EP1840925A2 - Elément de connexion pour connecter des appareils d'installation disposés parallèlement - Google Patents

Elément de connexion pour connecter des appareils d'installation disposés parallèlement Download PDF

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Publication number
EP1840925A2
EP1840925A2 EP07002389A EP07002389A EP1840925A2 EP 1840925 A2 EP1840925 A2 EP 1840925A2 EP 07002389 A EP07002389 A EP 07002389A EP 07002389 A EP07002389 A EP 07002389A EP 1840925 A2 EP1840925 A2 EP 1840925A2
Authority
EP
European Patent Office
Prior art keywords
connecting element
base body
switching devices
bore
latching means
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Withdrawn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
EP07002389A
Other languages
German (de)
English (en)
Other versions
EP1840925A3 (fr
Inventor
Rudolf Sellner
Matthias Bitz
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.)
ABB Patent GmbH
Original Assignee
ABB Patent 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 ABB Patent GmbH filed Critical ABB Patent GmbH
Publication of EP1840925A2 publication Critical patent/EP1840925A2/fr
Publication of EP1840925A3 publication Critical patent/EP1840925A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02—Housings; Casings; Bases; Mountings
    • H01H71/0264—Mountings or coverplates for complete assembled circuit breakers, e.g. snap mounting in panel
    • H01H71/0271—Mounting several complete assembled circuit breakers together

Definitions

  • the present invention relates to a dacaselement.zur connection of at least two mutually parallel installation switching devices, in particular circuit breaker, residual current circuit breaker, main power switch and the like.
  • the housing is formed from housing parts, with a sleeve-shaped, resilient, cylindrically shaped body, with a about a central axis formed around circular cross-section is formed, wherein the executed with locking means basic body can be secured in a bore formed in the respective housing part and positively locked in the bore of the housing part.
  • the invention further relates to the connection of at least two service switching devices with such connecting elements, and still further the connection of at least two service switching devices with a support element.
  • Generic fasteners are known for the connection of service switching devices, which relate in particular unipolar electrical circuit breaker with a housing, wherein the housing is formed of two mostly an interior forming housings. In this case, the front edges of the shell walls are placed against each other, wherein the fixation of the two shells to each other, for example by means of riveted joints.
  • Such unipolar installation switching devices can be assembled into multipolar installation switching devices, wherein the mutual connection of the individual devices find the generic fasteners of interest here.
  • the EP 1 109 277 A2 describes as an alternative to the riveted joint, the connection of two service switching devices by a connecting element, which has an approximately cylindrical base body with a first outer diameter, on whose end faces in each case two radially auffedernde, axially projecting, first and second spreading arms are formed.
  • the outer contours of the spreading arms lie on a cylindrical outer surface whose outer diameter is smaller than the first outer diameter of the base body.
  • the free ends of the spreader arms have radially projecting lugs, on opposite generatrices. In the assembled state, the lugs engage behind recesses on the housing to be connected to the connecting elements of the adjacent installation switching devices.
  • the connecting element has an approximately cylindrical base body with a first outer diameter, on whose end faces in each case two radially auffedernde, axially projecting, first and second spreading arms are formed, whose outer contours lie on a cylindrical outer surface.
  • the outer diameters are smaller than the first outer diameter of the main body, wherein the free ends have radially projecting lugs on mutually opposite generatrices.
  • the housing is connected by means of snap, fastening and clamping means with an additional device and / or the housing shells are held together by such means, wherein the connection of the devices by rivet-like locking elements, which with flat depressions penetrate the holes provided and lock them with spreading heads in the counterbores.
  • the connecting elements In the case of the known connecting elements, the problem arises that they are injection-molded and comprise a plastic material which, due to its comparatively low strength, does not allow any great stress on the connecting elements. These plastic compounds can easily break, which also carries the risk that the latching means suffer deformations at a greater load, which make the fasteners unusable. In addition, a repeated loosening and re-engagement of the locking means leads to wear, which also lead to the uselessness of the connecting elements.
  • the invention includes the technical teaching that the locking means, which are connected in one piece and of the same material on the formed of a metallic material body, are independently resilient, so that the connecting element has a spring action, which is composed by the resilient body and the locking means ,
  • the invention is based on the idea that the special design of the composite spring action allows the use of a metallic material which has a high strength in order to allow a correspondingly high load capacity of the connecting element. Due to the extended elastic range of the metallic material of the main body itself is resilient, so that it has a correspondingly high flexibility when joining the connecting element in the bore of the housing of the service switching device and the latching means itself can also spring against the base, whereby the Monnachgiebmaschine due to the addition the individual compliances can be increased. Thus, the use of a material with a greater thickness is possible, whereby the strength is further increased.
  • the base body has a core hole formed along the central axis, so that a bolt-shaped element can be passed through the core hole.
  • the creation of a continuous core hole is made possible by the fact that the base body is formed from a spring sheet bent in a sleeve shape, wherein the locking means are technically notched out of the spring sheet in the radial direction to the outside.
  • a connecting element is provided, which has both a high rigidity and a high load capacity of the connection of the service switching devices allowed, while still a core hole can be provided, through which a bolt-shaped element such as a screw for screwing a further attachment to an adjacent installation switching device is possible.
  • the main body can be produced by means of separation and forming process, wherein at least the contour of the spring plate, comprising the spring slots and the locking means are made in the shear cut and the collar and the Locking means by upsetting and bending process off or can be formed.
  • a spring steel sheet can be used, which is first punched out with respect to the unwound contour of the sleeve-shaped connecting element. After punching the inner closed contours as the locking means, the outer contour can be punched. Subsequently, a bending process can be used to produce the curved contour of the locking means. This step can be done before or after the bending process for bending the flat sheet metal material into the sleeve shape.
  • the base body has a center plane arranged perpendicular to the central axis, wherein the base body extends symmetrically on both sides of the median plane.
  • the connecting element is formed symmetrically overall, wherein the cylindrical base body extends substantially radially symmetrically about the central axis and on both sides of the median plane is symmetrical.
