EP1060539B1 - Household appliance - Google Patents

Household appliance Download PDF

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Publication number
EP1060539B1
EP1060539B1 EP99911733A EP99911733A EP1060539B1 EP 1060539 B1 EP1060539 B1 EP 1060539B1 EP 99911733 A EP99911733 A EP 99911733A EP 99911733 A EP99911733 A EP 99911733A EP 1060539 B1 EP1060539 B1 EP 1060539B1
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EP
European Patent Office
Prior art keywords
components
housing
contact elements
side walls
support element
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 - Lifetime
Application number
EP99911733A
Other languages
German (de)
French (fr)
Other versions
EP1060539A1 (en
Inventor
Friedhelm Stumm
Fritz Hägele
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.)
BSH Hausgeraete GmbH
Original Assignee
BSH Bosch und Siemens Hausgeraete GmbH
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 BSH Bosch und Siemens Hausgeraete GmbH filed Critical BSH Bosch und Siemens Hausgeraete GmbH
Publication of EP1060539A1 publication Critical patent/EP1060539A1/en
Application granted granted Critical
Publication of EP1060539B1 publication Critical patent/EP1060539B1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25DREFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00General constructional features
    • F25D23/006General constructional features for mounting refrigerating machinery components
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4251Details of the casing
    • AHUMAN NECESSITIES
    • A47FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47LDOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00Washing or rinsing machines for crockery or tableware
    • A47L15/42Details
    • A47L15/4251Details of the casing
    • A47L15/4274Arrangement of electrical components, e.g. control units or cables
    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06FLAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12Casings; Tubs
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
    • H01R4/58Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation characterised by the form or material of the contacting members
    • H01R4/64Connections between or with conductive parts having primarily a non-electric function, e.g. frame, casing, rail

Definitions

  • the invention relates to a household appliance, such as a refrigerator, a stove, a Washing machine, dishwasher or the like, with at least one detachable carrier element for electrically operated components, such as compressors, Switches, motors or the like, the electrical connection line one to ground serving protective conductor and with at least one useful space housing, which is electrically conductive and touchable Components, such as side walls made of electrically conductive material, a door, Struts or the like, which is at least largely electrical are conductively connected using contact elements and are electrically grounded.
  • US-A-5676438 is an air conditioner for installation in one Known window.
  • This air conditioner is the one with device aggregates equipped carrier, possibly provided with a lacquer layer on its underside Device housing inserted, which for the purpose of inserting rails has, which with sharp projections for electrical contacting the carrier are equipped with the device housing.
  • the invention has for its object in a household appliance according to the Preamble of claim 1 with simple constructive measures reliable electrical grounding avoiding the disadvantages of the prior art to create the components made of electrically conductive material.
  • the carrier element has at least two prism-like contact elements, which in Fixing state of the support element on the housing or the components with Receptacles on the housing or the components are non-positively and / or materially bonded together able to act and thus electrically conductive with the housing or Components are contacted.
  • the electrical contacting is without additional securing components, only by assembling and attaching the Carrier element a reliable electrical contact and thus grounding the im In the event of an insulation fault, live components are guaranteed.
  • the degree of automation of the household appliance is also clear increased, while at the same time achieving a high production quality to the workmanship of the manufacturing staff and thus random errors assembly are significantly reduced.
  • the contact elements contact the carrier element particularly reliably, in particular if this is coated at the contact point with paint or the like, if after a preferred embodiment of the subject of the invention is provided, that the contact elements are designed as contact tips.
  • a particularly low assembly and handling effort and the result A particularly time-saving production of the carrier element results if after a next advantageous embodiment of the subject of the invention provided is that the contact elements are integrally formed on the carrier element.
  • the contact elements are triangular in longitudinal section are and in the state of attachment with receptacles on the housing or the components are able to work together in a non-positive and / or cohesive manner.
  • the receptacles which, for example, a rectangular, square or circular opening cross-section can have, when mounting the support element in a certain Way deformed by the free flanks of the contact elements, as a result of this Process at the points of contact between the contact partners not leading Layers such as lacquer layers, corrosion layers or the like are safely scraped off and thus already through the assembly process without additional measures reliable electrical contacting and thus a VDE-compliant earthing connection the contact elements with the housing or the components guaranteed is.
  • the forming technology of cutting the contact elements also creates whose separation point to the carrier element a certain degree of separation, which the scraping Effect of the triangular contact elements in longitudinal section when penetrating into the Support on housing or components supported.
  • the receptacles on the housing or the components are rectangular are formed and deformed when the contact elements penetrate.
  • the invention can be used particularly expediently in the case of a refrigerator with a at least one heat-insulating housing which accommodates usable space electrically conductive and touchable components such as those made of sheet steel Side walls or the like and a machine room for receiving a refrigerant compressor which rests on an electrically grounded mounting rail, which is electrically connected to the other components via the side walls if, according to a last preferred embodiment of the subject of the invention it is provided that the mounting rail as a carrier element according to one of the claims 1 to 5 and each of the side walls is designed according to claim 6.
  • FIG. 1 is a purely schematically represented, as a Table-top household refrigerator 10 shown, its heat insulating formed housing 11 on its front side a door 12 and on its door 12 opposite niche-like machine room 13 which is accessible from the rear of the housing 11.
  • the engine room 13 is made in one piece, for example from plastic injection molding Floor pan 14 saved, which the machine room 13 both for thermal insulation the housing 11 out and laterally limited.
  • the floor pan 14 has on its side walls 15 (only one of which is shown in the broken state) also molded Receptacles 16 on which facing the installation plane of the device 10 Underside of the side walls 15 are accessible here.
  • Adjacent to the bowls 16 cylindrical attachment domes 17 are provided (only one is visible) which, like the receptacles 16 from the underside of the side walls 15 are accessible and for self-tapping insertion of screws trained fasteners 18 serve.
  • the fastener 18 is one arranged as a support element for parking one in the machine room 13 Refrigerant compressor 19 serving mounting rail 20 on the floor pan 14 by insertion the fastening means 18 in the fastening domes 17.
  • the mounting rail 20 is via a ground line 21 to the housing of the refrigerant compressor 19 electrically connected, which in turn via its not shown Power cord is grounded.
  • the mounting rail 20 has a rectangular shape in plan view Support web 22, which is used for its stiffening and thus for improvement its wearing properties along its longer rectangular sides with down projecting bends 23 is provided.
  • the support web 22 has cut-out prism-like contact elements 24, which are triangular in longitudinal section. These contact elements 24 are on the side opposite the bends 23 from the plane of the supporting web 22 angled out and with their free, to a cutting edge 25th converging prism legs 26 parallel to the shorter side of the rectangle Support rail 20 arranged.
  • This is attached to the floor pan 14 with on the lateral sections of the heat-insulating housing 11 provided by non-cutting shaping of pre-coated, so-called "coil-coating steel sheet” produced side walls 30 electrically connected.
  • the side walls 30 are formed in the form of a flat shell, the Shell bottom 31 serves as a lateral visible surface of the side walls 30 and through Bending generated shell walls 32 on the heat-insulating housing body 11 encompass its lateral edge sections.
  • shell walls 32 Of the shell walls 32 are the mounting level of the domestic refrigerator 10 facing shell walls 32 with spaced apart elongated holes 33, the longer sides parallel run to the tray bottom 31. Between the slots 33 have the On the installation level, facing shell walls 32 are rectangularly spaced apart Recesses 34, the longer sides of the rectangle also perpendicular to Shell bottom 31 are aligned.
  • the side walls 30 made of sheet steel are made of not shown on the door side Steel struts manufactured, so-called end plates connected, which, like the side walls 30, via the grounding line fixed to the mounting rail 20 21 are grounded.
  • the mounting rail 20, which is in the assembled state, is used for grounding on the basis of the elongated holes 27 on the support web 22 and the elongated holes 33 the fastening means 18 penetrating the side walls 30 on the floor pan 14 is fixed and electrically connected to the two side walls 30.
  • the electrical connection between the mounting rail 20 and the side walls 30 generated by the contact elements 24, which when mounting the mounting rail 20 in Arrow direction (Fig. 2 and Fig.

