EP0139886B1 - Interrupteur de protection - Google Patents

Interrupteur de protection Download PDF

Info

Publication number
EP0139886B1
EP0139886B1 EP84108801A EP84108801A EP0139886B1 EP 0139886 B1 EP0139886 B1 EP 0139886B1 EP 84108801 A EP84108801 A EP 84108801A EP 84108801 A EP84108801 A EP 84108801A EP 0139886 B1 EP0139886 B1 EP 0139886B1
Authority
EP
European Patent Office
Prior art keywords
protective switch
switch according
circuit
lamp
glow
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
Application number
EP84108801A
Other languages
German (de)
English (en)
Other versions
EP0139886A2 (fr
EP0139886A3 (en
Inventor
Klaus Dipl.-Ing. Becker
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.)
Lindner Fabrik Elektrischer Lampen und Apparate GmbH
Original Assignee
Lindner Fabrik Elektrischer Lampen und Apparate 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 Lindner Fabrik Elektrischer Lampen und Apparate GmbH filed Critical Lindner Fabrik Elektrischer Lampen und Apparate GmbH
Priority to AT84108801T priority Critical patent/ATE40613T1/de
Publication of EP0139886A2 publication Critical patent/EP0139886A2/fr
Publication of EP0139886A3 publication Critical patent/EP0139886A3/de
Application granted granted Critical
Publication of EP0139886B1 publication Critical patent/EP0139886B1/fr
Expired 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
    • H01H71/04—Means for indicating condition of the switching device
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/042—Means for indicating condition of the switching device with different indications for different conditions, e.g. contact position, overload, short circuit or earth leakage
    • 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
    • H01H71/04—Means for indicating condition of the switching device
    • H01H2071/048—Means for indicating condition of the switching device containing non-mechanical switch position sensor, e.g. HALL sensor

