KR20170061935A - Control device of the inverter dehumidifier - Google Patents
Control device of the inverter dehumidifier Download PDFInfo
- Publication number
- KR20170061935A KR20170061935A KR1020150167140A KR20150167140A KR20170061935A KR 20170061935 A KR20170061935 A KR 20170061935A KR 1020150167140 A KR1020150167140 A KR 1020150167140A KR 20150167140 A KR20150167140 A KR 20150167140A KR 20170061935 A KR20170061935 A KR 20170061935A
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- KR
- South Korea
- Prior art keywords
- temperature
- evaporator
- region
- inverter compressor
- inverter
- Prior art date
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- F24F11/0015—
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- F24F11/0012—
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- F24F11/0086—
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- F24F11/02—
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
- F24F3/00—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems
- F24F3/12—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling
- F24F3/14—Air-conditioning systems in which conditioned primary air is supplied from one or more central stations to distributing units in the rooms or spaces where it may receive secondary treatment; Apparatus specially designed for such systems characterised by the treatment of the air otherwise than by heating and cooling by humidification; by dehumidification
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Drying Of Gases (AREA)
- Air Conditioning Control Device (AREA)
Abstract
A control device for an inverter dehumidifier is disclosed. An apparatus for controlling an inverter dehumidifier according to the present invention comprises: an evaporator temperature sensor for sensing a temperature of an evaporator; An inverter compressor for compressing and circulating the refrigerant transferred from the evaporator; And a controller for controlling the number of revolutions and on / off of the inverter compressor to correspond to a plurality of temperature ranges according to an evaporator temperature input from the evaporator temperature sensor.
Description
BACKGROUND OF THE
In general, a dehumidifier is a device used for lowering the humidity of an indoor space. The dehumidifier is installed in a case that forms an outer shape, a fan installed inside the case and sucking the outside air, and moisture contained in the inhaled air is condensed to remove moisture And a water storage tank in which moisture removed from the dehumidifying means is stored.
Wherein the dehumidifying means includes a compressor for compressing the gaseous refrigerant to a high pressure, a condenser for condensing the high-temperature and high-pressure refrigerant discharged from the compressor, and a low-temperature low-pressure refrigerant discharged from the condenser, And an evaporator which evaporates and evaporates to cool the surroundings.
These dehumidifiers are manufactured using various dehumidifying methods. In most cases, when the air passes through the evaporator by using a refrigeration cycle, the moisture in the air condenses and the surrounding heat is taken away to remove the moisture in the air. Dehumidifiers are widely used.
Therefore, when the air in the indoor space is allowed to pass through the evaporator in the main body, the moisture contained in the air condenses on the surface of the evaporator, thereby dehumidifying. Also, the dehumidified air passes through the condenser to condense the refrigerant passing through the condenser. Since the dehumidified air absorbs heat from the refrigerant of the condenser while passing through the condenser, the air in the indoor space passes through the body, At the same time, the temperature rises.
Generally, since the rotation speed of the compressor is constant by using the constant speed compressor, the dehumidifier can be controlled only to the extent that the compressor is turned on and off according to the cooling load.
Therefore, when the dehumidifier is driven under a low load of low temperature and low humidity, there is a problem that the evaporator is frozen because the temperature of the evaporator is lowered due to the change in the outside temperature. Therefore, there is a problem that the dehumidification efficiency of the dehumidifier is reduced at a low load.
Background Art of the Invention There is a "dehumidifier and its control method ", Korean Patent Laid-Open Publication No. 10-2015-0091681 (published on Aug. 20, 2015).
According to an aspect of the present invention, there is provided a refrigeration system for a refrigerator, including: a refrigerator having a plurality of refrigerators, And to provide a control device for the inverter dehumidifier.