Description

Die Erfindung betrifft ein Haushaltsgerät, wie ein Kältegerät, einen Herd, eine Waschmaschine, einen Geschirrspüler oder dergleichen, mit wenigstens einem lösbaren Trägerelement für elektrisch betriebene Bauelemente, wie Verdichter, Schalter, Motore oder dergleichen, deren elektrische Anschlußleitung einen zur Erdung dienenden Schutzleiter aufweist und mit einem wenigstens einen Nutzraum aufnehmenden Gehäuse, welches elektrisch leitend ausgebildete und berührbare Bauteile, wie aus elektrisch leitendem Material gefertigte Seitenwände, eine Tür, Verstrebungen oder dergleichen umfaßt, welche zumindest weitestgehend elektrisch leitend anhand von Kontaktelementen verbunden und elektrisch geerdet sind.The invention relates to a household appliance, such as a refrigerator, a stove, a Washing machine, dishwasher or the like, with at least one detachable carrier element for electrically operated components, such as compressors, Switches, motors or the like, the electrical connection line one to ground serving protective conductor and with at least one useful space housing, which is electrically conductive and touchable Components, such as side walls made of electrically conductive material, a door, Struts or the like, which is at least largely electrical are conductively connected using contact elements and are electrically grounded.

Bei Haushaltsgeräten ist es Vorschrift, deren berührbare, aus elektrisch leitendem Material gefertigten Gehäuseteile, welche im Fall eines Isolationsfehlers Netzspannung annehmen können, dauerhaft und zuverlässig mit dem Schutzkontakt des Gerätestekkers zu kontaktieren.In the case of household appliances, it is a requirement that their touchable, made of electrically conductive Material manufactured housing parts, which in the event of an insulation fault mains voltage can assume, permanently and reliably with the protective contact of the device plug to contact.

