JPH0289975A - Controller for freezing 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 Industrial Application] The present invention relates to a control device for a refrigerator-freezer using a forced cold air circulation system, and particularly relates to temperature control of a cold storage chamber at the end of quick freezing.

[Conventional technology]

Figure 3 shows a schematic configuration of a conventional refrigerator-freezer disclosed in, for example, Japanese Patent Application Laid-Open No. 62-233665. In Figure 1, (1) is the refrigerator-freezer main body, (2) is the main body (1)
In the freezer compartment formed inside.

It is also used as a quick freezing room. (3) is a refrigerator room.

(4) is a chilled room, (5) is a vegetable room, (6) is a pressure inspection machine,
(7) is a cooler installed at the rear of the freezer compartment (2), (8
) is a blower that forcibly circulates the cold air cooled by the cooler (7), (9) is an electric damper that controls the amount of cold air flowing into the refrigerator compartment (3), and 011 is the amount of cold air flowing into the chilled compartment (4). The electric damper (GJ) that controls the temperature detection element (P sensor) installed in the freezer compartment (2),
) K is the temperature detection element (R sensor) provided, 0 is the temperature detection element (0 sensor) provided in the chilled chamber (4) to'
is the operation panel, and (to) is the control section. Also, FIG. 4 is a block representing the configuration of an electric circuit, (14a)
(
14b) is the start of rapid freezing.

An operation section that allows you to arbitrarily set the termination and a quick freezing operation section that serves as a small display section, (15g) is a microcomputer with an A/D conversion function, and (xsb) is a program for the microcomputer (15a) that is stored. There is R
OM, (15c) is a microcomputer (15
The RAM (15d) in which the calculation result in a) is stored is a drive circuit that operates based on instructions from the microcomputer (15a), (15e), (15f) e(1
5g), (15h) is the relay controlled by the drive circuit (4sd) (XSt) is the electric damper (9),
This is an open/close judgment circuit that detects the position of (a). Next, the operation will be explained. Input of set temperature operation unit (14-), F sensor Ql) R sensor (2), and C sensor 0
The inputs are read according to the program stored in the microcomputer (1sa), the set temperature of the freezer compartment (2) is compared with the temperature of the P sensor (b), and the compressor (6) and blower are Also determines the driving of. Refrigerator (
3), and the electric damper (9) in the chilled chamber (4) in the same way.
), C11). This control allows the freezer compartment (
2) Refrigeration (3) and chilled room (4) are regulated by 11 degrees K to maintain the temperature set by the user.
Since the above operation is a well-known operation, details will be omitted.

Next, the operation of the quick freezing operation will be explained with reference to the flowchart of FIG. 2. Step (100)
, press the quick freezing operation section (14b) on the operation panel (b).
) Okay, it is determined whether or not there is an input for quick freezing, and when it is determined that there is no input, the process proceeds to step (101);
It is determined whether quenching is currently in progress, and if quenching is in progress, the process proceeds to step (104). If there is an input for quick freezing in step (100), step (102)
).

In step (102), it is determined whether quenching is in progress, and if quenching is not in progress, the process proceeds to step (103).
3) In step (104), the rapid cooling is set to F 乍°1" and the FDAM explosion is set to 1°. In step (104), it is determined whether FDAM?=1 and FDAMP\
If it is 1, proceed to step (107) and FDA
If MF:1 is found, proceed to step (105). In step (105), electric damper f91. Qj)
Open it and proceed to step (106). Step (10
6), the internal temperature of the refrigerator compartment (3) and the internal temperature of the chilled compartment (4) are 4°0 below the corresponding set temperature.
If it is low, proceed to step (107); conversely, if it is high, proceed to step (108). In step (107), the electric damper (9) and QO are closed, and FDAMF
(: "O" and proceed to step (108). In step (108), if a certain period of time has not elapsed since the start of rapid freezing, proceed to step (110) and in step (110), the compressor (6 ) and blower (8)
Drive and return to main. On the other hand step (108)
If a certain period of time has elapsed in step (109)
Proceed to ←°0' and end the rapid freezing operation mode.

[Problem to be solved by the invention]

Since the conventional refrigerator-freezer control device is controlled as described above, the refrigerator compartment (3) is used during quick freezing.

The temperature inside the chilled compartment (4) has risen and the refrigerator compartment (
3) There were problems such as additives which deteriorated the quality of the food stored in the chilled room (4), and the user might feel that the food was not cool enough.

This invention was made to solve the above-mentioned problems, and it is possible to operate the compressor and blower depending on the internal temperature of the refrigerator compartment and chilled compartment after quick freezing is completed.
Another object of the present invention is to obtain a refrigerator-freezer control device that can keep the set temperatures of the refrigerator compartment and the chilled compartment low for a certain period of time and quickly bring them closer to the set temperatures.

