GB2534145A - Snap fit cover for a switch cabinet - Google Patents

Snap fit cover for a switch cabinet Download PDF

Info

Publication number
GB2534145A
GB2534145A GB1500523.4A GB201500523A GB2534145A GB 2534145 A GB2534145 A GB 2534145A GB 201500523 A GB201500523 A GB 201500523A GB 2534145 A GB2534145 A GB 2534145A
Authority
GB
United Kingdom
Prior art keywords
snap fit
fit cover
holding areas
insulation wall
planar part
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.)
Withdrawn
Application number
GB1500523.4A
Other versions
GB201500523D0 (en
Inventor
Bernardus Wilhelmus Scholten Franciscus
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.)
Danfoss Power Solutions II BV
Original Assignee
Eaton Industries Netherlands BV
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 Eaton Industries Netherlands BV filed Critical Eaton Industries Netherlands BV
Priority to GB1500523.4A priority Critical patent/GB2534145A/en
Publication of GB201500523D0 publication Critical patent/GB201500523D0/en
Priority to EP16700361.5A priority patent/EP3245693A1/en
Priority to PCT/EP2016/050488 priority patent/WO2016113267A1/en
Publication of GB2534145A publication Critical patent/GB2534145A/en
Withdrawn legal-status Critical Current

Links

Classifications

    • 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
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/06—Boards, panels, desks; Parts thereof or accessories therefor having associated enclosures, e.g. for preventing access to live parts
    • 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
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B1/04—Mounting thereon of switches or of other devices in general, the switch or device having, or being without, casing
    • H02B1/044—Mounting through openings
    • H02B1/048—Snap mounting
    • 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
    • H02B1/14—Shutters or guards for preventing access to contacts
    • 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
    • H02B1/306—Accessories, e.g. windows
    • 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
    • H02B1/015—Boards, panels, desks; Parts thereof or accessories therefor
    • H02B2001/0155—Removable shutters for non-used openings

Abstract

A snap fit cover 1 for a recess or aperture in an insulation wall 3a of a switch cabinet comprises a substantially planar part 4 and snap cantilevers 5 protruding from the planar part in a direction crossing the plane of the planar part. Said cantilevers comprise first holding areas 6 for holding the snap fit cover in a mounted position and which are inclined to the plane of the planar part and second holding areas 7, which are recessed in relation to said first holding areas forming a step towards a centre section of the snap fit cover. A system comprising such a snap fit cover and at least a first switch cabinet with a recess in a first insulation wall and a second switch cabinet with a recess in a second, thicker insulation wall is further disclosed.