Hierzu ist es auf dem Gebiet der Kältegeräte seit langem Stand der Technik, dessen über die Netzanschlußleitung geerdete Verdichter an ihrem Gehäuse mit einer Erdungsleitung zu kontaktieren, welche ihrerseits mit einer den Verdichter tragenden Tragschiene elektrisch leitend verbunden ist. Diese ist wiederum durch ihre Montage mit den aus Stahlblech gefertigten Seitenwänden und über diese mit den weiteren berührbaren und elektrisch leitenden Gehäuseteilen elektrisch kontaktiert. Von diesen zur Erdung der Gehäuseteile dienenden Kontaktschnittstellen wirft insbesondere die Verbindung zwischen der Tragschiene und den Seitenwänden Probleme auf, da zur Herstellung der letzteren ein vorbeschichtetes, als "Coil-Coating-Stahlblech" bezeichnetes Material zum Einsatz kommt, dessen Oberfläche mit einer Lackschicht versehen ist, welche an sich eine elektrische Kontaktierung zwischen der Tragschiene und den Seitenwänden für den Fall unterbindet, wenn die beiden Verbindungspartner lediglich durch eine mechanische Verbindung aneinander gepreßt sind. Um dieses Kontaktierungsproblem zu beseitigen, ist man dazu übergegangen, die Lackschicht durchstoßende Bauelemente, wie beispielsweise sogenannte Zahnscheiben oder speziell für die Erdung vorgesehene Bauteile mit krallenartigen Vorsätzen einzusetzen, um in der mit hohen Stückzahlen beaufschlagten Fertigung von Konsumgüterartikeln stets eine sichere Erdungsverbindung zwischen den elektrisch leitenden und berührbaren Gehäuseteilen herbeizuführen. Derartige zusätzliche Bauteile erschweren jedoch den Montageablauf erheblich und bringen zudem das Problem mit sich, daß die funktionssichere Kontaktierung in gewissem Umfang von der Arbeitssorgfalt des Arbeitspersonals abhängig ist.For this purpose, it has long been state of the art in the field of refrigeration equipment Compressors earthed via the mains connection line to their housing with an earth line to contact, which in turn with one carrying the compressor DIN rail is electrically connected. This in turn is due to their assembly with the side walls made of sheet steel and over them with the other touchable ones and electrically conductive housing parts electrically contacted. From these to Grounding of the housing parts serving contact interfaces in particular throws the connection problems between the mounting rail and the side walls because of the manufacture the latter a precoated, referred to as "coil coating steel sheet" Material is used, the surface of which is provided with a lacquer layer, which in itself is an electrical contact between the mounting rail and the Sidewalls in the event that the two connection partners only are pressed together by a mechanical connection. About this contacting problem to eliminate, one has gone over to penetrating the paint layer Components, such as so-called toothed disks or especially for use the earthing components with claw-like attachments in order to Manufacturing of consumer goods articles with high quantities always one Safe ground connection between the electrically conductive and touchable housing parts bring about. However, such additional components complicate the Assembly process considerably and also bring with it the problem that the functionally reliable Contacting to a certain extent from the work care of the workforce is dependent.

Femer ist es auf dem Gebiet der Geschirrspüler Stand der Technik die zur Erdung der aus elektrischem Material gefertigten und berührbaren Gehäuseteile mit Ansteckfahnen auszustatten, welche über Steckhülsen an Schutzleiterdrähte angekoppelt sind, welche in Art eines Kabelbaums mit bedarfsgemäß unterschiedlich langen Schutzleiterdrähten von einer zentralen Erdungsstelle im Gerätegehäuse ausgehen. Hier ist zwar durch die direkte Kontaktierung der einzelnen, unter Umständen im Falle eines Isolationsfehlers unter Netzspannung stehenden Bauteile mit den Schutzleitern stets eine sichere Erdung dieser Bauteile gewährleistet, jedoch verursacht die Anfertigung der Kabelbäume einerseits und deren Montage im Gerätegehäuse andererseits eine kostenintensive Fertigung.It is also state of the art in the field of dishwashers for grounding the made of electrical material and accessible parts of the housing with lugs equip which are connected to protective conductor wires via plug sleeves, which is in the manner of a cable harness with protective conductor wires of different lengths as required assume a central earthing point in the device housing. Here is by directly contacting the individual, possibly in the case of a Insulation fault of components under mains voltage with the protective conductors ensures a safe grounding of these components, but causes the manufacture the cable harnesses on the one hand and their assembly in the device housing on the other hand costly manufacturing.

Außerdem ist aus der US-A-5676438 ein Klimagerät zum Einbau in einem Fensterausschnitt bekannt. Bei diesem Klimagerät wird der mit Geräteaggregaten bestückte, ggf. an seiner Unterseite mit einer Lackschicht versehene Träger in ein Gerätegehäuse eingeschoben, welches zum Zwecke des Einschiebens Schienen aufweist, welche mit scharfen Vorsprüngen zur elektrischen Kontaktierung des Trägers mit dem Gerätegehäuse ausgestattet sind.In addition, from US-A-5676438 is an air conditioner for installation in one Known window. This air conditioner is the one with device aggregates equipped carrier, possibly provided with a lacquer layer on its underside Device housing inserted, which for the purpose of inserting rails has, which with sharp projections for electrical contacting the carrier are equipped with the device housing.

Der Erfindung liegt die Aufgabe zugrunde, bei einem Haushaltsgerät gemäß dem Oberbegriff des Anspruches 1 mit einfachen konstruktiven Maßnahmen eine zuverlässige, die Nachteile des Standes der Technik vermeidende elektrische Erdung der aus elektrisch leitendem Material gefertigten Bauelemente zu schaffen.The invention has for its object in a household appliance according to the Preamble of claim 1 with simple constructive measures reliable electrical grounding avoiding the disadvantages of the prior art to create the components made of electrically conductive material.

