KR100796290B1 - Method for checking capillary tube of kimchi refrigerator - Google Patents

Abstract

A method of checking a capillary tube of a Kimchi refrigerator is provide to enable perception of reverse assembly and clogging of the capillary tube by forcibly starting a plurality of storage rooms to calculate the temperature difference, detecting reverse assembling and clogging of a stepping valve and capillary tube through the temperature difference and displaying an error by each storage room. A capillary tube of a Kimchi refrigerator is checked by the steps of: detecting and storing an initial temperature value of each storage room; forcibly starting an optional storage room; determining whether a temperature change value before and after the forcible starting falls over a preset second error determining temperature or not; determining the error generation from the optional storage room error about the forcibly started storage room and expressing the error if the temperature change value before and after the forcible operation dose not fall over the preset second error determining temperature; and repeating the above procedure by each storage room. The second error determining temperature is 3deg.C.

Description

Method for checking capillary tube of kimchi refrigerator}

1 is a block diagram of a kimchi refrigerator cooling cycle according to an embodiment of the present invention.

Figure 2 is a block diagram of a capillary tube inspection device according to an embodiment of the present invention.

3, 4, 5, 6 is a flow chart of the capillary tube inspection method according to an embodiment of the present invention.

<Explanation of symbols for the main parts of the drawings>

110: micom

120: timer

130: display unit

140: first high temperature sensor

150: second high temperature sensor

160: third high temperature sensor

170: fourth high temperature sensor

The present invention relates to a kimchi refrigerator, and more particularly, to a capillary tube inspection method of the kimchi refrigerator to detect the temperature difference of each storage compartment to detect the reverse assembly and clogging phenomenon of the capillary tube during the inspection process. will be.

In the case of general refrigerators, the internal temperature of the refrigerator is severely changed during the frequent opening and closing of the door, and the preservation period of kimchi is shortened by contact with the outside air while taking out the kimchi container out of the refrigerator to put the kimchi in the bowl. It is very difficult to maintain proper maturation. In order to solve this problem, kimchi refrigerators have been developed that can ripen kimchi according to the change of seasons and user's preferences, and then maintain the proper temperature for a long time to preserve the taste of ripe kimchi.

In general, kimchi refrigerators are fermented and stored according to the user's preference, such as by applying heat to kimchi to ripen and ferment it appropriately or by cooling the kimchi to a low temperature and storing it for a long time in the form of fresh kimchi as the first time.

The inside of the Kimchi refrigerator is equipped with a cooling device and a heating device.In the early stage, the temperature of the storage room is increased to a ripening temperature within a short time, and then the kimchi stored in the internal storage room is aged according to a preference, and then the storage temperature is lowered to an internal storage room. By keeping the temperature at an appropriate level, it is possible to preserve the taste and freshness of kimchi for a long time.

On the other hand, by installing two storage rooms to store kimchi in the kimchi refrigerator to ripen under different conditions so that different kimchi flavors can be eaten at the same time. It is used for storage purposes and the other for storing fresh vegetables.

Here, the refrigerant pipe connecting the condenser and the evaporator is called a capillary tube, and the refrigerant pipe connecting the evaporator and the compressor is called a suction pipe.

Therefore, a plurality of stepping valves are provided in order to control each of the storage chambers, and a step of assembling these stepping valves and the capillary tube is required. Accordingly, there is a problem that a lot of reverse assembly and clogging occurs. there was.

The present invention was devised to solve the above-mentioned problems, and forcibly starting a plurality of storage rooms to calculate the temperature difference, and detecting the reverse assembly and clogging of the stepping valve and the capillary tube through the temperature differences, thereby detecting errors in each storage room. The purpose is to provide a capillary tube inspection method of the kimchi refrigerator to display.

The present invention devised to achieve the above object is as follows. The capillary tube inspection method of the present invention is a stepping valve for supplying and blocking the capillary tube connected to the evaporator installed in each of the plurality of storage chambers and the capillary tube installed in the capillary tube and the refrigerant supplied from the condenser to the respective evaporators. In the method of assembling the capillary tube assembly error of the Kimchi refrigerator to determine the assembling error of the cold storage chamber, the initial temperature value of each of the storage chambers is sensed and stored, the arbitrary storage chamber is forced to start for a predetermined time, If it is determined that the temperature change value of the temperature falls below the preset second error determination temperature and does not fall above the second error determination temperature, it is determined by the storage room error for the forcibly started storage room to be repeatedly displayed for each storage room. Characterized in that performed.

