JPH1062057A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To drain water to the inlet air duct of a refrigerating chamber and exhaust water to a drain even when water is spelled near a thermocase by providing a through hole through which the thermocase communicates with the inlet air duct of the refrigerating chamber. SOLUTION: A thermocase 6 communicates with the inlet air duct 12 of a refrigerating chamber by a through hole 15 through the heat insulating material 11' of a partition chamber 10'. Water entering the thermocase 6 is guided to the inlet air duct 12 of the refrigerating chamber through the through hole 15 provided below the thermocase 6 and drained by a drain 14. Further, even when convection is blocked due to food, etc., placed on the through hole 15, cold air circulates through the through hole 15 so the temperature of the refrigerating chamber can be controlled to prescribed temperature. Thus, the temperature of the refrigerating chamber can be prevented from being excessively lowered to prescribed temperature or lower and electric charges from being wastefully consumed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator having a temperature sensor for controlling the temperature of a freezer compartment.

[0002]

2. Description of the Related Art Conventionally, a refrigerator having a temperature detector for detecting the temperature of a freezer compartment and stopping the operation of a compressor is disclosed in, for example, Japanese Patent Publication No. 3-225177. explain.

As shown in the figure, 1 is a refrigerator main body, 2 is a freezing room, 3 is a cooler provided in the back of the freezing room, 4 is a blower for blowing cool air cooled by the cooler 3, and 5 is a cooler. Vessel 3
Duct for distributing the cool air cooled by the blower 4, 6
Is a thermo case housing a temperature sensor 7 for controlling the temperature of the freezing room 2, 5a is an opening of the cool air of the duct 5 to the thermo case 6, and 8 is a convection of the cool air from the duct 5 into the thermo case 6. A convection port 9 is a suction port of the freezing room 2, and a freezing room suction air passage 12 formed of a heat insulating material 11 in the partition wall 10 communicates with a lower end of the cooler 3.

[0004] At the lower end of the cooler 3, there are provided a defrost heater 13 and a drain 14 for draining defrost water from the cooler 3 and dew in the freezer suction air passage 12.

In such a configuration, the cool air cooled by the cooler 3 is sent to the duct 5 by the blower 4,
The cold air discharged from the opening 5a passes through the thermo case 6, cools the temperature sensor 7, and flows from the convection port 8 of the thermo case 6 to the suction port 9 and the freezer compartment suction air passage 12 to cool the cooler 3.
Is returned to.

[0006]

However, in the above configuration, if water is spilled in the vicinity of the thermo case, the water that has entered the thermo case without being drained freezes and reaches the temperature sensor to freeze the temperature sensor. This causes a malfunction of the temperature.

Further, if food or the like is placed at the convection port of the thermo case, the convection is hindered and the temperature sensor does not operate due to the hindrance of the convection of the cold air even if the freezer reaches a predetermined temperature.
There has been a problem that the freezer compartment is cooled too much below a predetermined temperature, resulting in wasted electricity costs.

According to the present invention, even if water is spilled near the thermo case, the water is drained to the drain by draining the water into the freezer suction air passage, and food or the like is placed at the convection port of the thermo case to prevent convection. Another object of the present invention is to control the temperature of the freezer compartment to a predetermined temperature.

[0009]

SUMMARY OF THE INVENTION In order to solve this problem, the present invention is provided with a through-hole for communicating the inside of a thermo case with a freezer suction air passage.

According to the above-described structure, it is possible to drain water even if water is spilled in the vicinity of the thermo case, and it is possible to obtain an effect that convection in the thermo case is good and the freezing room temperature can be controlled to a predetermined temperature.

[0011]

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a refrigerator, a cooler provided in the freezer compartment, a blower for blowing cool air cooled by the cooler, a duct for distributing the cooled cool air, A temperature sensor for controlling the temperature and a thermo case housing the temperature sensor, a freezing compartment suction air passage provided at the bottom of the freezing compartment, and a through hole communicating between the inside of the thermo case and the freezing compartment suction air passage. It has an effect that the drainage in the thermo case can be prevented to prevent freezing, and the freezing room temperature can be controlled to a predetermined temperature by securing convection to the temperature sensor.

An embodiment of the present invention will be described below with reference to FIG. In addition, the same reference numerals are given to the same parts as those in the related art, and the description is omitted.

In the drawing, reference numeral 15 denotes a freezer suction air passage 1 through a heat insulating material 11 'in a thermo case 6 and a partition wall 10'.
2 is a through-hole communicating with 2.

In such a configuration, the water that has entered the thermo case 6 passes through the through-hole 1 provided at the lower part of the thermo case 6.
5, the air is led to a freezing room suction air passage 12 and drained by a drain 14. Further, even if food or the like is placed at the convection port of the thermo case and convection is obstructed, cool air convects through the through-hole 15 to control the temperature of the freezing compartment to a predetermined temperature.

[0015]

As described above, according to the present invention, by providing a through-hole communicating between the inside of the thermo case and the freezer suction air passage, even if water is spilled in the vicinity of the thermo case, the water can be drained, and the water of the temperature sensor can be discharged. Can prevent freezing. In addition, even if food is placed at the convection port of the thermo case and convection is obstructed, convection from the through port is possible, and the temperature of the freezing room is cooled too much below a predetermined temperature, thereby preventing waste of electricity bills. Has an effect.

[Brief description of the drawings]

FIG. 1 is a sectional view showing a main part of a refrigerator according to an embodiment of the present invention.

FIG. 2 is a sectional view of a conventional refrigerator.

FIG. 3 is a cross-sectional view of a conventional temperature control device of FIG. 2;

[Description of Signs] 2 Freezer compartment 3 Cooler 4 Blower 5 Duct 6 Thermo case 7 Temperature sensor 12 Freezer compartment suction air passage 15 Through hole

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Masatoshi Sasaki 4-5-2-5 Takaidahondori, Higashiosaka City, Osaka Inside Matsushita Refrigerating Machinery Co., Ltd.

Claims (1)

[Claims] 1. A freezing compartment and a cooler provided at the back of the freezing compartment,
A blower that blows the cool air cooled by the cooler, a duct that distributes the cooled cool air, a temperature sensor that controls the temperature of the freezing room, a thermo case that stores the temperature sensor, and a bottom provided in the freezing room bottom. A freezer suction air passage,
A refrigerator provided with a through-hole communicating the inside of the thermo case and the freezer compartment suction air passage.