WO2012123108A2 - Zone de raccordement électrique d'un moteur électrique - Google Patents

Zone de raccordement électrique d'un moteur électrique Download PDF

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Publication number
WO2012123108A2
WO2012123108A2 PCT/EP2012/001128 EP2012001128W WO2012123108A2 WO 2012123108 A2 WO2012123108 A2 WO 2012123108A2 EP 2012001128 W EP2012001128 W EP 2012001128W WO 2012123108 A2 WO2012123108 A2 WO 2012123108A2
Authority
WO
WIPO (PCT)
Prior art keywords
plug
electric motor
motor according
collar
plug part
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
Application number
PCT/EP2012/001128
Other languages
German (de)
English (en)
Other versions
WO2012123108A3 (fr
Inventor
Ismet Sacit SOYUBEY
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.)
Wilo SE
Original Assignee
Wilo SE
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=45929489&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=WO2012123108(A2) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Wilo SE filed Critical Wilo SE
Publication of WO2012123108A2 publication Critical patent/WO2012123108A2/fr
Publication of WO2012123108A3 publication Critical patent/WO2012123108A3/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/62—Means for facilitating engagement or disengagement of coupling parts or for holding them in engagement
    • H01R13/629—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances
    • H01R13/631—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only
    • H01R13/6315—Additional means for facilitating engagement or disengagement of coupling parts, e.g. aligning or guiding means, levers, gas pressure electrical locking indicators, manufacturing tolerances for engagement only allowing relative movement between coupling parts, e.g. floating connection
    • 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 an electric motor for driving a pump, in particular a circulation pump for heating systems, with a motor housing made of metal and a plug-in area, which has an electrical plug part with a plurality of plug contacts, in mating plug contacts of a mating plug
  • Electric motors generally have a so-called terminal box, in which the electrical connections of the windings of the stator and / or the rotor are for contacting.
  • the terminal box is on the motor housing of the stator and / or the rotor are for contacting.
  • Electric motor attached.
  • the electronics for controlling the electric motor in particular a frequency converter with his
  • the terminal box thus forms a
  • the electronics housing can reach a weight between 10 kg and 20 kg and are therefore usually screwed tightly to the electric motor housing, wherein the electrical contacting of the motor via screw terminals, which are placed in the interior of the electronics housing, where they open lid the electronics housing are accessible.
  • DE 200710022070 A1 describes an electric motor with a stator, wherein the electrical contacting of the windings of the stator takes place via a plug element fixedly connected to the stator, which is essentially connected to the stator end, i. is arranged with respect to a side facing away from the pump side of the stator to be realized centrifugal pump.
  • An attachable to the motor housing housing part comprises in its interior at least one plug for contacting the
  • the housing part is attached to the upper side of the motor housing and rests on this.
  • the drive shaft is vertical, such a connector outside the motor housing disadvantageous because the weight between 0 and 20 kg heavy electronics housing at least partially on the connector.
  • the rigidly connected to the motor housing or the stator plug member can be damaged when placing the terminal box, when the assembly of the electric motor and electronics housing is not exactly aligned but slightly angled. The plug element could break in this case.
  • the present invention is therefore an object of the invention to provide an electric motor for a pump with an electrical plug-in range available, which ensures a simple, safe and damage-free placement of the electronics housing on the electric motor.
  • an electric motor for driving a pump in particular a circulating pump for heating systems, proposed with a motor housing made of metal and a plug-in area having an electrical connector part with a plurality of plug contacts, which are plugged into mating plug contacts of a mating plug of an electronic housing of the electric motor, wherein the plug part floating is movably held on the motor housing.
