EP1060539A1 - Household appliance - Google Patents

Household appliance

Info

Publication number
EP1060539A1
EP1060539A1 EP99911733A EP99911733A EP1060539A1 EP 1060539 A1 EP1060539 A1 EP 1060539A1 EP 99911733 A EP99911733 A EP 99911733A EP 99911733 A EP99911733 A EP 99911733A EP 1060539 A1 EP1060539 A1 EP 1060539A1
Authority
EP
European Patent Office
Prior art keywords
components
housing
contact elements
electrically conductive
household appliance
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP99911733A
Other languages
German (de)
French (fr)
Other versions
EP1060539B1 (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

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D23/00—General constructional features
    • F25D23/006—General constructional features for mounting refrigerating machinery components
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/42—Details
    • A47L15/4251—Details of the casing
    • A47L15/4274—Arrangement of electrical components, e.g. control units or cables
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/12—Casings; Tubs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R4/00—Electrically-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
    • H01R4/58—Electrically-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
    • H01R4/64—Connections 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 cold appliance, a stove, a washing machine, a 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 connection line of which serves as a protective earth conductor and with an at least one usable space housing, which has electrically conductive and touchable components such as side walls made of electrically conductive material, struts, a door or the like, which are at least largely electrically connected to one another and electrically grounded
  • connection between the mounting rail and the rare walls in particular poses problems because 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 prevents electrical contact between the mounting rail and the rare walls in the event that the two connection partners are only you are pressed against one another by a mechanical connection
  • 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 prevents electrical contact between the mounting rail and the rare walls in the event that the two connection partners are only you are pressed against one another by a mechanical connection
  • components which penetrate the lacquer layer such as so-called toothed disks or especially for to use the earthing provided components with claw-like attachments in order to always provide a secure earthing connection between the electrically conductive and touchable housing parts in the production of high-volume items of consumer goods.
  • additional components make the assembly process considerably more difficult and also involve the problem that the functionally
  • the invention has for its object to provide a reliable, the disadvantages of the prior art avoiding electrical grounding of the components made of electrically conductive material in a household appliance according to the preamble of claim 1 with simple, constructive measures
  • the support element has at least two contact elements which are able to interact with the housing or the components in an electrically conductive manner when the support element is attached to the housing or the components
  • the contact elements contact the carrier element particularly reliably, in particular if the latter is coated with lacquer or the like at the contact point, if, according to a preferred embodiment of the object of the invention, it is provided that the contact elements are designed as contact tips
  • the contact elements are triangular in longitudinal section and are able to interact in a force-fitting and / or material-locking manner with receptacles on the housing or the components
  • the receptacles which can have, for example, a rectangular, square or circular opening cross section, are deformed to a certain extent by the free flanks of the contact elements when the support element is mounted, as a result of which, as a result of this process, non-conductive layers at the contact points between the contact partners such as lacquer layers, corrosion layers or the like are safely scraped off and thus a safe electrical contact and thus a VDE-compliant earth connection of the contact elements to the housing or the components is already guaranteed by the assembly process without additional measures
  • the contact elements can be produced particularly inexpensively and easily for large-volume production if, according to a next advantageous embodiment of the subject of the invention, it is provided that the contact elements are formed by cutting and bending support element sections from the support element. Cutting bending means that the contact elements are separated and raised from the support element understand
