• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    The invention relates to a kinetic energy store (5) comprising a housing (13), a shaft (7) having a rotatably connected internal rotor (8) and a, in particular drum - shaped, outer rotor (11) supporting the inner rotor (8 ) at least partially surrounds and which is rotatably mounted relative to the shaft (7), wherein the inner (8) and / or outer rotor (11) has at least one electrical winding (9) shown. In order to achieve a particularly compact design and high stability and ease of maintenance, it is proposed that the outer rotor (11), which is mechanically rotatably mounted on both sides of the housing (13), be held mechanically bearing-free to the shaft (7).
    公开号:AT514240A1
    申请号:T50276/2013
    申请日:2013-04-22
    公开日:2014-11-15
    发明作者:Christian Bill；Helmut Ing Roland
    申请人:Hitzinger Gmbh；
    IPC主号:
    专利说明:

    -1 -
    The invention relates to an energy storage device for kinetic energy with a housing, with a shaft which aulweist a rotatably connected inner rotor aulweist, and with a, in particular drum-shaped outer rotor which surrounds the inner rotor at least partially and which is rotatably mounted relative to the shaft, wherein the interior - And / or outer rotor has at least one electrical winding.
    Kinetic energy accumulators (PE6Q2Q04002830T2) are known from the prior art and are used, for example, in UPS systems for speed-stabilizing a generator shaft. This energy storage device has a housing, a shaft, an inner rotor of an electrical machine rotatably mounted on the shaft of an electric machine and a drum-shaped outer rotor which is rotatably mounted on both sides of the shaft. The outer rotor is held at an increased relative to the inner rotor or the shaft speed. In the event of a power failure or fluctuations in the rotational speed of the shaft, the kinetic energy stored in the outer rotor is used for speed stabilization. In order to bring the outer rotor to speed, an electrical winding is provided on the inner rotor, which generates a closing magnetic flux over both rotors. In addition, this winding or an additional winding on the inner rotor for braking the outer rotor can be used to remove this kinetic energy. Although this embodiment of an energy storage can ensure compact construction conditions by a constructive nesting of inner and outer rotor, but requires a comparatively high design effort in the design of the mechanical support of the rotating parts. Such a design must namely meet the criteria of long operating life and possibly short life in energy storage. The latter also has a negative effect on the maintenance effort - known constructions can thus not achieve a high degree of protection in relation to the mechanical support of the rotating parts.
    The invention is therefore based on the object, starting from the beginning ge-geschilderteh prior art, an energy storage to the effect of constructive change that despite a compact design, a reduced design and maintenance costs. In addition, the energy storage to ensure high stability,
    The invention solves this problem by the fact that the housing on both sides mechanically rotatably mounted outer rotor is held mechanically bearing free to the shaft.
    If the outer rotor is rotatably mounted mechanically rotatably on both sides of the housing, it is possible to dispense with mounting of the outer rotor on rotating parts of the energy accumulator and thus keep the outer rotor mechanically bearing-free relative to the shaft. The storage of the outer rotor can thus be distinguished from the prior art with a fixed bearing part - for example in the form of a fixed raceway element or fixed inner or outer ring of a rolling bearing - distinguished. Thus, according to the invention, reduced structural requirements can be achieved at the bearing points of the outer rotor, whose mechanical bearings no longer have to remove any relative rotational speed between their outer parts. In addition, so that the speed of the cage of the bearings can be reduced - which, for example, subsequently the bearing can be operated in its standard application with a fixed bearing part. In particular, however, this circumstance can be used to ensure uninterrupted operation of the energy store. The fixed bearing part of the bearing of the outer rotor can namely a maintenance, in particular relubrication, even during operation of the energy storage, so that even with these mechanically relatively high-loaded bearings increased stability can be achieved. High operating times are thus safely ensured by the energy storage 3/16 -3. In addition, by the storage of the outer rotor on the housing, the easy accessibility to the bearings for measurement purposes can be used, so as to reduce the maintenance, for example.
