JPS60159575A - 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] [Technical Field of the Invention] The present invention is capable of preserving various foods at appropriate temperatures.
The present invention relates to temperature-type refrigerators, and in particular to cooling and temperature control of ice chambers.

[Prior art]

Figures 1 and 2 show a conventional example shown in Japanese Utility Model Application Publication No. 55-54874, in which a freezer compartment (11) and a refrigerator compartment (2
1. It consists of an ice room (low temperature case 4) located above the vegetable room (31) and the refrigerator room (2).
In the refrigerator, the cold air cooled by the cooler (51) or the fan (6) circulates and cools the freezer compartment fi+.

Cold air controlled by a single temperature control device (7) is circulated through the refrigerator room (2), ice room (4), and vegetable room (3).

Therefore, the temperature of the cold storage room (21), ice room (4), and vegetable silkworm f3+ is determined by the wind cover set in advance on the back duct (8), and the temperature of each room is not controlled independently. The ice room (4), which is controlled by the temperature of the refrigerator compartment (2) and therefore requires particularly precise temperature control, is also affected by the temperature of the refrigerator compartment (2), and is affected by the strength of the refrigerator compartment temperature. It had the disadvantages of being too cold and being too expensive.

[Overview of the invention]

The purpose of the present invention is to eliminate the above-mentioned drawbacks, and in particular, in order to improve the preservation of food in the icehouse, the icehouse is made independent and a dedicated cooler is installed for precise temperature control. The purpose of this project is to provide a refrigerator that performs the following functions.

[Embodiments of the invention]

The following is a detailed explanation of the present invention based on two illustrated embodiments. In Figure 1, fi+ is a freezer compartment with a frozen storage function located at the top of the refrigerator; , 'M, +51 is a cooler, and the cold air cooled here is distributed to the freezer compartment (1) and the refrigerator compartment (2) by a fan f61K. (9) is the refrigerator compartment air outlet, and α1 is the freezer compartment suction port.
Each of these is provided in the following. Also, the above refrigerator room (2)
The cold air is kept at an appropriate temperature by the buckle surface (7b) of the temperature control device (7), which opens and closes with the temperature sensing part (7a) that reacts with the cold air blown out from the back duct of the refrigerator compartment. It has become.

(Iz is an independent ice room where meat, fish, etc. are kept at a temperature close to 0℃, so-called on the verge of freezing. Q3) is a temperature control device that controls the temperature of this ice room. The switching control valve US'4, such as a three-way solenoid valve, in the refrigerant circuit to the ice room cooler α barrel is opened and closed. For example, when the temperature of the temperature sensing part Q41 in the temperature control device 6 is higher than the set temperature, the switching control valve α9 is energized and opened, and the refrigerant flows into the icehouse cooler. αzt cooled,
Conversely, when the temperature becomes lower than the set temperature, the switching control valve a9 is closed and the refrigerant is controlled. ! Samurai explained that in the electrical circuit diagram shown in Figure 7, the continuous operation and stopping of the compressor αη is determined by the temperature control device αe in the freezer compartment (1).
When the temperature control device 1tae is in operation, when the temperature of the icehouse temperature control device (I7) is higher than the set temperature, the switching control valve ω is energized to flow the refrigerant to the icehouse cooler Ql.

The freezing room (1), the refrigerator room (2), and the cooling cooler (5) are further reduced in pressure by the capillary tube (2) provided with a constrictor, and the temperature is lowered by υ compared to the ice room cooler side.

In addition, some of the cold air cooled by the ice greenhouse cooler eel has an ice temperature,
Cold air inlet c on the back of the vegetable compartment partition board UD! Vegetable room +
31, cools the vegetable compartment (3) and connects it to the front suction port (
From c), return to the ice greenhouse α area.

FIG. 6 shows a second embodiment of the present invention, in which an ice room cooler section is provided on the back of the ice room O3.

