KR0111171Y1 - Apparatus removing frost and for continuously moisturing - Google Patents

Abstract

The present invention relates to a continuous dehumidification device for both dehumidifiers, and when the dehumidifier is full, the water level switch and the humidity of the room to stop the operation of the dehumidifier at the same time to turn on the alarm to alarm the water level, Dehumidifier with an automatic humidity controller to automatically adjust the pressure, an overload relay for stopping the operation of the dehumidifier in the event of an overload, a compressor for cooling the refrigerant to a low temperature, and a starting relay for operating the overcurrent so that the compressor operates normally during initial operation. In the, the temperature sensor 10 for sensing the temperature of the surface of the evaporator 3, the switching unit 20 is switched to defrost operation at the same time dehumidification operation according to the signal detected by the temperature sensor 10 ) And a cold air flow control unit 30 for controlling the flow of cold air according to the switching of the switching unit 20 of the switching unit 20, and the switching of the switching unit 20. Referred to relates to a fan motor 40, a defrost combine continuous dehumidifier made of the rotation direction so as to change the dehumidification / defrosting.

Description

Tertiary combined dehumidifier

1 is a block diagram of a defrost combined continuous dehumidification apparatus according to the present invention.

2 is a detailed circuit diagram of the block diagram shown in FIG.

3 is a view showing a refrigerant circulation cycle of the dehumidifier applied to the present invention.

4 is a flow diagram of air in normal operation of the dehumidifier according to the present invention.

5 is an air flow chart during the defrosting operation of the dehumidifier according to the present invention.

* Explanation of symbols for main parts of the drawings

3: evaporator 10: temperature sensor

20: switching unit 30: cold air flow control unit

40: fan motor 59,75: fixed contact

61, 63, 69: 1st, 2nd, 3rd, 4th solenoid valve 97: Main coil

99: auxiliary coil C1: condenser

The present invention relates to a dehumidifier, and more particularly to a defrost combined continuous dehumidification apparatus capable of removing frost or ice caught in the evaporator of the dehumidifier during operation of the dehumidifier.

The dehumidifier composed of the principle of the conventional refrigeration cycle was frosted in the evaporator during low temperature operation (below 18 ℃), and the frost became thick ice as time passed, eventually reducing the dehumidification effect.

Another conventional dehumidifier to solve this problem is to stop the operation of the dehumidifier and remove the frost or ice caught in the evaporator by the temperature of the indoor air circulated by the circulation fan motor, or by the solenoid valve mounted therein. This altered high temperature and high pressure introduced the refrigerant into the evaporator to remove frost or ice on the evaporator surface.

However, in the conventional dehumidifying apparatus, both of the above methods have a problem in that the circulation fan motor and the dehumidifying operation are stopped during the defrosting operation and the dehumidifying effect is lowered.

Accordingly, the present invention has been made to solve the above problems, and an object of the present invention is to provide a combined dehumidification continuous dehumidification apparatus that can continue dehumidification even when defrosting the frozen frost or frozen ice on the surface of the evaporator.

In order to achieve the above object, the combined dehumidification continuous dehumidification apparatus according to the present invention is to stop the operation of the dehumidifier when the dehumidification container is full and at the same time stop the operation of the dehumidifier by turning on an alarm light, and the water level prevention switch, An automatic humidity controller for automatically controlling the humidity in the room, an overload relay for stopping the operation of the dehumidifier in the event of an overload, a compressor for cooling the refrigerant to a low temperature, and a starting relay for operating an overcurrent so that the compressor is normally driven during initial operation. In the dehumidifier equipped with a temperature sensor for sensing the temperature of the surface of the evaporator, the switching unit for switching to defrost operation at the same time dehumidification operation according to the signal detected by the temperature sensor, and cold air according to the switching of the switching unit Cold air flow control unit for controlling the flow of, and rotates to dehumidify / defrost in accordance with the switching of the switching unit Characterized in that the fan motor is changed in direction.

