DE1161626B - Time switch protected from dripping water - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

EDITORIAL

Boarding school Class: H 02 c

German classes: 21c -44

Number: 1161 626

File number: B 59906 VIIId / 21c

Filing date: October 28, 1960

Opened on: January 23, 1964

The invention relates to a drip-proof time switch for use in household appliances, such as washing machines, dishwashers, etc.

In previously known timer designs, the drip protection is achieved in that the Switch built either in an unencapsulated design in a drip-proof room of the household appliances or the switches, which are not encapsulated in their basic version, are encapsulated in a special housing became. In the first embodiment, the disadvantage is that the time switches only in household appliances can be accommodated with a drip-proof installation space, and the second Embodiment in the complexity caused by the additional housing encapsulation.

In the case of a well-known moisture-proof, outdoors on a vertical housing wall or junction and junction box for electrical cables to be attached to a mast is a terminal strip made of insulating material in a two-part encapsulated against the effects of water Housing used, the one on the end wall containing the cable entries, the cable entries sealing stopper comprehensive drip edge is formed. This is in addition to the normal housing encapsulation outside of this a special drip edge provided by the prevents moisture from penetrating the cable entries that are already sealed shall be. This makes the encapsulation even more complex.

These disadvantages are eliminated by the invention. It consists in that enclosing the switch room or insulating bodies carrying the drive element, protective walls in the form of prismatic ones Hollow bodies, the inner surfaces of which are conical in the direction of the open end, to protect the connection space and the drive element are integrally formed, the prismatic Hollow bodies are open to the outside.

As a result, a horizontal installation with the simplest means and the least effort is a reliable one Drip water protection for the rooms built into the rooms enclosed by the protective walls Contacts and the drive element reached. The condensation water that may form in these rooms is made by the inner walls which taper towards the open end of the protective walls well derived.

The protective walls are useful as a carrier for the contacts and for fastening the drip-proof device Time switch

Applicant:

Busch-Jaeger Dürener Metallwerke

Aktiengesellschaft, Lüdenscheid

Named as inventor:
Johannes Schmale, Lüdenscheid

Drive element serving insulating plate formed.

Another embodiment provides for the protective walls on one that covers the switch room from the outside To form insulating material plate. A third embodiment is that the Protective wall for the drive element on the as a carrier for the contacts and for fastening the drive element Serving insulating material plate and the protective wall for the connection space on the insulating material plate covering the switch space towards the outside is molded.

If the time switch is installed vertically, the opening in the protective wall for the connection area is also included a cap preferably made of plastic material. Still owns either the protective wall or the cover cap has a lateral entry opening for the connecting cables, which by one of the cap above the insertion opening molded tabs against Ingress of dripping water is protected.

Some exemplary embodiments according to the invention are shown in the drawing. It shows

Fig. 1 is a longitudinal section through a time switch, in which the protective walls as a carrier for the contacts and for the fastening of the drive element serving insulating material plate are formed, FIG. 2 is a plan view according to FIG. 1,

Fig. 3 is a longitudinal section through a timer, in which the protective walls on one of the Switch room to the outside covering insulating plate are formed.

Fig. 4 is a longitudinal section through a time switch, in which the protective wall for the drive element on the as a carrier for the contacts and for Attachment of the drive element serving insulating plate and the protective wall for the terminal compartment

is formed on the insulating plate that covers the switch room from the outside (the timer has a cover cap),

309 780/241

5 shows the side view of a time switch provided with a cover cap with a connecting cable. According to FIG. 1, the time switch has an insulating body 1 designed as a plate, which on the one hand carries the drive element 2 designed as a synchronous motor and on the other hand the contact means 3 α, 2> b and closes off the switching room 4 on one side. On the other hand, the switching room 4 is closed off by the insulating material plate 5 penetrated by the connection ends 3 c of the fixed contacts 3 a. The fixed contacts 3 α for the supply line connection penetrate with a second connection tab 3 d the insulating body 1 for the purpose of the supply line connection for the synchronous motor 2. For drip protection of the connection space 6 and the space 7 intended for accommodating the synchronous motor, walls la, Ib are used as prismatic hollow bodies , which are formed on the insulating body 1. From the contact space 4, the walls la, Ib are tapered towards the outside, ao in that the inner surfaces lc, Id run conically, so that especially in the case of horizontal assembly, for which the time switch designed in this way is ready to be installed when the drip protection is required, it is located inside the rooms 6 and 7 forming drip water can flow out to the outside. To fasten the timer, tabs 1 / are formed on the protective wall 1 d provided with holes Ie.

The time switch according to Fig. 3 differs from the embodiment just described in that that the protective walls 10 α, 106 of the control room 11 outwardly covering insulating material plate 10 are formed. All other design features are carried out in this version as already described.

In the embodiment of Fig. 4, the protective wall 20 α for the terminal space 21 of the switch room 22 to the outside closing insulating plate 20 is formed, while the protective wall 23 α for the drive element 24 with the as a carrier for the contacts 25 a, 25 b and for Attachment of the drive element 24 serving insulating plate 23 consists of one piece. In addition, a protective cap 26, which is preferably made of thermoplastic material and is used for vertical switch installation, is provided, which covers the protective wall 20 a with its edge 26 a. This cap can of course also be used in the switch constructions described above. A recess 31 (see FIG. 5) which is arranged in the protective wall for the connection space and which is protected against the ingress of dripping water by a tab 32a formed on the protective cap 32 serves to introduce the connecting cable 30.

Claims (5)

Patent claims: 1. Drip-proof time switch for use in household appliances such as washing machines, dishwashers and the like. 20, 23) protective walls (la, Ib, 10a, 10 b, 20 a, 23 a) in the form of prismatic hollow bodies, the inner surfaces (lc, Id) of which are conical in the direction of the open end, to protect the connection space (6, 21) and the drive element are integrally formed, the prismatic hollow bodies being open to the outside for horizontal installation. 2. Drip-proof time switch according to claim 1, characterized in that the protective walls (la, Ib) as a carrier for the contacts (3 α) and for fastening the drive element (2) serving insulating plate (1) are formed. 3. A drip-proof time switch according to claim 1, characterized in that the protective walls (10 a, 10 b) are integrally formed on an insulating material plate (10) which covers the switch room (11) towards the outside. 4. Drip-proof timer according to claim 1, characterized in that the protective wall (23 a) for the drive element (24) on the insulating material plate (23) and serving as a carrier for the contacts (25a, 2Sb) and for fastening the drive element (24) the protective wall (20 a) for the connection space (21) is integrally formed on the insulating material plate (20) which covers the switching space (22) towards the outside. 5. Drip-proof time switch according to claim 1 to 4, characterized in that the opening of the protective wall (1 a, 10 a, 20 a) for the connection space (6, 21) is covered with a cap (26) preferably made of plastic material when installed vertically is that the protective wall (la, 10a, 20a) or the cover cap (26) has a lateral insertion opening (31) for the connecting lines (30), which is protected by a tab (32a) formed on the cap above the insertion opening Dripping water is protected. Documents considered: German Auslegeschrift No. 1 095 913; German utility model No. 1 786 843, 086, 1 803 190. 1 sheet of drawings 309 780/241 1.64 © Bundesdruckerei Berlin