JPH11142047A - Controller for refrigerator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To save energy by making a decision whether the condenser temperature is higher than a specified level or not, determining the installation environment of refrigerator if it is higher than the specified level, indicating the results to notify the installation environment to a user thereby keeping the condenser temperature at a low level. SOLUTION: When the installation environment of a refrigerator deteriorates, a condenser temperature setting means 1 sets a condenser temperature higher than the condenser control temperature when the refrigerator is covered with a wall on the back and side thereof. A condenser temperature determining means 2 compares a condenser temperature detected by a condenser temperature detecting means with a temperature set by the condenser temperature setting means 1 and delivers an output if the former is higher. A decision means 3 lights an indicating means 4 to notify that the installation environment of the refrigerator is bad if the condenser temperature determining means 2 delivers an output otherwise unlights the indicating means 4 to notify that the installation environment of the refrigerator is good.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a control device for a refrigerator.

[0002]

2. Description of the Related Art In recent years, proposals for energy saving have been made from the viewpoint of global environmental problems. As disclosed in Japanese Patent Application Laid-Open No. Hei 9-145214, there is a method in which the temperature of a condenser is kept low to save energy.

Hereinafter, a conventional operation control device for a refrigerator will be described with reference to the drawings. FIG. 11 is a block diagram showing a configuration of a conventional refrigerator operation control device, FIG. 12 is a plan view of a machine room of the refrigerator, and FIG. 11 is a flowchart for explaining the operation of the refrigerator operation control device.

In FIG. 11 and FIG. 12, reference numeral 101 denotes a refrigerator temperature detecting means for detecting a refrigerator refrigerator temperature, and reference numeral 102 denotes a refrigerator temperature control based on the refrigerator temperature detected by the refrigerator temperature detecting means. The internal temperature control unit outputs the internal temperature detected by the internal temperature detection unit to the compressor control unit 103 to operate the compressor 104 to control the internal temperature to an arbitrary temperature.

A condenser 105 condenses the refrigerant compressed by the compressor 104 and radiates heat to the outside of the refrigerator.

Reference numeral 106 denotes condensing temperature detecting means for detecting the temperature of the condenser 105. Reference numeral 107 denotes condensing for discriminating the magnitude of the condenser temperature detected by the condensing temperature detecting means 106 from a preset condensing temperature. This is a temperature comparison means.

A blower control means 108 outputs a rotation speed command to the blower 109 so that the output of the condensation temperature detection means 106 reaches the condensation temperature from the output of the condensation temperature comparison means 107.

[0008] The operation of the operation control device for a refrigerator configured as described above will be described with reference to Figs.

In the flowchart of FIG. 13, first,
In S1, the inside temperature detecting means 101 detects the inside temperature, and
In step 2, a comparison is made between the detected temperature t and the preset internal refrigerator temperature ts of the refrigerator, and the
Outputs an operation command for the compressor 104 to the compressor control means 103. If t <ts, the compressor 104 is stopped in S3, the process proceeds to S8, and the blower control unit 108 transmits a blower stop command, stops the blower 109, and repeats the freezing room temperature detection.

If t> ts, the internal temperature control means 102 outputs an operation command in S4, and the compressor 104 is operated by the compressor control means 103.

Further, in S5, the condensation temperature detecting means 106
The condensing temperature T during the operation of the compressor 104 is detected.

At S6, the detected temperature T is compared with the condenser control temperature Ts by the condensing temperature comparing means 107.
If> Ts, in S7, a blower operation command is transmitted to the blower control means 108 to operate the blower 109.

If T <Ts, then in S8 the blower control means 1
08: a blower stop command is transmitted, and the blower 109 is stopped.

[0014]

However, in the above configuration, the air passage of the cooling air of the blower is blocked for some reason (for example, when dust accumulates in the air passage or the back and side surfaces of the refrigerator are covered with walls). ) When the refrigerator is installed as described above, even if the rotation speed of the blower is increased, sufficient cooling air does not hit the condenser, and the refrigerator operates in an environment in which the temperature of the condenser exceeds the condenser control temperature. This makes it difficult to save energy.

According to the present invention, if the temperature of the condenser rises, the installation environment of the refrigerator is determined, and the installation environment is notified to the user.
The purpose is to provide sufficient cooling air to the condenser and keep the condenser temperature low to save energy.

[0016]

SUMMARY OF THE INVENTION In order to solve this problem, a refrigerator control device according to the present invention determines whether or not a condenser temperature is equal to or higher than a predetermined temperature. Judgment, because it is configured to display the result, it is possible to inform the user that the refrigerator installation environment is bad, energy saving operation is not possible,
As a result, the installation environment can be improved and an energy-saving operable environment can be achieved.