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

1 is a block diagram of a defrost combined continuous dehumidifying apparatus according to the present invention, FIG. 2 is a detailed circuit diagram of the block diagram shown in FIG. 1, and FIG. 3 is a diagram illustrating a refrigerant circulation cycle of the dehumidifier to which the present invention is applied. 4 is an air flow diagram during normal operation of the dehumidifier according to the present invention, and FIG. 5 is an air flow diagram during defrost operation of the dehumidifier according to the present invention.

In Figures 1 to 5, (17) is a water level preventing switch that operates to stop the operation of the dehumidifier when the dehumidification container 31 is full, and at the same time to turn on the alarm light 29 to alarm the water level, Denoted at 23 is an automatic humidity controller for controlling the humidity level in the room, 41 is an overload relay for stopping the operation of the dehumidifier when the dehumidifier is overloaded, 47 is a compressor for compressing the refrigerant to a low temperature. ) Is a start relay which is linked to the operation of the main switch S / W at the initial start so that an overcurrent flows to the compressor 47 so that the compressor 47 operates normally.

In FIG. 2, reference numeral 10 denotes a temperature sensor for detecting a surface temperature of the evaporator 3, and 20 denotes a surface temperature of the evaporator 3 by the temperature monitoring sensor 10. When the temperature is lower than the preset temperature, the switching unit is configured to switch to perform defrost operation at the same time as the dehumidification operation, and 30 is a cold air flow controller that controls the flow of cold air according to the switching of the switching unit 20, The cold air flow control unit 30, as shown by the solid arrow A in FIG. 3, causes the refrigerant to flow through the compressor 47 during the dehumidification operation and simultaneously cools and compresses the refrigerant compressed to low temperature in the compressor 47. The first and second solenoid valves 61 and 63 controlling the flow in the condenser 85 and the evaporator 3 and the compressor (as indicated by the dotted arrow B in FIG. 3 during defrosting operation) are shown in FIG. The refrigerant, which has been cooled to low temperature in 47, is evaporated (3) and And third and fourth solenoid valves 67 and 69 for controlling the flow to 5) and allowing the refrigerant to flow through the compressor 47. 40 is a fan for the third and fourth solenoid valves (67, 69) of the switching unit 20 is opened, that is, the rotation direction is changed during defrosting operation to perform defrosting operation simultaneously with the dehumidification operation. It is a motor.

Here, the fan motor 40 uses a single-phase induction motor that rotates clockwise during dehumidification operation and counterclockwise during dehumidification / defrost operation.

Hereinafter, the operation of the defrost combined dehumidifying apparatus configured as described above will be described with reference to FIGS. 1 to 5.

As initial conditions, it is assumed that the dehumidification water 33 of the dehumidification container 31 is not full, the humidity is higher than the set humidity, and the surface temperature of the evaporator 3 is higher than the set temperature. In this initial condition, the movable contact 19 of the water level preventing switch 17 is connected to the fixed contact 21, the movable contact 25 of the automatic humidity controller 23 is connected to the fixed contact 25, The movable contact 7 of the temperature sensor 10 is in a state away from the fixed contact 11. At this time, since the movable contact 59 and the fixed contact 65 of the switching unit 20 are connected, and the movable contact 75 and the fixed contact 77 are also connected, the power cord 9 is inserted into the power supply terminal. When the main switch S / W is turned on, the relay operator 55a of the movable relay 55 is urged upward by the overcurrent flowing through the compressor 47.

Accordingly, the first contact of the fixed contact 41a, the movable contact 41b of the overload relay 41, the first contact of the compressor 47 through the water level preventing switch 17 and the automatic humidity controller 23 from the main switch S / W. Compressor starting current flows through the compression coil 47a, and the compressor 47 is started. After the compressor 47 is started, since the normal current flows in the compressor 47, the relay operator 55a of the starter relay 55 falls to the lower side and the water level preventing switch 17 from the main switch S / W. The steady current flows through the automatic humidity controller 23, the fixed contact 41a and the movable contact 41b of the overload relay 41, and the second compression coil 47b of the compressor 47.