Diese Aufgabe wird gemäß der Erfindung dadurch gelöst, daß das Trägerelement wenigstens zwei prismaartige Kontaktelemente aufweist, welche im Befestigungszustand des Trägerelements am Gehäuse oder den Bauteilen mit Aufnahmen am Gehäuse oder den Bauteilen kraft- undloder stoffschlüssig zusammen zu wirken vermögen und dadurch elektrisch leitend mit dem Gehäuse oder den Bauteilen kontaktiert sind.This object is achieved according to the invention in that the carrier element has at least two prism-like contact elements, which in Fixing state of the support element on the housing or the components with Receptacles on the housing or the components are non-positively and / or materially bonded together able to act and thus electrically conductive with the housing or Components are contacted.

Durch die erfindungsgemäße Lösung ist ohne zusätzliche, die elektrische Kontaktierung sicherstellende Bauteile, lediglich durch die Montage und das Befestigen des Trägerelements eine zuverlässige elektrische Kontaktierung und somit Erdung der im Falle eines Isolationsfehlers Spannung führenden Bauteile gewährleistet. Durch die Teilereduktion ist der Automatisierungsgrad des Haushaltsgerätes zusätzlich deutlich gesteigert, wobei gleichzeitig zur Erreichung einer hohen Fertigungsqualität die Anforderung an die Arbeitssorgfalt des Fertigungspersonals und somit zufällige Fehler bei der Montage deutlich herabgesetzt sind.With the solution according to the invention the electrical contacting is without additional securing components, only by assembling and attaching the Carrier element a reliable electrical contact and thus grounding the im In the event of an insulation fault, live components are guaranteed. Through the Parts reduction, the degree of automation of the household appliance is also clear increased, while at the same time achieving a high production quality to the workmanship of the manufacturing staff and thus random errors assembly are significantly reduced.

Besonders sicher kontaktieren die Kontaktelemente das Trägerelement, insbesondere wenn dieses an der Kontaktstelle mit Lack oder dergleichen beschichtet ist, wenn nach einer bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß die Kontaktelemente als Kontaktspitzen ausgebildet sind.The contact elements contact the carrier element particularly reliably, in particular if this is coated at the contact point with paint or the like, if after a preferred embodiment of the subject of the invention is provided, that the contact elements are designed as contact tips.

Ein besonders geringer Montage- und Handhabungsaufwand und daraus resultierend eine besonders zeitsparende Fertigung des Trägerelements ergibt sich, wenn nach einer nächsten vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgesehen ist, daß die Kontaktelemente einstückig an das Trägerelement mitangeformt sind.A particularly low assembly and handling effort and the result A particularly time-saving production of the carrier element results if after a next advantageous embodiment of the subject of the invention provided is that the contact elements are integrally formed on the carrier element.

Nach einer weiteren bevorzugten Ausführungsform des Gegenstandes der Erfindung ist vorgesehen, daß die Kontaktelemente im Längsschnitt dreieckförmig ausgebildet sind und im Befestigungszustand mit Aufnahmen am Gehäuse oder den Bauteilen kraft- und/oder stoffschlüssig zusammenzuwirken vermögen.According to a further preferred embodiment of the subject of the invention it is provided that the contact elements are triangular in longitudinal section are and in the state of attachment with receptacles on the housing or the components are able to work together in a non-positive and / or cohesive manner.

Durch die dreieckförmige Ausbildung der Kontaktelemente werden die Aufnahmen, welche beispielsweise einen rechteckförmigen, quadratischen oder kreisrunden Öffnungsquerschnitt aufweisen können, beim Montieren des Trägerelementes in gewisser Weise durch die freien Flanken der Kontaktelemente deformiert, wodurch infolge dieses Vorganges an den Berührungsstellen zwischen den Kontaktpartnern nicht leitende Schichten, wie Lackschichten, Korrosionsschichten oder dergleichen, sicher abgeschabt werden und somit bereits durch den Montagevorgang ohne zusätzliche Maßnahmen eine sichere elektrische Kontaktierung und somit eine VDE-gerechte Erdungsverbindung der Kontaktelemente mit dem Gehäuse oder den Bauteilen gewährleistet ist.Due to the triangular design of the contact elements, the receptacles, which, for example, a rectangular, square or circular opening cross-section can have, when mounting the support element in a certain Way deformed by the free flanks of the contact elements, as a result of this Process at the points of contact between the contact partners not leading Layers such as lacquer layers, corrosion layers or the like are safely scraped off and thus already through the assembly process without additional measures reliable electrical contacting and thus a VDE-compliant earthing connection the contact elements with the housing or the components guaranteed is.

Besonders preisgünstig und einfach großseriengerecht hergestellt werden können die Kontaktelemente, wenn nach einer nächsten vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgesehen ist, daß die Kontaktelemente durch Schneidbiegen von Trägerelementabschnitten aus dem Trägerelement gebildet sind. Unter Schneidbiegen ist das Heraustrennen und Hochstellen der Kontaktelemente aus dem Trägerelement zu verstehen.The can be manufactured particularly inexpensively and easily for large series Contact elements if after a next advantageous embodiment of the object the invention provides that the contact elements by cutting bending are formed by carrier element sections from the carrier element. Under cutting bending is the removal and raising of the contact elements from the carrier element to understand.

Durch die Umformtechnik des Schneidbiegens der Kontaktelemente entsteht zudem an deren Trennstelle zum Trägerelement ein gewisser Trenngrad, welcher die schabende Wirkung der im Längsschnitt dreieckförmigen Kontaktelemente beim Eindringen in die Aufnahme am Gehäuse oder den Bauteilen unterstützt.The forming technology of cutting the contact elements also creates whose separation point to the carrier element a certain degree of separation, which the scraping Effect of the triangular contact elements in longitudinal section when penetrating into the Support on housing or components supported.

