EP2962318B1 - Electrical device, in particular converter, having a housing part and a switching unit - Google Patents

Electrical device, in particular converter, having a housing part and a switching unit Download PDF

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Publication number
EP2962318B1
EP2962318B1 EP14705035.5A EP14705035A EP2962318B1 EP 2962318 B1 EP2962318 B1 EP 2962318B1 EP 14705035 A EP14705035 A EP 14705035A EP 2962318 B1 EP2962318 B1 EP 2962318B1
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EP
European Patent Office
Prior art keywords
rotary knob
switching unit
sealing ring
connecting part
electrical device
Prior art date
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Application number
EP14705035.5A
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German (de)
French (fr)
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EP2962318C0 (en
EP2962318A1 (en
Inventor
Martin SCHÖRNER
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.)
SEW Eurodrive GmbH and Co KG
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SEW Eurodrive GmbH and Co KG
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Application filed by SEW Eurodrive GmbH and Co KG filed Critical SEW Eurodrive GmbH and Co KG
Publication of EP2962318A1 publication Critical patent/EP2962318A1/en
Application granted granted Critical
Publication of EP2962318C0 publication Critical patent/EP2962318C0/en
Publication of EP2962318B1 publication Critical patent/EP2962318B1/en
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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/02—Details
    • H01H19/04—Cases; Covers
    • H01H19/06—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings

Definitions

  • the invention relates to an electrical device, in particular a converter, with a housing part and a switching unit.
  • a switching unit can be used to switch an electrical device on or off.
  • the switching unit is used as an electrical switch.
  • the invention is therefore based on the object of developing an electrical device in a simple manner, whereby as few parts as possible are to be used and the device can be designed with a high degree of protection.
  • the object is achieved in the electrical device according to the features specified in claim 1.
  • a rotary knob for operating a switching unit is connected in a rotationally fixed manner to a connecting part, wherein the connecting part is connected to the switching unit in a rotationally fixed manner, wherein the connecting part is connected to the rotary knob in a latched manner, in particular by means of a latching lug, the rotary knob is rotatably mounted on a housing part, wherein the connecting part has a disk-like section which presses a sealing ring onto the housing part.
  • the advantage here is that a high degree of protection is achieved with just a few parts.
  • no locking ring is necessary, as the disk-like section acts as an axial limit and pressure surface for the sealing ring, pressing it against the housing part.
  • This also makes assembly easy.
  • the parts can be manufactured as injection-molded parts and can be supported on plain bearings, which means that other components such as bearings or the like are not required.
  • the connecting part is connected in a rotationally fixed manner in a receiving recess of the switching unit, in particular for actuating the switching unit.
  • the advantage here is that the switching unit can be actuated from the other side of the housing wall by a rotary knob being connected in a rotationally fixed manner via the connecting part and the actuation, i.e. setting the rotary position of the switch of the switching unit, can be carried out over a long axial path and with good sealing.
  • the rotary knob has a sleeve section, in particular a sleeve section with an axial slot, into which a hollow shaft section of the connecting part is inserted, in particular wherein the sleeve section is shaped to correspond to a hollow cylinder section.
  • the advantage here is that a simple guided, rotationally fixed connection can be implemented. Self-centering of the rotary knob is possible by means of the connecting part, since the hollow cylinder is inserted into the sleeve and the connecting part is also connected to the rotary switch of the switching unit.
  • the rotary switch is rotatably mounted in the switching unit, and is also axially limited.
  • the housing part has a recess into which the rotary knob is at least partially inserted, in particular into which the sleeve section of the rotary knob is at least partially inserted and in particular is pivotally mounted.
  • the rotary knob and the connecting part are each manufactured as a one-piece, i.e. one-part, plastic injection-molded part.
  • the advantage here is that it enables simple production.
  • the rotary knob is mounted on the housing part.
  • the advantage here is that no additional components are required.
  • a sealing ring is arranged on the sleeve section of the rotary knob, which seal rests in an annular recess in the housing part, in particular wherein the contact surface between the sealing ring and the sleeve section has a constant radial distance from the sleeve axis, in particular therefore only extends in the axial direction and in the circumferential direction.
  • the disk-like section presses against the sealing ring, in particular with the normal direction of the pressure surface pressing against the sealing ring on the disk-like section being aligned in the axial direction.
  • the connecting part has a polygonal section, cross section or eccentrically shaped section that is at least partially inserted into the receiving recess of the switching unit.
  • the advantage here is that the disk-like section can be arranged axially between the locking lug and the polygonal section, cross section or eccentrically shaped section. This enables a rotationally fixed and preferably play-free connection.
  • the sealing ring is arranged axially between the locking lug and the disk-like section.
  • the radial expansion of the disk-like section as a function of the circumferential angle has a maximum, which is used in particular as an assembly indicator aid.
  • the advantage here is that simple assembly can be carried out and thus the locking can be carried out very quickly and easily.
  • the sealing ring is axially deformed to such an extent, in particular compressed, that the disk-like section directly touches the housing part.
  • an upper part 5 which is preferably made of plastic, is placed on a lower part, which is preferably made of metal, such as aluminum, and has cooling fins and/or cooling fingers.
  • the power electronics arranged in the device are connected to the lower part in a heat-conducting manner, so that the heat generated by the power electronics can be dissipated to the environment via the lower part.
  • the signal electronics are provided on a circuit board 20 which is connected to the upper part 5, in particular screw-connected or clip-connected or snapped into place.
  • input devices are arranged with which parameters stored in the signal electronics can be changed.
  • a rotary knob 3 is provided as an input means, which is connected in a rotationally fixed manner, in particular by means of a force-locking connection and/or a snap-in connection, to a connecting part 2, which in turn is inserted in a rotationally fixed manner with its driver section 41, which is preferably cross-shaped, into a corresponding receiving recess 50 and is thus connected in a form-fitting manner.
  • the switching unit 1 can be operated.
  • the rotary knob 3 has a handle back section 51 that protrudes outwards, so that it can be easily operated.
  • the rotary knob 3 is guided with its sleeve-shaped extension through a recess in the wall of the upper part 5, i.e. the housing of the upper part 5.
  • This sealing ring 21 thus continuously touches the sleeve-like extension in the circumferential direction and has a larger radial distance than the sleeve-like extension, since it is arranged on its radial outer side.
  • the sealing ring 21 rests in a recess in the housing, i.e. the upper part 5, and is thus limited against the axial direction. This is because the recess forms a contact surface section for the sealing ring 21, the normal of which is aligned in the axial direction.
  • the sleeve-like extension of the rotary knob 3 receives a hollow shaft section of the connecting part 2, wherein this hollow shaft section also has an axial slot to improve the deformability in the radial direction.
  • the connecting part 2 has two locking lugs at an axial distance from the sealing ring 21, which are locked into recesses 40, in particular holes, wherein the recesses are arranged in the sleeve-like extension.
  • the sleeve-like extension has axial slots to improve the deformability in the radial direction.
  • the connecting part 2 has an axial region adjacent to the axial region covered by the sealing ring 21, in which a disk-like section of the connecting part 2 is formed. In this area, the connecting part 2 is radially extended further than the largest radial distance of the sealing ring 21.
  • the disk-like section of the connecting part 2 rests against the housing, i.e. upper part 5, and thus limits the connecting part 2 in the axial direction.
  • the disk-like section of the connecting part 2 is slide-mounted on the housing during the rotary movement of the rotary knob 3, which is also slide-mounted on the housing, i.e. upper part 5.
  • the housing thus has a bearing surface for a slide bearing on both axial sides.
  • a labyrinth seal 32 is arranged between the rotary knob 3 and the housing, particularly in the area of the sliding bearing of the rotary knob 3, which is produced by means of annular grooves formed on the side of the rotary knob 3 facing the housing, with an annular wall arranged between two annular grooves, formed axially on the rotary knob 3 towards the housing and protruding at least partially protruding into a corresponding annular groove in the housing.
  • annular wall formed on the housing also protrudes at least partially into one of the annular grooves of the rotary knob 2.
  • the hollow shaft section (33) also presses outwards in the radial direction and is thus force-locked to the sleeve section (34).
  • the radial extension of the disc-like projection varies in the circumferential direction.
  • a mounting orientation indicating portion 4 is formed so that the mounting orientation is made clear.
  • the relative orientation of the connecting part 2 to the switching unit 1 is indicated.
  • the switching unit 1 is electrically connected with its electrical connection elements 42 to conductor tracks of the circuit board 20 and is thus mechanically held by the circuit board 20.
  • the circuit board 20 is in turn screw-connected to the upper part 5.
  • the switching unit 1 connects various electrical lines to one another depending on the angular position of the connecting part 2, which is held in the receiving recess 50 in a rotationally fixed manner. In particular, it is also possible to switch the electrical device on or off.
  • the locking lug 31 engages in the recess 40, whereby the sealing ring 21 is also elastically deformed, in particular axially compressed.
  • the disk-like section of the connecting part 2 functions as a sealing surface section 30, i.e. it serves to support the sealing ring 21.

Landscapes

  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Switch Cases, Indication, And Locking (AREA)

Description

Die Erfindung betrifft ein Elektrogerät, insbesondere Umrichter, mit Gehäuseteil und Schalteinheit.The invention relates to an electrical device, in particular a converter, with a housing part and a switching unit.

Es ist allgemein bekannt, dass eine Schalteinheit zum Einschalten oder Ausschalten eines Elektrogeräts verwendbar ist. Hierbei wird die Schalteinheit als elektrischer Schalter eingesetzt.It is generally known that a switching unit can be used to switch an electrical device on or off. In this case, the switching unit is used as an electrical switch.

Aus derFrom the DE 644 523 CDE 644 523 C ist als nächstliegender Stand der Technik eine federnde Griffdichtung für Drehschalter bekannt.The closest state of the art is a spring-loaded handle seal for rotary switches.

Aus derFrom the DE 101 47 793 C1DE 101 47 793 C1 ist ein Druck-Dreh-Schalter bekannt.A push-turn switch is known.