  • the forming technology of the cutting bending of the contact elements also creates a certain degree of separation at their point of separation from the support element, which - 4 -
  • the receptacles on the housing or the components are rectangular and are deformed when the contact elements penetrate
  • the invention can be used particularly expediently in the case of a cold appliance with a warm-insulating housing which accommodates at least one useful space and which comprises electrically conductive and touchable components, such as side walls made of sheet steel or the like, and a machine room for receiving a cold medium compressor which rests on an electrically grounded mounting rail which is electrically conductively connected to the other components via the side walls if, according to a last preferred embodiment of the object of the invention, it is provided that the mounting rail is designed as a carrier element according to one of Claims 1 to 5 and each of the side walls according to Claim 6
  • Fig. 1 simplifies a household cooling device with a machine room saved through a floor pan for receiving a compressor resting on a mounting rail and two sheet steel housing walls connected to the mounting rail in a spatial view from behind - 5 -
  • FIG. 3 shows a detail in a sectional view of the floor pan and the side wall according to FIG. 2 in the jointed state and the mounting rail in the unsecured state and
  • FIG. 4 shows a section in section of the floor pan, the side wall and the mounting rail according to FIG. 3, in the joint state
  • FIG. 1 a purely schematically illustrated household cold appliance 10, shown as a table-top device, is shown in a spatial rear view, the heat-insulating housing 11 of which has a door 12 on its front side and a niche-like free machine room 13 on its rear side opposite the door 12, which is from the rear side of the housing 11 is accessible.
  • the machine room 13 is freed up by a base trough 14, for example made of one piece from plastic injection molding, which limits the machine room 13 both for heat insulation of the housing 11 and laterally
  • the base trough 14 has molded-on receptacle 16 on its side walls 15 (only one of which is shown in the broken state), which are accessible from the underside of the side walls 15 facing the installation level of the device 10
  • the mounting bosses 16 are provided with cylindrical fixing domes 17 (only one is visible) which, like the receiving boss 16, are accessible from the underside of the side walls 15 and are used for the self-tapping insertion of fasteners 18 designed as screws
  • the support rail 20 is electrically conductive to the housing of the refrigerant compressor 19 via an earth line 21 connected, which in turn is grounded via its mains connection line (not shown).
  • the support rail 20 has a support web 22 which is rectangular in plan view and on which, in order to reinforce it and thus to improve its wearing properties, it is provided with downward angled portions 23 along its longer rectangular sides Rectangle-
  • the support web 22 rarely has cut-out prism-like contact elements 24, which are triangular in longitudinal section.
  • contact elements 24 are angled out of the plane of the support web 22 on the side opposite the angled portions 23 and parallel with their free prism legs 26 converging to a cutting-like edge 25 arranged to the shorter rectangle side of the mounting rail 20
  • the side walls 30 are formed in the form of a flat shell, the shell bottom 31 of which serves as a side visible surface of the side walls 30 and whose shell walls 32, which are produced by angling, encompass the warm, insulating housing body 11 on the side edge portions thereof Elongated holes 33 are equipped, the longer sides of which run parallel to the shell bottom 31. Between the elongated holes 33, the shell walls 32 facing the installation level have rectangular recesses 34 spaced apart from one another, the longer rectangular sides of which are also oriented perpendicular to the shell bottom 31
  • the side walls 30 made of sheet steel are connected on the door side to cross struts, not shown, made from sheet steel, referred to as end plates, which, like the side walls 30, are grounded via the grounding line 21 fixed to the mounting rail 20 the elongated holes 27 on the supporting web 22 and the elongated holes 33 on the rare walls 30 penetrating fastening means 18 are fixed to the floor pan 14 and are connected in an electrically conductive manner to the two rare walls 30.
  • the electrical connection between the support rail 20 and the rare walls 30 is produced by the contact elements 24, which are inserted into the recesses 34 when mounting the mounting rail 20 in the direction of the arrow (FIGS.