In addition, it is configured that it is determined whether the condenser temperature is equal to or higher than a predetermined temperature, and when the temperature is equal to or higher than the predetermined temperature, the installation environment of the refrigerator is determined and the result is notified by voice. The information that the refrigerator installation environment is poor and energy saving operation cannot be performed can be reliably notified without overlooking by the user, and as a result, the installation environment can be improved and an energy saving operation enabled environment can be provided.

Further, it is determined whether or not the condenser temperature is equal to or higher than a predetermined temperature, the number of times that the temperature has exceeded the predetermined temperature is counted, and when the counted value is equal to or higher than the predetermined number, the installation environment of the refrigerator is determined. Because it is configured to notify by display or voice, it is possible to accurately determine the installation environment of the refrigerator, and to inform the user that the installation environment of the refrigerator is bad and that energy saving operation cannot be performed. As a result, The installation environment can be improved and an energy-saving operable environment can be achieved.

Also, it is determined whether or not the condenser temperature is equal to or higher than a predetermined temperature set for each outside air temperature, and the number of times that the temperature has become equal to or higher than the predetermined temperature set for each outside air temperature is counted. The refrigerator installation environment is determined in advance, and the result is displayed or notified by voice. Therefore, the refrigerator installation environment can be determined at low outside temperature or high outside temperature, and the refrigerator installation environment is bad for the user. In addition, it can be notified that the energy saving operation cannot be performed, and as a result, the installation environment can be improved and the energy saving operation enabled environment can be provided.

Also, it is determined whether or not the condenser temperature is equal to or higher than a predetermined temperature, and the number of times that the temperature has exceeded the predetermined temperature is counted. When the temperature becomes higher than the temperature, the installation environment of the refrigerator is determined, and the result is displayed or notified by voice. Can be notified that the installation environment of the refrigerator is poor and energy saving operation cannot be performed, and as a result, the installation environment can be improved and an energy saving operation enabled environment can be provided.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS According to the first aspect of the present invention, an internal temperature detecting means for detecting an internal temperature, and a temperature control in the internal chamber is controlled based on the temperature detected by the internal temperature detecting means. Temperature control means, a compressor control means for operating the compressor from the output of the temperature control means, a condenser for condensing the refrigerant compressed by the compressor and radiating heat to the outside of the refrigerator, and a temperature of the condenser. Condenser temperature detecting means for detecting the temperature of the condenser, determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature, and sending out an output when the temperature becomes equal to or higher than the predetermined temperature; and It has a judging means for judging the installation environment of the refrigerator when the temperature becomes equal to or higher than the predetermined temperature, and has an effect that it can detect that the condenser is operating at a high temperature.

According to a second aspect of the present invention, there is provided an in-compartment temperature detecting means for detecting an in-compartment temperature, and an in-compartment temperature for controlling a temperature control in the compartment from the temperature detected by the in-compartment temperature detecting means. Control means, a compressor control means for operating the compressor from the output of the internal temperature control means, a condenser for condensing the refrigerant compressed by the compressor and releasing heat to the outside of the refrigerator, and a condensation for detecting the temperature of the condenser Condenser temperature detecting means, a condenser temperature detecting means for determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature, and sending out an output when the condenser temperature is equal to or higher than the predetermined temperature; and The apparatus has a counting means for counting the number of occurrences, and a determination means for determining an installation environment of the refrigerator when the count value reaches a predetermined number, and accurately detects that the condenser is operating at a high temperature. It has the effect of being able to.

According to a third aspect of the present invention, an outside air temperature detecting means for detecting an outside air temperature, an inside temperature detecting means for detecting an inside temperature, and a temperature Temperature control means for controlling the internal temperature control, compressor control means for operating the compressor from the output of the temperature control means, and a condenser for condensing the refrigerant compressed by the compressor and releasing heat to the outside of the chamber A condenser temperature detecting means for detecting the temperature of the condenser, and determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature set for each outside air temperature, and sending out an output when the temperature becomes equal to or higher than the predetermined temperature. Condenser temperature determining means,
Counting means for counting that the condenser temperature has become equal to or higher than a predetermined temperature, and determining means for determining the installation environment of the refrigerator when the count value has reached a predetermined number, the condenser operates at a high temperature Has the effect that any outside air temperature can be detected.

