JP2954342B2 - Dehumidifying dryer - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dehumidification-type drying device that blows dehumidified air into a drying chamber to dry an object to be dried.

2. Description of the Related Art As a conventional dehumidification-type drying apparatus, for example, Japanese Unexamined Patent Publication No.
No. 288 is published.

In this example, the air containing moisture in the drying chamber is sucked from a suction port by a blower and cooled by an evaporator to reduce the saturated amount of water vapor. Excess water vapor is condensed and removed on the surface of the evaporator. The dried air from which the moisture has been removed is sent to a condenser by a blower, reheated, and returned to a drying chamber from an outlet. As described above, the air is used for drying laundry and the like in the drying room by circulation of air. When the temperature in the drying chamber is low, a heating element is provided to blow out heated air from the outlet to raise the temperature in the drying chamber, thereby increasing the amount of saturated water vapor of the air in the drying chamber, and providing a sufficient amount of dehumidification. Was to be obtained.

However, in the above configuration, the amount of air that blows out hot air greatly contributes to the capacity of a dehumidifier including an evaporator and a condenser. It will be limited. Therefore, it was impossible to increase the air volume, improve the temperature distribution in the drying chamber, and improve the dehumidifying ability.
In addition, it is difficult to increase the drying capacity of the object to be dried by directly blowing warm air to the object to be dried, such as laundry, by increasing the air volume, and it is difficult to realize a soft finish.

In view of the above problems, the present invention increases the amount of warm air without impairing the performance of the dehumidifier, increases the drying capacity of the drying chamber, increases the drying capacity of the object to be dried, and improves the feel of the object to be dried. It is intended to improve.

Means for Solving the Problems In order to achieve the above object, according to a first aspect of the present invention, a dehumidifier comprising a suction port for sucking air, and an evaporator and a condenser for dehumidifying the air sucked from the suction port. And a variable speed blower that sends out the air that has passed through the dehumidifier,
When a heating element for heating the air sent by the blower and an air outlet for blowing the air sent from the blower are sequentially connected to each other to form a ventilation path, and only the blower and the heating element are operated (warm air mode). ) And the control device which stops the heat generation of the heat generating element, switches the operation to the case where the dehumidifier is operated (dehumidification mode), and makes the rotation speed of the blower different between the hot air mode and the dehumidification mode. The provided dehumidification type drying device was used.

According to a second aspect of the present invention, there is provided a dehumidifying-type drying device which has a temperature detecting means for detecting an indoor temperature as a control device, and controls the dehumidifying device, the blower and the heating element based on the temperature detection result.

According to a third aspect of the present invention, there is provided a dehumidifying device including a dehumidifying suction port, an evaporator and a condenser for dehumidifying air sucked from the dehumidifying suction port, and a dehumidifying device for sending out air dehumidified by the dehumidifying device. A dehumidifying air circuit is provided that sequentially communicates the blower and an outlet that blows out the air sent out by the dehumidifying blower.A heating inlet, a heating blower, and a heating device are provided independently of the dehumidifying air circuit. A heating element for heating the air sucked from the air inlet, and a heating air circuit for sequentially communicating a heating outlet for blowing the air heated by the heating element, and a temperature detecting means for detecting an indoor temperature. The switching operation between the dehumidifying air circuit and the heating air circuit is performed in accordance with the temperature detection result by the above method, and a dehumidifying-type drying apparatus provided with a control device for changing the rotation speeds of the dehumidifying air blower and the heating air blower.

Operation In the first invention of the present invention, when the dehumidifying-type drying device is operated, the blower starts blowing at a high speed by the control device, and the heating element starts generating heat. At this time, the dehumidifier comprising the evaporator and the condenser does not operate. The air in the drying chamber sucked from the suction port by the blower is heated by the heating element, and is sent into the drying chamber at a high speed from the outlet. The above operation is referred to as a warm air mode. After the warm air mode for a certain period of time, the control device stops the heat generation of the heating element, operates the dehumidifier, reduces the wind speed of the blower to the optimal air volume of the dehumidifier, and operates for a certain period. The above operation is referred to as a dehumidification mode. The control device is configured to switch between the hot air mode and the dehumidification mode once or repeatedly.

