KR910006790B1 - Drier for clothes (clothes drying machine) - Google Patents

Abstract

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Description

Clothes dryer

1 is a control block diagram of a clothes dryer according to the present invention.

2a and b are flowcharts for explaining the operation.

3 is a side cross-sectional view.

4 is a front view of the panel.

* Explanation of symbols for main parts of the drawings

17: heater 10: rotating drum (drying room)

34: third thermistor (heating means) 35: micom

44: heater control unit 45: stroke time counter

50: sterilization administration control unit 51: temperature determination unit

52: sterilization time counter

The present invention relates to a clothes dryer for sterilizing clothes by supplying a high temperature heating wind heated by a heater to a drying room such as a rotating drum containing clothes and continuing the predetermined time.

Conventionally, in this type of clothes dryer, disclosed in Japanese Unexamined Patent Application Publication No. 60-100998, provides a job in which a high temperature condition is continued for a certain period of time during a drying administration, sterilization is carried out during the movement, and such conditions are established. This terminates the drying process.

Therefore, in the case of drying the thick garments, the drying itself is not formed at the end of the stroke, and the interior of the garments is not in a high temperature state, so that drying and sterilization are incomplete.

Therefore, what is disclosed in Japanese Patent Application Laid-Open No. 62-182197 discloses that the drying stroke and the sterilization stroke are separated and sterilized after drying.

In other words, even thick ones are dried to allow air to pass through and to be sterilized.

However, Japanese Patent Application Laid-Open No. 62-182197 discloses that sterilization is performed after drying at a high temperature, so that the clothing and resin constituents are damaged by heat during the most time in clothes and equipment. have.

The present invention thermally protects clothes and the like by performing the sterilization administration with good efficiency.

The solution according to the present invention includes a heat-sensing means for measuring the temperature of the heating wind, a temperature discriminating unit for determining that the measured temperature reaches a predetermined sterilization temperature, a heat setting amount of the heater to a strong setting, and the temperature The heater control unit having a weak setting for the determination unit output, the stroke time counter for measuring the predetermined longest time, the sterilization time counter for measuring the predetermined sterilization time from the first temperature discriminator output, and the above counters And a sterilization administration control unit which determines the measurement contents and does not operate the heater when the sterilization time has elapsed within the longest time or within the longest time.

In the sterilization administration of the present invention, for example, 20 minutes and a longest time are set, and the heater is heated to a strong setting during this time.

If the temperature is detected at 82 ° C as a sterilization temperature that is high enough to sterilize, and the temperature is detected, the sterilization time counter is measured. If the sterilization time elapses for 10 minutes, the stroke time (20 minutes) remains. The administration ends.

The heater is switched from a strong setting to a weak setting with respect to the sterilization temperature, and sterilization is performed at a temperature near the sterilization temperature during the sterilization time.

That is, thermal protection is performed while ensuring the effectiveness of sterilization by setting the longest time and setting the sterilization time by the sterilization temperature.

The present invention will be described below with reference to the accompanying drawings.

Referring to FIG. 3, (1) attaches the front plate (2) and the metal back plate (3) to the opening edge of the front and rear portions by the metal frame of the clothes dryer, and the clothes entrance (formed) formed on the front plate ( 4) is provided with the door 5. (6) is a metal annular drum support plate which is located in the whole of the base 1, and is provided in the base 1 and the front plate 2, and (7) is the metal partition arrange | positioned at the rear part in the base 1 Edition.

Here, the partition plate 7 is attached to and fixed to both sides of the base 1, and forms the plurality of vents 8 radially from the center portion. (9) is a fixed long axis through which the center of the partition plate (7) is fitted in the front and rear direction, and the rear end thereof is fixed by a bolt and washer to the central boss protruding to the rear of the rear plate (3). . Reference numeral 10 denotes a drum which is a resin-molded drying chamber, in which rotation is fitted to the outer periphery of the drum support plate 6 by the felt 11.

Moreover, this drum 10 attaches a bearing to the center part of a back surface, and it inserts it here in the front end of the support shaft 9, and prevents it from falling out by a bolt and a washer.

Moreover, this drum 10 forms the hot air outlet 12 which becomes a large number of see-through holes or radial slits in the back surface. Reference numeral 13 denotes a circulation path for communicating the hot air inlet 14 formed on the lower left side of the drum support plate 6 to the vent hole 8 of the partition plate 7 from the rear side of the plate, and attached to the drum support plate 6. A cylindrical circulation casing 16 is hermetically covered on the rear surface of the male duct 15 and the partition plate 7.

