EP1173872B1 - Schmelzsicherungsschalter - Google Patents

Schmelzsicherungsschalter Download PDF

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Publication number
EP1173872B1
EP1173872B1 EP00918568A EP00918568A EP1173872B1 EP 1173872 B1 EP1173872 B1 EP 1173872B1 EP 00918568 A EP00918568 A EP 00918568A EP 00918568 A EP00918568 A EP 00918568A EP 1173872 B1 EP1173872 B1 EP 1173872B1
Authority
EP
European Patent Office
Prior art keywords
switch
fuse
slide
housing
switching slide
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
EP00918568A
Other languages
German (de)
English (en)
French (fr)
Other versions
EP1173872A1 (de
Inventor
Adolf Tetik
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.)
Felten & Guilleaume KG
Original Assignee
Felten & Guilleaume KG
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 Felten & Guilleaume KG filed Critical Felten & Guilleaume KG
Publication of EP1173872A1 publication Critical patent/EP1173872A1/de
Application granted granted Critical
Publication of EP1173872B1 publication Critical patent/EP1173872B1/de
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
    • 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
    • H01H85/547—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 sliding fuse carrier
    • 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
    • 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
    • H01H85/0078—Security-related arrangements
    • H01H85/0091—Security-related arrangements providing disconnection of the neutral line
    • 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
    • H01H85/30—Means for indicating condition of fuse structurally associated with the fuse
    • H01H85/32—Indicating lamp structurally associated with the protective device