The second error determination temperature is characterized in that 3 ℃.

Each of the storage compartments is forcibly started in the order of the lowest temperature during the forced start during the same time.

Determining whether the temperature of the remaining storage room is lower than the predetermined first error determination temperature by detecting a temperature change value for the remaining storage room except the forced storage room, and the temperature of the remaining storage room is the first error determination If the temperature is lowered or more, the step of determining the assembly process for the forcibly activated storage compartment as an error, characterized in that it comprises a step of displaying.

The first error determination temperature is characterized in that 1 ° C.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

1 is a block diagram of a kimchi refrigerator cooling cycle according to an embodiment of the present invention.

The kimchi refrigerator according to an embodiment of the present invention is provided with four storage chambers and two stepping valves.

The refrigerating cycle of the Kimchi refrigerator includes a compressor 10 for compressing the refrigerant at high temperature and high pressure, and a condenser 20 for releasing and liquefying heat contained in the refrigerant compressed by the compressor 10.

In addition, an agent is provided between the condenser 20 and the first and third expansion devices 61 and 63 to form a refrigerant supply flow path for the refrigerant condensed by the condenser 20 to the first and third storage chambers R1 or R3. The refrigerant condensed by the stepping valve 40 and the condenser 20 and the second and fourth expansion devices 62 and 64 and condensed by the condenser 20 to the second and fourth storage chambers R2 or R4. And a second stepping valve 50 forming a supply passage.

The first, second, third and fourth storage pipes 61 and 63 which make the refrigerant supplied through the first and second stepping valves 40 and 50 into a low pressure state easy to evaporate are stored in the first, second, third and fourth storage chambers. Connected to (R1, R2, R3, R4), and the first, second, second, third, and fourth storage chambers (R1, R2, R3, R4) absorb the ambient heat by evaporating the refrigerant at a low temperature and low pressure state. 1,2,3,4 evaporators 71, 72, 73, 74 are provided.

That is, the cooling cycle of the kimchi refrigerator according to the embodiment of the present invention is connected to the first stepping valve 40 and the second stepping valve 50 by branching the refrigerant pipe connected to the condenser 20, the first stepping valve 40 is connected to the first and third evaporators 71 and 73 installed in the first and third storage chambers R1 and R3, respectively, and the second stepping valve 50 is connected to the second and fourth storage chambers R2 and R4. It is connected to the second and fourth evaporators 72 and 74, respectively.

The capillary tube inspection apparatus according to the embodiment of the present invention based on the refrigeration cycle will be described in detail.

2 is a block diagram of a capillary tube inspection apparatus according to an embodiment of the present invention.

As shown in FIG. 2, the capillary tube inspection apparatus according to an exemplary embodiment of the present invention includes a timer 120 for counting time, a display unit 130 for displaying an error of an assembly process for each storage compartment, First, second, third, and fourth high-temperature sensors 140, 150, 160, and 170 installed in the second, third, and fourth storage compartments R1, R2, R3, and R4, respectively, to sense the temperature of the storage compartments R1, R2, R3, and R4; The microcomputer 110 for controlling the capillary tube inspection apparatus according to the embodiment of the present invention as a whole.

In particular, the microcomputer 110 checks the inspection priorities of the storage chambers R1, R2, R3, and R4, and sequentially checks the assembly process errors for the storage chambers R1, R2, R3, and R4 according to the priorities. do. Here, the priority is set in the order in which the temperature falls the most within the same time at the initial start-up, in this embodiment, the priority is set in the order of the second, third, fourth, first storage chambers (R2, R3, R4, R1). This will be described by way of example.

According to this priority, the microcomputer 110 stores the storage rooms R1 and R2 according to the temperature values input from the first, second, third and fourth high temperature sensors 140, 150, 160 and 170 for each time counted by the timer 120. Inspect the assembly process error for each of the R3 and R4, and display the error for each storage chamber R1, R2, R3 and R4 through the display unit 130 during the error inspection.

The control process of the microcomputer 110 will be described in detail with reference to FIGS. 3, 4, 5, and 6.

3, 4, 5, 6 is a flow chart of the capillary tube inspection method according to an embodiment of the present invention.

