DE7126605U - Heat exchangers for heating and cooling devices - Google Patents

Description

Pafer tsnwälfe / jL

Dr. O. Lcesenbeck '

D. "-! .- Ing. Bracke

b! -Ing. Lc ^ enbeck
BiCi = IcId, Heriurder Stege 1?

Benteler-Werire Aktiengesellschaft, 46 Bielefeld, Weidenstrasse 10-16

Heat exchangers for heating and cooling devices

The innovation concerns a heat exchanger for heating and cooling devices, consisting of a pipe coil or pipe harp and one with gill-like expressions or with air permeability cross-sections Venetian blind wall provided in the pipe coil area and laterally arranged beveled fastening legs O

Such heat exchangers known per se are preferred used as back wall condensers, also known as back wall condensers, for refrigerators and freezers. With these heat exchangers the blind wall and the bevelled fastening legs are generally made from a sheet metal part, for manufacturing reasons, the web height of the legs above the total amount of JaD ousievand is running the same, so that the latter is parallel to the rear wall of the refrigerator. It must be taken into account that the fastening legs in general with aligned, edged to the outside Stop legs are provided, which are formed from the same sheet metal part by folding.

In general, the inclination of the blind wall brings no improvement in the heat exchange performance. However, under certain circumstances This inclination may or may not be useful also be required. So on the one hand it is necessary

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dig, to manufacture heat exchangers of conventional type and on the other hand to create the possibility of the blind-like rear

The innovation is thus based on the task of using simple and cheap means to produce such a previously known one easily and consistently produced heat exchanger to redesign that an inclined position of the louvre-like rear wall is made possible without additional technical or work-related expenditure during assembly.

The innovation is that in the preferably parallel to each other standing! surfaces of the fastening legs is each indented a bead increasing in depth from top to bottom.

This bead is preferably pressed in on the inside, it being possible for the bead to be round.

Further characteristics and features of the innovation result from the advantageous example given below and described below Embodiment.

Show it;

Figure 1 the heat exchanger or .. Rückw an dver liquid or

Capacitor in the diagram in an interior view, FIG. 2 a side view in the direction of arrow A of FIG. 1, Figure 3 is a partial plan view.

The heat exchanger according to the innovation, which acts as a back wall condenser can serve, consists initially in a manner known per se of a so-called blind wall 1 »which is designated in such a way that as they prefer gill-like expressions arranged in rows having, the gill-like expressions forming air passage cross-sections 2. But it can also be simple Air passage cross-sections be arranged in the blind wall 1. Furthermore, a pipe coil 4 is arranged on the blind wall 1, preferably fastened by clamping straps 3, but also

712660521.10.71 ι

can be designed as a pipe harp, if necessary. The louvre wall 1 is made from a sheet metal part and has laterally beveled fastening legs 5, whose Web height is initially gieiciuntlabig during manufacture, uad over the total height of the wall 1.

The free ends of the fastening legs 5 bear to the outside bevelled stop legs 6. These are used to fasten the heat exchanger or the backplane condenser to the cooling unit. However, constructions are conceivable in which the fastening legs 5 themselves receive any desired passage cross-sections for fixing on the cooling unit with screws and the like.

The way in which the heat exchanger is fixed and how wide and in what arrangement the rows of gills 2 ¹ are initially irrelevant. The pipe coil or the listening harp can be placed on the front or back of the sheet metal and connected to it in such a way that good heat transfer takes place.

As already mentioned, first of all the fastening legs 5 made with a uniform web height. To achieve an inclined position when installing the heat exchanger, According to the innovation, the fastening legs each have a bead 7 increasing in depth from top to bottom. These The bead 7 is preferably pressed in towards the inside, as this is more advantageous for the installation of the heat exchanger. The bead is preferably designed to be round in order to ensure good stability of the fastening legs 5 at the same time. received so that it is even possible to use somewhat thinner sheet metal than usual for the manufacture of the heat exchanger. Instead of one However, a corrugation can also be placed in a correspondingly evenly widening fold.

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Claims (1)

- Zj. Protection from sayings I 1.Heat exchangers for heating and cooling devices, especially return I wall condenser or condenser, consisting of a pipe 1 snake or pipe harp and one with gill-like expressions I gen or with air passage cross-sections in the coiled pipe I richly and laterally arranged angled attachment points | no provided blind wall, daduvch identified I records that in the preferably parallel to each other I standing surfaces of the fastening legs (5) each one of I bead (7) or the like increasing in depth from top to bottom «, a I pressed isv. a 2. heat exchanger according to claim 1, characterized in that I the bead (7) on the inside of the opposing fastening legs (5) is pressed in. 3 · Heat exchanger according to claim 1, characterized in that : the bead (7) is each round. 4. Heat exchanger according to claim 1, characterized in that instead of a bead (7), a fold that widens evenly from top to bottom is printed in the fastening leg (5). I 71266052i.io.7i JE