DE8027246U1 - Overcurrent protection switch - Google Patents

Description

Overcurrent protection switch

The invention relates to an overcurrent protection switch the features characterized in more detail in the preamble of claim 1. Such an overcurrent protection switch is e.g. from DE-PS 21 32 738 known. Such overcurrent protection switches can usually be switched manually from the outside and with a Release provided. Trip-free means that the switch can be operated even when the manual control device is held triggers automatically under overcurrent. Overcurrent tripping can occur so cannot be disabled manually.

There are single-pole overcurrent circuit breakers in narrow design with thermal and / or electromagnetic tripping known, to those for the accommodation of help desks Switching of control and monitoring circuits an additional housing is flanged. The help switch drive is then mechanically connected to the switch mechanism via a coupling. This construction enlarges takes up space and increases costs. In the case of a multi-pole design of such switches by coupling single-pole ones

Devices, however, is the additional attachment of additional auxiliary switches not possible. This proves to be disadvantageous in the diverse control tasks in industry.

The invention is based on the object of an overcurrent protection switch of the type mentioned in the simplest and most reliable way possible with an auxiliary switch to be provided for switching at least one control and / or monitoring circuit. This task will solved by the characterizing part of claim 1.

This solution only requires at least one guide recess for the slide to be molded onto the two Housing halves which are separated from one another in a parting plane running parallel to the housing center plane. Such guide recesses can easily be molded in during the manufacture of the injection molds for the housing halves It does not matter whether an auxiliary switch is to be built into the switch according to the invention or not. the The solution according to the invention has the further advantage that the auxiliary switch is only from the contact arm, so also with a Trip-free is actuated. The connections of the auxiliary switch circuit can easily be operated from the outside even with a plurality of circuit breakers lined up in a row.

Il »I
dd I

Through the teaching of claim 2, it is possible in a simple manner without significant additional effort, two auxiliary switches to switch.

The characteristic of claim 4 favors a space-saving arrangement of the auxiliary switches and their actuating device, especially since, as a rule, the contact arm is not directly but via a pivoting and locking transmission linkage acts on the contact arm.

The object of the invention is based on an overcurrent circuit breaker shown for example in the figures explained in more detail. Show it:

1 shows a perspective external view of a switch designed according to the invention.

FIG. 2 shows a vertical section through the switch according to FIG. 1 in the closed position of the contact arm.

FIG. 3 shows a vertical section analogous to FIG. 2, but in the open position of the contact arm.

4 shows a representation corresponding to FIG. 3, but with the manual operating lever held in the contact closed position, whereby the switch position "trip-free" is indicated.

The housing 1 is made of molded insulating material. It is of flat design, as is customary with switches, which are lined up to several on their flat sides in Switchgear are used. The housing 1 is composed of two housing halves not shown in detail, the parting plane between the two housing halves in the or runs parallel to the plane of the drawing of FIGS. 2-4.

Within the housing 1, the contact arm 2 is via a toggle switch lock 3 by a rocker arm 5 protruding from the housing 1 with its actuating end 4 from the contact closed position can be transferred into the contact opening position and vice versa. The contact arm 2 is fixed to the housing Axis 6 is pivotably mounted within housing 1. The contact end 7 of the contact arm 2 interacts with the fixed contact 8 together, the connection θ of which opens into a narrow housing wall 10.

A slide 11 is mounted within the housing 1 in the pivot plane of the contact arm 2 so as to be longitudinally displaceable. At its two ends 12, 13 the slide 11 carries a contact bridge extending at right angles to the housing center plane 14 or 15. The contact bridge 14 or 15 or their contact ends 16 act with two on both sides the housing center plane in a narrow housing wall 10 next to

* r

• it · · · ·

ι 4 - r · ■ ι

fixed contacts 17 and 18 of a control or monitoring circuit together. The slider 11 is under the pressure of a spring 10 acting in the longitudinal direction of the slide with an actuating arm 20 on a projection 21 of the contact arm 2. The contact arm 2 can also be designed as a two-armed lever, the projection 21 forms one of the two lever arms. By pivoting the contact arm 2 in an anti-clockwise direction the actuating arm 20 of the slide 11 is applied. Of the The slide 11 is thereby shifted to the left against the pressure of the spring 19, the contact end 16 of the contact bridge 14 to the fixed contacts lying next to one another in the narrow housing wall 10 on both sides of the housing center plane 18 sets and short-circuits them together, while the contact end 16 of the contact bridge 15 of the two fixed contacts 17 is lifted and interrupts the circuit in which both fixed contacts 17 are located.