  • the joining of the electronics housing and the electric motor can be done with a certain amount of play.
  • the electronics housing can be placed on the plug-in area of the motor housing to a slight extent askew. This facilitates on the one hand the placement, because the plug part can align with the mating plug contacts of the mating plug-in area.
  • the plug part prevents the mobility that breaks the plug part due to a mechanical stress caused by an oblique touch and / or that the plug contacts or
  • Mating plug contacts are bent. Floating within the meaning of the invention thus means that the plug parts in both the lateral direction, i. is movable in a plane sideways to a limited extent, as well as slightly about its elevation axis, i. around the normal at that level can be tilted.
  • the plug part power contacts for energizing the electric motor and signal contacts for the transmission of sensor or control signals.
  • Electric motor provided that allows the contacting of all electrical components in the electric motor, in particular the contacting of the stator and one or more sensors, such as speed sensor,
  • Temperature sensor, pressure sensor and / or vibration sensor which may be arranged inside the pump and / or the electric motor. Also, the rotor via the plug part in the case of an embodiment of the electric motor as
  • Asynchronous motor can be energized with squirrel cage. Another, separate
  • Plug-in area no longer has to be provided on the motor.
  • the motor housing may have a projecting from its outer wall collar which surrounds the plug part at a distance with play and limits its lateral movement.
  • the collar forms a wall which encloses the plug part. Due to the distance between plug part and collar, the plug part can sideways in a plane at least slightly
  • this plane is preferably parallel to the motor shaft axis. That is, when the electric motor is stopped, i. vertical motor shaft, also this plane is vertical.
  • the plug part is kept floating on the motor housing.
  • the male part may be slightly extended about a further axis, namely the in-plane normals, i. be rotated by a few degrees, in particular a maximum of 8 °. The angle of rotation depends on the distance between collar and plug part. At maximum rotation, sideways movement is no longer possible, because the plug part already abuts the inside of the collar.
  • the plug part can also be easily pivoted due to the game between collar and plug part by the normal
  • the angle of inclination of the distance between the collar and plug part depends. However, it is preferably at most 10 °, in particular between 2 ° and 8 °. Will the normal at
  • vertical electric motor is horizontal, in particular runs radially to the motor axis, inclined to the right or left, there is a slight pivoting movement of the
  • Plug parts around the vertical axis of the plug part Preferably, the distance between the collar and the plug part at the sides between 0.2 mm and 2 mm, in particular 0.2 and 1 mm.
  • the distance need not be equal to the entire circumference of the plug part. However, it should be such that it allows at least one movement of the male part within the collar by 0.5 mm to 1 mm.
  • the plug contacts of the plug part can protrude with respect to the collar. This has the advantage that the cutting planes between the plug contacts of the plug part and the mating plug contacts of the electronics housing deep in the
  • Mating plug portion of the electronics housing rests, so that a high protection against ingress of water and moisture is given at the mating area.
  • the plug part on its outer wall projecting projections, with which the plug part is held on the motor housing and / or on the collar.
  • the plug part can be at least a first tongue-shaped
  • Projection preferably two tongue-shaped first projections, which in a receiving space rests on the inside of the collar / eino.
  • the plug part is mounted at a first location on the motor housing.
  • the receiving space may be formed by a base which is covered or coverable towards the open end of the collar by a cover, so that the first projection or the first
  • the plug part can be used with its first projection or its first projections in the plug-in area and then held by means of the cover stationary in the receiving space.
  • the cover may for example be formed by the head of a screw which is inserted into a threaded bore of the base.
