EP0862784A1 - Disjoncteur de surintensite - Google Patents

Disjoncteur de surintensite

Info

Publication number
EP0862784A1
EP0862784A1 EP97944829A EP97944829A EP0862784A1 EP 0862784 A1 EP0862784 A1 EP 0862784A1 EP 97944829 A EP97944829 A EP 97944829A EP 97944829 A EP97944829 A EP 97944829A EP 0862784 A1 EP0862784 A1 EP 0862784A1
Authority
EP
European Patent Office
Prior art keywords
contact
contact bridge
housing
switch
switch according
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
EP97944829A
Other languages
German (de)
English (en)
Other versions
EP0862784B1 (fr
Inventor
Fritz Krasser
Franz Winkler
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen 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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Priority to DE29724493U priority Critical patent/DE29724493U1/de
Publication of EP0862784A1 publication Critical patent/EP0862784A1/fr
Application granted granted Critical
Publication of EP0862784B1 publication Critical patent/EP0862784B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/22Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release
    • H01H73/30Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide
    • H01H73/306Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism having electrothermal release and no other automatic release reset by push-button, pull-knob or slide the push-button supporting pivotally a combined contact-latch lever
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H73/00Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
    • H01H73/02Details
    • H01H73/04Contacts
    • H01H73/045Bridging contacts
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01HELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H71/00Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
    • H01H71/02Housings; Casings; Bases; Mountings
    • H01H71/0207Mounting or assembling the different parts of the circuit breaker
    • H01H71/0214Housing or casing lateral walls containing guiding grooves or special mounting facilities