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Thermal Sciences (AREA)
  • General Engineering & Computer Science (AREA)
  • Elimination Of Static Electricity (AREA)
  • Push-Button Switches (AREA)
  • Food-Manufacturing Devices (AREA)
  • Devices That Are Associated With Refrigeration Equipment (AREA)
  • Compressor (AREA)
  • Detail Structures Of Washing Machines And Dryers (AREA)
  • Refrigerator Housings (AREA)

Abstract

The invention relates to a household appliance (10), such as a refrigeration appliance, a stove, a washing machine, a dishwasher or the like, having at least one detachable supporting element (20) for electrically operated components, such as compressors, switches, motors or the like, whose electric connection lines have a protective conductor (21) which serves as a ground. The inventive household appliance has at least one housing which accommodates a useful storage area. Said housing comprises components which are designed to be electrically conductive and which can be contacted. The components are, for example, side walls (15), braces, a door or the like which are made of an electrically conductive material. Said components are electroconductively connected to one another to a substantial degree and are grounded. The supporting element has at least two contact elements (24) which are capable of interacting with the housing (11) or with the components in an electrically conductive manner when the supporting element is in a fastened state on the housing or on the components.

Description

Haushaltsgerät Home appliance
Die Erfindung betrifft ein Haushaltsgerät, wie ein Kaltegerat, einen Herd, eine Waschmaschine, einen Geschirrspüler oder dergleichen, mit wenigstens einem losbaren Tra- gerelement 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 beruhrbare Bauteile wie aus elektrisch leitendem Material gefertigte Seitenwande, Verstrebungen, eine Tur oder der- gleichen aufweist, welche zumindest weitestgehend elektrisch leitend miteinander verbunden und elektrisch geerdet sindThe invention relates to a household appliance, such as a cold appliance, a stove, a washing machine, a 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 connection line of which serves as a protective earth conductor and with an at least one usable space housing, which has electrically conductive and touchable components such as side walls made of electrically conductive material, struts, a door or the like, which are at least largely electrically connected to one another and electrically grounded
Bei Haushaltsgeraten ist es Vorschrift, deren beruhrbare, aus elektrisch leitendem Material gefertigten Gehauseteile, welche im Fall eines Isolationsfehlers Netzspannung annehmen können, dauerhaft und zuverlässig mit dem Schutzkontakt des Geratestek- kers zu kontaktierenIn the case of household appliances, it is a requirement to permanently and reliably contact their touchable housing parts made of electrically conductive material, which can assume mains voltage in the event of an insulation fault, with the protective contact of the appliance plug
Hierzu ist es auf dem Gebiet der Kaltegerate seit langem Stand der Technik, dessen über die Netzanschlußleitung geerdete Verdichter an ihrem Gehäuse mit einer Er- dungsleitung 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 Seltenwanden und über diese mit den weiteren be- ruhrbaren und elektrisch leitenden Gehauseteilen elektrisch kontaktiert Von diesen zur Erdung der Gehauseteile dienenden Kontaktschnittstellen wirft insbesondere die Ver- bindung zwischen der Tragschiene und den Seltenwanden Probleme auf da zur Herstellung der letzteren ein vorbeschichtetes, als "Coil-Coating-Stahlblech" bezeichnetes Material zum Einsatz kommt, dessen Oberflache mit einer Lackschicht versehen ist, welche an sich eine elektrische Kontaktierung zwischen der Tragschiene und den Seltenwanden für den Fall unterbindet wenn die beiden Verbindungspartner lediglich durch eine mechanische Verbindung aneinander gepreßt sind Um dieses Kontaktie- rungsproblem 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 Stuckzahlen beaufschlagten Fertigung von Konsumguterartikeln stets eine sichere Erdungsverbindung zwischen den elektrisch leitenden und beruhrbaren Gehauseteilen herbeizufuhren Derartige zusatzliche 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 abhangig istFor this purpose, it has long been state of the art in the field of cold devices that the compressors of the compressor, which are grounded via the mains connection line, have to be connected to a grounding line on their housing, which in turn is electrically conductively connected to a mounting rail carrying the compressor The rare walls made of sheet steel and electrically contacted via them with the other touchable and electrically conductive housing parts. Of these contact interfaces, which serve to ground the housing parts, the connection between the mounting rail and the rare walls in particular poses problems because 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 prevents electrical contact between the mounting rail and the rare walls in the event that the two connection partners are only you are pressed against one another by a mechanical connection In order to eliminate this contacting problem, it has gone over to components which penetrate the lacquer layer, such as so-called toothed disks or especially for to use the earthing provided components with claw-like attachments in order to always provide a secure earthing connection between the electrically conductive and touchable housing parts in the production of high-volume items of consumer goods. However, such additional components make the assembly process considerably more difficult and also involve the problem that the functionally reliable Contacting is dependent to a certain extent on the work care of the workforce
