CH98162A - Splash-proof cover for covering side openings on electrical machines. - Google Patents

Splash-proof cover for covering side openings on electrical machines.

Info

Publication number
CH98162A
CH98162A CH98162DA CH98162A CH 98162 A CH98162 A CH 98162A CH 98162D A CH98162D A CH 98162DA CH 98162 A CH98162 A CH 98162A
Authority
CH
Switzerland
Prior art keywords
splash
electrical machines
motor
proof cover
side openings
Prior art date
Application number
Other languages
German (de)
Inventor
Cie Aktiengesellschaft Boveri
Original Assignee
Bbc Brown Boveri & Cie
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 Bbc Brown Boveri & Cie filed Critical Bbc Brown Boveri & Cie
Publication of CH98162A publication Critical patent/CH98162A/en

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
    • H02K5/10Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)

Description

  

  Spritzwasser-Schutzdeckel zur Abdeckung von seitlichen Öffnungen an elektrischen  Maschinen.    Während es bei der Abdeckung von Öff  nungen an elektrischen Maschinen, die gegen  Tropfwasser geschützt sind, lediglich darauf  ankommt, dass die Öffnungen gegen Wasser,  das von oben oder schräg von oben einzutreten  sucht, also nach oben hin, abgedeckt sind,  müssen bei der Aufgabe, die Maschinen auch  gegen anspritzendes Wasser zu schützen, die  Abdeckungen so angeordnet sein, dass auch  von der Seite oder von unten kein     Spritz-          wasser    in die Maschine eindringen kann.  



  Dies geschieht durch die bekannten  Schutzdeckel, die oben und am Seitenrand  anliegen und unten offen sind, nur in unvoll  kommener Weise. Nach der Erfindung soll  daher der Verschlussdeckel die Motoröffnung  nach unten überragen und sein unterer Rand  derart in der Richtung nach dem Motor hin  umgebogen oder eingezogen sein, dass der  etwa muschelförmige Deckel nur gegen die  Maschinenwände zu offen ist; aus der Motor  öffnung austretende Luft wird dadurch nahe  zu um 180  abgelenkt.  



  In der Zeichnung ist als Ausführungsbei-    spiel die seitliche Lüftungsöffnung eines  spritzwassergeschützten Drehstrommotors  dargestellt. Die Öffnung b liegt etwa in der  horizontalen Mittelebene des Motors a. Der  muschelartig geformte Deckel d von halb  ovalem Längsschnitt überragt die Öffnung b  nach unten und lässt infolge Umbiegens seines  unteren Randes c nach dem Motorgehäuse a  zu eine Öffnung e frei, die der Öffnung b ent  gegengerichtet ist. Aus dem Motor a austre  tende Luft erfährt, wie die Pfeillinie andeu  tet, eine Umlenkung von nahezu 180 . Seit  lich oder von unten anspritzendes Wasser  kann nicht in die Öffnung b hineingelangen.  



  In gleicher Weise kann die Klemmen  öffnung abgedeckt werden.



  Splash-proof cover for covering side openings on electrical machines. When covering openings on electrical machines that are protected against dripping water, the only thing that matters is that the openings are covered against water that tries to enter from above or at an angle from above, i.e. towards the top To protect the machine against splashing water, the covers should be arranged in such a way that no splash water can penetrate the machine from the side or from below.



  This is done by the well-known protective cover, which rest on top and on the side edge and are open at the bottom, only in an imperfect manner. According to the invention, therefore, the closure cover should protrude downward over the motor opening and its lower edge should be bent or drawn in in the direction towards the motor in such a way that the roughly shell-shaped cover is only open against the machine walls; Air exiting the motor opening is thereby deflected by almost 180.



  In the drawing, the side ventilation opening of a splash-proof three-phase motor is shown as an exemplary embodiment. The opening b lies approximately in the horizontal center plane of the motor a. The shell-like shaped cover d of a semi-oval longitudinal section protrudes over the opening b downwards and, as a result of the bending over of its lower edge c to the motor housing a, leaves an opening e free which is opposite to the opening b. As the arrow line indicates, air emerging from the motor is deflected by almost 180. Water sprayed from the side or from below cannot get into opening b.



  The terminal opening can be covered in the same way.

 

Claims (1)

PATENTANSPRUCH: Spritzwasser - Schutzdeckel zur Abdek- kung von seitlichen Öffnungen an elektri schen Maschinen, dadurch gekennzeichnet, dass der Verschlussdeckel die Motoröffnung nach unten überragt und dass sein unterer Rand in der Richtung nach dem Motor hin derart umgebogen ist, dass der Deckel eine musehelartige Form erhält, die nur gegen die Maschinenwände zu offen ist, wodurch die aus der Motoröffnung austretende Luft nahe zu um 180 abgelenkt wird. PATENT CLAIM: Splash water protective cover for covering lateral openings on electrical machines, characterized in that the closure cover protrudes downward over the motor opening and that its lower edge is bent over in the direction towards the motor in such a way that the cover has a shell-like shape which is only too open against the machine walls, as a result of which the air exiting the motor opening is deflected by almost 180.
CH98162D 1921-10-15 1921-10-15 Splash-proof cover for covering side openings on electrical machines. CH98162A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH98162T 1921-10-15

Publications (1)

Publication Number Publication Date
CH98162A true CH98162A (en) 1923-03-01

Family

ID=4355953

Family Applications (1)

Application Number Title Priority Date Filing Date
CH98162D CH98162A (en) 1921-10-15 1921-10-15 Splash-proof cover for covering side openings on electrical machines.

Country Status (1)

Country Link
CH (1) CH98162A (en)

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