SU1093881A1 - Device for removing thawed snow from household refrigerator - Google Patents

Abstract

A DEVICE FOR REMOVING BULK WATER FROM A HOUSEHOLD REFRIGERATOR, comprising a pan with a drain hole and a plate with ribs directed to the evaporator installed between the evaporator and the pan, characterized in that the plate has a circle window at the base of the ribs air and placed from the surface of the evaporator at a distance exceeding the maximum allowable thickness of non, the ribs are at an acute angle to the plastic and their upper edges are in contact with the surface vaporizer f «led

Description

The invention relates to refrigeration equipment, namely, devices for removing melt water from a domestic refrigerator.

A device for removing melt water from a domestic refrigerator is known, which includes a sump installed under the evaporator, the drain hole of which is connected to the drainage system for removing condensate f 1.

The drawback of the device lies in the fact that when the evaporator is thawed, pieces of ice, detached from its surface, penetrate into the PSDDON and close the drain hole, as a result of which the condensed water from the refrigerator tray is disrupted.

The closest to the invention to the technical essence and the achieved result is a device for removing melt water from a domestic refrigerator, containing a pan with a drain hole and a plate with ribs mounted to the G23 evaporator installed between the evaporator and the pan.

However, the known device does not exclude the possibility of blocking the drain hole of the sump with otta ice, since this plate divides the space between the evaporator surface and the sump into two zones with a different dew point. For this reason, in the upper zone, the evaporator is frozen as the cooler element, and in the lower zone, for the same reason, the bottom surface of the plate is covered with ice, which, when the evaporator thaws, falls into the sump and closes its drain hole, thereby preventing condensate from draining.

The purpose of the invention is to increase the reliability of the device.

This goal is achieved by the fact that in a device for removing melt water from a domestic refrigerator, a tray with a drain hole and a plate with fins installed between the evaporator and the tray, with fins directed to the evaporator, has air circulation windows at the bottom of the fins. the evaporator is at a distance exceeding the maximum permissible thickness of the non, the ribs are located at an acute angle to the plate and their upper edges are in contact with the surface of the evaporator.

FIG. 1 shows schematically the proposed device, a general view; in fig. 2 - plate with edges in isometry.

A device for removing melt water from a domestic refrigerator consists of a plate 2 placed under the evaporator 1 with ribs 3 and windows 4 at an acute angle to it, as well as a tray 5 with a drain hole 6 installed under the plate 2. The upper edges of the ribs 3 directly adjoin the bottom surface of the evaporator 1.

The device works as follows.

When the refrigerator operates in cooling mode, the surface of the evaporator 1 is covered with frost due to the humidity of the surrounding air. In the cooling process, plate 2 participates, which at the tops of the fins 3 has contact with the surface of evaporator 1. Through windows 4 to the cooled surface of evaporator 1, warmer air from the cooled volume flows. The latter heats the bottom surface of plate 2 at a higher temperature than the surface of evaporator 1. On the lower surface of the plate 2, the formation of non-ice does not occur, since, due to the presence of windows 4 in it, the air humidity in the zone between the pallet and the surface of the heat exchanger 1 (dew point) is determined by the temperature swarm this surface, which is lower than the temperature of the lower surface plate 2. Since the frosting always .element which has a lower temperature on the evaporator surface 1 formed -iney and top edges 3 freezes

in its thickness.

In defrosting mode

The evaporator 1 is preheated by a known method (hot refrigerant vapor). At the same time, the frost does not detach from this surface, but hangs on the ribs 3 and the plate 2. The ribs 3 on the plate 2 are set obliquely so that they block the windows 4 from accidentally falling into the pallet 3 pieces of missing ice. Remaining on the surface of the plate 2, the pieces are not finally melted by the heat of the evaporator 1, which is transmitted through the contact of the ribs 3 with its surface.

At the end of thawing, all of the frost turns into melt water, which

through the drain opening 6 of the plate 2 is removed by means of a drainage system from the refrigerator.

Thus, the snow coat of the evaporator 1 is completely transformed into water, without touching the inner surface of the pallet 5, without clogging and subsequent freezing of the drain hole 6.

0938814

The introduction of the proposed device will ensure the operation of a domestic refrigerator with an automatic defrosting mode, reduce the energy consumption for re-freezing of the thawed products, and reduce operational roadster by up to 25% compared to the base case (Oka-6 refrigerator).

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Claims (1)

DEVICE FOR REMOVING THE MELT BODY FROM HOUSEHOLD REFRIGERATOR, containing a tray with a drain hole and a plate with ribs directed to the evaporator installed between the evaporator and the tray, characterized in that, in order to increase reliability in operation, the plate has windows made at the base of the ribs for air circulation and is placed from the surface of the evaporator at a distance exceeding the maximum permissible frost thickness, while the ribs are located at an acute angle to the plate and their upper edges are in contact with the surface aritelya: