EP1198807A1 - Unite de fusible a commutateur pourvue d'un verrouillage de maintien - Google Patents

Unite de fusible a commutateur pourvue d'un verrouillage de maintien

Info

Publication number
EP1198807A1
EP1198807A1 EP00951410A EP00951410A EP1198807A1 EP 1198807 A1 EP1198807 A1 EP 1198807A1 EP 00951410 A EP00951410 A EP 00951410A EP 00951410 A EP00951410 A EP 00951410A EP 1198807 A1 EP1198807 A1 EP 1198807A1
Authority
EP
European Patent Office
Prior art keywords
switch
fuse
plug
opening
fuse unit
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
EP00951410A
Other languages
German (de)
English (en)
Other versions
EP1198807B1 (fr
Inventor
Klaus Bruchmann
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.)
Individual
Original Assignee
Individual
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
Priority claimed from DE29912853U external-priority patent/DE29912853U1/de
Priority claimed from DE1999134542 external-priority patent/DE19934542C1/de
Application filed by Individual filed Critical Individual
Publication of EP1198807A1 publication Critical patent/EP1198807A1/fr
Application granted granted Critical
Publication of EP1198807B1 publication Critical patent/EP1198807B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/54—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers
    • H01H85/545—Protective devices wherein the fuse is carried, held, or retained by an intermediate or auxiliary part removable from the base, or used as sectionalisers with pivoting fuse carrier
    • 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
    • H01H9/10—Adaptation for built-in fuses
    • H01H9/104—Adaptation for built-in fuses with interlocking mechanism between switch and fuse
    • 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
    • H01H9/20—Interlocking, locking, or latching mechanisms
    • H01H9/28—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member
    • H01H9/281—Interlocking, locking, or latching mechanisms for locking switch parts by a key or equivalent removable member making use of a padlock
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
    • H01H85/02—Details
    • H01H85/24—Means for preventing insertion of incorrect fuse

