EP1054424A1 - Appareil électrique modulaire auxiliaire, notamment pour un disjoncteur ou similaire - Google Patents
Appareil électrique modulaire auxiliaire, notamment pour un disjoncteur ou similaire Download PDFInfo
- Publication number
- EP1054424A1 EP1054424A1 EP00110341A EP00110341A EP1054424A1 EP 1054424 A1 EP1054424 A1 EP 1054424A1 EP 00110341 A EP00110341 A EP 00110341A EP 00110341 A EP00110341 A EP 00110341A EP 1054424 A1 EP1054424 A1 EP 1054424A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- electrical
- electrical device
- circuit breaker
- kinematic
- contact
- 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
Links
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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
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/46—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts
- H01H71/462—Automatic release mechanisms with or without manual release having means for operating auxiliary contacts additional to the main contacts housed in a separate casing, juxtaposed to and having the same general contour as the main casing
-
- 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
Definitions
- the present invention relates to a modular auxiliary electrical device, particularly for electrical circuit breakers and the like.
- Auxiliary devices can be associated with an electrical device, such as a magnetothermal and residual-current circuit breaker, in order to electrically and visually indicate the position of the contacts, when used as an auxiliary contact, or to indicate that the circuit breaker has intervened due to an overload or short-circuit, when used as a tripped-relay contact.
- an electrical device such as a magnetothermal and residual-current circuit breaker
- magnetothermal electric circuit breakers use kinematic systems which allow to open and close the moving contact both by operating an external lever which can be accessed by the user and by way of the automatic intervention of the internally provided protection devices.
- Another fundamental problem is to improve the performance of the devices while maintaining compact dimensions which in any case comply with the standards.
- the aim of the present invention is to provide a modular auxiliary electrical device with improved constructive and operating characteristics with respect to the devices of the prior art.
- An object of the invention is to provide a modular auxiliary electrical device which can be manufactured more cheaply than conventional ones and at the same time has an improved performance.
- Another object of the present invention is to provide a modular auxiliary electrical device which is more reliable in use.
- Another object of the present invention is to provide a modular auxiliary electrical device which can be installed easily and rapidly and in particular without the aid of external locking devices such as hooks, U-bolts or the like.
- a modular auxiliary electrical device particularly for electrical circuit breakers and the like, which comprises a box-like body which is adapted to be associated with an electrical device, such as a circuit breaker, and comprises an electrical connection means for connection to conducting components, the electrical connection means being actuated by a kinematic means in response to an intervention of the electrical device; characterized in that it comprises a snap-acting means for quick engagement with the electrical device.
- the modular auxiliary electrical device generally designated by the reference numeral 1, comprises a box-like body 3 which comprises an electrical contact means, constituted by contact terminals, respectively 5, 7 and 9, which in turn are respectively electrically connected to respective upper, lower and central contacts 15, 11 and 13.
- a moving contact 17 is movable between at least two positions, between the fixed upper contact 15 and, alternately, between the lower fixed contact 11, in order to connect them alternately to the central fixed contact 13.
- the moving contact 17 oscillates thanks to the action of, and in contrast with, a moving contact spring 19 and an actuation lever 21 which is provided with a pivot 23 in its fulcrum.
- the actuation lever 21 is connected to an actuation lever return spring 223 and has an arm which is connected, by means of a slot 25, to a slider 27 which is adapted to act on an indicator 29 which also acts as a function selector for the device.
- the indicator/selector 29 is provided with a slot 31 which can be accessed, through the opening 33 of the box-like body 3, for example by means of a screwdriver, in order to move the position of the indicator/selector so as to select the function of the device between the auxiliary contact mode, shown in Figures 5 and 6, and the tripped relay contact mode, shown in Figures 7-16.
- Selection occurs by sliding the indicator/selector 29, which acts on the function hook 35, which is in turn adapted to engage or not engage the slider 27.
- the slider 27 is kinematically associated with a lever crossbar 37, which is in turn associated with the lever 39 (shown only schematically in its pivoting portion).
- test button 41 is connected to a test button crossbar 43 which in turn acts on a tripped-mode linkage 47.