[Means to solve the problem]

A control device for a refrigerator-freezer according to the present invention includes a blower that forcibly supplies cold air cooled by a cooler that forms a refrigeration cycle with a compressor to a freezer compartment and other cooling compartments; In a refrigerator equipped with a damper that controls the supply amount of I! at the end of quick freezing. The apparatus is equipped with a control means for comparing the temperatures of the cooling chambers described in IJ and other cooling chambers with respective set temperatures to determine the operation of the compressor and the feeder and the opening and closing of the damper.

[Effect]

In this invention. Refrigerator control equipment.

At the end of quick freezing, if the temperature difference between the internal temperature of the refrigerator compartment and chilled compartment and the corresponding set temperature is more than a certain temperature, the electric damper of the refrigerator compartment and chilled compartment will be opened and the set temperature of each will be lowered by a certain temperature. Operate the compressor and blower for a certain period of time.

〔Example〕

This invention differs from the conventional one in that the micro combinator (1sb) stored in the micro combinator (15-)
) program and the rest.

Since everything is the same as the conventional one, the explanation will be omitted.

Next, the operation will be explained according to the schematic flowchart shown in FIG.

Here, 8UBO1 indicates the end of quick freezing.
BO2 indicates the normal case. First, in step (200), the temperature difference between the internal temperature of the refrigerator compartment (3) and the internal temperature of the chilled compartment (4) and the corresponding set temperature is detected, and if any of them has a temperature difference of 4° or more, for example, In some cases, the step (
Proceed to step (201) and FIND at step (201)
= 1 and proceed to step (202). In step (202), Fl! If ID=1, the process proceeds to step (203), and in step (203), the temperature at which the electric damper (9) of the refrigerator compartment (3) closes is lowered by, for example, 4°0, and the internal m of the refrigerator compartment (3) is If the internal temperature of the refrigerator compartment is higher, the electric damper (9) is opened and the process proceeds to step (207), and if it is lower, the process proceeds to step (204) and the electric damper (9) is closed. Proceed to step (205). In step (205), the same determination as in the refrigerator compartment (31) is made for the chilled compartment (4), and if the internal temperature of the chilled compartment (4) is low, step (206)
), and in step (206), the electric damper (G)
is closed and the process proceeds to step (208). Conversely, if the temperature inside the chilled chamber (4) is high, the electric damper is closed and the process proceeds to step (207). In step (207), the compressor (6) and blower are (8) and step (2)
0B), in step (208), RA
The timer (TA) configured by M (15c) is counted and the process proceeds to step (Hou). In step (209), it is determined whether the time counted by the timer ('l'A) has elapsed for a certain period of time, and if the certain period of time has elapsed, the process proceeds to step (210), sets PKIID←゛0°, and returns to the main root. return.

In addition, in the above embodiment, the set temperature of the refrigerator compartment (3) and the chilled compartment (4) is lowered for a certain period of time, and the compressor (6) and the blower (8) are operated for a certain period of time. , the number of times the electric damper corresponding to each of the refrigerator compartment (3) and chilled compartment was closed, compressor C), blower (
3) The operation time may be determined, and the same effect as in the above embodiment can be obtained. [Effects of the Invention] According to the present invention, the cold air cooled by the cooler forming the refrigeration cycle together with the pressure-fi machine is Air blower that supplies the freezer compartment and other cooling compartments.

In the refrigerator-freezer equipped with a damper that controls the amount of cold air supplied to the other cooling chambers, the temperature of the other cooling chambers is compared with each set temperature at the end of quick freezing,
Since the configuration is equipped with a control means that determines the operation of the compressor and the blower and the opening and closing of the damper, after the quick freezing is completed, the refrigerator compartment and other cooling compartments can quickly approach the set temperature, reducing food deterioration. play.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view of the refrigerator-freezer, FIG. 2 is an electric circuit diagram of the control device, and FIG. 3 is a flowchart of the refrigerator-freezer control device according to the present invention. FIG. 4 is a flowchart of a conventional refrigerator-freezer control device. In the figure, (2) is the freezer compartment, (3) is the refrigerator compartment, and (4)
is chilled room (other cooling room), (61 is compressor, (7 is
) is a cooler, (8) is a blower, (91, (10 is an electric damper (damper), (to) is a control unit (control means). In addition, in 1 figure, the same reference numerals indicate the same - or equivalent parts. show.

Claims (1)

[Claims] A blower that forcibly supplies cold air cooled by a cooler that forms a refrigeration cycle with a compressor to a freezing chamber and other cooling chambers, and a damper that controls the amount of cold air supplied to the other cooling chambers. A control device for a refrigerator-freezer, comprising a control means that compares the temperature of the other cooling chamber with each set temperature at the end of quick freezing and determines the operation of the compressor and the blower and the opening/closing of the damper. .