Ferner ist es auf dem Gebiet der Geschirrspüler Stand der Technik die zur Erdung der aus elektrischem Material gefertigten und beruhrbaren Gehauseteile mit Ansteckfahnen auszustatten, welche über Steckhulsen an Schutzleiterdrahte angekoppelt sind, welche in Art eines Kabelbaums mit bedarfsgemaß unterschiedlich langen Schutzlei- terdrahten von einer zentralen Erdungsstelle im Gerategehause ausgehen Hier ist zwar durch die direkte Kontaktierung der einzelnen, unter Umstanden im Falle eines Isolationsfehiers unter Netzspannung stehenden Bauteile mit den Schutzleitern stets eine sichere Erdung dieser Bauteile gewährleistet, jedoch verursacht die Anfertigung der Kabelbaume einerseits und deren Montage im Gerategehause andererseits eine kostenintensive FertigungFurthermore, it is state of the art in the field of dishwashers to equip the housing parts made of electrical material and touchable housing parts with plug-in lugs, which are coupled to protective conductor wires via plug-in sleeves, which in the manner of a cable harness with protective conductor wires of different lengths, as required, from a central grounding point Going out in the device house Here, the direct contacting of the individual components, which may be under voltage in the case of an insulation fault with the protective conductors, always guarantees safe grounding of these components, but the production of the cable harnesses on the one hand and their assembly in the device house on the other hand causes cost-intensive production
Der Erfindung hegt 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 schaffenThe invention has for its object to provide a reliable, the disadvantages of the prior art avoiding electrical grounding of the components made of electrically conductive material in a household appliance according to the preamble of claim 1 with simple, constructive measures
Diese Aufgabe wird gemäß der Erfindung dadurch gelost, daß das Tragerelement wenigstens zwei Kontaktelemente aufweist, welche im Befestigungszustand des Tragerelementes am Gehäuse oder den Bauteilen elektrisch leitend mit dem Gehäuse oder den Bauteilen zusammenzuwirken vermögenThis object is achieved according to the invention in that the support element has at least two contact elements which are able to interact with the housing or the components in an electrically conductive manner when the support element is attached to the housing or the components
Durch die erfindungsgemaße Losung ist ohne zusatzliche die elektrische Kontaktierung sicherstellende Bauteile, lediglich durch die Montage und das Befestigen des Tragerelements eine zuverlässige elektrische Kontaktierung und somit Erdung der im Falle eines Isolationsfehlers Spannung fuhrenden Bauteile gewahrleistet Durch die Teilereduktion ist der Automatisierungsgrad des Haushaltsgerätes zusätzlich deutlich gesteigert, wobei gleichzeitig zur Erreichung einer hohen Fertigungsqualltat die Anforderung an die Arbeitssorgfalt des Fertigungspersonals und somit zufällige Fehler bei der Montage deutlich herabgesetzt sind - 3 -Thanks to the solution according to the invention, reliable electrical contacting and thus grounding of the components carrying voltage in the event of an insulation fault is ensured without additional components ensuring the electrical contacting, merely by mounting and fastening the support element. The reduction in parts further increases the degree of automation of the household appliance, At the same time, to achieve a high level of manufacturing quality, the demands on the work care of the production personnel and thus random errors during assembly are significantly reduced - 3 -
Besonders sicher kontaktieren die Kontaktelemente das Tragerelement, insbesondere wenn dieses an der Kontaktstelle mit Lack oder dergleichen beschichtet ist, wenn nach einer bevorzugten Ausfuhrungsform des Gegenstandes der Erfindung vorgesehen ist, daß die Kontaktelemente als Kontaktspitzen ausgebildet sindThe contact elements contact the carrier element particularly reliably, in particular if the latter is coated with lacquer or the like at the contact point, if, according to a preferred embodiment of the object of the invention, it 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 Tragerelements ergibt sich, wenn nach einer nächsten vorteilhaften Ausgestaltung des Gegenstandes der Erfindung vorgese- hen ist, daß die Kontaktelemente einstuckig an das Tragerelement mitangeformt sindA particularly low assembly and handling effort and, as a result, a particularly time-saving production of the carrier element results if, according to a next advantageous embodiment of the subject matter of the invention, it is provided that the contact elements are integrally molded onto the carrier element