In Fig. 2-4 is of the two fixed contacts 17 and 18, respectively, lying next to one another in a narrow housing wall only one recognizable at a time. The juxtaposition of the two fixed contacts 18 in each case can, however, be seen most clearly in FIG. 1 can be recognized where in the relevant housing wall 10 the two adjacent insertion openings 22 to the actuated by screws 23, based

friction-free connections can be seen in the housing wall are embedded and are directly connected to a fixed contact 18 in each case.

The slide 11 measures the space between two opposing narrow housing walls 10. It is - Like the housing 1 - made of an insulating material. It lies between the pivotable axis 25 that is fixed to the housing Rocker arm 5 and the contact arm 2 next to the toggle switch lock 3, the two lever arms of which are denoted by 26 and 27.

If the contact arm 2 - be it by pivoting the rocker arm 5 (Fig. 3) or by releasing it (Fig. 4) -, so the actuating arm 20 comes free from the projection 21 of the contact arm 2. The slide 11 is under the restoring force the spring 19 is shifted to the right, so that the contact bridge 15 connected to it is assigned to it Fixed contacts 17 short-circuited with one another, while the contact bridge 14 between the two fixed contacts 18 the local one Open circuit.

^J osition number list List of reference numbers

TERGAU & POHL

'Ö5Öb

. 3: ¹ Pi) SiR. «347 J '" 11

customer
Customer AWe flriR9n
case 80520 Name / Designation Item AppSSomi Ellenberger & Poensgen Naming / designation Sonderposltlonen / Special I. Ropes 1 of Item casing 51 oacte 1 of -1 Contact poor 52 2 Toggle switch lock 53 ^ 3_ End of actuation 54 4th rocker arm 55 5 axis 56 6th End of contact 57 7th Fixed contact 58 8th Connection 59 9 Narrow housing wall 60 10 Slider 61 11th end 62 12th end 63 13th Contact bridge 64 14th Contact bridge 65 15th End of contact 66 16 Fixed contact 67 17th Fixed contact 68 18th feather 69 19th Actuator 70 20th Precaution 71 21 Introductory opening 72 22nd Screws 73 23 74 24 axis 75 25th Lever arm 76 26th Lever arm 77 27 78 28 79 29 80 30th 81 31 82 32 83 33 84 34 85 35 86 36 87 37 88 38 89 39 90 40 91 41 92 42 93 43 94 44 95 45 96 46 97 47 98 48 99 49 200 50

Claims (5)

Ellenberger & Poensgen GmbH, 6503 Altdorf Claims: 1.) Overcurrent protection switch flat design with electrical and / or electromagnetic release with one in the housing center plane or parallel to it around a fixed housing Axis pivotably mounted, in particular operated by a switch lock contact arm and the following Mark: 1. Inside the insulating housing (1) is in the Pivoting plane of the contact arm (2) mounted a slide (11) so that it can be moved longitudinally, 1.1 at one end (12, 13) a contact bridge extending at right angles to the housing center plane (14,15) carries. 2. The contact bridge (14, 15) acts with two on both sides of the housing center plane in a narrow housing wall (10) adjacent fixed contacts (17, 18) of a control or monitoring circuit together. F · f · 3. The slide (11) is under the pressure of a spring (19) with a spring acting in the longitudinal direction of the slide Actuating arm (20) on a projection (21) of the contact arm (2) in such a way 2.1 that with an opening or closing movement of the contact arm (2) the contact bridge (14,15) by moving the actuating arm (20) or by the restoring force exerted by the spring (19) is transferable in contact closing or contact opening direction. 2.) Overcurrent protection switch according to claim 1, characterized, that the slide (11) clears the space between two opposing narrow housing walls (10) through measures and at both ends a contact bridge (14,15) and that both narrow housing walls (10) with one each with a contact bridge (14,15) cooperating fixed contact pair (14,18) are provided. 3.) Overcurrent protection switch according to claim 1 or 2, characterized, that the slide (11) is made of an insulating material. 4.) Uberetromschutzschalter after one or more of the preceding claims, whose contact arm (2) can be operated manually from the outside, characterized, that the slide (11) between the manual control device (Rocker arm 5) and the contact arm (2) is arranged and next to the movement transmission members between the manual control device and the contact arm (2). 5.) Overcurrent protection switch according to claim 1 or 2, characterized, that each fixed contact (17, 18) is arranged within the associated narrow housing wall (10) and is safe to touch Connection is assigned. '«« Il I I) ¹ · t »III > It *