- the test button 41 can be actuated in contrast with a button spring 45, which is adapted to also act on the hook 35, pushing it into the position for engaging the slider 27.
- the tripped-mode linkage 47 is kinematically connected to an intermediate engagement member 49 which in turn engages the slider 27 and is controlled by a spring 51 of the intermediate engagement member.
- the tripped-mode linkage 47 has, on the side that faces the circuit breaker 55 with which the auxiliary device is associable, a pivot 53 for actuation and connection to an adjacent electrical device.
- the actuation lever 37 also has, on the same side, a lever pivot 57 which is adapted to engage a corresponding seat in the lever of the circuit breaker or other associated device.
- the lever 39 comprises a lever seat 59 which is adapted to receive a lever pivot of an adjacent device.
- the device 1 comprises a system for quick engagement with the adjacent devices.
- the engagement system is provided with a plurality of elastic pivots 61, four in the illustrated case, which are adapted to be inserted with a snap action in corresponding seats 63 formed on the adjacent side of the device to be associated.
- the device 1 comprises, on the opposite side, seats 63 for receiving a second auxiliary device 101, as shown in Figures 17-19.
- the modular auxiliary electrical device 1 can be associated with a magnetothermal and residual-current circuit breaker in order to electrically and visually indicate the position of the contacts, when acting as an auxiliary contact, or to indicate that the circuit breaker has intervened due to overload or short-circuit, when acting as a tripped-relay contact.
- the two normally-open and normally-closed contacts are connected to the respective terminals, capable of clamping cables of various sizes, in a per se known manner.
- the contacts actuated by the actuation lever 21, assume the open or closed position depending on the position of the contacts or on the intervention of the associated circuit breaker.
- the indicator/selector 29 and the test button 41 are visible at the front (in an upward region in the figures).
- the indicator/selector allows to select the type of function of the device, i.e., auxiliary contact or tripped-relay contact; at the same time, the indicator/selector 29 visually indicates, when acting as a tripped-relay contact, that the associated circuit breaker has intervened.
- the test button allows to check that the configurable auxiliary contact has been installed correctly and correctly operates over time.
- the pivot 57 of the operating lever, the pivot 53 of the tripped-mode linkage and the quick engagement system constituted by the pins 61 are arranged laterally (on the side meant to face the circuit breaker).
- the seat 59 for the pivot 57 of the operating lever is visible on the other side, which can be arranged laterally adjacent to another auxiliary device (configurable auxiliary contact, release coils).
- the mechanical coupling of the device to a circuit breaker, or to a similar device occurs as mentioned thanks to an engagement system which comprises the four elastic pins 61, which rigidly couple it to the latter.
- the particular geometry of the pins 61 allows easy mutual centering of the devices and straightforward assembly.
- the device according to the present invention does not require the use of external additional fixing components and provides the coupling and engagement system directly as part of the plastic shells.
- the operating lever 39 of the device moves the slider 27 and the actuation lever 21 of the moving contact into the so-called "1" position.
- the contacts switch as shown in Figures 5 and 6; the normally-open contact closes and the normally-closed contact opens.
- the opening movement of the lever of the circuit breaker (from 1 to 0) or the possible intervention of the circuit breaker restores the preceding situation, i.e., the closure of the normally-closed contact and the opening of the normally-open contact (the moving contact has assumed the 0 position), as shown in Figures 7 and 8.
- the device according to the present invention differs from similar devices of the prior art in the following particularities.
- the quick engagement system The quick engagement system.
- the independent release force a plurality of devices can in fact be coupled with the above-described system without applying all the release forces of the kinematic chain to the kinematic system of the automatic circuit breaker. This is achieved thanks to a transmission linkage 65 which, being rigidly coupled to the slider 27, strikes the pivot of the tripped-mode linkage 47 ( Figures 11 and 12) of the optional laterally adjacent accessory.
- the selection/indication system is integrated, and for example by means of a screwdriver it is possible to switch the indicator/selector 29 in the indicator opening from the auxiliary-contact function to the tripped relay-contact function by acting in the slot 31.
- the downward movement of the selector (from left to right with reference to Figure 3) in the auxiliary-contact function fixes the indicator/selector 29 to the base, moves the hook 35 away from the slider 27 and links the movement of the latter exclusively to the crosspiece of the operating lever.
