JPH116679A - Controller for filter of condenser - Google Patents

Abstract

PROBLEM TO BE SOLVED: To prevent insufficient cooling due to clogging of a filter from occurring by determining clogging temperature of a filter by an outside temperature detecting device and correctly winding the filter according to change in outside temperature in a control device for a filter of a condenser in a cooling device installed in a refrigerator and the like. SOLUTION: This control device for a filter of a condenser comprises a drive mechanism 8 arranged in the condenser, a condensation temperature detecting means 11 for detecting temperature of the condenser, an outside temperature detecting means 12 for detecting outside temperature and a main control part 10a connected with the drive mechanism 8, the condensation temperature detecting means 11 and the outside temperature detecting means 12 for effecting a control of moving a roll filter by a distance corresponding to a width of the condenser when temperature of the condensation temperature detecting means 11 is higher than clogging temperature determined according to the temperature detected by the outside temperature detecting means 12. Thus, the filter can be wound precisely according to change in outside temperature and high reliability of preventing insufficient cooling due to filter clogging from occurring can be obtained.

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 condenser filter in a cooling device provided in a refrigerator or the like.

[0002]

2. Description of the Related Art For example, a conventional control device for a condenser filter is disclosed in Japanese Utility Model Laid-Open No. 5-8356.

Hereinafter, a conventional control device for a condenser filter will be described with reference to the drawings.

FIG. 9 is a refrigerant circuit diagram of a conventional condenser filter control device. FIG. 10 is a functional block diagram of a conventional condenser filter control device.

In FIGS. 9 and 10, 1 is a compressor, 2 is a condenser, 3 is a cooler, 4 is a fan motor for cooling the condenser 2, and 5 is a filter disposed on the suction side of the condenser 2. ,
Reference numeral 6 denotes a roll on which the filter is wound, 7 denotes a roll on which the filter is wound, 8 denotes a drive mechanism which is connected to the roll 7 on the wind side via a belt and is driven by a motor 8a, and 9 denotes a drive mechanism. A temperature sensor 10 for detecting the temperature of the refrigerant gas discharged from the compressor 1 to the condenser 2 is connected to the drive mechanism 8 and the temperature sensor 9 and is a main control unit for winding the filter.

The operation of the control device for a condenser filter configured as described above will be described below with reference to FIG.

FIG. 11 is a flowchart of a conventional control device for a condenser filter. In FIG. 11, the temperature sensor 9 detects the temperature of the refrigerant gas (STEP 01). Next, when the temperature 9 of the temperature sensor reaches or exceeds a predetermined temperature, the driving mechanism 8
Is operated for a predetermined time, the filter 5 is wound around the roll 7 by the width of the condenser 2 (STEP 02).

[0008]

However, in the above-mentioned conventional configuration, when the outside air temperature rises with only the temperature sensor 9 and the discharge gas temperature rises, the filter 5 is not used.
However, there is a drawback that the filter 5 is erroneously detected as clogged in the filter 5 even when the filter 5 is not clogged.

The present invention solves the above-mentioned drawbacks of the prior art. An outside air temperature detecting device determines the clogging temperature of a filter, and winds up the filter accurately in response to a change in the outside air temperature. An object of the present invention is to provide a control device for a condenser filter that prevents poor cooling.

Another object of the present invention is to use a timer device to periodically wind up the filter even when the temperature of the condensation temperature detection device is lower than the clogging temperature.
An object of the present invention is to provide a control device for a condenser filter which always keeps a state in which filter clogging is small and prevents poor cooling due to filter clogging.

Still another object of the present invention is to determine the winding time of the filter from the setting states of the timer device and the setting device, perform the winding of the filter periodically, and always keep the filter clogging little. Another object of the present invention is to provide a condenser filter control device that prevents a cooling failure due to filter clogging.

Still another object of the present invention is to turn on a replacement lamp when the number of windings of the filter stored in the storage device reaches a set value and the temperature of the condensation temperature detecting device is higher than the set value. It is an object of the present invention to provide a control device for a condenser filter which can notify the replacement of a condenser.

