EP0511043B1 - Appareil interrupteur électromécanique à bloc additif retournable - Google Patents

Appareil interrupteur électromécanique à bloc additif retournable Download PDF

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Publication number
EP0511043B1
EP0511043B1 EP92400921A EP92400921A EP0511043B1 EP 0511043 B1 EP0511043 B1 EP 0511043B1 EP 92400921 A EP92400921 A EP 92400921A EP 92400921 A EP92400921 A EP 92400921A EP 0511043 B1 EP0511043 B1 EP 0511043B1
Authority
EP
European Patent Office
Prior art keywords
add
module
housing
main casing
contacts
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP92400921A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0511043A1 (fr
Inventor
Christian Pichard
Guy Eschermann
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.)
Schneider Electric SE
Original Assignee
Schneider Electric SE
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 Schneider Electric SE filed Critical Schneider Electric SE
Publication of EP0511043A1 publication Critical patent/EP0511043A1/fr
Application granted granted Critical
Publication of EP0511043B1 publication Critical patent/EP0511043B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H01H11/0006—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches
    • H01H11/0012—Apparatus or processes specially adapted for the manufacture of electric switches for converting electric switches for converting normally open to normally closed switches and vice versa
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H01H9/02—Bases, casings, or covers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H11/00—Apparatus or processes specially adapted for the manufacture of electric switches
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/545—Self-contained, easily replaceable microswitches

