DE3320391A1 - CONNECTION BOX FOR ENGINE COMPRESSORS OF REFRIGERATORS - Google Patents

Description

Junction box for motor compressors of refrigerators

The invention relates to a junction box for motor compressors for refrigerators of the starting relay and the thermal protection relay, as described, for example, in DE-OS 32 30 584 Applicant is described. The starting relay described herein has a positive resistance Temperature coefficient on (PTCR), and this is arranged on the outer wall of the capsule of the motor compressor and has such a shape that a limited height relative to the outer surface of the Capsule is present, and the connecting terminals after the supply line are arranged so that they for a person standing behind the refrigerator exposed

The invention is based on the object of designing the junction box so that it can be used in an expedient manner accommodates a thermal protection relay closely spaced to form an integral assembly of limited dimensions is formed, whereby the two relays do not influence each other thermally and those Advantages are maintained, which are specified in the published patent application cited.

According to the invention this object is achieved in that a box-shaped container on the outer surface the capsule of the motor compressor is attached, and that in this container adjacent to each other the Housing for the starting relay and the thermal protection relay are accommodated by suitable walls

are separated, and that the terminal box of the motor compressor is arranged on a wall of the container is directed towards a person standing behind the refrigerator, the junction box has limited transverse dimensions from the outer vertical wall of the capsule.

Exemplary embodiments of the invention are described below with reference to the drawing. In the drawing demonstrate :

Fig. 1 is a full view of the terminal box for the relay, built on the Engine compressor capsule;

Fig. 2 is a view of the container of the junction box ;

3 shows a section along the line 3-3 according to FIG. 2;

Fig. 4 is an electrical circuit diagram;

Fig. 5

and FIG. 6 corresponding to FIGS. 2 and 3

Views of a modified embodiment of the invention.

In Figure 1, the capsule 10 of the sealed motor compressor is provided, which by means of a plate 12 is supported, which is connected to the capsule and an elastic support 14 which is on the

Bottom 16 of the chamber 18 is supported, which is arranged at the rear in the lower part 20 of the refrigerator.

The junction box is on the side of the capsule 10 of the motor 22 for the starter relay and thermal protection relay, and this box is closed at the front with a cover 24.

This connection box can be connected to the network via lines 26.

The electrical circuit of the motor compressor with thermal protection relay. 28 can be seen in FIG. which comprises a bimetal 30 and a heating resistor 32, the function of which will be described later.

The protective relay 28 is in series with the two windings of the electric motor 34, from. which one the work winding 36 and the other is the start winding 38.

In series with the starting winding 38, the starting valve 40 is of the positive temperature coefficient type (PTCR) switched, and the junction box 22 has an outer container 43 made of plastic material, in which in suitable housings which are divided by walls, the starting relay 40 and the thermal protection relay 28 are arranged. On the outer side wall 42, the connections 44 are arranged, which consist of screw terminals 46 and quick plug connections 48 for connection to the circuit according to FIG. 4 exist. As shown in Fig. and Fig. 1 is the space that is used by the relay

Junction box is taken, along a line perpendicular to the vertical wall of the capsule 10 (dimension H in Fig. 1) is very limited. This will reduce the dimensions of the compressor relay junction box in Cross direction greatly reduced.

Another advantage, as already mentioned, is that the connection box is on an outer wall of the container is arranged, the terminals for the operator behind the lid of FIG exposed so that it is very easy to connect the main connection lines to the terminal box or perform other maintenance work.

In Fig. 5 and 6, another constructive solution is shown. Here is another type of thermal Protective relay 50 is used, which is different from the relay 28 according to FIG.

The thermal protection relay, which is designated by the reference numeral 50 in FIG. 6, is of that type as is commonly used in motor compressors, in contrast to the relay which is shown with the reference numeral 28 in FIG. This is from manufactured by the company "Sylvania" and sold on the market under the name "Glass Housing Protection Relays", and it is provided with a heating coil 32, which increases the current sensitivity of the protective relay and accordingly the cooling time is also extended.

Blank page

Claims (1)

Patent attorneys :: * ;. ·: .J ^: .. ^: * ^: - Dipl.-Ing. Curt Wallac European patent representative Dipl.-Ing. Günther Koc European Patent Attorneys Dipl.-Phys. Dr Tino Haibac Dipl.-Ing. Rainer Peldkami D-8000 Munich 2 Kaufingerstraße 8 Telephone (089) 260 80 78 Telex 5 29 513 wakai June 6, 1983 Date: NECCHI Societa per Azioni our reference: ^{17 587} - Via Rismondo 78 27100 Pavia / Italy Junction box for motor compressors of refrigerators Patent claim: Junction box for hermetically sealed motor compressors for refrigerators to accommodate the starting relay and the thermal protection relay, characterized in that it has an outer container attached to the outer surface the capsule (10) of the motor compressor is attached, and the housing for the starter relay (40) and the thermal protection relay (28; 50) receives, separated by suitable walls, and that on an outer wall of the container, the one behind the refrigerator standing operator is facing, the terminal box for the electrical connections of the motor compressor is arranged, and that the connection box is opposite to the vertical outer wall of the capsule housing has limited transverse dimension.