JPS6045400A - Clothings 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 configuration and its problems Conventionally, this type of clothes dryer detects a predetermined drying level of the drying object by the electrical resistance of the part that does not come into contact with the drying object, and Although attempts were made to always obtain a constant dry finish depending on the time, there were many variations in the drying level depending on the mounting position of the electrode that detects the predetermined drying level, and it could not be said that the finished condition was always constant.

OBJECTS OF THE INVENTION The present invention solves these conventional problems and provides a clothes dryer that improves the accuracy of the drying level and makes the finished product uniform, especially the drying state of small items.

Structure of the Invention The clothes dryer of the present invention includes a drying level detecting means that performs drying using hot air that heats air, and detects a predetermined dryness level of the drying object by contacting the drying object and detecting the electrical resistance of the drying object; hot air drying operation stop means for stopping the hot air drying operation after a predetermined delay time has elapsed after the drying level of the dried material reaches a predetermined drying level; By installing a drum with a full plate at the boundary between the drum and the front plate of the drum, it is possible to improve the accuracy of detecting the dry state of small items, and also improve the detection accuracy after the delay time. It has a uniform dry finish.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to accompanying drawings. In the drawing, 1 is an opening [1] forming a drying chamber.
It slopes sequentially from the part toward the back wall (D.

<D2) A rotary drum with a baffle plate 1' removed is rotatably supported within the outer box 2, and its rotation causes the dried material 3 inside to rotate and fall. Reference numeral 4 denotes a motor provided inside the outer box 1, which rotates the rotary drum 1 via a belt 5, and simultaneously rotates a moisture-proof fan 8 (hereinafter referred to as a fan) inside a fan case 7 via a belt 6. Rotate.

When the fan 8 is rotated, the air inside the rotating drum 1 flows from the filter cover 9 to the filter 10 as shown by the arrow.
111.1, passes through the inside of the fan case 7, is sent into the heater cover 13 from the ventilation passage 12, and is sent to the tram front plate 14.
The heated air is turned into hot air by the heater 15 installed inside the ram 1, and is blown into the ram 1 through the ventilation hole 19. The hot air heats the material to be dried in the rotary tram 1, and the hot air that has removed moisture repeats the above-mentioned ventilation cycle. During the hot air cycle, the hot air containing a lot of moisture touches the inner wall of the fan 8 on the drum 1 side, and at the same time, the outside air also touches the wall on the outside air side of the fan 8, and due to the temperature difference at that time, the inside of the fan 8 Water vapor in the hot air condenses on the wall, is blown off by the rotation of the fan 8, and the water droplets are drained out of the machine through a drain hole 16 provided in the fan case 7. By repeating the above cycle, moisture is removed from the dried material,
The material to be dried 3 in the drum 1 is dried in a moisture-proof manner. Reference numeral 17 denotes an electrode for detecting the electrical resistance of the object 3 to be dried by contacting it, and is located in front of the heater 15, that is, in the drum front plate 14.
is fixed on the side facing the inside of the rotating drum 1. Reference numeral 18 denotes a temperature detection element, which is a thermistor having a negative resistance-temperature characteristic, and is installed between the filters 10 and 11 in the rotating drum 1 and the fan 8 to detect the temperature before the moisture proofing. There is.

Therefore, the drying object 3 in the rotary drum 1 is dried by hot air drying as described above, a predetermined drying rate is detected by the electrode 17, and the subsequent temperature rise is measured by the temperature detection element 18 to calculate the delay time. The power supply is controlled by

Therefore, since the clothes 3 to be dried are pushed to the opening position by the baffle plate 1', the electrode 17 for detecting the dryness level can be easily touched, especially for small items, making it easier to detect a predetermined dryness state. Therefore, it is possible to improve the detection accuracy of the dryness level and to ensure uniformity of the drying state.

Note that the changes in drying rate and exhaust temperature at this time are as shown in FIG.

Effects of the Invention As described above, the clothes/dryer of the present invention has a baffle plate at the border between the drum and the front plate of the drum, in which the electrodes for detecting the dryness level are sequentially inclined from the opening toward the back wall. By providing it in the section, it is possible to improve the accuracy of detecting the dryness level when small quantities are used and to make the finished state uniform.

[Brief explanation of the drawing]

FIG. 1 is a side sectional view of a clothes dryer according to an embodiment of the present invention, FIG. 2 is a control circuit diagram thereof, and FIG. 3 is a characteristic diagram showing changes in drying rate and exhaust temperature rise. 1... Rotating drum, 3... Material to be dried,
17... “Electrode, 19... Ventilation hole.

Claims (1)

[Claims] Dryness level detection means that contacts the object to be dried and detects a predetermined drying level of the object to be dried based on its electrical resistance; The drying level detecting means includes a hot acid drying operation stopping means for completely stopping the drying operation, and the drying level detecting means includes a drum having a buckle plate which is sequentially inclined from an opening toward a back wall, and a front plate of the drum. A clothes dryer located at the boundary.