DE2923077B1 - Noise protection hood for electric motors - Google Patents

Noise protection hood for electric motors

Info

Publication number
DE2923077B1
DE2923077B1 DE2923077A DE2923077A DE2923077B1 DE 2923077 B1 DE2923077 B1 DE 2923077B1 DE 2923077 A DE2923077 A DE 2923077A DE 2923077 A DE2923077 A DE 2923077A DE 2923077 B1 DE2923077 B1 DE 2923077B1
Authority
DE
Germany
Prior art keywords
electric motor
soundproofing element
electric motors
tubular
noise protection
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.)
Granted
Application number
DE2923077A
Other languages
German (de)
Other versions
DE2923077C2 (en
Inventor
Arthur Schmitt
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.)
KSB SE and Co KGaA
Original Assignee
Klein Schanzlin and Becker 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 Klein Schanzlin and Becker AG filed Critical Klein Schanzlin and Becker AG
Priority to DE2923077A priority Critical patent/DE2923077B1/en
Priority to FR8011401A priority patent/FR2458929A1/en
Priority to NLAANVRAGE8003084,A priority patent/NL184819C/en
Priority to AT0282880A priority patent/AT365382B/en
Priority to IT22472/80A priority patent/IT1131229B/en
Publication of DE2923077B1 publication Critical patent/DE2923077B1/en
Application granted granted Critical
Publication of DE2923077C2 publication Critical patent/DE2923077C2/de
Granted legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02KDYNAMO-ELECTRIC MACHINES
    • H02K5/00Casings; Enclosures; Supports
    • H02K5/24Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations

Landscapes

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

Description

Die Erfindung betrifft eine Schallschutzhaube für oberflächengekühlte Elektromotoren, deren Wand aus mindestens einer tragenden, aus Blech oder Kunststoff hergestellten, und mindestens einer aus einem schallabsorbierenden Material gebildeten Schicht besteht.The invention relates to a soundproof hood for surface-cooled electric motors, the wall of which is made of at least one load-bearing, made of sheet metal or plastic, and at least one of a sound-absorbing one Material formed layer consists.

Schallschutzhauben für Elektromotoren sind in vielerlei Ausführungen seit langem bekannt. Bisher wurden Schallschutzhauben meist ohne Berührung mit den abzuschirmenden Elektromotoren angeordnet. Sie wurden über die Motoren gestülpt und mit dem Fußboden oder der dem Elektromotor benachbarten Raumwand verbunden. Diese, eigene Abstützungen erfordernde Aufstellungsart der Schallschutzhauben ist aber wegen Platzmangels oft nicht möglich. Vor allem die nachträgliche Anbringung solcher Schallschutzhauben in bereits bestehenden Anlagen erfordert meist einen recht hohen Aufwand, wenn sie nicht gänzlich scheitert.Soundproof hoods for electric motors have long been known in many designs. Until now Soundproof hoods were usually arranged without touching the electric motors to be shielded. she were placed over the motors and with the floor or the one next to the electric motor Room wall connected. This type of installation of the noise protection hoods, which requires its own supports but often not possible due to lack of space. Above all, the subsequent attachment of such noise protection hoods in existing systems usually requires a lot of effort, if not completely fails.

Der Erfindung liegt die Aufgabe zugrunde, eine Schallschutzhaube für oberflächengekühlte Elektromotoren zu schaffen, die mit wenig Aufwand und geringem Platzbedarf auch bei bereits installierten Elektromotoren anbringbar ist.The invention is based on the object of providing a soundproof hood for surface-cooled electric motors to create that with little effort and little space requirement even with already installed electric motors is attachable.

Diese Aufgabe wird erfindungsgemäß durch eine dem Patentanspruch entsprechend gestaltete Schallschutzhaube gelöst.This object is achieved according to the invention by means of a soundproof hood designed in accordance with the patent claim solved.

Die Montage der erfindungsgemäßen Schallschutzhaube ist sehr einfach. Diese braucht lediglich über den Motor geschoben zu werden. Aufgrund des geringen Untermaßes der Schaumstoffauskleidung des rohrförmigen Schallschutzelementes sitzt die Schallschutzhaube klemmend auf den Kühlrippen des Motors auf. Diese Verbindung ist, da sie keiner weiteren Belastung unterworfen ist, ausreichend fest. Die enge Umschließung der Motoraußenkontur durch das rohrförmige Schallschutzelement, durch die jeweils zwischen den Rippen gelegene Kühlkanäle gebildet werden, bewirkt eine gegenüber einem freiliegenden Motor verbesserte Luftführung und damit eine verbesserte Wärmeabfuhr. Die durch die Isolierwirkung des inneren Schallschutzelementes behinderte Wärmeabstrahlung wird somit ohne weiteres kompensiert.The assembly of the soundproof hood according to the invention is very simple. This only needs via the Engine to be pushed. Due to the small undersize of the foam lining of the tubular With the soundproofing element, the soundproof hood sits tightly on the cooling fins of the motor. These Since it is not subjected to any further stress, the connection is sufficiently strong. The tight enclosure the outer contour of the engine through the tubular soundproofing element, through which each between the Cooling channels located in the ribs are formed, results in an improved effect compared to an exposed engine Air flow and thus improved heat dissipation. The through the insulating effect of the inner soundproofing element hindered heat radiation is thus easily compensated for.

