JP2766569B2 - Clothes dryer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a clothes dryer having means for indicating a remaining time of a drying time.

[0002]

2. Description of the Related Art As shown in FIGS. 5 and 6, a conventional clothes dryer detects the humidity and temperature of hot air passing through a clothes 2 in a drum 1 by detecting elements 3 and 4, and reaches a point at which the object of drying is reached. Alternatively, the operation of the clothes dryer 5 is terminated after a certain time has elapsed.

[0003] Also, before the operation of the clothes dryer 5 ends,
The humidity and temperature of the hot air are detected, the time until the programmed purpose is reached is calculated based on the detection result, and the remaining time until the end of the operation of the clothes dryer is displayed on the display unit of the clothes dryer 5. 6.

[0004]

As described above, when the change in humidity or temperature is detected and the remaining time until the end of the operation of the clothes dryer 5 is displayed, the inside of the drum 1 is actually used. When the amount of the clothing 2 is large and small, the residual moisture of the clothing is different, so that there is a difference in the time required to reach the target humidity and temperature, and there is an inconvenience that the clothing is not finished according to the displayed remaining time. Was.

[0005]

DISCLOSURE OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has a heat storage inside a rotatable drum.
A clothes dryer that blows wind and dries clothes.
The humidity detecting means for detecting the drying state of the clothes in the drum.
Step and capacity detecting means for detecting the amount of clothing in the drum
And the humidity detected by the humidity detecting means.
Control means for calculating a pre-programmed operation end time
Clothing having display means for displaying the operation end time
In the dryer, the capacity detecting means may be an infrared sensor.
Or a pair of electrodes that are conductive by contact of clothes
The control means is disposed at a predetermined position on the plate,
When the humidity detecting means detects a predetermined humidity in the later period of turning
Then, the capacity of the clothes is detected by the capacity detecting means, and the detection is performed.
Several types of pre-programmed based on known capacity
Select an appropriate driving course from the driving courses and select the
The time required for operation course that displays on the display means.

[0006]

In the display of the remaining time until the end of the operation of the clothes dryer, substantially accurate remaining time or end time is displayed.

[0007]

An embodiment of the present invention will be described with reference to the drawings.
FIG. 1 is a vertical sectional view of a clothes dryer according to one embodiment of the present invention, and FIG.
FIG. 2 is a sectional view taken along the line AA of FIG. 1. The same or equivalent parts as those in the conventional example are denoted by the same reference numerals.

Reference numeral 1 denotes a drum for rotating an object to be dried (hereinafter referred to as clothes 2) for drying. Reference numerals 3 and 4 denote a detecting element for detecting humidity and temperature of hot air for drying the clothes 2, and a detecting element 3 for a drum. Outlet 6 for discharging hot air containing moisture in 1
The sensing element 4 contacts the hot air A coming out of the outlet 6 with the outside air B sucked by the rotary fan 7 to dehumidify the moisture contained in the hot air A, and the dehumidified air Is circulated, and is provided before the inlet 9 which is heated again by the heater 8 and sent into the drum 1.

The drum 1 is rotated at a reduced speed by a drive motor 10 and a belt 11, and the rotating fan 7 is rotated at a reduced speed by a belt 12 to take in outside air B and discharge hot air from the drum 1. And then
It works to circulate air.

Reference numeral 13 denotes a filter provided in front of the discharge port 6, which functions to remove cotton dust and lint contained in the discharged hot air A. Reference numeral 14 denotes a filter.
The clothes 2 in the drum 1 are attached to a filter guard detachably attached to the front of the
This is to prevent contact with

Reference numeral 15 denotes a capacity detecting means for detecting the amount of clothes. As an example of the detection, infrared rays are radiated into the drum 1, and if there is clothes, the infrared rays are reflected. It is to measure. The capacitance detecting means 15 is provided on the drum support plate 16. The capacity detecting means 15 is not limited to one and may be provided in plural.
(See FIG. 3) FIG. 4 shows another embodiment of the capacitance detecting means 15 and the electrode 17a.
The capacitance detecting device 17 having the
The electrodes 17a and 17b are mounted so as to be exposed inside the drum 1.