Definitions

  • the invention relates to a circuit breaker with the features of the preamble of claim 1.
  • circuit breakers circuit breakers, residual current circuit breakers, residual voltage circuit breakers, overvoltage protection switches
  • circuit breakers circuit breakers, residual current circuit breakers, residual voltage circuit breakers, overvoltage protection switches
  • a toggle is provided for switching on and off by hand, for triggering in the event of a malfunction essentially a magnetic release with an impact armature and / or a bimetal release. Due to the toggle position, the user of the circuit breaker can see whether it is switched on or off. Versions are also known in which the user can recognize whether the device has been switched off arbitrarily or whether it has switched off automatically (because of a fault).
  • US-A-3 544 749 describes a circuit breaker which has a manually operable toggle for opening or closing the contacts and a trigger mechanism for automatically opening the contacts due to predetermined overload conditions in the protected circuit.
  • the toggle of the circuit breaker can be illuminated by means of a light source arranged in the switch housing when the circuit breaker has tripped or the contacts are generally open. What is not recognizable with this switch is, however, what was the reason for the automatic triggering, namely an overload accident or a short circuit. In the event of an overload, it is generally safe to switch the circuit breaker back on by hand, since the electrothermal switching device, which is actuated via a bimetal, works in conjunction with free-triggering means to prevent it from being switched on again. If, on the other hand, a switch-on is attempted several times in the event of a short circuit, there is a risk that either the circuit breaker itself, parts of the line network or the connected electrical consumer will be destroyed.
  • the invention has for its object to equip a generic circuit breaker such that the user can easily and unmistakably recognize not only the fault, but also its cause - short circuit or overcurrent.
  • the possibility of reliable detection should also exist in dark rooms, such as, for example, cellar rooms, since a majority of the circuit breakers in question are used in poorly lit rooms and not infrequently the associated room lighting has failed after a (line) circuit breaker has responded .
  • This object is achieved by the characterizing features of claim 1.
  • the electro-optical display device interacts in whole or in part only with one or (alternatively!) Only with the other.
  • the electro-optical element should respond when the magnetic release has caused the circuit breaker to switch off, since then there are dangers for the device and the user, which were described at the beginning.
  • a monostable electrical on / off switch is to be connected either to the impact anchor of the magnetic release or to the bimetal strip of the bimetal release, which can be reset by hand to the off position by means of the manually operated knob.
  • a device has the effect that when one or (alternatively!) The other part responds, the electro-optical display device is switched on until the switch is switched on (reset) by actuating the toggle. If the electro-optical display device interacts with the magnetic release, the operator knows that the short circuit must first be eliminated before resetting. If, on the other hand, the electro-optical display device is connected to the bimetallic element, the operator knows when the display device is on that it can be safely switched on again.
  • the attention of the user is particularly strong when the light source (light sources) is (are) powered by a flashing circuit.
  • the flashing circuit in accordance with claims 8 and 9 so that, in the presence of a charging circuit and a discharge circuit, the light source designed as a glow lamp generally falls into the flashing state when the circuit breaker responds, which is done in that the parallel to the main switch contact lying charging circuit is energized when the main switch contact opens and the light source lights up continuously when the magnetic release is activated.
  • the circuit breaker responds, which is done in that the parallel to the main switch contact lying charging circuit is energized when the main switch contact opens and the light source lights up continuously when the magnetic release is activated.
  • symbolize the different causes of response by means of different flashing frequencies. In this way, multiple information (comparable to the above) is conveyed with one and the same light source with simple formwork means.
  • the circuit breaker 1 is provided with a switching device 2, which can be switched on and off manually by means of a toggle 3 and can be switched off electromagnetically and / or electrothermally by means of a magnetic release 4 or a bimetallic release 5.
  • the magnetic release 4 has an impact armature 6, the bimetallic release 5 has a bimetallic strip 7.
  • the impact anchor 6 and the bimetallic strip 7 interact with the toggle 3 as well as with a main switch contact 9 through a coupling device 8 (not shown in more detail).
  • the coupling device 8 is designed in such a way that the main switch contact 9 opens when only one trigger responds and causes the accident shutdown.
  • a display current branch 12 which is parallel to the main switch contact 9 and contains a resistor 10 and a glow lamp 11, is provided, which is energized when the main switch contact 9 is opened and another switch contact 13 operatively connected to the impact armature 6 is closed, and the lighting the glow lamp 11 caused.
  • the glow lamp 11 in turn is arranged behind a window-like opening 14 in the circuit breaker housing wall 15 and is thus visible to the outside from the user.
  • the toggle and glow lamp should be arranged on the same side of the housing facing the user.
  • the impact armature 6 acts on the further switching contact 13 also via a further coupling device 16, not shown in detail.
  • 17 denotes the “hot” side of the phase conductor
  • 18 denotes the “cold” side of the phase conductor that can be separated by the main switching contact 9, 19 the neutral conductor.
  • auxiliary resistor 20 which, in the event that no consumers are arranged on the cold side of the circuit breaker, maintains a sufficient current flow through the display current branch in the event of a fault.
  • the further switch contact 13 is dispensed with, which in the case of the one shown in FIG. 1 provides for the selective display of the glow lamp 11 only when the magnetic trigger 4 is activated. Rather, via a coupling device 16, a diaphragm 22 which is displaceable in the arrow direction 21 between the opening 14 and the glow lamp 11 is provided, which has a part 23, for example colored yellow, and a part 24, for example colored red. If only the bimetallic release 5 has responded, the glow lamp 11 is energized in the manner described above and is visible in yellow, since the part 23 lies between the opening 14 and the glow lamp 11. If, on the other hand, the magnetic release 4 has responded, the diaphragm is displaced such that the part 24 comes to lie between the glow lamp 11 and the opening 14 and the red glow of the glow lamp indicates the dangerous short-circuit condition.
  • a further glow lamp 30 is provided, which can be connected in parallel to the glow lamp 11 via a third switch contact 31.
  • the third switch contact 31 is closed when the magnetic release 4 responds by the coupling device 16 interacting with the impact armature 6, so that when the bimetallic release 5 responds only the glow lamp 11, when the magnetic release 4 responds both glow lamps 11 and 30 light up.
  • the glow lamp 11 is supplied with voltage by a blinking circuit 40.
  • the flashing circuit 40 has a charging circuit 41 which consists of a charging resistor 42 of a charging diode 43 and a charging capacitor 44 in series.
  • the charging circuit is parallel to the main switch contact 9.
  • a discharge circuit 45 consisting of a discharge resistor 46 and the glow lamp 11 in series, is parallel to the charging capacitor 44.
  • the charging capacitor 44 charged via the charging resistor 42 and the charging diode 43 is discharged intermittently, causing the glow lamp 11 to open after opening of the main switch contact 9 flashes.
  • the discharge circuit 45 can be connected to the neutral conductor 19 via a fourth switching contact 47, which is operatively connected to the impact armature 6 by the coupling device 16, as a result of which the glow lamp falls into a permanently lit state.
  • the discharge circuit 45 is connected to the neutral conductor 19 via a decoupling diode 48 and a decoupling resistor 49. It appears significant that, if the connections 50, 51, 52 are interchanged, different switching states of the load switch can be assigned different lighting states of the glow lamp 11.

