JPS6113999A - Clothing dryer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a clothes dryer for general household use.

Conventional technology The configuration of a conventional clothes dryer will be explained.

FIG. 3 is a longitudinal cross-sectional view of a conventional clothes dryer, and FIG. 4 is an enlarged cross-sectional view of the seal portion indicated by P in FIG.

In the figure, (1) is the clothes dryer body, (2) is the rotating drum, and the motor (3) drives the belt (4j1 pulley (
5). (6) is a double-bladed heat exchange fan made of plastic. (The force is the belt, (s) z (91 is the pulley, which drives the fan (6). ). a7J is a heater that heats the air sucked into the drum (2). αJ is a time switch, and αa is a fan case.

1. Conventionally, the configuration of circulating air and cooling air of a double-blade heat exchange fan 7f
) Same V? A felt-like seal Mα5/ is inserted into the fi m L cut and its outer surface is bonded with adhesive to form a V-shaped seal, and in contact with this is an inverted Ω-shaped seal made of stainless steel plate.

Problems to be Solved by the Invention Although this conventional means has good sealing effect and good durability,
・As shown in the figure, it has a complicated structure with many parts (requires an inverted Ω-shaped swing αe made of stainless steel plate), and the installation requires many man-hours and has the disadvantage of being expensive.

The operation in the conventional configuration will be explained.

When the power switch (time switch α'S) is turned on and operation starts, the heater (IZ) and motor (3) are energized, and the drum (2) and fan (6) begin to rotate. At the same time, the circulating air (a) heated by the heater σ2 hits the clothes, starts drying them, passes through the filter 00), and then passes through the inside of the heat exchange fan (6).

At this time, the moisture in the circulating air (a) is cooled by the cooling K (b) drawn in from the outside and condenses, and the fan case α
It drips from the drain port 4. In this case, circulating wind (a)
There is a drawback that the cooling air (b) is less effective than the fan case b.

Means for Solving the Problems The present invention rotates a drum to agitate the clothes, sends circulating hot air into the drum, and passes the circulating wet air that has passed through the clothes through the inner side of a double-blade heat exchange fan. The outer surface is cooled and dehumidified by passing external cooling air, and a sealing member is arranged between the outer circumference of the double-blade exchange fan, the groove part, and an annular partition part that partitions the external cooling air from the circulating moist air that projects inward and is integrated with the fan case. In the clothes dryer equipped with a seal part, the flexible seal part has one end adhered to the annular partition part of the fan case, and the other end slides in contact with the lowest groove part of the outer circumferential groove part of the fan. In addition, a wear-resistant lining is provided on the inner side of the groove on the outer periphery of the heat exchange fudge on both wings.

Function and Embodiment FIG. 1 shows a cross-sectional view of a seal portion of an embodiment of the clothes dryer of the present invention.

This will be explained in detail with reference to FIG.

A flexible sealing member such as felt is glued at one end to the annular partition (14-1) of the fan case α (a)! 9 is disposed at 1 and the other end is slidably in contact with the groove (6)' on the outer periphery of the fan to form a seal portion. A feature of this sealing means is that, for example, when the pressure on the circulating air (a) side increases, the sealing member aω is moved to the groove portion (6Y
The sealing effect is further improved by being pressed against the right inner side of the
When the pressure on the (cooling air/(1)) side is high, the sealing member (19 bends to the left) works in the opposite direction, and it changes depending on the load fluctuation state of the clothes placed in the drum (2). 4. It is characterized by preventing leakage of the circulating air (a) to the outside due to pressure fluctuations of the circulating air (a) and from mixing with the cooling air (b), thereby exhibiting a sealing effect.

Effects of the Invention The clothes dryer of the present invention sends circulating hot air into a one-rotation drum, passes the circulating moist air that has passed through the clothes through the inner side of a double-blade heat exchange fan, and cools and dehumidifies the outer side by passing external cooling air. , the partition seal part for the circulating wet air and the external cooling air of the double-blade heat exchange fan is provided by attaching a flexible seal member to the annular partition part of the fan case so that the outer periphery of the heat exchange fan comes into sliding contact with a substantially ■-shaped groove provided on the outer periphery of the double-blade heat exchange fan. '', it has an extremely simple configuration and a small number of parts, making it inexpensive, and it also exhibits effects such as improving the contact effect of the sealing member in response to pressure fluctuations within the fan case.

In addition, FIG. 3 shows the fan ■-shaped groove (6) of the seal member a9.
In order to improve the abrasion resistance of the contact surface of (6)', a coating such as resin plating as shown in (6)' is shown. Alternatively, a metal plate or foil may be attached.

[Brief explanation of the drawing]

Fig. 1 is a sectional view of a seal portion of an embodiment of a clothes dryer according to an embodiment of the present invention, Fig. 2 is a sectional view of another embodiment, Fig. 3 is a sectional view of a conventional clothes dryer, and Fig. 4 is a sectional view of a conventional clothes dryer. A sectional view of a seal portion is shown. 1: Body 2 Drum 3: Motor 6: Double-blade heat exchange fan 12: Heater 14: Fan case
14-1: g (shaped partition portion) 15: Flexible sealing member patent applicant Matsushita Electric Industrial Co., Ltd. Representative patent attorney
Isao Abe Figure 1 Figure 2

Claims (2)

[Claims] (1) The drum is rotated to agitate the clothes and circulating hot air is sent into the drum, and the circulating wet air that has passed through the clothes is passed through the inner side of the double-blade heat exchange fan, and the outer side is cooled and dehumidified by passing external cooling air. , a clothes dryer provided with a sealing part in which a sealing member is arranged between the outer circumferential V-groove part of the double-blade exchange fan and an annular partition part integrally formed with the fan case and partitioning the circulating wet air and the external cooling air that protrude inward. A clothes dryer according to the present invention, wherein one end of the seal portion is adhered to the annular partition portion of the fan case, and the other end is provided with a flexible seal member that slides into contact with the lowest groove portion of the outer circumferential groove portion of the fan. (2) The clothes dryer according to claim 1, wherein an abrasion-resistant lining is provided on the inner side of the outer circumferential V-groove portion of the double-blade heat exchange fan.