• 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 housing for an electrical machine with a cooling device (14). In order to provide advantageous design conditions, it is proposed that the cooling device (14) is arranged circumferentially on a carrier plate (10), that the cooling device (14) contacts a heat conducting ring (17) connected to the housing, and that the carrier plate (10) and on this arranged 15 components have a vibration damping and electrical insulation. As a result, on the one hand, a favorable cooling effect is achieved and areas within the cooling device (14) can be provided for 20 components of the carrier plate (10).
    公开号:AT519371A4
    申请号:T51160/2016
    申请日:2016-12-20
    公开日:2018-06-15
    发明作者:Hellinger Leopold；Neumann Gerhard；Lex Manfred
    申请人:Melecs Ews Gmbh；
    IPC主号:
    专利说明:

    Housing for an electrical machine with a cooling device
    The invention relates to a housing for an electrical machine with a cooling device.
    In particular, in vehicle electronics, there is often the need to integrate devices with control electronics in a motor, in a transmission or in a pump, etc., to use limited installation space as well as possible and to keep short line paths. Heat emitted by, for example, transistors fitted with carrier plates can be dissipated via cooling devices as effectively as possible.
    From the prior art EP 2 429 273 A2 is known, in which a cooling device for an electrical device is described. On a support plate, an electronic circuit is arranged. Cylindrical contact dome mechanically and thermally contact dissipation generating elements. The pressing dome are provided between the housing inner walls and the power dissipation generating elements and press the carrier plate to an inner side of a designed as a heat sink housing cover. Through this housing cover resulting heat is dissipated by the power loss generating elements to an environment.
    Circumferentially arranged on the support plate pressing and cooling devices are not disclosed in EP 2 429 273 A2.
    Furthermore, US 2006/0082975 A1 shows a housing for an electronic control unit, which has a carrier plate. On two sides of the carrier plate are each along a straight line transistors, i. a total of two transistor rows arranged. Each of the two transistor rows is pressed against its own plate via a separate spring plate arranged between the housing and the respective transistor row. Immediately below each of the two transistor rows, a cooling device is arranged on the carrier plate. The support plate rests on heat sinks in the area of these cooling devices.
    The invention has for its object to provide a developed over the prior art housing.
    According to the invention this object is achieved with a housing of the type mentioned, in which the cooling device is arranged circumferentially on a support plate, wherein the cooling device contacts a heat conducting ring connected to the housing, and wherein the support plate and arranged on this components a vibration damping and a have electrical insulation.
    The circumferential arrangement of the cooling device on the support plate causes a large area or a large volume, can be discharged via the or via the heat from the support plate to an environment. Furthermore, a particularly compact and space-saving arrangement is achieved. This is helpful for applications in the automotive sector and in particular for use of the cooling device in the housing of the electrical machine.
    For example, the cooling device can be designed annular. As a result, the advantage is achieved that the available space within the cooling device on the support plate can be used for mounting elements. For example, can be arranged within the cooling device, a rotation sensor which cooperates with a front side on a rotating shaft under the support plate magnet.
    The contact of the cooling device with a heat conducting ring connected to the housing causes heat dissipation from the carrier plate along the heat conducting ring via the housing to an environment. For example, the heat conducting ring can be arranged on an inner circumferential surface of the example, cylindrically designed housing, whereby a heat dissipation over the lateral surface of the housing is achieved. In the area within the heat conducting ring components of the electrical machine can be arranged, such as sensors, waves, insulation body etc.
    Due to the peripheral design of the cooling device and the Wärmeleitrings a compact, space-saving arrangement is achieved with simultaneous effective heat dissipation from the housing.
    Furthermore, the vibration damping causes protection of the support plate and the components arranged thereon against mechanical stress.
    The cooling device has, for example, galvanically coated holes and metallized surfaces that are configured in such a way that heat is transported from one side of the carrier plate to an opposite side of the carrier plate, said sides being electrically isolated from each other. About the electrical insulation and a defined electrical connection between the support plate and the heat conducting an electromagnetic compatibility (EMC) is achieved.
    It is advantageous if the carrier plate is mounted on the Wärmeleitring.
    By this measure can be dispensed with separate means for mounting the support plate in the housing. The Wärmeleitring causes on the one hand heat removal from the housing and on the other hand it acts as a bearing seat for the support plate. This results in a space-saving arrangement with respect to the space budget available in the housing.
    A favorable solution is achieved if at least one electrically insulating and vibration damping
    Elastic element is non-positively connected to the support plate.
    Due to the multifunctional property of the elastic element, the number of components required for electrical insulation and for vibration damping is reduced and a particularly space-saving arrangement is achieved.
    An advantageous embodiment is obtained when a pressing ring arranged on a housing cover presses the carrier plate onto the heat conducting ring.
    It is also advantageous if the pressure ring is also designed as a spring and a seal.
    This measure results in a space-saving utilization of the available space in the housing space budget, since it can be dispensed with separate sealing means between the housing cover and the support plate.
    A favorable solution is obtained if an insulating body is provided between the carrier plate and the electric machine and if the insulating body is designed as a bearing seat for a shaft.
    The formation of the insulating body as a bearing seat a space-saving arrangement is achieved. Separate components for receiving a bearing of the shaft can be dispensed with.
    The invention will be explained in more detail by means of exemplary embodiments.
    They show by way of example:
    1 shows a section through the longitudinal axis of a housing according to the invention and an electrical machine, and
    Fig. 2: a section of an inventive
    Housing with a section of a carrier plate arranged therein.
    Fig. 1 shows an exemplary embodiment of a housing according to the invention and an electric machine in a sectional view.
    The housing is cylindrical and comprises a housing shell 1 and a housing cover 2 inserted in a form-fitting manner into the housing jacket 1. The housing cover 2 has a plug body 3 with an oval base and a housing opening 4. According to the invention, other than oval base surfaces of the plug body 3 are conceivable.
    Between the housing cover 2 and the housing shell 1, a first sealing ring 7 is arranged. About the housing opening 4, a connector 13 is inserted into the housing and connected to a cylindrical support plate 10. The support plate 10 is adjacent to its outer surface of an inner circumferential surface of the housing shell 1 and is powered by the connector 13 with energy.
    There are two electrically insulating and vibration damping elastic elements are provided, which are non-positively connected to the support plate 10: an inner part 5 and a pressure ring. 9
    The free-form inner part 5 made of silicone with a cylindrical contact element 6 is positively connected to the housing cover 2. The contact element 6 is aligned along a longitudinal axis 33 and presses against the carrier plate 10. According to the invention, embodiments of the inner part 5 with more than one contact element 6 are conceivable.
    Furthermore, on the front side of the housing cover 2, the pressing ring 9 made of silicone is provided, which presses on the support plate 10 and generates a spring force on the support plate 10 due to its resilient property. The pressure ring 9 also has a sealing function. It is designed as a one-piece ring. However, embodiments with multi-part contact pressure rings 9 are also conceivable according to the invention.
    The inner part 5 and the pressure ring 9 cause a vibration damping and thus a mechanical decoupling of the support plate 10th
    The support plate 10 comprises on its base and its top surface mounting elements which generate heat loss. There are a first transistor 16, further transistors and a known from the prior art, magnetic rotation sensor executed sensor 15 on the support plate 10 is provided. In an outer region of the carrier plate 10, a grid-like and annular circumferential running cooling device 14 is formed, which has galvanically coated blind holes, buried holes and metallized surfaces. The effect of the embodiment of the metallized blind holes also causes an electrical insulation of the cooling device 14 of the heat-conducting 17. About a shown in Fig. 2 insulation barrier 11 and a shield connection 12 is a defined Contacting the support plate 10 is generated with the heat conducting 17.
    The support plate 10 is located in the region of the cooling device 14 on the connected to the housing shell 1 heat conducting 17, which is made of aluminum, on. The contact element 6 and the contact pressure ring 9, which contacts the carrier plate 10 in the region of the cooling device 14, press the carrier plate 10 against the heat conducting ring 17, whereby a particularly effective dissipation of heat from the mounting elements of the support plate 10 via the cooling device 14 and the heat conducting ring 17 in the housing and from there into an environment is achieved.
    The support plate 10 is clamped between the contact pressure ring 9 and the heat conducting ring 17.
    Adjacent to the carrier plate 10 and in a lower region to the heat conducting ring 17, an electrically non-conductive cylindrical insulating body 18 is connected to the housing shell 1. A lateral surface of the insulating body 18 adjoins the inner circumferential surface of the housing shell 1. Between the insulating body 18 and the housing shell 1, a second sealing ring 8 is arranged.
    In the insulation body 18, a Verschaltegitter 19 is embedded, which poles the connected as a 3-phase AC motor running electrical machine.
    The insulating body 18 has, in a central region, a recess 20 in which a first bearing 22 designed as a ball bearing is arranged. In the first bearing 22, a shaft 24 is mounted.
    The shaft 24 is aligned along and about the longitudinal axis 33. On a front side 25 of the shaft 24, a magnet 21 is arranged.
    Between the insulating body 18 and the support plate 10 and within the Wärmeleitrings 17, the sensor 15 is provided. This cooperates with the magnet 21 via a magnetic field penetrating the insulating body 18 in such a way that rotational angles of the shaft 24 are measured.
    With reference to the illustration in Fig. 1 below the insulating body 18 and around the shaft 24 around a cylindrical rotor 26 of the electric machine is arranged and to the rotor 26, a cylindrical stator 27. The stator 27 is adjacent to the outer surface with its outer circumferential surface the housing shell 1 and is electrically connected to the insulating body 18. The rotor 26 and the stator 27 are known in the art.
    With reference to the illustration in FIG. 1 under the rotor 26 and the stator 27, a flange plate 28 is arranged, which closes the housing end face. The flange plate 28 is connected to the housing shell 1 via a weld 32. Furthermore, the housing shell 1 via a first
    Screwed connection 30, a second screw 31 and other screw connections screwed in a flange-shaped portion of the housing shell 1 with the housing shell 1. The first screw connection 30, the second screw connection 31 and the other screw connections run parallel to the longitudinal axis 33.
    In a central region of the flange plate 28, a bore 29 is formed, in which the shaft 24 extends out of the housing. Furthermore, with the flange plate 28 designed as a ball bearing second bearing 23 is connected, in which the shaft 24 is mounted. About the flange plate 28, a heat dissipation is achieved in the environment.
    FIG. 2 shows a detail of a housing according to the invention with a detail of a carrier plate 10 arranged in the housing, on which a first transistor 16 and further component elements are arranged. The constructive principle corresponds to the embodiment variant shown in FIG. 1, therefore, the same reference numerals as in FIG. 1 are used.
    The support plate 10 is cylindrical and adjoins with its lateral surface to an inner circumferential surface of a cylindrical housing shell 1. Introduced into the housing shell 1 is a cylindrical housing cover 2, which adjoins with its lateral surface against the inner circumferential surface of the housing shell 1. On the housing cover 2, a contact pressure ring 9 is arranged frontally, which presses in the region of its top surface on the support plate 10.
    The support plate 10 rests on its base on a cylindrical heat conducting ring 17, which is connected via its outer circumferential surface and the inner circumferential surface of the housing shell 1 with the housing shell 1.
    The support plate 10 has, as described in connection with FIG. 1, an annular cooling device 14 and an electrical insulation barrier 11. The contact pressure ring 9 and the heat-conducting ring 17 touch the carrier plate 10 in the region of this cooling device 14 or clamp the carrier plate 10. This results in a favorable heat dissipation from the mounting elements of the support plate 10 via the support plate 10, the cooling device 14 and the heat-conducting ring 17 to the housing and from there into an environment.
    The cooling device 14 has galvanically coated holes and metallized surfaces for this heat transfer. They are designed in such a manner that heat is conducted from one side (e.g., top) of the support plate 10 to an opposite side (e.g., bottom) of the support plate 10 without electrically connecting said sides.
    List of designations 1 Housing jacket 2 Housing cover 3 Plug body 4 Housing opening 5 Inner part 6 Contact element 7 First sealing ring 8 Second sealing ring 9 Contact ring 10 Support plate 11 Insulation barrier 12 Shield connection 13 Connector 14 Cooling device 15 Sensor 16 First transistor 17 Heat conducting ring 18 Insulation body 19 Interlocking grid 20 Recess 21 Magnet 22 First Bearing 23 Second bearing 24 Shaft 25 End 26 Rotor 27 Stator 28 Flange plate 29 Bore 30 First screw connection 31 Second screw connection 32 Weld 33 Longitudinal axis
    权利要求:
    Claims (12)
    [1]
    claims
    1. Housing for an electrical machine with a cooling device, characterized in that the cooling device (14) is arranged circumferentially on a support plate (10) that the cooling device (14) contacts a heat conducting ring (17) connected to the housing, and that the Support plate (10) and disposed thereon components have a vibration damping and electrical insulation.
    [2]
    2. Housing according to claim 1, characterized in that the cooling device (14) is annular.
    [3]
    3. Housing according to claim 1 or 2, characterized in that the cooling device (14) has galvanically coated holes and metallized surfaces, which are designed in such a way that heat from one side of the support plate (10) on an opposite side of the support plate ( 10), said sides being electrically isolated from each other.
    [4]
    4. Housing according to one of claims 1, 2 or 3, characterized in that the carrier plate (10) is mounted on the heat conducting ring (17).
    [5]
    5. Housing according to one of claims 1, 2, 3 or 4, characterized in that at least one electrically insulating and vibration damping elastic element is non-positively connected to the carrier plate (10).
    [6]
    6. Housing according to claim 4 or 5, characterized in that a on a housing cover (2) arranged pressing ring (9) the support plate (10) on the heat conducting ring (17) presses.
    [7]
    7. Housing according to claim 6, characterized in that the pressure ring (9) is at the same time designed as a spring and a seal.
    [8]
    8. Housing according to one of claims 1, 2, 3, 4, 5, 6 or 7, characterized in that on the carrier plate (10) within the circulating cooling device (14), a sensor (15) is arranged.
    [9]
    9. Housing according to claim 8, characterized in that the sensor (15) is designed as a rotation sensor.
    [10]
    10. Housing according to one of claims 1, 2, 3, 4, 5, 6, 7, 8 or 9, characterized in that between the support plate (10) and the electrical machine, an insulating body (18) is provided.
    [11]
    11. Housing according to claim 10, characterized in that the insulating body (18) is designed as a bearing seat for a shaft (24).
    [12]
    12. Housing according to claim 11, characterized in that on one end face (25) of the shaft (24) with the sensor (15) via a insulating body (18) penetrating magnetic field cooperating magnet (21) is arranged.