Landscapes

  • Breakers (AREA)
  • Electrophonic Musical Instruments (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Push-Button Switches (AREA)
  • Thermally Actuated Switches (AREA)

Claims (11)

1. Disjoncteur de protection (1) comprenant un dispositif de manœuvre (2) qui peut être enclenché et déclenché à la main et qui peut être déclenché par voie électromagnétique et/ou par voie électrothermique, un garrot ou clé à main (3) étant prévu pour l'enclenchement et le déclenchement intentionnels et un déclencheur magnétique (4) possédant une armature mobile (6) et un déclencheur bimétallique (5) étant prévus comme éléments essentiels pour le déclenchement automatique, caractérisé en ce que le dispositif de manœuvre (2) coopère avec au moins un dispositif indicateur électro-optique possédant une source de lumière (lampe au néon (11)) pour l'indication sélective de la perturbation provoquant le déclenchement, qui est actionné ou rendu visible par son accouplement à l'armature mobile (6) du déclencheur mécanique (4) ou (en variante) à la bilame (7) du déclencheur bimétallique (5).
2. Disjoncteur selon la revendication 1, caractérisé en ce qu'un interrupteur électrique mar- cheiarrêt monostable (contact de commande 13)), qui peut être rappelé manuellement à la position de départ par le garrot (3), est relié à l'armature mobile (6) ou à la bilame (7).
3. Disjoncteur selon la revendication 1, caractérisé en ce que l'armature mobile (6) ou la bilame (7) coopère avec un obturateur mobile (22) recouvrant la source de lumière (lampe au néon 11)).
4. Disjoncteur selon la revendication 3, caractérisé en ce que l'obturateur (22) peut être rappelé de sa position de déclenchement à sa position d'enclenchement par son accouplement mécanique avec le garrot (3).
5. Disjoncteur selon la revendication 3 ou 4, caractérisé en ce que l'obturateur (22) est au moins partiellement en un matériau translucide coloré dans la masse.
6. Disjoncteur selon une des revendications précédentes, caractérisé en ce qu'il comprend deux sources de lumière (lampe au néon (11), lampe au néon supplémentaire (30)) de couleurs différentes ou de même couleur, la première (11) réagissant à l'ouverture d'un contact de commande principal (9) et la deuxième réagissant (en variante ou en plus) à l'entrée en action, soit du déclencheur bimétallique (5), soit du déclencheur magnétique (4).
7. Disjoncteur selon une des revendications précédentes, caractérisé en ce que la source de lumière (lampe au néon (11)) est alimentée électriquement par un montage de clignotement (40) à la suite d'une perturbation.
8. Disjoncteur selon la revendication 7, caractérisé en ce que le montage de clignotement (40) présente un circuit de charge (41) qui est constitué du montage en série d'une résistance de charge (42), d'une diode de charge (43) et d'un condensateur de charge (44), selon un ordre quelconque, qui shunte le contact de commande principal (9), lequel coupe un premier conducteur (conducteur de phase), ainsi qu'un circuit de décharge (45) qui est parallèle au condensateur de charge (44) et contient la lampe au néon (11) et une résistance de décharge (46).
9. Disjoncteur selon la revendication 8, caractérisé en ce que le circuit de décharge (45) peut être connecté électriquement à un second conducteur (conducteur neutre (19)) à travers un interrupteur (quatrième contact de commande (47)) qui est en liaison fonctionnelle avec le déclencheur magnétique (4) ou avec le déclencheur bimétallique (5).
10. Disjoncteur selon une des revendications précédentes, caractérisé en ce qu'une résistance auxiliaire (20) est prévue entre le conducteur de phase et le conducteur neutre (19).
11. Disjoncteur selon une des revendications précédentes, caractérisé en ce que le déclencheur magnétique (4) coopère avec un dispositif inhibiteur d'enclenchement qui, à la suite d'un court- circuit, empêche le mouvement d'enclenchement du garrot (3) à commande manuelle.
EP84108801A 1983-09-30 1984-07-25 Interrupteur de protection Expired EP0139886B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT84108801T ATE40613T1 (de) 1983-09-30 1984-07-25 Schutzschalter.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3335494A DE3335494C2 (de) 1983-09-30 1983-09-30 Schutzschalter
DE3335494 1983-09-30

