JPH022319Y2 - - Google Patents

Description

[Detailed explanation of the idea] (b) Industrial application fields The present invention relates to a clothes dryer.

(b) Prior Art A clothes dryer that performs cold air operation in which the heater device is turned off and cold air is sent into the rotating drum in order to cool the clothes after the heating drying operation is completed is disclosed in, for example, Japanese Patent Publication No. 52-24713. Publications and Japanese Patent Application Laid-Open No. 1983-
It is disclosed in Publication No. 124491. However, in all of these conventional examples, the cooling air operation time is constant regardless of the amount of clothing loaded, so in the case of a small clothing load, unnecessary power consumption and unnecessary operating time are required. However, when a large amount of clothes are loaded, the operation ends without being sufficiently cooled.

Furthermore, if the clothes are left in the rotating drum for a long time after drying, the weight of the clothes will cause many wrinkles to form on the lower part of the clothes, making ironing, etc., a lot of work.

On the other hand, in Japanese Patent Publication No. 48-24769, it is proposed to count the heating drying time which is almost proportional to the amount of clothes loaded and to perform the cold air operation for the time proportional to the heating drying time. A good cooling condition can be obtained depending on the amount of However, even with this configuration, it is not possible to prevent wrinkles from occurring in the clothes after drying.

On the other hand, in order to prevent the occurrence of such wrinkles,
It has also been considered to rotate the rotating drum intermittently for a short period of time after drying is completed. However, if such intermittent operation is performed at regular intervals, wrinkles are likely to occur when the amount of clothes loaded is large, and conversely, when the amount of clothes loaded is small, the rotating drum will be rotated more than necessary. This makes it easier to damage your clothes. Especially for delicate clothing.
If the rotating drum is rotated for a long time, the fabric will be severely damaged.

(c) Problems to be solved by the invention This invention determines the time of cold air operation and the time interval of intermittent drum operation to prevent wrinkles according to the drying time that reflects the amount of clothes loaded, and To provide a clothes dryer that performs appropriate cold air operation and intermittent drum operation to provide good cooling, wrinkle prevention, and fabric damage prevention effects, and does not waste power consumption or operating time. It is.

(d) Means for Solving the Problems The clothes dryer of the present invention includes a heater device, a blower device that blows air to the heater device, a rotating drum that dries stored clothes with hot air from the heater device, and a rotating drum that dries stored clothes using hot air from the heater device. a first control means for heating and drying clothes by turning on the heater device and the blower device; and a drying time storage section for storing the drying time. a cold air operation control unit that performs a cold air operation in which the heater device is turned off and the blower device is turned on for a time proportional to the storage contents of the drying time storage unit; and a drum intermittent operation control section that performs intermittent operation of the rotating drum at time intervals that are inversely proportional to each other.

(E) Effect The cold air operation is performed for a time proportional to the drying time reflecting the amount of clothes loaded, and the drum intermittent operation is performed at time intervals inversely proportional to the drying time.

(F) Example 1 is a case of a clothes dryer, with a clothes input port 2 on the front.
It consists of a machine frame 3 having a rear opening and a rear cover 5 covering the rear opening and having an exhaust port 4, and the clothes input opening 2 is closed by a door body 6 which can be opened and closed.

7 is a front support ring formed by inwardly bending the peripheral edge of the machine frame 3 forming the clothes input port 2; 8 is a front support ring formed around the exhaust port 4 of the rear cover 5 and coaxial with the exhaust port 4; This is the rear support ring attached to the.

Reference numeral 9 denotes a rotating drum for storing clothes stored in the housing 1, which includes a hollow drum body 11 made of synthetic resin and having a front opening with a shaft supporting protruding tube 10 loosely fitted into the rear support ring 8 protruding from the bottom surface. and a metal drum lid 13 that closes this front opening and has a charging opening 12 into which the front support ring 7 is loosely fitted. The projecting tubes 10 are rotatably supported on the rear support ring 8 via respective felt seals. Reference numeral 14 designates an air introduction hole formed in the drum lid 13, 15 an air outlet hole formed in the bottom surface of the shaft support projecting cylinder 10, and 16 a filter device.

17 is an outside air intake hole bored in the rear cover 5;
Reference numeral 18 denotes a motor provided near the intake port 17, and a fan 19 facing the intake port 17 is attached to one end of the rotating shaft of the motor 18 to connect the intake port 17.
A blower device 20 is constructed which sucks in outside air from the outside and pressurizes the inside of the housing 1. Furthermore, a pulley 21 is attached to the other end of the rotating shaft, and a belt 22 is stretched between the pulley 21 and the drum body 11. The rotary drum 9 is rotated at a slow speed through the rotary drum 9.

