JPS63116077A - Refrigerator - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a refrigerator of the forced draft type, which is equipped with a cold room provided with an independent door in addition to a freezer compartment and a refrigerator compartment.

Conventional technologyIn order to preserve the freshness of fresh foods such as cans, fish, and meat, household refrigerators have an independent door separate from the conventional refrigerator compartment, and the temperature can be controlled independently using a dedicated damper thermometer, etc. The use of low-temperature chambers is becoming mainstream. An example of this will be explained below with reference to FIGS. 3 and 4. In the figure, 1 is the refrigerator body, outer box 2. It is composed of an inner box 3 and a heat insulating material 4 filled between these two boxes 2 and 3.

Reference numeral 6 denotes a first partition wall, which constitutes a cooling chamber 8 containing a cooler 6 and a blower 7 for forced ventilation, and a freezing chamber 9 formed in the upper part. Reference numeral 10 denotes a second partition wall, which is located below the first partition wall and defines a refrigerating chamber 11 in its lower part. Reference numeral 12 denotes a cold room partitioned between the first partition wall 5 and the second partition wall 1o, and is equipped with an independent dedicated door 13. 14, the cold air cooled by the cooler 6 is sent to the freezer compartment 9 by the blower 7. Refrigerator room 11. This is a duct for leading to the cold room 12. 15 and 16 are the refrigerating compartments 11 of the duct 14, respectively. This is a damper thermostat installed at the entrance of the cold room 12 for adjusting the amount of cold air. Also, 17.
Reference numeral 18 denotes a control panel that houses the damper thermos 15 and 16. Reference numerals 19 and 20 are cold air discharge passages formed in the control panel 16 to communicate with the damper thermometer 16 and open to the refrigerator compartment 11, and 21 to be formed on the bottom surface of the first partition wall 5. This is a cold air discharge air path that communicates with the damper thermostat 16 and leads to the front of the top surface of the low temperature chamber 12. 22 is the cold air discharge air passage 2
1 is a cold air discharge port opening into the cold room 12 at the front surface of the cold room 12. Reference numeral 23 designates a cold air return air path of the refrigerator compartment 11, which communicates with the inside of the cooling compartment 8 through both side walls of the low temperature compartment 12. Further, 24 is a cold air suction port for the cold air returned from the low temperature chamber 12, which communicates directly with the inside of the cooling chamber 8.

In this configuration, the cold air cooled by the cooler 6 is sent to the freezer compartment 9 through the duct 14 by the blower 7, and after being controlled to an appropriate amount by the damper thermometer 15, the cold air is sent to the cold air discharge path 19.
．． 20 to the refrigerator compartment 11, and further to the damper thermostat 16.
After being controlled to an appropriate amount, the cold air is discharged from the cold air discharge port 22 through the cold air discharge air path 21 mainly in the front of the cold room 12 . The refrigerator compartment 11 is kept cooled to a temperature range of 0.degree. C., and the low-temperature room 12 is kept cooled to a temperature range suitable for preserving fresh foods (for example, -3 to 0 degrees Celsius). Here, the reason why the cold air outlet 22 of the cold room 12 is concentrated at the front is because the temperature distribution at the front of the room is high due to the influence of outside heat entering from the door 13. Since temperature unevenness occurs in different directions, cooling is concentrated on the front, where the temperature is higher, to correct this.

Problems to be Solved by the Invention However, in such a configuration of the low temperature chamber 12, the freshness preservation temperature is limited to, for example, partial freezing (approximately -
3℃) can be adjusted to chilled (approximately 0℃), but it can only provide a freshness preservation function that is limited to one temperature range at any given time, and for example, if set to partial freezing, chilled foods are at risk of freezing. On the other hand, if it is set to chilled, the freshness will be lower than when storing fish and meat in a micro-freeze state using partial freezing. There was a lack of freedom.

The present invention solves the above-mentioned conventional problems, and aims to expand the degree of freedom in selecting foods to be stored in a cold room and improve usability.