Publications (3)

Publication Number Publication Date
EP0139886A2 EP0139886A2 (fr) 1985-05-08
EP0139886A3 EP0139886A3 (en) 1986-06-11
EP0139886B1 true EP0139886B1 (fr) 1989-02-01

Family

ID=6210555

Family Applications (1)

Application Number Title Priority Date Filing Date
EP84108801A Expired EP0139886B1 (fr) 1983-09-30 1984-07-25 Interrupteur de protection

Country Status (3)

Country Link
EP (1) EP0139886B1 (fr)
AT (1) ATE40613T1 (fr)
DE (2) DE3335494C2 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3802647C2 (de) * 1988-01-29 1998-02-05 Lectra Trading Ag Anzeigevorrichtung für den Schaltzustand eines Überlastschalters
US6061391A (en) * 1997-02-28 2000-05-09 Fujitsu Limited Error indicator, and data modulator-demodulator and indicating method of light emitter therein
CN100395856C (zh) * 2006-01-27 2008-06-18 上海电器科学研究所（集团）有限公司 热磁式脱扣器及其脱扣原因指示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE735977C (de) * 1940-11-05 1943-06-03 Voigt & Haeffner Ag Elektrischer Selbstschalter
DE1043478B (de) * 1956-06-26 1958-11-13 Voigt & Haeffner Ag Selbstschalter, insbesondere Installationsselbstschalter
US3256407A (en) * 1963-10-28 1966-06-14 Gen Electric Circuit breaker and accessory device combination
US3443258A (en) * 1966-11-10 1969-05-06 Square D Co Circuit breaker with trip indicator
US3544749A (en) * 1968-03-25 1970-12-01 Westinghouse Electric Corp Circuit interrupter with illuminated handle
US3614697A (en) * 1970-07-20 1971-10-19 Square D Co Molded case electric circuit breaker with fuse and indicator lamp
US4056816A (en) * 1976-10-05 1977-11-01 Guim R Light emitting diode blown circuit breaker indicator

Also Published As

Publication number Publication date
EP0139886A2 (fr) 1985-05-08
DE3476605D1 (en) 1989-03-09
DE3335494C2 (de) 1985-10-10
ATE40613T1 (de) 1989-02-15
DE3335494A1 (de) 1985-05-02
EP0139886A3 (en) 1986-06-11

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