Aus derFrom the DE 11 00 758 BDE 11 00 758 B ist eine Dichtung für auf einer Tragwand montierte elektrische Drehschalter gegen Spritzwasser bekannt.is a seal for electrical rotary switches mounted on a supporting wall to protect against splash water.

Der Erfindung liegt daher die Aufgabe zugrunde, ein Elektrogerät in einfacher Weise weiterzubilden weiterzubilden, wobei möglichst wenig Teile verwendet werden sollen und das Gerät in hoher Schutzart ausführbar sein soll.The invention is therefore based on the object of developing an electrical device in a simple manner, whereby as few parts as possible are to be used and the device can be designed with a high degree of protection.

Erfindungsgemäß wird die Aufgabe bei dem Elektrogerät nach den in Anspruch 1 angegebenen Merkmalen gelöst.According to the invention, the object is achieved in the electrical device according to the features specified in claim 1.

Wichtige Merkmale der Erfindung bei dem Elektrogerät, insbesondere Umrichter, mit Gehäuseteil und Schalteinheit, sind, dass ein Drehknopf zur Betätigung einer Schalteinheit mit einem Verbindungsteil drehfest verbunden ist, wobei das Verbindungsteil mit der Schalteinheit drehfest verbunden ist, wobei das Verbindungsteil mit dem Drehknopf eingerastet verbunden ist, insbesondere mittels Rastnase, der Drehknopf an einem Gehäuseteil drehbar gelagert ist, wobei das Verbindungsteil einen scheibenartigen Abschnitt aufweist, der einen Dichtring an das Gehäuseteil andrückt.Important features of the invention in the electrical device, in particular converter, with housing part and switching unit, are that a rotary knob for operating a switching unit is connected in a rotationally fixed manner to a connecting part, wherein the connecting part is connected to the switching unit in a rotationally fixed manner, wherein the connecting part is connected to the rotary knob in a latched manner, in particular by means of a latching lug, the rotary knob is rotatably mounted on a housing part, wherein the connecting part has a disk-like section which presses a sealing ring onto the housing part.

Von Vorteil ist dabei, dass eine hohe Schutzart mit wenigen Teilen erreicht ist. Insbesondere ist kein Sicherungsring notwendig, da der scheibenartige Abschnitt als axiale Begrenzung und Andruckfläche für den Dichtring diesen gegen das Gehäuseteil drückt. Somit ist auch eine einfache Montage erreichbar. Des Weiteren sind die Teile als Spritzgussteile fertigbar und gleitlagerbar, wodurch weitere Komponenten, wie Lager oder dergleichen, entfallen.The advantage here is that a high degree of protection is achieved with just a few parts. In particular, no locking ring is necessary, as the disk-like section acts as an axial limit and pressure surface for the sealing ring, pressing it against the housing part. This also makes assembly easy. Furthermore, the parts can be manufactured as injection-molded parts and can be supported on plain bearings, which means that other components such as bearings or the like are not required.

Erfindungsgemäß ist das Verbindungsteil drehfest in einer Aufnahmeausnehmung der Schalteinheit verbunden, insbesondere zur Betätigung der Schalteinheit. Von Vorteil ist dabei, dass die Schalteinheit von der anderen Seite der Gehäusewand betätigbar ist, indem ein Drehknopf über das Verbindungsteil drehfest verbunden ist und die Betätigung, also Einstellung der Drehstellung des Schalters der Schalteinheit, über einen langen axialen Weg und eine gute Abdichtung hinweg ausführbar ist.According to the invention, the connecting part is connected in a rotationally fixed manner in a receiving recess of the switching unit, in particular for actuating the switching unit. The advantage here is that the switching unit can be actuated from the other side of the housing wall by a rotary knob being connected in a rotationally fixed manner via the connecting part and the actuation, i.e. setting the rotary position of the switch of the switching unit, can be carried out over a long axial path and with good sealing.

Bei einer vorteilhaften Ausgestaltung weist der Drehknopf einen Hülsenabschnitt, insbesondere einen mit Axialschlitz ausgeführten Hülsenabschnitt, auf, in welchen ein Hohlwellenabschnitt des Verbindungsteils eingeführt ist, insbesondere wobei der Hülsenabschnitt einem Hohlzylinderabschnitt entsprechend ausgeformt ist. Von Vorteil ist dabei, dass eine einfache geführt drehfeste Verbindung ausführbar ist. Dabei ist eine Selbstzentrierung des Drehknopfes mittels des Verbindungsteils ermöglicht, da der Hohlzylinder in die Hülse eingesteckt ist und das Verbindungsteil außerdem auch mit dem Drehschalter der Schalteinheit verbunden ist. Der Drehschalter ist in der der Schalteinheit drehbar gelagert, wobei er auch axial begrenzt ist.In an advantageous embodiment, the rotary knob has a sleeve section, in particular a sleeve section with an axial slot, into which a hollow shaft section of the connecting part is inserted, in particular wherein the sleeve section is shaped to correspond to a hollow cylinder section. The advantage here is that a simple guided, rotationally fixed connection can be implemented. Self-centering of the rotary knob is possible by means of the connecting part, since the hollow cylinder is inserted into the sleeve and the connecting part is also connected to the rotary switch of the switching unit. The rotary switch is rotatably mounted in the switching unit, and is also axially limited.