A control method of an inverter dehumidifier according to an aspect of the present invention includes: an evaporator temperature sensor for sensing a temperature of an evaporator; An inverter compressor for compressing and circulating the refrigerant transferred from the evaporator; And a controller for controlling the number of revolutions and on / off of the inverter compressor to correspond to a plurality of temperature ranges according to an evaporator temperature input from the evaporator temperature sensor.
In the present invention, the plurality of temperature zones may include a first zone that is a zone below a first set temperature, a second zone that is a zone that is above the first set temperature and that is below a second set temperature, A third region that is an area below the third set temperature, and a fourth region that is an area that exceeds the third set temperature.
In the present invention, when the evaporator temperature input from the evaporator temperature sensor falls below a second set temperature, the controller enters the freeze prevention mode and controls the inverter compressor to a low RPM.
In the present invention, the controller controls the inverter compressor to be in the OFF state when the evaporator temperature input from the evaporator temperature sensor belongs to the first region.
In the present invention, the controller controls the inverter compressor to at least one of low RPM driving and off driving when the evaporator temperature belongs to at least one of the second region and the third region.
In the present invention, the controller receives the evaporator temperature from the evaporator temperature sensor at preset time intervals.
In the present invention, the control unit resets the set time when the inverter compressor is controlled to be in an off state, and resets the set time when the inverter compressor is controlled to a low RPM .
The controller of the inverter dehumidifier according to an embodiment of the present invention can control freezing of the evaporator by varying the number of rotations of the compressor according to the temperature and time of the evaporator at low load.
Further, the present invention enables efficient dehumidification even under a low load, thereby improving the satisfaction of the user.
Further, by using the inverter compressor, the present invention can positively cope with a change in the load, so that the electric charge can be reduced and the noise can be reduced.
1 is a cross-sectional view illustrating an inverter dehumidifier according to an embodiment of the present invention.
FIG. 2 is a block diagram illustrating a controller of an inverter dehumidifier according to an embodiment of the present invention. Referring to FIG.
3 to 4 are views for explaining a control method of the inverter dehumidifier according to an embodiment of the present invention.
Hereinafter, an apparatus for controlling an inverter dehumidifier according to an embodiment of the present invention will be described with reference to the accompanying drawings. In this process, the thicknesses of the lines and the sizes of the components shown in the drawings may be exaggerated for clarity and convenience of explanation. In addition, the terms described below are defined in consideration of the functions of the present invention, which may vary depending on the intention or custom of the user, the operator. Therefore, definitions of these terms should be made based on the contents throughout this specification.
FIG. 1 is a cross-sectional view illustrating an inverter dehumidifier according to an embodiment of the present invention. FIG. 2 is a block diagram illustrating a controller of an inverter dehumidifier according to an embodiment of the present invention. As follows.
1, an inverter dehumidifier 100 according to an embodiment of the present invention includes a
The
The blowing
The
The
The dehumidified air having passed through the
On the other hand, in the process of realizing the refrigeration cycle, when the outside air is in a low load state such as low temperature and low humidity, there is a problem that the temperature of the evaporator is frozen.
The controller of the inverter dehumidifier according to an embodiment of the present invention will be described.
2, the controller of the inverter dehumidifier according to an embodiment of the present invention includes an
The
The
The
At this time, a plurality of temperature regions are divided into a first region that is a region below the first set temperature, a second region that is a region that exceeds the first set temperature and that is below the second set temperature, And a fourth region that is an area exceeding the third set temperature. Here, the second set temperature may be set to a temperature that is a condition for entering the freeze prevention mode, and the first set temperature may be set to a temperature lower than the first set temperature, and a criterion for controlling the
For example, the first set temperature may be set at 1 占 폚, the second set temperature set at 5 占 폚, and the third set temperature set at 12 占 폚.
Accordingly, the
Specifically, after the initial driving of the dehumidifier 100, when the evaporator temperature input from the
When the evaporator temperature detected by the
On the other hand, when the evaporator temperature reaches the third region, the
That is, when the evaporator temperature belongs to at least one of the second region and the third region, the
In addition, when the evaporator temperature reaches the fourth region, the
Meanwhile, the
Therefore, when the evaporator temperature is low, the
In addition, the
When the
Hereinafter, a method of controlling the inverter dehumidifier according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.
