JP3350492B2 - refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure the quality of food stuffs and improve the handling convenience of a refrigerator by a method wherein the food stuffs to be preserved by refrigeration are divided in accordance with the purpose of preservation. SOLUTION: A first refrigerating chamber 25, equipped with an independent drawer type door 25a, is provided with a first temperature detecting means in the same and a second refrigerating chamber 26, equipped with another independent drawer type door 26a, is provided with a second temperature detecting means in the same while the cold air inlet port of the second refrigerating chamber 26 is provided with a damper device 52. The first temperature detecting means 32 controls a compressor 34 and a fan 36 while the second temperature detecting means 33 controls the damper device 32 to maintain a temperature in the first refrigerating chamber 25 at a value in a relatively low refrigerating temperature band and maintain a temperature in the second refrigerating chamber 26 at a value in a relatively high refrigerating temperature band.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a forced-ventilated refrigerator having a freezer compartment and a refrigerator compartment.

[0002]

2. Description of the Related Art One example of a forced-ventilated refrigerator is disclosed in Japanese Utility Model Laid-Open Publication No. 58-041464.
The configuration will be described below with reference to FIG.

[0003] Reference numeral 1 denotes a refrigerator body, which comprises an outer box 2, an inner box 3, and a heat insulating material 4 filled between the outer box 2 and the inner box 3. Reference numeral 5 denotes a partition wall which partitions the inside of the refrigerator main body 1 up and down. The partition wall 5 is formed by partitioning a freezing compartment 6 at an upper portion and a refrigerating compartment 7 at a lower portion. Reference numeral 8 denotes a compressor of a refrigeration cycle housed at the bottom rear of the refrigerator body 1. Reference numeral 9 denotes a cooler of a refrigerating cycle housed on the back of the freezing room 6, and reference numeral 10 denotes a blower for forcibly blowing the cool air cooled by the cooler 9 to the freezing room 6 and the refrigerating room 7.

[0004] A reference numeral 11 denotes a duct for guiding cool air to the freezer compartment 6 and the refrigerator compartment 7; 12). Reference numerals 13 and 14 denote temperature sensors provided in the freezing compartment 6 and the refrigerating compartment 7, respectively.

[0005] Next, reference numeral 15 denotes a quick freezing compartment defined below the freezing compartment 6. An openable and closable door 16 is provided on a front part, and a metal plate 17 made of, for example, aluminum is provided on a bottom part. Reference numeral 18 denotes a cool air discharge port provided at the rear of the room, 19 denotes a cool air suction port provided at the bottom of the front part of the room, and 20 denotes a quick freeze switch provided at the front of the outer shell of the refrigerator body 1. When the switch 20 is pressed, the compressor 8 and the blower 10 are continuously operated for a predetermined time. 21a and 21b are the freezing room 6 and the refrigerating room 7, respectively.
It is a door that opens and closes the front opening.

The operation of the above configuration will be described below. Normally, the compressor 8 and the blower 10 are turned on and off based on the set value of the temperature sensor 13 provided in the freezing room 6.
The cool air cooled by the cooler 9 is blown by the blower 10 to cool the freezing room 6 and the quick freezing room 15 so as to maintain a constant temperature (for example, −20 ° C.). On the other hand, the cool air blowing by the blower 10 is also performed to the refrigerator compartment 7 through the duct 11, and the cool air inflow is adjusted by the electric damper 12, so that the cooling air is cooled so as to maintain a constant temperature (for example, 4 ° C.).

[0007]

However, in the above configuration, the food is stored in the freezer 6 regardless of the frequency of use during storage.

In recent years, the number of frozen foods has been steadily increasing, and the use of frozen foods at home has also been increasing with the employment of housewives. Food frozen at home is broadly divided into stock-type foods intended for long-term storage by bulk purchase of materials and the like, and stock-type flowable foods that are frequently used and are always stored.

[0009] Since stock-type flowable foods are mainly stored for a short period of time, the storage conditions have little effect on quality, and the usability should be more important than the preservability. On the other hand, since the stock type food is intended for long-term storage, which is infrequently used, it is necessary to prevent quality deterioration during storage, and thus it can be said that temperature control is an important food.

[0010] Since these foods having different purposes are stored in the freezer 6 in a mixed state, the temperature of the stock-type food increases due to frequent opening and closing of the door 21a.
The growth of ice crystals in the food individual is promoted, which promotes the destruction of cell tissues and protein denaturation, thereby deteriorating the food quality. The contact area increases, and oxidation of lipids and pigments is promoted, so that the food quality is further deteriorated. On the other hand, there are many cases where the stock type flowable food is stored above which is difficult to take out, and there is a problem that the back is hard to see and the usability is poor.

