JPS63180058A - Refrigerator - Google Patents

Abstract

(57) [Summary] 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 technology In recent years, in order to preserve the freshness of fresh foods such as fish and meat, household refrigerators have been equipped with an independent door separate from the conventional refrigerator compartment, and the temperature can be controlled independently using a dedicated damper. The mainstream is becoming more and more popular. An example thereof will be explained below with reference to FIGS. 6 and 6. In the figure, reference numeral 1 denotes a refrigerator body, which is composed of an outer box 2, an inner box 3, and a heat insulating material 4 filled between the two boxes.

Reference numeral 5 denotes a first partition wall, which constitutes a cooling chamber 8 in which a cooler 6 and a blower 7 for forced ventilation are housed, and defines a freezing chamber 9 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. Reference numeral 14 denotes a duct through which the blower 7 guides the cold air cooled by the cooler 6 to the freezer compartment 9, refrigerator compartment 11, and low temperature room 12. Reference numerals 15 and 16 are damper dampers provided at the entrances of the refrigerating chamber 11 and the cold room 120 of the duct 14, respectively, for adjusting the amount of cold air. Also, 17.
Reference numeral 18 denotes a control panel housing the damper momos 15 and 16.

Reference numerals 19 and 20 are cold air discharge passages formed in the control panel 16 and communicating with the damper momo 15 and open to the refrigerator compartment 11; 21 is a cold air discharge passage formed on the bottom surface of the first partition wall 5; This is a cold air discharge air path that communicates with the damper momo 16 and leads to the front of the top surface of the low temperature room 12. Reference numeral 22 denotes a cold air discharge port opening into the cold room 12 at the front of the cold air discharge air passage 21 . 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 returning cold air from the low temperature chamber 12, and is directly connected to the cooling chamber 8.
It communicates within.

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 momo 16, the cold air is sent to the cold air discharge path 19.
, 20 to the refrigerator compartment 11, and further to the damper momo 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 maintained at a refrigerated temperature range, and the low-temperature room 12 is kept cooled at a temperature range suitable for preserving fresh food (for example, -3°C to 0°C). Here, the cold air discharge port 22 of the low temperature room 12
The reason why the temperature is mainly concentrated in the front is that the temperature distribution in the front of the room is high due to the influence of outside heat entering from the door 13, etc.
Because temperature unevenness occurs in the front and rear directions throughout the room, cooling is focused on the front, where the temperature is high, to correct the sagging.

Problems to be Solved by the Invention However, in such a configuration of the cold room 12, the freshness preservation temperature is set to, for example, partial freezing (approximately -3
°C) or chilled (approximately 0 °C), but it can only provide a freshness function that is limited to one temperature range at any given time; for example, if you set it to partial freezing, chilled foods will freeze. Due to the danger, it cannot be stored, and on the other hand, if it is set to chilled, there is a disadvantage that 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 divides the lower part by providing an inner door on the front. A first low temperature room and a second low temperature room are configured in the lower tier, and each of these two rooms is provided with its own independent damper momo. And the first one on the top row
The cold air discharge air passages of the cold room and the second cold room on the lower stage are formed with heat insulating material on the side walls, and the cold air discharge air passage of the cold room is formed through the opening in front of the top of the first cold room and inside the outer door. The air passage provided at the front of the top and the opening in the front of the lower surface of the second cold room are communicated, and the opening in the front of the top and the air passage in the outer door are connected, and the opening in the front of the bottom and the air passage in the outer door are connected, respectively. A sealing member for sealing is provided on the outer door.

Function: With the above-described configuration, the present invention adjusts the amount of cold air discharged to the upper and lower chambers that partition the low-temperature chamber using respective dampers. Temperature control is performed independently without being influenced by each other by recovering cold air after cooling through a cold air discharge air path formed by an opening in the outer door and an opening in front of the top of the cold room.

EXAMPLE An example of the present invention will be described below with reference to FIGS. 1 to 4. In addition, the same reference numerals are used for the same configuration as before.
The detailed explanation 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 5, and a refrigerating room 26 is partitioned at the lower part of the second partition wall 25. .

27 is a first cold room, 28 is a second cold room formed at the lower part of this first cold room 27, and the first partition wall 6
The space between and the second partition wall 25 is divided into upper and lower parts by a partition plate 29. Further, 30 is the second cold room 2
The first cold room 27 and the second cold room 28 are separated by an inner door 30 provided at the front opening of the partition plate 29. and 31 is the first cold room 27
and an outer door attached to the main body 1 opposite to the second cold room 28. Next, the cold air 32 cooled by the cooler 6 is sent to the freezer compartment 9 by the blower 7. The ducts 33, 34, and 35 lead to the refrigerating room 26, the first cold room 27, and the second cold room 28 of the duct 32, respectively. 27, a damper momo installed at the entrance of the second cold room 28. 36 is a control panel that houses the damper momo 33 and is attached to the rear of the refrigerator compartment 26; 37 is a control panel that houses the damper momo 33;
．． 35 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 momo 33, the tip of which is open into the refrigerator compartment 26. 40 is the first
A first cold air discharge air path formed on the bottom surface of the partition wall 6 communicates with the damper momo 34 and connects to the first cold room 27.
It is guided to the front of the top. Reference numeral 41 denotes a first cold air discharge port which is concentratedly opened in the front part of the first cold air discharge air passage 40 .