According to a fourth aspect of the present invention, there is provided an in-compartment temperature detecting means for detecting an in-compartment temperature, and an in-compartment temperature for controlling the temperature control in the compartment from the temperature detected by the in-compartment temperature detecting means. Control means, a compressor control means for operating the compressor from the output of the internal temperature control means, a condenser for condensing the refrigerant compressed by the compressor and releasing heat to the outside of the refrigerator, and a condensation for detecting the temperature of the condenser Condenser temperature detecting means, condenser temperature determining means for determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature, and sending output when the temperature becomes equal to or higher than the predetermined temperature; and wherein the condenser temperature is equal to or higher than the predetermined temperature. Counting means for counting the occurrence of abnormal temperature, condenser temperature abnormality judging means for outputting an output when the temperature becomes higher than a predetermined abnormal temperature higher than a predetermined temperature, and counting when the condenser temperature becomes higher than a predetermined temperature. Counting means and the If the number of times is reached, or the output of the condenser temperature abnormality determination means has a determination means for determining the installation environment of the refrigerator, it can be detected that the condenser is operating at a high temperature, the condenser temperature abnormal It has the effect of being able to detect even when the temperature becomes high.

The invention according to claim 5 of the present invention has display means for displaying the installation environment judgment result when the judgment means judges the installation environment, so that the user can confirm that the installation environment of the refrigerator is bad. It has the effect of being able to inform.

The invention according to claim 6 of the present invention has a voice synthesizing means for notifying the installation environment judgment result by voice when the judging means judges the installation environment, so that the user can install the refrigerator without overlooking. This has the effect of notifying the user that the environment is bad.

(Embodiment 1) FIG. 1 is a block diagram of a control device for a refrigerator according to a first embodiment of the present invention, and FIG.
3 is a flowchart for explaining the operation of the control device of the refrigerator in the first embodiment of the present invention.

In FIG. 1, the same components as those of the prior art are denoted by the same reference numerals, and description thereof is omitted. In FIG. 1, reference numeral 1 denotes a condenser temperature when the installation environment of the refrigerator is deteriorated, for example, when the back and side surfaces of the refrigerator are covered with a wall. , 2
Is a condenser temperature determining means for comparing the condenser temperature detected by the condenser temperature detecting means 106 with the set temperature of the condenser temperature setting means 1 and sending out an output when the condenser temperature is higher than the set temperature.

Reference numeral 3 indicates that if there is an output from the condenser temperature judging means 2, the display means 4 is turned on to indicate that the installation environment of the refrigerator is bad, and if there is no output, the display means 4 is turned off and the installation environment of the refrigerator is good. Is displayed. The operation of the refrigerator operation control device configured as described above will be described with reference to FIGS.

In the flowchart of FIG. 2, first, S1
The inside temperature detecting means 101 detects the inside temperature of the refrigerator, compares the detected temperature t with the preset inside temperature ts of the refrigerator in S2, and the compressor control means 103 by the inside temperature control means 102. The operation command of the compressor 104 is output to the

If t> ts is not satisfied, the compressor 104 is stopped in S3, the process proceeds to S8, the blower control means 108 transmits a blower stop command, stops the blower 109, and repeats the freezing room temperature detection.

If t> ts, the internal temperature control means 102 outputs an operation command in S4, and the compressor 104 is operated by the compressor control means 103.

Further, in S5, the condensation temperature detecting means 106
The condensing temperature T during the operation of the compressor 104 is detected.

Then, in S6, the detected temperature T is compared with the condenser control temperature Ts by the condensing temperature comparing means 107.
If not> Ts, in S8, the blower control means 108 transmits a blower stop command and stops the blower 109.

If T> Ts, then in S7 the blower control means 1
A blower operation command is transmitted to 08 to operate the blower 109.

Next, at S9, the set temperature T1 set by the condenser temperature setting means 1 is read, and at S10, the condenser temperature T is set.
And the condenser set temperature T1 are compared and determined, and in S11, T> T1
It is determined whether or not.

If T> T1 in S11, the judgment means 3 turns on the display means 4 to display that the refrigerator installation environment is bad in S12, and if T> T1, the judgment means 3 displays the display means 4 in S13. Turns off the light and indicates that the refrigerator installation environment is good.

As described above, if the installation environment of the refrigerator is poor, the temperature of the condenser increases, and the temperature is detected and notified to the user, so that the user can improve the installation environment of the refrigerator. After the installation conditions are improved, the refrigerator can be operated at a low condenser temperature to save energy.

(Embodiment 2) FIG. 3 is a block diagram of a control device of a refrigerator according to a second embodiment of the present invention.
9 is a flowchart for explaining the operation of the refrigerator control device according to the second embodiment of the present invention.

In FIG. 3, the same components as those of the prior art are denoted by the same reference numerals, and description thereof is omitted. In FIG. 1, 1 is a condenser temperature setting means for setting a condenser temperature when the installation environment of the refrigerator is deteriorated, for example, a condenser temperature when the back and side surfaces of the refrigerator are covered with a wall, Reference numeral 2 denotes a condenser temperature determination unit that compares the condenser temperature detected by the condenser temperature detection unit 106 with the set temperature of the condenser temperature setting unit 1 and sends out an output when the condenser temperature is higher than the set temperature.