Means for Solving the Problems In order to solve the above-mentioned problems, the present invention divides the low temperature chamber into upper and lower parts by partition plates, and partitions the lower part by providing an inner door on the front. A second cold room is constructed in the lower tier, and each of these two rooms is equipped with its own independent damper thermostat. Then, a door shelf is provided in the first low temperature chamber facing in front of the inner door of the second low temperature chamber at the lower stage, and a cold air inlet is provided in front of the top of the first low temperature chamber. The returned cold air is configured to flow into the cold air suction port through the inner door.

Function: With the above-described configuration, the present invention can individually control the temperature of the upper and lower two chambers that partition the low-temperature chamber by using respective damper thermoses. Moreover, the returned cold air from the second cold room acts on the door shelf through the inner door, and cooling of the door shelf is also promoted.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to FIGS. 1 and 2. Incidentally, the same configurations as those of the prior art are denoted by the same reference numerals, detailed explanation thereof will be omitted, and only the different parts will be described.

In the figure, 25 is a second partition wall located below the first partition wall 6, and a refrigerating room 26 is defined at the bottom of the second partition wall. 27 is a cold room for Ml, and 28 is a second partition wall. A space 7' (a second cold room) is formed at the lower part of the first cold room 27, and the space between the first partition wall 5 and the second partition wall 250 is divided into upper and lower parts by a partition plate 29. Further, 3o is an inner door provided at the front opening of the second low temperature chamber 28, and a space pJ s Oa is formed around its outer periphery.The partition plate 29 and the inner door 3o allow the first low temperature Room 27 and 2nd
The cold room 28 is divided into sections. and 31 is the first
31a is an outer door attached to the main body 1 facing the partner of the cold room 27 and the second cold room 28, and 31a is a door provided inside this outer door 31 so as to face the front of the inner J3so. It's a shelf. Next, the cold air 32 cooled by the cooler 6 is sent to the freezer compartment 9 by the blower 7. Said refrigerator compartment 26. First cold room 2
7. These are ducts for leading to each room of the second cold room 28, and 33 and 34 degrees 35 are the refrigerating room 26 of the duct 32, respectively. First cold room 27. This is a damper thermostat installed at the entrance of the second cold room 28. 36 is a control panel that houses the above-mentioned da/)' knee thermostat 33 and is attached to the rear of the above-mentioned refrigerator compartment 26; 37 is a control panel that houses the above-mentioned damper thermostat 34;
．． 35 is housed therein, and is attached to the rear of the first cold room 27 and the second cold room 28. 38
．． Reference numeral 39 denotes a cold air discharge air passage formed in the control panel 36 and communicating with the damper thermostat 33, and the tip thereof is open into the refrigerator compartment 26. 4o is the first
A first cold air discharge air passage formed on the bottom of the partition wall 6 of
The first cold room 2 communicates with the damper thermo 34.
It is led to the front of the top of No.7. Reference numeral 41 denotes a first cold air discharge port which is concentratedly opened at the front surface of the first cold air discharge air passage 4o. Further, 42 is a cold air discharge air passage of 6 M2 formed integrally with the partition plate 29, communicating with the damper thermostat 35, and leading to the front of the top of the second cold room 28. A second cold air discharge port is opened in a concentrated manner at the front surface of the second cold air discharge air passage 42 . 44 is a cold air discharge air path of the refrigerator compartment 26, and the first cold room 27
and the inside of the cooling chamber 8 (in communication) through both side walls of the second cold room 28. 46 is a cold air inlet of the return cold air of the first cold room 27, which is directly connected to the cooling chamber 8. .