  • the projection or the projections are in this case between the base and the screw head. It is important to ensure that the screw is not tightened too far, so that the plug part is not clamped at its first projection / its first projections. This can be done, for example, that the Tapped hole in the base has a bottom at a certain depth such that the screw abuts against the ground before the screw head the
  • the base may have at least one extension on which rests the cover, in particular the screw head, wherein the height of the extension is greater than the height of the first projection, so that the plug part remains movable in the receiving space.
  • the plug part may have at least one second projection and one third projection, which are spaced apart and between which a part of the motor housing or of the collar rests with play.
  • the plug part can be loosely attached or secured at a second location on the motor housing or on the collar.
  • the second and third projection are spaced apart and between which a part of the motor housing or of the collar rests with play.
  • the second projection may be hook-shaped and engage under the motor housing.
  • a projection in particular rib-shaped, which lies between the second and third projection.
  • the plug member is held loosely movable at the second location, the distance between the second and the third projection is slightly, in particular 0.2 mm to 0.6 mm larger than the wall thickness of the motor housing or the thickness of the rib on the collar.
  • two third projections are provided, which are nose-shaped and
  • the plug part can have a base, of which the
  • Plug contacts protrude toward the open end of the collar, and whose height is at least half the height of the collar. Due to the height of the base relative to the height of the collar, the inclinability of the plug part is limited with respect to the above-mentioned normals, preferably to a maximum of 10 °.
  • the collar is made in one piece with the motor housing made of cast aluminum. This has the advantage that the collar can be made a manufacturing step with the motor housing.
  • the plug part made of glass fiber reinforced plastic, for example made of PET (polyethylene terephthalate) with 30% glass fiber content. This provides an excellent electrical
  • the plug-in area may have at least two sockets for receiving guide pins of the mating plug portion of the electronics housing, wherein the inside of the receiving means is conical.
  • the plug-in area can have a further socket in which a grounding pin of the mating plug-in area of the electronics housing in its
  • grounding of the motor housing is simultaneously effected by means of the plug-in area, so that the plug part need not have a separate grounding contact.
  • the grounding pin also serves for the mechanical guidance and alignment of the mating plug-in area relative to
  • the sockets are integrally formed with the collar and lie inside the collar, so that the plug part is arranged between the sockets.
  • the collar can have a first recess and a second recess with respect to its height in cross-section, wherein the area between the first and the second recess of a plug-in sleeve of the mating plug portion of the electronics housing form fit
  • a sealing ring Before the second recess may be arranged a sealing ring whose diameter is greater than the height of the second recess.
  • Plug-in sleeve thus encloses the plug-in area of the electric motor completely sealed.
  • Fig. 1 Electric motor with plug-in area in plan view
  • Fig. 2 Section of an axial section through electric motor with plug-in area
  • Fig. 3 plug part in a perspective view from above
  • Fig. 4 plug part in a perspective view from below
  • Fig. 5 longitudinal section through the plug-in area of the electric motor with mounted
  • Figure 1 shows an electric motor 1 according to the invention in plan view of the
  • the electric motor 1 has a motor housing 2 made of metal and is placed vertically to drive a pump, not shown, so that its motor shaft 24 is vertical. On the circular cylindrical motor housing 2 off
  • Cast aluminum are arranged on four sides in the longitudinal direction parallel cooling fins 22, which are covered by cooling air, which is generated by a ventilation wheel 23 at the upper end of the motor shaft 24.
  • the motor housing 2 is surrounded by an outer housing, not shown, through which a flow channel for the cooling air is formed.
  • the plug-in region 3 is arranged on one of the four outer sides of the motor housing 2 between the cooling ribs 22. He has an electrical connector part 4
  • Plug contacts forms six power contacts 5, which for energizing the