Gemäß einer weiteren bevorzugten Ausführungsform des Gegenstandes der Erfindung ist vorgesehen, daß die Aufnahmen am Gehäuse oder den Bauteilen rechteckförmig ausgebildet sind und beim Eindringen der Kontaktelemente deformiert werden.According to a further preferred embodiment of the subject of the invention it is provided that the receptacles on the housing or the components are rectangular are formed and deformed when the contact elements penetrate.

Hierdurch ist nicht nur eine sichere Kontaktierung des Trägerelements über dessen Kontaktelemente mit dem Gehäuse oder den Bauteilen gewährleistet, sondern durch die rechteckförmige Ausbildung der Aufnahmen auch sichergestellt, daß die dreieckförmigen Kontaktelemente auch im "worst-case-Montage-Toleranzfall" durch die längliche Ausbildung der Aufnahme stets sicher zusammenfügbar sind.This not only ensures reliable contacting of the carrier element via the latter Contact elements with the housing or the components guaranteed, but through the rectangular shape of the recordings also ensured that the triangular Contact elements even in the "worst case assembly tolerance case" due to the elongated Training the recording are always securely put together.

Besonders zweckmäßig einsetzbar ist die Erfindung bei einem Kältegerät mit einem wenigstens einen Nutzraum aufnehmenden wärmeisolierenden Gehäuse, welches elektrisch leitend ausgebildete und berührbare Bauteile wie aus Stahlblech gefertigte Seitenwände oder dergleichen und einen Maschinenraum zur Aufnahme eines Kältemittelverdichters umfaßt, welcher auf einer elektrisch geerdeten Tragschiene ruht, welche elektrisch leitend über die Seitenwände mit den weiteren Bauteilen verbunden ist, wenn nach einer letzten bevorzugten Ausführungsform des Gegenstandes der Erfindung vorgesehen ist, daß die Tragschiene als Trägerelement nach einem der Ansprüche 1 bis 5 und jede der Seitenwände nach Anspruch 6 ausgebildet ist. The invention can be used particularly expediently in the case of a refrigerator with a at least one heat-insulating housing which accommodates usable space electrically conductive and touchable components such as those made of sheet steel Side walls or the like and a machine room for receiving a refrigerant compressor which rests on an electrically grounded mounting rail, which is electrically connected to the other components via the side walls if, according to a last preferred embodiment of the subject of the invention it is provided that the mounting rail as a carrier element according to one of the claims 1 to 5 and each of the side walls is designed according to claim 6.

Die Erfindung ist in der nachfolgenden Beschreibung am Beispiel eines in den beigefügten Zeichnungen vereinfacht dargestellten Haushaltskältegerätes erläutert.The invention is in the following description using the example of one in the accompanying Drawings simplified household refrigerator illustrated.

Es zeigen:

Fig. 1
vereinfacht ein Haushaltskältegerät mit einem durch eine Bodenwanne freigesparten Maschinenraum zur Aufnahme eines auf einer Tragschiene ruhenden Verdichters sowie zwei aus Stahlblech gefertigte, mit der Tragschiene verbundene Gehäuseseitenwände in raumbildlicher Ansicht von hinten
Fig. 2
in einem Ausschnitt, die Bodenwanne, eine der darüber angeordneten Seitenwände mit ihren in einem Umbug vorgesehenen Aufnahmen und die Tragschiene mit ihren Kontaktelementen, in Explosionsdarstellung,
Fig. 3
ausschnittweise in Schnittdarstellung die Bodenwanne und die Seitenwand gemäß Figur 2 im Fügezustand sowie die Tragschiene im unbefestigten Zustand und
Fig. 4
ausschnittsweise in Schnittdarstellung die Bodenwanne, die Seitenwand und die Tragschiene gemäß Figur 3, im Fügezustand.
Show it:
Fig. 1
Simplifies a household refrigeration appliance with a machine room saved through a floor pan for receiving a compressor resting on a mounting rail and two sheet steel housing side walls connected to the mounting rail in a spatial view from behind
Fig. 2
in a cutout, the floor pan, one of the side walls arranged above with its receptacles provided in a fold and the mounting rail with its contact elements, in an exploded view,
Fig. 3
excerpts in a sectional view of the floor pan and the side wall according to Figure 2 in the joining state and the mounting rail in the unsecured state and
Fig. 4
detail in a sectional view of the floor pan, the side wall and the mounting rail according to Figure 3, in the joined state.

Gemäß Figur 1 ist in raumbildlicher Rückansicht ein rein schematisch dargestelltes, als Tischgerät ausgebildetes Haushaltskältegerät 10 gezeigt, dessen wärmeisolierend ausgebildetes Gehäuse 11 an seiner Frontseite eine Tür 12 und an seiner der Tür 12 gegenüberliegenden Rückseite einen nischenartig freigesparten Maschinenraum 13 aufweist, welcher von der Rückseite des Gehäuses 11 her zugänglich ist. Der Maschinenraum 13 ist durch eine beispielsweise aus Kunststoffspritzguß einstückig hergestellte Bodenwanne 14 freigespart, welche den Maschinenraum 13 sowohl zur Wärmeisolation des Gehäuses 11 hin als auch seitlich begrenzt.According to Figure 1 is a purely schematically represented, as a Table-top household refrigerator 10 shown, its heat insulating formed housing 11 on its front side a door 12 and on its door 12 opposite niche-like machine room 13 which is accessible from the rear of the housing 11. The engine room 13 is made in one piece, for example from plastic injection molding Floor pan 14 saved, which the machine room 13 both for thermal insulation the housing 11 out and laterally limited.