Anhand eines Ausführungsbeispiels wird die Erfindung näher erläutert. Die Zeichnung zeigt einen Elektromotor mit einer erfindungsgemäßen Schallschutzhaube in Schnittdarstellung.The invention is explained in more detail using an exemplary embodiment. The drawing shows one Electric motor with a soundproof hood according to the invention in a sectional view.

Auf die Kühlrippen des Elektromotors 1 ist ein rohrförmiges Schallschutzelement 2 klemmend aufgeschoben. Das rohrförmige Schallschutzelement 2 wiederum trägt ein topfförmiges äußeres Schallschutzelement 3, welches mit Hilfe von Abstandshaltern 4, die über den Umfang gleichmäßig verteilt sind, am Schallschutzelement 2 befestigt ist.A tubular soundproofing element 2 is pushed onto the cooling fins of the electric motor 1 in a clamping manner. The tubular soundproofing element 2 in turn carries a cup-shaped outer soundproofing element 3, which with the help of spacers 4, which are evenly distributed over the circumference, on Soundproofing element 2 is attached.

Beide Schallschutzelemente 2, 3 bestehen aus einem tragenden Blechmantel 5 bzw. 6 und einer dicken Innenschicht 7 bzw. 8 aus offenporigem Schaumstoff. Die Federungseigenschaften des Schaumstoffes und die große Reibungsziffer bewirken einen festen Sitz der Schallschutzhaube auf dem Elektromotor 1.Both soundproofing elements 2, 3 consist of a load-bearing sheet metal jacket 5 or 6 and a thick inner layer 7 or 8 made of open-cell foam. The cushioning properties of the foam and the large coefficient of friction ensure that the soundproof hood sits securely on the electric motor 1.

Damit sich die Schallschutzhaube von der Lüfterseite her über den Elektromotor 1 schieben läßt, ist eine Ausnehmung von der Breite des Klemmenkastens 9 im inneren, rohrförmigen Schallschutzelement 2 vorgesehen. Die Kühlluft tritt über die ringförmige Schalldämpferstrecke zwischen innerem und äußerem Schallschutzelement 2,3 ein, wird zweimal umgelenkt, durchtritt das unverändert belassene Lüftungsgitter 10 des Elektromotors 1, passiert das Lüfterrad 11, strömt über die Außenverrippung des Elektromotors 1 und verläßt diesen an der Antriebsseite.So that the soundproof hood can be pushed over the electric motor 1 from the fan side, is one Recess of the width of the terminal box 9 is provided in the inner, tubular soundproofing element 2. The cooling air passes through the ring-shaped silencer section between the inner and outer soundproofing element 2,3 a, is deflected twice, passes through the unchanged ventilation grille 10 of the electric motor 1, passes the fan wheel 11, flows over the outer ribs of the electric motor 1 and leaves this on the drive side.

Hierzu 1 Blatt Zeichnungen.1 sheet of drawings.

ORIGINAL INSPECTEDORIGINAL INSPECTED

Claims (1)

Patentanspruch:Claim: Schallschutzhaube für oberflächengekühlte Elektromotoren, deren Wand aus mindestens einer tragenden, aus Blech oder Kunststoff hergestellten, und mindestens einer aus einem schallabsorbierenden Material gebildeten Schicht besteht, gekennzeichnet durch ein erstes, rohrförmiges, auf die Kühlrippen des Elektromotors (1) aufschiebbares Schallschutzelement (2), welches auf seiner Innenseite ausgekleidet ist mit einer Schaumstoffschicht (7), deren Innenmaß geringfügig unter dem Außenmaß der Kühlrippen des Elektromotors (1) liegt, wobei in diesem Schallschutzelement (2) eine Ausnehmung für den Klemmenkasten (9) des Elektromotors (1) vorgesehen ist, und ein zweites, topfförmiges Schallschutzelement (3), welches unter Belassung eines für die Kühlluftführung angemessenen Strömungsweges die Stirnseite des Elektromotors (1) und einen Teil des rohrförmigen Schallschutzelementes (2) umschließt.Soundproof hood for surface-cooled electric motors, the wall of which consists of at least one load-bearing, made of sheet metal or plastic, and at least one of a sound-absorbing Material formed layer consists, characterized by a first, tubular, on the Cooling ribs of the electric motor (1) slide-on soundproofing element (2), which on its inside is lined with a foam layer (7), the inner dimension of which is slightly below the outer dimension of the cooling ribs of the electric motor (1), with a recess in this soundproofing element (2) for the terminal box (9) of the electric motor (1) is provided, and a second, cup-shaped Soundproofing element (3), which while leaving a flow path appropriate for the cooling air duct the end face of the electric motor (1) and part of the tubular soundproofing element (2) encloses.
DE2923077A 1979-06-07 1979-06-07 Noise protection hood for electric motors Granted DE2923077B1 (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
DE2923077A DE2923077B1 (en) 1979-06-07 1979-06-07 Noise protection hood for electric motors
FR8011401A FR2458929A1 (en) 1979-06-07 1980-05-22 Electric motor sound-proofing unit - includes foam-lined shell over motor fins and a pot shaped hood pushed over it
NLAANVRAGE8003084,A NL184819C (en) 1979-06-07 1980-05-28 SOUND INSULATING COVER FOR A SURFACE-COOLED ELECTRIC MOTOR.
AT0282880A AT365382B (en) 1979-06-07 1980-05-28 SOUND PROTECTION COVER FOR ELECTRIC MOTORS
IT22472/80A IT1131229B (en) 1979-06-07 1980-05-30 SOUND INSULATION HOOD FOR ELECTRIC MOTORS