3 is a diagram illustrating an inspection process of the second storage chamber R2, FIG. 4 is a diagram illustrating an inspection process of the third storage chamber R3, and FIG. 5 is an inspection of the fourth storage chamber R4. FIG. 6 is a diagram illustrating a process, and FIG. 6 is a diagram illustrating an inspection process of the first storage chamber R1.

Hereinafter, the capillary tube inspection method according to an embodiment of the present invention will be described in detail for each storage compartment.

The capillary tube inspection method according to an embodiment of the present invention stores the first initial temperature values (R1_T0, R2_T0, R3_T0, R4_T0) by first sensing the temperature of each storage chamber (R1, R2, R3, R4) (S10). do.

As such, when the initial temperature values R1_T0, R2_T0, R3_T0, and R4_T0 of the first, second, third, and fourth storage chambers R1, R2, R3, and R4 are stored, the first, second, third, and fourth storage chambers R1, Check the assembly process error for R2, R3, R4).

Hereinafter, the second, third, fourth, and first storage chambers R2, R3, R4, and R1 will be described in order of preset priority.

First, the error checking process of the second storage chamber R2 illustrated in FIG. 3 controls the compressor 10 to force the second storage chamber R2 to start for a predetermined startup time (S12).

As described above, the second storage chamber R2 is forcibly started and the time is counted through the timer 120 to determine whether the counted time passes 9 minutes (S14). When the time elapses after 9 minutes, the temperature of the first, third, and fourth storage chambers R1, R3, and R4 other than the forcedly activated second storage chamber R2 is sensed (S16), and the detected first, third, 4 The temperature change value is detected for each storage chamber R1, R3, and R4 by comparing the temperature of the storage chambers R1, R3, and R4 with the initial temperature values R1_T0, R3_T0, and R4_T0.

When the temperature change value is detected for each of the first, third and fourth storage chambers R1, R3, and R4, the first error determination temperature for which the temperature change value detected for each of the first, third and fourth storage chambers R1, R3, and R4 is preset. Preferably, it is determined whether the temperature is lowered by 1 ° C. or higher (S18), and when the temperature is lowered by 1 ° C. or higher, an error occurs in the assembling process for the second storage chamber R 2 (S20).

On the other hand, if the temperature change value detected for each of the first, third, and fourth storage chambers R1, R3, and R4 does not fall above the preset first error determination temperature, it is determined whether one minute has elapsed (S22). After 1 minute has elapsed, forced start of the second storage chamber R2 is terminated (S24).

In addition, the temperature values of the first, third, and fourth storage chambers R1, R3, and R4 are sensed, and the initial temperature values R1_T1, R3_T1, and R4_T1 are updated (S26) to the detected temperature values. A process of checking an error of the illustrated third storage chamber R3 is performed.

When the initial temperature values R1_T2, R3_T2, and R4_T2 of the first, third, and fourth storage chambers are updated, it is determined whether one minute has elapsed (S28), and when one minute has elapsed, the current temperature of the second storage chamber R2 is sensed. The temperature change value of the second storage chamber R2 is detected (S30) in comparison with the initial temperature value R2_T0 of the second storage chamber R2.

As described above, when the temperature change value of the second storage chamber R2 is detected, it is determined whether the temperature change value of the second storage chamber R2 has fallen to a preset second error determination temperature, preferably 3 ° C. or more (S32). At this time, if the temperature change value of the second storage chamber R2 does not fall above the preset second error determination temperature, an error occurs in the assembly process for the second storage chamber R2 (S34).

In the process of checking an error of the third storage chamber illustrated in FIG. 4, the initial temperature values R1_T1, R3_T1 of the first, third, and fourth storage chambers R1, R3, and R4 may be determined in the process of checking the error of the second storage chamber R2. When R4_T1 is updated, the third storage chamber is forcibly started (S36).

The third storage chamber R3 is forcibly started for a predetermined start time, and the time is counted through the timer 120 to determine whether the counted time has passed 4 minutes (S38). When the time elapses for 4 minutes, the temperature of the remaining first and fourth storage rooms R1 and R4 except for the forcibly activated second and third storage rooms R2 and R3 is detected (S40), and the detected first and fourth storage rooms are detected. The temperature change value is detected for each of the first and fourth storage chambers R1 and R4 by comparing the temperature of the R1 and R4 with the initial temperature values R1_T1 and R4_T1 of the first and fourth storage chambers R1 and R4.

