DE1920079U - OPEN ELECTRIC MACHINE OF PROTECTION CLASS P22. - Google Patents

OPEN ELECTRIC MACHINE OF PROTECTION CLASS P22.

Info

Publication number
DE1920079U
DE1920079U DES51847U DES0051847U DE1920079U DE 1920079 U DE1920079 U DE 1920079U DE S51847 U DES51847 U DE S51847U DE S0051847 U DES0051847 U DE S0051847U DE 1920079 U DE1920079 U DE 1920079U
Authority
DE
Germany
Prior art keywords
protection class
electric machine
open electric
protection
end shield
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.)
Expired
Application number
DES51847U
Other languages
German (de)
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.)
Siemens AG
Original Assignee
Siemens AG
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 Siemens AG filed Critical Siemens AG
Priority to DES51847U priority Critical patent/DE1920079U/en
Publication of DE1920079U publication Critical patent/DE1920079U/en
Expired legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/12Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
    • H02K5/136Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas explosion-proof
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16PSAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P1/00Safety devices independent of the control and operation of any machine
    • F16P1/02Fixed screens or hoods
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16PSAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/02Screens or other safety members moving in synchronism with members which move to and fro
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/04Casings or enclosures characterised by the shape, form or construction thereof
    • H02K5/20Casings or enclosures characterised by the shape, form or construction thereof with channels or ducts for flow of cooling medium
    • H02K5/207Casings 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

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Power Engineering (AREA)
  • Air-Flow Control Members (AREA)
  • Separating Particles In Gases By Inertia (AREA)

Description

RA. 121903*-9.3.65RA. 121903 * -9.3.65

icigljiciglj

ISMEN3-SCHüCKERTWERKE Erlangen, °ISMEN3-SCHüCKERTWERKE Erlangen, °

Aktiengesellschaft Werner-von-Siemena-Str, 50Aktiengesellschaft Werner-von-Siemena-Str, 50

PIA65/1105PIA65 / 1105

PLA 9/315/624PLA 9/315/624

Offene elektrische Maschine der Schutzart P 22Open electrical machine of protection type P 22

Für offene elektrische Maschinen der Schutzart P 22 wird verlangt, daß stromführende elektrische Teile im Inneren der Maschine vor öpritzwioser aus senkrechter Richtung und aus schrägen Richtungen bis herunter za 30° über der Waagerechten geschützt sind. Aus diesem Grund versah man bisher derartige Maschinen entweder mit im Lagerschild jalousieartig angeordneten Lufteintrittsschlitzen oder überhaupt nur im unteren Lagerschildteil vorgesehenen Luftschlitzen. .Derartige Luft schlitze sind in beiden Lagerschilden notwendig, da die Maschinen' innen belüftet sind. Der Nachteil dieser beiden Ausführungsarten ist nun, daß bei Drehung des Motors um seine Längsachse die Bedingungen der Schutzart P 22 nicht mehr erfüllt sind, da sowohl bei nur unten offenem Lagerschild als auch bei jalousieartigen Luftschiitzen Spritzwasser von oben eindringen und elektrischFor open electrical machines of the protection P 22 is required to live electrical parts inside the machine are protected from öpritzwioser from the vertical direction and in oblique directions to shut za 30 ° to the horizontal. For this reason, machines of this type have hitherto been provided either with air inlet slots arranged in the form of louvers in the end shield or with air slots only provided in the lower end shield part. Such air slots are necessary in both end shields because the machines are ventilated on the inside. The disadvantage of these two types of construction is that when the motor rotates around its longitudinal axis, the requirements of protection class P 22 are no longer met, since spray water penetrates from above and electrically both with the end shield only open at the bottom and with louvre-like air slides

- 1 _ Le/Mo.- 1 _ Le / Mon.

65/110565/1105

leitende Teile erreichen kann. Andererseits ist es aber für verschiedene Zwecke notwendig, einen Motor der in Präge stehenden Art oft bis um 360° um seine Achse gedreht zu verwenden bzw. einzubauen. Dies würde bei Motoren mit den vorgenannten Lufteintrittsöffnungen eine Ummontage erfordern, die zusätzlichen Aufwand und Kosten mit sich bringt.can reach conductive parts. On the other hand, it is for different people Purposes necessary to have a motor of the kind in stamp often to use or to install rotated by 360 ° around its axis. This would be the case with engines with the aforementioned air inlet openings require re-assembly, which entails additional effort and costs.

Die Neuerung setzt sich deshalb die Aufgabe, einen Lagerschild für solche Motoren zu schaffen, welcher in jeder Lage des Motors bezüglich einer Drehung um seine Längsachse die Erfordernisse der Schutzart P 22 erfüllt. Sie erreicht dies dadurch, daß die Lagerschilde mit ringförmigen Luftein- bzw. -austrittsöffnungen versehen sind, die zwischen parallel zur Maschinenachse umlaufenden Rippen angeordnet sind. Gleichzeitig ist an der Innenseite des Lagerschildes ein Luftleitblech vorgesehen. Die genannten Rippen sind so ausgebildet, daß in Verbindung mit dem Luftleitblech die stromführenden elektrischen Teile der Maschine vor Spritzwasser aus senkrechter Richtung und aus schrägen Richtungen bis herunter zu 30 über der Waagerechten geschützt werden. Der Motor läßt sich nun um jede beliebige Gradzahl um seine Achse drehen, ohne daß die Gefahr besteht, daß Spritzwasser aus in den obengenannten Richtungen stromführende Teile im Motorinneren erreichen kann.The innovation therefore sets itself the task of a bearing shield for to create such motors, which in every position of the motor with respect to a rotation about its longitudinal axis, the requirements of Degree of protection P 22 fulfilled. You achieve this in that the end shields are provided with annular air inlet and outlet openings which are arranged between ribs running parallel to the machine axis. At the same time is on the inside of the An air baffle is provided on the end shield. Said ribs are designed so that in connection with the air baffle the Live electrical parts of the machine from splashing water from a vertical direction and from oblique directions down to the bottom to be protected at 30 above the horizontal. The engine can now rotate around its axis by any number of degrees without the There is a risk that splash water can reach parts inside the motor that are live in the directions mentioned above.