Wie insbesondere aus Figur 2 hervorgeht, weist die Bodenwanne 14 an ihren Seitenwänden 15 (davon ist nur eine in aufgebrochenen Zustand dargestellt) mitangeformte Aufnahmenäpfe 16 auf, welche von der der Aufstellebene des Gerätes 10 zugewandten Unterseite der Seitenwände 15 her zugänglich sind. Benachbart zu den Aufnahmenäpfen 16 sind zylinderartig ausgebildete Befestigungsdome 17 vorgesehen (nur einer ist sichtbar), welche wie die Aufnahmenäpfe 16 von der Unterseite der Seitenwände 15 zugänglich sind und zur selbstschneidenden Einbringung von als Schrauben ausgebildeten Befestigungsmitteln 18 dienen. Mit Hilfe der Befestigungsmittel 18 wird eine als Trägerelement zum Abstellen eines im Maschinenraum 13 angeordneten Kältemittelverdichters 19 dienende Tragschiene 20 an der Bodenwanne 14 durch Einbringen der Befestigungsmittel 18 in die Befestigungsdome 17 festgesetzt. Die Tragschiene 20 ist über eine Erdungsleitung 21 mit dem Gehäuse des Kältemittelverdichters 19 elektrisch leitend verbunden, welcher wiederum über seine nicht gezeigte Netzanschlußleitung geerdet ist. Die Tragschiene 20 weist einen in Draufsicht rechteckförmigen Tragsteg 22 auf, welcher zu seiner Versteifung und somit zur Verbesserung seiner Trageigenschaften entlang seiner längeren Rechteckseiten mit nach unten ragenden Abwinklungen 23 versehen ist. Im Nahbereich seiner schmäleren Rechteckseiten weist der Tragsteg 22 freigeschnittene prismaartige Kontaktelemente 24 auf, welche im Längsschnitt dreieckförmig ausgebildet sind. Diese Kontaktelemente 24 sind auf der den Abwinklungen 23 gegenüberliegenden Seite aus der Ebene des Tragsteges 22 heraus abgewinkelt und mit ihren freien, zu einer schneidenartigen Kante 25 zusammenlaufenden Prismenschenkeln 26 parallel zur kürzeren Rechteckseite der Tragschiene 20 angeordnet. Benachbart zu den Kontaktelementen 24, diese zwischen sich aufnehmend, sind an der kürzeren Rechteckseite der Tragschiene 20 Langlöcher 27 vorgesehen, welche mit ihrer längeren Seite parallel zur längeren Rechteckseite der Tragschiene 20 verlaufen. Diese ist im Befestigungszustand mit an der Bodenwanne 14 mit an den seitlichen Abschnitten des wärmeisolierenden Gehäuses 11 vorgesehenen, durch spanlose Formgebung von vorbeschichteten, sogenannten "Coil-Coating-Stahlblech" hergestellten Seitenwandungen 30 elektrisch leitend verbunden. Die Seitenwände 30 sind in Form einer flachen Schale ausgebildet, deren Schalenboden 31 als seitliche Sichtfläche der Seitenwände 30 dient und deren durch Abwinklung erzeugte Schalenwände 32 den wärmeisolierenden Gehäusekorpus 11 an dessen seitlichen Randabschnitten umgreifen. Von den Schalenwänden 32 sind die der Aufstellebene des Haushaltskältegerätes 10 zugewandten Schalenwände 32 mit voneinander beabstandeten Langlöchern 33 ausgestattet, deren längere Seiten parallel zum Schalenboden 31 verlaufen. Zwischen den Langlöchern 33 weisen die der Aufstellebene zugewandten Schalenwände 32 voneinander beabstandete rechteckförmige Aussparungen 34 auf, deren längere Rechteckseiten ebenfalls senkrecht zum Schalenboden 31 ausgerichtet sind. As can be seen in particular from FIG. 2, the floor pan 14 has on its side walls 15 (only one of which is shown in the broken state) also molded Receptacles 16 on which facing the installation plane of the device 10 Underside of the side walls 15 are accessible here. Adjacent to the bowls 16 cylindrical attachment domes 17 are provided (only one is visible) which, like the receptacles 16 from the underside of the side walls 15 are accessible and for self-tapping insertion of screws trained fasteners 18 serve. With the help of the fastener 18 is one arranged as a support element for parking one in the machine room 13 Refrigerant compressor 19 serving mounting rail 20 on the floor pan 14 by insertion the fastening means 18 in the fastening domes 17. The mounting rail 20 is via a ground line 21 to the housing of the refrigerant compressor 19 electrically connected, which in turn via its not shown Power cord is grounded. The mounting rail 20 has a rectangular shape in plan view Support web 22, which is used for its stiffening and thus for improvement its wearing properties along its longer rectangular sides with down projecting bends 23 is provided. In the vicinity of its narrower rectangular sides the support web 22 has cut-out prism-like contact elements 24, which are triangular in longitudinal section. These contact elements 24 are on the side opposite the bends 23 from the plane of the supporting web 22 angled out and with their free, to a cutting edge 25th converging prism legs 26 parallel to the shorter side of the rectangle Support rail 20 arranged. Adjacent to the contact elements 24, these between absorbing, there are 20 elongated holes on the shorter rectangular side of the mounting rail 27 provided, which with its longer side parallel to the longer rectangular side of the Support rail 20 run. This is attached to the floor pan 14 with on the lateral sections of the heat-insulating housing 11 provided by non-cutting shaping of pre-coated, so-called "coil-coating steel sheet" produced side walls 30 electrically connected. The side walls 30 are formed in the form of a flat shell, the Shell bottom 31 serves as a lateral visible surface of the side walls 30 and through Bending generated shell walls 32 on the heat-insulating housing body 11 encompass its lateral edge sections. Of the shell walls 32 are the mounting level of the domestic refrigerator 10 facing shell walls 32 with spaced apart elongated holes 33, the longer sides parallel run to the tray bottom 31. Between the slots 33 have the On the installation level, facing shell walls 32 are rectangularly spaced apart Recesses 34, the longer sides of the rectangle also perpendicular to Shell bottom 31 are aligned.