Description

Snap fit cover for a switch cabinet
TECHNICAL FIELD
The present invention relates to a snap fit cover for a recess in an insulation wall of a switch cabinet. The snap fit cover comprises a substantially planar part and snap cantilevers protruding from the planar part in a direction crossing the plane of the planar part. The cantilevers comprise first holding areas, which are designed for holding the snap fit cover in the recess in a mounted position and which are inclined in relation to the plane of the planar part. Moreover, the invention relates to a system, comprising a switch cabinet with a recess in an insulation wall and a snap fit cover of the kind above, wherein the insulation wall contacts the snap fit cover at the first holding areas.
BACKGROUND ART
A snap fit cover and a system of the kind above is generally known. An insulation wall of a switch cabinets usually comprises a number of openings or recesses so that access to the electrical installation behind is possible and/or devices, which reach through the recesses, can be mounted. For example, circuit breakers may attached to the electrical installation, whose actuating element reaches through the insulation for operating said circuit breakers. A part of the opening, which is not seized by circuit breakers or other electrical devices is usually covered by a snap fit cover for safety reasons. A drawback of known solutions is that a snap fit cover just fits on insulation walls with a particular thickness.
DISCLOSURE OF INVENTION
Accordingly, it is an object of the invention to provide an improved snap fit cover and to provide an improved system with a snap fit cover and a switch cabinet. In particular, the snap fit cover should be usable for insulation walls with different thicknesses.
The problem of the invention is solved by a snap fit cover as defined in the opening paragraph, additionally comprising second holding areas on said snap cantilevers, which are recessed in relation to said first holding areas forming a step towards a center section of the snap fit cover.
Moreover, the problem of the invention is solved by a system, comprising - at least a first switch cabinet with a recess in a first insulation wall and a second switch cabinet with a recess in a second thicker insulation wall, and - a snap fit cover as defined above, wherein the first insulation wall contacts the snap fit cover at the first holding areas and the second insulation wall contacts the snap fit cover at the second holding areas.
By means of the recessed second holding areas, the snap fit cover can be mounted to a greater variety of switch cabinets than in prior art, concretely to a greater variety of insulation walls having different thickness. Comparably thin insulation walls contact the snap fit cover at the first holding areas, and comparably thick insulation walls contact the snap fit cover at the second holding areas. Due to the recession of the second holding areas the holding force is kept at a level, which allows for easy mounting and demounting of the snap fit cover. Moreover, the snap cantilevers are less bent than in prior art solution why the snap fit cover allows for a higher number of mountings and demountings.
Further favorably embodiments of the invention are disclosed in the dependent claims and the following description as well as in the figures.
Advantageously, the first holding areas / second holding areas of different snap cantilevers are arranged mirror-inverted and roof-shaped. In this way, the snap fit cover is centered in the recess automatically.
In a further preferred embodiment of the snap fit cover the inclination of the first holding areas with respect to the plane of the planar part is equal to the inclination of the second holding areas with respect to the plane of the planar part. In this way, the snap fit cover is easy to produce.
It is also advantageous, if the inclination of the first holding areas with respect to the plane of the planar part is different to the inclination of the second holding areas with respect to the plane of the planar part. It is of particular advantage, if the angle of the first holding areas is smaller than the angle of the second holding areas in detached state. In particular, said angles may be equal in mounted state of the snap fit cover. In this way, the holding forces in insulation walls of different thickness are similar, and the snap fit cover can be detached from the first insulation wall as easy as from the second insulation wall.
In a further preferred embodiment, the angle of the second holding areas is made a bit bigger than the angle of the first holding areas in mounted position. In this way the stronger deformation of the snap cantilevers in case the snap fit cover is mounted to a comparably thick insulation wall can be compensated. Accordingly, holding forces in thin insulation walls and thick insulation walls can be made substantially equal.
Generally, the holding forces in the first insulation wall and the second insulation wall can be controlled by said angles and by the height of the step between first holding areas and second holding areas.
BRIEF DESCRIPTION OF DRAWINGS
The invention now is described in more detail hereinafter with reference to particular embodiments, which the invention however is not limited to.
Fig. 1 shows an oblique view of an exemplary snap fit cover, which is to be mounted in a recess of an insulation wall of a switch cabinet; Fig. 2 shows a detailed side view of the snap fit cover of Fig. 1; Fig. 3 shows a detailed side view of the snap fit cover of Fig. 1 mounted into a comparably thin insulation wall of a switch cabinet and Fig. 4 shows a detailed side view of the snap fit cover of Fig. 1 mounted into a comparably thick insulation wall of a switch cabinet.
DETAILED DESCRIPTION
Fig. 1 shows an oblique view of an exemplary snap fit cover 1, which is to be mounted in a recess 2 of an insulation wall 3 of a switch cabinet. The snap fit cover 1 comprises a substantially planar part 4 and snap cantilevers 5 protruding from the planar part 4 in a direction crossing the plane of the planar part 4.
Fig. 2 shows a detailed side view of the snap fit cover 1 of Fig. 1 and discloses that said cantilevers 5 have first holding areas 6 and second holding areas 7, which are designed for holding the snap fit cover 1 in the recess 2 in a mounted position and which are inclined in relation to the plane of the planar part 4. The second holding areas 7 are recessed in relation to said first holding areas 6 thus forming a step towards a center section of the snap fit cover 1.
Moreover, Fig. 3 shows a detailed side view of the snap fit cover 1 of Figs. 1 and 2 mounted in a recess of a first insulation wall 3a, and Fig. 4 shows a detailed side view of the snap fit cover 1 of Figs. 1 and 2 mounted in a recess of a second thicker insulation wall 3b. Figs. 3 and 4 disclose that the first insulation wall 3a contacts the snap fit cover 1 at the first holding areas 6 and the second insulation wall 3b contacts the snap fit cover 1 at the second holding areas 7.
By these measures the holding force is kept at a level, which allows for easy mounting and demounting of the snap fit cover 1 both to/from the first insulation wall 3a and the second insulation wall 3b. Moreover, the snap cantilevers 5 are not excessively bent when the snap fit cover 5 is mounted to the second insulation wall 3b, why the snap fit cover 1 bears a higher number of mountings and demountings even on thick insulation walls.
Beneficially, the first holding areas 6 / second holding areas 7 of different snap cantilevers 5 are arranged mirror-inverted and roof-shaped as shown in the example of Figs. 1 to 4. In this way, the snap fit cover 1 is centered in the recess 2 of the insulation wall 3 automatically.
Moreover, it is advantageous if the inclination al of the first holding areas 6 with respect to the plane of the planar part 4 and inclination a2 of the second holding areas 7 with respect to the plane of the planar part 4 are different as shown in the example of Figs. 1 to 4. Concretely, angle a2 is smaller than angle al in detached state. However, when the snap fit cover 1 is mounted, angles a2 and ai may be substantially equal (see Figs. 3 and 4). In this way, the holding forces in the first insulation wall 3a and the second insulation wall 3b are similar, and the snap fit cover 1 can be detached from the first insulation wall 3a as easy as from the second insulation wall 3b.
In a further preferred embodiment, the angle a2 is made a bit bigger than al in mounted position. In this way the stronger deformation of the snap cantilevers 5 can be compensated so that holding forces in the first insulation wall 3a and the second insulation wall 3b can be made substantially equal.
Anyway, in a further preferred embodiment the inclination al of the first holding areas 6 with respect to the plane of the planar part 4 and inclination a2 of the second holding areas 7 with respect to the plane of the planar part 4 can be substantially equal in detached state of the snap fit cover 1. In this way, the snap fit cover 1 is easy to produce.
One should also note, that the holding forces in the first insulation wall 3a and the second insulation wall 3b are not just controlled by the angles al and a2, but also by the height of the step between first holding areas 6 and second holding areas 7.
Figs. 3 and 4 also disclose an exemplary system, comprising the snap fit cover 1 and at least a first switch cabinet with a recess 2 in a first insulation wall 3a and a second switch cabinet with a recess 2 in a second thicker insulation wall 3b, wherein the first insulation wall 3a contacts the snap fit cover 1 at the first holding areas 6 and the second insulation wall 3b contacts the snap fit cover 1 at the second holding areas 7.
It should be noted at this point that the snap fit cover 1 and the system disclosed above are not limited to a particular embodiment shown in a particular Figure. Proportions in reality may be different from that shown in the Figs. Moreover, a snap fit cover 1 may also comprise more or less parts than shown.
It should also be noted that the term "comprising" does not exclude other elements and the use of articles "a" or "an" does not exclude a plurality. Also elements described in association with different embodiments may be combined. It should also be noted that reference signs in the claims should not be construed as limiting the scope of the claims.