The freezer compartment 6 is disposed at the uppermost position, and the door 2
Since the opening / closing method of 1a is a rotary system, there is a disadvantage that cold air having a high specific gravity easily flows out when the door 21a is opened and closed, and at the same time, warm air flows in, so that the temperature in the freezing compartment 6 tends to rise.

SUMMARY OF THE INVENTION In view of the above-mentioned problems, an object of the present invention is to improve the temperature control and the usability of a freezer in accordance with the purpose of preserving food.

[0013]

In order to solve the above-mentioned problems, a refrigerator according to the present invention comprises a refrigerator compartment at an upper portion of a refrigerator main body, and two independent drawer-type freezer compartments at a lower portion of the refrigerator compartment. A damper device is provided at a cold air inlet of the freezing room to control the damper device so as to adjust the amount of cool air inflow, and a large amount of cool air flows into the other freezer room to set the temperature of the two freezer rooms differently. Two freezing temperature zones, the one freezing compartment is kept at a relatively high freezing temperature zone, and the food for the short-term storage such as temporary storage is frozen and stored, and the other freezing compartment is set at a relatively low freezing temperature. Foods intended for long-term preservation are kept frozen and preserved in a belt.

[0014]

Further, a compressor, a cooler, first and second drawer-type freezer compartments, a refrigerating compartment, and cool air cooled by the cooler are refrigerated with the first and second freezer compartments. A blower for forcibly blowing air into the room, a first temperature detecting means provided in the first freezing room for detecting the temperature in the room, and a second temperature provided in the second freezing room for detecting the temperature in the room Detecting means, and a damper device provided at a cool air inlet of the second freezing chamber, wherein the compressor and the blower are controlled by the output of the first temperature detecting means, and the second temperature detecting means The damper device is controlled by the output to
For the purpose of long-term storage, the amount of cold air flowing into the freezer compartment is adjusted, a large amount of cold air flows into the first freezer compartment, and the first freezer compartment is maintained at a relatively low freezing temperature zone. The food is frozen and stored, and the food for short-term storage such as temporary storage is frozen and stored by maintaining the second freezing room in a relatively high freezing temperature range.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention has
Since the cool air having a high specific gravity flows to the bottom of the freezer compartment when the door is opened and closed, the temperature rise in the freezer compartment when the door is opened and closed is suppressed. In addition, foods to be frozen and stored are stored in one freezer compartment for short-term storage such as temporary storage, and stored in another freezer compartment for long-term storage.

The operation of the compressor and the blower in the temperature zone in the freezer compartment for long-term storage is controlled based on the output of the temperature detecting means. During the operation of the compressor, a large amount of cold air is introduced to maintain a relatively low freezing temperature range, thereby suppressing the oxidation of lipids and pigments in food.

Further, in the temperature zone in the freezer compartment for short-term storage, the amount of cool air is adjusted by the damper device based on the output of the temperature detecting means. Then, the temperature is maintained at a relatively high freezing temperature range, and necessary and sufficient cooling is performed on the short-term primary storage food that does not emphasize the preservability.

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIG.

In FIG. 1, reference numeral 22 denotes a refrigerator body,
Reference numeral 23 denotes a partition wall that partitions the inside of the refrigerator main body 22, and is formed by partitioning a refrigerator compartment 24 at an upper portion. Reference numerals 25 and 26 denote first and second freezer compartments, which are drawer specifications, are constituted by upper opening cases 27 and 28, and are independently formed by partition walls 29 and 30.

Reference numeral 31 denotes a vegetable room, 24a, 25a, 2
6a and 31a are the refrigerator compartment 24, the first freezer compartment 25, the second
Of each of the freezing room 26 and the vegetable room 31. 32 is a temperature sensor for detecting the temperature of the first freezer compartment;
Is a temperature sensor for detecting the temperature of the second freezer compartment.

Numeral 34 denotes a compressor of a refrigeration cycle housed at the rear of the bottom of the refrigerator main body 22. Numerals 35 denote refrigeration chambers 25 and 26.
36 is a cooler of a refrigerating cycle housed in the back of the refrigerator, and 36 is a cooler cooled by the cooler 35 for cooling air in the freezer compartments 25 and 26 and the refrigerator compartment 2.
4 is a blower for forced ventilation. Reference numeral 37 denotes a duct for guiding cool air to the refrigerator compartment 24, and reference numeral 38 denotes a damper device (hereinafter referred to as an electric damper 38) provided at the entrance of the refrigerator compartment for adjusting the flow rate of cool air by an electric input. Reference numeral 39 denotes a temperature sensor provided inside the refrigerator compartment 24,
Is a cool air inlet for introducing the cool air cooled by the cooler 37 into the freezing compartments 25 and 26, 50 is a heat insulating material filled in the partition wall of the first freezing compartment 25, and 51 is a heat insulating material. This is a cold air inlet of the first freezing room 25. Reference numeral 52 denotes a damper device (hereinafter, referred to as an electric damper 52) provided at the cool air inlet 41 of the second freezing chamber 26 to adjust the amount of cool air inflow by electric input.