Bei einer vorteilhaften Ausgestaltung weist das Gehäuseteil eine Ausnehmung auf, in welche der Drehknopf zumindest teilweise eingeführt ist, insbesondere in welche der Hülsenabschnitt des Drehknopfes zumindest teilweise eingeführt ist, und insbesondere drehgelagert ist. Von Vorteil ist dabei, dass die Betätigung der Schalteinheit durch die Gehäusewandung hindurch ermöglicht ist.In an advantageous embodiment, the housing part has a recess into which the rotary knob is at least partially inserted, in particular into which the sleeve section of the rotary knob is at least partially inserted and in particular is pivotally mounted. The advantage here is that the actuation of the switching unit is possible through the housing wall.

Bei einer vorteilhaften Ausgestaltung sind der Drehknopf und das Verbindungsteil jeweils als einstückiges, also einteiliges, Kunststoffspritzgussteil gefertigt. Von Vorteil ist dabei, dass eine einfache Herstellung ermöglicht ist.In an advantageous embodiment, the rotary knob and the connecting part are each manufactured as a one-piece, i.e. one-part, plastic injection-molded part. The advantage here is that it enables simple production.

Bei einer vorteilhaften Ausgestaltung ist der Drehknopf am Gehäuseteil gleitgelagert. Von Vorteil ist dabei, dass keine weiteren Komponenten notwendig sind.In an advantageous design, the rotary knob is mounted on the housing part. The advantage here is that no additional components are required.

Bei einer vorteilhaften Ausgestaltung ist auf dem Hülsenabschnitt des Drehknopfes ein Dichtring angeordnet, der in einer ringförmigen Vertiefung des Gehäuseteils anliegt, insbesondere wobei die Berührfläche zwischen Dichtring und Hülsenabschnitt einen konstanten Radialabstand von der Hülsenachse aufweist, insbesondere also nur in axialer Richtung und in Umfangsrichtung sich erstreckt. Von Vorteil ist dabei, dass der Dichtring aufsteckbar ist auf den Hülsenabschnitt und somit eine einfache Montage ausführbar ist.In an advantageous embodiment, a sealing ring is arranged on the sleeve section of the rotary knob, which seal rests in an annular recess in the housing part, in particular wherein the contact surface between the sealing ring and the sleeve section has a constant radial distance from the sleeve axis, in particular therefore only extends in the axial direction and in the circumferential direction. The advantage here is that the sealing ring can be plugged onto the sleeve section, thus enabling simple assembly.

Bei einer vorteilhaften Ausgestaltung drückt der scheibenartige Abschnitt gegen den Dichtring, insbesondere wobei die Normalenrichtung der auf den Dichtring drückenden Druckfläche am scheibenartigen Abschnitt in axialer Richtung ausgerichtet ist. Von Vorteil ist dabei, dass ein Axial-Sicherungsring nicht notwendig ist.In an advantageous embodiment, the disk-like section presses against the sealing ring, in particular with the normal direction of the pressure surface pressing against the sealing ring on the disk-like section being aligned in the axial direction. The advantage here is that an axial locking ring is not necessary.

Erfindungsgemäß weist zur drehfesten Verbindung mit der Schalteinheit das Verbindungsteil einen in die Aufnahmeausnehmung der Schalteinheit zumindest teilweise eingeführten Polygonabschnitt, Kreuzabschnitt oder exzentrisch ausgeformten Abschnitt auf. Von Vorteil ist dabei, dass der scheibenartige Abschnitt axial zwischen Rastnase und dem Polygonabschnitt, Kreuzabschnitt oder exzentrisch ausgeformtem Abschnitt anordenbar ist. Somit ist eine drehfeste und vorzugsweise spielfreie Verbindung ermöglicht. According to the invention , for the rotationally fixed connection to the switching unit, the connecting part has a polygonal section, cross section or eccentrically shaped section that is at least partially inserted into the receiving recess of the switching unit. The advantage here is that the disk-like section can be arranged axially between the locking lug and the polygonal section, cross section or eccentrically shaped section. This enables a rotationally fixed and preferably play-free connection.

Erfindungsgemäß ist der Dichtring axial zwischen der Rastnase und dem scheibenartigen Abschnitt angeordnet. Von Vorteil ist dabei, dass eine hohe Schutzart erreichbar ist, da die Verbindung im Bereich der Rastnase zwar nicht dicht ist, jedoch der Dichtring eine Abdichtung zum Innenraum des Geräts bewirkt. According to the invention , the sealing ring is arranged axially between the locking lug and the disk-like section. The advantage here is that a high degree of protection can be achieved because, although the connection in the area of the locking lug is not tight, the sealing ring creates a seal to the interior of the device.

Erfindungsgemäß weist die radiale Ausdehnung des scheibenartigen Abschnitts als Funktion des Umfangswinkels ein Maximum auf, insbesondere welches als Montageanzeigehilfe verwendet ist. Von Vorteil ist dabei, dass eine einfache Montage ausführbar ist und somit die Verrastung sehr schnell und einfach ausführbar ist. According to the invention, the radial expansion of the disk-like section as a function of the circumferential angle has a maximum, which is used in particular as an assembly indicator aid. The advantage here is that simple assembly can be carried out and thus the locking can be carried out very quickly and easily.