Definitions

  • the slide 24 is slidably mounted in the slide switch 22, which storage is realized in the exemplary embodiment in FIGS. 2-9 by a groove 222 embedded in the slide slide 22, into which a bar 242 formed on the slide 24 engages.
  • the carriage 24 can thus be displaced in parallel in the direction indicated by the double arrow 25 in FIG. 2 relative to the slide switch 22, which in turn is mounted in the housing 1 in the direction of the double arrow 26.
  • the shifting slide 22 is moved manually from its switch-on position (FIG. 3) to the switch-off or replacement position (FIG. 2), in which the fuse cartridge 20 is removed from the conductor to be protected or inserted into it. As shown in FIG.
  • the end contact caps 21 of the fuse cartridge 20 lie at the level of the housing contacts 14, which embrace the end contact caps 21 and rest against them. This pincer-like encirclement of the end contact caps 21 is possible because, as already discussed, these are freely accessible. If the slide 24 would remain at the level of the housing contacts 14 when the slide switch 22 was pulled out into the switch-off or replacement position (FIG. 2), the fuse cartridge 20 would lie within the slide switch 22, as a result of which it would not be accessible and could not be removed without difficulty could. According to the invention, to solve this problem, it is provided that the slide 24 is automatically moved in the direction of the double arrow 25 when the slide switch 22 is displaced.
  • a pin 27 is formed on the slide 24 and engages in a link 28 arranged on the insulating material housing 1.
  • this link 28 is incorporated into the broad side wall 29 of the housing half 2 (see FIG. 8) and is a groove, the width of which is slightly larger than the diameter of the pin 27, so that the latter with slight play the backdrop 28 can slide.
  • the pin 27 can reach through the intermediate wall 224 of the slide switch 22, it has a corresponding opening 225.
  • Said intermediate wall 224 carries the groove 222 necessary for guiding the slide 24.
  • the setting 28 must be shaped so that it moves the pin 27 when the slide switch 22 is displaced in the direction of the double arrow 25 and thus causes the discussed displacement of the carriage 24 in the direction of the double arrow 25.
  • the first section 280 of the link 28 runs in the direction of displacement of the slide switch 22 (double arrow 26), so that as long as the pin 27 is in this first section 280, the slide 24 does not face the slide switch 22 is moved.
  • the second section 281 of the link 28 adjoining the first section 280 deviates from the displacement direction of the slide switch 22 (double arrow 26). From this design of the setting 28 it follows that when the slide switch 22 is moved, the fuse cartridge 20, as long as it is in the area of the housing contacts 14, is only moved in parallel, as a result of which its end contact caps 21 are pulled out of the housing contacts 14 perpendicularly to the latter. Any lateral movement of the fuse cartridge 20, which would lead to unnecessary friction of the end contact caps 21 on the housing contacts 14, is thus avoided. As shown in FIG. 8, said second section 281 likewise has a straight course, but includes an angle 30 of 45 ° with the direction of displacement of the slide switch 22, symbolized by the double arrow 26.
  • the extent of the deviation of the second link section 281 from the slide switch displacement direction can in principle be chosen as desired, but the following two restrictions must be observed: If the angle 30 is chosen to be relatively small (with which the second link section 281 deviates only slightly from the direction of shift slide displacement), there is only a slight displacement of the slide 24, which may be too small, around the goal of the slide displacement, namely making one accessible Section of the fuse cartridge 20 to achieve. On the other hand, at relatively large angles 30 there is a high sliding friction between pin 27 and link 28, whereby the displacement of the slide switch 22 is inhibited or at least becomes problematic.
  • angles 30 in the range between 30 and 60 ° have proven to be ideal for achieving the purpose according to the invention.
  • the transition from the first section 280 to the second section 281 is designed in the form of an arc of a circle so that the pin 27 can slide along the entire backdrop 28 without any problems.
  • the straight course of the two sections 280, 281 shown in FIG. 8 is not mandatory, the displacement of the slide 24 according to the invention is also achieved if the second section 281 has a curved course, for example that of a circular arc, a parabola section or the like.
  • scenes 28 designed in this way can also be regarded as lying within the scope of the invention.
  • the diameter of the bore 240 arranged in the carriage 24 is adapted to the diameter of the fuse cartridge 20 to be accommodated, which in turn depends on the nominal current of the fuse cartridge 20. Changing the response nominal current of the fuse switch can therefore be achieved in a particularly simple manner by using fuse cartridges 20 with different nominal currents.
  • the fuse switch only needs to be changed to a very small extent for this nominal current change, namely only different slides 24 need to be provided which have bores 240 of different sizes (cf. FIGS. 7a-c).
  • Such a connected conductor is usually the neutral conductor which, together with the conductor to be monitored, forms a single-phase circuit for downstream consumers of the fuse switch.
  • the connection of the neutral conductor has the advantage of all-pole disconnection of the downstream consumers.
  • Busbars 96 are provided, the first ends of which protrude into the lower connecting terminals 9. The second ends of these busbars 96 lie below the two housing contacts 14.