Reference numeral 3 denotes an output from the condenser temperature judging means 2 to the voice synthesizing means 5 if it is output.

The operation of the operation control device for a refrigerator configured as described above will be described with reference to FIGS.

In the flowchart of FIG. 4, first, S
At 1, the inside temperature detecting means 101 detects the inside temperature, and
Then, a comparison is made between the detected temperature t and the preset refrigerator internal temperature ts, and the refrigerator internal temperature control means 102 outputs an operation command of the compressor 104 to the compressor control means 103.

If t> ts is not satisfied, the compressor 104 is stopped in S3, the process proceeds to S8, the blower control means 108 sends a blower stop command, the blower 109 is stopped, and the freezing room temperature detection is repeated.

If t> ts, the internal temperature control means 102 outputs an operation command in S4, and the compressor 104 is operated by the compressor control means 103.

Further, in S5, the condensation temperature detecting means 106
The condensing temperature T during the operation of the compressor 104 is detected.

In S6, the detected temperature T is compared with the condenser control temperature Ts by the condensation temperature comparing means 107, and T
If not> Ts, in S8, the blower control means 108 transmits a blower stop command and stops the blower 109.

If T> Ts, then in S7 the blower control means 1
A blower operation command is transmitted to 08 to operate the blower 109.

Next, at S9, the set temperature T1 set by the condenser temperature setting means 1 is read, and at S10, the condenser temperature T is set.
And the condenser set temperature T1 are compared and determined, and in S11, T> T1
It is determined whether or not.

If T> T1 in S11, the determination means 3 sends a signal to the voice synthesizing means 5 in S12, and the voice synthesizing means 5 speaks out that the installation environment of the refrigerator is bad.

As described above, if the installation environment of the refrigerator is poor, the temperature of the condenser becomes high, and the temperature is detected and notified to the user by voice. It is possible to improve the installation environment of the refrigerator without overlooking it, and after the improvement of the installation conditions, the refrigerator can be operated at a low condenser temperature to save energy.

(Embodiment 3) FIG. 5 is a block diagram of a control device of a refrigerator according to a third embodiment of the present invention.
9 is a flowchart for explaining the operation of the refrigerator control device according to the third embodiment of the present invention.

In FIG. 5, the same components as those of the prior art are denoted by the same reference numerals, and description thereof is omitted. In FIG. 5, reference numeral 6 denotes a comparator which changes the condenser control temperature for each outside air temperature and compares the temperature with the condenser temperature.

7 is an outside air temperature detecting means for detecting the outside air temperature;
7 sets the condenser temperature when the installation environment of the refrigerator deteriorates according to the outside temperature, for example, when the back and side surfaces of the refrigerator are covered with a wall, according to the outside temperature, and the set temperature is determined according to the outside temperature. The outside temperature-dependent condenser temperature setting means for setting a higher temperature at each outside air temperature than the control temperature, and the reference numeral 2 designates the condenser temperature detected by the condenser temperature detecting means 106 and the set temperature of the outside temperature-dependent condenser temperature setting means 8. This is a condenser temperature judging means for comparing and outputting an output when the condenser temperature is higher than the set temperature.

Reference numeral 3 indicates that if there is an output from the condenser temperature determination means 2, the display means 4 is turned on to indicate that the refrigerator installation environment is bad, and if there is no output, the display means 4 is turned off and the refrigerator installation environment is good. Is displayed.

The operation of the operation control device for a refrigerator configured as described above will be described with reference to FIGS.

In the flowchart of FIG.
The inside temperature detecting means 101 detects the inside temperature of the refrigerator, compares the detected temperature t with the preset inside temperature ts of the refrigerator in S2, and the compressor control means 103 by the inside temperature control means 102. The operation command of the compressor 104 is output to the

If t ≦ ts, the compressor 104 is stopped in S3, the flow proceeds to S8, the blower control means 108 sends a blower stop command, the blower 109 is stopped, and the freezing room temperature detection is repeated.

If t> ts, the internal temperature control means 102 outputs an operation command in S4, and the compressor control means 103 operates the compressor 104.

Next, in S15, the outside air temperature is detected by the outside air temperature detecting means 7, and in S5, the condensing temperature detecting means 106 detects the condensing temperature T during the operation of the compressor 104.

Next, in S16, the condensation temperature comparison means 107 determines the condenser control temperature Tsa at the outside air temperature detected in S15, compares the detected temperature T with the condenser control temperature Tsa, and must not satisfy T> Tsa. In S8, the blower control means 10
8 transmits a blower stop command to stop the blower 109. If T> Tsa, a blower operation command is transmitted to the blower control means 108 in S7 to operate the blower 109.