Nach einer weiteren bevorzugten Ausfuhrungsform des Gegenstandes der Erfindung ist vorgesehen, daß die Kontakteiemente im Längsschnitt dreieckformig ausgebildet sind und im Befestigungszustand mit Aufnahmen am Gehäuse oder den Bauteilen kraft- und/oder stoffschlussig zusammenzuwirken vermögenAccording to a further preferred embodiment of the subject matter of the invention, it is provided that the contact elements are triangular in longitudinal section and are able to interact in a force-fitting and / or material-locking manner with receptacles on the housing or the components
Durch die dreieckformige Ausbildung der Kontaktelemente werden die Aufnahmen, welche beispielsweise einen rechteckformigen, quadratischen oder kreisrunden Öffnungsquerschnitt aufweisen können, beim Montieren des Tragerelementes in gewisser Weise durch die freien Flanken der Kontaktelemente deformiert, wodurch infolge dieses Vorganges an den Beruhrungsstellen zwischen den Kontaktpartnern nicht leitende Schichten, wie Lackschichten, Korrosionsschichten oder dergleichen sicher abgeschabt werden und somit bereits durch den Montagevorgang ohne zusatzliche Maßnahmen eine sichere elektrische Kontaktierung und somit eine VDE-gerechte Er- dungsverbindung der Kontaktelemente mit dem Gehäuse oder den Bauteilen gewährleistet istDue to the triangular design of the contact elements, the receptacles, which can have, for example, a rectangular, square or circular opening cross section, are deformed to a certain extent by the free flanks of the contact elements when the support element is mounted, as a result of which, as a result of this process, non-conductive layers at the contact points between the contact partners such as lacquer layers, corrosion layers or the like are safely scraped off and thus a safe electrical contact and thus a VDE-compliant earth connection of the contact elements to the housing or the components is already guaranteed by the assembly process without additional measures
Besonders preisgünstig und einfach großseriengerecht hergestellt werden können die Kontaktelemente, wenn nach einer nächsten vorteilhaften Ausgestaltung des Gegen- Standes der Erfindung vorgesehen ist daß die Kontaktelemente durch Schneidbiegen von Tragerelementabschnitten aus dem Tragerelement gebildet sind Unter Schneidbiegen ist das Heraustrennen und Hochstellen der Kontaktelemente aus dem Tragerelement zu verstehenThe contact elements can be produced particularly inexpensively and easily for large-volume production if, according to a next advantageous embodiment of the subject of the invention, it is provided that the contact elements are formed by cutting and bending support element sections from the support element. Cutting bending means that the contact elements are separated and raised from the support element understand
Durch die Umformtechnik des Schneidbiegens der Kontaktelemente entsteht zudem an deren Trennstelle zum Tragerelement ein gewisser Trenngrad welcher die scha- - 4 -The forming technology of the cutting bending of the contact elements also creates a certain degree of separation at their point of separation from the support element, which - 4 -
bende Wirkung der im Längsschnitt dreieckformigen Kontaktelemente beim Eindringen in die Aufnahme am Gehäuse oder den Bauteilen unterstutztsupporting effect of the triangular contact elements in longitudinal section when penetrating into the receptacle on the housing or the components
Gemäß einer weiteren bevorzugten Ausfuhrungsform des Gegenstandes der Erfin- düng ist vorgesehen, daß die Aufnahmen am Gehäuse oder den Bauteilen rechteck- formig ausgebildet sind und beim Eindringen der Kontaktelemente deformiert werdenAccording to a further preferred embodiment of the object of the invention, it is provided that the receptacles on the housing or the components are rectangular and are deformed when the contact elements penetrate
Hierdurch ist nicht nur eine sichere Kontaktierung des Tragerelements über dessen Kontaktelemente mit dem Gehäuse oder den Bauteilen gewährleistet, sondern durch die rechteckformige Ausbildung der Aufnahmen auch sichergestellt, daß die dreieckformigen Kontaktelemente auch im "worst-case-Montage-Toleranzfall" durch die längliche Ausbildung der Aufnahme stets sicher zusammenfugbar sindThis not only ensures reliable contacting of the carrier element via its contact elements with the housing or the components, but also ensures that the triangular contact elements are formed in the "worst-case assembly tolerance case" due to the elongated configuration of the receptacles by the rectangular configuration of the receptacles Recording are always securely merged
Besonders zweckmäßig einsetzbar ist die Erfindung bei einem Kaltegerat mit einem wenigstens einen Nutzraum aufnehmenden warmeisoherenden Gehäuse, welches elektrisch leitend ausgebildete und beruhrbare Bauteile wie aus Stahlblech gefertigte Seitenwande oder dergleichen und einen Maschinenraum zur Aufnahme eines Kal- temittelverdichters umfaßt, welcher auf einer elektrisch geerdeten Tragschiene ruht, welche elektrisch leitend über die Seitenwande mit den weiteren Bauteilen verbunden ist, wenn nach einer letzten bevorzugten Ausfuhrungsform des Gegenstandes der Erfindung vorgesehen ist, daß die Tragschiene als Tragerelement nach einem der Ansprüche 1 bis 5 und jede der Seitenwande nach Anspruch 6 ausgebildet istThe invention can be used particularly expediently in the case of a cold appliance with a warm-insulating housing which accommodates at least one useful space and which comprises electrically conductive and touchable components, such as side walls made of sheet steel or the like, and a machine room for receiving a cold medium compressor which rests on an electrically grounded mounting rail which is electrically conductively connected to the other components via the side walls if, according to a last preferred embodiment of the object of the invention, it is provided that the mounting rail is designed as a carrier element according to one of Claims 1 to 5 and each of the side walls according to Claim 6
