DE1146512B - A cooling device consisting of a plurality of heat exchangers connected to one another by pipes - Google Patents

Description

A plurality of interconnected by pipelines Existing heat exchangers cooling device The invention relates to a cooling device, in the case of the evaporator, condenser, dryer etc. and those connecting these units, advantageously serpentine, tubular lines made of bead-like Deformations of two flat sheet metal plates connected to one another are formed.

In the known such cooling devices are the individual Units of the aggregate fixed in their arrangement and unchangeable to one another each limited only to a certain plate size, so that for the numerous in size and shape differing refrigerators od. The like. Each have a corresponding Plate size is required, which requires a greater amount of material and labor and storage is made more difficult.

Furthermore, tubular connecting beads are known in an evaporator, in which a right-angled turning of neighboring ones through cuts made on one side Turn parts is enabled. Finally, it is known in built-in cooling systems, individual surface parts of the base plate with an arrangement of weakening incisions to bend against each other at right angles.

The invention aims to one of the various units and those connecting pipe beads having sheet metal plate in such a way that the individual Units placed in any position and any distance from one another can be.

This goal is essentially achieved in that both the units as well as in particular the connecting pipes by at a certain distance from their deformation edges and separating cuts made transversely to the plane of the plate in this way from the originally common Plate are cut free that the various units (evaporator, condenser. Dryer) by means of a Deformation process, namely by bending and / or pulling the turns apart brought into any desired position and any distance from one another can be.

The advantages are in particular that a single, only one relatively small size and economical to manufacture unit base plate, which at the same time has the further advantage of simple storage and transportation has, by a corresponding change in position and distance of their individual units without any particular difficulties and in a short time to different sizes a refrigerator or the like. Can be adapted.

In the new training there is another advantage that the When the beads are cut free, the flanges promote the cooling process Received training. Namely, are z. B. in the condenser unit the flanges provided with transverse incisions, the resulting tongue-like flaps alternately to improve the heat transfer from the condenser to the ambient air have turned in the opposite direction.

The drawing shows an exemplary embodiment of the subject matter of the invention shown. It shows Fig. 1 a view of the beads of the various units and lines containing double plate, Fig. 2 is a similar view in a smaller size Scale after cutting free and in the expanded state, Fig. 3 a Partial view of the section framed by dash-dotted lines in Fig. 2, Fig. 4 Cross section along the line a-a of Fig. 3.

With 1, 2 are two of the same size and on top of each other Areas in a suitable manner, e.g. B. firmly connected to one another by means of a soldering foil Sheet metal plates referred to, with each individual plate with mirror-inverted matching and depending on their intended purpose, having a different cross-section Is provided with beads. When it is intended for installation in a refrigerator Plate 1, 2, the bead 3 forms the pipe connection for the pressure side of a not shown Compressor. Two parallel-connected and one close to the pipe bead 3 Larger cross-section having capacitor parts 4, 5, their common outlet 6 in a multiple serpentine pipe guide 7 with a relatively low cross-section passes.

The pipe guide 7 is connected to an evaporator 10 via pipe beads 8, 9 connected, which in a known manner from a plurality of z. B. arranged in parallel and tubes 13 opening into lateral channels 11, 12.

The outlet end of the evaporator 10 is connected via a bead arrangement 14 corresponding to the type of pipe guide 7 with a dryer 15, the narrowing tubular end part 16 of which forms the connection part for the suction side of the compressor.

In order to be able to install the double plate 1, 2 shown in Fig. 1 in a refrigerator of any size, the individual units, condenser 4, 5, evaporator 10 and dryer 15 must be brought into the required distance from one another. For this purpose, the double plate 1, 2 is broken down into individual, but coherent parts by a plurality of cuts shown in dashed lines in Fig. 1. In the example, the condenser consisting of the parts 4, 5 forms with the connecting pipe 3, furthermore the evaporator 10 with connecting beads 8, 9 and the dryer 15 with the end pipe 16 each form a separate part. At the same time, the pipe guides 7 and 14 are cut free by further cuts 20 and 21, respectively. When cutting free, of course, radially protruding tabs are created on both sides of the different beads, which can have different widths. So are z. B., as can be seen from Fig. 2, the tabs 23 and 24 particularly narrow, so that the individual turns of the pipe guides 7 and 14 can be pulled apart in any length to easily and quickly the individual units of the cooling device to be able to adapt to any size of a refrigerator or the like.

The arrangement of relatively wide tube tabs has, however, in particular with the capacitor parts 4, 5, special advantages. As shown in Figs. 3 and 4, are those located on both sides of the capacitor parts 4 and 5 and by cuts of limited length 30, 31, 32 formed tabs 25 and 26 provided with cross-sections, the tongue-like and, appropriately alternating, appendages bent on both sides 27 and 28 form, whereby the heat transfer is significantly improved. The middle Interface 31 is advantageously interrupted at some points, but not separate tongues 27, 28 a bridge-like and the connection of the capacitor parts 4, 5 form securing web 35.

Of course, the invention is not restricted to the example shown. So is z. B. the dryer 15 is not absolutely necessary, and it is irrelevant in what way, depending on their intended purpose, a different cross-section having beads are made in the interconnected sheet metal plates. The pipelines can also have a semicircular cross-section, in that the beads are only pressed into one of the two plates 1, 2. Further the pipe beads can also be arranged in a spiral instead of serpentine turns be. It is important that different units that form a uniform aggregate with the associated connecting lines produced at the same time in a double plate are and pulled apart after cutting free to any mutual distance can be. A unit designed in this way can therefore also be used if necessary used for other purposes.

Claims (2)

PATENT CLAIMS: 1. Cooling device in which the evaporator, condenser, dryer, etc. and the advantageously serpentine, tubular lines connecting these units are formed from bead-like deformations of two sheet-metal plates connected flat to one another, characterized in that the individual units (4, 5; 10, 13; 15) and the lines (3; 7; 14) connecting them are cut free by cuts from the common base plate (1, 2) made at a certain distance from their deformation edges transversely to the plate plane (1, 2) so that the Units (4, 5; 10, 13; 15) can be brought into any desired position and any distance from one another by a bending process and / or by pulling the cut-free pipe windings (3; 7; 14) apart. 2. Apparatus according to claim 1, characterized in that the edge flanges (25, 26) formed when the capacitor unit (4, 5) is cut free and having a corresponding width are provided with incisions arranged transversely to the direction of flow, which advantageously while retaining individual continuous stiffening webs ( 35) form tongue-like extensions (27, 28) bent alternately in opposite directions from the flange plane. Considered publications: German Patent Specifications No. 686 773, 1019 329; U.S. Patent Nos. 2,779,168, 2,795,113, 2848200.