DE447853C - Protective cage for fans with rheostat - Google Patents

Protective cage for fans with rheostat

Info

Publication number
DE447853C
DE447853C DEM95547D DEM0095547D DE447853C DE 447853 C DE447853 C DE 447853C DE M95547 D DEM95547 D DE M95547D DE M0095547 D DEM0095547 D DE M0095547D DE 447853 C DE447853 C DE 447853C
Authority
DE
Germany
Prior art keywords
protective cage
rheostat
fans
attached
insulating ring
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
DEM95547D
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.)
Individual
Original Assignee
Individual
Publication date
Priority to DEM95547D priority Critical patent/DE447853C/en
Application granted granted Critical
Publication of DE447853C publication Critical patent/DE447853C/en
Expired 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
    • F04D—NON-POSITIVE-DISPLACEMENT PUMPS
    • F04D29/00—Details, component parts, or accessories
    • F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
    • F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
    • F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Control Of Positive-Displacement Air Blowers (AREA)
  • Details Of Resistors (AREA)

Description

Schutzkorb für Ventilatoren mit Regelwiderstand. Im nachstehenden wird eine neue Erfindung, ein Schutzkorb mit Regelwiderstand für Tisch-, Wand- und Fassungsventilatoren, beschrieben und dargestellt, welcher so ausgebildet ist, daß die Regelung der Umdrehungen durch einen im Schutzkorb angebrachten Regelwiderstand erfolgt, und daß die Widerstandsdrähte durch die Flügel des Ventilators gekühlt werden.Protective cage for fans with rheostat. In the following is a new invention, a protective cage with rheostat for table, wall and Version fans, described and shown, which is designed so that the regulation of the revolutions by a rheostat installed in the protective cage takes place, and that the resistance wires are cooled by the blades of the fan will.

In A.bb. a bis 6 wird ein solcher Schutzkorb beispielsweise dargestellt, welcher -an verschiedenen Ventilatoren angebracht ist.In A.bb. a to 6 such a protective cage is shown, for example, which is attached to different fans.

Ein Isolierring a, welcher mit Widerstandsdraht bewickelt ist, wird von einen mit öffnungen versehenen Metallring b gehalten. An der einen Seite sind am Metallring Befestigungsenden c, cl, c2, welche am Ventilaa tor befestigt werden können, angebracht, an der anderen Seite über Kreuz führende Schutzstreben. In der Mitte des Schutzkorbes ist ein Isolierkörper d (Abb. 5 und 6) befestigt, nach welchem die verschiedenen Drähte zum Regeln der Umdrohungen zusammenlaufen. Der Isolierkörper d weist an seiner inneren Seite Metallamellen e, e1; e2, e5, e4 auf, an welchen die vom Isolierring abgeleiteten Drähte befestigt werden. Auf diesen Metallamellen schleift eine Feder f, welche durch den Knebel g gedreht werden kann und die Einschaltung eines höheren oder niedrigeren Widerstandes ermöglicht. Der Motor, welcher die Flügel des Ventilators antreibt, ist mit dem Isolierring und Widerstand durch ein Kabel h (Abb. a) verbunden, und die einzelnen Verbindungsdrähte vom Isolierring zum Drehschalter d sind an den Streben il, i2, i', il befestigt. Der Isolierring, auf welchem sich die Widerstandsdrähte befinden, wird durch den vom Ventilator erzeugten Luftstrom gekühlt, und die Lebensdauer des Widerstandsdrahtes ist dadurch verlängert. Die Einstellung der Umdrehungszahl ist einfach, da dieselbe von vorn am -Schutzkorb vorgenommen werden kann. Die Einrichtung kann an jedem Ventilatmr angebracht werden.An insulating ring a, which is wound with resistance wire, is held by a metal ring b provided with openings. On one side of the metal ring attachment ends c, cl, c2, which can be attached to the Ventilaa gate, attached, on the other side cross-leading protective struts. In the middle of the protective cage, an insulating body d (Fig. 5 and 6) is attached, after which the various wires converge to regulate the threats. The insulating body d has metal lamellae e, e1; e2, e5, e4, to which the wires derived from the insulating ring are attached. A spring f grinds on these metal slats, which can be turned by the toggle g and enables a higher or lower resistance to be switched on. The motor, which drives the blades of the fan, is connected to the insulating ring and resistor by a cable h (Fig. A), and the individual connecting wires from the insulating ring to the rotary switch d are attached to the struts il, i2, i ', il. The insulating ring, on which the resistance wires are located, is cooled by the air flow generated by the fan, and the service life of the resistance wire is extended as a result. Setting the number of revolutions is easy as it can be done from the front of the protective cage. The device can be attached to any ventilator.

Claims (3)

1'nTKeN'rnNSPi<üCiiE: z. Schutzkorb für Ventilatoren mit Regelwiderstand, dadurch gekennzeichnet, daß der Regelwiderstand auf dem Schutzkorb angebracht ist. 1'nTKeN'rnNSPi <üCiiE: z. Protective cage for fans with rheostat, characterized in that the rheostat is attached to the protective cage. 2. Schutzkorb nach Anspruch r, gekennzeichnet durch einen Isolierring als Träger der Widerstandswicklung, der von einem mit Luftdurchlaßöffnungen versehenen Ring gehalten wird. 2. Protective cage according to claim r, characterized by an insulating ring as a carrier the resistance winding, that of a ring provided with air passage openings is held. 3. Schutzkorb nach Anspruch r und 2, dadurch gekennzeichnet, daß an der Vorderseite die Regelvorrichtung angeordnet ist, zu, welcher die Drähte der einzelnen Stufen vom Isolierring geführt sind.3. Protective cage according to claim r and 2, characterized in that at the front the control device is arranged, to which the wires of the individual stages are guided by the insulating ring.
DEM95547D Protective cage for fans with rheostat Expired DE447853C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEM95547D DE447853C (en) Protective cage for fans with rheostat

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEM95547D DE447853C (en) Protective cage for fans with rheostat

Publications (1)

Publication Number Publication Date
DE447853C true DE447853C (en) 1927-07-29

Family

ID=7323031

Family Applications (1)

Application Number Title Priority Date Filing Date
DEM95547D Expired DE447853C (en) Protective cage for fans with rheostat

Country Status (1)

Country Link
DE (1) DE447853C (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304040A (en) * 1991-07-08 1994-04-19 Duracraft Corporation Tri-pod portable fan

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5304040A (en) * 1991-07-08 1994-04-19 Duracraft Corporation Tri-pod portable fan
US5391056A (en) * 1991-07-08 1995-02-21 Duracraft Corporation Tri-pod portable fan

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