  • a U-shaped groove 226 is worked into this, into which a likewise U-shaped contact bridge 31 is clamped.
  • the two ends 32 of this contact bridge 31 lie outside said groove 226 and come into contact with the second ends of the busbars 96 when the slide switch 22 is switched on.
  • a helical compression spring 33 which presses the contact bridge ends 32 against the second ends of the busbars 96.
  • an electrical signal circuit 53 is arranged, by means of which it can be indicated that the fuse cartridge 20 currently in the fuse switch is defective and must therefore be replaced.
  • This signal circuit 53 which is shown separately in FIG. 13, has two connection contacts 54, 55. When the slide switch 22 is switched on, each connection contact 54, 55 is connected to an end contact cap 21 of the fuse cartridge 20.
  • This very simply constructed signal circuit 53 is a series circuit comprising a resistor 36 and a glow lamp 37, which two components are arranged on a printed circuit board 38.
  • the resistor 36 runs with its longitudinal axis normal to the printed circuit board 38 and one of its connecting wires is bent parallel to the resistor 36.
  • a contact plate 40 is attached to the slide 24 and bears against the end contact cap 21, which is located on the left in FIG.
  • This contact plate 40 which is shown separately in FIG. 14, has a section 41 which projects beyond the slide 24 and which is guided through a slot-like recess 244 in the slide 24. In the switched-on position of the slide switch 22, said section 41 comes into contact with the first connection contact 54 of the signal circuit 53 (cf. FIG. 3).
  • the contact plate 40 is fixed on the slide 24 by means of a groove 245 arranged in the slide 24, in which the contact plate 40 is clamped.
  • the first connection contact 54 is preferably formed by the connection wire of a component of the signal circuit 53, wherein according to the exemplary embodiment of the drawings the first connection contact 54 is formed by the connection wire of this resistor 36 running parallel to the resistor 36.
  • the second connection contact 55 of the signal circuit is formed by a helical spring 39, the first end of which is connected to the glow lamp 37 and the second end of which projects freely from the printed circuit board 38 in the direction of the carriage 24. If the slide switch 22 is in its switched-on position (FIG.
  • the section 41 of the contact plate 40 comes into contact with the resistance connecting wire and the freely projecting end of the coil spring 39 comes into contact with the other end contact cap 21 of the fuse cartridge 20.
  • the mode of operation of the signal circuit 53 can best be discussed on the basis of its circuit diagram, shown in FIG. 15: If the fuse cartridge 20 is intact, its end contact caps 21 are short-circuited and both connection contacts 54, 55 of the signal circuit are at the same voltage level, which means in them no current flow and the glow lamp 37 can not light. If the fuse wire of the fuse cartridge 20 melts, the signal circuit 53 is in series with the downstream consumer (represented by R load ).
  • the resistance of the glow lamp 37 is very high, that is to say more than 1000 times greater than an average load resistance R load , only a very small current flows through the series circuit comprising the signal circuit 53 and the consumer. However, this low current is sufficient to make the glow lamp 37 light up and thus to indicate the defect of the fuse cartridge 20. So that the glow of the glow lamp 37 can be seen from the outside, the upper cover plate 228 has an opening 229 in the area of the glow lamp 37, which can optionally be closed by means of a transparent material, such as plastic or glass.
  • the shifting slide 22 could just as well be moved along an arc-shaped path.
  • the slide 24 here has a base plate (which is arranged invisibly in FIG. 10 below the fuse cartridge 20 and rests on the slide switch 22), to which base plate side walls 243 are formed. These side walls 243 extend out of the image plane of FIGS. 10 a, b and clamp the fuse cartridge 20 between them.
  • Guide strips 227 are fixed to the slide switch 22 and also protrude from the image plane of FIGS. 10a, b.
  • the side walls 243 can slide along these guide strips 227, as a result of which the slide 24 is mounted so as to be displaceable in the longitudinal direction of the fuse cartridge 20.
  • On one of the side walls 243 is formed a plate 246 which extends parallel to the slide base plate and projects beyond the guide bar 227 and which carries the pin 27.
  • the direction of displacement of the slide switch 22 does not run linearly but is in the form of an arc of a circle, as is indicated by the double arrow 26 '.
  • a section 281 of the link 28 must also deviate from the pivoting direction of the slide valve 22.
  • the first section 280 of the link 28 runs in the direction of the displacement direction and, like this displacement direction, is circular-arc-shaped.
  • the second section 281 deviates from this direction of displacement of the slide switch 22 in that it has a straight course and is arranged to form approximately a tangent to the circular arc course of the first section 280.
  • the slide 22 is displaced relative to the slide 22 so that the fuse cartridge 20 sectionally switches the slide switch 22 surmounted.
  • the slide switch 22 is moved into its switched-on position (FIG. 10 a)
  • the fuse cartridge 20 is displaced in its longitudinal direction and its end contact caps 21 can, as shown in FIG. 10 a, be in the switched-on position of the slide switch 22 by the stationary housing contacts 14, which are again tulip-like are included.
  • the translatory displacement of the slide switch 22 it is furthermore possible to mount it in the housing 1 in a rotatable manner, that is to say pivotably. This case, which is also encompassed by the present invention, is illustrated in FIGS. 11 and 12, with the switch-off or exchange position analogous to FIG. 2 in FIG.
