KR100289599B1 - Refrigerator - Google Patents

Abstract

When water penetrates into the freezer compartment 2, the longing of the temperature sensor 7 by the freezing of the water is released, and at the same time, when food is placed in the convection port of the temperature sensor, the temperature control of the freezer compartment 2 (7). ) Aims to ensure normal.

A freezer compartment (2),

A cooler (3) installed in a deep portion of the freezer compartment (2),

A blower 4 for blowing cold air cooled by the cooler 3,

A duct 5 for distributing the cooled cold air,

A thermo case 6 installed at the bottom of the freezer compartment 2,

Is installed in the thermo case (6), and a temperature sensor (7) for controlling the temperature of the freezer compartment (2),

A cold air circulation passage (12) communicating with the freezing chamber (2), passing through the bottom of the thermo case (6), and installed in the cooler (3);

And a through passage 15 provided through the bottom portion of the thermo case 6 and the cold air circulation passage 12.

When water penetrates into the thermo case 6, the water is discharged through the through passage 15, and the cold air passes through the through passage 15, and the storage chamber 2 and The cold air circulation path 12 and the cooler 3 are circulated.

Description

Refrigerator {REFRIGERATOR}

The present invention relates to a refrigerator having a temperature sensor for controlling the temperature of the refrigerator.

(Prior Art)

DESCRIPTION OF RELATED ART Conventionally, the refrigerator which has a temperature detector for starting and stopping a compressor by detecting the temperature of a refrigerator is described, for example in Unexamined-Japanese-Patent No. 03-225177. A cross-sectional view of the main part of the conventional refrigerator is shown in FIG. An enlarged cross-sectional view of the main part of the refrigerator shown in FIG. 3 is shown in FIG. 4. 3 and 4, the refrigerator includes a main body 101, a freezing chamber 102 provided in the main body 101, a cooler 103 provided in a deep portion of the freezing chamber 102, and a blower 104 for blowing cold air. ), A duct 105 for distributing cold air, a temperature sensor 107 for controlling the temperature of the freezer compartment 102, and a thermo case 106 containing the temperature sensor 107. An opening 105a for sending cold air to the thermocase 106 is formed in the duct 105. A convection opening 108 for convection the cold air from the duct 105 in the thermocase 106 is formed in the thermocase 106. A cold air suction port 109 for sending cold air in the freezer compartment 102 to the cooler 103 is formed at the bottom of the freezer compartment 102. The partition wall 110 is provided in the bottom part of the freezer compartment 102, and the partition wall 110 is formed of the heat insulating material 111. As shown in FIG. A suction air path 112 is covered with the heat insulating material 111 and provided. The cold air from the suction port 109 passes through the suction air passage 112 and communicates with the lower end of the cooler 103. At the lower end of the cooler 103, a defrost heater 113 and a drain 114 for removing the defrost water of the cooler 103 and the dew in the suction air passage 112 are provided.

In the above configuration, the cool air cooled in the cooler 103 is sent to the duct 105 by the blower 104. The cool air discharged from the opening 105a of the duct 105 passes through the convection port 108, the suction port 109, and the suction air passage 112 of the thermo case 106 in turn, and returns to the cooler 103. Lose.

In the above configuration, when the water spilled near the thermocase 106, the spilled water was frozen without being discharged. In addition, the frozen ice reached the temperature sensor 107, and the temperature sensor 107 was frozen. As a result, malfunction of the temperature sensor occurred.

In addition, when food or the like is placed in the convection opening 108 of the thermo case 106, convection of cold air is inhibited. Therefore, even if the freezer compartment reaches a predetermined temperature, the temperature sensor 107 does not operate normally. As a result, there has been a problem that the freezing chamber 102 is excessively cooled below a predetermined temperature and a lot of electric charges are required.

The refrigerator of the present invention prevents a malfunction of the temperature sensor when water is spilled near the thermocase, and at the same time, when a food or the like is placed in the convection of the thermocase, the convection of cold air is inhibited. It is an object to be able to control the temperature at a desired temperature.

(Initiation of invention)

A refrigerator according to the present invention is provided in a storage compartment for storing food and a deep portion of the storage compartment, and is provided at a front side of the cooler in the storage compartment and a cooler for cooling the cold air. A duct for communication, a thermo case installed at a desired position in the storage compartment, a temperature sensor for controlling a temperature of the storage compartment, installed in the thermo case, and communicating with the storage compartment. And a cold air circulation passage provided through the cooler, a through passage provided through the bottom portion of the thermo-case and the cold air circulation passage, and a drain located below the through passage and communicating with the cold air circulation passage. When water enters the thermocase, the water passes through the passageway and is discharged from the drain. In addition, the cold air passes through the through passage to circulate the storage chamber, the cold air circulation path, and the cooler.