If T> Tsa is not satisfied, a blower stop command is sent in S8 to stop the blower 109.

Next, in step S17, the outside temperature set temperature T1a detected in step S15 is read by the outside temperature-dependent condenser temperature setting means 8. This set temperature is obtained by setting the condenser temperature when the installation environment of the refrigerator is deteriorated, for example, when the back and side surfaces of the refrigerator are covered with a wall, according to the outside air temperature, and the set temperature is determined according to the outside air temperature. It is higher than the condenser control temperature at each outside air temperature.

Then, in S10, the condenser temperature T is compared with the condenser set temperature T1a, and in S11, it is determined whether T> T1a.

If T> T1a in S11, the judging means 3 turns on the display means 4 to display that the refrigerator installation environment is bad in S12, and if T> T1a, the judging means 3 displays the display means 4 in S13. Turns off the light and indicates that the refrigerator installation environment is good.

As described above, if the installation environment of the refrigerator is bad at any outside air temperature, the condenser temperature rises, and the temperature is detected and notified to the user. Installation environment can be improved,
After the installation conditions are improved, the refrigerator can be operated at a low condenser temperature to save energy.

(Embodiment 4) FIG. 7 is a block diagram of a control device of a refrigerator according to a fourth embodiment of the present invention.
10 is a flowchart for explaining the operation of the refrigerator control device according to the fourth embodiment of the present invention.

In FIG. 7, the same components as those of the prior art are denoted by the same reference numerals, and description thereof is omitted. In FIG. 7, 1 is a condenser temperature setting means for setting a condenser temperature when the installation environment of the refrigerator is deteriorated, for example, a condenser temperature when the back and side surfaces of the refrigerator are covered with a wall, Reference numeral 2 denotes a condenser temperature determination unit that compares the condenser temperature detected by the condenser temperature detection unit 106 with the set temperature of the condenser temperature setting unit 1 and sends out an output when the condenser temperature is higher than the set temperature.

Reference numeral 9 denotes a counting means for counting if there is an output from the condenser temperature judging means 2, and outputs the signal when a predetermined number of times is reached.

Reference numeral 3 denotes display means 4 if the output of the counting means 9 is available.
Is turned on to indicate that the refrigerator installation environment is bad, and if there is no output, the display means 4 is turned off to indicate that the refrigerator installation environment is good.

The operation of the operation control device for a refrigerator configured as described above will be described with reference to FIGS.

In the flowchart of FIG. 8, first, S
At 1, the inside temperature detecting means 101 detects the inside temperature, and
Then, a comparison is made between the detected temperature t and the preset refrigerator internal temperature ts, and the refrigerator internal temperature control means 102 outputs an operation command of the compressor 104 to the compressor control means 103.

If t> ts, the internal temperature control means 102 outputs an operation command in S4, and the compressor 104 is operated by the compressor control means 103.

Further, in S5, the condensation temperature detecting means 106
The condensing temperature T during the operation of the compressor 104 is detected.

At S6, the detected temperature T is compared with the condenser control temperature Ts by the condensation temperature comparing means 107, and T
If not> Ts, in S8, the blower control means 108 transmits a blower stop command and stops the blower 109.

If T> Ts, then in S7 the blower control means 1
A blower operation command is transmitted to 08 to operate the blower 109.

Next, at S9, the set temperature T1 set by the condenser temperature setting means 1 is read, and at S10, the condenser temperature T is set.
And the condenser set temperature T1. In S20, the counting means 9 determines whether the condensing temperature has become higher than the set temperature T1 and has counted during the operation. If not counted, the process proceeds to S11, and in S11, T> It is determined whether or not it is T1.

If the count has been made, the process proceeds to S23, in which the judging means 3 judges whether or not the count value has reached a predetermined value. Is displayed, and if not T> T1, S13
Then, the judgment means 3 turns off the display means 4 and displays that the installation environment of the refrigerator is good.

If T> T1 in S11, the counting means 9 counts in S21 that the condenser temperature has exceeded the set temperature.
The count at 22 is stored.

Then, in S23, the judging means 3 judges whether or not the count value has reached a predetermined value. If the count value is equal to or more than the predetermined value, the display means 4 is turned on in S12 to indicate that the installation environment of the refrigerator is bad. If it is not T1, the determination means 3 turns off the display means 4 in S13 to display that the installation environment of the refrigerator is good.

If t> ts is not satisfied in S2, the internal temperature control means 102 outputs an operation command in S3 and the compressor control means 1
In step 03, the compressor 104 is stopped.

Then, during the operation of S24, the counting means 9 determines whether or not the condensing temperature has become higher than the set temperature T1 and has counted.

This means that the condenser temperature has never exceeded the set value T1 during the operation of the refrigerator. Therefore, it is determined that the installation environment is not bad, and the count value is cleared.