Die Erfindung ist in der nachfolgenden Beschreibung am Beispiel eines in den beige- fugten Zeichnungen vereinfacht dargestellten Haushaltskaltegerates erläutertThe invention is explained in the following description using the example of a household refrigeration device shown in simplified form in the accompanying drawings
Es zeigenShow it
Fig 1 vereinfacht ein Haushaltskaltegerat mit einem durch eine Bodenwanne freigesparten Maschinenraum zur Aufnahme eines auf einer Tragschiene ruhenden Verdichters sowie zwei aus Stahlblech gefertigte, mit der Tragschiene verbundene Gehauseseitenwande in raumbildlicher Ansicht von hinten - 5 -Fig. 1 simplifies a household cooling device with a machine room saved through a floor pan for receiving a compressor resting on a mounting rail and two sheet steel housing walls connected to the mounting rail in a spatial view from behind - 5 -
Fig 2 in einem Ausschnitt, die Bodenwanne, eine der darüber angeordneten Seitenwande mit ihren in einem Umbug vorgesehenen Aufnahmen und die Tragschiene mit ihren Kontaktelementen, in Explosionsdarstellung,2 in a cutout, the floor pan, one of the side walls arranged above it with its receptacles provided in a fold and the mounting rail with its contact elements, in an exploded view,
Fig 3 ausschnittweise in Schnittdarstellung die Bodenwanne und die Seitenwand gemäß Figur 2 im Fugezustand sowie die Tragschiene im unbefestigten Zustand und3 shows a detail in a sectional view of the floor pan and the side wall according to FIG. 2 in the jointed state and the mounting rail in the unsecured state and
Fig 4 ausschnittsweise in Schnittdarstellung die Bodenwanne, die Seitenwand und die Tragschiene gemäß Figur 3, im Fugezustand4 shows a section in section of the floor pan, the side wall and the mounting rail according to FIG. 3, in the joint state
Gemäß Figur 1 ist in raumbildlicher Ruckansicht ein rein schematisch dargestelltes, als Tischgerat ausgebildetes Haushaltskaltegerat 10 gezeigt, dessen warmeisolierend ausgebildetes Gehäuse 1 1 an seiner Frontseite eine Tur 12 und an seiner der Tur 12 gegenüberliegenden Ruckseite einen nischenartig freigesparten Maschinenraum 13 aufweist, welcher von der Ruckseite des Gehäuses 11 her zuganglich ist Der Maschinenraum 13 ist durch eine beispielsweise aus Kunststoffspritzguß einstuckig hergestellte Bodenwanne 14 freigespart, welche den Maschinenraum 13 sowohl zur Warme- isolation des Gehäuses 11 hin als auch seitlich begrenztAccording to FIG. 1, a purely schematically illustrated household cold appliance 10, shown as a table-top device, is shown in a spatial rear view, the heat-insulating housing 11 of which has a door 12 on its front side and a niche-like free machine room 13 on its rear side opposite the door 12, which is from the rear side of the housing 11 is accessible. The machine room 13 is freed up by a base trough 14, for example made of one piece from plastic injection molding, which limits the machine room 13 both for heat insulation of the housing 11 and laterally
Wie insbesondere aus Figur 2 hervorgeht, weist die Bodenwanne 14 an ihren Seiten- wanden 15 (davon ist nur eine in aufgebrochenen Zustand dargestellt) mitangeformte Aufnahmenapfe 16 auf, welche von der der Aufstellebene des Gerätes 10 zugewandten Unterseite der Seitenwande 15 her zugänglich sind Benachbart zu den Aufnah- menapfen 16 sind zylinderartig ausgebildete Befestigungsdome 17 vorgesehen (nur einer ist sichtbar), welche wie die Aufnahmenapfe 16 von der Unterseite der Seitenwande 15 zuganglich sind und zur selbstschneidenden Einbringung von als Schrauben ausgebildeten Befestigungsmitteln 18 dienen Mit Hilfe der Befestigungsmittel 18 wird eine als Tragerelement zum Abstellen eines im Maschinenraum 13 angeordneten Kaltemittelverdichters 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 Kaltemittelverdichters 19 elektrisch leitend verbunden, welcher wiederum über seine nicht gezeigte Netzanschlußleitung geerdet ist Die Tragschiene 20 weist einen in Draufsicht recht- eckformigen 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 schmaleren Rechteck- selten weist der Tragsteg 22 freigeschnittene prismaartige Kontaktelemente 24 auf, welche im Längsschnitt dreieckformig 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 Langlocher 27 vorgesehen, welche mit ihrer längeren Seite parallel zur längeren Rechteckseite der Tragschiene 20 verlaufen Diese ist im Befestigungszu- stand mit an der Bodenwanne 14 mit an den seitlichen Abschnitten des warmeisoherenden Gehäuses 11 vorgesehenen, durch spanlose Formgebung von vorbeschichteten, sogenannten "Coil-Coating-Stahlblech" hergestellten Seitenwandungen 30 elektrisch leitend verbunden Die Seitenwande 30 sind in Form einer flachen Schale ausgebildet, deren Schalenboden 31 als seitliche Sichtflache der Seitenwande 30 dient und deren durch Abwinklung erzeugte Schalenwande 32 den warmeisoherenden Gehausekorpus 11 an dessen