- It is a system that forcibly cools the icehouse az using the icehouse fan 11, and a part of the cold air flows into the back duct C24 of the icehouse, and the duct terminal is opened to the back of the vegetable room (31). As shown in FIG. 7, the ice greenhouse fan is operated and stopped in conjunction with the opening and closing of the ice greenhouse temperature control device αj. The circulated cold air is controlled by a shutter (c) that increases or decreases the air temperature of the suction hole (c) in the front section of the vegetable compartment partition plate Cl1l, and is returned to the icehouse az and sucked into the icehouse cooler a8. be caught.

〔Effect of the invention〕

As described above, in the present invention, the cold air cooled by the cooler is
A fan blows out the air from the freezer compartment outlet to cool the freezer compartment to -18°C, while a portion of the cold air passes through the duct at the back of the freezer compartment and is opened and closed by the temperature sensing part of the refrigerator compartment temperature control device. The air is blown out from the refrigerator compartment air outlet, and the refrigerator compartment is
Control around c. In addition, inside the icehouse, the refrigerant switching control valve is switched at a small temperature depending on the temperature of the temperature sensing part of the icehouse temperature control device, so that the refrigerant flows to the icehouse cooler. Obtains freezing temperature.

Furthermore, since the cold air cooled by the icehouse cooler is forced to circulate inside the icehouse using the icehouse fan, it is possible to create a uniform ice temperature zone throughout the icehouse.

In addition, because we introduced some of the cold air from the icehouse into the vegetable compartment located below the icehouse, the temperature was lower than that achieved by introducing cold air from 9 rooms in the conventional method. It also has many benefits, such as lowering the temperature and improving the shelf life of vegetables.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional refrigerator J-ton, FIG. 2 is a vertical sectional view of FIG. 1, FIG. 3 is a front view of a refrigerator showing an embodiment of the present invention, and FIG. Longitudinal cross-sectional view. FIG. 5 is a refrigerant circuit diagram according to the present invention, FIG. 6 is a partial blood cut diagram showing a second embodiment of the present invention, and FIG. 7 is an electric circuit diagram of FIG. 6. In addition, the tree code in Figure 1 indicates time-1 or a corresponding part,
(1) is the freezer compartment, (2) is the refrigerator compartment, (3) is the vegetable compartment, (
5) is a cooler, (71F': J-refrigerator room temperature fff control device, α2 is an ice room. (13+ is a freezer room temperature control @j device, (1) refrigerant switching control valve. Ql is ice room temperature control Equipment, QB is ice chamber cooler, H
is an ice greenhouse fan, (Foundation) is a duct on the back of the ice greenhouse, and (C) is closed by a shutter. Daikonjin Hitoiwa Masuo Figure 3 Figure 4

Claims (5)

[Claims] (1) Refrigeration room equipped with a freezer compartment suitable for freezing food storage, a refrigerator compartment suitable for refrigerated storage, a vegetable compartment, and an ice greenhouse suitable for storing food at freezing temperatures: , a cooler for cooling the refrigerator compartment and a cooler for cooling the icehouse are provided in the freezer compartment and the icehouse, respectively, and 1 At of refrigerant is supplied to the cooler for the icehouse.
A refrigerator characterized in that it is controlled by a Y ice temperature control device. (2) A throttling mechanism such as a capillary tube is connected between a cooler for cooling a freezing room or a refrigerator room, and a cooler for an ice room, and the refrigerant flow is controlled by a temperature control device of the ice room. Refrigerator according to item 1. (3) A fan is attached to the icehouse cooler to circulate cold air to cool the icehouse, and an icehouse temperature control device controls the refrigerant flow and the fan operation. Refrigerator according to item 1. (4) A patent claim characterized in that a part of the cold air from the ice room cooler is introduced through the cold air inlet on the back of the ice/vegetable compartment partition plate, and the returned cold air is communicated to the front air passage of the ice room. Refrigerator according to item 1 in the range. (5) A shutter is provided to introduce a portion of the cold air from the ice greenhouse cooler into the vegetable compartment through the rear cold air duct and to increase or decrease the size of the front ventilation hole of the ice temperature/vegetable compartment partition plate;
The refrigerator according to claims 1 and 3, characterized in that the amount of cold air returned is controlled.