Bei einer vorteilhaften Ausgestaltung ist der Dichtring axial derart stark verformt, insbesondere zusammengedrückt, dass der scheibenartige Abschnitt direkt das Gehäuseteil berührt. Von Vorteil ist dabei, dass der Dichtring vor zu großer Verformung geschützt ist.In an advantageous embodiment, the sealing ring is axially deformed to such an extent, in particular compressed, that the disk-like section directly touches the housing part. The advantage here is that the sealing ring is protected from excessive deformation.

Weitere Vorteile ergeben sich aus den Unteransprüchen. Die Erfindung ist auf die Merkmalskombination der Ansprüche beschränkt.Further advantages emerge from the subclaims. The invention is limited to the combination of features of the claims.

Die Erfindung wird nun anhand von Abbildungen näher erläutert:

  • In der Figur 1 ist ein Elektrogerät, insbesondere ein Umrichter, in Draufsicht dargestellt.
  • In der Figur 2 ist eine Schnittansicht dargestellt.
  • In der Figur 3 ist ein vergrößerter Ausschnitt dargestellt.
  • In der Figur 4 ist eine Schalteinheit 1 des Geräts mit Verbindungsteil 2 und Drehknopf 3 in Explosionsdarstellung aus einer ersten Blickrichtung dargestellt, wobei das Gehäuse weggelassen ist.
  • In der Figur 5 ist eine Schalteinheit 1 des Geräts mit Verbindungsteil 2 und Drehknopf 3 in Explosionsdarstellung aus einer anderen Blickrichtung als bei Figur 4 dargestellt.
The invention will now be explained in more detail with the aid of illustrations:
  • In the Figure 1 an electrical device, in particular a converter, is shown in plan view.
  • In the Figure 2 a sectional view is shown.
  • In the Figure 3 an enlarged section is shown.
  • In the Figure 4 a switching unit 1 of the device with connecting part 2 and rotary knob 3 is shown in an exploded view from a first viewing direction, with the housing omitted.
  • In the Figure 5 is a switching unit 1 of the device with connecting part 2 and rotary knob 3 in an exploded view from a different perspective than Figure 4 shown.

Wie in Figur 1 gezeigt, ist ein Oberteil 5, das vorzugsweise aus Kunststoff gefertigt ist, auf ein Unterteil aufgesetzt, das vorzugsweise aus Metall, wie Aluminium, gefertigt ist und Kühlrippen und/oder Kühlfinger aufweist.As in Figure 1 As shown, an upper part 5, which is preferably made of plastic, is placed on a lower part, which is preferably made of metal, such as aluminum, and has cooling fins and/or cooling fingers.

Die im Gerät angeordnete Leistungselektronik ist wärmeleitend mit dem Unterteil verbunden, so dass die von der Leistungselektronik erzeugte Wärme über das Unterteil abführbar ist an die Umgebung.The power electronics arranged in the device are connected to the lower part in a heat-conducting manner, so that the heat generated by the power electronics can be dissipated to the environment via the lower part.

Die Signalelektronik ist auf einer Leiterplatte 20 vorgesehen, die mit dem Oberteil 5 verbunden ist, insbesondere schraubverbunden oder klipsverbunden beziehungsweise eingerastet ist.The signal electronics are provided on a circuit board 20 which is connected to the upper part 5, in particular screw-connected or clip-connected or snapped into place.

Am Oberteil 5 sind außen Eingabemittel angeordnet, mit denen in der Signalelektronik gespeicherte Parameter veränderbar sind.On the outside of the upper part 5, input devices are arranged with which parameters stored in the signal electronics can be changed.

Als Eingabemittel ist ein Drehknopf 3 vorgesehen, der drehfest, insbesondere mittels kraftschlüssiger Verbindung und/oder Einrastverbindung, mit einem Verbindungsteil 2 verbunden ist, welches wiederum drehfest mit seinem Mitnehmerabschnitt 41, der vorzugsweise kreuzförmig ausgeformt ist, in eine entsprechende Aufnahmeausnehmung 50 eingeführt und somit formschlüssig verbunden ist.A rotary knob 3 is provided as an input means, which is connected in a rotationally fixed manner, in particular by means of a force-locking connection and/or a snap-in connection, to a connecting part 2, which in turn is inserted in a rotationally fixed manner with its driver section 41, which is preferably cross-shaped, into a corresponding receiving recess 50 and is thus connected in a form-fitting manner.

Durch Drehen des Drehknopfes 3 wird somit die Schalteinheit 1 betätigbar.By turning the rotary knob 3, the switching unit 1 can be operated.

Zur Erhöhung und Verbesserung der Griffigkeit weist der Drehknopf 3 einen nach außen hervorragenden Griffrückenabschnitt 51 auf, so dass eine einfache Betätigung ermöglicht ist.To increase and improve the grip, the rotary knob 3 has a handle back section 51 that protrudes outwards, so that it can be easily operated.