  • Windings U1, V1 and W1 serve. Further power contacts 5 can be connected in order to supply additional windings (U1) *, (V1) * and (W1) * with power if required.
  • a second group of plug contacts is formed by eight signal contacts 6 for the transmission of measurement signals from sensors which are located inside the sensor
  • Electric motor 1 or the pump are arranged. Even with the signal contacts 6, it is not necessary that all of the existing plug contacts mandatory are interconnected. Rather, this can be done according to needs, whether and how many sensors are arranged in the electric motor, for example, temperature sensors and / or pressure sensors for the pumped medium.
  • the plug part 4 is floatingly held on the motor housing 2. It can thus be turned to the sides, i. slightly in a plane until it encounters a boundary. Furthermore, it is rotatable about a normal to this plane by a few degrees and may be slightly, i.e. be tilted by a few degrees, said normal is tilted to one side.
  • the plug part 4 on one side two adjacent, tongue-like projections 8 which are at least partially under a screw head 11. At the tongue-like projections 8 opposite side of the male part 4 are two
  • the plug-in region 3 further has a collar 7, which is integrally formed on the motor housing 2 and projects from its outer wall.
  • the collar 7 surrounds the
  • Plug part 4 at a distance and limits its lateral movement in the plane, i. in two directions of movement, namely with respect to a vertical motor axis horizontally and vertically.
  • the distance between the collar 7 and the plug part 4 on the parallel sides is about 0.5 mm, so that a total lateral movement of the plug part 4 of about 1 mm is possible.
  • the plug-in area 3 also has two guide bushes 17 for receiving
  • Mating plug portion 30 of the electronics housing 28 rests in the assembled state of the electronics housing 28.
  • Figure 2 shows a part of the electric motor 1 in an axial section through the
  • Plug-in area 3 The plug contacts 5, 6 of the plug part 4 are opposite to the Collar 7 before. They are at a height with guide bushings 17, of which only one can be seen in FIG. Between the guide bushings 17, a base 10 is integrally formed on the motor housing 2, in which a threaded bore 14 is provided. In the threaded hole 14, a screw 25 is received. The base 10 is extended in the axial direction by a truncated projection 15 and a projection 5 opposite bank-shaped support 26. The screw 25 is screwed so far into the thread guide 14, that they on the extension 15 and the
  • the extension 15 is located between the tongue-like projections 8 and has a height which is slightly greater than the height of the tongue-like projections 8, so that the projections are movable in a receiving space, through the base 10, the screw head 11 and laterally through the Wall of the guide bushes is limited.
  • the tongue-like projections 8 is the
  • Plug part 4 held on the inside of the collar 7 on the motor housing 2.
  • FIG. 2 shows that the plug part 4 has a hook-shaped projection 12 on the opposite side.
  • This projection 12 protrudes from the plug part 4 inwardly into the electric motor 1 and has at its radial end an angled leg which extends parallel to the motor housing 2 and engages under this.
  • the hook-shaped projection 12 limits the mobility of the male part 4 to the outside, i. in the direction of the above normals.
  • the lug-shaped projections 13 rest loosely, with the result that the motor housing 2 is located between these projections 13 and
  • hook-shaped projection 12 rests.
  • the collar 7 has with respect to its height in cross-section a first recess 9 and a second recess 20.
  • a sealing ring 21 is arranged, whose diameter is greater than the height of the second recess 20.
  • Figure 5 shows how the plug-in sleeve 31 engages around the region of the collar 7 between the first and the second recess 19, 20, wherein the sealing ring 21 sealingly between the collar 7 and the plug-in sleeve 31 is located.
  • Figures 3 and 4 show that the plug part 4 in a perspective view. It has a hollow base 16, from which the plug contacts 5, 6 protrude. The base 16 has about two-thirds of the height of the collar 7, so that the pivotability of the male part along the vertical axis is limited to a few degrees.
  • reinforcing ribs 9 which extend from a side wall to the opposite side wall of the base 16 and each between two power contacts 5 different phase, as well as between the power contacts 5 and 6 signal contacts.
  • Reinforcing ribs 9 thereby form an additional insulation and prevent

