direction of the arrows 21 during operation.
- a sensor or sensor element 80 of any type is attached, e.g. by means of his
- Lead wires 82 which are connected to the circuit board 75, or by means of a special, not shown support member which projects into the opening 78 and on which the sensor 80 is fixed.
- the sensor 80 serves e.g. to capture at least one
- recesses 84 are provided at the outer ends of the wings 22, the shape of which is adapted to the shape of the air guide member 74.
- Fig. 4 shows the sensor fan 18 in three-dimensional representation.
- the magnetic flux passes e.g. from one pole of the rotor magnet 40 through a stator pole element, e.g. the element 50, further through the associated pole core 66 to the magnetic yoke 72, through this e.g. to the pole core of the stator pole 52, and through this back to the rotor magnet 40.
- the windings 68 generate the current load on the
- This design makes it possible to produce a very compact shape even with an internal rotor motor.
- Fig. 2 shows a radial magnetization of the rotor magnet 40.
- one in the injection molding process (molding) in the mold a ring 88 of a soft ferromagnetic material on the radial inner side of the magnet ring 40 inserts.
- the magnetic ring 40 can already be pre-magnetized in the injection mold in order to achieve an alignment of the magnetic particles, which are schematically indicated in FIG. 2 at 90. This alignment is then maintained after solidification of the polyamide matrix and, if necessary, further magnetization in the cooled state is possible to obtain a desired shape of the induced voltage.
- Halbach magnetization can be used as shown in FIG. In this case, one does not need a return ring 88 (FIG. 2), and one obtains on the radial
- the magnetization which is partly already in the injection mold, one obtains sections 94, in which the magnetic flux 96 extends mainly radially from outside to inside, and one obtains sections 98, in which the magnetic flux 100 extends mainly radially from inside to outside. From the sections 98, the magnetic fluxes 102, 104 extend approximately in the circumferential direction to the sections 94.
- the magnetic particles 90 (FIG. 2) are correspondingly mechanically aligned by the magnetization within the injection mold, so that a corresponding magnetic field 106 is formed on the outside of the magnetic ring 40 results, as indicated schematically in Fig. 5. Due to the nature of the magnetization, the shape of this magnetic field 106 can be influenced in a known manner.
- Fig. 6 shows how the coils 68 are switched to obtain a delta connection for a three-phase motor.
- Fig. 7 shows the circuit of the coils 68 for a so-called single-phase motor.
- Two of the six coils, namely those with pole elements 52 and 58, are in series switched and serve as start-up windings. Of these may possibly be omitted, so that the engine has only five coils 68 in this case.
- the four coils with the pole elements 56, 54, 50 and 60 are also connected in series and serve as motor coils. These are distributed symmetrically on the circumference and thereby generate symmetrical forces on the magnetic ring 40, so that there is a smooth running of the sensor fan.
- FIGS. 1 to 7 thus show a sensor fan 18, which has a brushless drive motor 40, 50, 52, 54, 56, 58, 60, 66, 68 with a stator 50, 52, 54, 56, 58 , 60, 66, 68 and a permanent magnet rotor 40; a fan wheel 20 in drive connection with this rotor 40; one
- Air inlet 78 through which the air flows into the sensor fan 18 during operation and to which at least one sensor element 80 for detecting at least one property of the air transported by the sensor fan 18 is mountable; a provided in the air inlet 78 air guide member 74, which in operation from the
- Air inlet 78 incoming air to the impeller 20 passes and which at least in a magnetically active return region 72 of the drive motor from a
- Stator pole pieces 50, 52, 54, 58, 60 each separated from the rotor 40 by a magnetically active air gap 50B, 52B, 64B, 56B, 58B, 60B;
- Statorpolkerne 66 which each extend from a Statorpolschuh 50, 52, 54, 56, 58, 60 to the magnetically active return region 72 of the air guide member 74; and stator windings 68 which are arranged on the stator pole cores 66 and separated from each other by radial passages 81 in the circumferential direction, through which passages 81 in operation the air conveyed by the fan 20 can flow.
- the fan wheel 20 preferably has at least one region 24, 36 which is formed from a thermoplastic plastic, which region 24, 36 is connected in a 2K process to the rotor magnet 40, which as a part consists of a thermoplastic material with embedded ferromagnetic particles 90 is formed, wherein the ferromagnetic particles 90 are preferably at least partially made of neodymium.
- the rotor magnet 40 is magnetized in the manner of a Halbach array (FIG. 5), and the rotor magnet 40 is preferably formed as part of an inner rotor whose Outer periphery 61 forms one of the boundaries of the magnetically active air gap 50B, 52B, 54B, 56B, 58B, 60B.
- the rotor magnet 40 is provided on its side 92 remote from the magnetically active air gap 50B, 52B, 54B, 56B, 58B, 60B with a magnetic yoke 88 and magnetized in the radial direction (FIG. 2).