Then, when the compressor 104 is operated next time, since the count value is cleared, it is determined in S23 that the count value is less than the predetermined number, and it is not displayed that the installation environment is bad.

On the other hand, if counting has been performed, the process proceeds to S26, and S2
The count memory is cleared in 6 and the blower 108 is stopped in S8.

As described above, if the installation environment of the refrigerator is poor, the temperature of the condenser increases, and the temperature is detected.
Detects whether the condenser temperature has exceeded the set temperature by one ON / OFF operation of the refrigerator and counts the number of times. After performing several ON / OFF operations, the count value becomes a predetermined value. Since the above is determined and the user is informed, it is possible to accurately detect the bad use environment of the refrigerator and reduce erroneous determination.

The user can know that the installation environment of the refrigerator is poor, and can improve the installation environment of the refrigerator. After the improvement of the installation conditions, the refrigerator operates the refrigerator at a low condenser temperature. Energy saving can be achieved.

(Embodiment 5) FIG. 9 is a block diagram of a refrigerator control device according to a fourth embodiment of the present invention.
0 is a flowchart for explaining the operation of the refrigerator control device according to the fourth embodiment of the present invention.

In FIG. 9, the same components as those of the prior art are denoted by the same reference numerals, and description thereof is omitted. In FIG. 9, 1 is a condenser temperature setting means for setting a temperature higher than the condenser control temperature when the installation environment of the refrigerator is deteriorated, for example, when the back and side surfaces of the refrigerator are covered with walls. Reference numeral 2 denotes a condenser temperature determination unit that compares the condenser temperature detected by the condenser temperature detection unit 106 with the set temperature of the condenser temperature setting unit 1 and sends out an output when the condenser temperature is higher than the set temperature.

Numeral 9 is a counting means for counting the output of the condenser temperature judging means 2 when there is an output.

Reference numeral 10 compares the condenser temperature with the abnormal temperature which is higher than the temperature set by the condenser temperature setting means 1, and
This is a condenser temperature abnormality judging means for outputting an output when the condenser temperature is higher than the abnormal temperature.

Reference numeral 11 denotes the output of the counting means 9 or the condenser temperature abnormality judging means 10 to turn on the display means 4 to indicate that the installation environment of the refrigerator is bad. If there is no output, the display means 4 is turned off to turn off the refrigerator. This is a determination unit that indicates that the installation environment is good.

The operation of the operation control device for a refrigerator configured as described above will be described with reference to FIGS.

In the flowchart of FIG. 8, first, S
At 1, the inside temperature detecting means 101 detects the inside temperature, and
Then, a comparison is made between the detected temperature t and the preset refrigerator internal temperature ts, and the refrigerator internal temperature control means 102 outputs an operation command of the compressor 104 to the compressor control means 103.

If t> ts, the internal temperature control means 102 outputs an operation command in S4, and the compressor 104 is operated by the compressor control means 103.

Further, in S5, the condensation temperature detecting means 106
The condensing temperature T during the operation of the compressor 104 is detected.

Then, in S6, the detected temperature T and the condenser control temperature Ts are compared by the condensation temperature comparing means 107, and T
If not> Ts, in S8, the blower control means 108 transmits a blower stop command and stops the blower 109.

If T> Ts, then in S7 the blower control means 1
A blower operation command is transmitted to 08 to operate the blower 109.

Next, at S9, the set temperature T1 set by the condenser temperature setting means 1 is read, and at S10, the condenser temperature T is set.
And the condenser set temperature T1.

In S27, the condenser temperature abnormality judging means 10 compares the condenser temperature T with the abnormal temperature T2 which is higher than the temperature set by the condenser temperature setting means 1, and T> T
If it is 2, the determination means 11 turns on the display means 4 in S12 to indicate that the installation environment of the refrigerator is bad.

Next, in S20, the counting means 9 determines whether or not the condensing temperature has become higher than the set temperature T1 and has counted during the operation. If not, the process proceeds to S11.
It is determined whether or not it is T1.

If the count has been made, the process proceeds to S23, and in S23, the judging means 3 judges whether or not the counted value has reached a predetermined value. Is displayed, and if not T> T1, S13
Then, the judgment means 3 turns off the display means 4 and displays that the installation environment of the refrigerator is good.

If T> T1 in S11, the counting means 9 counts in S21 that the condenser temperature has exceeded the set temperature.
The count at 22 is stored.

Then, in S23, the judging means 3 judges whether the count value has reached a predetermined value. If the count value is equal to or more than the predetermined value, the display means 4 is turned on in S12 to indicate that the installation environment of the refrigerator is bad. If it is not T1, the determination means 3 turns off the display means 4 in S13 to display that the installation environment of the refrigerator is good.

If it is not t> ts in S2, the internal temperature control means 102 outputs an operation command in S3 and the compressor control means 1
In step 03, the compressor 104 is stopped.

Then, during the operation of S24, the counting means 9 determines whether or not the condensing temperature has become higher than the set temperature T1 and has counted. If not, the process proceeds to S25, where the counted value is cleared and the process proceeds to S26.

This is because the condenser temperature has never exceeded the set value T1 during the operation of the refrigerator, so that it is determined that the installation environment is not bad and the count value is cleared.

When the compressor 104 is operated next time, since the count value is cleared, it is determined in S23 that the count value is smaller than the predetermined number, and it is not displayed that the installation environment is bad.

If the count has been made, the process proceeds to S26, where S2
The count memory is cleared in 6 and the blower 108 is stopped in S8.

As described above, if the installation environment of the refrigerator is poor, the temperature of the condenser increases, and the temperature is detected.
Detects whether the condenser temperature has exceeded the set temperature by one ON / OFF operation of the refrigerator and counts the number of times. After performing several ON / OFF operations, the count value becomes a predetermined value. In order to judge whether or not the temperature of the condenser is abnormally high, the user is notified without counting if the temperature is abnormally high. Also, when an abnormal state occurs, the user can be notified that the installation environment is bad.

The user can know that the installation environment of the refrigerator is bad, and can improve the installation environment of the refrigerator. After the improvement of the installation conditions, the refrigerator operates the refrigerator at a low condenser temperature. Energy saving can be achieved.

[0112]

As described above, the control device for a refrigerator according to the present invention comprises a condenser for condensing a refrigerant compressed by a compressor and radiating heat to the outside of the refrigerator, and a condenser temperature detecting means for detecting the temperature of the condenser. And a condenser temperature determining means for determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature, and sending an output when the temperature becomes equal to or higher than the predetermined temperature. It has a determination means for determining the installation environment of the refrigerator, and can detect that the condenser is operating at a high temperature.

Further, a condenser for condensing the refrigerant compressed by the compressor and radiating heat to the outside of the refrigerator, a condenser temperature detecting means for detecting the temperature of the condenser, and a condenser temperature detected by the condenser temperature detecting means. A condenser temperature determination unit that determines whether the temperature is equal to or higher than a predetermined temperature, and outputs an output when the temperature is equal to or higher than the predetermined temperature, and a counting unit that counts that the condenser temperature is equal to or higher than the predetermined temperature.
It has a determination means for determining the installation environment of the refrigerator when the count value reaches a predetermined number, and it is possible to accurately detect that the condenser is operating at a high temperature.

Further, an outside air temperature detecting means for detecting the outside air temperature, a condenser for condensing the refrigerant compressed by the compressor and radiating heat to the outside of the refrigerator, a condenser temperature detecting means for detecting the temperature of the condenser, Condenser temperature determination means for determining whether the condenser temperature detected by the condenser temperature detection means is equal to or higher than a predetermined temperature set for each outside air temperature, and sending output when the temperature becomes equal to or higher than the predetermined temperature;
Counting means for counting that the condenser temperature has become equal to or higher than a predetermined temperature, and determining means for determining the installation environment of the refrigerator when the count value has reached a predetermined number, the condenser operates at a high temperature Can be detected at any outside air temperature.

The condenser which condenses the refrigerant compressed by the compressor and radiates heat to the outside of the refrigerator, the condenser temperature detecting means for detecting the temperature of the condenser, and the condenser temperature detected by the condenser temperature detecting means. A condenser temperature judging means for judging whether the temperature is equal to or higher than a predetermined temperature, and sending an output when the temperature becomes equal to or higher than the predetermined temperature; a counting means for counting that the condenser temperature has become equal to or higher than the predetermined temperature; and setting a temperature higher than the predetermined temperature. A condenser temperature abnormality judging means for outputting an output when the temperature becomes equal to or higher than the abnormal temperature, a counting means for counting that the condenser temperature has exceeded a predetermined temperature, and It has a judging means for judging the installation environment of the refrigerator based on the output of the temperature abnormality judging means, which can detect that the condenser is operating at a high temperature, and also detect when the condenser temperature becomes abnormally high. Do Can.

Further, when the determination means determines the installation environment, the display means for displaying the installation environment determination result is provided, so that the user can be notified that the refrigerator installation environment is bad.

Further, when the determining means determines the installation environment, there is provided a voice synthesizing means for notifying the installation environment determination result by voice, so that the user can be notified that the installation environment of the refrigerator is bad without overlooking the user.

[Brief description of the drawings]

FIG. 1 is a block diagram of a control device of a refrigerator according to a first embodiment of the present invention.