Definitions

  • the invention relates to a circuit breaker unit according to the preamble of patent claim 1.
  • switch fuse units and the fuse plugs and rocker switches used in such switch fuse units are used in a wide variety of designs in buildings, both in private and commercial buildings, in particular in buildings in which machines are operated electrically. It is also possible to use such switch fuse units or components, e.g. use the rocker switch or the safety plug directly for the electrical protection of electrically operated machines on or in machine elements or housings.
  • a switch fuse unit with rocker switch and fuse link is known for example from DE 34 06 815 C2.
  • Such switch fuse units are used to automatically interrupt the circuit and thus the electrical supply to machines and devices when the current or the power in the circuit exceed a certain fixed value.
  • fuse inserts with different characteristic values can be inserted in the switch fuse units or in the fuse plugs.
  • Switch fuse units of this type are also used in particular to reliably reliably interrupt the circuit, in particular when repairs are required to the electrical devices and machines.
  • the rocker switch or the fuse plug with the corresponding fuse insert which is pivotably mounted in a housing of the switch fuse unit between a switch-on position and a switch-off position, is moved into its switch-off position.
  • the circuit is interrupted, so that in particular repairs to electrically operated machines and devices can be carried out safely.
  • rocker switch or the safety plug will be moved unintentionally from its off position to the on position, e.g. by the fact that the elements have been set inaccurately and are in an intermediate position from which they fall back into the switch-on position, or by a third person who accidentally bumps into the device or deliberately moves it into the switch-on position because it has not been informed of any repairs that may still be taking place and a possible hazard.
  • This task is performed by a circuit breaker unit
  • Claims 2 to 10 describe advantageous embodiments of the switch protection according to the invention. unit.
  • the fuse plug is withdrawn from its working position from the switch fuse unit until the through opening of the fuse plug is flush with the through hole of the switch fuse unit or a component thereof or the two through openings overlap to such an extent that a locking device, e.g. a standard padlock or a lead wire through which two through openings can be inserted.
  • a locking device e.g. a standard padlock or a lead wire through which two through openings can be inserted.
  • the "working position" of the safety plug means the position in which the safety plug can still be pivoted between its switched-on position and its switched-off position, possibly in the rocker switch.
  • the fuse plug is then no longer in its working position when it has been pulled out of the switch fuse unit or the rocker switch to such an extent that pivoting into its switch-on position is no longer possible because partial areas of the fuse plug hit housing parts of the switch fuse unit.
  • the locking device accordingly secures a longitudinal position of the fuse plug in the switch fuse unit that is shifted out of the working position.
  • the through openings in the fuse plug and in the switch fuse unit or its components preferably have an essentially congruent cross section. This results in a complete overlap of the two through openings and thus a problem-free insertion of a locking device through the through holes. It is also possible to use locking devices whose cross-sectional dimensions are adapted to an identical cross-section of both through openings, so that no axial play between the fuse plug and the switch fuse unit is possible as soon as such a locking device is introduced.
  • the through opening in the fuse plug is slightly smaller than the through opening in the switch fuse unit or the rocker switch. Since the fuse plug is inserted into the switch fuse unit or into the rocker switch, a certain play of the fuse plug in the switch fuse unit is unavoidable for production reasons and also to avoid excessive friction and wear. Slight position fluctuations in one of the insertion deviating direction are the result. A slightly smaller hole in the fuse plug therefore means that even with a possible deflection of the fuse plug caused by play in a direction deviating from the direction of insertion, a complete overlap of the through opening in the fuse plug with the through opening in the circuit breaker unit is always possible.
  • the through openings of the fuse plug and the switch fuse unit do not overlap, or only very slightly, when the fuse plug is in its working position. This avoids that very small objects can be used as the locking device, which are already caused by a possible overlap of the two through openings, e.g. caused by manufacturing tolerances, can be introduced when the safety plug is still in its working position.
  • a securing plug preferably has a holding area which bears on a housing, in particular on a positioning device of the housing, as soon as the openings are aligned or at least partially overlap.
  • a holding area is designed in particular in such a way that it interacts with the housing or the positioning device of the housing in order to reliably hold the safety plug or the rocker switch in its switched-off position. It is advantageous to design this holding area in such a way that a reliable holding function even with a large number of actuations and any signs of wear that may occur, in particular abrasion is fulfilled.
  • the holding area consists in particular of a part of a side wall of the receiving area for a fuse link. Additional design measures are avoided and the costs for the components are kept low.
  • the housing of the switch fuse unit preferably comprises stop surfaces for the rocker switch and / or the fuse plug, on which both components rest in the switched-on position or the switched-off switch rocker position. These stop surfaces support a reliable positioning of the rocker switch or the safety plug, so that the risk of incorrect positions or operating operations is also reduced as a result.
  • the housing of the switch fuse unit comprises a positioning device against which the holding area of the fuse plug bears as soon as the through holes of the fuse plug and the switch fuse unit overlap.
  • the stop surface for the securing plug and the positioning device on the housing are preferably of uniform design. This configuration also avoids the risk of incorrect operation. A long service life is ensured.
  • FIG. 1 shows a cross-sectional view of a first embodiment of a switch fuse unit with a rocker switch and a safety plug, the rocker switch being in the switched-on position;