The operation of the above configuration will be described below. Normally, the compressor 34 and the blower 38 are turned on and off based on the set value of the first temperature sensor 32 provided in the first freezing room 25, and the cool air cooled by the cooler 35 is blown by the blower 38. Then, the air is sent to the first freezing room 25 and the second freezing room 26.

At this time, since the amount of cold air flowing into the second freezing compartment 26 is adjusted by the electric damper 52 based on the set value of the second temperature sensor 33, a large amount of cold air enters the first freezing compartment 25. Will be introduced. First freezer compartment 25
Is kept at a low temperature because it is partitioned by the heat insulating material 50. As a result, the food is kept at a low temperature, and oxidation of lipids and pigments of the food can be suppressed, so that the frozen storage quality of the food is improved.

[0025] Foods to be frozen and stored are roughly classified into stock-type foods intended for long-term storage by bulk purchase of materials and the like, and stock-type flowable foods frequently used for short-term storage such as temporary storage. You. Foods intended for long-term preservation need to be temperature-controlled because the quality tends to deteriorate due to temperature fluctuations during storage. Therefore, they are stored in the first freezing room 25 and intended for short-term preservation such as temporary storage. The food can be stored in the second freezer compartment 26.
Since the freezer compartments 25 and 26 are independently partitioned, they are not easily affected by the opening and closing of the respective doors, and the temperature can be easily controlled.

[0026]

As described above, according to the refrigerator of the present invention, the following effects can be obtained.

(1) By storing the food for long-term storage, which is relatively infrequently used, and the short-term food, which is frequently used for temporary storage, in a separate storage, the usability of the freezer compartment is improved. Is improved.

(2) By making a plurality of freezing chambers independent of each other, the freezing chambers are less susceptible to temperature influences from other chambers, and the accuracy of temperature management for each chamber is improved.

(3) By adopting the drawer specification, it is possible to suppress the outflow of cold air when the door is opened and closed, it is easy to overlook the food to the back, and the usability is improved.

(4) The freezing room for long-term storage is maintained at a relatively low freezing temperature range in the room temperature,
The deterioration of food quality due to cell damage due to the recrystallization effect of ice is small, the oxidation of lipids and pigments in foods is suppressed, and the foods can be preserved for a long period of time.

(5) In the freezing room for short-term storage, the room temperature is maintained in a relatively high freezing temperature range, and necessary and sufficient cooling is performed for short-term primary storage food products in which ease of use is more important than storability. Is performed, and reasonable frozen storage can be performed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a refrigerator showing one embodiment of the present invention.

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

[Explanation of symbols]

 25 First freezing room 26 Second freezing room 25a, 26a Pull-out door 32 First temperature sensor (first temperature detecting means) 33 Second temperature sensor (second temperature detecting means) 34 Compressor 35 cooler 36 blower 52 electric damper (damper device)

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) F25D 11/02 F25D 17/06 312

Claims (2)

(57) [Claims] A refrigerator is provided at an upper portion of a refrigerator main body, and two independent drawer-type freezers are provided at a lower portion of the refrigerator, and a damper device is provided at a cold air inlet of one of the refrigerator compartments to control the damper device. And adjusting the temperature of the two freezer compartments to two different freezing temperature zones by flowing a lot of cool air into the other freezer compartment, and setting the one freezer compartment to a relatively high freezing temperature. the food for the purpose of short-term storage, such as interim storage while maintaining the temperature zone cryopreserved, to cryopreservation foods intended for long-term storage while maintaining the other of the freezing chamber to a relatively low freezing temperature zone A refrigerator characterized by comprising. 2. A compressor, a cooler, and a first drawer type.
And a second freezing room, a refrigerator, a blower for forcibly blowing cool air cooled by the cooler to the first and second freezing rooms and the refrigerator, and a room provided in the first freezing room. First temperature detecting means for detecting the temperature of the second freezing chamber, second temperature detecting means for detecting the temperature of the room provided in the second freezing compartment, and a damper provided at a cold air inlet of the second freezing compartment. Device, the compressor and the blower are controlled by the output of the first temperature detecting means, and the damper device is controlled by the output of the second temperature detecting means to cool the second freezing compartment. Adjusting the inflow amount, allowing a lot of cold air to flow into the first freezing room, keeping the first freezing room at a relatively low freezing temperature zone, and cryopreserving food for long-term storage, Temporary storage while maintaining the second freezing room at a relatively high freezing temperature zone Refrigerator, characterized in that it has been configured to freeze save the food for the purpose of the period save.