- the upward movement of the selector (from left to right relative to Figures 9-16) in the tripped relay-contact function fixes the indicator/selector 29 to the slider 27 and releases the hook linkage which, pushed by the spring (hook/test button spring), locks the slider.
- the slider can be disengaged from the hook lever only by the movement that the intermediate engagement member receives from the tripped-mode linkage.
- the tripped-mode linkage is turned and the indicator/selector, rigidly coupled to the slider, is moved into the tripped relay-contact position.
- the materials used, as well as the dimensions, may of course be any according to requirements and to the state of the art.
Landscapes
- Breakers (AREA)
- Coupling Device And Connection With Printed Circuit (AREA)
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ITMI991072 | 1999-05-17 | ||
ITMI991072 IT1312448B1 (it) | 1999-05-17 | 1999-05-17 | Dispositivo elettrico ausiliario modulare,particolarmente perinterruttori elettrici e simili |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1054424A1 true EP1054424A1 (fr) | 2000-11-22 |
EP1054424B1 EP1054424B1 (fr) | 2007-04-11 |
Family
ID=11382975
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP20000110341 Expired - Lifetime EP1054424B1 (fr) | 1999-05-17 | 2000-05-15 | Appareil électrique modulaire auxiliaire, notamment pour un disjoncteur ou similaire |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP1054424B1 (fr) |
DE (1) | DE60034266D1 (fr) |
IT (1) | IT1312448B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022255934A1 (fr) * | 2021-06-02 | 2022-12-08 | Schneider Electric Asia Pte Ltd | Émetteur sans fil |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7900929U1 (de) * | 1979-01-15 | 1980-06-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltgerät, dessen Gehäuse mit Hilfe von Schnappbefestigungs- oder Kiemmitteln mit einem Zusatzgerät verbunden ist |
EP0081805A2 (fr) * | 1981-12-12 | 1983-06-22 | Licentia Patent-Verwaltungs-GmbH | Agencement de contact pour un interrupteur automatique |
DE9114742U1 (de) * | 1991-11-27 | 1992-02-06 | Moeller GmbH, 53115 Bonn | Einrichtung zum lösbaren Befestigen modulartiger Gehäuse von Hilfsschaltern und/oder elektrischen Schaltgeräten |
EP0717426A1 (fr) * | 1994-12-16 | 1996-06-19 | Bticino S.P.A. | Dispositif modulaire auxiliaire pour disjoncteurs modulaires |
-
1999
- 1999-05-17 IT ITMI991072 patent/IT1312448B1/it active
-
2000
- 2000-05-15 DE DE60034266T patent/DE60034266D1/de not_active Expired - Lifetime
- 2000-05-15 EP EP20000110341 patent/EP1054424B1/fr not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7900929U1 (de) * | 1979-01-15 | 1980-06-19 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Schaltgerät, dessen Gehäuse mit Hilfe von Schnappbefestigungs- oder Kiemmitteln mit einem Zusatzgerät verbunden ist |
EP0081805A2 (fr) * | 1981-12-12 | 1983-06-22 | Licentia Patent-Verwaltungs-GmbH | Agencement de contact pour un interrupteur automatique |
DE9114742U1 (de) * | 1991-11-27 | 1992-02-06 | Moeller GmbH, 53115 Bonn | Einrichtung zum lösbaren Befestigen modulartiger Gehäuse von Hilfsschaltern und/oder elektrischen Schaltgeräten |
EP0717426A1 (fr) * | 1994-12-16 | 1996-06-19 | Bticino S.P.A. | Dispositif modulaire auxiliaire pour disjoncteurs modulaires |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2022255934A1 (fr) * | 2021-06-02 | 2022-12-08 | Schneider Electric Asia Pte Ltd | Émetteur sans fil |
Also Published As
Publication number | Publication date |
---|---|
DE60034266D1 (de) | 2007-05-24 |
EP1054424B1 (fr) | 2007-04-11 |
IT1312448B1 (it) | 2002-04-17 |
ITMI991072A1 (it) | 2000-11-17 |
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