In the above configuration, particularly preferably, the storage chamber is a freezing chamber for storing the food in a frozen state. Particularly preferably, a blower for circulating cold air cooled by the cooler is connected to the cooler and is provided. Particularly preferably, the storage chamber is a freezing chamber, and a refrigerating chamber is provided adjacent to the freezing chamber. Especially preferably, the duct has a first opening portion and a second opening portion, the first opening portion communicates with the thermocase, and the second opening portion communicates with the storage chamber. Particularly preferably, the thermo case is provided at the bottom of the storage chamber. Particularly preferably, the through passage is provided below the storage chamber. Particularly preferably, the through passage is provided covered with a heat insulating material.

With the above configuration, when water is spilled near the thermocase, or when water invades the thermocase, the water is discharged without freezing. In addition, even when food or the like is placed in the convection port of the thermocase, convection of the cold air in the thermocase is ensured, whereby the effect of controlling the temperature of the circulating cold air to a desired temperature can be obtained.

1 is an enlarged sectional view of a main portion of a refrigerator of one embodiment of the present invention;

2 is a sectional view showing main parts of a refrigerator of one embodiment of the present invention;

3 is a sectional view of main parts of a conventional refrigerator.

4 is an enlarged sectional view of a main portion of the conventional refrigerator shown in FIG.

(List of reference numerals of drawing)

2: freezer 3: cooler

4: blower 5: duct

5a: first opening 5b: second opening

6: Thermocase 7: Temperature sensor

8: convection zone 9: cold circulation

10: partition wall 11: insulation

12: Cold Circulation Path 13: Defrost Heater

14: drain 15: through passage

16: through hole 18: door

(Description of Preferred Embodiments)

An embodiment of the refrigerator of the present invention will be described below. A main cross-sectional view of the refrigerator of one embodiment of the present invention is shown in FIG. 2. An enlarged sectional view of the main part of the refrigerator of one embodiment of the present invention is shown in FIG. 1. 1 and 2, the refrigerator includes a main body 1, a freezing chamber 2 provided in the main body, a cooler 3 provided in a deep portion of the freezing chamber 2, a blower 4 for blowing cold air, The duct 5 provided in the front side of the cooler 3, the thermo case 6 provided in the bottom part of the freezer compartment 2, and the temperature sensor 7 provided in the thermo case 6 are provided. The freezing chamber 2 is a storage chamber for cooling and storing food and the like. The cooler 3 cools the air to generate cold air. The duct 5 has a function of distributing cold air to the freezing chamber 2 and the thermocase 6 and sending it. The temperature sensor 7 detects the temperature of cold air circulating and controls the temperature of the freezing chamber 2. The duct 5 has the 1st opening part 5a and the 2nd opening part 5b, and the 1st opening part 5a sends cold air to the thermocase 6, and the 2nd opening part 5b is carried out. Sends cold air to the freezer compartment (2). A convection port 8 for convection the cold air from the first opening 5a in the thermocase 6 is formed in the thermocase 6. Convection the cold air in the freezer compartment (2), and a cold air circulation port (9) for sending to the cooler (3) is formed at the bottom of the freezer compartment (2). The partition wall 10 is provided in the bottom part of the freezer compartment 2, and the partition wall 10 is formed of the heat insulating material 11. The cold air circulation path 12 communicates with the freezing chamber 2, passes through the bottom of the thermo case 6, and is provided to communicate with the cooler 3. The cold air circulation path 12 is provided covered with the heat insulating material 11. The through hole 16 is formed in the bottom part of the thermo case, and the through path 15 is provided through the through hole 16 and the cold air circulation path 12. The defrost heater 13 and the drain 14 are provided at the lower end of the cooler 3. The drain 14 discharges water generated from frost attached to the cooler 3 and water generated from dew in the cold air circulation path 12 to the outside. The door 18 is provided in the front of the freezer compartment 2.

The cool air cooled by the cooler 3 is sent to the duct 5 by the blower 4. The cool air discharged from the first opening portion 5a of the duct 5 passes through the convection port 8, the circulation port 9, and the cold air circulation path 12 of the thermocase 6 in order, thereby cooling the cooler ( 3) is returned. In addition, the cool air in the thermo case 6 passes through the through passage 15 and the cool air circulation passage 12 in order, and is returned to the cooler 3. That is, the cold air in the thermocase 6 has two passages, a passage passing through the circulation port 9 and a passage passing through the through passage 15. On the other hand, the cold air discharged from the second opening portion 5b of the duct 5 convections in the freezing chamber 2, and passes through the circulation port 9 and the cold air circulation path 12 in order, thereby providing a cooler ( 3) is returned. The cool air returned to the cooler 3 is divided into the first opening portion 5a and the second opening portion 5b of the duct 5 and enters the thermocase 6 and the freezing chamber 2, respectively. By measuring the temperature of the cold air in the thermo-case 6 by the temperature sensor 7, the cooler 3 is controlled and the temperature of the cold air cooled by the cooler 3 is controlled. In this way, the temperature of the cold air circulating in the freezing chamber 2 is controlled.

In the above configuration, the water penetrating into the thermo case 6 passes through the through passage 15, is led to the cold air circulation passage 12, and passes through the drain 14, and is discharged out of it. Therefore, the defect that the water which penetrated into the thermo case 6 freezes can be prevented.

In addition, when food or the like is placed in the convection opening 8 of the thermo case 6, the cold air in the thermo case 6 passes through the through passage 15, and the cold air circulation path 12 and the cooler 3 The freezer compartment 2 can be cycled in turn. Therefore, malfunction of the temperature sensor can be prevented, and the temperature of the freezer compartment 2 can always be controlled normally.

In the present invention, a configuration in which a refrigerating chamber is provided below or above the freezing chamber is also possible. Moreover, the structure which is a refrigerator compartment instead of a freezer compartment is also possible.

In the refrigerator of the present invention, when water is spilled near the thermocase, the spilled water is discharged without being frozen. Therefore, freezing of the temperature sensor provided in the thermo case can be prevented, and malfunction of the temperature sensor can be prevented. Even when food or the like is placed in the convection port of the thermocase, convection of the cold air in the thermocase is ensured, and therefore the temperature of the circulating cold air can be controlled to a desired temperature. In this way, the operation of the temperature sensor is always ensured to be normal, and as a result, the temperature of the storage chamber can be controlled accurately.

Claims (12)

A storage room for storing food and having a cold air circulation port; A cooler installed at an end of the storage chamber and for cooling; A duct for distributing cold air cooled by the cooler to a desired portion of the storage compartment; A thermo case installed at a desired position in the storage chamber and having a through hole at a bottom thereof; A temperature sensor installed in the thermo case and configured to control a temperature of the storage chamber; A cold air circulation path communicating with the cold air circulation port of the storage chamber, passing through the bottom of the thermo case, and installed through the cooler; A through passage provided between the through hole of the thermo case and the cold air circulation passage; The cold air entering the storage chamber from the duct passes from the cold air circulation port, passes through the cold air circulation path, and returns to the cooler; The cold air entering the thermo-case exits from the through hole and passes through the cold air circulation path to return to the cooler; When water enters the thermo case, the water is discharged through the passage. The refrigerator according to claim 1, wherein the storage chamber is a freezing chamber for storing the food in a frozen state. The refrigerator according to claim 1, further comprising a blower adjacent to the cooler for circulating cold air cooled by the cooler. The refrigerator according to claim 1, wherein the storage chamber is a freezing chamber, and a refrigerating chamber is further provided adjacent to the freezing chamber. The method of claim 1, wherein the duct has a first opening and a second opening, The first opening communicates with the thermo-case, and the second opening communicates with the storage chamber; The cold air cooled by the cooler enters the thermocase through the first opening, and simultaneously enters the storage chamber through the second opening; And a temperature sensor controls the temperature of the cold air entering the thermo-case, thereby controlling the temperature of the cold air entering the storage compartment. The refrigerator according to claim 1, wherein the thermo case is provided at a bottom of the storage compartment. The refrigerator according to claim 1, wherein the through passage is provided below the storage chamber. The refrigerator according to claim 1, wherein said through passage is provided covered with a heat insulating material. A drain according to claim 1, further comprising a drain located below the through passage and communicating with the cold air circulation passage. And the water in the thermo case is discharged from the drain through the through passage. The method of claim 1, wherein the storage chamber is a freezing chamber; The thermo case is installed at the bottom of the freezer compartment; A through hole of the freezing compartment is formed in the bottom portion of the freezing compartment, and the thermo case is provided above the through hole; The cold air circulation path is installed below the freezing chamber; The duct has a first opening and a second opening, the first opening communicating with the thermocase, and the second opening communicating with the storage compartment; And a temperature sensor controls a temperature of the cold air entering the thermo case, thereby controlling a temperature of the cold air entering the freezing compartment. 11. The apparatus of claim 10, further comprising: a drain located below the through passage and communicating with the cold air circulation passage; The bottom portion of the freezer compartment constitutes a partition wall having heat insulating material; The through passage passes through the insulation material; And the water in the thermo case is discharged from the drain through the through passage. A freezer; A cooler installed in an inner portion of the freezer compartment; A blower for blowing cold air cooled by the cooler; A duct for distributing the cooled cold air; A thermo case installed at the bottom of the freezer compartment; A temperature sensor installed in the thermo case and configured to control a temperature of the freezing compartment; A cold air circulation passage communicating with the freezing chamber and passing through the bottom of the thermo case and installed in the cooler; And a through passage provided through the bottom of the thermo case and the cold air circulation passage.