[0013]

In order to achieve this object, the present invention provides a cooling device for forming a refrigerating cycle by sequentially connecting a compressor, a condenser, and a cooler, and a cooling device arranged side by side with the condenser. Roll-type filter, drive mechanism for winding the roll-type filter, condensation temperature detection device for detecting the temperature of the condenser, outside temperature detection device for detecting the outside temperature, drive mechanism, condensation temperature detection device, outside temperature detection It comprises a main control unit connected to the device.

Thus, the clogging temperature of the filter is determined by the outside air temperature detecting device, the filter can be accurately wound in response to the change in the outside air temperature, and the cooling failure due to the clogging of the filter can be prevented.

Further, a timer device connected to the main control unit is provided. Thereby, even when the temperature of the condensation temperature detecting device is lower than the clogging temperature,
The filter is wound up regularly, so that the filter is kept in a state in which clogging of the filter is always small, and poor cooling due to clogging of the filter can be prevented.

Further, a setting device connected to the main control unit is provided together with the timer device.

[0017] Thus, the winding time of the filter is determined based on the setting state of the timer device and the setting device, and the winding of the filter is periodically performed. Poor cooling can be prevented.

Further, an exchange lamp is provided in front of the condenser, and a storage device for storing the number of windings of the filter connected to the main control unit is provided.

Thus, when the number of windings of the filter stored in the storage device reaches the set value and the temperature of the condensation temperature detecting device is higher than the clogging temperature, the replacement lamp is turned on to notify the user of the replacement of the filter. Can be.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The invention according to claim 1 of the present invention is directed to a cooling device for forming a refrigeration cycle by sequentially connecting a compressor, a condenser, and a cooler, and being provided side by side with the condenser. A roll-type filter, a drive mechanism for winding the roll-type filter, a condensation temperature detection device for detecting the temperature of the condenser, an outside air temperature detection device for detecting the outside air temperature, the drive mechanism, and the condensation temperature detection. When the temperature of the condensing temperature detecting device is higher than the clogging temperature, the driving mechanism is operated for a predetermined time to move the roll-type filter by the width of the condenser. It consists of a main control unit that controls
This has the effect of winding up the filter accurately in response to changes in the outside air temperature and preventing poor cooling due to clogging of the filter.

According to a second aspect of the present invention, in addition to the first aspect of the present invention, a timer device connected to a main control unit is further provided.
Even when the temperature is lower than the clogging temperature determined from the temperature detected by the outside air temperature detection device, the filter is regularly wound up to keep the filter clogged at a low level, and the cooling failure due to the clogging of the filter is reduced. It has the effect of preventing.

According to a third aspect of the present invention, in addition to the second aspect of the present invention, a setting device connected to a main control unit is further provided, and a filter is set based on a setting state of the timer device and the setting device. It has an effect of judging the winding time of the filter, periodically winding the filter, keeping the filter with little clogging, and preventing cooling failure due to clogging of the filter.

According to a fourth aspect of the present invention, in addition to the first aspect of the present invention, an exchange lamp disposed in front of the condenser and a number of windings of a filter connected to a main control unit are stored. A storage device, wherein the number of windings of the filter stored in the storage device reaches a set value, and the temperature of the condensation temperature detection device is determined from the detected temperature of the outside air temperature detection device. When the temperature is higher than the clogging temperature, the replacement lamp is turned on to notify the replacement of the filter.

An embodiment of a control device for a condenser filter according to the present invention will be described below with reference to the drawings. The same components as those in the related art are denoted by the same reference numerals, and detailed description is omitted.

(Embodiment 1) FIG. 1 is a functional block diagram of a control device for a condenser filter according to Embodiment 1 of the present invention. FIG. 2 is a flowchart showing the operation of the embodiment.