Definitions

  • the present invention relates to an electromechanical switch device according to the preamble of claim 1 comprising a main device to which is added an additive block of auxiliary contacts.
  • the invention more particularly aims to facilitate the use of such an additive block.
  • this device is characterized in that the housing of the additive unit presents to the user one or the other of two large opposite faces exclusively visible in each of the two positions of the additive housing, in that in each large face open through openings for the bilateral introduction of conductors in terminals whose access openings have axes which are parallel to those of the power terminals, and in that the two large opposite faces include marking areas serving to indicate the function of the add-on block in the position it occupies on the main housing.
  • the add-on block is housed and locked in a front opening of the switchgear housing.
  • one or two returnable additive blocks can be housed in this opening.
  • the add-on block is engaged in a front opening of the main box and rests on the nose of the latter, and that the same pivoting lever of the switch device actuates the main contacts and the auxiliary contacts.
  • a reversible flap can be added to the additive housing to take two operating positions in which it is applied to one or the other of the two large opposite faces of the additive housing and releases a respective functional marking provided on the add-on unit and / or the flap.
  • the illustrated switching device is a motor circuit breaker having a housing 10 which comprises a cover 11 towards the front and a body or base 12 which can be fixed on a support towards the rear.
  • the housing 10 is provided frontally - that is to say on the side opposite the fixing side - with areas 13, 14 for access to power terminals 15. Access is made for a screwdriver via orifices 16 provided in these areas to allow the attachment or release of power conductors. These conductors are introduced into holes 17 provided in upper and lower areas 18, perpendicular to areas 13, 14.
  • the housing 10 is provided with a nose 20 which carries, on a flat front surface 21 and parallel to the surfaces 13, 14, adjustment or display elements such as 22 and at least one manual control button such as 23. It also has surfaces 24, 25 parallel to the areas 18 and usually arranged horizontally as shown in the figure 1.
  • the housing 10 houses, in particular in the nose 20, a control mechanism 26 cooperating with the button 23 and triggering members for controlling the movement of contact bridges 27.
  • These bridges are displaceable according to a X axis perpendicular to the front surface 21 and have movable contacts 29 which cooperate with fixed contacts 28 to each open and close a polar current path between two terminals 15.
  • the contacts are opened from the mechanism 26 by action according to arrow F1 on the end of a lever 30 applicable on a support of the contact bridges. It can also be carried out from an electromagnet integrated in the housing or forming part of a block attached to the housing 10; the opening action can then be exerted on an intermediate point of a large arm 30a of the lever 30 according to arrow F2.
  • the closure of the contacts can be generated in a known manner by the button 23 or the electromagnet.
  • the lever 30 pivots on pivots 31 and is biased in the direction of closing the contacts 28, 29 by a light spring 32. It is bent so as to present a small arm 30b which directly controls the additive block.
  • the arms 30a, 30b form an approximately right angle between them.
  • an opening 33 is formed frontally in the surface 24 of the housing between the nose 20 and the front area 13 of access to the terminals 15.
  • the housing 40 has a width at most equal to that of the main housing 10; the width of the housing 40 is here equal to that of the housing 10, reduced by the thickness of the side partitions 34 thereof.
  • the opening 33 is masked by a removable strip. The depth of the housing 40 and its insertion into the housing 10 are such that the front face of the housing 40 does not protrude from the front surface 21 of the housing 10.
  • the housing 40 of the additive block consists of a body 40a and a cover 40b (see Figure 6) or two half-shells and it includes a fixed contact member 42 and a movable contact 43 to establish or cut a connection electric with single cutoff between two screw terminals 44, 45.
  • the screw access openings 46 have axes D1 which are parallel to the axes D2 of the screws of the power terminals 15 and which are interposed between these axes to facilitate wiring ( see figure 13).
  • Through openings 47 for introducing the conductors open onto a large horizontal face 48 and onto a large opposite horizontal face 49 of the housing 40.
  • an opening 50 On the front side of the housing 40, there is provided between the openings 46 for access to the terminals 44, 45 an opening 50.
  • This opening is centered on the median plane Y of the housing and houses the maneuverable end of a lock 60 described further.
  • the add-on block 40 can be turned around an axis perpendicular to the plane of the front surface 21 of the circuit breaker. This reversal allows the additive block to take two functionally distinct positions. To take one of these positions, the face 49 of the housing 40 slides, when it is introduced into the opening 33, on the surface 24 of the nose 20 of the housing 10. To take the other position, the face 48 of the housing 40 slides upon introduction onto the surface 24.
  • the movable contact 43 is carried by one end of an elastic blade 52.
  • the latter is biased, on the side opposite to the contacts, by a contact pressure spring 53.
  • the elastic blade is recessed to its other end in a connection piece 54 connected to terminal 44.
  • the fixed contact 42 is carried by another connection piece 55 connected to terminal 45.
  • the contact-carrying blade 52 is maneuvered by a lever 56 articulated at one end 56a on trunnions of axis D3 and accessible at its other end 56b, which is free, by a rear opening 57 of the housing 40.
  • the blade 52 and the lever 56 cooperate at an intermediate point 56c of the latter.
  • a sliding operating member can be provided in place of the lever.
  • the lock is constituted in a first variant ( Figures 2 to 5) by a lever 60 independent of the lever 56 and cooperating with the latter in particular in the insertion range. It is constituted in a second variant (FIG. 15) by at least one hard point snap-in element using an elastic effect and provided in the housings 10 and / or 40.
  • the locking lever 60 (FIGS. 2 to 5) comprises an operating head 61 housed in the opening 50 and a projection 62 penetrating into a recess 58 in the housing 40 and capable of being hooked in one or the other of two recesses 63, 64 provided in the housing 10, on both sides of the front opening 33.
  • the lever 60 pivots about an axis D4 of the housing 40.
  • the axis D4 is parallel to the axis D3 and to the axis longitudinal of the blade 52, these axes being perpendicular to the plane Y.
  • the lever 60 has a heel 66 opposite to the projection 62 and applicable against the lever 56 in order to force the latter into the open position of the auxiliary contacts in phase d 'introduction.
  • the lever 60 is returned to its position in FIG. 4 by a spring or by elastic tabs 67.
  • the reversible additive block can occupy a first position - corresponding to the closing additive function ( Figures 9 and 10) - and a second position - corresponding to the opening additive function ( Figures 2 to 4 and 11, 12) -.
  • Appropriate functional markings 70F and 700 are provided respectively on the opposite faces 48, 49 of the housing 40 of the additive block; in this way, we visualize the function effectively performed by the block in place while obscuring the marking of the uninsured function.
  • the opening function is illustrated in Figure 13 and the closing function in Figure 14.
  • the lever 30 of the circuit breaker controls by a first arm 30a a member carrying the power contacts and by a second arm 30b the end tab 56b of the lever 56 of the additive block.
  • the tab 56b is offset from the central plane Y of the housing 40.
  • the arm 30b of the lever 30 ends with a finger 71F active for the operation in additive with closure and with a finger 710 active for operation in additive with opening.
  • Each finger opens the auxiliary contacts when the main contacts are open (additive to closure) and closed (additive to opening).
  • the fingers 71F, 710 act in opposite directions on the tab 56b and are aligned along axes D5, D6 symmetrical with respect to the plane Y; tab 56b is aligned with D5 (additive to closure) or D6 (additive to opening).
  • Other fingers 71M, 71N, indicated in dashes in FIG. 7, can be provided on the lever 30 to actuate other control levers such as 56 when the additive block has other contacts (for example in the case of '' a four-terminal additive).
  • the operator chooses its apparent side up according to the desired mode and slides the housing 40 onto the horizontal surface 24 of the housing 10 to engage it in the opening 33 ( Figure 3).
  • the projection 62 of the lever 60 is forced to disappear; the lever 60 pivots clockwise and the heel 66 pushes the lever 56 which pivots in the same direction.
  • the tab 56b is positioned on the correct side of the finger 710 or 71F.
  • the projection 62 is housed in the opening 63 or 64 to ensure the retention of the additive block.
  • the additive block is added to the main device without modifying the depth and width of the latter, or disturbing its mounting or that of any lateral additives.
  • the markings 70F appear on the surface 49 of the housing 40.
  • the lever 30 is tilted counterclockwise and the finger 71F lets the lever 56 come to the left under the effect of the spring 53, so that the auxiliary contacts 42, 43 are closed.
  • the lever 30 is tilted clockwise and the finger 71F is applied to the tab 56b. The lever 56 pushes the blade 52 by compressing the spring 53 and therefore separates the contacts 42, 43.
  • control lever 56 moves itself into the open position of auxiliary contacts during the introduction phase.
  • it includes a projection 56d which plays the same role as the projection 62 previously described.
  • the housing 40 is locked relative to the housing 10 by means of notches or snap-fastening elements 73 using the elasticity of the walls of the housings or of specific elements thereof.
  • FIGS. 16 to 18 there is added to the housing 40 of the additive block a reversible flap 80 mounted captive and tilting on the housing thanks to bearings 81.
  • the flap can be applied to the large horizontal face 48 of the housing 40 ( Figures 16 and 17) and respectively on the large face 49 of the housing ( Figure 18). It has a viewing window 82 which releases respective functional markings 83, 84 permanently provided on the faces 48, 49 and representative of the opening and closing operation of the additive.
  • Terminal markings such as 700, 70F can be provided on the front face of the housing 40 or on the reversible flap.
  • Striated surfaces or the like 85 are provided to facilitate gripping of the flap; one of the intermediate positions of the flap, during a turning maneuver, is indicated in dashes in FIG. 17.
  • the flap 80 protects the screw terminals 44 of the additive block against direct contact with the operator's finger by means of adequate surfaces such as 86; the flap also makes it possible to provide this protection while reducing the thickness 1 of the housing 40. Finally, it will be noted that in all cases, the tab 56b and the fingers 710, 71F move in the direction of the thickness 1 of the housing 40.
  • the reversible flap could, in a snap-on variant, have functional markings on its two opposite faces. It can also be used to facilitate the extraction of the housing 40.
  • the invention has been described in relation to a motor circuit breaker. It also applies to switching devices such as contactors, contactor-circuit breakers or line circuit breakers. Other modifications can be made to the embodiment described without departing from the scope of the invention as claimed.
  • the pivoting transmission lever and the pivoting operating lever can be replaced by members movable in translation.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Breakers (AREA)
EP92400921A 1991-04-22 1992-04-02 Appareil interrupteur électromécanique à bloc additif retournable Expired - Lifetime EP0511043B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR9105423A FR2675625A1 (fr) 1991-04-22 1991-04-22 Appareil interrupteur electromecanique a bloc additif retournable.
FR9105423 1991-04-22

Publications (2)

Publication Number Publication Date
EP0511043A1 EP0511043A1 (fr) 1992-10-28
EP0511043B1 true EP0511043B1 (fr) 1996-01-31

Family

ID=9412472

Family Applications (1)

Application Number Title Priority Date Filing Date
EP92400921A Expired - Lifetime EP0511043B1 (fr) 1991-04-22 1992-04-02 Appareil interrupteur électromécanique à bloc additif retournable

Country Status (5)

Country Link
EP (1) EP0511043B1 (enrdf_load_stackoverflow)
JP (1) JPH07169356A (enrdf_load_stackoverflow)
KR (1) KR0123927B1 (enrdf_load_stackoverflow)
DE (1) DE69207942T2 (enrdf_load_stackoverflow)
FR (1) FR2675625A1 (enrdf_load_stackoverflow)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638653C1 (de) * 1996-09-20 1998-04-02 Siemens Ag Hilfsschalter-Zusatzblock mit Wechslerfunktion

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5532441A (en) * 1994-10-13 1996-07-02 Square D Company Contact block having convertible normally open or normally closed electrical contact
US6239395B1 (en) * 1999-10-14 2001-05-29 General Electric Company Auxiliary position switch assembly for a circuit breaker
JP4126866B2 (ja) * 2000-11-06 2008-07-30 富士電機機器制御株式会社 回路しゃ断器
DE10137497C5 (de) 2001-07-31 2005-09-15 Siemens Ag Schaltgerät
JP2003257299A (ja) * 2002-03-06 2003-09-12 Fuji Electric Co Ltd 回路遮断器
DE112005003779A5 (de) * 2005-09-30 2008-08-28 Siemens Aktiengesellschaft Elektromagnetisches Schaltgerät

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2545986A (en) * 1949-12-03 1951-03-20 Westinghouse Electric Corp Auxiliary contact device for electric contactors
US3161751A (en) * 1962-05-17 1964-12-15 Gen Electric Reversible electrical contact structure
US3388353A (en) * 1965-10-07 1968-06-11 Smith Corp A O Electrical contactor having main circuit control contacts and auxiliary control contacts interconnected to be actuated from a common electromagnetic actuator

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19638653C1 (de) * 1996-09-20 1998-04-02 Siemens Ag Hilfsschalter-Zusatzblock mit Wechslerfunktion

Also Published As

Publication number Publication date
EP0511043A1 (fr) 1992-10-28
DE69207942D1 (de) 1996-03-14
FR2675625A1 (fr) 1992-10-23
KR0123927B1 (ko) 1997-12-09
FR2675625B1 (enrdf_load_stackoverflow) 1994-08-19
KR920020553A (ko) 1992-11-21
DE69207942T2 (de) 1996-06-05
JPH07169356A (ja) 1995-07-04

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