WO2017182028A1 - Dispositif de fixation pour fixer une plaque formant bride à un boîtier d'armoire de distribution et boîtier d'armoire de distribution correspondant - Google Patents

Dispositif de fixation pour fixer une plaque formant bride à un boîtier d'armoire de distribution et boîtier d'armoire de distribution correspondant Download PDF

Info

Publication number
WO2017182028A1
WO2017182028A1 PCT/DE2017/100247 DE2017100247W WO2017182028A1 WO 2017182028 A1 WO2017182028 A1 WO 2017182028A1 DE 2017100247 W DE2017100247 W DE 2017100247W WO 2017182028 A1 WO2017182028 A1 WO 2017182028A1
Authority
WO
WIPO (PCT)
Prior art keywords
screw
section
threaded
flange plate
passage opening
Prior art date
Application number
PCT/DE2017/100247
Other languages
German (de)
English (en)
Inventor
Achim Bloh
Original Assignee
Rittal Gmbh & Co. Kg
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 Rittal Gmbh & Co. Kg filed Critical Rittal Gmbh & Co. Kg
Publication of WO2017182028A1 publication Critical patent/WO2017182028A1/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B35/00—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws
    • F16B35/04—Screw-bolts; Stay-bolts; Screw-threaded studs; Screws; Set screws with specially-shaped head or shaft in order to fix the bolt on or in an object
    • 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
    • H01R4/28—Clamped connections, spring connections
    • H01R4/30—Clamped connections, spring connections utilising a screw or nut clamping member
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/16—Earthing arrangements
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
    • H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
    • H02B1/26—Casings; Parts thereof or accessories therefor
    • H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
    • H02B1/305—Cable entries
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B2200/00—Constructional details of connections not covered for in other groups of this subclass
    • F16B2200/93—Fastener comprising feature for establishing a good electrical connection, e.g. electrostatic discharge or insulation feature
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B33/00—Features common to bolt and nut
    • F16B33/004—Sealing; Insulation
    • 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
    • H01R4/26—Connections in which at least one of the connecting parts has projections which bite into or engage the other connecting part in order to improve the contact
    • 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 is based on a fastening arrangement for fastening a flange plate to a control cabinet housing, wherein the fastening arrangement has at least one screw connection, with which the flange plate is fixed to an opening of the control cabinet housing,
  • the screw connection has a threaded receptacle in the edge region of the opening for receiving a screw
  • a screw has at its end opposite a screw head a threaded portion having a corresponding to an internal thread of the threaded receptacle external thread, wherein the screw electrically contacts the switch cabinet housing via the threaded receptacle when it is screwed into the threaded receptacle, and
  • screw connection further comprises a screw passage opening through the flange plate.
  • Flange plates are often used to, for example, on a
  • the flange plates are in turn fixed by a sealing element in the edge region of the cabinet side opening, so that a potential equalization between the flange plate and the cabinet housing must be provided to achieve the required IP protection class.
  • This is realized in the known housing arrangements by means of a guided between the flange plate and the cabinet housing grounding cable, which must therefore be mounted separately during installation of the flange plate on the cabinet housing in an additional step.
  • the flange plate and the cabinet housing are often provided with an electrically non-conductive paint or coating, so that for the electrical contact between the flange plate and the
  • Control cabinet housing in the area of the attachment points of the grounding cable, the coating or paint must be broken or removed.
  • the screw has a connected to the screw head and the threaded portion having screw shank, wherein the screw shaft has a diameter-expanding portion having at least a diameter which is larger than a smallest inner diameter of the screw passage, so that the screw with a positive connection of the
  • the threaded portion of the screw may have a constant diameter in the axial direction of the screw and the screw shank between the screw head and the threaded portion may have a non-threaded portion having an outer circumference widening with respect to the threaded portion.
