JPH0351089A - Clothing drier - Google Patents

Abstract

PURPOSE:To extract dried objects in the state immediately after the completion of drying even if dried objects can not be extracted immediately after the completion of the drying operation by setting the extraction time of dried objects, and controlling the operation so that the clothing is kept in the warm state at the preset time. CONSTITUTION:A means controlling the operation so that dried objects are kept in the warm state at the time set by a time setting means is provided. The operation is controlled so that dried objects are kept in the warm state at the extraction time. Dried objects can be kept in the state immediately after the completion of drying, thus dried objects can be kept in the soft feeling, warmth, and crisply dry finished feeling which are advantages peculiar to a drier. As the temperature of dried objects is decreased, warmth and crisply dry finished feeling by moisture absorption are lost in particular.

Description

[Detailed description of the invention] C Industrial application field] The present invention relates to the operation of clothes dryers.

[Conventional technology]

Clothes dryers are generally divided into two types: those that are left as they are after the drying operation is completed, or those that operate to blow air intermittently for a preset period of time.

In either case, if it takes a long time to take out the clothes to be dried after the drying operation ends (for example, if you start the operation before going to bed and take them out in the morning), the fluffy feeling that is unique to clothes dryers immediately after drying ends. , the disadvantage is that the warmth and dry finish are lost.

[Problem to be solved by the invention]

The purpose of the present invention is to maintain the fluffiness, warmth, and dry finish, which are the unique advantages of a clothes dryer immediately after drying, even when the items to be dried cannot be taken out immediately after the drying operation ends. To provide a clothes dryer from which drying items can be taken out in a certain state.

[Means to solve the problem]

The above object is achieved by providing a time setting means, setting the time at which the drying material is taken out, and controlling the operation so that the clothes are warm at the set time.

[Effect]

By controlling the operation so that the items to be dried are warm at the time when they are taken out, the items to be dried can be brought to a state immediately after drying has been completed, resulting in a fluffy feeling, which is a unique advantage of dryers. It can provide a warm, dry finish.

Note that as the temperature of the dried material decreases, it loses its warmth and dry finish due to moisture absorption.

〔Example〕

An embodiment of the invention will be described below with reference to the drawings.

1 is an outer frame; 2 is a rotary drum that is rotatably supported within the outer frame 1 and serves as a clothes dryer; 3 is a heat source for obtaining hot air for drying; 4 is the rotating drum. This is a drum drive belt for transmitting the rotational force of the electric motor 5 to the drum 2.

At the rear of the rotating drum 2, there is provided a drum air outlet for discharging circulating air for drying, which is indicated by a solid line arrow in FIG. It also has the role of a blower for generating the circulating air and cooling air (indicated by broken lines in FIG. 1) for cooling the circulating air flow, and has a blade wall surface that is A fan casing 9 housing a double-winged fan 8 for exchanging heat between circulating air and cooling air is provided. This fan casing 9 has a partition plate 1 provided over its entire inner circumference.
0 and felt 11 provided on the outer periphery of both wing fans 8 @
It is divided into a ring air side and a cooling air side.

Reference numeral 12 denotes an airtight felt for keeping the fan casing 9 and the rotating drum 2 airtight.

The circulation side outlet of the fan casing 9 is connected to a heat source 3 by a duct 13 and a duct 14 having a drainage port 36 in the middle.
is communicated with. Further, the cooling air is sucked in through an intake port provided at the center of the back plate 15, as shown by the broken line arrow in FIG. 1, and exhausted from the upper part of the back plate 15.

Note that 16 is a fan belt, 17 is a fan pulley, 1
8 is a drum support member; 19 is a door provided in front of the outer frame 1 for opening and closing an opening for taking in and taking out items to be dried (clothes); and F is a filter 20 that allows the rotary drum 2 to rotate freely around its outer periphery This is a fixed wall at the front of the drum for support.

Next, the operation control method will be explained.

FIG. 2 shows a control circuit for a clothes dryer according to the present invention. 2
1 is a power plug connected to a 100V commercial power supply, 22 is a power switch, 23 is a power supply circuit for supplying DC voltage to a microcomputer 24 containing a clothes dryer operation control program and a control electronic circuit; 25 is a reset circuit for resetting this microcomputer 24 when the power is turned on, 26 is a clock circuit for generating a system clock necessary for the microcomputer 24, and 27 is a drying course setting for the microcomputer 24 of 9 hours. , and a switch input section for transmitting a switch input selected by the user such as starting operation, and 28 indicates the operating state of the clothes dryer.

