JPH058366U - Refrigerator temperature controller - Google Patents

Abstract

(57) [Summary] [Object] The present invention, in a refrigerator temperature control device, increases the internal volume of the refrigerating compartment, prevents the damper from splashing water, simplifies wiring, and stabilizes the temperature control of the refrigerating compartment. To aim. [Structure] A heat sensitive portion 19 is attached to an inlet of a cool air return duct 16 and a damper 18 provided in a cool air supply duct 15 is provided.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a temperature control device for a refrigerator.

[0002]

[Prior Art]

 In recent years, the temperature forms of foods handled in food flow passages have been various, and the storage temperature immediately before cooking also has various temperature forms. Therefore, refrigerators are required to have a plurality of storage temperatures, and one refrigerator is required to have a plurality of temperature ranges.

An example of the above-mentioned refrigerator temperature control device will be described below with reference to the drawings. In FIG. 3, 1 is a refrigerator main body cabinet, 2 is a partition having a heat insulating body, 3 is a door having a heat insulating body, 4 is a freezing room, 5 is a refrigerating room, and a compressor is provided on the ceiling of the refrigerator main body cabinet 1. 6, a condenser 7, a dryer 8 and a capillary 9 are provided, and a cooler 10 is provided on the interior ceiling of the freezer compartment 4 and they are connected in sequence. Further, the condenser 7 is provided with a condenser cooling electric motor 11 and a condenser cooling fan 12, and the cooler 10 is provided with a condenser electric motor 13 and a cooler fan 14.

On the other hand, 15 is a supply duct (cold air supply duct), 16 is a return duct (cold air return duct), a damper 18 and its damper heat sensitive portion 19 are provided at the supply duct outlet 17. The supply duct inlet 20 and the return duct outlet 21 are connected to the freezer compartment 4, and the supply duct outlet 17 and the return duct inlet 22 are connected to the refrigerator compartment 5.

The operation of the refrigerator temperature control device configured as described above will be described below.

The freezer compartment 4 is cooled to a predetermined temperature by the cool air produced by the compressor 6, the condenser 7, the dryer 8, the capillary 9, and the cooler 10. On the other hand, in the refrigerating compartment 5, the cold air in the freezing compartment 4 is cooled through the supply duct inlet 20, the supply duct 15, the supply duct outlet 17, and the damper 18. Further, the cold air which has taken away the heat of the refrigerating chamber 5 returns to the freezing chamber 4 through the return duct inlet 22, the return duct 16 and the return duct outlet 21. When the refrigerating compartment 5 is cooled, the damper heat-sensitive part 19 senses it, closes the damper 18 to prevent overcooling, and keeps the refrigerating compartment 5 at a constant temperature.

[0007]

[Problems to be solved by the device]

 However, in the above-mentioned configuration, the damper 18 must be provided in the refrigerating compartment 5, the inner volume of the refrigerating compartment 5 becomes small, and the cooler 10 of the freezer compartment 4 is the cooler heater 10A when defrosting. It is heated and generates warm air containing a lot of humidity.

This warm air may come into contact with, condense, or drip on the wall surface of the supply duct 15 that is cooled during cooling, wet the damper 18, and hinder its operation. Furthermore, the wiring for the damper 18 complicates the structure. Further, since the damper heat-sensitive part 19 is located at the supply outlet 17, there is a problem that it is difficult to stabilize the temperature control of the refrigerating chamber 5.

The present invention solves the above-mentioned conventional problems, and an object of the present invention is to provide a highly reliable refrigerator temperature control device that increases the effective internal volume of a refrigerating compartment.

[0010]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the temperature control device of the refrigerator of the present invention is provided with a damper on the outlet side of the cool air return duct and a damper heat sensitive part on the cool air supply duct.

[0011]

[Action]

 According to the present invention, the internal volume of the refrigerating compartment is increased, the damper is prevented from splashing water, the wiring process is simplified, and the temperature control of the refrigerating compartment is easily stabilized.

[0012]

Embodiment A temperature control device for a refrigerator according to an embodiment of the present invention will be described below with reference to the drawings. It should be noted that the same components as those of the related art are designated by the same reference numerals and detailed description thereof will be omitted.

In FIGS. 1, 2 and 3, reference numeral 18 denotes a damper, which is provided at the freezer compartment 4 and the return duct outlet 17, and the heat-sensitive portion 19 of the damper is provided at the return duct inlet 22.

The temperature control device of the refrigerator configured as described above will be described with reference to FIGS. 1 to 3. The freezing chamber 4 is cooled to a predetermined temperature by the cool air generated by the cooling device which is sequentially connected to the compressor 6, the condenser 7, the dryer 8, the capillary 9, and the cooler 10. The cold air in the freezer compartment 4 passes through the supply duct inlet 20, the supply duct 15, and the supply duct outlet 17, is guided to the refrigerating compartment 5, and cools the refrigerating compartment 5. On the other hand, the cold air that has taken away heat from the refrigerating chamber 5 returns to the freezing chamber 4 through the return duct inlet 22, the return duct 16, the return duct outlet 21, and the damper 18. When the refrigerating chamber 5 is cooled to a predetermined temperature, the damper heat-sensitive part 19 senses it and closes the damper 18 to prevent overcooling. When the temperature of the refrigerating compartment 5 rises, the damper heat-sensing section 19 detects it and opens the damper 18 to supply cool air again to cool the refrigerating compartment 5 to a predetermined temperature.

As described above, according to the present embodiment, the damper 18 is provided on the return duct outlet 17 side, and the damper heat-sensitive part 19 is provided on the return duct inlet 22, so that the internal volume of the refrigerating chamber 5 is increased. At the same time, the damper 18 is prevented from being splashed with water, the wiring process is simplified, and the temperature control of the refrigerating compartment 5 is further easily stabilized.

[0016]

[Effect of the device]

 As described above, according to the present invention, the damper is installed in the cold air supply duct and the damper heat-sensing part is installed in the cold air return duct inlet, so that the internal volume of the refrigerating chamber is increased, and the damper water is prevented and the wiring process is simplified. Moreover, it becomes easier to stabilize the temperature control of the refrigerator room.

[Brief description of drawings]

FIG. 1 is a cross-sectional view of a refrigerator temperature control device according to an embodiment of the present invention.

FIG. 2 is a sectional view of the temperature control device shown in FIG.

3 is a perspective view of the refrigerator shown in FIG. 1 with the door open.

FIG. 4 is a sectional view of a conventional refrigerator temperature control device.

5 is a sectional view of the temperature control device shown in FIG.

[Explanation of symbols]

 1 Refrigerator Main Cabinet 2 Partition 3 Door 4 Freezer 5 Refrigerator 6 Compressor 7 Condenser 8 Dryer 9 Capillary 10 Cooler 11 Condenser Cooling Motor 12 Condenser Cooling Fan 13 Cooler Motor 14 Cooler Fan 15 Supply Duct 16 Return duct 18 Damper

Claims (1)

[Claims for utility model registration] 1. A compressor, a condenser, a dryer, a capillary, and a cooler are sequentially connected, and the condenser is provided with a condenser cooling electric motor and a condenser cooling fan. A refrigerator main body cabinet including a cooler electric motor provided in a cooler, a cooler fan, and a heat insulating box, a door of a heat insulator provided on the front surface of the refrigerator main body cabinet, and a partition of a heat insulator provided inside the refrigerator main body. It consists of a cold air supply duct and a cold air return duct.
A temperature control device for a refrigerator having a damper provided in a cold air supply duct.