Definitions

  • the invention is based on the object of developing a switch of the type mentioned at the outset in such a way that it can be produced at low cost and allows a space-economical design which is narrow, even across its wall surfaces. In particular, it should also be able to cope with high switching currents above 50 A without it being necessary for large currents suitable larger cable cross-sections the solution of the task mentioned is impaired.
  • This problem is solved by claim 1.
  • This solution makes it possible to position the fixed contacts in a very space-economical manner and yet with a large air space between them in the corners of the housing. Their knife-edge-like effectiveness against the contact bridge ensures good contacting
  • claim 3 enables a particularly space-saving positioning of the two fixed contacts with their base parts, which is staggered in the direction of the longitudinal axis of the switch. This enables the narrow construction of the switch or the switch housing to be maintained
  • Claim 4 serves to facilitate the switch assembly while ensuring the positional accuracy of the two fixed contacts
  • the housing is only in two parts. For storage and / or guidance, it contains not only the fixed contacts, but also the moving parts of the switch kinematics, only two housing shells facing one another, made of insulating material, Namely, the chassis part and the locking part Both parts each contain one of the two essentially parallel side walls.
  • the switch housing has approximately the outline shape of a cuboid and its side walls, which are aligned approximately parallel to one another, are the contact surfaces to the adjacent switch when several switches are lined up in a row
  • the chassis part In addition to one of the two said wall surfaces, the chassis part also forms an end face, while the closure part, in addition to the other end face, also contains the two flank or narrow side walls of the housing.
  • the functional point - if necessary previously assembled into assemblies - is simply placed on the inside of the chassis part and between the molded-on wall protrusion inserted there during the one-piece injection molding of the chassis part.
  • the chassis part which is equipped with the functional parts in a secured manner, is inserted into the locking part in a drawer-like manner in the longitudinal direction of the switch until it snaps together
  • the figures contain an embodiment of the overcurrent protection switch according to the invention. Then show
  • Fig. 1 is an external perspective view of the fully assembled switch
  • Fig. 2 is an internal perspective view of one housing part, which as
  • FIG. 3 shows an external view of the other housing part designated as “chassis part” with the handle of the shift rod protruding from it in the fully assembled state of the functional parts, the chassis part being in the ready-to-assemble starting position relative to the locking part according to FIG. 2,
  • Fig. 4 is an exploded view of all the individual parts of the switch in spatial mutual assignment,
  • Fig 5 is an exploded view of the individual parts in a pre-assembled state
  • FIG. 7 shows an exploded view of the individual parts of the fixed contact bimetal assembly according to FIG. 6,
  • Fig. 8 shows a cross section through the switch with approximately in the plane of movement
  • FIG. 9 a sectional view analogous to FIG. 8 in the switch-on position
  • FIG. 10 an exploded view analogous to FIG. 5 with a supplementary part, by means of which the overcurrent switch can also be switched off by hand without further effort
  • FIG. 11 a view analogous to FIG
  • the switch contains a flat, box-shaped insulating material housing 1, which essentially has the outline shape of a cuboid.
  • the two-part housing consists of the chassis part 2 and the closure part 3, with rare walls 4 and 5 running approximately parallel to one another for the purpose of space-saving arrangement with one another
  • the chassis part 2 contains the first end wall 6 with bushings for the contact connections 7, 8 and a through hole 9 for the adjustment of the bimetal 38, which is described below.
  • the locking part 3 contains housing walls that act on the outside except for the side wall 5 nor the actuation side, second end wall 10 and the two
  • the gearbox is located within the housing 1 with a movement plane running approximately centrally in the middle between the rare walls 4, 5.
  • the gearbox serves to guide the movement of the contact bridge 13, which in the switched-on position bridges the space between the fixed contacts 14, 15 and by means of their contact ends 71, 72 the fixed contacts 14, 15 electrically conductively connects one another
  • the fixed contacts 14, 15 in the current path between the contact connection 7 (current input) to the contact connection 8 (current output) are flat parts, for example sheet metal stamped parts. With their flat extension, they run parallel to the rare walls 4, 5 in the manner of a knife blade and form the contact bridge 13 facing narrow edges in the manner of cutting each have a contact point 16 or 17.
  • the fixed contacts 14, 15 have their back narrow edges 18, 19 opposite the contact points 16, 17 on the flank wall 12 of the housing 1. In the direction of their longitudinal axis 73 they are from the first housing end wall 6 forth into the flank space next to the plane of movement of the contact bridge support 20 of the manual transmission.
  • the fixed contacts 14, 15 are angled at right angles in their base areas with respect to their flat extent such that their base parts 21, 22 as connection areas to the contact connections 7, 8 are essentially at right angles to the rare walls 4 5 and e run approximately parallel to the end walls 6, 10 of the housing 1. They are positioned or plugged in between the protrusions 23-26 protruding from the side wall 4 of the housing part 2 towards the interior of the housing.
  • the base parts 21 form an upper U facing the contact points 16, 17 - Leg of a U-shaped base part 75.76 of the fixed contacts 14.15
  • the base part 75 of the fixed contact 14 comprises the retaining projection 26 formed by a segment of the end wall 6 of the chassis part 2.
  • the base part 76 of the other fixed contact 15 has a U-shape with the base part 22 as the upper U-leg and with the lower U-leg 77 forming the passage for the adjusting screw 63 (FIG. 6, 7).