Display circuit to inform the user of drying course, time, etc., 2
9 is a buzzer circuit that notifies the user when the microcomputer accepts the operation of the input switch or when the operation is completed; 3o is a buzzer circuit that detects changes in the temperature and humidity of the circulating air to determine the dryness of the clothes and the amount of clothes. A dryness detection circuit and a drying material amount detection circuit 32 transmit information from the drying detection means and the drying material amount detection means 31 to the microcomputer 24 for detecting the amount of dried material. 33 is a microcomputer that controls the ON/OFF state of the door switch 32.
34 is a drive circuit and motor rotation speed control circuit for driving the heat source device 3 and driving the electric motor and controlling the rotation speed according to instructions from the microcomputer 24. 35 is a time clock. The frequency signal of the power supply used for the microcomputer-2
This is a frequency signal import circuit for importing into 4.

In this embodiment, the amount of drying material detection circuit 30 and the drying material amount detection means 31 are programmed to detect the amount of drying material at the beginning of operation. In addition, changes in the temperature of the hot air at the drum air outlet 6 are used to determine the amount of material to be dried.

Figure 4 shows changes in the temperature of the hot air at the drum air outlet 6, a
b indicates when the amount of material to be dried is small, and b indicates when the amount of material to be dried is large. When the amount of material to be dried differs, the rate of change in temperature immediately after the start of operation θ1. θ2 is different. In this embodiment, the amount of material to be dried is determined from this difference of 01° θ2. Although temperature changes are used in this embodiment, humidity changes or other means may also be used.

Next, a method of controlling the clothes dryer described above will be explained. The above-mentioned microcomputer 24 has the functions shown in FIGS. 3(a) and (
Three operation control methods shown in b) and (c) are selectively programmed.

The method shown in FIG. 3(a) is a commonly used method in which the drying operation is started when the user operates the operation start switch of the switch input section 27, and the drying operation is started by the drying detection circuit 3o.
The method is to terminate the operation according to a predetermined program based on information from the vehicle, or to terminate the operation according to a predetermined program after operating for a preset time.

The method shown in Fig. 3(b) is a method in which the drying end time (reserved finish time) is set and operated.

After the user operates the switch input section 27 to start the reservation, the operation is stopped and stands by until the time To has elapsed from the finished reservation time (pre-expected machine process), and then T is reached from the finished reservation time.
This is a method of starting drying operation when the time has come when the amount of water has been moistened by o. In this operation control method, from the start of the drying operation, the operation process is divided into three steps: an early drying operation process, a latter standby process, and a warming operation process.

In the first drying operation step, the operation is programmed to end when it is determined that the object to be dried is dry based on information from the dryness detection circuit and the amount detection circuit 30 of the object to be dried.

The latter standby step is a step of waiting in a stopped state from the end of the first drying operation step to the start time of the warming operation step. The warming operation process is an operation process for warming the material to be dried, which is performed immediately before the reserved finishing time. The time required for this is determined by the dry matter amount detection means 3.
It is programmed to be set according to the amount of material to be dried determined in step 1. At this time, the operation may be stopped when the temperature of the warm air at the drum air outlet 6 reaches a predetermined value. In this case, the preset specification 1
Although there is a slight difference between the reserved time and the actual end time of the operation, the temperature of the material to be dried at the end of the operation can always be kept constant.

Further, the operating time required for the warming operation step may be set in advance.

Note that the above-mentioned To is the time required for drying, which is determined by taking into consideration the variation in drying time depending on the type and amount of the material to be dried, the dehydration state, the ambient temperature, etc.

The method shown in FIG. 3(c) is a method in which the operating time of the first drying operation step is set in advance in the method shown in FIG. 3(b). (Only the method for setting the start time of the first drying operation process is different from the method shown in FIG. 3(b), but the rest is the same.) In this example, the first drying operation process is performed in a space with low power consumption. It is set so that Note that the start time of the initial drying operation step may be set arbitrarily by the user.

Next, the operation of the clothes dryer described above will be explained.

When the power plug 21 is inserted into an outlet and the power switch 22 is turned on, a source circuit 23 generates a DC voltage, and a clock circuit 26 transmits a system clock to the microcomputer 24. At the same time, the clock circuit 26 causes the microcomputer to
is reset and becomes operational, and the clothes dryer waits for a switch operation from the user. Next, the user opens the door 19 and puts clothes to be dried into the rotating drum 2. When the door 19 is closed, the door switch 32 is turned on, and the door 19 is passed through the door switch input input circuit 33. The information that has been closed is input into the microcomputer.

