JPH10153380A - Refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent the uneasiness of users with the state inside the refrigerator compartments caused by a temperature indication by suppressing abrupt rise and fall of indicated temperature during precooling run before defrosting and during the defrosting concerning the temperature indication of the refrigerator. SOLUTION: The abrupt rise and fall of the indicated temperature according to the running state of the refrigerator and the state of the use of it is avoided and the most adequate temperature indication is obtained by detecting the data with the temperature detecting means of the inside temperature of a freezer side compartment 35 from a temperature detecting apparatus of the inside temperature of a freezer side compartment, correction calculating the detected temperature flexibly according to the running state of the refrigerator with a temperature calculating means 37 and indicating it on the temperature indicating part 21.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a refrigerator using a compressor, and more particularly to a refrigerator having a refrigerator temperature indicator for displaying a refrigerator refrigerator temperature.

[0002]

2. Description of the Related Art Refrigerators in recent years contain a variety of foods from raw foods such as meat, fish and vegetables to frozen foods due to diversification of eating habits. In addition, the number of families who buy one week of shopping in bulk on the weekend has increased.
It is full of various foods. In order to know the state of the temperature inside the refrigerator in such a state, the temperature inside the refrigerator is detected by surrounding a temperature detector such as a thermistor with a heat capacity member as shown in Japanese Patent Application Laid-Open No. 54-37961. ,
There is a mechanism to indicate it electrically. The configuration will be described below with reference to FIGS. In FIG. 3, reference numeral 1 denotes a refrigerator main body, and the refrigerator main body 1 has a refrigerator room 2, a freezing room 3, a new temperature zone room (not shown), and a vegetable room (not shown) formed therein. Reference numerals 4 and 5 are doors for closing the respective rooms. Numeral 8 designates a partition wall between the freezer compartment 2 and the refrigerator compartment 3. Reference numeral 9 denotes a cooler provided at the rear of the freezing compartment 2, 10 denotes a blower, 11 denotes an M plate forming a mouth ring of the blower 10, 12 denotes a discharge port 12 a
Is a cover coil having: This cover coil 12
Are installed in front of the M plate 11 with an interval capable of forming the pressure chamber 13. Therefore, most of the cool air cooled by the cooler 9 is blown out by the blower 10 to the freezing room 2 through the discharge port 12a, and the remaining cool air is discharged through the pressure chamber 13 through the discharge port 14 to the cold room. It is blown out to 3. The cold air thus blown out of the two chambers forms a cool air circulation path in which, after cooling the respective chambers, the freezing chamber 2 is returned to the cooler 9 from the suction port 16 provided in the inner wall.

[0003] Incidentally, reference numeral 17 denotes a cold air return air passage at the freezer compartment at this time, and reference numeral 18 denotes a cold air return air passage at the refrigerator compartment side. Reference numeral 19 denotes a freezer compartment-side internal temperature detector for detecting the freezer compartment internal temperature with a thermistor or the like, and reference numeral 20 denotes a refrigerator compartment-side internal temperature detector. The freezer-side temperature detector 19 is installed in the pressure chamber 13. Further, the freezer compartment side internal temperature detector 19 and the refrigerator compartment side internal temperature detector 20 are covered with a block of aluminum, copper or the like in order to have a certain amount of heat mass. Therefore, the temperatures detected by these temperature detectors are not changed significantly even when the door is opened for 20 to 30 seconds. Reference numeral 21 denotes a temperature display section provided on the front of the freezer compartment door 4, which displays the temperature in the refrigerator numerically.

[0004] The operation of the temperature display device configured as described above will be described with reference to the block diagram of FIG. The freezer compartment side internal temperature detector 19, the refrigerator compartment side internal temperature detector 20 is a temperature detector having the heat mass, and 22
Is a changeover SW switch for displaying the temperature of either the freezer compartment or the refrigerating compartment on a display 27 described later.

Reference numeral 23 denotes an oscillator. The oscillator 23 automatically switches the switching SW 22 at regular time intervals. 2
Reference numeral 4 denotes an A / D converter which converts a resistance change of the temperature detector into a digital signal, converts the signal of the A / D converter into a display signal through a decoder 25, and is provided inside the temperature display unit 21. The temperature detected by the freezer compartment side internal temperature detector 19 and the refrigerator compartment side internal temperature detector 20 is indicated by a numeral on the display 27.

[0006]

However, in the above-described conventional configuration, there is no large change in the display temperature with respect to a relatively short time temperature change such as a refrigerator door opening, but a relatively long time such as a defrosting operation. Responsiveness to the subsequent temperature change is very poor, and the display temperature is still high even if the inside temperature returns to the normal temperature after the completion of defrosting. There was a problem that the user was very anxious by looking.

An object of the present invention is to provide a refrigerator having a display device capable of displaying an appropriate temperature so that a user does not have to worry about the temperature indicated by the internal temperature indicator.

[0008]

SUMMARY OF THE INVENTION In order to achieve this object, the present invention performs optimal correction in various operating states of a refrigerator, and opens and closes a door, starts and stops a compressor, and performs supercooling before defrosting. During normal use of the refrigerator, such as when defrosting, an appropriate temperature in the refrigerator is displayed, so that unnecessary anxiety of the user due to the temperature display can be eliminated.

[0009]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention relates to a refrigerator internal temperature display temperature detector, a refrigerator internal temperature calculating means for calculating the internal temperature detected by the refrigerator internal temperature display temperature detector, An internal temperature display that displays the internal temperature calculated by the internal temperature calculating means, and performs an optimal calculation of the internal temperature that changes according to various states of the refrigerator, thereby obtaining an appropriate internal temperature. Can be displayed.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a refrigerator according to the present invention will be described below with reference to the drawings. The same components as those of the related art are denoted by the same reference numerals, and detailed description is omitted.