3 to 4 are views for explaining a control method of the inverter dehumidifier according to an embodiment of the present invention, and a control method of the inverter dehumidifier will be described with reference to FIG.
3, when the dehumidifier 100 is powered on, the
Next, the
At this time, if the evaporator temperature falls below the second set temperature, the
In step S20, the
At this time, a plurality of temperature regions are divided into a first region that is a region below the first set temperature, a second region that is a region that exceeds the first set temperature and that is below the second set temperature, And a fourth region that is an area exceeding the third set temperature. Here, the second set temperature may be set to a temperature that is a condition for entering the freeze prevention mode, and the first set temperature may be set to a temperature lower than the first set temperature, and a criterion for controlling the
For example, the first set temperature may be set at 1 占 폚, the second set temperature set at 5 占 폚, and the third set temperature set at 12 占 폚.
Accordingly, the
That is, when the evaporator temperature input from the
If the
If it is determined in step S40 that the
4, if the
That is, when the evaporator temperature input from the
At this time, the
When the
Accordingly, when the
As described above, the controller of the inverter dehumidifier according to an embodiment of the present invention can prevent freezing of the evaporator by variably controlling the number of revolutions of the compressor according to temperature and time of the evaporator at low load.
Further, the present invention enables efficient dehumidification even under a low load, thereby improving the satisfaction of the user.
Further, by using the inverter compressor, the present invention can positively cope with a change in the load, so that the electric charge can be reduced and the noise can be reduced.
While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it will be understood by those of ordinary skill in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined by the appended claims. I will understand.
Accordingly, the true scope of the present invention should be determined by the following claims.
100: dehumidifier 110:
110a:
111: Outside temperature sensor 120:
121: guide duct 123: fan
125: Fan motor 130:
140: cooling system 141: inverter compressor
143: condenser 145: evaporator
145a: Evaporator temperature sensor
Claims (7)
An inverter compressor for compressing and circulating the refrigerant transferred from the evaporator; And
And a controller for controlling the number of revolutions and on / off of the inverter compressor to correspond to a plurality of temperature ranges according to an evaporator temperature input from the evaporator temperature sensor.
Wherein the plurality of temperature zones comprise:
A first region that is a region that is a region below the first set temperature, a second region that is a region that exceeds the first set temperature and that is equal to or less than the second set temperature, And a fourth region which is an area exceeding the third set temperature.
Wherein,
Wherein when the evaporator temperature input from the evaporator temperature sensor falls below a second set temperature, the inverter enters a freeze prevention mode and controls the inverter compressor to a low RPM.
Wherein,
And controls the inverter compressor to be in the off state when the evaporator temperature inputted from the evaporator temperature sensor belongs to the first region.
Wherein,
Wherein the control unit controls the inverter compressor to at least one of low RPM driving and off driving when the evaporator temperature belongs to at least one of the second region and the third region.
Wherein,
Wherein the evaporator temperature sensor receives the evaporator temperature from the evaporator temperature sensor at preset time intervals.
Wherein,
Wherein when the inverter compressor is controlled to be in an off state, the set time is accumulated, and when the inverter compressor is controlled to a low RPM, the set time is reset.
Priority Applications (1)
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KR1020150167140A KR20170061935A (en) | 2015-11-27 | 2015-11-27 | Control device of the inverter dehumidifier |
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KR1020150167140A KR20170061935A (en) | 2015-11-27 | 2015-11-27 | Control device of the inverter dehumidifier |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200012244A (en) * | 2018-07-26 | 2020-02-05 | 엘지전자 주식회사 | Dehumidifier |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20200012244A (en) * | 2018-07-26 | 2020-02-05 | 엘지전자 주식회사 | Dehumidifier |
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