seitlichen Randabschnitten umgreifen Von den Schalenwanden 32 sind die der Aufstellebene des Haushaltskaltegerates 10 zugewandten Schalenwande 32 mit voneinander beabstandeten Langlochern 33 ausgestattet, deren längere Seiten parallel zum Schalenboden 31 verlaufen Zwischen den Langlochern 33 weisen die der Aufstellebene zugewandten Schalenwande 32 voneinander beabstandete rechteckformige Aussparungen 34 auf, deren längere Rechteckseiten ebenfalls senkrecht zum Schalenboden 31 ausgerichtet sindAs can be seen in particular from FIG. 2, the base trough 14 has molded-on receptacle 16 on its side walls 15 (only one of which is shown in the broken state), which are accessible from the underside of the side walls 15 facing the installation level of the device 10 The mounting bosses 16 are provided with cylindrical fixing domes 17 (only one is visible) which, like the receiving boss 16, are accessible from the underside of the side walls 15 and are used for the self-tapping insertion of fasteners 18 designed as screws Carrier element for parking a refrigerant compressor 19 arranged in the machine room 13 serving support rail 20 fixed to the floor pan 14 by introducing the fasteners 18 into the fastening domes 17. The support rail 20 is electrically conductive to the housing of the refrigerant compressor 19 via an earth line 21 connected, which in turn is grounded via its mains connection line (not shown). The support rail 20 has a support web 22 which is rectangular in plan view and on which, in order to reinforce it and thus to improve its wearing properties, it is provided with downward angled portions 23 along its longer rectangular sides Rectangle- The support web 22 rarely has cut-out prism-like contact elements 24, which are triangular in longitudinal section. These contact elements 24 are angled out of the plane of the support web 22 on the side opposite the angled portions 23 and parallel with their free prism legs 26 converging to a cutting-like edge 25 arranged to the shorter rectangle side of the mounting rail 20 Adjacent to the contact elements 24, which receive them between them, on the shorter rectangle side of the mounting rail 20 elongated holes 27 are provided, which run parallel with their longer side to the longer rectangle side of the mounting rail 20 on the floor pan 14 with side walls 30 provided on the side sections of the warm-insulating housing 11 and produced by non-cutting shaping of pre-coated, so-called "coil-coating steel sheet". The side walls 30 are formed in the form of a flat shell, the shell bottom 31 of which serves as a side visible surface of the side walls 30 and whose shell walls 32, which are produced by angling, encompass the warm, insulating housing body 11 on the side edge portions thereof Elongated holes 33 are equipped, the longer sides of which run parallel to the shell bottom 31. Between the elongated holes 33, the shell walls 32 facing the installation level have rectangular recesses 34 spaced apart from one another, the longer rectangular sides of which are also oriented perpendicular to the shell bottom 31
Die aus Stahlblech gefertigten Seitenwande 30 sind turseitig mit nicht gezeigten aus Stahlblech gefertigten, als sogenannte Stirnbleche bezeichneten Querstreben verbunden, welche wie die Seitenwande 30 über die an der Tragschiene 20 festgesetzte Erdungsleitung 21 geerdet sind Zur Erdung dient die Tragschiene 20, welche im Montagezustand anhand der die Langlocher 27 am Tragsteg 22 und die Langlocher 33 an den Seltenwanden 30 durchdringenden Befestigungsmittel 18 an der Bodenwanne 14 festgesetzt und elektrisch leitend mit den beiden Seltenwanden 30 verbunden ist Die elektrische Verbindung zwischen der Tragschiene 20 und den Seltenwanden 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 Aus- sparungen 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 Aufnahmenapfen 16 aufgenommen (siehe Figur 4) - 7 -The side walls 30 made of sheet steel are connected on the door side to cross struts, not shown, made from sheet steel, referred to as end plates, which, like the side walls 30, are grounded via the grounding line 21 fixed to the mounting rail 20 the elongated holes 27 on the supporting web 22 and the elongated holes 33 on the rare walls 30 penetrating fastening means 18 are fixed to the floor pan 14 and are connected in an electrically conductive manner to the two rare walls 30. The electrical connection between the support rail 20 and the rare walls 30 is produced by the contact elements 24, which are inserted into the recesses 34 when mounting the mounting rail 20 in the direction of the arrow (FIGS. 2 and 3) and can be brought with their lateral prism flanks 26 to bear against the longer rectangular sides of the recesses 34 (see FIG. 3) in the fastening state of the mounting rail 20 deform the lateral prism flanks 26 to produce a safe grounding, the cutouts 34 and are received by receiving pins 16 (see FIG. 4) - 7 -
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. Due to the deformation process, the side flanks 26 scrape along the longer rectangular sides of the cutouts 34, so that layers which inhibit conductivity, such as, for example, corrosion or lacquer layers, are scraped off there and thus the electrical conductivity between the support rail 20 grounded via the grounding line 21 and the Side walls 30 is always ensured after the mounting of the mounting rail 20.