    The energy storage can be simplified structurally by the outer rotor terminates in hollow shafts, through which the shaft protrudes mechanically free of bearings. In addition, this can facilitate the assembly of the energy storage, especially since these hollow shafts can also allow a structurally simple arrangement of a fixed-lot storage.
    Advantageously, these double-sided hollow shafts serve as a bearing point by the two hollow shafts are rotatably mounted on the housing via at least one rotor bearing, in particular roller bearings. In addition, a particularly mechanically loadable rotatable connection with the housing can thus be created.
    Compact construction conditions may result if the outer rotor is rotatably mounted on both side walls of the housing. In addition, the side walls of the housing can ensure a mechanically strong connection for receiving bearing forces.
    If, in addition, the shaft is mechanically rotatably mounted on the housing, a common bearing point can be made available for the independently rotatable parts of the energy accumulator, which can contribute to improved mutual support of the bearing of the shaft or inner rotor and outer rotor. The stability of the energy storage device can thus be increased according to the invention.
    The two-sided storage of the outer rotor can be insensitive to a bearing clearance on the shaft by the rotor bearings of the outer rotor are arranged between the shaft bearings of the shaft. Furthermore, in this way the assembly of the energy storage can be facilitated. 4/16 -4
    If at least one rotor bearing provided between the outer rotor and the housing, in particular roller bearings, is connected to a line which has lubricant, an active bearing lubrication can be achieved in order to extend the service life of the bearing of the outer rotor. The stability of the energy storage can be increased with it. In addition, it is not necessary to switch off the energy storage for maintenance purposes, which in turn can ensure high operating times.
    This active lubrication can for example be made possible by the line is part of a device for oil lubrication.
    Alternatively, the line in an opening, in particular in a nipple for grease lubrication, outside the housing ends, to make this active lubrication manually as needed.
    Simplifications in the construction for the rotary drive of the outer rotor may result from the fact that the energy collector has a segment motor and the housing of the energy store has an opening for the segment motor. This opening can namely open up an access to the outer rotor, which can be used to drive the outer rotor or to bring it to its predetermined speed. For this purpose, only the at least one electric winding having stator used in the opening of the housing and with the outer rotor to form a segment motor interaction. The inner rotor can therefore be relieved of its task of accelerating the outer rotor as a kinetic memory, which not only lead to a compact design on the inner rotor, but can also reduce the electrical design effort on the inner rotor. The inner rotor must thus carry only the electrical winding for magnetic coupling with the outer rotor to take kinetic energy from the outer rotor and transmitted to the shaft. It requires no further electrical measures on the inner rotor to its acceleration. In addition, by shifting these electrical parts from the inner rotor to the housing, the cooling can be improved, thus increasing its stability. Furthermore, a frequency converter can be easily connected to such a structurally easily accessible from the outside with respect to its electrical side segment motor. A speed control of the outer rotor, in particular taking into account load-dependent consumer situations, can thereby be realized comparatively easily. In addition, these simplified electrical design conditions can increase the stability of the energy storage.
    If the opening is arranged at the apex of the housing shell, the segment motor can also be used for mechanical relief of the bearing of the outer rotor. The stability of the energy storage can increase by this measure.
    Advantageously, the energy storage can be used in a device for uninterruptible power supply having an electric machine whose machine shaft is connected to the shaft of the energy store. Thus, for example, the speed of the machine shaft can be stabilized when the electric machine is in generator mode.
    If the device additionally has an internal combustion engine and a clutch which is provided between the electric machine and the internal combustion engine, the energy store can be used to stabilize the rotational speed of the engine shaft until the internal combustion engine is switched on. A particularly stable device or an uninterruptible power supply (DSV) can be ensured dam it.