FIG. 1 is a block diagram of a refrigerator according to a first embodiment of the present invention. FIG. 2 is a flowchart of the operation of the embodiment.

Reference numeral 1 denotes a refrigerator body in which a freezer compartment 4, a refrigerator compartment 3, and a vegetable compartment 6 are formed. Reference numeral 28 denotes a compressor, which is controlled by a compressor control unit 29 and is operated or stopped by a compressor drive unit 30. Reference numeral 31 denotes a compressor operating time integrating means for integrating the operating time of the compressor. Reference numeral 32 denotes a freezer compartment-side internal temperature control temperature detector, and the temperature in the freezer compartment 2 is detected by the internal temperature detecting means 33 based on the information of the freezer compartment-side internal temperature control temperature detector. In the refrigerator temperature determining means 34, it is determined whether the temperature in the freezer compartment 4 is higher or lower than a set temperature based on the temperature detected by the temperature detecting means 33, and the compressor 28 is operated and stopped. I have. 35, 36 are the freezer compartment side internal temperature detector 19 or the refrigerator compartment side internal temperature detector 2
This is a detection unit for displaying the inside temperature, which detects the inside temperature from the information of 0. Reference numeral 37 denotes the temperature detecting means 35 for displaying the temperature in the freezer compartment and the temperature detecting means 3 for displaying the temperature in the refrigerator compartment.
6 is a temperature calculating means for calculating the internal temperature detected by the display unit 6 into an optimum display temperature to be displayed on the display 27 in the temperature display unit 21.
8 is displayed on the temperature display section 21. Reference numeral 39 denotes a defroster of a cooler, which is configured to be turned on / off by a defroster driving unit 41 according to a signal from a defroster control unit 40.

In the refrigerator configured as described above,
The operation will be described with reference to the flowchart of FIG.

First, in step 101, the internal temperature is detected, and in step 102, the average temperature is calculated.
At 103, the average temperature is displayed. Next, STEP104
Then, it is determined whether the state is not the pre-cool state before the defrosting. If the state is not the pre-cool state, the process returns to STEP 101, and this operation is repeated. If it is in the pre-cool state in STEP 104, the internal temperature is detected in STEP 105 and STEP 1
At 06, the pre-cool temperature correction is performed, the corrected internal temperature is displayed at STEP 107, and the routine proceeds to STEP 108. S
In STEP 108, it is determined whether or not the vehicle is in a defrost state.
If defrost has not yet started, STEP 105
Return to and repeat the operation. If it is determined that the defrost has started, the process proceeds to STEP 109 to detect the temperature in the refrigerator, and performs a defrost correction calculation in STEP 110,
The temperature after defrost correction is displayed in STEP111. At STEP 112, it is determined whether or not the defrost has been completed, and if not completed, the process returns to STEP 109 and repeats the operation. If defrost has been completed, STEP1
01 and the cycle is repeated thereafter.

As described above, in the refrigerator of this embodiment, the display temperature is corrected according to various states of the refrigerator, so that the change in the display temperature due to the operation state of the refrigerator is small, and the refrigerator is appropriately stored. The internal temperature can be displayed.

[0016]

As described above, according to the present invention, the temperature data obtained by the temperature display temperature detector is calculated by the internal temperature calculating means depending on the operation state of various refrigerators in each case. Since the calculated temperature is displayed by the internal temperature display means, a temperature change due to the operation state of the refrigerator is small, and an appropriate internal temperature can be obtained.

[Brief description of the drawings]

FIG. 1 is a block diagram of Embodiment 1 of a refrigerator according to the present invention.

FIG. 2 is an operation flowchart of the embodiment.

FIG. 3 is a sectional view of a conventional refrigerator.

FIG. 4 is a block diagram of a conventional refrigerator.

[Explanation of symbols]

 Reference Signs List 9 cooler 10 blower 11 M plate 12 cover coil 13 pressure chamber 14 refrigerating chamber discharge port 16 suction port 17 freezer compartment side cool air return path 18 refrigerating room side cool air return path 19 refrigerator temperature detector 21 temperature display unit 22 switching SW 23 Oscillator 24 A / D converter 25 Decoder 27 Display 28 Compressor 29 Compressor control means 30 Compressor drive means 31 Compressor operation time integration means 32 Temperature sensor for temperature control in refrigerator in refrigerator compartment 33 Temperature in refrigerator Detecting means 34 Internal temperature judging means 35 Freezing room side internal temperature display temperature detecting means 36 Refrigerating room side internal temperature displaying temperature detecting means 37 Temperature calculating means 38 Display driving means 39 Defroster 40 Defroster control means 41 Defrosting Unit driving means

Claims (1)

[Claims] 1. A refrigerator and a cooler of a refrigeration cycle, a defroster for removing frost from the cooler, an internal temperature detector for detecting an internal temperature, and an internal temperature detected by the internal temperature detector. The refrigerator has a refrigerator temperature calculating means, and a refrigerator temperature indicator for displaying the refrigerator temperature calculated by the refrigerator temperature calculating means, and the refrigerator is in a supercooled state before defrosting and in a defrosting state. In the refrigerator, the refrigerator temperature is corrected by the refrigerator temperature calculating means, the corrected temperature value is displayed on the refrigerator temperature indicator, and the rise and fall of the display refrigerator temperature due to the operation state of the refrigerator is suppressed.