At this time, the current flows in the direction of the switching unit 20 at the same time as the current flows in the direction of the compressor 47, in which case the current flows through the movable contact 59 and the fixed contact 65 of the switching unit 20. Current is applied to the first solenoid valve 61 and the second solenoid valve 63. Accordingly, the first solenoid valve 61, the second solenoid valve 61, and the second solenoid valve 63 are opened, and the refrigerant is compressed by the arrow (A) in FIG. 47) → first solenoid valve 61 → condenser 85 → capillary tube 113 → evaporator 3 → second solenoid valve 63 → compressor 47, and dehumidified on the surface of evaporator 3 The action is executed. At the same time, the fan motor 40 is supplied with power to the main coil 97 by connecting the movable contact 75 and the fixed contact 77 of the diseased part 20, as shown in FIG. The power is applied to the series circuit consisting of the auxiliary coil 99 and the capacitor (C1) to rotate the fan motor 40 to rotate the clock 74 in a clockwise direction. Accordingly, as shown in FIG. 4, the fan 74 rotates clockwise in accordance with the normal rotation of the rotor of the fan motor 40, so that the air flows from the evaporator 3 side to the condenser 85 side (arrow A). Direction).

If the surface of the evaporator 3 is supercooled and frost is generated on the surface of the evaporator 3 while the dehumidification operation is performed in this way, the movable contact 7 of the temperature sensor 10 is connected to the fixed contact 11. Since a current flows through the relay coil 13 of the switching unit 20, the movable contact 59 of the switching unit 20 is connected to the fixed contact 71 by the magnetic flux generated from the relay coil 13. The movable contact 75 of the switching unit 20 is connected to the fixed contact 79 to block the input of the electrical signal to the first solenoid valve 61 and the second solenoid valve 63, and at the same time, the third solenoid An electric signal is applied to the valve 67 and the fourth solenoid 69 so that the first solenoid valve 61 and the second solenoid valve 63 are closed, and the solenoid valve 67 and the fourth solenoid valve 69 are closed. Open.

Thus, the refrigerant is compressed by the compressor 47 → the third solenoid valve 67 → the evaporator 3 → the capillary tube 113 → the condenser 85 → the fourth as shown by the dotted arrow B in FIG. The solenoid valve 69 is circulated to the compressor 47, and the evaporator 3 converts the high temperature and high pressure refrigerant into a low temperature and high pressure refrigerant to act as a condenser, and the condenser 85 converts the low temperature and low pressure refrigerant to a high temperature and low pressure. The evaporator converts into a refrigerant, and the condenser 85 serves as an evaporator converting a low temperature low pressure refrigerant into a high temperature low pressure refrigerant. Therefore, the surface of the evaporator (3) is heated by the heat generated by the condensation action of the refrigerant, the frost melts and begins to defrost. On the surface of the condenser (85), the moisture of the indoor air adheres to the surface to dehumidify the condenser The water condensed at 85 is collected in the dehumidifier 119 and then falls into the dehumidifier vat 31. On the other hand, if the dehumidification water collected in the dehumidification container 31 is more than a predetermined level, the position of the buoy (1150) is raised to switch the water level prevention switch 17 to stop the operation of the combined dehumidification continuous dehumidification device at the same time The alarm lamp 29 is turned on.

At this time, since the movable contact 75 and the fixed contact 79 of the switching unit 20 are connected, power is applied to both sides of the auxiliary coil 99, and further, to the main coil 97 and the condenser C1. Power is applied to both axes of the series circuit, and as shown in FIG. 5, the fan motor 40 is rotated counterclockwise so that the fan 74 is rotated counterclockwise so that air is evaporated from the condenser 85. 3) Move in the direction (solid arrow B direction).