Further, reference numeral 42 denotes a second cold air discharge air passage formed integrally with the partition plate 29, which communicates with the damper momo 36 and is guided to the front of the top surface of the second cold room 28. Reference numeral 43 denotes a second cold air discharge port which is concentratedly opened in the front part of the second cold air discharge air passage 42 . 44 is the first cold room 2
7 and the cold air return air path of the second cold room 28, which is formed between the heat insulating material 46 and the cover 46 on both side walls of the first cold room 27 and the second cold room 28. and communicates with the cooling chamber 8. Reference numeral 47 denotes a cold air suction port that opens toward the inside of the first cold room 27 above the cold air return air passage 44 of the first cold room and the second cold room. Reference numeral 48 denotes a cold air suction port that opens toward the inside of the second cold room 28 below the cold air return air passages 44 of the first cold room and the second cold room.

49 is a first opening provided in the front of the top surface of the first partition wall 6 that communicates with the cooler 8, and 60 is a door air passage provided in the outer door 31. Reference numeral 51 denotes a second opening provided at the front of the bottom surface of the second partition wall 25. 62 is the first opening 49, the door air passage 6o, the second opening, and the 27.
The sealing member is attached to the inner plate 64 of the outer door 31 and seals the low temperature chamber 28 by contacting the outer edge of the low temperature chamber.

In this configuration, the cold air cooled by the cooler 6 is passed through the duct 32 by the blower 7 to the freezer compartment 9, and after being controlled to an appropriate amount by the damper momo 33, the cold air is passed through the cold air discharge air path 38.
．． 39 to the refrigerator compartment 26, and the damper momo 34
After being controlled to an appropriate amount by the damper momo 36, it is discharged into the first cold room 27 from the first cold air outlet 41 through the first cold air discharge air path 4o, and further controlled to an appropriate amount by the damper momo 36.
A second cold air discharge port 43 through a second cold air discharge air passage 42
It is then discharged into the second cold room 28. After cooling the first cold room 27, the cold air is sent to the first cold room and the second cold room through the cold air inlet 47 which is opened facing into the first cold room 27.
The cold air is returned to the cooling room 8 through the cold air discharge path 44 of the cold room. Moreover, the cold air after cooling the second cold room 28 is passed through the cold air suction port 48 which faces into the second cold room 28, and the cold air return air path 44 of the first cold room and the second cold room. is returned to the cooling chamber 8 through the cooling chamber 8. After cooling the refrigerator compartment 26, the cold air flows through a second opening 61 provided in front of the bottom of the second partition wall 26 and communicating with each other, and a door air passage 6 provided in the outer door 31.
0, first opening 4 provided in front of the top surface of the first partition wall 5
9 and returned to the cooling chamber 8. Therefore, the intrusion of outside heat from the outer door 31 is reduced by the return air passage 60 of the door 31 and the seal member 62, and the temperature distribution in front of the cold room 27, 28 is made uniform.

In this way, the first cold room 27 and the second cold room 28 are kept at a temperature within a temperature range suitable for preserving fresh food (e.g. -3 to 0''C) that matches the suitability of the stored food (e.g. about - 3°
Temperature control is performed individually for partial freezing at 0°C and chilling at approximately 0°C.

Effects of the Invention As is clear from the above explanation, according to the present invention, the low-temperature chamber is divided into two chambers, and the amount of cold air discharged is controlled by each damper, the upper and lower two chambers are attached to the side walls, and the cold storage chamber is divided into two chambers. The return cold air is collected from the opening at the front of the bottom of the room to the inside of the outer door and the opening at the front of the top of the low-temperature room through the well-structured cold air return air passages, allowing highly accurate independent temperature control. Each room can be temperature-divided within the freshness preservation temperature range according to the temperature suitability of fresh foods, expanding the range of food storage, and improving freshness and safety by storing food at the optimal temperature.

[Brief explanation of the drawing]

FIG. 1 is a plan sectional view of essential parts of a refrigerator showing an embodiment of the present invention, FIG. 2 is a vertical sectional view of essential parts of the refrigerator, FIG. 3 is a vertical sectional view of the same refrigerator, and FIG. Figure 3 is a front view of the refrigerator, Figure 6 is a vertical sectional view of a conventional refrigerator, and Figure 6 is the same
FIG. 2 is a front view of the refrigerator shown in FIG. 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, 3o...Inner door, 31...Outer door, 32
......Duct, 33.34.36...-Damper momo, 44...Cold air return air path of the first cold room and second cold room, 45... ...Insulation material, 49
...First opening, eio...Door air passage, 51...Second opening, 62...Seal member, 64... ...Inner board. Name of agent: Patent attorney Toshio Nakao and 1 other person5-
1st ward, #Jpe 8- ;shi ErI Kan 5- ・-1 Rei 2 East 1j:: 1234 2g-1 Atsushi 2 partition wall Fig. 5 Fig. 6

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 first cold room and the second cold room. an outer door provided therein; 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; and the refrigerator compartment and the first low temperature of the duct. damper momos provided at the entrances of the room and the second cold room to adjust the amount of cold air; a cold air return air path of the cold room No. 2; a first opening provided in front of the top surface of the first partition wall; a door air path formed in the outer door; and a door air path provided in front of the bottom surface of the second partition wall The first opening provided in front of the top surface of the first partition wall, the air passage formed in the outer door, and the bottom surface of the second partition wall are connected to each other. The second opening provided in the front and the air passage formed in the outer door are connected to the first opening,
A refrigerator comprising a return air path of the refrigerator compartment formed by a sealing member provided on the outer periphery of the inner plate of the outer door on the first and second cold room sides to seal with the second cold room.