  • FIG. 2 shows a cross-sectional view of the embodiment shown in FIG. 1, the rocker switch being in the off position;
  • Fig. 3 is a cross-sectional view of the embodiment shown in Figures 1 and 2, wherein the rocker switch is secured in the off position.
  • FIG. 4 shows a cross-sectional view of a second embodiment of a switch fuse unit with a fuse plug, the fuse plug being in the switched-on position
  • Fig. 5 is a cross-sectional view of the embodiment shown in Fig. 4 with the fuse plug in the off position;
  • Fig. 6 is a cross sectional view taken along line A-A shown in Fig. 5.
  • Fig. 1 the structural structure of a switch fuse unit 1, a rocker switch 30 and a fuse plug 10 according to the invention can be clearly seen.
  • the switch fuse unit 1 comprises a housing 2 in which a rocker switch 30 is pivotally mounted so that it can be pivoted between the switch-on position shown in FIG. 1 and the switch-off position shown in FIG. 2.
  • a safety plug 10 is inserted into the rocker switch 30 and is in its end position in FIG. 1.
  • a fuse link 20 is inserted into the fuse plug 10 and is contacted on two sides by contact devices 51, 52 in order to complete a circuit.
  • the safety plug 10 has a handle part 11, into which a through opening 15 is made.
  • the rocker switch 30 is provided with an operating handle 31, into which a through opening 35 is introduced.
  • the passage opening 35 has an insertion aid 36 on the side facing away from the securing plug 10, which is implemented by a funnel-like extension 36 of the passage opening 35.
  • the through opening 15 on its side facing away from the actuating handle 31 could also be widened in the sense of an insertion aid.
  • the two through openings 15 and 35 are offset or positioned at a distance from one another so that they do not overlap or are in alignment with one another, so that no locking device can be inserted through the through openings 15, 35 when and as long as the securing plug 10 is in its working position.
  • the safety plug 10 or part of the handle part 11 of the safety plug 10 bears against a stop surface 5 of the housing 2.
  • the stop surface 5 is formed uniformly with a positioning device 3.
  • the function of the positioning device 3 will be explained in more detail later in connection with FIG. 3.
  • the housing 2 has a further stop surface 4 on which the rocker switch 30 or its actuating handle 31 abut when the rocker switch 30 is in its switched-off position according to FIG. 2. It is clearly visible that the contacts 51 and 52 no longer contact the fuse link 20 and the circuit is consequently interrupted. All reference numerals and parts in FIG. 2 correspond to those shown in FIG. 1.
  • the safety plug 10 is still in its end position in Fig. 2 in the rocker switch 30, so that the have not changed relative positions of the spaced through opening 15 in the securing plug 10 and the through opening 35 in the rocker switch 30.
  • the rocker switch 30 can therefore be moved back into its switched-on position according to FIG. 1 by the action of force against the actuating handle, to the right in FIG. 2; however, the introduction of a locking device through the through openings 15, 35 is ruled out because of their non-existing overlap.
  • the rocker switch 30 is therefore in an unsecured switch-off position, the position being held in the switch-off position only by a spring device 53. As shown in FIG. 2, a pivoting movement in the direction of the switch-on position requires compression of the spring 53 and thus application of force.
  • FIGS. 1 and 2 show the embodiment shown in FIGS. 1 and 2, the switch protection unit 1 being in a secured switch-off position.
  • the safety plug 10 is pulled out of its end position in the direction of the insertion opening of the rocker switch 30 by a length x, which in this embodiment is approximately 7 mm.
  • the passage opening 15 of the safety plug 10 is now completely aligned with the passage opening 35 of the rocker switch 30.
  • a locking device here a schematically illustrated, standard padlock 40, which has been passed through both through openings 15 and 35. A displacement of the safety plug 10 into its end position or out of the rocker switch 30 is thus excluded.
  • the locking device 40 here the padlock, does not have to meet any particular geometric or structural requirements. It only has to have a size dimension that allows the locking device to be passed through the through openings.
  • FIG. 4 shows a second embodiment of a circuit breaker unit 1 'according to the invention.
  • This embodiment does not include a rocker switch, but only a fuse plug 70, on which a guide element 76 is arranged.
  • the structure of the fuse plug 70 corresponds essentially to the structure of the fuse plug 10 used in the first embodiment.
  • the fuse plug 70 has a grip part 71 with a through opening 75, a receiving area 72 for the fuse link 20 and a holding area 73.
  • the guide element 76 is fastened laterally in the vicinity of the handle part 71 of the securing plug 70.
  • the guide element 76 is guided within the housing 72 of the switch fuse unit 1 '. It has a latching element 79 which engages with (very schematically illustrated) latching elements 78 of the switch fuse unit in the switch-on and switch-off position of the fuse plug 70, so that latched ones End positions are realized.
  • the guide element 76 also has a blocking opening 80 into which a blocking bolt 62 of a switching and blocking device 60 engages when the switching and blocking device 60 is placed in the on position by means of an actuating switch 61. If the safety plug 70 is in its switched-off position, the actuating switch 61 of the switching and blocking device 60 cannot be placed in the on position because the blocking bar 62 cannot be inserted into the blocking opening 80.
  • the housing 2 of the switch protection unit 1 ' has a pin with a through opening 7 with an insertion aid 36.
  • the positioning of the through opening 7 in the housing 2 with respect to the through opening 75 in the handle part 71 of the securing plug 70 is clear in FIG. 5.
  • the safety plug 70 is in its working position, the through openings 75 and 7 do not overlap, so that no locking element can be guided through the through openings 7, 75.
  • FIG. 6 shows a cross section along the line A-A shown in FIG. 5. It is particularly visible here how the securing plug 70, which has a connecting element 77 in the form of a dovetail, engages in a corresponding recess in the guide element 76.
  • the fuse plug 70 is therefore connected to the guide element 76 in a positive and frictional manner by simply pushing it into the switch fuse unit 1 '.