  • FIG. 11 and the switch-on slide 22 in FIG. 12 analogous to FIG is shown.
  • the fuse shown here like the one according to FIG. 10, has only one pole, ie, in contrast to the embodiment according to FIGS. 2-9, does not switch the neutral conductor on and off together with the conductor to be monitored. This connection of the neutral conductor is therefore not a mandatory, but merely an optional feature of the present invention.
  • the slide switch 22 is designed here as a disc.
  • the guide strips 23, 23 ' are designed in the form of a circular arc analogously to FIGS. 10a, b and are formed onto the housing halves 2, 3 concentrically with the disk-shaped slide switch 22. As in FIGS.
  • the slide 24 has a base plate (which in FIGS. 11, 12 is arranged invisibly under the fuse cartridge 20 and rests on the slide switch 22), on which base plate side walls 243 are formed. These side walls 243 extend out of the image plane of FIGS. 11, 12 and clamp the fuse cartridge 20 between them. Guide strips 227 are fixed to the slide switch 22 and also protrude from the image plane of FIGS. The side walls 243 can slide along these guide strips 227, as a result of which the slide 24 is mounted so as to be displaceable in the longitudinal direction of the fuse cartridge 20.
  • the peg 27 is formed on the underside of the slide base plate resting on the slide switch 22, which protrudes through the opening 225 and engages in the link 28 arranged on the broad side wall 29 of the housing half 2.
  • the pivoting direction of the slide switch 22 is not linear, but is in the form of an arc of a circle, as is indicated by the double arrow 26 ′′.
  • at least a portion of the link 28 must also deviate from the pivoting direction of the slide switch 22 here.
  • the backdrop 28 is designed in the form of an arc of a circle, the center of the circle of the backdrop 28 being shifted relative to the center of the slide switch 22.
  • the idea according to the invention of displacing the slide 24 when the slide switch 22 is pivoted relative to the slide slide 22 so far that the fuse cartridge 20 projects beyond the slide slide 22 in sections can be achieved. So that the pivoting of the slide switch 22 can be carried out by hand, a lever 35, which always projects above the housing 1, is formed on the slide switch 22.
  • a signal circuit 53 can also be provided to indicate the defect of the fuse cartridge 20 used. It was explicitly drawn in the attached drawings, however, only in Fig.10a, b. In contrast to the signal circuit according to FIGS. 2, 3 and 13, both connection contacts 54, 55 are formed here by separate components, namely by pins that extend out of the image plane of FIGS. 10 a, b. Furthermore, a print plane 38 was dispensed with and the components of the signal circuit 53, which again consists of a series connection of glow lamp 37 and resistor 36, were fixed directly on the slide switch 22. Another difference to Fig.
  • the snap-in connection there comprises on the one hand two snap-in lugs 50 which are fixed to the side walls 220, 221 of the slide switch 22 and, on the other hand, indentations 51 which are let into the guide strips 23, 23 ' ,
  • the locking lugs 50 and the indentations 51 are positioned such that the locking lugs 50 engage in the indentations 51 in the switched-on position of the slide switch 22 (FIG. 3 and FIG. 12).
  • locking lugs 50 are not rigidly fixed to the switch slide side walls 220, 221, rather a leaf spring 52 is provided, the second end of which is fixed to the slide switch 22 and the first, free end of which supports the locking clip 50.
  • locking lug 50, leaf spring 52 and switching slide 22 are formed in one piece, which can be solved in practice most simply by forming leaf spring 52 and locking lug 50 as a sprue on the switching slide 22.
  • the advantage of the arrangement of the locking lug 50 on a leaf spring 52 is that the locking lug 50 pivots slightly from these guide strips 23, 23 'during displacements of the slide switch 22, during which the locking lug 50 rests on the guide strips 23, 23', ie this can be rejected, as a result of which the detents 50 do not rub excessively strongly on the guide strips 23, 23 '. This avoids an inhibition of the switching slide movements. Nevertheless, it is entirely possible to fix the locking lugs 50 rigidly on the slide switch 22. The purpose of this latching connection is to counter the shifting of the slide switch 22 from its switch-on position to the switch-off or replacement position by a holding force.
  • the purpose of the locking connection just discussed is achieved in the same way if the locking lugs 50 are formed on the guide strips 23, 23 'and the indentations 51 are embedded in the side walls 220, 221 of the slide switch 22, which is why this embodiment is also within the scope of the invention.
  • the number of latches 50 or indentations 51 can also be selected as desired, the lower limit of course being a latch 50 and an associated indentation 51.
  • the latching connection according to the invention can also be provided in the case of a fuse switch, the switch slide 22 of which has the shapes shown in FIGS. 10a, b and 11.12. In this case, as explicitly shown in FIGS. 11, 12, different from FIGS.
  • the leaf spring 52 is to be fixed with the latch 50 in the housing 1 and the indentation 51 is molded onto the slide switch 22. It should be emphasized in particular that the locking connection according to the invention just discussed is completely independent of the presence of a sliding carriage 24. Said snap-in connection can therefore also be provided in those fuse switches which do not have a slide 24 and in which the fuse cartridge 20 is held directly on the slide switch 22.

