EP0956575B1 - Power breaker switching an electric circuit - Google Patents

Description

The invention relates to a circuit breaker for switching electrical circuits in which the by moving one Rocker, a rocker arm or a rotary toggle attached Force via a key switch to a moving circuit switching contact is transferable.

Circuit breakers are used to switch different Switching capacities manufactured in different sizes. Out physical-technical or manufacturing-related reasons depends on the overall structure of such a circuit breaker, for example the location of the key switch or various Triggers, essentially depending on the maximum switching capacity. Furthermore, depending on the customer's request, the planned Application and type of actuation (manual or remote control, actuation via rockers, rocker arms or rotary knobs) the switch as centrally as possible on a control surface respectively.

In order to compensate for the different sizes, it is proposed different switch locks with their own, specially coordinated actuators use. This has the disadvantage that these special switch locks are very expensive.

DE 36 06 508 C2 discloses a switching mechanism for a electrical installation device for optional use as Pushbutton switches, pushbuttons, rocker switches or rocker switches using a link-shaped flip-flop for actuating a Contact spring that can be moved in two switching positions. The Tilting member is in operative connection with a plunger Actuator that the plunger with each actuation hits a backdrop surface and then a pivoting movement of the flip-flop in its opposite position he follows. An actuator is assigned to the switching mechanism, the rocker member with both the contact spring as also with the in the switch housing between the flip-flop and the freely movable end of the contact spring is rotatably arranged Actuator interacts. The switching mechanism can be with the help of the actuator either switch so that this can be used either as a switch or as a button. With this switching mechanism, however, no different Compensate sizes of circuit breakers.

From the G 90 01 424.3 U1 is an electrical circuit breaker known of a tiltable or sledge-like adjustable operating button for optional operation has two movable contacts. This is between one Starting position, the open position of the two movable Contacts compared to the fixed contacts, and two consecutive positions that the Closing one or both movable contacts with the fixed contacts are assigned, movable back and forth. The contact is a cooperating with the actuation button elastic locking device for determining the positions assigned to the control button, the elastic Locking element is formed by an elastic tongue, which are connected to a carrier for the fixed contacts is. The known breaker switch has different Actuators on; however, it can also no different sizes of circuit breakers compensate.

From DE-A-2901246 is a circuit breaker with the features of the preamble of claim 1 known.

The invention has for its object a circuit breaker of the type mentioned at the outset so that the expensive versions of different switch locks be avoided.

This object is achieved with the features of claim 1.

To the engagement of a counter wheel and thus positive To enable connected gag is another Training of the invention provided that the seesaw against a tooth rocker is interchangeable. Furthermore, the seesaw is against a toothed rocker with counter wheel and rotary knob can be exchanged.

To compensate for the different installation positions, is after another development of the invention between the rocker and the counter wheel insertable a drive shaft.

The advantages achieved with the invention are in particular in the fact that expensive custom-made products differ Switch locks are avoided, and that one for different large circuit breakers suitable, cheaper to manufacture Basic equipment can be used in larger numbers.

FIG 1

eine schematische Darstellung dreier verschieden großer Leistungsschalter,

FIG 2

eine schematische Darstellung der Bedienflächen dreier verschieden großer Leistungsschalter,

FIG 3

eine perspektivische Darstellung eines Schaltschlosses mit einer Wippe,

FIG 4

eine perspektivische Darstellung eines Schaltschlosses mit einer Zahnwippe,

FIG 5

eine perspektivische Darstellung eines Schaltschlosses mit einer Zahnwippe, einem Gegenrad und einem Drehknebel,

FIG 6

eine perspektivische Darstellung eines Schaltschlosses mit einer Zahnwippe und einer Antriebswelle und

FIG 7

eine perspektivische Darstellung eines Schaltschlosses mit einer Zahnwippe, einer Antriebswelle, einem Gegenrad und einem Drehknebel.

Several embodiments of the invention are shown in the drawing and are described in more detail below. Show it:

FIG. 1

a schematic representation of three circuit breakers of different sizes,

FIG 2

a schematic representation of the control surfaces of three different sized circuit breakers,

FIG 3

a perspective view of a key switch with a rocker,

FIG 4

a perspective view of a key switch with a tooth rocker,

FIG 5

1 shows a perspective view of a key switch with a tooth rocker, a counter wheel and a rotary toggle,

FIG 6

a perspective view of a key switch with a tooth rocker and a drive shaft and

FIG 7

a perspective view of a key switch with a tooth rocker, a drive shaft, a counter wheel and a rotary knob.

1 shows a schematic representation of three different large circuit breakers with different triggers 7, 8 for short circuit and for overload, whereby between one Switch lock 1 with the same basic equipment and an actuator, namely a rocker 2 or one Rotary knob 4, either no or different individual components, like a tooth rocker 3 with a counter wheel 5 or one Drive shaft 6 are inserted with a counter wheel 5.

2 shows the control surfaces in a schematic representation three different sized circuit breakers, whereby the smallest version with a rocker or a rocker arm 2 works as an actuator, while for the two larger versions a rotary knob suitable for larger forces 4 is present.

The switch lock shown in Figures 3 to 7 has always the same basic equipment. This consists in essentially of two arranged parallel to one another Housing-forming boards 9, 10, between which except one Torsion spring 16, a lock 17 and other items two the plates 9, 10 connecting bolts 11, 12 run on which a pawl lever 14 and a shift lever 15 rotatably mounted are.

Another bolt 13 also serves in FIGS. 3 to 7 as a pivot bearing, but for different individual components, namely in FIG 3 for a rocker or a rocker arm 2 and in 4 to 7 for a tooth rocker 3, which in FIG a counter wheel 5 is coupled to a rotary knob 4. 6 the bolt 13 serves as a bearing for a rocker 3 and for a drive shaft 6 coupled to this, while in FIG. 7 In addition, a counter wheel 5 and a rotary knob 4 are arranged are.

Claims (4)

1. Power circuit-breaker for switching electric circuits, in which the force applied by moving an actuator can be transferred via a breaker mechanism (1) to a movable contact piece which switches the circuit and in which the breaker mechanism (1) has the same basic design for different sizes of power circuit-breakers, characterised in that the same basic design for different sizes consists of the complete breaker mechanism (1), which essentially comprises two boards (9, 10) arranged in parallel to one another, between which is arranged a pivot bearing (13) for the actuator which is selectable as a function of the size, namely a rocker, a toggle (2) or a toothed rocker (3).
2. Power circuit-breaker according to Claim 1, in which a toothed rocker (3) is employed as an actuator, characterised in that the toothed rocker (3) is connected to a rotary toggle switch (4) by a mating gear (5).
3. Power circuit-breaker according to Claim 2, characterised in that a drive shaft (6) pivoted on the other bolt (13) is inserted between the toothed rocker (3) and the mating gear (5).
4. Power circuit-breaker according to one of Claims 1 to 3, characterised in that the breaker mechanism (1) can optionally be connected to different sizes of trip elements (7, 8) for short-circuit and overload.

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