In FIG. 1, reference numeral 8 denotes a driving mechanism provided in the condenser 2, reference numeral 11 denotes a condensing temperature detecting device for detecting the temperature of the condenser 2, reference numeral 12 denotes an outside air temperature detecting device for detecting the outside air temperature, and driving mechanism 8. When the temperature of the condensation temperature detection device 11 is higher than the clogging temperature determined from the detection temperature of the outside temperature detection device 12, the drive mechanism 8 is connected to the condensation temperature detection device 11 and the outside air temperature detection device 12. The main control unit 10a controls to move the roll filter 5 by the width of the condenser 2 by operating for a time. The clogging temperature is set in the main control unit 10a for each outside air temperature.

The operation of the condenser filter control device constructed as described above will be described below with reference to the flowchart of FIG.

First, in step 11, the main controller 10a detects the temperature by the outside air temperature detector 12. Next, in step 12, the main control unit 10a detects the temperature by the condensation temperature detecting device 11. Next, in step 13, the main control unit 10a determines the clogging temperature based on the temperature of the outside air temperature detection device 12. Next, in step 14, when the condensing temperature detecting device 11 detects that the clogging temperature is higher than the clogging temperature, the main control unit 10a operates the driving mechanism 8 for a predetermined time and moves the roll filter 5 by the width of the condenser 2.

As described above, the control device for the condenser filter according to the present embodiment includes the drive mechanism 8 provided in the condenser 2.
And a condensation temperature detecting device 11 for detecting the temperature of the condenser 2
And an outside air temperature detecting device 12 for detecting the outside air temperature, a driving mechanism 8, a condensing temperature detecting device 11, and an outside air temperature detecting device 12. The temperature of the condensing temperature detecting device 11 is detected by the outside air temperature detecting device 12. When the temperature is higher than the clogging temperature determined from the temperature, the main control unit 10a controls the movement of the roll filter 5 by the width of the condenser 2 by operating the driving mechanism 8 for a predetermined time. The winding of the filter 5 corresponding to the change in the outside air temperature can be performed accurately, and the cooling failure due to the clogging of the filter 5 can be prevented.

(Embodiment 2) FIG. 3 is a functional block diagram of a control device for a condenser filter according to Embodiment 2 of the present invention. FIG. 4 is a flowchart showing the operation of the embodiment.

Reference numeral 13 denotes a timer device connected to the main control unit 10b. The present embodiment is different from the condenser filter control device according to Embodiment 1 in further including a main control unit 10b.
Is provided with a timer device 13 connected to.

The operation of the control device for the condenser filter constructed as described above will be described below with reference to the flowchart of FIG.

First, at step 21, the main control unit 10b checks the time from the start of operation by the timer device 13. Next, in step 22, when the main control unit 10b detects that a predetermined time has elapsed, the main control unit 10b operates the drive mechanism 8 for a predetermined time and moves the roll-type filter 5 by the width of the condenser 2. When the main control unit 10b detects that the predetermined time has not elapsed in step 22, the main control unit 10b detects the temperature by the outside air temperature detection device 12 in step 11.

Next, in step 12, the main controller 10b detects the temperature by the condensation temperature detector 11. Next, in step 13, the main control unit 10a determines the clogging temperature based on the temperature of the outside air temperature detection device 12. Next, in step 14, when the condensation temperature detecting device 11 detects that the condensation temperature is equal to or higher than the clogging temperature, the main control unit 10ba operates the drive mechanism 8 for a predetermined time and moves the roll filter 5 by the width of the condenser 2.

As described above, the control device for the condenser filter according to the present embodiment includes the timer device 13 connected to the main control unit 10b. Even at lower levels,
The winding of the filter 5 is periodically performed, and the clogging of the filter 5 is always kept small, so that the cooling failure due to the clogging of the filter 5 can be prevented.

(Embodiment 3) FIG. 5 is a functional block diagram of a condenser filter control device according to Embodiment 3 of the present invention. FIG. 6 is a flowchart showing the operation of the embodiment.

Reference numeral 14 denotes a setting device connected to the main control unit 10c. In the present embodiment, the setting device 14 connected to the main control unit 10c is further provided in the condenser filter control device according to the second embodiment.

The operation of the control device for the condenser filter constructed as described above will be described below with reference to the flowchart of FIG.