Therefore, in the dehumidification mode, effective dehumidification can be performed with an air volume optimal for the dehumidification device, and in the warm air mode, heated air can be circulated through the drying chamber in a large amount and at a high speed, and can be directly applied to the object to be dried.

Further, in the second invention, the temperature in the drying chamber detected by the temperature detecting means is determined by the control device, and if the temperature is equal to or higher than the set temperature, the operation is performed in the dehumidification mode; The mode is automatically switched between the hot air mode and the dehumidification mode once or repeatedly.

Therefore, in the dehumidification mode, effective dehumidification can be performed with an air volume optimal for the dehumidification device, and in the warm air mode, heated air can be circulated through the drying chamber in a large amount and at a high speed, and can be directly applied to the object to be dried.

In the third invention, the control device causes the heating blower to start blowing at a high speed and the heating element to start generating heat. The air in the drying chamber sucked from the heating suction port by the heating blower is heated by the heating element and is sent into the drying chamber at a high speed from the heating blowout port. When the temperature in the drying chamber detected by the temperature detecting means becomes lower than the set temperature, the control device starts generating heat from the heating element and operates the heating blower. When the temperature in the drying chamber detected by the temperature detecting means is equal to or higher than the set temperature, the control device stops the heat generation of the heating element and stops the heating blower. Then, the dehumidifying blower blows an optimal amount of air to the dehumidifying device, and the dehumidifying device starts operating. The air in the drying chamber sucked from the dehumidifying suction port by the dehumidifying blower is dehumidified by the evaporator, reheated by the condenser, and sent into the drying chamber from the dehumidifying outlet. Dehumidification suction port, dehumidification device, dehumidification blower, dehumidification air circuit consisting of dehumidification air outlet, heating air inlet, heating element, heating air circuit consisting of heating air outlet are each independent In the dehumidifying air circuit, effective dehumidification can be performed with the optimal air volume for the dehumidifying device.In the heating air circuit, a large amount of high-speed circulated heated air is circulated into the drying chamber, and directly to the material to be dried. You can guess.

Hereinafter, a dehumidifying-type drying apparatus will be described with reference to the drawings, which are one embodiment of the present invention.

First, an embodiment of the first invention will be described with reference to FIGS.

1 and 2, 1 is a suction port, 2 is an evaporator,
Reference numeral 3 denotes a condenser, 4 denotes a blower, 5 denotes a heating element, 6 denotes an outlet, and 7 denotes a drying chamber.

FIG. 2 is a block diagram, in which 8 is a control device, 9 is a dehumidifier, which comprises an evaporator 2 and a condenser 3.

Hereinafter, the control operation will be described with reference to the flowchart of FIG.

When the present dehumidifying dryer is operated, the blower 4 starts blowing at a high speed by the control device 8 (step 10), and the heating element 5 starts generating heat (step 11). At this time, the dehumidifier 9 does not operate. The air in the drying chamber 7 sucked from the suction port 1 by the blower 4 is heated by the heating element 5 and sent into the drying chamber 7 at a high speed from the outlet 6. The above operation is referred to as a hot air mode. The control device 8 determines the elapse of the predetermined time (T1) (step 12), and if "YES", stops the heat generation of the heating element 5 (step 13). Next, the dehumidifier 9 is operated (step 14), the wind speed of the blower 4 is reduced to the optimal air volume of the dehumidifier 9 (step 15), and the elapse of a predetermined time (T2) is determined (step 16). Is the dehumidifier 9
Is stopped (step 17). The above operation is referred to as a dehumidification mode. The control device 8 repeatedly operates the hot air mode and the dehumidification mode. By the above operation, in the dehumidification mode, effective dehumidification can be performed with the optimal air volume for the dehumidifier 9, and in the hot air mode, heated air is circulated into the drying chamber 7 at a high speed in a large amount. Since it can be applied, the drying chamber and the object to be dried can be dehumidified effectively and with good finish.

Next, an embodiment of the second invention will be described with reference to FIGS. 4 to 6. FIG.

4 and 5, 1 is a suction port, 2 is an evaporator,
Reference numeral 3 denotes a condenser, 4 denotes a blower, 5 denotes a heating element, 6 denotes an outlet, and 7 denotes a drying chamber, as in the embodiment of the first invention. 18 is a temperature detecting means, and 19 is a control device.

Hereinafter, the control operation will be described with reference to the flowchart of FIG.

When the dehumidifying dryer is operated, the blower 4 starts blowing at a high speed by the control device 19 (step 20).
Starts heat generation (step 21). At this time, the dehumidifier 9 does not operate. The air in the drying chamber 7 sucked from the suction port 1 by the blower 4 is heated by the heating element 5 and sent into the drying chamber 7 at a high speed from the outlet 6. The above operation is referred to as a hot air mode. The controller 19 determines whether the temperature in the drying chamber 7 is equal to or higher than the set temperature (t1) by the temperature detecting means 18 (step S1).
22) If “YES”, stop the heat generation of the heating element 5 (step 23). The dehumidifier 9 is operated (step 24), and the wind speed of the blower 4 is reduced to the optimal air volume of the dehumidifier 9 (step 24).
25) The controller 19 determines whether the temperature in the drying chamber 7 is lower than the set temperature (t1) by the temperature detecting means 18 (step S1).
26) If “YES”, stop the dehumidifier 9 (Step 2)
7) Yes.

The above operation is referred to as a dehumidification mode. The control device 19 repeatedly operates the hot air mode and the dehumidification mode. With the above operation, in the dehumidification mode, effective dehumidification can be performed with the optimum air volume for the dehumidifier 9, and in the warm air mode, a large amount of heated air is circulated into the drying chamber 7 at a high speed, and directly to the material to be dried. Since it can be applied, the drying chamber and the object to be dried can be dehumidified effectively and with good finish.

Next, an embodiment of the third invention will be described with reference to FIG. 7 to FIG.

7 and 8, reference numeral 28 denotes a suction port for dehumidification, 29 denotes an evaporator, 30 denotes a condenser, 31 denotes a blower for dehumidification, 32 denotes a dehumidification outlet, and 28 to 32 constitute a dehumidification air circuit. doing. 32 is a heating inlet, 34 is a heating element, 35 is a heating blower, 36 is a heating outlet, and 33 to 36 constitute a heating air circuit. 37 is a temperature detecting means, and 38 is a control device. Reference numeral 39 denotes a dehumidifier, which comprises an evaporator 29 and a condenser 30.

Hereinafter, the control operation will be described with reference to the flowchart of FIG.

When the dehumidifying dryer is operated, the controller 38 causes the dehumidifying blower 31 to blow an optimal amount of air to the dehumidifier 39 (Step 40), and the dehumidifier 39 starts operating (Step 41).
The air in the drying chamber 7 sucked from the suction port 28 for dehumidification by the blower 31 for dehumidification is dehumidified by the evaporator 29, and
And is sent to the drying chamber 7 through the dehumidification blowout port 32. When the present dehumidifying dryer is operated, the heating blower 35 starts blowing at a high speed by the control device 38 (step 4).
3) The heating element 34 starts heating (step 44). The air in the drying chamber 7 sucked from the heating suction port 33 by the heating blower 35 is heated by the heating element 34, and is heated by the heating blowout port.
It is sent to the drying chamber 7 at a speed higher than 36. The controller 38 determines whether the temperature in the drying chamber 7 detected by the temperature detecting means 37 is equal to or higher than the set temperature (t1) (step 42). If "YES" is determined, the heat generation of the heating element 34 is stopped (step 46). Then, the heating blower 35 is stopped (step 45). The control device 38 determines whether the temperature in the drying chamber 7 detected by the temperature detecting means 37 is lower than the set temperature (t1) (step 42), and if "YES" is determined, starts heating of the heating element 34 (step 44). Then, the heating blower 35 is operated (step 43). As mentioned above,
Dehumidification suction port 28, dehumidification device 39, dehumidification blower 31,
Dehumidification air circuit consisting of dehumidification blow-off port 32 and heating suction port
33, the heating element 34, and the heating air outlet 36 are provided independently of each other, so that the dehumidifying air circuit can effectively dehumidify the dehumidifier 39 at an optimal air volume. In the circuit, a large amount of heated air can be circulated into the drying chamber at high speed and can be directly applied to the object to be dried, so that the drying chamber and the object to be dried can be effectively and well-dehumidified.