When the air moves from the condenser 85 to the evaporator 30 in this way, the condenser 85 acts as an evaporator for converting the low temperature low pressure refrigerant into the high temperature low pressure refrigerant, and thus dehumidification of the air is performed on the surface of the condenser. do.

In addition, the cool air that has passed through the surface of the condenser 85 moves toward the evaporator 3 that generates heat by converting the high temperature and high pressure refrigerant into a low temperature and high pressure refrigerant, thereby cooling the evaporator 30 to dehumidify. According to this dehumidification operation, the frost on the surface of the evaporator is melted by the heat dissipated from the surface of the evaporator 3 and the absorption of moisture continues on the surface of the condenser 85.

In this way, when the defrosting operation of melting the frost on the surface of the evaporator 3 is performed, when the temperature of the surface of the evaporator 3 becomes higher than the set temperature, the defrosting is completed. Thus, the movable contact 7 of the temperature sensor 100 is fixed. Away from contact 11.

Accordingly, the current flowing through the relay coil 13 of the switching unit 20 is interrupted, and at the same time, the movable contact 75 and the fixed contact 77 of the switching unit 20 are connected to supply power to both sides of the main coil 97. At the same time, power is applied to both sides of the series circuit including the auxiliary coil 99 and the condenser C1, and the fan motor 40 is rotated forward to perform the dehumidification operation described above.

As described above, when the evaporator surface temperature is higher than the preset temperature, according to the present invention, when the evaporator surface temperature is higher than the preset temperature, the fan is rotated clockwise to perform only the dehumidification operation, and the indoor air is dehumidified. When the temperature is lower than the preset temperature, the fan is rotated counterclockwise for dehumidification and defrosting to dehumidify indoor air and to remove defrost on the surface of the evaporator. It is a very practical design that can always dehumidify without having to stop the dehumidification operation of the dehumidifier.

Claims (4)

When the dehumidifier is full, the dehumidifier stops the operation and at the same time turns on the alarm lamp to activate the water level warning switch, the automatic humidity controller that automatically controls the humidity in the room, and the operation of the dehumidifier when the overload is stopped. A dehumidifier with an overload relay for cooling, a compressor for cooling the refrigerant to a low temperature, and a start relay for operating an overcurrent so that the compressor operates normally during initial operation, the temperature sensor for sensing the temperature of the surface of the evaporator (3). (10) and the switching unit 20 is switched to defrost operation at the same time the dehumidification operation according to the signal detected by the temperature sensor 10, and the flow of cold air in accordance with the switching of the switching unit 20 Cold air flow control unit 30 to control, and the fan motor 40 is changed in the rotational direction to dehumidify / defrost in accordance with the switching of the switching unit 20 Combine defrost continuous dehumidifier. The method of claim 1, wherein the switching unit 20 is switched to perform defrosting operation simultaneously with the dehumidification operation when the surface temperature of the evaporator (3) sensed by the temperature sensor 10 is lower than a predetermined temperature. Defrost combined dehumidification apparatus characterized in that the switch. The condenser 85 and the evaporator 3 of claim 1, wherein the cold air flow controller 30 allows the refrigerant to flow to the compressor 47 during the dehumidification operation and simultaneously cools and condensed the refrigerant at a low temperature in the compressor 47. The first and second solenoid valves 61 and 63 for controlling the flow to sequentially flow through the evaporator and the refrigerant, which has been cooled and compressed at a low temperature in the compressor 47 during the defrosting operation, to the evaporator 3 and the condenser 85. And a third and fourth solenoid valves (67,69) for controlling the flow in order to flow sequentially to the compressor (47) and the refrigerant to flow to the compressor (47). The defrost combined dehumidifying apparatus according to claim 1, wherein the fan motor (40) is a single-phase induction motor rotating clockwise during dehumidification operation and counterclockwise during dehumidification / defrost operation.