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE2923077A DE2923077B1 (en) 1979-06-07 1979-06-07 Noise protection hood for electric motors

Publications (2)

Publication Number Publication Date
DE2923077B1 true DE2923077B1 (en) 1980-08-21
DE2923077C2 DE2923077C2 (en) 1987-10-22

Family

ID=6072678

Family Applications (1)

Application Number Title Priority Date Filing Date
DE2923077A Granted DE2923077B1 (en) 1979-06-07 1979-06-07 Noise protection hood for electric motors

Country Status (5)

Country Link
AT (1) AT365382B (en)
DE (1) DE2923077B1 (en)
FR (1) FR2458929A1 (en)
IT (1) IT1131229B (en)
NL (1) NL184819C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112591A1 (en) * 1981-03-30 1982-10-14 Nixdorf Computer Ag, 4790 Paderborn SOUND-INSULATING HOUSING AND METHOD FOR THE PRODUCTION THEREOF
DE3417189A1 (en) * 1984-05-09 1985-11-14 Siemens AG, 1000 Berlin und 8000 München Noise-reducing cladding for a rib-cooled electrical machine
DE4301744A1 (en) * 1993-01-23 1994-07-28 Teves Gmbh Alfred Electric motor for auxiliary devices on motor vehicles

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4321216A1 (en) * 1993-06-25 1995-01-19 Omega Haushaltsgeraete Gmbh & Motor and component mounting for electrical appliances, in particular vacuum cleaners

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1763478U (en) * 1955-07-23 1958-03-20 Siemens Schukkertwerke Ag INTERNALLY COOLED ELECTRIC MACHINE.
DE1126498B (en) * 1960-11-10 1962-03-29 Bbc Brown Boveri & Cie Cooling arrangement for closed, surface-cooled electrical machines, especially for the drive of loading winches on ships
DE1984788U (en) * 1965-07-30 1968-05-02 Siemens Ag SOUND-INSULATING HOOD FOR HEAT-GENERATING ACOUSTIC EMISSIONS.
DE1909264B2 (en) * 1969-02-25 1972-06-22 Siemens AG, 1000 Berlin u 8000 München VIBRATION-CUSHIONED BRACKET FOR MOTORS
DE7514248U (en) * 1975-05-02 1975-09-04 Hollmann Kg Weld-in shrink sleeve for mailing magazines, magazines, catalogs and the like.
US3980912A (en) * 1975-05-27 1976-09-14 Lord Corporation Silencer for a fan-cooled electric motor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3112591A1 (en) * 1981-03-30 1982-10-14 Nixdorf Computer Ag, 4790 Paderborn SOUND-INSULATING HOUSING AND METHOD FOR THE PRODUCTION THEREOF
DE3417189A1 (en) * 1984-05-09 1985-11-14 Siemens AG, 1000 Berlin und 8000 München Noise-reducing cladding for a rib-cooled electrical machine
DE4301744A1 (en) * 1993-01-23 1994-07-28 Teves Gmbh Alfred Electric motor for auxiliary devices on motor vehicles

Also Published As

Publication number Publication date
NL184819B (en) 1989-06-01
NL8003084A (en) 1980-12-09
AT365382B (en) 1982-01-11
DE2923077C2 (en) 1987-10-22
IT8022472A0 (en) 1980-05-30
IT1131229B (en) 1986-06-18
ATA282880A (en) 1981-05-15
NL184819C (en) 1989-11-01
FR2458929A1 (en) 1981-01-02
FR2458929B1 (en) 1983-08-26

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Legal Events

Date Code Title Description
8281 Inventor (new situation)

Free format text: SCHMITT, ARTHUR, 6084 GERNSHEIM, DE

8327 Change in the person/name/address of the patent owner

Owner name: KSB AG, 6710 FRANKENTHAL, DE

8339 Ceased/non-payment of the annual fee