23 is located in the front part of the drum lid 13 in the housing 1 and fixed to the back side of the front of the machine frame 3,
A circulation duct that guides the pressurized air into the rotating drum 9 through the air introduction hole 14, and the duct 23 is equipped with a positive temperature resistance characteristic thermistor heater 24 as a heater device for heating the air. and is in sealed contact with the drum lid 13 via a nonflammable felt seal 25.

26 is a temperature sensor suspended and fixed at the center of the exhaust port 4.

Reference numeral 27 denotes a control device for controlling the drive of the heater 24 and the motor 18, which includes a heater drive means 28, a motor drive means 29, a first control means 31 including a drying time storage section 30, a cold air operation control section 32, and Second control means 3 including drum intermittent operation control section 33
Contains 4. When the start button 35 is pressed, the first control means 31 is activated to control the heater drive means 28 and the motor drive means 29.
The heater 24 and the motor 18 are turned on to start the heating drying operation, and when the temperature detected by the temperature sensor 26 reaches a predetermined drying end temperature or higher, it is determined that the clothes are dry and the heating drying operation is ended, and This drying time is stored in the drying time storage section 30.
Next, the second control means 34 is activated, and first, the cold air operation control section 32 turns off the heater 24 and starts a cold air operation in which only the motor 18 is turned on. The cold air operation control unit 32 is stored in advance with a cold air operation time specified in proportion to the drying time, and the cold air operation is performed for a time proportional to the drying time stored in the drying time storage unit 30. To efficiently lower the temperature of clothing by performing cold air operation for a time corresponding to the amount of time. After that, the drum intermittent operation control section 33 of the second control means 34 is used to prevent wrinkles from forming on the clothes.
is activated, and only the motor 18 is intermittently turned on while the heater 24 is turned off.This drum intermittent operation control section 33 is programmed with a motor drive time interval predefined in inverse proportion to the drying time. The rotary drum 9 is driven intermittently at time intervals inversely proportional to the drying time stored in the drying time storage section 30, with long time intervals when the load is small and short time intervals when the load is large. The rotating drum 9 is intermittently rotated to effectively prevent wrinkles.

That is, for example, as shown in FIG. 3, when the drying time K1 is defined as the cold air operation time R1 and the time interval T1 in the case of a large load, the drying time K2 becomes shorter in the case of a small load, and K1>K2. , and the cold air operation time R2 becomes shorter in proportion to this drying time K2, R1>R2, and the time interval T2 of intermittent rotation of the rotary drum 9 becomes longer in inverse proportion to this drying time K2, T1<T2. ing.

(g) Effects of the invention According to the invention, the cold air operation is performed for a time proportional to the drying time that reflects the amount of clothes loaded, so the time of the cold air operation is long when the amount of clothes loaded is large, and short when the amount of clothes loaded is small. This results in better and leaner cooling. In addition, intermittent drum operation is performed at time intervals that are inversely proportional to the drying time, so when the amount of clothes loaded is large and wrinkles are likely to occur, the rotating drum rotates at short intervals, which increases the effect of preventing wrinkles, and reduces the amount of clothes loaded. When wrinkles are less likely to occur, the rotating drum rotates at long intervals to prevent wrinkles and damage to clothing. Therefore, the necessary and appropriate cold air operation and intermittent drum operation are performed, and good cooling, wrinkle prevention, and fabric damage prevention effects are obtained, and
To obtain a clothes dryer that can operate efficiently and has low running costs without wasting power consumption or operating time.

[Brief explanation of drawings]

The drawings all relate to embodiments of the proposed clothes dryer.
FIG. 1 is a longitudinal sectional view, FIG. 2 is a circuit block diagram, and FIGS. 3A and 3B are driving time diagrams of the rotary drum in a large load state and a small load state. 24...Positive temperature resistance characteristic thermistor heater, 2
0... Air blower, 9... Rotating drum, 27... Control device, 31... First control means, 34... Second control means.

Claims (1)

[Scope of utility model registration request] The controller includes a heater device, a blower device that blows air to the heater device, a rotating drum that dries stored clothes with hot air from the heater device, and a control device that controls the driving of these devices. a first control means for heating and drying clothes by turning on the air blower; a drying time storage section for storing the drying time; and a first control means for heating and drying clothes by turning on the air blower, a drying time storage section for storing the drying time, and a cold air operation for turning off the heater device and turning on the air blower for drying the clothes. a drum intermittent operation control section that performs intermittent operation of the rotating drum at time intervals that are inversely proportional to the storage contents of the drying time storage section after the cold air operation ends; A clothes dryer comprising: