EP2730010A1 - Moteur électrique - Google Patents

Moteur électrique

Info

Publication number
EP2730010A1
EP2730010A1 EP11782365.8A EP11782365A EP2730010A1 EP 2730010 A1 EP2730010 A1 EP 2730010A1 EP 11782365 A EP11782365 A EP 11782365A EP 2730010 A1 EP2730010 A1 EP 2730010A1
Authority
EP
European Patent Office
Prior art keywords
housing
electric motor
terminal box
opening
motor according
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.)
Withdrawn
Application number
EP11782365.8A
Other languages
German (de)
English (en)
Inventor
Gerald Stork
Wieland SCHÄFER
Hans Teuber
Erol BERNSTEIN
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.)
Hanning Elektro Werke GmbH and Co KG
Original Assignee
Hanning Elektro Werke GmbH and Co KG
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 Hanning Elektro Werke GmbH and Co KG filed Critical Hanning Elektro Werke GmbH and Co KG
Publication of EP2730010A1 publication Critical patent/EP2730010A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/03—Pumps characterised by combination with, or adaptation to, specific driving engines or motors driven by electric motors
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207—Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium with openings in the casing specially adapted for ambient air
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/18—Casings or enclosures characterised by the shape, form or construction thereof with ribs or fins for improving heat transfer
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K5/00—Casings; Enclosures; Supports
    • H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/22—Auxiliary parts of casings not covered by groups H02K5/06-H02K5/20, e.g. shaped to form connection boxes or terminal boxes
    • H02K5/225—Terminal boxes or connection arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/14—Arrangements for cooling or ventilating wherein gaseous cooling medium circulates between the machine casing and a surrounding mantle

Definitions

  • the invention relates to an electric motor having a housing in which a coaxially arranged to a motor shaft stator and a rotor are arranged, and with a arranged on a peripheral wall of the housing terminal box th, are arranged in the electronic components.
  • an electric motor with a housing in which in addition to a motor shaft, a stator and a rotor and electrical components for a frequency converter are arranged integrated in the cup-shaped B-side end shield. So that these electrical components can be additionally cooled, is a Auxiliary fan disposed coaxially with the motor shaft between the stator and rotor on one side and the electrical components on the other side.
  • the object of the present invention is to provide an electric motor with a housing and a circumferentially arranged on the housing Terminal box in which electrical components are to develop such that improved heat dissipation of the arranged in the terminal box of the engine electrical components is ensured.
  • the invention in conjunction with the preamble of claim 1, characterized in that on the one hand between the terminal box and the housing at least one breakthrough and on the other hand in the housing an integral with the motor shaft auxiliary fan wheel are provided, such that in Operation of the electric motor, an air flow from an interior of the housing into an interior of the terminal box and / or is reversed strömbar.
  • At least one opening is provided between a terminal box accommodating electrical components and a housing of the electric motor, through which a stream of air generated by means of an auxiliary fan arranged in the housing of the electric motor can be flowed out or out again into the terminal box.
  • the heat generated by the electrical components of the terminal box is dissipated directly by an air flow, which flows into an interior of the terminal box, flows around the electrical components and then flows back into the housing. Due to the immediate flow around the electrical components, the arms can be removed relatively quickly and effectively from the terminal box.
  • an auxiliary fan wheel for generating the electrical components in the terminal box cooling air flow is arranged in a common radial plane to the opening.
  • the auxiliary fan is thus aligned with the opening, so that a radial air flow can be generated, which essentially serves to cool the electrical components located in the terminal box.
  • a circuit board is arranged between the Hilfslalthougherrad and a B-end plate side of the housing, which additionally serves as a guide surface for the air flow. In this way, the air flow can be directed into the interior of the terminal box or led out of the same purposeful.
  • the opening has a first opening for the flow of air flow from the housing into the terminal box and a second opening for the passage of air flow from the terminal box into the housing.
  • the first opening opening and the second opening opening of the opening are arranged in the same radial plane, in which the Hilfslplexerrad or the cutting disc is located. In a connection region between the terminal box and the housing, there is thus a radial flow of air from the housing into the terminal box and from the terminal box into the housing.
  • the cutting disc each having a breakthrough opening associated with noses on, which extend into the respective breakthrough openings.
  • an improved guidance of the air flow from the housing into the terminal box and vice versa can thus be achieved.
  • the cutting disk is designed as a conductor disk (printed circuit board), on the first flat side and / or second flat side electrical components are arranged electrically contacted.
  • the airflow generated by the auxiliary fan wheel may cool not only components in the terminal box but also components disposed within a radial plane within the housing.
  • the auxiliary fan to form fan blades on a flat side on a plurality of straight radial webs, which cooperate for speed detection of the electric motor with an optical sensor.
  • the differently colored radial webs for example, can interact with a light barrier, for example.
  • a space-saving measuring device for determining the speed can thus be integrated in the housing.
  • the housing has a B-end shield, in which a main shaft connected to the motor shaft is arranged.
  • a self-ventilation of the electric motor can thereby be achieved.
  • the air flow generated in front of the main fan wheel flows essentially in the axial direction and is used exclusively for cooling components within the housing.
  • FIG. 1 shows a perspective view of an electric motor with a housing and a terminal box applied on top
  • FIG. 2 is a perspective view of the electric motor seen obliquely from above without a B
  • FIG. 4 is a perspective view of components provided for the ventilation of the terminal box.
  • An electric motor 1 may be formed, for example, as a Synchronmo gate and consists of a housing 2 and a top side on a peripheral wall of the housing 2 force or cohesively mounted terminal box. 3
  • the terminal box 3 has a cup-shaped wall contour 4, within which runs parallel to a motor shaft 5 extending circuit board 6, which is equipped with electronic components 7.
  • the electrical components 7 arranged on the printed circuit board 6 can form a network input voltage circuit arrangement and / or a rectifier.
  • the housing 2 of the electric motor 1 has an A-end shield 8, a middle part 9, a B-end shield 10 and a fan cover 11, which are arranged in the axial direction one behind the other and coaxial with each other.
  • the motor shaft 5 in the region of the housing middle part 9, a stator and a rotor, in the area of the fan cover 11, a main fan 13 and in the region of the B-bearing plate 10, an auxiliary fan 14 and a blade 15 is arranged.
  • the Hilfslanderrad 14 is rotatably connected to the motor shaft 5 and serves to generate an air flow L, which is guided over an opening 16 from an interior of the housing 2 in an interior of the terminal box 3 and from the same back into the interior of the housing 2, so that the in the terminal box 3 generated by the electrical components 7 loss heat is dissipated to the outside via the housing 2 to the environment. In this Heise heat accumulation in the terminal box 3 can be avoided, which would adversely affect the life of the electronic components 7.
  • the opening 16 consists of a first opening 16 '. and a second breakthrough opening 16 "which are arranged in a common radial plane.
  • an increased pressure in the region of the first opening 16 'and a reduced pressure in the area of the second opening 16" are produced. so that a portion of the air flow L is directed in the direction of arrow 18 into the interior of the terminal box 3 and part of the air flow L in the direction of arrow 19 from the interior of the terminal box 3 in the housing 2. It takes place within the terminal box 3, a direct flow around the electrical components 7, which increases the effectiveness of the heat dissipation.
  • the stationary arranged on the B-bearing plate 10 separating disk 15 is annular and extends transversely to the motor shaft 5, wherein an outer diameter of the cutting disk 15 is slightly smaller than an inner diameter of the B-LagerSchildes 10. It thus occurs almost a complete spatial separation to an end face of the B-bearing plate 10, at which the fan cover 11 connects in the axial direction.
  • the cutting disk 15 delimits a shaft and / or a radial plane in which the auxiliary air wheel 14 and the opening 16 extend with its two first through hole 16 'extending in the same radial plane and the second opening 16' '.
  • the cutting disk 15 has on a side facing the opening 16 a first lug 20 and a second lug 21, wherein the first lug 20 projects into the first opening 16 'and the second lug 21 into the second opening 16'.
  • the first lug 20 and the second lug 21 of the cutting disk 15 protrude beyond the aperture opening of the housing 2 and the junction box 3 into a first opening 6 'or a second opening 6''of the circuit board 6.
  • this causes an almost laminar flow along the arrows 18, 19.
  • the cutting disk 15 is designed as a conductor disk with two flat sides, wherein a number of electrical components 22 are arranged on a flat side facing the auxiliary fan wheel 14. These components 22 may, for example, form an intermediate circuit and an inverter for driving the electric motor 1.
  • these electrical components 22 arranged within the housing 2 may also be aerated by the air flow L.
  • the auxiliary fan 14 has as fan blades on a number of straight radial webs 23, which serve on the one hand for generating the air flow L and the other in conjunction with an optical sensor, not shown, for detecting the speed of the electric motor 1.
  • the optical sensor is arranged and aligned axially with respect to the radial webs 23, whereby radial webs 23 arranged in contrast with the background are detected by the optical sensor as a function of rotational speed.
  • more than two apertures 16 ', 16 " may also be provided
  • the radial plane in which the aperture 16 is located is preferably formed as a slot which passes through the axial direction Cutting discs 15 on one side and by the stator and the rotor on the other side is limited.
  • the cutting disk 15 may also be connected in a rotationally fixed manner to the motor shaft 12.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)

Abstract

L'invention concerne un moteur électrique pourvu d'un carter, dans lequel sont disposés un stator disposé de manière coaxiale par rapport à un arbre du moteur et un rotor, et d'une boîte de bornes qui est disposée sur une paroi circonférentielle du carter et dans laquelle sont disposés des composants électroniques. Le moteur comprend d'une part un passage entre la boîte de bornes et le carter et, d'autre part, dans le carter, une roue de ventilateur auxiliaire reliée de manière solidaire à l'arbre du moteur de telle manière que, lors du fonctionnement du moteur électrique, un flux d'air peut s'écouler d'une cavité intérieure du carter vers une cavité intérieure de la boîte de bornes et/ou inversement.
EP11782365.8A 2011-07-08 2011-07-08 Moteur électrique Withdrawn EP2730010A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DE2011/001437 WO2013007225A1 (fr) 2011-07-08 2011-07-08 Moteur électrique

Publications (1)

Publication Number Publication Date
EP2730010A1 true EP2730010A1 (fr) 2014-05-14

Family

ID=44970896

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11782365.8A Withdrawn EP2730010A1 (fr) 2011-07-08 2011-07-08 Moteur électrique

Country Status (4)

Country Link
US (1) US9494145B2 (fr)
EP (1) EP2730010A1 (fr)
CN (1) CN103718430B (fr)
WO (1) WO2013007225A1 (fr)

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2639940B1 (fr) * 2012-03-15 2014-09-24 Grundfos Holding A/S Moteur électrique
DE102013202033B4 (de) * 2013-02-07 2022-05-25 Flender Gmbh Elektrische Maschine mit aktiver Kühlung des Anschlusskastens
DE102013203068B4 (de) * 2013-02-25 2022-05-05 Flender Gmbh Elektrische Maschine mit gekühltem Anschlusskasten und Kühlverfahren
CN204794460U (zh) * 2014-10-12 2015-11-18 青岛三利智能动力有限公司 一种水泵专用变频电机
CN104953754B (zh) * 2015-06-30 2018-04-27 青岛三利智能动力有限公司 一种电机
CN104967243B (zh) * 2015-06-30 2018-02-23 青岛三利智能动力有限公司 一种变频电机及供水系统
CN104953752B (zh) * 2015-06-30 2018-02-23 青岛三利智能动力有限公司 变频智能电机及供水系统
FR3042327B1 (fr) * 2015-10-07 2019-08-02 Guillemot Corporation Systeme de refroidissement d'un moteur electrique
CN105545721B (zh) * 2016-01-29 2018-07-10 谱罗顿智控电子科技（浙江）有限公司 一种水泵与电动调节装置的一体式散热结构
FR3069738B1 (fr) * 2017-07-31 2019-08-16 Safran Electrical & Power Turbomachine a moteur de demarrage a ventilation reversible, procede de refroidissement associe
USD918141S1 (en) * 2018-06-22 2021-05-04 Siemens Aktiengesellschaft Electric motor
USD909973S1 (en) * 2019-03-08 2021-02-09 Abb Schweiz Ag Motor housing

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JPS6173542A (ja) 1984-09-17 1986-04-15 Hitachi Ltd 回転電機の内圧防爆構造
ZW1689A1 (en) * 1988-02-15 1989-05-31 Techmarex Proprietary Limited Generator
DE3825035B4 (de) * 1988-07-09 2006-11-23 Flux-Geräte GmbH Bürstenloser, elektrisch kommutierter Motor für eine Faß- oder eine Behälterpumpe zum Betieb an einem Wechselspannungsnetz
JP2686989B2 (ja) * 1988-10-25 1997-12-08 株式会社佐竹製作所 可変速誘導電動機
JPH03222652A (ja) 1989-10-27 1991-10-01 Fuji Electric Co Ltd 排気ダクト付き両吸込み形回転電機
JP3222652B2 (ja) 1993-09-10 2001-10-29 株式会社東芝 半導体発光装置
DE19631517A1 (de) 1996-08-03 1998-02-05 Wacker Werke Kg Von einem Elektromotor angetriebenes, an Einphasenwechselstrom anschließbares, drehzahlvariables, handgehaltenes Elektrowerkzeug
DE10339585A1 (de) 2003-08-26 2005-03-24 Wilo Ag Optimierte Kühlluftzuführung
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Also Published As

Publication number Publication date
WO2013007225A1 (fr) 2013-01-17
CN103718430B (zh) 2016-05-11
US20140140872A1 (en) 2014-05-22
US9494145B2 (en) 2016-11-15
CN103718430A (zh) 2014-04-09

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Inventor name: SCHAEFER, WIELAND

Inventor name: TEUBER, HANS

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Inventor name: BERNSTEIN, EROL

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