First, in step 31, the main control unit 10c checks the set time by the setting device 14. Then step 2
At 1, the main controller 10c checks the time from the start of operation by the timer device 13. Next, in Step 32, when the main control unit 10c detects that the set time has elapsed, the drive mechanism 8
Is operated for a predetermined time, and the roll-type filter 5 is
Move by the width of. In step 32, the main control unit 1
When 0c detects that the set time has not elapsed, the main control unit 10b detects the temperature with the outside air temperature detection device 12 in step 11. Next, in step 12, the main controller 10b detects the temperature by the condensation temperature detector 11. Next, in step 13, the main control unit 10a determines the clogging temperature based on the temperature of the outside air temperature detection device 12. Next, in step 14, when the condensing temperature detecting device 11 detects that the condensing temperature is equal to or higher than the clogging temperature, the main control unit 10ba operates the driving mechanism 8 for a predetermined time and moves the roll filter 5 by the width of the condenser 2.

As described above, the control device for the condenser filter according to the present embodiment comprises the setting device 14 connected to the main controller 10c. The winding time of the filter 5 is determined, and the winding of the filter 5 is periodically performed.
It is possible to always keep the filter 5 with little clogging and to prevent poor cooling due to the clogging of the filter 5.

(Embodiment 4) FIG. 7 is a functional block diagram of a control device for a condenser filter according to Embodiment 4 of the present invention. FIG. 8 is a flowchart showing the operation of the embodiment.

Reference numeral 15 denotes a storage device connected to the main control unit 10d. In the present embodiment, a storage device 15 connected to the main control unit 10d is further provided in the condenser filter control device according to the first embodiment.

The operation of the control device for a condenser filter constructed as described above will be described below with reference to the flowchart of FIG.

First, in step 11, the main controller 10d detects the temperature by the outside air temperature detector 12. Next, in step 12, the main controller 10d detects the temperature by the condensation temperature detector 11. Next, in step 13, the main control unit 10d determines the clogging temperature based on the temperature of the outside air temperature detection device 12. Next, in Step 14, when the main control unit 10d detects that the condensation temperature detecting device 11 is higher than the clogging temperature, the main control unit 10d checks the number of windings of the filter 5 of the drive mechanism 8 in Step 41.

Next, at step 42, when the main control unit 10d detects that the number of windings of the filter 5 is equal to or more than the predetermined number, the main control unit 10d turns on the replacement lamp 16. Step 42
When the main control unit 10d does not detect that the number of windings of the filter 5 is equal to or more than the predetermined number, the main control unit 10d operates the driving mechanism 8 for a predetermined time and moves the roll-type filter 5 by the width of the condenser 2.

As described above, the control device for the condenser filter according to the present embodiment is provided in front of the condenser with the storage device 15 for storing the number of windings of the filter 5 connected to the main controller 10d. Since it is composed of the replacement lamp 16, the number of windings of the filter 5 stored in the storage device 15 has reached the set value, and the temperature of the condensation temperature detection device 11 has been set from the outside temperature detection device 12. When the temperature is higher than the clogging temperature, the replacement lamp 16 is turned on to notify the replacement of the filter 5.

[0047]

As described above, the present invention provides a drive mechanism provided in a condenser, a condensation temperature detection device for detecting the temperature of the condenser, an outside temperature detection device for detecting the outside temperature, and a drive. When the temperature of the condensation temperature detection device is higher than the clogging temperature determined from the detection temperature of the outside air temperature detection device, the driving mechanism is connected to the mechanism, the condensation temperature detection device, and the outside air temperature detection device, and operates the driving mechanism for a predetermined time. The main control unit that controls the roll-type filter to move by the width of the condenser is provided, so that the filter can be accurately wound in response to changes in the outside air temperature and prevent poor cooling due to filter clogging. Can be.