  • the fixed contacts 14, 15 are formed with their base parts 21, 22 and the fixed contact 14 is additionally formed in one piece with its contact connection 7
  • the fixed contacts 14, 15 are of different lengths at approximately the same high position of their contact points 16, 17 (FIG. 4). As a result, their base parts 21, 22 are spaced differently apart from the first end wall 6 in the construction position. This enables the desired narrow construction by nesting the two fixed contacts into one another 14, 15 in their installation position. This is because the two base parts 75, 76 in the installation position of the fixed contacts 14, 15 are staggered one behind the other or one below the other in the longitudinal direction of the switch axis (FIGS. 8, 9 and 11)
  • the contact bridge support 20 is essentially a flat part running with its central plane approximately parallel to the rare walls 4, 5 and centrally with a distance between the rare walls 4, 5. It is made in one piece from insulating material.
  • the contact bridge carrier 20 bears the contact bridge 13 on its side facing the fixed contacts 14, 15.
  • the contact bridge carrier 20 has an angular contour and thus has on the side of the fixed contacts 14, 15 one of the contact connections 7, 8 or the front wall of the housing 6 protruding vertical leg 27, which is penetrated in the region of its free end 28 by the approximately perpendicular to the wall surfaces 4,5 aligned contact bridge 13
  • the contact bridge 13 is a metallic, largely flat sheet metal part, which can also be equipped with contact plates, and forms with its two ends projecting in the direction of its longitudinal axis 74 beyond the contact bridge support 20 have a mating contact with the fixed contacts 16, 17. It is narrowed in a slot 29 of the contact bridge support 20 which penetrates the vertical leg 27 approximately perpendicularly.
  • the insert is designed such that the contact bridge 13 around the through the Slot 29 axis formed from ih
  • the approximately perpendicular position to the median longitudinal plane of the contact bridge support 20 can be slightly deflected on both sides. This ensures good contacting
  • the contact bridge carrier 20, which is injection molded in one piece from insulating material 13, is in the switched-on position with a flat part 30 oriented approximately parallel to the fixed contacts 14, 15 in the manner of a parallel screen in the space between the two fixed contacts 14, 15.
  • the fixed contacts 14, 15 are separated from one another shielded and the arc gap between them is significantly enlarged
  • a switching rod 31 made of insulating material can also be slowly displaced in the plane of movement of the switching mechanism kinematics running between the fixed contacts 14, 15 and parallel to the rare walls 4, 5.
  • the longitudinal displacement is brought about by manual actuation of the actuating end 32 of the switching rod 31 protruding from the housing the Betat Trents ⁇ chtung 34 is opposite to the pressure direction of a release spring 33 which is offset in the plane of movement to the side facing away from the fixed contacts 14, 15 and from the vertical leg 27 of the contact bridge carrier 20 and at the lower, contact-connection-side end of the switching rod 31 on the one hand and on the housing 1 on the other
  • a release spring 33 which is offset in the plane of movement to the side facing away from the fixed contacts 14, 15 and from the vertical leg 27 of the contact bridge carrier 20 and at the lower, contact-connection-side end of the switching rod 31 on the one hand and on the housing 1 on the other
  • the shift rod 31 is penetrated by an elongated groove 35 running approximately in the central longitudinal plane of the gearbox kinematics. It serves as a sliding guide for the horizontal leg 36 of the contact bridge support 20, which extends through the elongated groove 35 from the fixed contact side or from the side of the left flank wall 12 (FIGS. 8, 9) and 11) of the housing 1 protrudes into the other housing side region facing the right flank wall 11 and at its end the kinking nose 37 for kinking the contact bridge support 20 with the overcurrent release described in detail below, namely the bimetal 38, bears on the side of the fixed contacts 14, 15, the contact bridge carrier 20 is acted upon by a tension spring 39 in the upward direction towards the end wall 10 of the switch housing 1 which is pushed through by the push button.
  • the tension spring 39 is attached by means of a spring eye 41 its end wall-side, upper end threaded onto a spur 40 protruding from the wall surface 4 of the chassis part 2.
  • the spur 40 extends with its free end to the side wall 5 of the closure part 3, so that the tension spring 39 is captively fixed to the chassis part 2 in the assembled position
  • the switching rod 31 and the contact bridge support 20 are aligned and movably guided by support guides on the rare walls 4, 5 of the housing 1. It is therefore the housing parts 2, 3 or the rare walls 4, 5 assigned to them, which on the one hand have the orientation but on the other hand also the mobility of shift rod 31 and contact bridge support 20 in the plane of movement within the housing 1
  • the lower end 42 of the tension spring 39 is articulated on the side of the contact bridge carrier 20 opposite the pivoting nose 37 in the region of its angle apex 49.
  • the tension spring 39 runs with its longitudinal axis on the fixed contact side and parallel to the central longitudinal plane of the switch kinematics in an area close to the side wall 4 of the chassis part 2, that is to say in each case eccentrically
  • This eccentric position of the tension spring 39 is on the one hand causally related to the fact that the contact bridge carrier 20 only on the side wall 4 of the chassis part 2 is guided in a rotary thrust joint guide running essentially in the shift rod longitudinal direction.
  • the rotary thrust joint guide is guided by a guide groove 44 on the side wall 4 of the chassis part 2 directed essentially parallel to the shift rod 31 and then by a sliding guide produced approximately perpendicular to the plane of movement of the Wegget ⁇ ebekinematik pivot 45 on the apex 49 of the contact bridge support 20