The user selects his or her favorite drying course from several pre-programmed drying courses or the operation control methods shown in FIGS. 3(a), (b), and (c), and presses the switch input
9, information such as the drying course set in the display circuit 28 and the operation control method for 9 hours is displayed by a display element such as a light emitting diode, and the operation is started (in the case of the operation control shown in FIG. 3(a)) or The reservation is started (in the case of the operation control shown in FIGS. 3(b) and 3(c)).

When the drying operation is started, power is supplied to the heat source 3 and electric motor 5 according to instructions from the microcomputer 24, and the drum 2 and the double-winged fan rotate once.

As a result, circulating air heated by the heat source 3 flows into the rotary drum 2, removes moisture from the material to be dried, and is then discharged from the rotary drum 2 and sucked into the single-blade fan 8. When the drying material passes through the double-winged fans, it is cooled by the cooling air due to the heat exchange effect of the double-winged fans 8, and the moisture taken from the dried material condenses into water droplets and is discharged outside the machine. The circulating air that has passed through the double-blade fan 8 reaches the heat source 3 again through the ducts 13 and 14, where it is heated and flows into the rotating drum 2, and this process is repeated continuously to advance drying.

In the case of the operation control method shown in FIG. 3(a), the drying operation is performed continuously, and depending on the information from the drying detection circuit 30, the operation is terminated according to a predetermined program, or the operation is terminated according to a predetermined program. After operating for the specified time, the operation ends according to a predetermined program.

In the case of the method shown in FIGS. 3(b) and (C), the operation is stopped and stands by from the start of reservation until the start time of the first drying operation process, and when the start time comes, the drying operation described above is started. It is done. Then, when it is determined based on the information from the dryness detection circuit 30 that the object to be dried is dry, the operation ends. At the end of this process, the amount of the material to be dried is determined based on information from the dried material amount detection means 31.

In the warming operation process, the operation starts from the time when the drying material is moistened for a time set according to the amount of the material to be dried determined during the earlier drying operation process from the reserved finishing time, and the operation ends when the reserved finishing time arrives. .

Note that during the time from the end of the drying process to the start of the warming operation process, the operation is stopped and stands by.

As described above, when the clothes dryer according to the present invention is operated by setting a finishing reservation time, a warming operation step is provided immediately before the finishing reservation time, so that the clothes to be dried can be dried with a fluffy, warm, dry feeling. The product can be taken out with a dry finish.6 Also, since the operating time of the warming operation step is set according to the amount of material to be dried, there is no need to overrun or run short. Also drum air outlet 6
By terminating the operation when the hot air temperature reaches a predetermined value, the temperature of the material to be dried can be kept constant at the end of the operation.

〔Effect of the invention〕

According to the present invention, in the device for setting the operation end time,
To provide a clothes dryer that can take out items to be dried with a fluffy feeling, warmth, and dry finish.

[Brief explanation of drawings]

Fig. 1 is a longitudinal sectional view showing one embodiment of the present invention, Fig. 2 is a block diagram of the control circuit device, Fig. 3 is an explanatory diagram of the operation control method, and Fig. 4 is the rotary drum (drying chamber) air outlet. It is a figure showing the hot air temperature change of. 1... Outer frame, 2... Rotating drum (drying room), 3...
・Heat source, 5...Electric motor, 8...Double wing fan, 27.
...Switch input section, 28...Display circuit, 31...
Dryness detection means (temperature detection means) and amount detection means of dried material. No.! Mouth yz Puzzle diagram (λ) (4) (C) 4th Driving Kano Minami

Claims (1)

[Claims] 1. A drying chamber for drying objects to be dried, a blower fan for sending air to the drying chamber, an electric motor for rotationally driving the blower fan, and a heater for heating the air sent to the drying chamber. In a device having a heat source, a means for detecting dryness of an object to be dried, and a means for setting a time, a means for controlling the operation so that the object to be dried is in a warm state at the time set by the time setting means is provided. A clothes dryer characterized by: 2. The clothes dryer according to claim 1, further comprising a step of warming up the drying material immediately before the time set by the time setting means. 3. A means for detecting the amount of material to be dried is provided, and the time for the warming operation step is set according to the amount of material to be dried detected by the detection means. Clothes dryer as described. 4. A means for detecting the temperature of the air discharged from the drying chamber is provided, and the heating operation step is terminated when the temperature of the air discharged from the drying chamber reaches a preset value. A clothes dryer according to claim 2.