KR960014519A

KR960014519A - No-load detection method of laundry drying

Info

Publication number: KR960014519A
Application number: KR1019940027004A
Authority: KR
Inventors: 심효선
Original assignee: 이헌조; 엘지전자 주식회사
Priority date: 1994-10-21
Filing date: 1994-10-21
Publication date: 1996-05-22

Abstract

본 발명은 빨래 건조기의 포량 감지 방법에 관한 것으로서, 특히 무부하(빨래가 없는 경우) 상태를 감지할수 있도록 하므로서 무부하로 건조 과정 진행시 장시간 운전되는 것을 방지하고자 하는 것으로서, 종래 빨래건조기를 무부하로 운전을 하거나 수분의 변화가 거의 없을 정도의 극히 적은 양의 빨래를 넣고 건조과정을 진행할 경우, 드럼 내부의 온도는 빠른시간안에 피크치에 도달하여 드럼내의 포량이 소량으로 감지되며, 이때의 제1온도센서에서 감지된 온도(T1)와 제2온도센서에서 감지된 온도(T2)의 차(T)를 기억하면서 제1히터만으로 운전을 하면, 기억된 값 이상으로 차이가 날때까지 운전을 하여 종료를 해야하므로 무부하 또는 극히 적은 양의 빨래를 넣고 운전을 하게 되면 수분이 없는 상태이므로 피크치에 도달했을때의 온도차(T) 이상으로 차이가 나지 않으며, 따라서 빨래 건조기가 장시간 운전된다는 문제점이 있었다.The present invention relates to a method for detecting a quantity of a laundry dryer, and in particular, to detect a no-load (when there is no laundry) and to prevent the long-term operation during the drying process at no load, and to operate the conventional laundry dryer at no load. When the drying process is carried out with a very small amount of laundry with little change in moisture, the temperature inside the drum reaches a peak within a short time, and a small amount of water in the drum is detected. When driving with only the first heater while remembering the difference (T) between the detected temperature (T1) and the temperature (T2) detected by the second temperature sensor, the operation must be completed until the difference exceeds the stored value. When operating with no load or a very small amount of laundry, there is no moisture, so the temperature difference (T) above the peak value is reached. Not born lice, and therefore there is a problem that the clothes dryer is operated for a long time.

따라서, 상기와 같은 문제점을 해결하기 위해 본 발명은 초기 드럼내부의 온도가 피크치에 최초 도달하는 시간 또는 단위시간당의 피크치 도달 횟수를 계산하여 포량 감지를 더욱 세분화하고, 아울러 무부하 상태를 감지하여 빨래 건조기의 건조 과정을 제어하면, 무부하 및 극히 적은 양의 빨래로 건조 진행시 장시간 운전되는 문제를 해결하고자 하는 빨래 건조기의 무부하 감지 방법이다.Therefore, in order to solve the above problems, the present invention calculates the number of peak times per unit time or the time when the temperature inside the initial drum reaches the peak value for the first time, further subdivids the quantity detection, and also detects the no-load condition and washes the dryer. If the drying process is controlled, the load-free detection method of the laundry dryer is intended to solve the problem of long-term operation during drying progress with no load and a very small amount of laundry.

Description

No-load detection method of laundry drying

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.

제3도는 빨래 건조시 순환공기 및 드럼의 내부공기의 온도 변화를 보인 그래프,3 is a graph showing the temperature change of the circulating air and the internal air of the drum during laundry drying,

제5도는 본 발명 빨래 건조기의 무부하 감지 방법을 보인 플로우챠트.Figure 5 is a flow chart showing a no-load detection method of the laundry dryer of the present invention.

Claims

The drying process starts and the motor 4 and the first and second heaters 8 and 9 are operated in one step, and for a predetermined time (10 minutes) at a point of time (10 minutes) after the start of operation. The second process of determining the amount of heavy, low and no-load by using the number of peaks reached, and the number of peaks reached is greater than the predetermined value (A) after a predetermined time (10 minutes) has elapsed since the start of operation. And a third step of detecting a minimum amount or no load, and determining a small amount when the number of times of reaching the peak value is smaller than the predetermined set value B after the predetermined time (10 minutes) elapses. Step 4 and the difference between the temperature T1 detected by the first temperature sensor 2 and the temperature T2 detected by the second temperature sensor 6 at the predetermined time (10 minutes) even if the peak value is not reached. A fifth step of judging a small amount when (T) is greater than a predetermined set value (x); and driving the first heater 8 only to operate the first and And a sixth process in which drying is terminated when the temperature difference (T) of the second temperature sensor (2) (6) is greater than the set value (ΔT).

The constant time (C minute) set according to claim 1, wherein when a minimum amount or no load is detected, the temperature difference T of the first and second temperature sensors 2 and 6 does not become larger than the set value ΔT. Thereafter, drying is terminated, the load-free detection method of the laundry drying, characterized in that.

The method according to claim 1, wherein when the temperature reaches a peak value when a predetermined time (10 minutes) has not elapsed since the start of operation, a constant amount of peaks is given, and the quantity in the drum 1 is regarded as a small amount. 2. The load-free detection method of dry laundry, characterized in that the operation of the first and second heaters (8) (9) is stopped by the temperature difference (T) of the temperature sensors (2) (6).

※ Note: The disclosure is based on the initial application.