  • the threaded portion may extend over the entire length of the screw shaft in the axial direction or only over a part of the length of the screw shaft in
  • the threaded portion extends only over part of the length of the screw shank, the threaded portion is preferably located at the free end of the screw shank.
  • the threaded portion extends over the entire length of the screw shaft, the diameter-expanding portion at a free end of the screw shaft and the
  • the diameter-expanding portion may be disposed in a portion of the threaded portion connecting a free end of the constant-diameter threaded portion with the screw head.
  • the positive connection may be facilitated by the fact that the ringen takelassö réelle has a material thickness and the screw has a strength that are coordinated such that upon contact between the flared portion of the screw and the smallest inner diameter of the ringen presslassö réelle in the course of further screwing the screw, the inner circumference
  • Screw passage opening is integrally formed on the outer circumference of the screw shaft.
  • the edge region with the directionalen takelassö Samuel can for example consist of a steel sheet with 0.8 -1.5 mm thickness, while the screw a
  • the flared portion may have a symmetrical to a screw axis of the screw portion, preferably a conical and / or a
  • the opposite the threaded portion flared portion has an unglamate outer periphery, preferably with a knurling or with a toothing.
  • the threaded portion may extend substantially the entire length of the threaded portion
  • the screw can be designed in various ways, in which case it must essentially have, in particular, the section which widens in the previously described manner.
  • the screw shank always has the threaded portion and the widening portion, wherein the threaded portion and the widening portion may be formed along the same screw shank portion or along at least portions of the same screw shank portion.
  • the threaded portion may extend over the entire length of the screw shaft or only part of the length.
  • the widening portion can extend over the entire length of the screw shaft or part of the length.
  • the contact between the screw and the screw passage opening is further promoted in that the screw passage opening has a non-circular geometry, and preferably at least one projection which extends from an outer inner circumference of the screw passage opening in the direction
  • Screw passage opening protrudes.
  • the at least one projection may be a contact tip or a contact edge which, when the screw is screwed into the threaded receptacle, is displaced from the section widening in relation to the threaded section and thus comes into contact with the screw shaft.
  • the at least one projection may narrow the screw through-hole to a smallest inner diameter, but larger than a smallest diameter of the portion widening with respect to the threaded portion and smaller than a largest diameter of the portion widening with respect to the threaded portion.
  • the flange plate may in particular consist essentially of an electrically conductive, moldable material, in particular of a metal, wherein the
  • Projection tapered towards its free end, or at its free end has a material weakening, so that the free end of the projection when screwing the screw into the threaded receptacle form-fitting to the
  • the flange plate and in particular at least one Sclirauben formatlassöffhung may have a coating, in particular an electrically non-conductive coating or a powder coating, and the screw on its outer periphery of the opposite to the threaded portion widening section knurling or toothing, so that when screwing the screw into the threaded receptacle the Coating broken and an electrical contact between the screw and the flange plate is made.
  • the section widening in relation to the threaded section can be made in two parts, with a frustoconical first section adjoining the threaded section and a substantially constant section connecting the frustoconical section (with the screw head)
  • Diameter which has a knurling on its outer periphery.
  • the constant Diameter of the connecting portion may correspond to a largest diameter of the frusto-conical portion, so that they merge into one another via an edge or rounding.
  • an elastic sealing element may be arranged, wherein in a screwed completely into the threaded receiving state of the screw with the screw
  • frusto-conical portion is arranged with the screw head connecting portion of substantially constant diameter in the screw passage opening through the flange plate and with its frusto-conical portion in a passage opening of the sealing element, wherein the sealing element surrounds the frusto-conical portion form-fitting sealing.