Claims (8)

  1. Claims 1. Snap fit cover (1) for a recess (2) in an insulation wall (3, 3a, 3b) of a switch cabinet, the snap fit cover (1) comprising - a substantially planar part (4) and - snap cantilevers (5) protruding from the planar part (4) in a direction crossing the plane of the planar part (4), wherein said cantilevers (5) have first holding areas (6), which are designed for holding the snap fit cover (1) in the recess (2) in a mounted position and which are inclined in relation to the plane of the planar part (4), characterized in second holding areas (7) on said snap cantilevers (5), which are recessed in relation to said first holding areas (6) forming a step towards a center section of the snap fit cover (1).
  2. 2. Snap fit cover (1) as claimed in claim 1, characterized in, that the first holding areas (6) / second holding areas (7) of different snap cantilevers (5) are arranged mirror-inverted and roof-shaped.
  3. 3. Snap fit cover (1) as claimed in claim 1 or 2, characterized in, that the inclination (al) of the first holding areas (6) with respect to the plane of the planar part (4) is equal to the inclination (a2) of the second holding areas (7) with respect to the plane of the planar part (4).
  4. 4. Snap fit cover (1) as claimed in claim 1 or 2, characterized in, that the inclination (al) of the first holding areas (6) with respect to the plane of the planar part (4) is different to the inclination (a2) of the second holding areas (7) with respect to the plane of the planar part (4).
  5. 5. Snap fit cover (1) as claimed in claim 4, characterized in, that the inclination (a1) of the first holding areas (6) with respect to the plane of the planar part (4) is steeper than the inclination (a2) of the second holding areas (7) with respect to the plane of the planar part (4) in detached state of the snap fit cover (1).
  6. 6. System, comprising at least a first switch cabinet with a recess (2) in a first insulation wall (3a) and a second switch cabinet with a recess (2) in a second thicker insulation wall (3b), characterized in, a snap fit cover (1) as claimed in any one of the claims 1 to 5, wherein the first insulation wall (3a) contacts the snap fit cover (1) at the first holding areas (6) and the second insulation wall (3b) contacts the snap fit cover (1) at the second holding areas (7).
  7. 7. System as claimed in claim 6, characterized in that the inclination (ai) of the first holding areas (6) with respect to the plane of the planar part (4) in case the snap fit cover (1) is mounted in a recess (2) in a first insulation wall (3a) and the inclination (a2) of the second holding areas (7) with respect to the plane of the planar part (4) in cases the snap fit cover (1) is mounted in a recess (2) in a second insulation wall (3b) are substantially equal.
  8. 8. System as claimed in claim 6, characterized in that the inclination (al) of the first holding areas (6) with respect to the plane of the planar part (4) in case the snap fit cover (1) is mounted in a recess (2) in a first insulation wall (3a) is lower than the inclination (a2) of the second holding areas (7) with respect to the plane of the planar part (4) in cases the snap fit cover (1) is mounted in a recess (2) in a second insulation wall (3b).
GB1500523.4A 2015-01-13 2015-01-13 Snap fit cover for a switch cabinet Withdrawn GB2534145A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
GB1500523.4A GB2534145A (en) 2015-01-13 2015-01-13 Snap fit cover for a switch cabinet
EP16700361.5A EP3245693A1 (en) 2015-01-13 2016-01-12 Snap fit cover for a switch cabinet
PCT/EP2016/050488 WO2016113267A1 (en) 2015-01-13 2016-01-12 Snap fit cover for a switch cabinet

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1500523.4A GB2534145A (en) 2015-01-13 2015-01-13 Snap fit cover for a switch cabinet

Publications (2)

Publication Number Publication Date
GB201500523D0 GB201500523D0 (en) 2015-02-25
GB2534145A true GB2534145A (en) 2016-07-20

Family

ID=52597540

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1500523.4A Withdrawn GB2534145A (en) 2015-01-13 2015-01-13 Snap fit cover for a switch cabinet

Country Status (3)

Country Link
EP (1) EP3245693A1 (en)
GB (1) GB2534145A (en)
WO (1) WO2016113267A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017110596A1 (en) * 2017-05-16 2018-11-22 Hager Electro Gmbh & Co. Kg FASTENING DEVICE, DOOR FOR A CONTROL CABINET AND A CONTROL CABIN COMPRISING ONE SUCH DOOR

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154498A (en) * 1977-10-31 1979-05-15 Alden Research Foundation Removable electrical connector
EP0129087A1 (en) * 1983-06-10 1984-12-27 W. Schmid AG Signal lamp housing
GB2199446A (en) * 1986-12-09 1988-07-06 Pdl Holdings Ltd Mounting of a module on a plate
US6099611A (en) * 1997-02-28 2000-08-08 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Locking elements for a filter ventilator
DE102004051928A1 (en) * 2004-10-25 2006-04-27 Ifm Electronic Gmbh Fixing element for fixing a housing in a recess of an assembly plate in electronic devices comprises a holding section, a locking section and a spring element

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1991595U (en) * 1968-08-14 Siemens Aktien gesellschaft, 1000 Berlin und 8000 München Closure made of plastic with approaches for inserting m cutouts on cover plates of distributions
US3706869A (en) * 1972-03-24 1972-12-19 Carling Electric Inc Multiple wing switch case

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4154498A (en) * 1977-10-31 1979-05-15 Alden Research Foundation Removable electrical connector
EP0129087A1 (en) * 1983-06-10 1984-12-27 W. Schmid AG Signal lamp housing
GB2199446A (en) * 1986-12-09 1988-07-06 Pdl Holdings Ltd Mounting of a module on a plate
US6099611A (en) * 1997-02-28 2000-08-08 Rittal-Werk Rudolf Loh Gmbh & Co. Kg Locking elements for a filter ventilator
DE102004051928A1 (en) * 2004-10-25 2006-04-27 Ifm Electronic Gmbh Fixing element for fixing a housing in a recess of an assembly plate in electronic devices comprises a holding section, a locking section and a spring element

Also Published As

Publication number Publication date
WO2016113267A1 (en) 2016-07-21
EP3245693A1 (en) 2017-11-22
GB201500523D0 (en) 2015-02-25

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Legal Events

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WAP Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1)