When the wet clothing 2 in the drum 1 comes into contact with the electrodes 17a and 17b, the capacitance detecting means 17 conducts the two electrodes, whereby a current flows and the presence or absence of the clothing is detected.

In the configuration of the present invention as described above, the operation will be described next. For example, in the related art, it is assumed that the operation of the dryer is terminated when the humidity detecting element 3 detects the humidity t _0. , Humidity detection element 3 is in the latter half of drying operation
To when detecting the humidity t _1, but time to the end which is pre-programmed (T ₀ -T ₁₎ is displayed,
This was inaccurate with time only due to humidity, regardless of the amount of clothing.

[0014] However one of the present invention, capacity detection means 1
When 5 That capacity detecting means 15 when detecting the garment is determined that the clothes to a position located there (the amount is large), when the garment in the reverse does not exist to the position of the capacity detection unit 15 (an amount And when the time T ₀ -T ₁ is programmed in advance, the humidity detecting element 3
Amount capacity when detecting moisture t ₁ to the drying operation late detection element 1
5 based on the amount detected by the programmed (difference in operation time by volume) either operation course was ie longer operating time of up to T ₀ If it is judged that there are many capacitance, it is determined that the capacity is small Once subjected to short driving operation time to T _0, it is intended to be displayed on the display unit the operating time or operating time remaining (T ₀ -T _1).

In the above-described embodiment, an operation course for completely drying clothes has been described. For example, when an "ironing" course is provided, an operation course different from the above-mentioned operation course is provided. If the "ironing" course is entered before the drying operation, the ironing course is operated, and at the end of the drying operation, it is possible to obtain a substantially accurate finish having a moderate humidity.

[0016]

According to the present invention because of the construction as described above, dried
When the humidity detection means detects the predetermined humidity in the latter half of operation
The capacity of the garment is detected by the capacity detecting means.
Operation on an appropriate operation course until the end of drying.
The time required until the drying is completed can be displayed almost accurately .

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view of a clothes dryer according to one embodiment of the present invention.

2 is a schematic sectional view taken along the line AA of FIG. 1;

FIG. 3 is an application example of FIG. 2;

FIG. 4 is another application example of FIG. 2;

FIG. 5 is a longitudinal sectional view of a conventional clothes dryer.

FIG. 6 is an external view of a clothes dryer.

FIG. 7 is a diagram showing a change in humidity during a clothes drying operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Drum 3 Humidity detecting element 6 Discharge port 7 Rotating fan 8 Heater 10 Driving motor 15 Capacity detecting means

──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Noriaki Miyoshi 22-22, Nagaikecho, Abeno-ku, Osaka-shi, Osaka Inside Sharp Corporation (72) Inventor Tomoki 22-22, Nagaikecho, Abeno-ku, Osaka-shi, Osaka Sharp Corporation (72) Inventor Yuji Onishi 22-22 Nagaike-cho, Abeno-ku, Osaka City, Osaka Prefecture Inside Sharp Corporation (56) References Japanese Utility Model 1988-1988 (JP, U) Japanese Utility Model 1987-117998 (JP, U) (58) Field surveyed (Int.Cl. ⁶ , DB name) D06F 58/02 D06F 58/28

Claims (1)

(57) [Claims] 1. A clothes dryer for drying clothes by feeding hot air into a rotatable drum , wherein the clothes drier is
Humidity detecting means for detecting a dry state of clothes of the drum, and the drum
Capacity detecting means for detecting the amount of clothes in the interior;
Pre-programmed based on the humidity detected by the step
Control means for calculating the calculated operation end time;
And a display means for displaying a time interval, wherein the capacity detecting means detects an infrared sensor or a contact with the clothes.
A pair of more conductive electrodes are arranged at predetermined positions on the drum support plate.
The control means is provided with the humidity detecting means at a later stage of the drying operation.
When a constant humidity is detected, the capacity detection means
Detects the capacity of clothing, and based on the detected capacity,
From the several types of driving courses
And the time required for the selected driving course is shown in the table above.
Clothes dryer, characterized in you to view the shows means.