Claims

- 8 -- 8th -
Patentansprücheclaims
Haushaltsgerät, wie Kaltegerat, Herd, Waschmaschine, Geschirrspüler oder dergleichen, mit wenigstens einem losbaren Tragerelement 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 beruhrbare Bauteile wie aus elek- tnsch leitendem Material gefertigte Seitenwande, eine Tur, Verstrebungen oder dergleichen umfaßt, welche zumindest weitestgehend elektrisch leitend miteinander verbunden und elektrisch geerdet sind, d a d u r c h g e k e n n z e i c h n e t, daß das Tragerelement (20) wenigstens zwei Kontaktelemente (24) aufweist, welche im Befestigungszustand des Tragerelementes (20) am Gehäuse (1 1 ) oder den Bauteilen (30) elektrisch leitend mit dem Gehäuse (11 ) oder den Bauteilen (30) zusammenzuwirken vermögenHousehold appliance, such as a cold appliance, stove, 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 connection line of which has a protective conductor serving for grounding and with a housing which accommodates at least one useful space, which comprises electrically conductive and touchable components such as side walls made of electrically conductive material, a door, struts or the like which are at least largely electrically conductively connected to one another and electrically grounded, characterized in that the carrier element (20) has at least two contact elements (24 ) which, when the support element (20) is attached to the housing (1 1) or the components (30), are able to interact in an electrically conductive manner with the housing (11) or the components (30)
Haushaltsgerät nach Anspruch 1 , dadurch gekennzeichnet daß die Kontaktelemente (24) als Kontaktspitzen ausgebildet sindHousehold appliance according to claim 1, characterized in that the contact elements (24) are designed as contact tips
Haushaltsgerät nach Anspruch 1 oder 2, dadurch gekennzeichnet, daß die Kontaktelemente (24) einstuckig an das Tragerelement (20) mitangeformt sindHousehold appliance according to claim 1 or 2, characterized in that the contact elements (24) are integrally formed on the support element (20)
Haushaltsgerät nach einem der Ansprüche 1 bis 3, dadurch gekennzeichnet, daß die Kontaktelemente (24) im Längsschnitt dreieckformig ausgebildet sind und im Befestigungszustand mit Aufnahmen (34) am Gehäuse (1 1) oder den Bauteilen (30) kraft- und/oder stoffschlussig zusammenzuwirken vermögen - 9 -Household appliance according to one of claims 1 to 3, characterized in that the contact elements (24) are triangular in longitudinal section and in the fastening state to cooperate with receptacles (34) on the housing (1 1) or the components (30) in a force and / or material connection capital - 9 -
5 Haushaltsgerät nach einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, daß die Kontaktelemente (24) durch Schneidbiegen von Tragerelemen- tabschnitten des Tragereiements (20) gebildet sind5 Household appliance according to one of claims 1 to 4, characterized in that the contact elements (24) are formed by cutting bending of Tragerelemen- sections of the support member (20)
6 Haushaltsgerät nach Anspruch 4, dadurch gekennzeichnet, daß die Aufnahmen (34) am Gehäuse (11) oder den Bauteilen (30) rechteckformig ausgebildet sind und beim Einbringen der Kontaktelemente (24) deformiert werden6 Household appliance according to claim 4, characterized in that the receptacles (34) on the housing (11) or the components (30) are rectangular and are deformed when the contact elements (24) are introduced
7 Kaltegerat mit einem wenigstens einen Nutzraum aufnehmenden warmeisoherenden Gehäuse, welches elektrisch leitend ausgebildete und beruhrbare Bauteile wie aus Stahlblech gefertigte Seitenwande oder dergleichen und einen Maschinenraum zur Aufnahme eines Kaltemittelverdichters umfaßt, welcher auf einer elektrisch geerdeten Tragschiene ruht, welche elektrisch leitend über die Seitenwande mit den weiteren Bauteilen verbunden ist, dadurch gekennzeichnet, daß die Tragschiene (20) als Tragerelement nach einem der Ansprüche 1 bis 5 und jede der Seitenwande (30) nach Anspruch 6 ausgebildet ist 7 Kaltegerat with a at least one usable space warmisoher housing which includes electrically conductive and touchable components such as 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 conductive over the side walls with the is connected to other components, characterized in that the support rail (20) is designed as a support 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 true EP1060539A1 (en) 2000-12-20
EP1060539B1 EP1060539B1 (en) 2002-12-18

Family

ID=7859679

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EP99911733A Expired - Lifetime EP1060539B1 (en) 1998-03-04 1999-03-03 Household appliance

Country Status (11)

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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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Also Published As

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PL342707A1 (en) 2001-07-02
DE19809224A1 (en) 1999-09-09
EP1060539B1 (en) 2002-12-18
WO1999045610A1 (en) 1999-09-10
HUP0101232A3 (en) 2003-02-28
TR200002547T2 (en) 2001-02-21
RU2200360C2 (en) 2003-03-10
CN1292159A (en) 2001-04-18
BR9908460A (en) 2000-11-14
DE59903830D1 (en) 2003-01-30
ES2189402T3 (en) 2003-07-01
HU223244B1 (en) 2004-04-28
HUP0101232A2 (en) 2001-08-28
BG104709A (en) 2001-03-30
BG64106B1 (en) 2003-12-31

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