Der Drehknopf 3 ist mit seinem hülsenförmigen Fortsatz durch eine Ausnehmung in der Wandung des Oberteils 5, also des Gehäuses des Oberteils 5, geführt.The rotary knob 3 is guided with its sleeve-shaped extension through a recess in the wall of the upper part 5, i.e. the housing of the upper part 5.

Am axialen Endbereich dieses hülsenähnlichen Fortsatzes ist ein Dichtring 21, insbesondere O-Ring aus Gummi, angeordnet. Dieser Dichtring 21 berührt somit des hülsenähnlichen Fortsatzes in Umlaufrichtung ununterbrochen und weist einen größeren Radialabstand auf als der hülsenähnliche Fortsatz, da er an dessen radialer Außenseite angeordnet ist.A sealing ring 21, in particular an O-ring made of rubber, is arranged at the axial end region of this sleeve-like extension. This sealing ring 21 thus continuously touches the sleeve-like extension in the circumferential direction and has a larger radial distance than the sleeve-like extension, since it is arranged on its radial outer side.

Der Dichtring 21 liegt in einer Vertiefung des Gehäuses, also des Oberteils 5 an und ist somit entgegen der axialer Richtung begrenzt. Denn die Vertiefung bildet für den Dichtring 21 einen Anlageflächenabschnitt, dessen Normale in axialer Richtung ausgerichtet ist.The sealing ring 21 rests in a recess in the housing, i.e. the upper part 5, and is thus limited against the axial direction. This is because the recess forms a contact surface section for the sealing ring 21, the normal of which is aligned in the axial direction.

Der hülsenähnliche Fortsatz des Drehknopfes 3 nimmt einen Hohlwellenabschnitt des Verbindungsteils 2 auf, wobei dieser Hohlwellenabschnitt ebenfalls einen Axialschlitz aufweist zur Verbesserung der Verformbarkeit in radialer Richtung.The sleeve-like extension of the rotary knob 3 receives a hollow shaft section of the connecting part 2, wherein this hollow shaft section also has an axial slot to improve the deformability in the radial direction.

Das Verbindungsteil 2 weist axial beabstandet von dem Dichtring 21 zwei Rastnasen auf, die in Ausnehmungen 40, insbesondere Löcher, eingerastet sind, wobei die Ausnehmungen im hülsenähnlichen Fortsatz angeordnet sind. Dabei weist der hülsenähnliche Fortsatz Axialschlitze auf zur Verbesserung der Verformbarkeit in radialer Richtung auf.The connecting part 2 has two locking lugs at an axial distance from the sealing ring 21, which are locked into recesses 40, in particular holes, wherein the recesses are arranged in the sleeve-like extension. The sleeve-like extension has axial slots to improve the deformability in the radial direction.

Das Verbindungsteil 2 weist einen an den vom Dichtring 21 überdeckten axialen Bereich angrenzenden axialen Bereich auf, in welchem ein scheibenartiger Abschnitt des Verbindungsteils 2 ausgebildet ist. Dabei ist das Verbindungsteil 2 in diesem Bereich radial weiter ausgedehnt als der größte Radialabstand des Dichtrings 21.The connecting part 2 has an axial region adjacent to the axial region covered by the sealing ring 21, in which a disk-like section of the connecting part 2 is formed. In this area, the connecting part 2 is radially extended further than the largest radial distance of the sealing ring 21.

Somit liegt der scheibenartige Abschnitt des Verbindungsteils 2 am Gehäuse, also Oberteil 5, an und begrenzt somit das Verbindungsteil 2 in axialer Richtung. Der scheibenartige Abschnitt des Verbindungsteils 2 ist am Gehäuse gleitgelagert bei der Drehbewegung des Drehknopfes 3, der ebenfalls gleitgelagert ist am Gehäuse, also Oberteil 5. Somit weist das Gehäuse axial beidseitig eine Lagerfläche für eine Gleitlagerung auf.Thus, the disk-like section of the connecting part 2 rests against the housing, i.e. upper part 5, and thus limits the connecting part 2 in the axial direction. The disk-like section of the connecting part 2 is slide-mounted on the housing during the rotary movement of the rotary knob 3, which is also slide-mounted on the housing, i.e. upper part 5. The housing thus has a bearing surface for a slide bearing on both axial sides.

Zwischen Drehknopf 3 und Gehäuse ist insbesondere im Bereich der Gleitlagerung des Drehknopfes 3 eine Labyrinthdichtung 32 angeordnet, die mittels an der dem Gehäuse zugewandten Seite des Drehknopfes 3 ausgeformten Ringnuten erzeugt ist, wobei eine zwischen zwei Ringnuten angeordnete, axial am Drehknopf 3 zum Gehäuse hin ausgeformte und hervorstehende Ringwand in eine entsprechende Ringnut des Gehäuses zumindest teilweise hineinragt. Umgekehrt ragt auch eine am Gehäuse ausgebildete Ringwand in eine der Ringnuten des Drehknopfes 2 zumindest teilweise hinein. Die so gebildete Labyrinthdichtung 32 dichtet zwar ab, jedoch ist der Dichtring 21 als weitere Abdichtung vorgesehen zur Erhöhung der Abdichtungssicherheit.A labyrinth seal 32 is arranged between the rotary knob 3 and the housing, particularly in the area of the sliding bearing of the rotary knob 3, which is produced by means of annular grooves formed on the side of the rotary knob 3 facing the housing, with an annular wall arranged between two annular grooves, formed axially on the rotary knob 3 towards the housing and protruding at least partially protruding into a corresponding annular groove in the housing. Conversely, an annular wall formed on the housing also protrudes at least partially into one of the annular grooves of the rotary knob 2. The labyrinth seal 32 thus formed does seal, but the sealing ring 21 is provided as an additional seal to increase the sealing reliability.