When the temperature change value is detected for each of the first and fourth storage chambers R1 and R4, the temperature change value detected for each of the first and fourth storage chambers R1 and R4 is lowered to a preset first error determination temperature, preferably 1 ° C. or more. If it is determined in step S42 that the temperature is lowered by 1 ° C. or more, an error occurs in the assembling process for the third storage chamber R3 (S44).

On the other hand, if the temperature change value detected for each of the first and fourth storage chambers R1 and R4 does not fall above the preset first error determination temperature, it is determined whether one minute has elapsed (S46), and when one minute has elapsed, The forced start of the third storage chamber R3 is terminated (S48).

In addition, the temperature values of the first and fourth storage chambers R1 and R4 are sensed and the initial temperature values R1_T2 and R4_T2 are updated (S50) to the detected temperature values, and the fourth storage chamber R4 shown in FIG. Check for errors.

In addition, when the initial temperature values R1_T2 and R4_T2 of the first and fourth storage rooms are updated, it is determined whether one minute has elapsed (S52), and when one minute has elapsed, the current temperature of the third storage room R3 is sensed and the third storage room is detected. The temperature change value of the third storage chamber R3 is detected (S54) as compared with the initial temperature value R3_T1 of the R3.

As such, when the temperature change value of the third storage chamber R3 is detected, it is determined whether the temperature change value of the third storage chamber R3 has fallen to a preset second error determination temperature, preferably 3 ° C. or more (S56). At this time, if the temperature change value of the third storage chamber R3 does not fall above the preset second error determination temperature, an error occurs in the assembly process for the third storage chamber R3 (S58).

In the process of checking an error of the fourth storage room illustrated in FIG. 5, when the initial temperature values R1_T2 and R4_T2 of the first and fourth storage rooms R1 and R4 are updated in the process of checking an error of the third storage room R3. The fourth storage chamber is forcedly started (S60) for a predetermined startup time.

The fourth storage chamber R4 is forcibly started and the time is counted through the timer 120 to determine whether the counted time passes 9 minutes (S62). If the time elapses after 9 minutes, the temperature of the first storage chamber R1 except for the forcibly activated second, third, and fourth storage chambers R2, R3, and R4 is detected (S64), and the detected first storage chamber R1 is detected. The temperature change value of the first storage chamber R1 is detected by comparing the temperature of) and the initial temperature value R1_T2 of the first storage chamber R1.

When the temperature change value of the first storage chamber R1 is detected, it is determined whether the detected temperature change value of the first storage chamber R1 has fallen to a preset first error determination temperature, preferably 1 ° C. or more (S66). If it is lowered abnormally, an error occurs in the assembling process for the fourth storage chamber R4 (S68).

On the other hand, if the temperature change value detected in the first storage chamber R1 does not fall above the preset first error determination temperature, it is determined whether 1 minute has elapsed (S70), and when 1 minute has elapsed, the fourth storage room The forced start of R4 is terminated (S72).

In addition, the temperature value of the first storage chamber R1 is sensed, and the initial temperature value R1_T3 is updated (S74) to the detected temperature value at this time, and the error of the first storage chamber R1 illustrated in FIG. 6 is inspected. Perform the process.

In addition, when the initial temperature value R1_T3 of the first storage chamber is updated, it is determined whether one minute has elapsed (S76), and when one minute has elapsed, the current temperature of the fourth storage chamber R4 is sensed and the fourth storage chamber R4 The temperature change value of the fourth storage chamber R4 is detected in comparison with the initial temperature value R4_T2 (S78).

As described above, when the temperature change value of the fourth storage chamber R4 is detected, it is determined whether the temperature change value of the fourth storage chamber R4 has fallen to a preset second error determination temperature, preferably 3 ° C. or more (S80). At this time, if the temperature change value of the fourth storage chamber R4 does not fall above the preset second error determination temperature, an error occurs in the assembling process for the fourth storage chamber R4 (S82).

In the process of checking an error of the first storage room illustrated in FIG. 6, when the initial temperature value R1_T3 of the first storage room R1 is updated in the process of checking an error of the fourth storage room R4, the first storage room is forced. Start (S84).

When the first storage chamber R1 is forcibly started, it is determined whether 5 minutes have elapsed (S86), and when 5 minutes have elapsed, the forced start of the first storage chamber R1 is terminated (S88).