  • control cabinet has an opening, in particular a bottom-side opening which is closed with a flange plate, wherein the flange plate is fixed to the control cabinet with a mounting arrangement of the type described above.
  • Figure 1 shows an embodiment of a control cabinet with flange plate
  • FIG. 2 shows an embodiment of a flange plate
  • Figure 3 is a detail view of Figure 2;
  • FIG. 4 shows an embodiment of a screw
  • FIG. 5 shows a further embodiment of a screw passage opening through a flange plate
  • FIG. 6 shows the screw passage opening according to FIG. 5 with the screw inserted
  • FIG. 7 shows an exemplary fastening arrangement in which a flange plate is screwed to a control cabinet housing via a sealing element
  • Figure 8 shows another embodiment of a screw.
  • FIG. 1 shows a control cabinet housing 2 in which a flange plate 1 can be screwed by way of a sealing element 17 on the bottom side. While in Figure 1 the
  • Flange plate 1 is shown as mounted “from below”, so it is also possible, the flange plate 1 "from above", d. H. to mount from the inside of the cabinet housing 2.
  • the flange plate 1 has ten along its outer edge
  • the bottom-side wall of the control cabinet housing 2 has a closable via the flange 1 opening 3, which has the passage openings 11 and 17 corresponding threaded sockets 4 with internal threads 9 in the edge region 5, so that the flange 1 can be fixed to the cabinet housing 2 via ten screws 6 so that it closes the opening 3.
  • the flange plate 1 may for example be provided to allow a cable bushing through the bottom side of the cabinet housing 2 in the interior of the cabinet housing 2 inside. Not all of the screw-threaded openings 11 in the flange plate 1 must be formed in the form of the invention described in detail below. Rather, it may be sufficient that only one of synchronen shedlassö Maschinenmaschinetechnisch 1 1 is prepared for equipotential bonding, while the remaining
  • eren presslassö réelleen 11 may be simple circular symmetrical through holes to set the flange 1 via screws on the cabinet housing 2, without a potential equalization is made on these connection points.
  • the flange plate 1 has on its circumference eight SSen takelassö réelleen 11, of which, however, only the bottom right in the illustration arranged SSen micöffhung 11 is formed in the form shown in detail in Figure 3 for the provision of equipotential bonding.
  • the seven remaining SSen micö réelleen 11 are simple
  • the detail view according to FIG. 3 shows that the one shown there
  • the flange plate 1 may be formed, for example, from a metal sheet of thickness 0.8 mm to 1.5 mm.
  • the projections 15 taper towards their free end. If now a screw 6 (see Figure 4) in the shown in Figure 3
  • Inner diameter d2 greater than or equal to the outer diameter d4 of
  • Threaded portion 8 expanded portion 12 of the screw 6 on the free ends of the projections 15 (see Figure 3), so that the projections 15 come to the flared portion 12 for conditioning.
  • the electrical contact between the flared portion 12 and the projections 15 is further favored in that the flared portion 12 has a portion 12.2 which connects the conical portion 12.1 with the screw head 7, said connecting portion 12.2 a
  • FIG. 5 shows the initial geometry of a screw passage opening 11 with projections 15 formed as contact tips.
  • Figure 7 is a composite arrangement of a cabinet housing 2 a
  • Flange plate 1 and an intermediate sealing member 17 is shown.
  • the screw 6 In the illustrated fully screwed-in position of the screw 6, the screw 6 superimposed with its head bottom on the top of the flange plate 1, while the
  • Screw head 7 with the frustoconical portion 12.1 connecting portion 12.2 contacted with the knurling 16 on its outer circumference, the flange plate 1.
  • the frusto-conical portion 12. 1 is arranged in the sealing element 17.
  • Passage opening 18 in the sealing element 17 may be formed smaller than the diameter of the frustoconical portion 12.1, so that the sealing element 17 is elastically deformed by screwing the screw 6 and sealingly abuts the outer periphery 18 of the frustoconical portion 12.1.
  • Threaded portion 8 of the screw 6 is about its external thread 10 with the
  • the threaded portion 8 extends over the entire length of the screw shaft S.
  • the screw shaft S is directly connected to the screw head 7.
  • the threaded portion 8 has at its the free end of the screw shaft S forming portion on the widening portion 12.
  • the flared portion 12 is connected to the screw head via a portion 8.1 of the constant diameter threaded portion 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Casings For Electric Apparatus (AREA)