Der Hohlwellenabschnitt (33) drückt auch in radialer Richtung nach außen und ist somit kraftschlüssig verbunden mit dem Hülsenabschnitt (34).The hollow shaft section (33) also presses outwards in the radial direction and is thus force-locked to the sleeve section (34).

Die radiale Ausdehnung des scheibenartigen Fortsatzes ist in Umfangsrichtung verschieden.The radial extension of the disc-like projection varies in the circumferential direction.

Wie in Figur 4 gezeigt, ist ein Montageausrichtungsanzeigeabschnitt 4 ausgeprägt, so dass die Montageausrichtung deutlich gemacht ist. Somit ist die relative Ausrichtung des Verbindungsteil 2 zur Schalteinheit 1 angezeigt.As in Figure 4 As shown, a mounting orientation indicating portion 4 is formed so that the mounting orientation is made clear. Thus, the relative orientation of the connecting part 2 to the switching unit 1 is indicated.

Die Schalteinheit 1 ist mit ihren elektrischen Anschlusselementen 42 elektrisch verbunden mit Leiterbahnen der Leiterplatte 20 und somit von der Leiterplatte 20 mechanisch gehalten. Die Leiterplatte 20 ist wiederum mit dem Oberteil 5 schraubverbunden. Die Schalteinheit 1 verbindet abhängig von der Winkelstellung des drehfest in der Aufnahmeausnehmung 50 aufgenommenen Verbindungsteils 2 verschiedene elektrische Leitungen miteinander. Insbesondere ist auch ein Ausschalten oder Einschalten des Elektrogeräts ermöglicht.The switching unit 1 is electrically connected with its electrical connection elements 42 to conductor tracks of the circuit board 20 and is thus mechanically held by the circuit board 20. The circuit board 20 is in turn screw-connected to the upper part 5. The switching unit 1 connects various electrical lines to one another depending on the angular position of the connecting part 2, which is held in the receiving recess 50 in a rotationally fixed manner. In particular, it is also possible to switch the electrical device on or off.

Bei Montage rastet die Rastnase 31 in die Ausnehmung 40 ein, wobei dabei auch der Dichtring 21 elastisch verformt wird, insbesondere axial komprimiert.During assembly, the locking lug 31 engages in the recess 40, whereby the sealing ring 21 is also elastically deformed, in particular axially compressed.

Der scheibenartige Abschnitt des Verbindungsteils 2 fungiert als Dichtflächenabschnitt 30, also dient er zur Anlage des Dichtrings 21.The disk-like section of the connecting part 2 functions as a sealing surface section 30, i.e. it serves to support the sealing ring 21.

BezugszeichenlisteList of reference symbols

  • 1 Schalteinheit1 switching unit
  • 2 Verbindungsteil2 Connecting part
  • 3 Drehknopf3 Rotary knob
  • 4 Montageausrichtungsanzeigeabschnitt4 Mounting alignment indicator section
  • 5 Oberteil5 Top
  • 20 Leiterplatte20 Circuit board
  • 21 Dichtring, insbesondere O-Ring aus Gummi21 Sealing ring, especially rubber O-ring
  • 30 Dichtflächenabschnitt30 Sealing surface section
  • 31 Rastnase31 locking lug
  • 32 Labyrinthdichtung32 Labyrinth seal
  • (34) Hülsenabschnitt mit Schlitz, insbesondere Hülsenabschnitt mit Axialschlitz(34) Sleeve section with slot, in particular sleeve section with axial slot
  • (33) Hohlwellenabschnitt mit Schlitz, insbesondere Hohlwellenabschnitt mit Axialschlitz(33) Hollow shaft section with slot, in particular hollow shaft section with axial slot
  • 40 Ausnehmung, insbesondere Loch40 Recess, especially hole
  • 41 Mitnehmerabschnitt, insbesondere kreuzförmig ausgeformter Mitnehmerabschnitt41 Driving section, in particular cross-shaped driving section
  • 42 elektrisches Anschlusselement42 electrical connection element
  • 50 Aufnahmeausnehmung50 Recess
  • 51 Griffrückenabschnitt51 Back of handle section

Claims (7)