    In the figures, the subject invention is exemplified by way of example with reference to an embodiment. Show it
    1 is a schematic side view of the device for uninterruptible power supply,
    2 is a torn-off side view of the energy storage of FIGS. 1 and 6/16 -6-
    3 is a sectional view according to III-III of FIG .. 2
    The apparatus 1 for uninterruptible power supply shown by way of example according to FIG. 1 has an internal combustion engine 2, an electromagnetic clutch 3, an electric machine 4 and an energy store 5 for kinetic energy. The energy storage device 5 serves to stabilize the rotational speed of the machine shaft 6 of the electric machine 4 and thereby to ensure that the electric machine 4 operating as a generator can provide the required electrical characteristic data without fluctuation in the event of an electrical power failure. Thus, an uninterruptible power supply can be ensured. In a power failure, the engine 2 is brought to a speed and switched on after reaching this speed via the clutch 3 in order to compensate for a longer time electrical power failure than would be possible by the energy stored by the energy storage 5 kinetic energy. The electromagnetic clutch 3 is flanged to one end of the machine shaft 6 of the electric machine 4.
    The energy storage device 5 is connected with its shaft 7 to the other end of the machine shaft 6 of the electric machine 4. Possibly, a non-illustrated elastic coupling between the energy storage 5 and the electric machine 4 may be provided for power transmission.
    As shown in FIG. 2 to remove the energy storage 5 in detail, this has an on the shaft 7 rotatably mounted inner rotor 8, which carries an electrical winding 9. This winding 9 generates in the inner rotor 8 a magnetic flux 10, which closes via the outer rotor 11 to form a magnetic circuit 12. The cup-shaped and formed as a solid body outer rotor 11 is ängeördnet to the inner rotor 8 and acts in the manner of a short-circuit cage, whereby a known electrical machines power connection between the two rotors 8, 11 is formed by coupling their magnetic fields. Since the outer rotor 11 is rotatably mounted relative to the shaft 7, it can also be brought to a speed which is higher than that of the shaft 7 in order to store kinetic energy. This also sets a relative speed between the inner rotor 8 and outer rotor 11.
    Despite this relative speed, a stable and cost-effective mounting of the outer rotor is achieved by the outer rotor 11 is rotatably supported on both sides of the housing 13 rotatably by means of rotor bearings 14, here rolling bearings. This can be dispensed with a mechanical bearing to the shaft or to the inner rotor 8, which allows storage of the outer rotor 11 with fixed bearing parts 15. Thus, even during operation of the energy storage 5 lubrication of the bearings 14 are made, which ensures a long service life and stability.
    The outer rotor 11 ends on both sides in hollow shafts 16. Through these hollow shafts 16, the shaft 7 protrudes mechanically bearing-free, which creates an encapsulation of the inner rotor 8 for its protection.
    In addition, these hollow shafts 16 provide sufficient space for the attack of the rotor bearings 14 and, rolling bearings, to form a fixed-lot storage of the outer rotor 11 in the housing 13. As can be seen in particular from FIG. 2, both hollow shafts 16 are thus mounted so as to be mechanically rotatable on the housing 13 via a respective rolling bearing.
    The bearing of the outer rotor 11 on the housing 13 engages on the side walls 17, which, taking into account the shaft bearing 18 or roller bearing, which likewise engages mechanically here, the shaft 7 creates a particularly advantageous mutual support of the rotatable parts of the energy accumulator 5.
    Between the two shaft bearings 18 of the shaft, the rotor bearings 14 of the outer rotor 11 are arranged. For this purpose, the housing 13 projects, each with a web 19 to the outer rotor. 8/16 -8-
    With a rotor bearing 14 of the outer rotor 11 and: its fixed bearing part 15, a lubricant-carrying line 20 is connected. Thus, the rotor bearing 14 or rolling bearing is actively lubricated, with the aid of a device 21 for oil lubrication or grease lubrication, For grease lubrication device 21 may also be formed as a nipple, not shown, on which a grease gun can be attached.
    In addition, it can be seen from FIG. 3 that the inner rotor 8 has the rotor shape of a salient-pole machine, which further reduces the design effort on the energy store 5. In general it is mentioned that for the inner rotor 8 any rotor shape is conceivable.
