CN2388576Y - Frostless device of chilling chamber for direct-colded domestic refrigerator - Google Patents

Abstract

The utility model relates to a defrosting device for a freezing chamber of a direct cooling domestic refrigerator. The purpose of the utility model is to solve the defrosting problem of the surface of an evaporator of a freezing chamber of a direct cooling domestic refrigerating device. The technical proposal is mainly characterized in that an automatically controlled electric heating element is installed on the evaporator of the freezing chamber. The evaporator is positioned on the top part or on the back side of the freezing chamber; a water receiving disc is arranged under the evaporator; a water outlet of the water receiving disc connects a downpipe to a frost and water evaporating disc; the downpipe can be buried in a housing body or is arranged outside the housing body; the frost and water evaporating disc is arranged above a compressor or a bottom condenser. The utility model enable the widely adopted direct cooling domestic refrigerating device to keep the inherent advantages as well as enables the evaporator to be automatically defrosted.

Description

The frost-free means of the useful refrigerating appliance refrigerating chamber of direct-cooling type man

The utility model belongs to freezing equipment, relates to the accessory of direct-cooling type family expenses refrigerator.

General family expenses refrigerating appliance comprises household refrigerator-freezer, frozen food hutch and food freezer, has air-cooled usually and two types of direct-cooling types.Though the air-cooled function that automatic defrosting is arranged, its specification requirement height is made complexity, and production cost is high; Need to install the blower fan of forcing cooling, the energy consumption height, noise is big; Because fan part and air channel account for certain volume, the refrigerating appliance capacity utilization reduces.Direct-cooling type family expenses refrigerating appliance, the inner cooling of refrigerating chamber is to utilize natural convection air to circulate to realize.Thereby simple in structure, with low cost, capacity utilization is high, energy consumption is low, noise is little; but do not find to adopt the automatic defrosting technology so far as yet; therefore; direct-cooling type refrigerating appliance freezer evaporator surface is keeping the frost layer enduringly; knot is thick more more; to keeping utensil performance and food hygiene all unfavorable: its defrost generally is to shut down laggard pedestrian worker's defrost and artificial treatment defrost water, causes big inconvenience to the user.This problem fails to obtain fine solution for a long time.

Task of the present utility model is exactly the shortcoming that will overcome prior art, and particularly the direct-cooling type family expenses refrigerating appliance refrigerating chamber of preferring to use at people is provided with frost-free means, makes the direct-cooling type refrigerating appliance both keep its intrinsic advantage, has automatic defrosting system again.

For achieving the above object, take following technical scheme:

The major technique design feature is that the heating of control automatically is installed on direct-cooling type family expenses refrigerating appliance freezer evaporator, and drip tray is installed below freezer evaporator, and the delivery port of drip tray connects downpipe, and downpipe is connected to white water evaporating pan; Frost water evaporating pan is installed on refrigeration compressor or end condenser top; Isolate at freezer evaporator lateral surface installation decorative face helmet or panel; There are enough spaces to make air convection channel between freezer evaporator and the store food zone.

Advantage of the present utility model:

1, be installed on heating on the freezer evaporator, heating power regularly can automation removes the frost layer on freezer evaporator surface;

2, drip tray is installed on below the freezer evaporator, can catch the white water that flows down from the freezer evaporator surface, the water receiving face of drip tray and horizontal plane tilt, so that defrost water flow to the drip tray delivery port, and by downpipe defrost water are drained in the outer white water evaporating pan of refrigerating chamber;

3, because white water evaporating pan is installed on compressor or end condenser top, the heat that utilizes compressor or end condenser to discharge in the kind of refrigeration cycle process evaporates the white water in the white water evaporating pan automatically;

4, in evaporator external decorative face helmet or panel are installed, are made freezer compartment structure keep attractive in appearance;

5, because the evaporator cools air has the space of enough convection channel, make evaporimeter under the automatic defrosting condition, can guarantee that again freezer temperature reaches the limits of standard code.

Further specify the embodiment of technical scheme with reference to accompanying drawing:

Fig. 1 is the structural representation of the utility model direct-cooling type family expenses refrigerating appliance;

Fig. 2 is the evaporation structure scheme of installation that refrigerating chamber is located at top;

Fig. 3 is the structural representation that freezer evaporator is installed on the refrigerating chamber rear side;

Fig. 4 is the structural representation that downpipe is placed in the casing outside;

Fig. 5 is the structural representation that white water evaporating pan is arranged at condenser top, the end;

Fig. 6 is the structural representation of drip tray additional electrical thermal element.

The utility model direct-cooling type family expenses refrigerating appliance concrete structure scheme as shown in Figure 1.At housing 14 internal upper parts is refrigerating chamber 3, the bottom is a refrigerating chamber 5, be provided with to the doorstep 2 and Xiamen 4 respectively, the heating 11 of automatic control work is housed in the evaporimeter 12 that the refrigerating chamber top is provided with, heating and automatic control member can adopt the existing conventional device, drip tray 10 is housed below the evaporimeter, drip tray is obliquely installed, the defrost water that flows down from evaporimeter flow to the downpipe 9 of drip tray delivery port in being embedded in housing and flows to white water evaporating pan 8, frost water evaporating pan 8 is arranged on the top of compressor 7, the housing back is a condenser 13, and the housing bottom surface is provided with leg 6.

Refrigerating chamber 5 also can be located at the top in the housing, and refrigerating chamber 3 is located at the bottom, and evaporimeter 12 is located at the refrigerating chamber top equally, as shown in Figure 2.The organization plan of all the other members is with shown in Figure 1.

Evaporimeter 12 also can be located at the rear side of refrigerating chamber 5, as shown in Figure 3.

Downpipe 9 can be located at the housing outside, as shown in Figure 4.

Frost water evaporating pan 8 can be arranged on end condenser 15 above, as shown in Figure 5.

For preventing that white water from freezing, in drip tray 10, an attached heating (selecting the heating of current version for use) that helps can be set, as shown in Figure 6.

Claims (7)

1, a kind of frost-free means of direct-cooling type family expenses refrigerating appliance refrigerating chamber is characterized in that going up the heating (11) that automatic control is installed at the evaporimeter (12) of refrigerating chamber (5).

2, the frost-free means of direct-cooling type family expenses refrigerating appliance refrigerating chamber according to claim 1 is characterized in that evaporimeter (12) is positioned at the top of refrigerating chamber (5) or the rear side of refrigerating chamber.

3, the frost-free means of direct-cooling type family expenses refrigerating appliance refrigerating chamber according to claim 1 and 2 is characterized in that being provided with drip tray (10) below freezer evaporator (12), the delivery port of drip tray connects downpipe (9) to white water evaporating pan (8).

4, the frost-free means of direct-cooling type family expenses refrigerating appliance refrigerating chamber according to claim 3 is characterized in that downpipe (9) is embedded in the housing (14), or is arranged at the housing outside.

5, the frost-free means of direct-cooling type family expenses refrigerating appliance refrigerating chamber according to claim 3 is characterized in that white water evaporating pan (8) is installed in the top of refrigeration compressor (7) or end condenser (15).

6, the frost-free means of direct-cooling type family expenses refrigerating appliance refrigerating chamber according to claim 1 and 2 is characterized in that the lateral surface of evaporimeter (12) is installed decorative face helmet or panel.

7, the frost-free means of direct-cooling type family expenses refrigerating appliance refrigerating chamber according to claim 1 and 2 is characterized in that can establishing auxiliary electro-heat element (16) in drip tray (10).

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