The duct 15 is provided with the honeycomb heater 17 which has a constant resistance temperature characteristic, and the drain part 18 arrange | positions the drain hole 18 which protrudes out of an apparatus in the bottom part.

The circulation casing 16 integrally forms the downward circulation pipe 19, connects this to the said duct 15 to the inner bottom part of the base 1, and is in communication. Denoted at 20 is a door switch as a problem closed detection means for detecting opening and closing of the door 5.

Reference numeral 21 is a cooling casing of substantially the same shape attached to the rear side of the circulation casing 16 so as to be continuous, and integrally forms the circulation pipe 19 and the partitioned downward cooling path 22, which is the framework 1 It communicates with the cold air outlet 23 of the bottom surface.

The rear plate 3 is covered with a rear portion of the cooling casing 12 and the cooling passage 22.

Reference numeral 24 denotes a heat-exchanging double-sided fan disposed in the circulation casing 16 and the cooling casing 21, and rotation is freely supported by inserting a metal on the rear side of the support shaft 9. Reference numerals 25 and 25 are the rotational transmission pulleys addressed to the fan 24. Reference numeral 26 denotes a motor serving as a driving means disposed on the inner bottom of the base 1, and the pulley 27 including the idle pulley and the belt 28 rotate the drum 10 at a low speed. At the same time, the fan 24 is rotated at high speed through the pulleys 25, 25 and the belt 28. Denoted at 29 is a sealing member for sealing between the hot air outlet 12 and the vent 8, 30 is a cold air inlet provided by radially punching in the center protruding portion of the back plate 3. Reference numeral 31 denotes a filter device detachably attached from the inside so as to cover the hot air outlet 12 on the rear surface of the drum 11.

(32), (33) and (34) are first, second and third thermistors as first, second and third thermal means, and the first thermistor 32 is the back of the partition plate 7. In the drum outlet 12 to measure the exhaust temperature, the second thermistor 33 is located in the duct 15 to measure the exhaust temperature after heat exchange and dehumidification and again before heating, and the third thermistor 34 Is located in the vicinity of the hot air inlet 14 in the duct 15 and again measures the exhaust temperature after heating, and uses the measured data for the clogging of the heater 17 and the filter 31.

In addition, the second thermistor 33 may detect the outside air temperature after heat exchange with the double-sided fan 24, or may detect the temperature of the outside air for cooling after passing through the dehumidifier if the dehumidifier is provided separately.

Next, a control block diagram for controlling the whole operation of the clothes dryer will be described with reference to FIG. The microcomputer (hereinafter referred to as a microcomputer) 35 that is a CPU, a ROM, a RAM, or an I / O is a start key 36 which also serves as a thermistor 32, 33, 34, a door switch 20, and a pause key. ), Various signals are input from the key 37 for switching the strength and weakness of the switching key 37 of various courses and the heating power by the heater 17 continuously or stepwise, and the heater 17 And output to a display device including the motor 26, the rich man 39, and the LED 40. The analog signals of the thermistors 32, 33, and 34 are subjected to A / D conversion and processed by the microcomputer 3.

As shown in the front view of the panel of FIG. 4, the panel is provided with operation keys 41 of the power switch and the above-described keys 36, 37, and 38, and the display device shows clogging and progress indications. The LEDs 40 corresponding to the strength and weakness of the heater and six courses are respectively provided.

When the sterilization course is selected, the microcomputer 35 executes the operation program in the order of drying stroke, sterilization stroke, cooldown stroke and soft wrinkle stroke by the operation of the start key 36.

A soft winkle stroke is a stroke in which the drum 10 is sometimes rotated for a few seconds at long time intervals so as not to be wrinkled after a cool down.

For this reason, the microcomputer 35 includes the stroke control section 42, the drive control section 43, the heater control section 44, the stroke time counter 45, the display control section 46, the calculating section 47, and the end determining section 48. The blockage determining unit 49, the sterilizing administration control unit 50, the temperature discriminating unit 51, the sterilizing time counter 52, the stroke time determining unit 53, and the sterilizing time determining unit 54 are configured.

And the control operation by the microcomputer 35 at the time of operation is demonstrated by FIG. 2A, b.

First, when the power switch 41 is turned ON, the microcomputer 35 is reset and the start signal from the start key 36 is subjected to key input processing such as the course switch key 37 and the heater switch key 38. Wait.