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Switches With Compound Operations (AREA)
  • Push-Button Switches (AREA)
  • Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
  • Breakers (AREA)
  • Coupling Device And Connection With Printed Circuit (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)

Abstract

L'invention concerne une unité de fusible à commutateur (1) pourvue d'un boîtier (2) dans lequel est logé un bouchon de fusible (10) basculant entre une position d'arrêt et une position de marche, comprenant une manette (11) et une zone de réception (12) pour une cartouche fusible (20) et pouvant être inséré jusqu'à une position de travail dans l'unité de fusible à commutateur (1). L'unité de fusible à commutateur (1) ou des éléments lui appartenant (2, 30) ainsi que la manette (11) du bouchon de fusible (10) présentent chacun une ouverture de passage (15, 35) placée de telle façon que les ouvertures de passage (15, 35) ne se recouvrent pratiquement pas lorsque le bouchon de fusible (10) se trouve dans sa position de travail alors qu'elles s'alignent au moins partiellement pour recevoir un élément de verrouillage (40) lorsque le bouchon de fusible (10) se trouve dans une position au moins partiellement retirée de sa position de travail dans l'unité de fusible à commutateur (1).
EP00951410A 1999-07-22 2000-07-20 Unite de fusible a commutateur pourvue d'un verrouillage de maintien Expired - Lifetime EP1198807B1 (fr)

Applications Claiming Priority (5)

Application Number Priority Date Filing Date Title
DE19934542 1999-07-22
DE29912853U DE29912853U1 (de) 1999-07-22 1999-07-22 Schaltersicherungseinheit mit Halterverriegelung
DE1999134542 DE19934542C1 (de) 1999-07-22 1999-07-22 Schaltersicherungseinheit mit Halterverriegelung
DE29912853U 1999-07-22
PCT/EP2000/006945 WO2001008180A1 (fr) 1999-07-22 2000-07-20 Unite de fusible a commutateur pourvue d'un verrouillage de maintien

Publications (2)

Publication Number Publication Date
EP1198807A1 true EP1198807A1 (fr) 2002-04-24
EP1198807B1 EP1198807B1 (fr) 2004-05-19

Family

ID=26054309

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00951410A Expired - Lifetime EP1198807B1 (fr) 1999-07-22 2000-07-20 Unite de fusible a commutateur pourvue d'un verrouillage de maintien

Country Status (9)

Country Link
US (1) US6727797B1 (fr)
EP (1) EP1198807B1 (fr)
CN (1) CN1188877C (fr)
AT (1) ATE267453T1 (fr)
AU (1) AU765191B2 (fr)
CZ (1) CZ299011B6 (fr)
DE (1) DE50006510D1 (fr)
PL (1) PL195901B1 (fr)
WO (1) WO2001008180A1 (fr)

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Also Published As

Publication number Publication date
PL353059A1 (en) 2003-10-06
DE50006510D1 (de) 2004-06-24
CZ299011B6 (cs) 2008-04-02
AU6436000A (en) 2001-02-13
CN1363104A (zh) 2002-08-07
PL195901B1 (pl) 2007-11-30
CZ2002237A3 (cs) 2002-06-12
AU765191B2 (en) 2003-09-11
CN1188877C (zh) 2005-02-09
WO2001008180A1 (fr) 2001-02-01
US6727797B1 (en) 2004-04-27
EP1198807B1 (fr) 2004-05-19
ATE267453T1 (de) 2004-06-15

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