    The winding 9 on the inner rotor 8 is used as a brake winding.
    The outer rotor is brought by means of a segment motor 24 to speed, which forms between a stator 25 and the outer rotor 11. For this purpose, the housing 13 of the energy store 5 has an opening 26 into which the stator 25 is inserted with its electrical winding 27, which can be better taken from Fig. 3. The inner rotor 8 thus operates as a synchronous electric machine - the outer rotor 11 thus operates as an asynchronous machine.
    This opening 26 is also arranged at the apex of the housing shell 22 in order to relieve the rotor bearing 14 of the outer rotor 11. 9/16
    权利要求:
    Claims (13)
    [1]
    1 - (00261PAT) Patentansprüch e: 1. Energy storage for kinetic energy with a housing (13), with a shaft (7) having a Drehlest connected inner rotor (8), and with a, in particular drum-shaped, outer rotor (11) , which at least partially surrounds the inner rotor (8) and which is rotatably mounted relative to the shaft (7), wherein the inner (8) and / or outer rotor (11) has at least one electrical winding (9), characterized in that on the housing (13) on both sides mechanically rotatably mounted outer rotor (11) to the shaft (7) is held mechanically bearing free.
    [2]
    2. Energy storage according to claim 1, characterized in that the outer rotor (11) ends in hollow shafts (16) through which the shaft (7) protrudes mechanically bearing-free,
    [3]
    3. Energy storage according to claim 2, characterized in that the two hollow shafts (16) via at least one rotor bearing (14), in particular rolling bearings on the housing (13) are rotatably mounted.
    [4]
    4. Energy storage device according to claim 1, 2 or 3, characterized in that the outer rotor (11) is rotatably mounted on both side walls of the housing (13).
    [5]
    5. Energy storage device according to one of claims 1 to 4, characterized in that the shaft (7) on the housing (13) is mounted mechanically rotatable. 10/16 -2-
    [6]
    6. Energy storage according to claim 5, characterized in that the rotor bearings (14) of the outer rotor (11) between the shaft bearings (18) of the shaft (7) are arranged.
    [7]
    7. Energy storage according to one of claims 1 to 6, characterized in that at least one between outer rotor (11) and housing (13) provided rotor bearing (14), in particular rolling bearing, is connected to a line (20), the lubricant for active bearing lubrication having the rotor bearing.
    [8]
    8. Energy storage according to claim 7, characterized in that the line (20) is part of a device for oil lubrication.
    [9]
    9. Energy storage according to claim 7, characterized in that the line (20) ends in an opening, in particular in a nipple for grease lubrication, outside of the housing (13).
    [10]
    10. Energy store according to one of claims 1 to 9, characterized in that the energy store (5) has a segment motor (24) and the housing (13) of the energy store (5) has an opening (26) for the segment motor (24), wherein the at least one electrical winding (9) having stator (25) of the segment motor (24) inserted into the opening (26) of the housing (13) and with the outer rotor (11) for forming a segment motor (24) cooperates.
    [11]
    11. Energy storage device according to claim 10, characterized in that the opening (26) is arranged at the vertex of the housing shell (22).
