JPH0356759B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention uses the rotation of a fan to draw in air from the front of the equipment body and cause hot air heated by a heater to flow into a drum that is a storage for drying materials, and to exchange heat with the drying materials. The present invention relates to a clothes dryer that exhausts air, and particularly relates to an improvement in the mounting structure of an intake filter that forms an intake path for air passing through a heater.

In the conventional clothes dryer shown in FIG. 2, for example, a lid 15 that can be opened and closed covers the clothes input port 16
Then, the circular protrusion 19 of the lid 15 is brought into contact with the packing 18 provided on the circular flange 17 that forms the front clothing slot 16 of the main body 1 of the device to seal it. Intake port 30
A removable intake filter 31 is provided inside the lid 15, and a rib 32 is provided on the inside of the lid 15, both ends of which are connected to the circular protrusion 19. A lid packing 33 is fixed to the rib 32. It was brought into contact with the front surface of the device main body 1 to form an intake path. Therefore, when an abnormal condition occurs such as the fan stopping the air blowing, the heater 10 heats up the clothes while the clothes continue to be agitated, so the hot air flows back from the air outlet due to the air generated by the agitation of the clothes. , the intake filter 31 and the lid 15 may be deformed.

The present invention solves the above-mentioned conventional drawbacks, and aims to provide a clothes dryer of unprecedented high quality by improving the mounting structure of the intake filter attached to the lid.

An embodiment of the present invention will be described below with reference to FIGS. 1 and 3.

In the figure, a drum 2 is rotatably supported within a device body 1, a fan 4 that rotates within a fan case 3 is provided behind the drum 2, and a drive motor 5 is provided.
A drum pulley 6 and a motor pulley 7 are fixed to a rotating shaft, and the drum 2 and fan 4 are rotated by a V-belt 8 and a fan belt 9 that are hung around the pulleys 6 and 7. Reference numeral 10 denotes a self-heating heater having positive temperature characteristics, which is appropriately fixed to the heater case 12 between a drum support plate 11 that rotatably supports the drum 2 and the front surface of the main body 1 of the device. A bearing 13 for rotationally supporting the drum 2 is provided on the outer periphery of the drum support plate 11, and a large number of ventilation holes 14 are provided behind the heater 10 to allow hot air to flow into the drum 2.

Reference numeral 15 denotes a lid that can be opened and closed to cover the clothes input port 16, and the circular protrusion 19 of the lid 15 is brought into contact with a packing 18 provided on a circular flange 17 forming the front clothes input port 16 of the device main body 1 to seal the lid. An intake port 20 is formed in the lower part of the lid 15 facing the heater 10, and a removable intake filter 21 is fitted into the intake port 20 from the outside of the lid 15.
The lid 15 is made of a synthetic resin having better heat resistance than the lid 15. An air outlet 25 having a large number of intake slits 24 is fixed to the front surface of the main body 1, which is the front surface of the heater 10. The intake filter 21 is provided with a rib 22, a lid packing 23 is fixed to the rib 22, and the lid packing 23 is brought into contact with the outer periphery of the air outlet 25 to form an intake path.

The operation of the above configuration will be explained below.

Due to the rotation of fan 4, the air sucked into lid 1
Intake filter 2 attached to intake port 20 of No. 5
It passes through the air intake path sealed by the rib 22 of No. 1 and the lid packing 23, and passes through the air intake slit 2 of the air outlet 25.
4 and heated by the heater 10 enters the drum 2 through the ventilation hole 14 of the drum support plate 11, exchanges heat with the clothing, and passes through the filter 28 removably provided on the rear surface of the drum 2. , flows into the fan case 3 and is exhausted to the outside of the device body 1 by the fan 4 through the exhaust guide 29.

As described above, according to this embodiment, it is sufficient to select a material for the lid from a synthetic resin that has good moldability and does not cause appearance problems such as sink marks after molding. It is also advantageous in terms of cost since it does not require On the other hand, if an abnormal condition occurs in which the fan belt 9 breaks or comes off during operation, the heater 10 is overheated because the air blowing is stopped. On the other hand, since the clothes in the drum 2 continue to be agitated, the air generated by the agitation of the clothes enters the heater 10 through the ventilation holes 14 of the drum support 11, and the hot air, which has become superheated and reaches a high temperature, flows through the intake slit 24 to the lid 15. In order to prevent deformation of the lid and intake filter, both the lid and intake filter had to be made of synthetic resin with high heat resistance, which was very costly. was becoming the highest.
Alternatively, a thermostat that senses high temperature and turns off the power supply circuit is installed between the heater 10 and the intake slit 24, which is expensive, but it is possible to form the intake path with the intake filter 21 as in the present invention. By forming only this intake filter 21 with synthetic resin with high heat resistance, it is possible to prevent deformation in the event of an abnormality.Moreover, since only the intake filter 21, which is a small part, is made of synthetic resin with high heat resistance, the cost can be reduced. can also be reduced.

In addition, since the intake filter 21 is removably attached to the outside of the lid 15, it is possible to handle the intake filter 21 from the front of the product, which greatly improves maintenance such as cleaning the intake filter 21, making it easier to operate and use. You can greatly improve your performance. Furthermore, the intake filter 21 has ribs 22
Since the shape has a flange around the periphery, it is possible to prevent the clothes from coming into contact with the dust suction part and becoming soiled when taking them in or out.

As described above, in the present invention, an intake filter is detachably attached to the intake part of the lid, a ventilation guide rib is formed on the intake filter, and packing is attached to the tip of the ventilation guide rib at the air intake port of the outer frame. Since the air intake path is formed by contacting the outer periphery, the packing contacts the outer frame when the lid is closed, creating a ventilation path that prevents hot air from leaking inside the lid.
Furthermore, since the packing is configured to simply abut against the outer frame, there is no problem when opening the lid.
Therefore, the intake filter itself can form a ventilation path without hot air leakage without interfering with the opening/closing operation of the lid, so if the intake filter is made of synthetic resin with high heat resistance, the lid can be made of synthetic resin with low heat resistance. Abnormal deformation can be prevented by using a low-cost synthetic resin lid with low heat resistance.

[Brief explanation of drawings]

Fig. 1 is a side sectional view of a clothes dryer showing an embodiment of the present invention, Fig. 2 is an enlarged sectional view of the main part near the intake filter of a conventional clothes dryer, and Fig. 3 is an embodiment of the present invention. FIG. 3 is an enlarged cross-sectional view of the main parts near the intake filter. 2... Drum, 10... Heater, 15... Lid, 16... Clothes slot, 18... Packing,
20...Intake port, 21...Intake filter, 23
...Lid patch king, 25...Air vent.

Claims (1)

[Claims] 1. An outer frame, a drum rotatably supported within the outer frame, a drive device for rotating the drum, a moving device for introducing air into the drum and discharging air from the drum, and the drum. A heater that heats the air flowing into the drum, and a lid made of synthetic resin that can be opened and closed to cover the front opening of the drum, and a part of the lid communicates with an air intake port that leads to the heater in the outer frame. An intake port is provided, an intake filter made of a synthetic resin having better heat resistance than the lid is removably attached to the intake port, a ventilation guide rib is formed on the intake filter, and a ventilation guide rib is formed at the tip of the ventilation guide rib. A clothes dryer in which an air intake path is formed by bringing a provided lid packing into contact with the outer periphery of the air intake port.