Landscapes

  • Fuses (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Keying Circuit Devices (AREA)
  • Electronic Switches (AREA)
  • Slide Switches (AREA)
EP00918568A 1999-04-20 2000-04-20 Schmelzsicherungsschalter Expired - Lifetime EP1173872B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
AT70299 1999-04-20
AT0070299A AT412927B (de) 1999-04-20 1999-04-20 Schmelzsicherungsschalter
PCT/AT2000/000099 WO2000063940A1 (de) 1999-04-20 2000-04-20 Schmelzsicherungsschalter

Publications (2)

Publication Number Publication Date
EP1173872A1 EP1173872A1 (de) 2002-01-23
EP1173872B1 true EP1173872B1 (de) 2003-03-19

Family

ID=3497571

Family Applications (1)

Application Number Title Priority Date Filing Date
EP00918568A Expired - Lifetime EP1173872B1 (de) 1999-04-20 2000-04-20 Schmelzsicherungsschalter

Country Status (12)

Country Link
EP (1) EP1173872B1 (cs)
CN (1) CN100362611C (cs)
AT (2) AT412927B (cs)
AU (1) AU762695B2 (cs)
CZ (1) CZ302064B6 (cs)
DE (1) DE50001496D1 (cs)
IL (2) IL146058A0 (cs)
MY (1) MY122714A (cs)
PL (1) PL194064B1 (cs)
SK (1) SK14792001A3 (cs)
TN (1) TNSN00084A1 (cs)
WO (1) WO2000063940A1 (cs)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7639112B2 (en) 2007-04-25 2009-12-29 Sony Corporation Fuse device with integrated switch
IT1397164B1 (it) * 2009-04-17 2013-01-04 Palazzoli Spa Dispositivo di segnalazione guasti, particolarmente per apparecchi elettrici quali prese interbloccate
DE102010028679B4 (de) * 2010-05-06 2020-08-06 Wöhner GmbH & Co. KG Elektrotechnische Systeme Sicherungsaufnahmevorrichtung, insbesondere für Anschlusskästen von Photovoltaikanlagen
CN102122594B (zh) * 2011-03-11 2013-05-01 上海诺雅克电气有限公司 熔断器
DE102011052198A1 (de) * 2011-07-27 2013-01-31 Phoenix Contact Gmbh & Co. Kg Sicherungsklemme
CN110416036B (zh) * 2019-07-16 2021-01-29 浙江奔一电气有限公司 多路输入汇流输出的多熔断元件的熔断器

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1115645A (fr) * 1954-12-01 1956-04-26 Dispositif de fusible avec système avertisseur de fusion du fil fusible
FR1467125A (fr) * 1965-12-13 1967-01-27 Telemecanique Electrique Sectionneur rotatif à cartouche fusible
SE329201B (cs) * 1966-11-16 1970-10-05 Siemens Ag
US3732516A (en) * 1971-11-08 1973-05-08 Square D Co Compact cartridge-type fuse holder
DE2437509C2 (de) * 1974-08-03 1982-12-30 Christian Geyer GmbH & Co, 8500 Nürnberg Sicherungstrennschalter
FR2499763A1 (fr) * 1981-02-09 1982-08-13 Schupa Elektro Gmbh & Co Kg Coupe-circuit a cartouche
DE3303471A1 (de) * 1983-02-02 1984-08-02 Siemens AG, 1000 Berlin und 8000 München Reihenklemme
EP0319606B1 (de) * 1987-12-09 1993-09-15 Klaus Bruchmann GmbH Sicherungsschalter
CN87205637U (zh) * 1987-03-28 1987-10-21 江益民 带指示的熔断器
DE3940761A1 (de) * 1989-12-09 1991-06-13 Lindner Gmbh Handbetaetigter schmelzsicherungsschalter
IT1286436B1 (it) * 1996-12-04 1998-07-08 Abb Elettrocondutture Spa Porta-fusibile sezionatore per quadro elettrico

Also Published As

Publication number Publication date
EP1173872A1 (de) 2002-01-23
CN100362611C (zh) 2008-01-16
DE50001496D1 (de) 2003-04-24
ATE235102T1 (de) 2003-04-15
TNSN00084A1 (fr) 2002-05-30
CZ302064B6 (cs) 2010-09-22
CZ20013734A3 (cs) 2002-02-13
AU3945800A (en) 2000-11-02
IL146058A (en) 2007-06-03
IL146058A0 (en) 2002-07-25
ATA70299A (de) 2005-01-15
AU762695B2 (en) 2003-07-03
AT412927B (de) 2005-08-25
CN1357154A (zh) 2002-07-03
SK14792001A3 (sk) 2002-04-04
PL194064B1 (pl) 2007-04-30
MY122714A (en) 2006-04-29
PL350457A1 (en) 2002-12-16
WO2000063940A1 (de) 2000-10-26

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