JPH02136173A - Controller for clothing dryer - Google Patents

Abstract

PURPOSE:To enable clothing to be efficiently dried even in case of a small quantity of the clothing by changing the rotational speed of a drum to be delayed with a drum rotation controlling means, when by a cloth quantity detecting means, it is discriminated that the quantity of the clothing is small. CONSTITUTION:When by the signal of a weight detecting element 5, through a cloth quantity detecting means 6, it is discriminated that the quantity of clothing is small, then by a motor driving means 4, the rotational speed of a motor 2 is controlled to be delayed. Accordingly, the rotational speed of a drum 1 is also delayed, and when the clothing to be attached to the side surface of the drum 1 with the normal rotational speed of the drum 1 comes to the upper side of the drum 1, then the clothing is to be dropped on the lower side through the center of the drum 1. As a result, the clothing which is attached to the side surface of the drum 1 and does not come in contact with hot air, is not found, and the clothing passes the center of the circulating route of the hot air of the drum 1, and so the clothing can be efficiently dried.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a control device for a clothes dryer.

2. Description of the Related Art The configuration of a conventional clothes dryer control device is shown in FIG. 1
2 is a drum, 2 is a motor, 3 is a belt for transmitting the rotation of the motor 2 to the drum 1, and 7 is a motor drive means for driving the motor 2.

Problems to be Solved by the Invention However, in the above-mentioned conventional configuration, the rotational speed of the drum 1 is constant regardless of the amount of clothing, so if the amount of clothing is small, the clothing may stick to the side of the drum 1. There was a problem that hot air could no longer be applied to clothes, making it impossible to dry them efficiently.3 The present invention solves the above-mentioned conventional problem, and it is possible to efficiently dry clothes even when there is a small amount of clothes. The purpose of the present invention is to provide a control device for a clothes dryer that can perform the following functions.

Means for Solving the Problems To achieve this object, the clothes dryer control device of the present invention includes cloth amount detection means for detecting the amount of clothes in the drum, and a mechanism for changing the rotational speed of the drum. and a drum rotation control means configured to change and slow down the rotation speed of the drum by the drum rotation control means when the ff1l written amount detection means determines that the amount of clothing is small. There is.

With this configuration, when there is a small amount of clothing, the rotation speed of the drum is slowed down, so that when clothing stuck to the side of the drum rotates upwards, it falls downward through the center of the drum. Therefore, the clothes always pass through the center of the drum, which is the hot air circulation path, and the clothes can be dried efficiently.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 shows the configuration of a control device for a clothes dryer in an embodiment of the present invention.

In FIG. 1, 1 is a drum for storing clothes, 2 is a motor for rotating the drum 1, 3 is a belt for transmitting 20 rotations of the motor to the drum 1, and 4 is a motor drive means for driving the motor 2. It consists of an inverter circuit and can control the rotational speed of the motor 20.

Reference numeral 6 denotes a weight λ detection element for detecting the amount of clothes in the drum 1, and 6 is a cloth amount detection means for determining whether the clothes are clean based on a signal from the weight detection element 6.

The operation of the control means for the clothes dryer configured as described above will be explained below. When the cloth amount detection means 6 determines that the amount of clothing is small based on the signal from the weight detection element 5,
The rotational speed of the motor 2 is controlled and slowed down by the motor driving means 4. Therefore, the drum 10 rotation speed also becomes slower,
At the normal rotational speed of the drum 1, clothing that would stick to the sides of the drum 1 will fall downward through the center of the drum 1 when it comes above the drum 1. Therefore drum 1
No clothes stick to the sides of the drum 1 and are not exposed to the hot air, and the clothes pass through the center of the drum 1, which is the hot air circulation path, so the clothes can be dried efficiently.

In the present embodiment, the motor drive means is an inverter circuit, but the motor drive means may use variable speed gears to change the rotational speed of the motor 2.

Effects of the Invention As described above, according to the present invention, when drying a small amount of clothes, it is possible to improve efficiency without accidentally ending the drying process while leaving the clothes half-dried, or conversely, drying the clothes too much. Therefore, it is possible to realize an excellent control device for a clothes dryer that can dry a small amount of clothes in an appropriate amount of time.

[Brief explanation of the drawing]

FIG. 1 is a block diagram of a control device for a clothes dryer according to an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional control device for a clothes dryer. 1...Drum, 2...Motor, 3...
・ ・Belt, 4...Motor drive means, 6...
...Weight detection element, 6... Cloth amount detection means.

Claims (1)

[Claims] Clothes amount detection means for detecting the amount of clothes in the drum;
drum rotation control means for changing the rotation speed of the drum, and when the cloth amount detection means determines that the amount of clothing is small, the drum rotation control means changes the rotation speed of the drum to slow it down. A control device for a clothes dryer.