CN1291339A

CN1291339A - Executive element for producing switch connection between main switch and auxiliary switch

Info

Publication number: CN1291339A
Application number: CN99803239.5A
Authority: CN
Inventors: R·D·保尔
Original assignee: AEG Niederspannungstechnik GmbH and Co KG
Current assignee: AEG Niederspannungstechnik GmbH and Co KG
Priority date: 1998-12-23
Filing date: 1999-12-22
Publication date: 2001-04-11
Also published as: WO2000039826A1; EP1058936A1; PL342425A1; HUP0101058A2; JP2002533897A; DE19860042A1; TW464892B; HUP0101058A3; AU2538600A

Abstract

The invention relates to an actuating element (3) for producing a switching connection between a drive element (5) of a main switch (1) and an actuator (6) of an auxiliary switch (2). This arrangement enables a movement of the drive element (5) to put the actuator (6) in a particular switching state by means of the actuating element (3). According to the invention, the actuating element (3) can be clamped in order to help restore the actuator (6) to its original switching state and ensure that said actuator (6) is easily restored from the particular switching state to the original switching state.

Description

Specification produces the actuation element that switch connects between main switch and auxiliary switch

The present invention relates between main switch and auxiliary switch, produce the actuation element that circuit connects.This actuation element is particularly suitable for forming between the actuator of the driving element of main switch and sensitive switch and can be operatively connected.

Auxiliary switch is usually as the auxiliary equipment of low tension switch, and can for example carry out control, indication or interlock function.They usually the switch in shared shell be plugged on so that prevent excessive dust and other pollutant or moisture.

The actuation element of the above-mentioned type is widely known to the people.Even under disadvantageous operating condition, promptly owing to the dust or the deposit of arc generation, they should be able to provide splendid mobility and function constantly, and should be easy to make and install.

The purpose of this invention is to provide a kind of actuation element that circuit connects that between main switch and auxiliary switch, produces, reliable to guarantee the circuit linkage function.

And the present invention is desirable to provide a kind of actuation element, and it makes simple, and can easily be installed in the structure of main switch/auxiliary switch.

This purpose is realized by the characteristic of claim 1.The present invention is carried out advantageously further limiting by dependent claims determining.

Describe the present invention in detail below with reference to accompanying drawing and by a typical embodiment.In the accompanying drawing:

Fig. 1 is the fragmentary sectional view that actuation element is in the switch of the main switch/auxiliary switch structure under first on off state;

Fig. 2 is the main switch shown in Figure 1/auxiliary switch structure that is under the second switch state;

Fig. 3 is the perspective view according to actuation element of the present invention; With

Fig. 4 is the perspective view of the main switch that is equipped with the actuation element of Fig. 3/auxiliary switch structure.

As shown in Figure 1, the actuation element 3 that produces the circuit connection between main switch 1 and auxiliary switch 2 is put in the switching device, for example a circuit breaker.

Main switch 1 is made up of a contact device, and this contact device is put in a contact device housing or the main switch housing 4, and can be driven by driving element 5.Contact device housing 4 is made up of two and half housing 4a and 4b, and this two and half housing 4a is connected by the spiral shell pallet after the contact device element that belongs to contact device is installed with 4b, and splicing or rivet link together.Main switch 1 and auxiliary switch 2 are contained in two parts of switch case 7 separatedly, and two parts of this switch case 7 are by shell wall 7a, and the 7b branch is opened, and occupies the fixed position relatively.Auxiliary switch 2 is arranged to make switch element or actuator 6 to give prominence to from the downward side of Fig. 1.As shown in Figure 1, actuator keeps and can be operatively connected by the middle intermediation and the driving element 5 of actuation element 3, and is pressed into by the switch motion of driving element, and opposite with the elastic force of integrant actuation spring in the auxiliary switch.Resetting of actuator 6 as shown in Figure 2 realized by the elastic force of the actuation spring of preload.

Actuation element 3 constitutes a global facility, and is made of movable part 3a and lever segment 3b, and this lever segment 3b is substantially perpendicular to movable part 3a and extends.The free end 3e of lever segment 3b is contained in the groove in rotatable mode, and this groove is positioned at contact device housing 4, so movable part 3a can rotation between the actuator 6 of the driving element 5 of main switch 1 and auxiliary switch 2.

The actuation element 3 that constitutes a global facility also has an elastically deformable part 3c who constitutes projection, and this projection can be by rotating up or swing the application of force to withstand stop member 7 among Fig. 1 of actuation element 3, and this stop member 7 is formed by a shell wall 7b.

Usually can see the method for operation of actuation element 3 from Fig. 1 and Fig. 2.Fig. 1 represents the open position of main switch 1, and wherein driving element 5 is at the off position as shown in the figure on top.Driving element 5 is introduced this position by switch pallet applied force, and described switch pallet not only is enough to actuator 6 is pressed in the auxiliary pallet shell, and is enough to apply preload to withstand stop member 7 to elastic part 3c simultaneously.