Die Zeichnung zeigt ein Ausführungsbeispiel des neuerungsgemäßen Motorlagerschildes, und zwar in Pig. 1 im Schnitt und in Fig. 2 in Ansicht von vorn.The drawing shows an embodiment of the innovation according to the invention Engine end shield, in Pig. 1 in section and in Fig. 2 in Front view.

Der Lagerschild ist mit 1 bezeichnet und besitzt in bekannter Weise eine Wabe 2 für die Aufnahme des Welleniagers. Um den Lagerschild-The end shield is denoted by 1 and has in a known manner a honeycomb 2 for receiving the shaft bearing. To the end shield

- 2 - Le/Mo.- 2 - Wed / Mon.

65/110565/1105

körper 1 verlaufen Konzentrische Ringe 3, die durch Querstege 4 untereinander umd mit dem Lagerschildkörper 1 verbunden sind. Der äußere Ring 3' bildet gleichzeitig den gegen das Maschinengehäuse anliegenden äußeren Rand des Lagerschildes. Zwischen den einzelnen rfingen 3 befinden sich ringförmige Luftein- bzw. -austrittsöffnungen 5. 6 ist ein" an der Innenseite des Lagerschildes vorgesehenes Luftleitblech .Body 1 run concentric rings 3, which are connected to one another and to the end shield body 1 by transverse webs 4. the outer ring 3 'simultaneously forms the outer edge of the end shield resting against the machine housing. Between each Rings 3 are ring-shaped air inlet and outlet openings 5. 6 is an "air baffle" provided on the inside of the end shield.

Die runge 3 sind so ausgebildet, daß aus senkrechter oder aus einer schrägen Richtung bis herunter zu 30 - wie durch die Pfeile angedeutet - auftreffenües Spritzwasser nicht unmittelbar die hinter dem Lagerschild liegenden stromführenden Teil der Maschine erreichen kann. Dies ist, wie aus der zeichnung ohne weiteres ersichtlich, bei jeder Drehung der Maschine um ihre Längsachse bis zu 360° der Pali. .The stanchion 3 are designed so that from a vertical or from a inclined direction down to 30 - as indicated by the arrows - splash water does not hit directly behind the Bearing shield can reach the live part of the machine. As can be seen from the drawing, this is with every rotation of the machine around its longitudinal axis up to 360 ° of the Pali. .

Ein zusätziicüer Vorteil ist, hier noch dadurch gegeben, daß die Luft am ganzen Umfang dem Lüfter zugeführt werden kann und damit eine gleichmäßige Lüfterbeaufschlagung erfolgt.An additional advantage is given here by the fact that the Air can be fed to the fan over the entire circumference and thus an even fan admission takes place.

2 Figuren
2 Ansprüche
2 figures
2 claims

- 3 - Le/Mo.- 3 - Wed / Mon.

Claims (1)

65/1105 PLA 9/315/624 ■ ... Schutzansprüche:65/1105 PLA 9/315/624 ■ ... Protection claims: 1. Offene elektrische Maschine der Schutzart P 22, dadurch gekennzeichnet, da(3 die Lagerschilde mit ringförmigen Luftein- bzw. -austrittsöffnungen (5) versehen sind, die zwischen parallel zur Maschinenachse umlaufenden Rippen (}) angeordnet sind.1. Open electrical machine of protection class P 22, characterized in that (3 the end shields are provided with annular air inlet and outlet openings (5) which are arranged between ribs (}) running parallel to the machine axis. Ί. Offene elektrische Maschine nach Anspruch 1, dadurch gekennzeichnet, daß an der Innenseite der Lagerschilde in an sich bekannter Weise ein Luftleifblech (6) vorgesehen ist. Ί. Open electrical machine according to Claim 1, characterized in that an air deflector plate (6) is provided on the inside of the end shields in a manner known per se. - 4 - Le/Mo.- 4 - Wed / Mon.
DES51847U 1965-03-09 1965-03-09 OPEN ELECTRIC MACHINE OF PROTECTION CLASS P22. Expired DE1920079U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DES51847U DE1920079U (en) 1965-03-09 1965-03-09 OPEN ELECTRIC MACHINE OF PROTECTION CLASS P22.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DES51847U DE1920079U (en) 1965-03-09 1965-03-09 OPEN ELECTRIC MACHINE OF PROTECTION CLASS P22.

Publications (1)

Publication Number Publication Date
DE1920079U true DE1920079U (en) 1965-07-22

Family

ID=33380312

Family Applications (1)

Application Number Title Priority Date Filing Date
DES51847U Expired DE1920079U (en) 1965-03-09 1965-03-09 OPEN ELECTRIC MACHINE OF PROTECTION CLASS P22.

Country Status (1)

Country Link
DE (1) DE1920079U (en)

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