FIG. 2 is a flowchart showing an operation according to the first embodiment of the present invention;

FIG. 3 is a block diagram of a refrigerator control device according to a second embodiment of the present invention.

FIG. 4 is a flowchart illustrating an operation according to the second embodiment;

FIG. 5 is a block diagram of a refrigerator control device according to a third embodiment of the present invention.

FIG. 6 is a flowchart illustrating an operation according to the third embodiment;

FIG. 7 is a block diagram of a control device of a refrigerator according to a fourth embodiment of the present invention.

FIG. 8 is a flowchart showing an operation according to the fourth embodiment of the present invention.

FIG. 9 is a block diagram of a control device of a refrigerator according to a fifth embodiment of the present invention.

FIG. 10 is a flowchart showing an operation according to the fifth embodiment of the present invention.

FIG. 11 is a block diagram of a conventional refrigerator control device.

FIG. 12 is a machine room diagram of a conventional refrigerator.

FIG. 13 is a flowchart showing the operation of a conventional refrigerator control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Condenser temperature setting means 2 Condenser temperature judgment means 3 Judgment means 4 Display means 5 Voice synthesis means 7 Outside temperature detection means 8 Condenser temperature setting means according to outside temperature 9 Counting means 10 Condenser temperature abnormality judgment means

 ──────────────────────────────────────────────────の Continuing on the front page (72) Inventor Toshiaki Munemoto 4-5-2-5 Takaida Hondori, Higashiosaka City, Osaka Matsushita Refrigerator Co., Ltd.

Claims (6)

[Claims] 1. A refrigerator capable of freezing, chilling and storing foods, wherein a refrigerator temperature detecting means for detecting a refrigerator temperature, and a temperature control in the refrigerator based on the temperature detected by the refrigerator temperature detecting means. A temperature control means for controlling the inside of the refrigerator, a compressor control means for operating a compressor from an output of the temperature control inside the refrigerator, a condenser for condensing the refrigerant compressed by the compressor and releasing heat to the outside of the refrigerator, Condenser temperature detecting means for detecting the temperature of the condenser, condenser temperature determining means for determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature, and sending an output when the temperature exceeds the predetermined temperature; And a controller for determining the installation environment of the refrigerator when the condenser temperature is equal to or higher than a predetermined temperature. 2. A refrigerator capable of freezing, chilling and storing foods, wherein a refrigerator temperature detecting means for detecting a refrigerator temperature and a temperature control in the refrigerator based on the temperature detected by the refrigerator temperature detecting means. A temperature control means for controlling the inside of the refrigerator, a compressor control means for operating a compressor from an output of the temperature control inside the refrigerator, a condenser for condensing the refrigerant compressed by the compressor and releasing heat to the outside of the refrigerator, Condenser temperature detecting means for detecting the temperature of the condenser, condenser temperature determining means for determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature, and sending an output when the temperature exceeds the predetermined temperature; A control device for a refrigerator, comprising: counting means for counting that the condenser temperature has become equal to or higher than a predetermined temperature; and judging means for judging the installation environment of the refrigerator when the counted value has reached a predetermined number. 3. The refrigerator control device according to claim 1, further comprising a condenser temperature setting means for setting a predetermined temperature of the condenser for each outside air temperature. 4. A refrigerator capable of freezing, chilling and storing foods, wherein a refrigerator temperature detecting means for detecting a refrigerator temperature, and a temperature control in the refrigerator based on the temperature detected by the refrigerator temperature detecting means. A temperature control means for controlling the inside of the refrigerator, a compressor control means for operating a compressor from an output of the temperature control inside the refrigerator, a condenser for condensing the refrigerant compressed by the compressor and releasing heat to the outside of the refrigerator, Condenser temperature detecting means for detecting the temperature of the condenser, condenser temperature determining means for determining whether the condenser temperature detected by the condenser temperature detecting means is equal to or higher than a predetermined temperature, and sending an output when the temperature exceeds the predetermined temperature; Counting means for counting that the condenser temperature has become equal to or higher than a predetermined temperature, and condenser temperature abnormality determination means for outputting an output when the temperature becomes equal to or higher than an abnormal temperature set to a temperature higher than the predetermined temperature,
Counting means for counting that the condenser temperature has become equal to or higher than a predetermined temperature, or when the count value has reached a predetermined number of times,
A refrigerator control device comprising: a determination unit that determines an installation environment of the refrigerator based on an output of the condenser temperature abnormality determination unit. 5. A display unit for displaying an installation environment determination result when the determination unit determines the installation environment.
The control device for a refrigerator according to any one of claims 1 to 4. 6. The refrigerator control device according to claim 1, further comprising a voice synthesizing unit for notifying the installation environment determination result by voice when the determination unit determines the installation environment.