    类似技术:
    公开号 | 公开日 | 专利标题
    AT519371B1|2018-06-15|Housing for an electrical machine with a cooling device
    EP3007330B1|2017-09-13|Electronically commutated dc motor, in particular for an oil pump
    EP2242344A1|2010-10-20|Electronics housing with partial cooling body
    DE102015214201B4|2020-01-30|Electronic device and drive device with an electronic device
    EP1447900B1|2007-05-23|Power supply unit
    DE102010049577A1|2011-08-25|end cap
    DE102017207165A1|2018-12-13|Electric drive unit with a housing
    DE112005000372T5|2009-03-19|Connector fixing structure
    DE102016107079A1|2016-10-27|Motor drive control for a vehicle
    EP2607709A1|2013-06-26|Electric motor
    EP2856620A1|2015-04-08|Electronically commutated dc motor with shielding
    EP2224579B1|2014-02-19|Motor vehicle generator electric motor
    DE19634097C2|1998-07-09|Electric motor
    EP2892129A2|2015-07-08|Electrical device with an electrical connection integrated into the cover of the housing
    EP2725691B1|2017-09-20|Auxiliary device for motor vehicle
    DE102013020094A1|2015-06-03|Electric motor, in particular radiator fan motor
    EP3120442B1|2020-06-03|Electric motor, in particular external rotor motor, and intermediate insulating part for an electric motor
    DE102005032964A1|2007-01-18|Inverter motor for use as commercial motor, has strand of printed circuit boards formed by flexible connecting units, where hollow cylinder is formed in radial space that is provided between active part of motor and motor housing
    DE102017118781A1|2019-02-21|Drive unit for an actuator
    WO2014102066A2|2014-07-03|Pump unit
    DE102005032967A1|2007-01-18|Frequency converter motor for decentralized drive system, has stator laminated core fixed in part of two-piece converter motor housing using four pivots, where inner side of part of housing is provided with axially running cooling fins
    DE102014016171A1|2016-02-11|Electric drive device
    AT518125B1|2020-01-15|Housing cover for an electrical machine
    DE102013210726A1|2014-12-11|Wet operated anchor
    WO2017034013A1|2017-03-02|Terminal base
    同族专利:
    公开号 | 公开日
    US20210135545A1|2021-05-06|
    EP3516758A1|2019-07-31|
    AT519371B1|2018-06-15|
    WO2018114349A1|2018-06-28|
    EP3516758B1|2021-07-14|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0769840A1|1995-10-21|1997-04-23|EBM ELEKTROBAU MULFINGEN GmbH & Co.|Brushless electric motor|
    US20060250756A1|2005-04-19|2006-11-09|Denso Corporation|Electronic circuit apparatus|
    US8506264B2|2010-08-16|2013-08-13|Sunonwealth Electric Machine Industry Co., Ltd.|Motor and cooling fan with a circuit board having a heat-conducting insulator|
    JP2015106970A|2013-11-29|2015-06-08|株式会社デンソー|Drive device|
    US20160036299A1|2014-07-31|2016-02-04|Denso Corporation|Drive device assembled by an interference fit|DE202019106968U1|2019-12-13|2021-03-16|C. & E. Fein Gmbh|Electric motor for a hand machine tool|JPH11356006A|1998-06-03|1999-12-24|Tokyo R & D:Kk|Electric motor|
    DE102014220201A1|2014-10-06|2016-04-07|Bühler Motor GmbH|Electronically commutated DC motor, in particular for an oil pump|AT522208A1|2019-03-13|2020-09-15|Melecs Ews Gmbh|Electric machine|
    AT522633B1|2019-05-29|2021-07-15|Melecs Ews Gmbh|Contact pin, carrier plate and electrical machine|
    AT523330A1|2019-12-19|2021-07-15|Melecs Ews Gmbh|Electronic device|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    ATA51160/2016A|AT519371B1|2016-12-20|2016-12-20|Housing for an electrical machine with a cooling device|ATA51160/2016A| AT519371B1|2016-12-20|2016-12-20|Housing for an electrical machine with a cooling device|
    EP17844637.3A| EP3516758B1|2016-12-20|2017-12-07|Housing for an electric machine with a cooling device|
    PCT/EP2017/081779| WO2018114349A1|2016-12-20|2017-12-07|Housing for an electric machine with a cooling device|
    US16/471,439| US20210135545A1|2016-12-20|2017-12-07|Housing for an Electric Machine with a Cooling Device|
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