  1. Electrical device, in particular converter, having a housing part and a switching unit (1),
    wherein a rotary knob (3) for actuating a switching unit (1) is connected to a connecting part (2) for conjoint rotation, wherein the connecting part (2) is connected to the switching unit (1) for conjoint rotation,
    wherein the rotary knob (3) is rotatably mounted on a housing part,
    wherein the connecting part (2) has a disc-like portion which presses a sealing ring (21) against the housing part, characterized in that
    the connecting part (2) is connected to the rotary knob (3) in a latched manner by means of a latching lug (31),
    wherein the connecting part (2) is connected for conjoint rotation in a receiving recess (50) of the switching unit (1), in particular for actuating the switching unit (1), wherein, for the purpose of connection to the switching unit (1) for conjoint rotation, the connecting part (2) has a polygonal portion, cross-shaped portion or eccentrically shaped portion which is at least partially inserted into the receiving recess (50) of the switching unit (1),
    wherein the sealing ring (21) is arranged axially between the latching lug (31) and the disc-like portion,
    wherein a radial extent of the disc-like portion has a maximum as a function of the circumferential angle, which in particular is used as an assembly indicator aid.
  2. Electrical device according to any one of the preceding claims,
    characterized in that
    the housing part has an aperture (40), into which the rotary knob (3) is at least partially inserted,
    in particular wherein the rotary knob (3) has a sleeve portion (34), in particular a sleeve portion (34) designed with an axial slot, into which a hollow shaft portion (33) of the connecting part (2) is inserted, in particular wherein the sleeve portion (34) is shaped in a manner corresponding to a hollow cylinder portion,
    in particular into which the sleeve portion (34) of the rotary knob (3) is at least partially inserted, and in particular is rotatably mounted.
  3. Electrical device according to any one of the preceding claims,
    characterized in that
    the rotary knob (3) and the connecting part (2) are each manufactured as a unitary, i.e. one-piece, injection-moulded plastic part.
  4. Electrical device according to any one of the preceding claims,
    characterized in that
    the rotary knob (3) is slidably mounted on the housing part.
  5. Electrical device according to claim 2,
    characterized in that
    when the rotary knob (3) has a sleeve portion (34), the sealing ring (21) is arranged on the sleeve portion (34) of the rotary knob (3), said sealing ring resting in an annular depression of the housing part,
    in particular wherein a contact area between the sealing ring (21) and the sleeve portion (34) has a constant radial distance from a sleeve axis, that is to say in particular extends only in an axial direction and in a circumferential direction.
  6. Electrical device according to any one of the preceding claims,
    characterized in that
    the disc-like portion presses against the sealing ring (21), in particular wherein the normal direction of the pressing surface on the disc-like portion that presses against the sealing ring (21) is oriented in the axial direction.
  7. Electrical device according to any one of the preceding claims,
    characterized in that
    the sealing ring (21) is axially deformed, in particular compressed, to such an extent that the disc-like portion makes direct contact with the housing part.
EP14705035.5A 2013-02-27 2014-02-14 Electrical device, in particular converter, having a housing part and a switching unit Active EP2962318B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102013003240.7A DE102013003240B4 (en) 2013-02-27 2013-02-27 Electrical device, in particular converter, with housing part and switching unit
PCT/EP2014/000404 WO2014131494A1 (en) 2013-02-27 2014-02-14 Electrical device, in particular converter, having a housing part and a switching unit

Publications (3)

Publication Number Publication Date
EP2962318A1 EP2962318A1 (en) 2016-01-06
EP2962318C0 EP2962318C0 (en) 2024-04-17
EP2962318B1 true EP2962318B1 (en) 2024-04-17

Family

ID=50115805

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14705035.5A Active EP2962318B1 (en) 2013-02-27 2014-02-14 Electrical device, in particular converter, having a housing part and a switching unit

Country Status (3)

Country Link
EP (1) EP2962318B1 (en)
DE (1) DE102013003240B4 (en)
WO (1) WO2014131494A1 (en)

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE644523C (en) * 1935-11-03 1937-05-05 Aeg Spring handle seal for rotary switch
NL242295A (en) * 1958-08-18
DE7002051U (en) * 1970-01-22 1970-07-02 Bauknecht Gmbh G CONTROL DEVICE.
JPS5581814U (en) * 1978-11-30 1980-06-05
JPS613639U (en) * 1984-06-12 1986-01-10 リオン株式会社 switch device
JPS613693U (en) 1984-06-13 1986-01-10 三洋電機株式会社 microwave oven
AT402109B (en) * 1995-01-23 1997-02-25 Vaillant Gmbh OPERATION BUTTON
JP3587705B2 (en) * 1998-11-25 2004-11-10 アルプス電気株式会社 Connection structure of electric parts
DE10147793C1 (en) * 2001-09-27 2003-02-13 Miele & Cie Rotary push-button switch has labyrinth seal defined between inner and outer operating elements for push-button rod and switch rotor shaft
JP2005149726A (en) * 2003-11-11 2005-06-09 Asahi Matsushita Electric Works Ltd Rotary switch
EP2051270B1 (en) * 2007-10-19 2010-01-13 Ziehl-Abegg AG Adjustment mechanism with integrated illuminated display

Also Published As

Publication number Publication date
DE102013003240A1 (en) 2014-08-28
EP2962318C0 (en) 2024-04-17
WO2014131494A1 (en) 2014-09-04
EP2962318A1 (en) 2016-01-06
DE102013003240B4 (en) 2022-01-27

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