Effect of the Invention Since the present invention has the above-described configuration, in the first invention, it is possible to switch between the case where the control device operates only the blower and the heating element and the case where the dehumidifier is operated, so that the capacity of the dehumidifier is The dehumidification-type drying apparatus can be realized in which the amount of warm air is increased without impairing the drying capacity, the drying capacity of the drying chamber and the drying capacity of the object to be dried are increased, and the feel of the object to be dried is improved.

Further, in the second invention, the case where the indoor temperature detecting means is provided to switch between the case where only the blower and the heating element are operated and the case where the dehumidifying device is operated is switched.

In the third invention, the dehumidifying air circuit and the heating air circuit, which can operate independently, are configured to increase the amount of warm air without impairing the performance of the dehumidifying device, thereby increasing the drying capacity of the drying chamber. Now you can do it.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a dehumidifying dryer showing an embodiment of the first invention of the present invention, FIG. 2 is a block diagram of the dehumidifying dryer,
FIG. 3 is a flow chart showing the same operation, FIG. 4 is a vertical sectional view of a dehumidifying dryer showing an embodiment of the second invention, FIG. 5 is a block diagram of the dehumidifying dryer, and FIG. FIG. 7 is a longitudinal sectional view of a dehumidifying dryer showing an embodiment of the third invention, FIG. 8 is a block diagram of the dehumidifying dryer, and FIG. 9 is a flowchart showing the same operation. DESCRIPTION OF SYMBOLS 1 ... Inlet, 2 ... Evaporator, 3 ... Condenser 4 ... Blower, 5 ... Heating element, 6 ... Outlet 7 ... Drying room, 8, 19, 38 ... Control device 9, 39 ... dehumidifier, 18, 37 ... temperature detecting means 28 ... dehumidification suction port, 29 ... evaporator 30 ... condenser 31 ... dehumidification blower 32 ... dehumidification outlet, 33 ... Heating inlet 34 Heating element 35 Heating blower 36 Heating outlet

Claims (3)

(57) [Claims] 1. A dehumidifier comprising: a suction port for sucking air; an evaporator and a condenser for dehumidifying the air sucked from the suction port; a variable speed blower for sending out the air passing through the dehumidifier; A heating element that heats the air sent by the blower, and an air passage that sequentially communicates with an outlet that blows out the air sent by the blower,
The operation is switched between a case where only the blower and the heating element are operated (hot air mode) and a case where the heat generation of the heating element is stopped and the dehumidifier is operated (dehumidification mode). A dehumidifying-type drying device, characterized in that a control device for varying the number of revolutions of the blower is provided. 2. A control device comprising a temperature detecting means for detecting a temperature in a room, and a dehumidifying device based on a result of the temperature detection.
The dehumidifying-type drying device according to claim 1, wherein the blower and the heating element are controlled. 3. A dehumidifying device comprising a dehumidifying suction port, an evaporator and a condenser for dehumidifying air sucked from the dehumidifying suction port, and a dehumidifying blower for sending out air dehumidified by the dehumidifying device. A dehumidifying air circuit that sequentially communicates with an air outlet that blows out the air sent out by the dehumidifying air blower, and independently of the dehumidifying air circuit, a heating air inlet, a heating air blower, and a heating air inlet. A heating air circuit that sequentially communicates a heating element that heats the air sucked from the mouth and a heating outlet that blows out the air heated by the heating element is provided, and the temperature is detected by a temperature detection unit that detects an indoor temperature. A dehumidifying-type drying device, comprising: a control device that switches between the dehumidifying air circuit and the heating air circuit according to a detection result, and that makes the rotation speeds of the dehumidifying fan and the heating fan different. .