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)

Abstract

L'invention concerne un moteur électrique (1) servant à entraîner une pompe, notamment une pompe de recirculation pour des installations de chauffage, et comportant un carter de moteur (2) en métal et une zone de raccordement (3) qui comprend une partie fiche mâle (4) électrique à plusieurs broches de connexion (5,6) qui peuvent être enfichées dans des fiches femelles (29) d'une zone de raccordement complémentaire (30) d'un boîtier électronique (28) du moteur électrique (1). Selon l'invention, la partie fiche mâle (4) est maintenue de manière flottante sur le carter de moteur (2) de manière à permettre un montage aisé et sans endommagement du boîtier électronique (28) sur le moteur électrique (1).
PCT/EP2012/001128 2011-03-14 2012-03-14 Zone de raccordement électrique d'un moteur électrique Ceased WO2012123108A2 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102011013952.4A DE102011013952B4 (de) 2011-03-14 2011-03-14 Elektromotor
DE102011013952.4 2011-03-14

Publications (2)

Publication Number Publication Date
WO2012123108A2 true WO2012123108A2 (fr) 2012-09-20
WO2012123108A3 WO2012123108A3 (fr) 2013-04-25

Family

ID=45929489

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/EP2012/001128 Ceased WO2012123108A2 (fr) 2011-03-14 2012-03-14 Zone de raccordement électrique d'un moteur électrique

Country Status (2)

Country Link
DE (1) DE102011013952B4 (fr)
WO (1) WO2012123108A2 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110195707A (zh) * 2018-02-27 2019-09-03 戴博水泵股份有限公司 具有电力供应连接器的电泵组件
US11451111B2 (en) 2016-07-01 2022-09-20 Webasto SE Combination of motor casing and plug connection and dedicated motor casing
DE102021204922A1 (de) 2021-05-17 2022-11-17 Zf Friedrichshafen Ag Stator für eine elektrische Maschine und elektrische Maschine

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102013206032A1 (de) * 2013-04-05 2014-10-09 Robert Bosch Gmbh Elektronische Komponente für ein Kraftfahrzeug
DE202013009657U1 (de) * 2013-10-31 2015-02-03 Oerlikon Leybold Vacuum Gmbh Vakuumpumpe
DE102017112810A1 (de) * 2017-06-09 2018-12-13 Hefei Xinhu Canned Motor Pump Co.,Ltd Stator-Anschlusskasten-Einheit für eine elektrisch angetriebene Umwälzpumpe
DE102022107373A1 (de) * 2022-03-29 2023-10-05 KSB SE & Co. KGaA Pumpe mit Motorgehäuse und lösbar auf dem Motorgehäuse angeordneten Elektronikgehäuse

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007022070A1 (de) 2007-05-08 2008-11-13 Wilo Ag Elektromotor

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FR2639481B1 (fr) * 1988-11-21 1991-03-15 Peugeot Dispositif formant connecteur electrique
DE19624934A1 (de) 1996-06-21 1998-01-08 Richard Halm Naßläuferspaltrohrmotor für Pumpen
AT3851U1 (de) * 1997-11-18 2000-08-25 Atb Austria Antriebstechnik Ak Elektromotor mit klemmkasten
US6767246B2 (en) 2001-02-01 2004-07-27 Amphenol Corporation Snap-in relay socket system
ES2345235B1 (es) 2008-07-21 2011-08-17 Bsh Electrodomesticos España, S.A Carcasa termoaislante con paso de conducto.
DE102008050322B4 (de) 2008-10-04 2021-07-15 Te Connectivity Germany Gmbh Elektromotor-Anschluss sowie Elektromotor
DE102008058511A1 (de) 2008-11-21 2010-05-27 Kostal Industrie Elektrik Gmbh Frequenzumrichter zum Steuern eines Elektromotors
JP5315989B2 (ja) 2008-12-27 2013-10-16 トヨタ自動車株式会社 駆動ユニットの端子台構造

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102007022070A1 (de) 2007-05-08 2008-11-13 Wilo Ag Elektromotor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11451111B2 (en) 2016-07-01 2022-09-20 Webasto SE Combination of motor casing and plug connection and dedicated motor casing
CN110195707A (zh) * 2018-02-27 2019-09-03 戴博水泵股份有限公司 具有电力供应连接器的电泵组件
DE102021204922A1 (de) 2021-05-17 2022-11-17 Zf Friedrichshafen Ag Stator für eine elektrische Maschine und elektrische Maschine
WO2022243141A1 (fr) * 2021-05-17 2022-11-24 Zf Friedrichshafen Ag Stator pour une machine électrique et machine électrique

Also Published As

Publication number Publication date
DE102011013952B4 (de) 2023-12-07
WO2012123108A3 (fr) 2013-04-25
DE102011013952A1 (de) 2012-09-20

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