  • the guide groove 44 has in its longitudinal direction a circular segment-shaped course with the shift rod 31 facing curvature This course of the guide groove favors the engagement of the Switch rod 31 on the contact bridge carrier 20 in a manner described in more detail below.
  • the tension spring generates the contact pressure on the contact points 16, 17 by pivoting the contact bridge carrier around its pivot pin 45
  • the pivot pin 45 not only has a guiding function in the manner of a sliding block, in order to ensure a certain movement curve of the contact bridge carrier 20 relative to the housing 1; rather, its end face 46 is further used for contacting the side wall 4 of the chassis part 2.
  • This system together with the contact of the end face 47 of the bracket 48 formed on the other flank side of the contact bridge carrier 20 on the side wall 5 of the closure part 3 of the housing causes the alignment and parallel guidance of the contact bridge carrier 20 between the two rare walls 4, 5 of the housing 1.
  • the rib-like bracket 48 extends from the log area 49 between the Both legs 27, 36 of the contact bridge carrier 20 into the area of the slot 29 for holding the contact bridge 13, which is pinned to the plug hole 78 of the contact bridge carrier 20 by means of the pin 49 passing through the through hole 50 of the contact bridge 13.
  • the cross-sectional shape de s Bracket 48 is that of a T or a double T-beam
  • the shift rod 31 is in the area of the passage of its actuating end 32 through the second end wall 10 of the housing 1 and in the housing interior by two diametrically approximately perpendicular to the plane of motion of the gearbox kinematics protruding sliding shoes 51, 52 on the rare walls 4.5 in a groove in the switching direction 34 Grooves are formed on the inner sides of the side walls 4, 5 of the chassis part 2 and the closure part 3.
  • the groove 52 assigned to the closure part 3 is clearly visible in FIG. 2.
  • the sliding shoes 51, 52 are arranged in the height of the longitudinal groove 35 of the shift rod 31
  • the overcurrent trigger contains a bimetal 38 which is approximately parallel to the switching rod 31 and has a latching opening 55 located at its swiveling end for engaging the locking nose 37 of the contact bridge support 20.
  • the bimetal 38 is U-shaped
  • U-leg 57 bent and stands with the connecting web 56 between the two U-legs 57, 58 upward (FIG. 7).
  • One U-leg 57 is fixedly connected, in particular welded, to the base part 22 or the base part 76 of the fixed contact 14 assigned to the current output.
  • the other U-leg 58 is welded at its end to the contact connection 8 assigned to the current output.
  • FIG. 8 the switch is in the switched-off position.
  • the contact bridge carrier 20 is raised on the one hand by the release spring 33 and counterclockwise around the pivot pin 45 and on the other hand by the Tension spring 39 pulled into its off position.
  • the trigger spring 33 acts on the shift rod 31. Indirectly, however, the switching rod 31 takes the contact bridge carrier 20 upward via the eccentric anvil 60, which forms the lower length limit of the longitudinal groove 35.
  • the contact bridge carrier 20 rests on the anvil 60 with its horizontal leg 36.
  • the action of the contact bridge carrier 20 by the release spring 33 in the region of the horizontal leg 36 also causes the contact bridge carrier 20 to pivot counterclockwise around the pivot pin 45 (FIGS. 5, 10).
  • the switching rod 31 is acted upon in the pressure direction 34.
  • the grip rib 53 at the lower end of the switching rod 31 grasps the contact bridge carrier 20 by inserting it into the driver notch 54 and displaces the contact bridge carrier 20 downward.
  • the transmission of the thrust movement from the shift rod 31 to the contact bridge carrier 20 takes place by acting on the horizontal leg 36 of the contact bridge carrier 20 through the upper end of the longitudinal groove 35 in the shift rod 31.
  • the tension spring 39 is tensioned and the release spring 33 is compressed.
  • the bimetal 38 In the switch-on position shown in FIG End of the bimetal 38 above the latching opening 55, the bimetal 38 is provided with an outwardly bent extension 62, on which the lowering lug 37 strikes before it falls into the latching opening 55, causing further actuation of the shift rod 31 and thereby kter displacement of the contact bridge carrier 20 downward, the bimetal 38 is bent further in a clockwise direction until the lowering lug 37 overlaps with the latching opening 55 and the bimetal 38 springs back counterclockwise as a result of the restoring force inherent in it and is locked with the lowering lug 37
  • the actuating end 32 of the switching rod 31 projects significantly less far beyond the housing bushing 61 and signals "switched-on position" to the outside.
  • the adjusting screw 63 is accessible from the outside through the through hole 9 of the end wall 6 of the housing 1.
  • the adjusting screw 63 acts on the base part 22 of the fixed contact 15 in the current outlet area and thus generates the adjusting movement of the bimetal 38.
  • the assembly VI assigned to the fixed contact 15 of the current outlet is inserted into the chassis part 2 according to FIG. 6.
  • the assembly V (FIG. 4) consisting of contact bridge carrier 20 with a threaded switching rod 31 is also mounted on the chassis part 2 while simultaneously anchoring the functional springs 33, 39.
  • the current input is then fixed assigned fixed contact 14 on the chassis part 2 In this way, the captivity of the assemblies previously assembled on the chassis part 2 is ensured for the duration of the assembly process
  • the chassis part 2 is then brought relative to the closure part 3 into the relative position shown in FIGS. 2 and 3.
  • the chassis part 2 is then inserted into the closure part 3 in a drawer-like manner against the pressure direction 34 of the shift rod 31.
  • the side walls 11, 12 of the closure part 3 engage behind the side wall 4 in the manner of a dovetail by means of its projecting ribs 66, 67 in the inserted position, the chassis part 2 snaps with the closure part 3 by its latching projections 68 engaging in the latching eyes 69 of the closure part 3
  • an outwardly projecting threaded sleeve 70 is formed, which is used, for example, to fasten the switch in a control cabinet
  • Shift rod 70 thread pulses
  • Print direction 73 contact longitudinal axis