Die aus Stahlblech gefertigten Seitenwände 30 sind türseitig mit nicht gezeigten aus Stahlblech gefertigten, als sogenannte Stirnbleche bezeichneten Querstreben verbunden, welche wie die Seitenwände 30 über die an der Tragschiene 20 festgesetzte Erdungsleitung 21 geerdet sind. Zur Erdung dient die Tragschiene 20, welche im Montagezustand anhand der die Langlöcher 27 am Tragsteg 22 und die Langlöcher 33 an den Seitenwänden 30 durchdringenden Befestigungsmittel 18 an der Bodenwanne 14 festgesetzt und elektrisch leitend mit den beiden Seitenwänden 30 verbunden ist. Die elektrische Verbindung zwischen der Tragschiene 20 und den Seitenwänden 30 ist durch die Kontaktelemente 24 erzeugt, welche beim Montieren der Tragschiene 20 in Pfeilrichtung (Fig. 2 und Fig. 3) in die Aussparungen 34 eingeführt sind und mit ihren seitlichen Prismenflanken 26 zur Anlage gegen die längeren Rechteckseiten der Aussparungen 34 bringbar sind (siehe Figur 3). Im Befestigungszustand der Tragschiene 20 deformieren die seitlichen Prismenflanken 26 zur Herstellung einer sicheren Erdung die Aussparungen 34 und sind von Aufnahmenäpfen 16 aufgenommen (siehe Figur 4). Durch den Deformationsvorgang schaben die seitlichen Flanken 26 entlang der längeren Rechteckseiten der Aussparungen 34, so daß gegebenenfalls dort die Leitfähigkeit hemmende Schichten, wie beispielsweise Korrosions- oder Lackschichten, abgeschabt werden und somit die elektrische Leitfähigkeit zwischen der über die Erdungsleitung 21 geerdeten Tragschiene 20 und den Seitenwänden 30 nach der Montage der Tragschiene 20 stets sichergestellt ist.The side walls 30 made of sheet steel are made of not shown on the door side Steel struts manufactured, so-called end plates connected, which, like the side walls 30, via the grounding line fixed to the mounting rail 20 21 are grounded. The mounting rail 20, which is in the assembled state, is used for grounding on the basis of the elongated holes 27 on the support web 22 and the elongated holes 33 the fastening means 18 penetrating the side walls 30 on the floor pan 14 is fixed and electrically connected to the two side walls 30. The electrical connection between the mounting rail 20 and the side walls 30 generated by the contact elements 24, which when mounting the mounting rail 20 in Arrow direction (Fig. 2 and Fig. 3) are inserted into the recesses 34 and with their lateral prism flanks 26 for abutment against the longer rectangular sides of the cutouts 34 can be brought (see Figure 3). When the mounting rail is attached 20 deform the lateral prism flanks 26 to create a safe ground the cutouts 34 and are received by receiving cups 16 (see FIG. 4). Due to the deformation process, the side flanks 26 scrape along the longer one Rectangular sides of the recesses 34, so that there the conductivity if necessary inhibiting layers, such as corrosion or lacquer layers, scraped off and thus the electrical conductivity between the ground line 21 grounded mounting rail 20 and the side walls 30 after assembly of the Support rail 20 is always ensured.

Claims (7)