Further, by providing a timer device connected to the main control unit, even when the temperature of the condensing temperature detecting device is lower than the clogging temperature, the winding of the filter is performed periodically to prevent oil contaminants. Even in the case of clogging or clogging due to powder, etc., always keep the filter less clogged and wind up the filter early, improving the heat exchange efficiency of the condenser and clogging the filter. In addition to the above, it is possible to prevent poor cooling due to the above and to cope with an abnormality of the condensation temperature detecting device.

Further, by providing a setting device connected to the main control unit, the winding time of the filter is determined based on the setting state of the timer device and the setting device, and the winding of the filter is performed periodically. It is possible to maintain a state in which filter clogging is small, and to prevent poor cooling due to filter clogging.

Further, since the storage unit is connected to the main control unit and stores the number of times of winding of the filter, and the replacement lamp is provided in front of the condenser,
When the number of windings of the filter stored in the storage device reaches the set value and the temperature of the condensation temperature detection device is higher than the clogging temperature determined from the detection temperature of the outside air temperature detection device, the replacement lamp is turned on, You can be notified of the replacement of the filter.

[Brief description of the drawings]

FIG. 1 is a functional block diagram of Embodiment 1 of a condenser filter control device according to the present invention.

FIG. 2 is a flowchart showing the operation of the condenser filter control device of the embodiment.

FIG. 3 is a functional block diagram of Embodiment 2 of a control device for a condenser filter according to the present invention;

FIG. 4 is a flowchart showing the operation of the condenser filter control device of the embodiment.

FIG. 5 is a functional block diagram of Embodiment 3 of a control device for a condenser filter according to the present invention;

FIG. 6 is a flowchart showing an operation of the condenser filter control device according to the embodiment;

FIG. 7 is a functional block diagram of Embodiment 4 of a control device for a condenser filter according to the present invention;

FIG. 8 is a flowchart showing the operation of the condenser filter control device of the embodiment.

FIG. 9 is a refrigerant circuit diagram of a conventional condenser filter control device.

FIG. 10 is a functional block diagram of a conventional condenser filter control device.

FIG. 11 is a flowchart showing the operation of a conventional condenser filter control device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Compressor 2 Condenser 3 Cooler 5 Roll type filter 8 Drive mechanism 10a, 10b, 10c, 10d Main control part 11 Condensing temperature detecting device 12 Outside air temperature detecting device 13 Timer device 14 Setting device 15 Storage device 16 Exchange lamp

Claims (4)

[Claims] 1. A cooling device for sequentially connecting a compressor, a condenser, and a cooler to form a refrigeration cycle, a roll-type filter arranged in the condenser, and a drive for winding the roll-type filter. A condensing temperature detecting device for detecting a temperature of the condenser, an outside air temperature detecting device for detecting an outside air temperature, the driving mechanism, the condensing temperature detecting device, and the outside air temperature detecting device; When the temperature of the temperature detection device is higher than the clogging temperature determined from the detection temperature of the outside air temperature detection device, control for moving the roll-type filter by the width of the condenser by operating the drive mechanism for a predetermined time. A control device for a condenser filter comprising a main control unit. 2. A timer device connected to the main control unit is provided, and even when the temperature of the condensation temperature detection device is lower than the clogging temperature determined from the detection temperature of the outside air temperature detection device, the driving mechanism is preferentially activated. The condenser filter control device according to claim 1, wherein the roll-type filter is periodically moved by a width of the condenser by operating for a predetermined time. 3. A setting device connected to the main control unit is provided,
Even if the temperature of the condensing temperature detecting device is lower than the clogging temperature determined from the detected temperature of the outside air temperature detecting device, the drive mechanism is preferentially operated for a predetermined period of time, so that the roll-type filter is set for each set cycle. 3. The control device for a condenser filter according to claim 2, wherein the controller is moved by the width of the condenser. 4. An exchange lamp disposed in front of the condenser,
A storage device that is connected to the main control unit and stores the number of times of winding of the filter, wherein the number of times of winding of the filter becomes a set value, and the temperature of the condensation temperature detecting device is determined from the detected temperature of the outside air temperature detecting device. The control device for a condenser filter according to claim 1, wherein the replacement lamp is turned on when the temperature is higher than the clogging temperature.