In order to obtain the make position of main switch shown in Figure 21, driving element 5 then is adjusted to the lower on-position shown in the figure.Therefore like this, discharged the movable part 3a of actuation element 3, under by the actuator 6 effects reset force and the effect of elastic part 3c additional tension thereon, movable part 3a is rotated counterclockwise.

The following fact is considered in design according to the present invention, and it is contaminated especially easily promptly to produce the actuation element that can be operatively connected between main switch and auxiliary switch, and owing to they are arranged in the switch, thereby be easy to generate moving obstacle.Because actuation element adopts the lever form, therefore design of the present invention has at first solved this problem.Apply reset force by actuator 6,, therefore,, promptly in the groove that in contact device housing 4, forms, produce dyskinetic problem and be easy to solve owing to pollute at supporting point so that reach the position of the switch of auxiliary switch 2 shown in Figure 2.

And, reaching under the on off state shown in Figure 1, the switching force that is applied on the actuation element 3 by driving element 5 might be stored in the elastic part 3c, with as additional reset force, can be used to help actuation lever 3 to return to the position of the switch shown in Figure 2 subsequently.Because this measure even work as the outside that actuation element is arranged in contact device housing 4, can guarantee that also it possesses the height reliable functioning.

Fig. 3 represents to form a certain embodiments of the actuation lever of injection-moulded plastic parts.The injection-moulded plastic parts are U-shaped basically and have two supporting leg 3b, can interlock mode combine with corresponding grooves in the contact device housing 4 shown in Figure 4 in the circular enlarged of its end 3e.The part of articles injection-moulded connection supporting leg 3b forms one and drives tongue piece 3d, and this drivings tongue piece 3d forms the movable part 3a of actuation lever with L shaped part 3f, and this L shaped part 3f extends perpendicular to supporting leg 3b direction from one of them edge, end of supporting leg 3b.Projection 3c is arranged in and drives the intracardiac of tongue piece 3d, and with the sheet spring mode one end be connected with actuation lever, this projection 3c is used as elastomeric element.

In main switch shown in Figure 4/auxiliary switch structure, actuation element shown in Figure 3 is installed in the mode that supporting leg 3b at first centers on the shell wall extension of main switch 1, the end 3e buckle of its expansion enters in the groove of shell wall, subsequently, L shaped part 3f reduces downwards in the drawings by rotatablely moving, and, slide in the zone of opening 4d, to hold driving element 5 along the transverse concave groove 4c of contact device housing 4.

As shown in Figure 4, the transverse concave groove 4c with opening 4d not only is positioned at half housing 4a, and is positioned at half housing 4b.Also might use actuation element 3 by this way, this actuation element 3 has movable part 3a in each side that drives tongue piece 3d.It should be noted that at this groove that is used to hold enlarged end 3e is identical with the degree of depth of transverse concave groove 4c, and can be connected with it, so that make half housing simply.The latter is the situation in the present embodiment, wherein not only L shaped part 3f, and also the supporting leg 3b with enlarged end 3e is absorbed in the groove 4c.

The present invention is not limited only to exemplary embodiments shown in the drawings.Actuation element also can have any other form or design, helps actuation lever to return to the position of the switch to guarantee preload.

Claims

1. between main switch (1) and auxiliary switch (2), produce the actuation element that circuit connects, the motion that it is characterized in that the driving element (5) that actuation element (3) can be by main switch (1) loads, this motion forms the specific on off state of auxiliary switch, so that help auxiliary switch to turn back to the initial position of the switch.

2. actuation element as claimed in claim 1 is characterized in that it can be designed to an actuation lever, and the end of this actuation lever (3e) can be connected on the main switch housing (4) by rotation mode.

3. actuation element as claimed in claim 2 is characterized in that elastic part (3c) loads to withstand fixedly stop member (7) through strain.

4. actuation element as claimed in claim 3, it is characterized in that drive part (3a) can rotation between the driving element (5) of auxiliary switch (2) and actuator (6), and meet at right angles basically by lever segment (3b) and to be connected with movable part, the end of movable part (3e) is bearing in the groove in the main switch housing (4).

5. actuation element as claimed in claim 4 is characterized in that elastic part (3c) forms at an end of movable part (3a), and this movable part (3a) is away from the support end (3e) of lever segment (3b).

6. as claim 4 or 5 described actuation elements, it is characterized in that it is a U-shaped, and two supporting legs (3b) that form lever segment connect by a part, this part adopts a kind of form that belongs to the tongue piece (3d) of movable part (3a), and extend perpendicular to the supporting leg direction from the edge, center of movable part (3a) the L shaped extension (3f) of elastic part (3c) and movable part.

7. actuation element as claimed in claim 6, it is characterized in that it can be installed on the main switch housing (4) as follows, the part that promptly is tongue piece (3d) form contacts with actuator (6), and the end of L shaped extension (3f) contacts with driving element (5).

8. as arbitrary described actuation element in the above-mentioned claim 1 to 7, it is characterized in that it forms injection-moulded plastic parts.