  1. Domestic appliance, such as refrigerating apparatus, oven, washing machine, dishwasher or the like, with at least one detachable support element for electrically operated components, such as compressors, switches, motors or the like, the electrical connecting line of which has a protective conductor serving for earthing, and with at least one housing which has a useful space and which comprises electrically conductively constructed and contactable components such as side walls made of electrically conductive material, a door, struts and the like, which are at least substantially electrically conductively connected by way of contact elements and are electrically earthed, characterised in that the support element (20) comprises at least two prismatic contact elements (24) which in the fastened state of the support element (20) at the housing (11) or the components (30) are able to co-operate in force-locking and/or material-locking manner with receptacles (34) at the housing (11) or the components (30) and are thereby in electrically conductive contact with the housing (11) or the components (30).
  2. Domestic appliance according to claim 1, characterised in that the contact elements (24) are formed as contact spikes.
  3. Domestic appliance according to claim 1 or 2, characterised in that the contact elements (24) are integrally formed at the support element (20),
  4. Domestic appliance according to one of claims 1 to 3, characterised in that the contact elements (24) are formed to be triangular in longitudinal section and in the fastening state are capable of co-operation in force-locking and/or material locking manner with receptacles (34) at the housing (11) or the components (30).
  5. Domestic appliance according to one of claims 1 to 4, characterised in that the contact elements (24) are formed by cutting and bending of support element portions of the support element (20).
  6. Domestic appliance according to claim 4, characterised in that the receptacles (34) at the housing (11) or the components (30) are formed to be rectangular and are deformed on introduction of the contact elements (24).
  7. Refrigerating apparatus with a thermally-insulating housing which has at least one useful space and which comprises electrically conductively constructed and contactable components such as side walls or the like made of steel sheet and a motor compartment for receiving a refrigerant compressor, which rests on an electrically earthed carrier rail which is electrically conductively connected with the further components by way of the side walls, characterised in that the carrier rail (20) is constructed as a carrier element according to one of claims 1 to 5 and each of the side walls (30) according to claim 6.
EP99911733A 1998-03-04 1999-03-03 Household appliance Expired - Lifetime EP1060539B1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE19809224 1998-03-04
DE19809224A DE19809224A1 (en) 1998-03-04 1998-03-04 Home appliance
PCT/EP1999/001379 WO1999045610A1 (en) 1998-03-04 1999-03-03 Household appliance

Publications (2)

Publication Number Publication Date
EP1060539A1 EP1060539A1 (en) 2000-12-20
EP1060539B1 true EP1060539B1 (en) 2002-12-18

Family

ID=7859679

Family Applications (1)

Application Number Title Priority Date Filing Date
EP99911733A Expired - Lifetime EP1060539B1 (en) 1998-03-04 1999-03-03 Household appliance

Country Status (11)

Country Link
EP (1) EP1060539B1 (en)
CN (1) CN1292159A (en)
BG (1) BG64106B1 (en)
BR (1) BR9908460A (en)
DE (2) DE19809224A1 (en)
ES (1) ES2189402T3 (en)
HU (1) HU223244B1 (en)
PL (1) PL342707A1 (en)
RU (1) RU2200360C2 (en)
TR (1) TR200002547T2 (en)
WO (1) WO1999045610A1 (en)

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DE102004047360A1 (en) * 2004-09-29 2005-12-22 Siemens Ag Electrical contact element is in form of metal plate element that provides electrical connection between mechanically coupled plates
ATE530696T1 (en) * 2007-01-25 2011-11-15 Electrolux Home Prod Corp HOUSEHOLD ELECTRICAL APPLIANCE
DE102007052073B3 (en) 2007-10-31 2009-02-26 BSH Bosch und Siemens Hausgeräte GmbH Household appliance e.g. washing machine, has contact unit electrically connected with ground cable, arranged at cable duct and staying in electrical contact with metallic contact plate through mounting movement of cable duct
DE102008020883A1 (en) * 2008-04-25 2009-10-29 BSH Bosch und Siemens Hausgeräte GmbH Household appliance, in particular dishwasher
DE102008040619A1 (en) * 2008-07-22 2010-01-28 BSH Bosch und Siemens Hausgeräte GmbH Domestic appliance device
DE102010002043A1 (en) 2010-02-17 2011-08-18 BSH Bosch und Siemens Hausgeräte GmbH, 81739 Electric device
DE102011004592A1 (en) * 2011-02-23 2012-08-23 BSH Bosch und Siemens Hausgeräte GmbH Electric household appliance
DE102012005877A1 (en) * 2012-02-28 2013-08-29 Liebherr-Hausgeräte Lienz Gmbh Method for grounding electrically conductive component of household appliance e.g. cooling and freezing apparatus, involves using electrically conductive adhesive and electrically conductive adhesive tape as grounding element
DE102012209726A1 (en) 2012-06-11 2013-12-12 BSH Bosch und Siemens Hausgeräte GmbH Refrigerating appliance and method for its production
DE102012212401A1 (en) * 2012-07-16 2014-01-16 BSH Bosch und Siemens Hausgeräte GmbH Method for mounting a refrigeration device
CN202766880U (en) * 2012-07-27 2013-03-06 博西华电器(江苏)有限公司 Household appliance
ES2956782T3 (en) * 2014-10-21 2023-12-28 Bsh Hausgeraete Gmbh Cooking field device
DE102016224019A1 (en) 2016-12-02 2018-06-07 BSH Hausgeräte GmbH Domestic refrigerator with specific grounding connection
DE102018114240A1 (en) 2018-06-14 2019-12-19 Schaeffler Technologies AG & Co. KG roller bearing
CN109004381A (en) * 2018-08-07 2018-12-14 格力电器(杭州)有限公司 Compressor and air conditioner with it

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Also Published As

Publication number Publication date
CN1292159A (en) 2001-04-18
BG64106B1 (en) 2003-12-31
BR9908460A (en) 2000-11-14
DE19809224A1 (en) 1999-09-09
ES2189402T3 (en) 2003-07-01
HUP0101232A3 (en) 2003-02-28
EP1060539A1 (en) 2000-12-20
HU223244B1 (en) 2004-04-28
HUP0101232A2 (en) 2001-08-28
TR200002547T2 (en) 2001-02-21
WO1999045610A1 (en) 1999-09-10
BG104709A (en) 2001-03-30
PL342707A1 (en) 2001-07-02
DE59903830D1 (en) 2003-01-30
RU2200360C2 (en) 2003-03-10

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