- a base member 34 is provided of a non-metallic material, on which a bearing 30 is provided for rotatably supporting the fan wheel 20, wherein preferably the Statorpol note 50, 52, 54, 56, 58, 60 are mounted on the base member 34, and preferably the pole cores 66 are fixed on the base part 34.
- the fan 20 is designed as a radial fan.
- the stator has six stator poles in the embodiment, but it may be e.g. also have two, four or eight poles.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
Abstract
Description
Claims
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE112011101937T DE112011101937A5 (de) | 2010-06-10 | 2011-05-25 | Sensorlüfter mit Integration des Luft führenden Gehäuses in den magnetischen Rückschlussbereich des Motorstators |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE202010007720.6 | 2010-06-10 | ||
| DE202010007720 | 2010-06-10 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2011154097A1 true WO2011154097A1 (de) | 2011-12-15 |
Family
ID=44475079
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP2011/002581 Ceased WO2011154097A1 (de) | 2010-06-10 | 2011-05-25 | Sensorlüfter mit integration des luft führenden gehäuses in den magnetischen rückschlussbereich des motorstators |
Country Status (2)
| Country | Link |
|---|---|
| DE (2) | DE202011100798U1 (de) |
| WO (1) | WO2011154097A1 (de) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078172A (zh) * | 2015-08-13 | 2015-11-25 | 贵州大学 | 一种新型自动穿卸的鞋套机 |
| CN108425865A (zh) * | 2017-02-14 | 2018-08-21 | 台达电子工业股份有限公司 | 薄型风扇及薄型马达 |
| CN114109912A (zh) * | 2020-09-01 | 2022-03-01 | 合肥美的电冰箱有限公司 | 进风装置及制冷设备 |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012003698A1 (de) * | 2012-02-28 | 2013-08-29 | BROSE SCHLIEßSYSTEME GMBH & CO. KG | Kraftfahrzeugschloss |
| IT201700018552A1 (it) * | 2017-02-20 | 2018-08-20 | Elica Spa | Convogliatore radiale per cappe aspiranti |
| CN113310150A (zh) * | 2021-06-09 | 2021-08-27 | 干鸿飞 | 一种现代化建筑智能家居环境监控装置 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1492785A (fr) * | 1965-06-09 | 1967-08-25 | Groupe turbo-alternateur ou motopompe ou motoventilateur ou motocompresseur pour liquides ou gaz | |
| DE2216173A1 (de) * | 1972-04-04 | 1973-10-11 | Papst Motoren Kg | Klein-luefter |
| US4459087A (en) * | 1982-06-02 | 1984-07-10 | Aciers Et Outillage Peugeot | Fan unit for an internal combustion engine of automobile vehicle |
| DE4418000A1 (de) * | 1994-05-21 | 1995-11-23 | Licentia Gmbh | Elektronisch gesteuerter Elektromotor, insbesondere mit einem Lüfterrad zum Ansaugen von Kühlluft für Kraftfahrzeuge |
| EP1310677A2 (de) * | 2001-11-08 | 2003-05-14 | BorgWarner Inc. | Turbolader |
-
2011
- 2011-05-17 DE DE201120100798 patent/DE202011100798U1/de not_active Expired - Lifetime
- 2011-05-25 DE DE112011101937T patent/DE112011101937A5/de not_active Withdrawn
- 2011-05-25 WO PCT/EP2011/002581 patent/WO2011154097A1/de not_active Ceased
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1492785A (fr) * | 1965-06-09 | 1967-08-25 | Groupe turbo-alternateur ou motopompe ou motoventilateur ou motocompresseur pour liquides ou gaz | |
| DE2216173A1 (de) * | 1972-04-04 | 1973-10-11 | Papst Motoren Kg | Klein-luefter |
| US4459087A (en) * | 1982-06-02 | 1984-07-10 | Aciers Et Outillage Peugeot | Fan unit for an internal combustion engine of automobile vehicle |
| DE4418000A1 (de) * | 1994-05-21 | 1995-11-23 | Licentia Gmbh | Elektronisch gesteuerter Elektromotor, insbesondere mit einem Lüfterrad zum Ansaugen von Kühlluft für Kraftfahrzeuge |
| EP1310677A2 (de) * | 2001-11-08 | 2003-05-14 | BorgWarner Inc. | Turbolader |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105078172A (zh) * | 2015-08-13 | 2015-11-25 | 贵州大学 | 一种新型自动穿卸的鞋套机 |
| CN108425865A (zh) * | 2017-02-14 | 2018-08-21 | 台达电子工业股份有限公司 | 薄型风扇及薄型马达 |
| CN114109912A (zh) * | 2020-09-01 | 2022-03-01 | 合肥美的电冰箱有限公司 | 进风装置及制冷设备 |
Also Published As
| Publication number | Publication date |
|---|---|
| DE112011101937A5 (de) | 2013-03-21 |
| DE202011100798U1 (de) | 2011-09-12 |
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