Abstract

L'invention concerne un dispositif de fixation d'une plaque formant bride (3) à un boîtier d'armoire de distribution (2). Le dispositif de fixation comporte au moins une liaison par vis avec laquelle la plaque formant bride (1) est fixée à une ouverture (3) du boîtier d'armoire de distribution (2). La liaison à vis (5) comporte un logement fileté (4) situé dans la région de bord de l'ouverture (3) et destiné à recevoir une vis (6). Une vis (6) comporte, à son extrémité opposée à la tête de vis (7), une partie filetée (8) comportant un filetage extérieur (10) qui correspond à un filetage intérieur (9) du logement fileté (4) de sorte que la vis (6) vient en contact électrique avec le boîtier d'armoire de distribution (2) par l'intermédiaire du logement fileté (4) lorsqu'elle est vissée dans le logement fileté (4). La vis comporte en outre une ouverture de passage de vis (11) ménagée à travers la plaque formant bride (1). La vis (6) comporte une tige de vis (S) qui est pourvue de la partie filetée (8), qui est reliée à la tête de vis (7) et qui comporte une partie (12), évasée en diamètre, dont au moins un diamètre (d1) est supérieur au plus petit diamètre intérieur (d2) de l'ouverture de passage de vis (11) de sorte que la vis (6) forme, dans la partie évasée (12), une liaison par complémentarité de formes avec l'ouverture de passage de vis (11) lorsque la vis (6) est vissée dans le logement fileté (4).
PCT/DE2017/100247 2016-04-21 2017-03-28 Dispositif de fixation pour fixer une plaque formant bride à un boîtier d'armoire de distribution et boîtier d'armoire de distribution correspondant WO2017182028A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE202016102116.2U DE202016102116U1 (de) 2016-04-21 2016-04-21 Befestigungsanordnung für die Befestigung einer Flanschplatte an einem Schaltschrankgehäuse und ein entsprechendes Schaltschrankgehäuse
DE202016102116.2 2016-04-21

Publications (1)

Publication Number Publication Date
WO2017182028A1 true WO2017182028A1 (fr) 2017-10-26

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/DE2017/100247 WO2017182028A1 (fr) 2016-04-21 2017-03-28 Dispositif de fixation pour fixer une plaque formant bride à un boîtier d'armoire de distribution et boîtier d'armoire de distribution correspondant

Country Status (2)

Country Link
DE (1) DE202016102116U1 (fr)
WO (1) WO2017182028A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3097694A1 (fr) * 2019-06-24 2020-12-25 Schneider Electric Industries Sas Armoire électrique avec panneau rapporté

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102020005300A1 (de) 2020-08-28 2022-03-03 Eska Automotive Gmbh Schraube zur elektrischen Verbindung zweier Metallkörper
DE102020133619B8 (de) 2020-12-15 2023-07-06 Interroll Holding Ag Rollenförderer

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292195A (en) * 1940-07-03 1942-08-04 Continental Screw Company Fastener
US4557537A (en) * 1984-05-21 1985-12-10 General Electric Company Electrical grounding arrangement and method
DE4207308C2 (de) 1992-03-07 1995-11-16 Loh Kg Rittal Werk Verfahren zum Herstellen eines Blechgehäuses
DE102006024736A1 (de) * 2006-05-26 2007-12-06 Siemens Ag Kontaktvorrichtung
DE102014104006A1 (de) * 2014-03-24 2015-09-24 Phoenix Contact Gmbh & Co. Kg Gehäuse

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2292195A (en) * 1940-07-03 1942-08-04 Continental Screw Company Fastener
US4557537A (en) * 1984-05-21 1985-12-10 General Electric Company Electrical grounding arrangement and method
DE4207308C2 (de) 1992-03-07 1995-11-16 Loh Kg Rittal Werk Verfahren zum Herstellen eines Blechgehäuses
DE102006024736A1 (de) * 2006-05-26 2007-12-06 Siemens Ag Kontaktvorrichtung
DE102014104006A1 (de) * 2014-03-24 2015-09-24 Phoenix Contact Gmbh & Co. Kg Gehäuse

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR3097694A1 (fr) * 2019-06-24 2020-12-25 Schneider Electric Industries Sas Armoire électrique avec panneau rapporté
EP3758173A1 (fr) * 2019-06-24 2020-12-30 Schneider Electric Industries SAS Armoire électrique avec panneau rapporté

Also Published As

Publication number Publication date
DE202016102116U1 (de) 2016-07-27

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