JPS5922452Y2 - Freezer refrigerator - Google Patents

Description

[Detailed description of the invention] The present invention relates to a cold air blowing device particularly in the refrigerator compartment of a two-temperature refrigerator-freezer in which cold air cooled by a cooler is forcedly circulated to the freezer compartment and refrigerator compartment by a blower. The purpose of this is to ensure that cold air is blown out without any problems.

Hereinafter, the present invention will be explained in detail with reference to the illustrated embodiments.
1 is a refrigerator body constructed by filling a heat insulating material 4 between an inner box 2 made of synthetic resin and an outer box 3 made of iron plate. There is.

Reference numeral 8 denotes a cold air circulation path, which is composed of a back duct 12 and the back of the inner box. A part of the cold air cooled by the cooler 9 placed on the back of the freezer compartment is blown out by a blower 10 and flows down as shown by the arrow into the refrigerator compartment air outlet 13. The air is blown out to cool the inside of the refrigerator compartment 7.

11 is a damper thermostat, 14 is an upper air outlet 13
A control board rotatably mounted opposite the damper thermostat senses the air temperature in the refrigerator compartment 7 and operates to control the cold air.

Reference numeral 15 denotes a damper mounting tool which is integrally formed with a storage recess 16 for storing and fixing the damper thermostat 11 and a cold air guide groove 17 having a U-shaped cross section on the left and right sides of the storage recess 16. After storing and fixing the damper thermostat 11, a heat insulating sheet is attached. 18 covers the back side of the damper fixture and attaches it to the inner box 2 side.

Reference numeral 19 denotes a heat insulating cover made of a heat insulating material such as foamed PS, in which a heat insulating recess 20 covering the housing recess 16 of the damper mounting device and cold air guide grooves 21 having a U-shaped cross section adjacent to the left and right sides of the heat insulating recess 20 are integrally molded. , is mounted within the damper fitting 15 to form a cold air passage.

22 is a design cover that covers the heat insulating cover 19.

Since the present invention is constructed as described above, the heat insulating sheet in the blow-off section ensures that the cool air passes through the blow-off port of the damper fixture and flows into the heat-insulating cover.

The inflowing cold air then flows down the cold air passage, which has an overlapping structure of the cold air guide grooves of the heat insulating cover and the damper fitting, so that it is blown out into the refrigerator compartment without any cold air leakage.

Conventionally, in this type of cold air passage, if the sealing performance of the cold air passage is poor, the low temperature cold air directly cools the inner box, and the humid air in the refrigerator compartment condenses on the surface of the inner box, making it easy to cause dew.

In addition, there was a problem in that the leaked cold air convected near the temperature sensing part of the damper thermostat and the cold air temperature, which was lower than the air temperature in the refrigerator compartment, was detected, making it impossible to properly control the temperature. This eliminates the phenomenon of internal exposure and also prevents the damper thermostat from malfunctioning.

Furthermore, since the number of parts is small, assembly work is simplified, and a cold air blowing device with high practical effects can be provided.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of essential parts of a refrigerator-freezer according to the present invention, Fig. 2 is an exploded perspective view of a cold air blowing device according to the present invention, Fig. 3 is a rear perspective view of the damper mount shown in Fig. 2, and Fig. 4 is a 2 is a sectional view taken along the line IV-IV in FIG. 1. In addition, in the figure, 6 is a freezer compartment, 7 is a refrigerator compartment, 9 is a cooler, and 10
is a blower, 11 is a damper thermostat, 13 is an air outlet, 15 is a damper fitting, 16 is a storage recess, 17 is a cold air guide groove, 18 is a heat insulating sheet, 19 is a heat insulating cover, 20
21 is a cold air guide groove, and 22 is a cold air passage.

Claims (1)

[Scope of utility model registration request] In a two-temperature type refrigerator-freezer, in which cold air cooled by a cooler is circulated in a divided manner between a freezer compartment and a refrigerator compartment using a blower, a cold air outlet is provided at the upper back of the refrigerator compartment, and a cold air outlet is provided opposite to this cold air outlet. A damper thermostat that controls the flow of water, a storage recess for storing and fixing this damper thermostat, a damper fitting that is integrally formed with cold air guide grooves with a U-shaped cross section on the left and right sides of this storage recess, and a damper fitting that is installed between this damper fitting and the inner box. In addition to disposing a heat insulating sheet, a heat insulating cover is provided, which has a heat insulating recess that covers the storage recess of the damper fitting, and cold air guide grooves with a U-shaped cross section integrally formed on the left and right sides of the heat insulating recess, and this heat insulating cover is inserted into the damper fitting. A refrigerator-freezer characterized in that the cold air guide groove of the heat insulating cover and the cold air guide groove of the damper mount are fitted together to form a cold air passage and allow cold air to flow down.