  • the central axis is perpendicular to the center plane, wherein the median plane in the joined state of the connecting element in both installation switching devices is also in the division plane of the two devices.
  • a further alternative of the invention provides that the base body has on both sides of the median plane to this collar formed adjacent.
  • the collars extend radially symmetrically circumferentially in the form of radially outwardly formed bulges.
  • the collars are made as upsets in the sleeve-shaped sheet material of the connecting element, wherein the upset takes place from the direction of the central axis, so that an outwardly directed annular contour of the collar is formed.
  • the collar offers when joining the connecting element in the housing of the service switching device a stop, so that the connecting element only can be inserted into the bore of the housing to a predetermined depth. In particular, when joining the second housing to the connecting element can be prevented that this does not penetrate further into the bore of the first connecting element.
  • the base body is limited in the direction of the central axis by one free end in the longitudinal direction and has spring slots which extend from the respective free end in the base body in the direction of the respective collar. Furthermore, the main body has a longitudinal slot; which extends parallel to the central axis over the full length of the body.
  • the bore has approximately the diameter of the base body, which is present in the powerless state of the connecting element. Due to the radially outwardly bent locking means must be compressed radially during joining of the body by the amount resulting from the difference of the diameter between the bore in the housing and the outer diameter of the locking means.
  • the longitudinal slot which extends parallel to the central axis over the full length of the main body, the radially symmetric cross section is interrupted in a region, so that there is a C-shaped cross-sectional shape of the base body.
  • the spring slots which extend from the respective free ends in the base body in the direction of the collar, additionally support the spring effect.
  • the spring slots are formed so deep into the base body, that radially inwardly einfederbare areas of the body arise, in which the locking means are arranged.
  • the latching means can each be arranged on the circumference of the base body about 90 ° offset to the longitudinal slot or the spring slot.
  • two latching means are formed on each side of the median plane, which are arranged offset on the circumference of the base body 180 ° to each other.
  • a total of 4 locking means may be provided, which are arranged symmetrically on both sides of the median plane and facing each other in pairs.
  • the base body has an annular cross-section which is interrupted by the longitudinal slot on an angle segment related to the central axis, wherein the angle of the angular segment is 35 ° to 55 °, preferably 40 ° to 50 ° and particularly preferably 45 °.
  • an improved connection of at least two installation switching devices arranged parallel to one another, whose housings are formed from housing parts can be achieved by connecting the housings to a connecting element according to the invention, wherein the connecting element is introduced into a bore formed in the respective housing part and positively locked in the bore of the housing part is secured, and wherein an at least partially bolt-shaped connecting element is guided through the core hole of the connecting element, so that thereby an additional connection between the service switching devices is effected.
  • An improved connection of at least two mutually parallel installation switching devices whose housing is formed from housing parts, with a support element, such as an adapter can, according to the invention be achieved in that the service switching devices are interconnected with at least one connecting element according to the invention, wherein the connecting element in a in each housing part formed bore introduced and positively secured in the bore of the housing part, and the installation switching devices by means of a guided through the core hole of the connecting element, at least partially bolt-shaped connecting element are connected to the carrier element.
  • the bolt-shaped connecting element is a long screw with which the service switching devices are additionally screwed together and with the support element
  • the connecting element 1 shown in Figure 1 is cylindrical, and extends longitudinally along a central axis 11. In the longitudinal direction, the connecting element 1 is bounded by a respective free end 16a and 16b, wherein the cylindrical outer diameter at the respective free ends 16a, 16b chamfered is to provide an improved joining possibility of the connecting element 1 in the associated bore in the housing of the service switching device.
  • the connecting element 1 is formed symmetrically about a median plane 14 on the left and right sides, wherein the center axis 11 and the center plane 14 are each represented by dash-dotted lines.
  • the cylindrical shape of the base element 10 forming the connecting element 1 is interrupted by two collars 15a and 15b, which are designed radially outwardly as an outwardly formed bulge.
  • the collars 15a and 15b are each adjacent to the center plane 14 and extend radially symmetrically about the existing cylinder cross-section.
  • the collar 15a and 15b serve as a stop when joining the connecting element 1 in the bore of the housing of the service switching device, to prevent this is too deep into the bore.
  • locking means 12a and 12b are provided, wherein a total of 4 locking means are arranged distributed, which lie in the image plane on the left side and on the right side each one above the other.
  • the locking means 12a and 12b are formed of the same material and integrally with the base body 10, wherein these are cut free by recesses 19a and 19b of the material of the base body 10.
  • the latching means 12a and 12b are bent radially outward from the cylindrical basic structure of the base body 10.
  • the bent-out, tab-like shape of the locking means 12a, 12b points in the direction of the median plane 14, so that when joining the connecting element 1, the locking means 12a, 12b are deformed radially inwardly to radially in an undercut of the respective bore in the housing in its bent-out snap back outward position.
  • Figure 2 shows a view of the connecting element 1, which is shown in a radial position, in which a longitudinal slot 13 can be seen in plan view.