When the forced start of the first storage chamber R1 ends, it is determined whether 1 minute has elapsed (S90), and when 1 minute has elapsed, the temperature of the storage chamber R1 is sensed and the detected temperature value of the first storage chamber R1 is detected. The temperature change value of the first storage chamber R1 is detected (S92) compared with the initial temperature value R1_T3 of the first storage chamber R1.

Thereafter, it is determined whether or not the temperature change value of the first storage chamber R1 has fallen to a preset second error determination temperature, preferably 3 ° C. or more (S94), so that the temperature change value of the first storage chamber R1 is the second error. If the temperature does not fall above the determined temperature, an error occurs in the assembling process for the first storage chamber R1 (S96).

An error checking process for the second, third, fourth, and first storage rooms R2, R3, R4, and R1 will be described with reference to Table 1 below.

Capillary Tube Error Checklist  Error display order storeroom Startup time Temperature change Temperature change judgment point One R2 0-10 minutes R1 & R3 & R4≥1 ℃ ↓ (falling) 9 minutes: R1, R3, R4 judgment R2 error indication R2≥3 ℃ ↓ (falling) 11: minutes to R2 2 R3 10-15 minutes R1 & R4≥1 ℃ ↓ (falling) 14 minutes: R1, R4 judgment R3 error display R3≥3 ℃ ↓ (falling) 16 minutes: R3 judgment 3 R4 15-25 minutes R1≥1 ℃ ↓ (falling) 24 minutes: R1 judgment R4 error display R4≥3 ℃ ↓ (falling) 26 minutes: R4 judgment 4 R1 25-30 minutes R1≥3 ℃ ↓ (falling) 31 minutes: R1 judgment R1 error indication Total running time 30 minutes

As shown in the capillary tube error test table of Table 1, the temperature change values of the remaining storage rooms that are not started one minute before the end of the respective starting times of the second, third, and fourth storage rooms R2, R3, and R4 If the temperature falls below the first error determination temperature, the storage chamber to be started is displayed as an error, and if the temperature change value of the storage chamber to be started immediately after one minute after the start time does not fall above the second error determination temperature, Mark it as an error. In addition, the storage chamber to be started last is displayed as an error if the temperature change value falls below the second error determination temperature one minute after the start time.

According to the above process, when two errors of the storage compartment are displayed, it can be seen that the capillary tube connected to the storage compartment is disassembled, and when one is displayed, the capillary tube of the storage compartment is blocked.

The present invention is not limited to the above-described embodiments and can be carried out in various modifications within the scope of the technical idea of the present invention.

According to the present invention configured as described above, a plurality of storage chambers are forcibly started to calculate a temperature difference, and through this temperature difference, the reverse assembly and clogging of the stepping valve and the capillary tube are detected to display an error for each storage chamber. The reverse assembly and clogging of the capillary tube can be easily recognized for each storage compartment.

Claims (5)

The Kimchi refrigerator determines an assembly error between a capillary tube connected to an evaporator installed in each of the plurality of storage chambers and a stepping valve installed at the capillary tube to supply and shut off refrigerant supplied from a condenser to each evaporator. In the capillary tube assembly error determination method, Detects and stores the initial temperature value of each storage chamber, forcibly starts an arbitrary storage chamber for a predetermined time, and then determines whether the temperature change value before and after the forced starting falls below a preset second error determination temperature. If it does not fall above the error determination temperature, the capillary tube inspection method of the Kimchi refrigerator characterized in that it is repeatedly performed for each of the storage room to determine and display the storage room error for the forcibly started storage room. The method of claim 1, wherein the second error determination temperature is 3 ° C capillary tube inspection method of the kimchi refrigerator. The method of claim 1, wherein each of the storage chambers is forcibly started in the order of the lowest temperature during the forced start during the same time. The method of claim 1, further comprising: detecting a change in temperature of the remaining storage chambers other than the forcedly started storage chamber and determining whether the temperature of the remaining storage chambers is lower than a preset first error determination temperature; And And determining the assembly process for the forcedly activated storage chamber as an error if the remaining storage chamber temperature has fallen below the first error determination temperature, and displaying the capillary tube of the Kimchi refrigerator. The method of claim 4, wherein the first error determination temperature is 1 ° C.

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