When the sterilization course is selected and a start signal is input, the administration control section 42 starts from the drying administration. That is, the drive control part 43 and the heater control part 44 output a drive signal, rotate the drum (motor 26), operate the heater 17, and measure the stroke time by the stroke time counter 45. The temperature measurement by the 1st, 2nd, 3rd thermistor 32, 33, 34 is started.

The display control section 46 of the microcomputer 35 turns on, turns off or flashes the plurality of LEDs 40 in accordance with the input and administration of each key. Moreover, (B) etc. are set as standard data, such as drying completion or clogging.

When the stroke time counter 45 counts 15 minutes, the microcomputer 35 displays a 15 minute flag, and the difference between the temperatures measured by the first and second thermistors 32 and 33 by the calculation unit 47 ( Calculate A) and let this value be (A ₀ ).

Then, the microcomputer 35 sees by the end discrimination unit 48 that the measured temperature difference A exceeded (A ₀ + B) afterwards, and if there is this discrimination unit output, the rich 39 is operated. After that, the control section 42 shifts to the next stroke.

The clogging determination unit 49 of the microcomputer 35 determines the increase or decrease of the air volume by the measurement temperature of the third thermistor 34 with respect to the reference value based on the measurement temperature of the second thermistor 33 on the day, When the decrease in the amount of air flow is caused, the LED 40 of the blocked by the display control section 46 blinks.

When the sterilization stroke is shifted from the drying stroke by the stroke control section 42, the sterilizing stroke control section 50 of the microcomputer 35 sets the heat generation amount (heating amount) of the heater 17 by the heater control section 44 to a strong setting. At the same time, the motor 26 is continuously driven by the drive control unit 43.

Then, the data necessary for the sterilization administration is set as 20 minutes for the longest time (TM) as an example, 82 degrees Celsius for the sterilization temperature (KH) and 10 minutes for the sterilization time (TK) as an example. By 45, the count of the stroke time T ₁ is started.

On the other hand, the third thermistor 34 measures the temperature of the drying wind (heating wind) supplied to the drum 10, and this measurement temperature K is sterilized by the temperature discriminating unit 51 of the microcomputer 35. Reaching temperature KH is being checked.

In this way, if the stroke is continued as the strong setting, the previous stroke may be a drying stroke, and thus, in general, the measured temperature K quickly reaches the sterilization temperature TK.

That is, the temperature discriminating unit output is obtained, and the sterilization temperature flag appears, and the heater control unit 44 changes the amount of heat generated by the heater 17 to a weak setting.

When such an initial temperature discriminating unit output is obtained, the count of the sterilization time T ₂ by the sterilization time counter 52 is started.

The sterilization administration control unit 50 sets the heater 17 to the weak setting by the heater control unit 44 every time the temperature determination unit 51 outputs, and when another determination unit (not shown) determines about 80 ° C. A strong setting is made, and the measurement contents of both counters 45 and 52 are checked by the stroke time judging unit 53 and the sterilization time judging unit 54.

That is, (T ₁ ) (TM) or (T ₂ ) ≥ (TK) is checked.

When the discriminating sections 53 and 54 are outputted, the heater 17 is not operated to terminate the sterilization administration.

According to the present invention, the time of sterilization administration is set, and the heat generation amount of the heater is increased from the beginning of this time so that the sterilization temperature according to the type of clothing is increased during this period, and then the sterilization treatment is carried out at a predetermined sterilization time, Depending on the type of sterilization, sterilization can be performed reliably, and the steeping time can be longest and the sterilization treatment can be performed within that time, thereby reducing the risk of overheating of clothing and the like.

Therefore, it is possible to provide a clothes dryer that can be safely sterilized.

Claims (1)

A drying stroke for supplying heated air heated by the heater 17 to the drying chamber 10 and drying the clothing in the drying chamber 10, and a sterilizing stroke for sterilizing the clothing at a higher sterilization temperature after the drying stroke. In the clothes dryer for performing the operation, the heating means 34 for measuring the temperature of the heating wind, the heater control unit 44 for switching the strength and weakness of the heater 17, and the stroke time for measuring the maximum time limit of the sterilization administration A counter 45, a sterilization time counter 52 for measuring a predetermined sterilization time from the time when the temperature of the dry wind in the sterilization stroke first reaches the sterilization temperature, and the temperature of the dry wind in the sterilization stroke as the sterilization temperature. When the heater 17 is switched to the strength and weakness, and either one of the measurement by the stroke time counter 45 and the measurement by the sterilization time counter 52 is finished, And a sterilization administration control unit (50) for instructing the heater control unit (44) to stop the driving of the heater (17).

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