  • the longitudinal slot 13 extends over the entire length of the main body 10 from the first free end 16a shown on the left side to the second free end 16b shown on the right.
  • the longitudinal slot 13 serves to increase the flexibility of the base body 10 in order to facilitate a joining of the connecting element 1 in a bore, since the resilience of the return spring action of the locking means 12a, 12b is supported in radially inward direction. This is due to a reduction in the rigidity of the base body 10, since the C-shape formed by the longitudinal slot 13 has a lower rigidity than a closed circular cross-section.
  • the manufacturing operation performed bending operation is facilitated to bend the flat-shaped starting material in sheet form into the sleeve shape without connecting the successive curved edges of the sheet material by a joining method to form a closed annular cross-section.
  • the connecting element 1 is shown in plan view, wherein the right side of the median plane 14, the connecting element 1 is shown cut.
  • the contour of the collar 15b is shown, which is formed in a meandering shape as an upset cylinder portion radially outward.
  • a spring slot 17a and 17b is formed on both the left side and the right side, which extends from the free end 16a or 16b to approximately the level of the collar 15a and 15b in the direction of the median plane 14.
  • the spring slots 17a and 17b serve to reduce the rigidity of the base body 10 in order to increase the resilience to the deflection of the connecting element 1 in the associated bore.
  • the spring slots 17a, 17b of the same spring effect can be achieved as this arises through the longitudinal slot 13.
  • the locking means 12a and 12b are formed directed from the side of the respective free end 16a and 16b out according to a line of curvature radially outwards, wherein at the end of the tongue-shaped locking means 12a, 12b is also provided an outwardly bent nose 20a, 20b, wherein this is assigned to each of the existing locking means 12a, 12b respectively.
  • This is integrally formed by the special design of the respective recess 19 on the base body 10, wherein all geometric configurations are made on the base body 10 by means of punching and bending operations.
  • FIG. 3 shows the basic body 10 forming the connecting element 1 with its C-shaped basic shape, wherein the longitudinal slot 13 forms the opening area of the circular cross section.
  • the base body 10 in this case has an annular cross-section, which is interrupted by the longitudinal slot 13 on a relative to the central axis 11 angular segment, wherein the angle of the angular segment is approximately, 45 °.
  • the locking means 12a is reproduced, which also has a part-circular cross-section.
  • the opening of the longitudinal slot 13 extends both over the base body 10 and over the collar 15, wherein opposite to the longitudinal slot 13, a spring slot 17a is formed.
  • the C-shaped basic structure of the main body 10 includes a core hole 18, which is formed uniformly throughout over the entire length of the base body 10 and allows the passage of at least one further bolt-shaped connecting means.
  • FIG. 4 schematically shows a view in partial section through three service switching devices 100, 106, 112 connected to connecting elements 1, 2 according to the invention, which are connected to a carrier element 120, in this case an adapter, by means of a longitudinal screw 130 guided through the core holes 18.
  • Each of the service switching devices 100, 106, 112 comprises two housing parts 102, 104 and 108, 110 and 114, 116, which are joined to first and second inner broad sides 103, 105 and 111, 113 and 119, 121, respectively. With the outer broad sides 109, 107 and 115, 117 they are parallel to each other.
  • the third switching device 112 is located with its second outer broadside 123 parallel to the support member 120, here an adapter to.
  • the first outer broad side 100 of the first service switching device 100 is freely accessible.
  • FIG. 4 shows a view of the upper narrow side of the service switching devices. You can see the terminal openings 160, 161, 162 and the shift knob 150 on the front.
  • each service switching device 100, 106, 112 In the vicinity of the front sides of the installation switching devices 100, 106, 112, these have a bore 140.
  • the bore 140 is attached to each service switching device so that results in parallel stringing the service switching devices a through hole with a continuous central axis 142.
  • the bore 140 is in each housing part 102; 104, 108, 110, 114, 116 at the outer and inner broad sides 101, 103, 105, 107 and 109, 111, 113, 115 and 117, 119, 121, 123, respectively, so that in each case from the direction of the outer broad side 101 , 107, 109, 115, 117, 123 a stop 136 and from the direction of the inner broad sides 103, 105, 111, 113, 119, 121 results in an undercut 134.
  • connection element 2 the second and third service switching devices 106, 112 are connected by a same connection element 2.
  • a landing screw 130 is guided. This is with its screw head on the stop 136, which is located near the first outer broadside 101 of the first service switching device 100 at. With its free end, the long screw 130 is guided through a corresponding hole in the support member 120, and screwed to the second broadside 123 of the third installation switching device 112 opposite broadside with a nut 132. In this way, therefore, the arrangement of the three switching devices 100, 106, 112 is not only connected to each other by the two connecting elements 1,2, but the so-formed switching device package is screwed by the long screws 130 in a simple manner with the support member 120.
  • the installation switching devices 100, 106, 112 may be provided at various locations holes as described above, where then the devices by other fasteners and possibly through the core holes guided long screws or other suitable bolt-shaped connecting elements with each other and / or with a corresponding support member 120th can be connected.
  • the advantage of the mounting as shown in Figure 4 is that the connecting element, here the long screw 130, can be attached very easily and after installation is largely hidden inside the switching devices and thus does not bother from the outside.
  • the present invention is not limited in its execution to the above-mentioned, preferred embodiments. Rather, a number of variants is conceivable, which makes use of the illustrated solution even with fundamentally different types of use.

Landscapes

  • Connection Of Plates (AREA)
  • Dowels (AREA)
  • Breakers (AREA)
EP07002389A 2006-03-29 2007-02-03 Elément de connexion pour connecter des appareils d'installation disposés parallèlement Withdrawn EP1840925A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE102006014445 2006-03-29
DE102006019577A DE102006019577A1 (de) 2006-03-29 2006-04-27 Verbindungselement zur Verbindung von parallel zueinander angeordneten Installationsgeräten

Publications (2)

Publication Number Publication Date
EP1840925A2 true EP1840925A2 (fr) 2007-10-03
EP1840925A3 EP1840925A3 (fr) 2007-12-12

Family

ID=38088349

Family Applications (1)

Application Number Title Priority Date Filing Date
EP07002389A Withdrawn EP1840925A3 (fr) 2006-03-29 2007-02-03 Elément de connexion pour connecter des appareils d'installation disposés parallèlement

Country Status (4)

Country Link
US (1) US20070238356A1 (fr)
EP (1) EP1840925A3 (fr)
CA (1) CA2581684A1 (fr)
DE (1) DE102006019577A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102009048671A1 (de) 2009-09-30 2011-03-31 Siemens Aktiengesellschaft Anordnung mit zumindest zwei separaten Schaltpolgehäusen und mit einer Verbindungseinrichtung zum Verbinden der Schaltpolgehäuse sowie mehrpoliges elektrisches Schaltgerät mit einer derartigen Anordnung
DE102013101736A1 (de) 2013-02-21 2014-08-21 Johnson Electric Dresden Gmbh Anordnung zur Befestigung und Positionierung von Relais
DE102013225029A1 (de) 2013-12-05 2015-06-11 Siemens Aktiengesellschaft Verbinder zum Verbinden eines ersten Formelements mit einem zweiten Formelement

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7900929U1 (de) * 1979-01-15 1980-06-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltgerät, dessen Gehäuse mit Hilfe von Schnappbefestigungs- oder Kiemmitteln mit einem Zusatzgerät verbunden ist
EP1109277A2 (fr) * 1999-12-18 2001-06-20 ABBPATENT GmbH Elément d'accouplement de deux appareils électriques montés côte-à-côte, et méthode d'accouplement d'appareillages électriques
DE202004013708U1 (de) * 2004-09-02 2004-12-23 Abb Patent Gmbh Verbindungselement zur Herstellung einer Verbindung zwischen Installationsschaltgeräten
DE102004042428A1 (de) * 2004-09-02 2006-03-09 Abb Patent Gmbh Verbindungselement, Verbindung und Verfahren zur Herstellung einer Verbindung zwischen Installationsgeräten

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TW200409418A (en) * 2002-05-30 2004-06-01 Heyco Products Inc Connectors for under-cabinet lighting

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE7900929U1 (de) * 1979-01-15 1980-06-19 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Schaltgerät, dessen Gehäuse mit Hilfe von Schnappbefestigungs- oder Kiemmitteln mit einem Zusatzgerät verbunden ist
EP1109277A2 (fr) * 1999-12-18 2001-06-20 ABBPATENT GmbH Elément d'accouplement de deux appareils électriques montés côte-à-côte, et méthode d'accouplement d'appareillages électriques
DE202004013708U1 (de) * 2004-09-02 2004-12-23 Abb Patent Gmbh Verbindungselement zur Herstellung einer Verbindung zwischen Installationsschaltgeräten
DE102004042428A1 (de) * 2004-09-02 2006-03-09 Abb Patent Gmbh Verbindungselement, Verbindung und Verfahren zur Herstellung einer Verbindung zwischen Installationsgeräten

Also Published As

Publication number Publication date
EP1840925A3 (fr) 2007-12-12
CA2581684A1 (fr) 2007-09-29
DE102006019577A1 (de) 2007-10-04
US20070238356A1 (en) 2007-10-11

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