DE2923077B1 - Noise protection hood for electric motors - Google Patents
Noise protection hood for electric motorsInfo
- 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
Links
- 238000001816 cooling Methods 0.000 claims description 7
- 239000006260 foam Substances 0.000 claims description 4
- 239000002184 metal Substances 0.000 claims description 3
- 239000011358 absorbing material Substances 0.000 claims 1
- 230000001976 improved effect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 1
- 230000017525 heat dissipation Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; 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)
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)
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)
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)
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 |
-
1979
- 1979-06-07 DE DE2923077A patent/DE2923077B1/en active Granted
-
1980
- 1980-05-22 FR FR8011401A patent/FR2458929A1/en active Granted
- 1980-05-28 AT AT0282880A patent/AT365382B/en not_active IP Right Cessation
- 1980-05-28 NL NLAANVRAGE8003084,A patent/NL184819C/en not_active IP Right Cessation
- 1980-05-30 IT IT22472/80A patent/IT1131229B/en active
Cited By (3)
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 |