In such a configuration, the cold air cooled by the cooler 6 is controlled to an appropriate amount by the damper thermometer 33 to the freezer compartment 9 through the duct 32 by the blower 7, and then to the cold air discharge air path 38.3.
9f to the refrigerator compartment 26, and after being controlled to an appropriate amount by the damper thermometer 34, the first cold air discharge air path 40'f! : The cold air is discharged from the first cold air outlet 41 into the first cold room 27 , and after being controlled to an appropriate amount by the damper thermometer 36 , the cold air is discharged through the second cold air outlet 42 through the second cold air outlet 4 .
3 is discharged into the second cold room 28. Thereafter, the cold air that has cooled the refrigerator compartment 26 is returned to the cooling compartment 8 via the cold air discharge air path 44, and the cold air that has cooled the first cold room 27 is returned to the cooling compartment 8 through the cold air intake port 46. The cold air that has cooled the second cold room 28 flows out through the gap 30a formed on the outer periphery of the inner door 30 provided at the front to the front inside of the first cold room 27, cooling the door shelf 31a and leaving the outside while cooling the door shelf 31a. The air rises along the inner surface of the door 31, joins the cold air suction port 46, and is returned to the cooling chamber 8. In this way, the first cold room 27 and the second cold room 28
The temperature is individually controlled to suit the suitability of the stored food (for example, partial freezing at about -3°C and chilling at about 0°C).

Effects of the Invention As is clear from the above explanation, according to the present invention, the following effects can be obtained.

(1) The low-temperature chamber is divided into two rooms, each of which can be controlled independently, so each room can be temperature-divided according to the temperature suitability of the fresh food using the concave circle of the preservation temperature range, expanding the range of food storage. At the same time, storage at the optimum temperature increases both freshness and safety.

(2) The convection cooling effect of the return cold air through the inner door of the second cold room promotes the cooling of the door shelf, where the temperature normally tends to be high, and suppresses the temperature rise of the stored food.

(3) A simple and inexpensive air path configuration is achieved because the inlet of the first cold room on the upper stage is shared without providing a special return air inlet and return air path for the second cold room.

[Brief explanation of the drawing]

FIG. 1 is a longitudinal sectional view of a refrigerator showing an embodiment of the present invention, FIG. 2 is a front view of the refrigerator shown in FIG. 1, FIG. 3 is a longitudinal sectional view of a conventional refrigerator, and FIG. FIG. 4 is a front view of the refrigerator shown in FIG. 3; 5...First partition wall, 6...Cooler,
7...Blower, 8...Cooling room, 9...
...Freezing room, 26...Second compartment wall, 26
...Refrigerating room, 27...First low temperature room,
28...Second cold room, 29...Partition plate, 30...Inner door, 31...Outer door, 3
1a... Door shelf, 32... Duct, 33
．． 34.35... Damper thermo, 45...
...Cold air intake. Name of agent: Patent attorney Toshio Nakao and one other person J-
1st 2 dishes-1 8-Ishi vI Kari 6-Kishi Sosa
J -1" Ltiq - Refrigeration work 31 - Outer door? 5 - Second wa moromi 3fll on the other hand n aichi 8!
Ah, 34 Yog9＼°-Boomo Figure 3

Claims (1)

[Claims] a first partition wall comprising: a freezing compartment formed in the upper part of the main body; a refrigerating compartment formed in the lower part of the main body; a cooling compartment provided at the lower part of the freezing compartment and accommodating a cooler and a blower for forced ventilation; a second partition wall provided at the upper part of the refrigerator compartment; and a first low temperature temperature formed on the upper part by a partition plate that is formed between the first partition wall and the second partition wall and partitions the inside into upper and lower parts. a second cold room formed at the lower part of the partition plate and partitioned by an inner door provided at the front opening thereof, and facing the fourth cold room and the second cold room. a duct that guides cold air cooled by the cooler to the freezer compartment, the refrigerator compartment, the first cold room and the second cold room; Cold room and second
damper thermos provided at the entrances of each of the cold rooms to adjust the amount of cold air; a door shelf facing in front of the inner door of the second cold room and provided inside the outer door; and a door shelf of the first cold room. a cold air intake port provided at the front of the top surface and communicating with the cooling chamber;
The refrigerator is configured such that the return cold air from the second cold room flows into the cold air suction port through the inner door.