Landscapes

  • Breakers (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Keying Circuit Devices (AREA)
  • Control Of Eletrric Generators (AREA)
  • Electronic Switches (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Push-Button Switches (AREA)
EP97944829A 1996-09-07 1997-09-04 Disjoncteur de surintensite Expired - Lifetime EP0862784B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE29724493U DE29724493U1 (de) 1996-09-07 1997-09-04 Überstromschutzschalter

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
DE29615644U 1996-09-07
DE29615644 1996-09-07
DE29615761U 1996-09-10
DE29615761 1996-09-10
DE19647716 1996-11-19
DE19647716 1996-11-19
PCT/EP1997/004809 WO1998010456A1 (fr) 1996-09-07 1997-09-04 Disjoncteur de surintensite

Publications (2)

Publication Number Publication Date
EP0862784A1 true EP0862784A1 (fr) 1998-09-09
EP0862784B1 EP0862784B1 (fr) 2001-11-14

Family

ID=27216844

Family Applications (1)

Application Number Title Priority Date Filing Date
EP97944829A Expired - Lifetime EP0862784B1 (fr) 1996-09-07 1997-09-04 Disjoncteur de surintensite

Country Status (7)

Country Link
US (1) US6040747A (fr)
EP (1) EP0862784B1 (fr)
AT (1) ATE208956T1 (fr)
CA (1) CA2236927C (fr)
DE (2) DE59705384D1 (fr)
ID (1) ID19307A (fr)
WO (1) WO1998010456A1 (fr)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10013103C1 (de) * 2000-03-17 2001-11-29 Aeg Niederspannungstech Gmbh Gehäuse
US6710688B2 (en) * 2001-04-30 2004-03-23 Eaton Corporation Circuit breaker
CN101763995B (zh) * 2009-12-29 2012-08-22 宁波奇乐电气集团有限公司 具有自锁功能的断路器触头
US9216527B2 (en) * 2012-02-09 2015-12-22 G & W Electric Company Solid-dielectric switch including a molded viewing window
US10541519B1 (en) * 2018-10-10 2020-01-21 Hamilton Sundstrand Corporation Large current circuit breaker plug-in installation

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1588146B2 (de) * 1967-02-22 1972-02-10 Druckknopfbetaetigter ueberstromschalter
CH579823A5 (en) * 1975-03-04 1976-09-15 Baumann Hans Ag Manually operated protective switch - is for thermal and or magnetic automatic release and has swivel toggle levers
US4463403A (en) * 1982-09-27 1984-07-31 Porta Systems Corp. Plug type gas tube replacement module
DE8904063U1 (fr) * 1989-04-03 1989-06-22 Ellenberger & Poensgen Gmbh, 8503 Altdorf, De

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See references of WO9810456A1 *

Also Published As

Publication number Publication date
DE59705384D1 (de) 2001-12-20
WO1998010456A1 (fr) 1998-03-12
CA2236927C (fr) 2005-01-04
ATE208956T1 (de) 2001-11-15
US6040747A (en) 2000-03-21
JP3364749B2 (ja) 2003-01-08
DE29724493U1 (de) 2001-08-30
ID19307A (id) 1998-07-02
CA2236927A1 (fr) 1998-03-12
JPH11502367A (ja) 1999-02-23
EP0862784B1 (fr) 2001-11-14

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