    [12]
    12. A device for uninterruptible power supply with an electric machine (4) and with an energy store (5) according to one of claims 1 to 11, wherein the shaft (7) of the energy store (5) with the machine shaft (6) of the electric machine (4 ) connected is. 11/16 -3-
    [13]
    13. The apparatus according to claim 12, characterized in that the device comprises an internal combustion engine (2) and a coupling (3) which is provided between the electric machine (4) and the internal combustion engine (2). 12/16
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US20030137196A1|2002-01-24|2003-07-24|Abraham Liran|Power supply for providing continuous and regulated energy to the power user|
    EP1533884A1|2003-11-19|2005-05-25|KS Research, société anonyme|Kinetic energy storage|
    FR1576528A|1968-05-17|1969-08-01|
    CA969600A|1971-05-28|1975-06-17|Fukuo Shibata|Electromagnetic coupling and electric rotating machine arrangement control system|
    DE2828473A1|1978-06-29|1980-01-17|Bosch Gmbh Robert|OIL COOLED ELECTRICAL MACHINE|
    US4309620A|1979-12-03|1982-01-05|Calspan Corporation|Flywheel electric transmission apparatus|
    GB2078016A|1980-05-15|1981-12-23|Pa Management Consult|Hybrid machines, and vehicles powered thereby|
    BE1005802A3|1992-05-27|1994-02-01|Nobreak Power S A En Abrege Nb|Inductive coupler.|
    DE4408719C1|1994-03-15|1995-07-06|Volkswagen Ag|Combined electric generator and motor for vehicle hybrid drive|
    US5744895A|1995-01-31|1998-04-28|Nippondenso Co., Ltd.|System for driving electric vehicles|
    US6121705A|1996-12-31|2000-09-19|Hoong; Fong Chean|Alternating pole AC motor/generator with two inner rotating rotors and an external static stator|
    AT408045B|1998-01-30|2001-08-27|Schroedl Manfred Dipl Ing Dr|ELECTRICAL MACHINE|
    DE69932549T2|1998-07-14|2007-07-12|Murata Kikai K.K.|Single twisting machine of the single spindle type|
    ES2435819T3|2001-08-30|2013-12-23|Siemens Aktiengesellschaft|Electric machines in supraconduction technique for navy ships |
    JP3716809B2|2002-04-01|2005-11-16|日産自動車株式会社|Rotating electric machine|
    US6881027B2|2003-02-18|2005-04-19|Honeywell International, Inc.|Gearless/oilless gas turbine engine|
    JP4575891B2|2006-03-09|2010-11-04|三菱電機株式会社|Rotating electric machine|
    JP4747184B2|2008-04-14|2011-08-17|本田技研工業株式会社|Electric motor|
    GB201110640D0|2011-06-23|2011-08-10|Rolls Royce Plc|An electrical machine with contra-rotating rotors|
    US20130181562A1|2012-01-17|2013-07-18|Hamilton Sundstrand Corporation|Dual-rotor machine|BE1022140B1|2014-05-16|2016-02-19|KS RESEARCH société anonyme|POWER SUPPLY SYSTEM WITHOUT BREAK|
    US10312771B2|2015-11-13|2019-06-04|Tokyo Parts Industrial Co., Ltd.|Brushless motor|
    US10320264B2|2015-11-13|2019-06-11|Tokyo Parts Industrial Co., Ltd.|Brushless motor|
    JP6777986B2|2015-12-10|2020-10-28|東京パーツ工業株式会社|Brushless motor|
    WO2020095149A1|2018-11-08|2020-05-14|Ks Research, Société Anonyme|Uninterruptible-power-supply machine|
    BE1026772B1|2018-11-08|2020-06-09|Ks Research Sa|UPS Machine |
    法律状态:
    2020-03-15| PC| Change of the owner|Owner name: HITZINGER ELECTRIC POWER GMBH, AT Effective date: 20200128 |
    优先权:
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    ATA50276/2013A|AT514240B1|2013-04-22|2013-04-22|Energy storage and device for uninterruptible power supply|ATA50276/2013A| AT514240B1|2013-04-22|2013-04-22|Energy storage and device for uninterruptible power supply|
    PCT/AT2014/050097| WO2014172737A2|2013-04-22|2014-04-22|Energy store and device for an uninterrupted supply of energy|
    US14/785,886| US20160072358A1|2013-04-22|2014-04-22|Energy store and device for an uninterrupted supply of energy|
    SG11201508668PA| SG11201508668PA|2013-04-22|2014-04-22|Energy store and device for an uninterrupted supply of energy|
    EP14727370.0A| EP2989713A2|2013-04-22|2014-04-22|Energy store and device for an uninterrupted supply of energy|
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