JPS58217190A - Drier - 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 The present invention relates to a dryer equipped with an operating time display device.

In an automatic detection operation in which a drying operation is performed while controlling the inlet temperature or outlet temperature of the drying chamber and the drying operation is terminated when the temperature suddenly changes, the required drying time is not known before operation. Therefore, in the past, the elapsed time was displayed during driving, and by reading the display at the end of driving, the required time was recognized, and an estimate of the required time for the next driving was made.

However, since the display disappears as soon as the operation ends, the user has to memorize it until the next operation.

The present invention is designed to store the required time in the dryer Vce and display the time required by pressing the time key when necessary.

To explain based on the figure below, (1) is a clothes dryer that has a clothes loading door (2) on the front, and above this door is a main switch for turning on and off the power [38 Dryness adjustment shield (4
j, keyboard (5), fluorescent display tube for time display (6)
, a fluorescent display tube (7) for displaying temperature, and a steam pressure gauge 18) for displaying the power of steam, which is the heat source for drying.

The keyboard (5) includes a course selector including keys (A), (B), (Q, and D) for determining automatic detection operation, time control operation, manual operation, or live steam immersion operation; Equipped with a time/temperature selector including keys (G) (F) (G) (搏) for setting hot and cold operation time, cold operation time, inlet temperature, and outlet temperature, and a number key (I). In the case of the present embodiment, the automatic detection operation described above means that the outlet temperature is detected while maintaining the inlet temperature to the drying chamber at a constant VC, and that the outlet temperature once maintains the constant temperature and then rapidly rises again. Operation that ends drying when it starts and switches to cold air operation'
4, time-controlled operation refers to the operation that ends drying and shifts to cold air operation when a preset time is reached, and manual operation refers to the case where only drying operation or cool smell operation is performed. The live steam supply operation refers to an operation in which live steam is blown into the drying chamber to moisten the clothes.

On the other hand, inside the clothes dryer, a drying chamber (9) is formed in the center, a drying drum (l) is rotatably installed in this chamber, a radiator 1111 [13α3 is divided into three parts is installed in the upper part, and a radiator 1111 [13α3] is installed in the lower part. A bottomed cylindrical filter I and an exhaust blower are installed in the radiator. In addition to connecting to the supply pipe outlet, the other two radiators σaa31 are connected to the steam supply pipe (I) via a common second steam valve. is branched and opens into the drying chamber (9) at the tip thereof
C% A live steam valve ■ and a manual opening adjustment valve (2) J are inserted in the middle of this humidifying pipe. The drying drum ntb is rotated by a motor @ via a pulley (c). n
, Exhaust air blower 8! [15 is rotated by another motor f2sK. The exhaust blower rotates.
Air is sucked in from the intake port and the radiator 111III
It is heated at 2 o 31, then enters the drying drum Wakkanai to remove moisture from the clothes, and then is discharged from the exhaust port. An inlet temperature detector □□□ consisting of a thermistor is placed between the radiator συLIQ31 and the drying drum 11.
Exit sensitivity detectors also made of thermistors are provided at the exits l1lI of 1[1, respectively. The board is a printed circuit board that constitutes a control circuit, and the block diagram of this circuit is shown in Figure 3.

The control circuit is composed of a microcomputer at its core, and the C
l1) central processing unit (in the case of this embodiment, it has a built-in FiAM; hereinafter abbreviated as CPU) and R that stores the program.
It is connected to OMG3 by an address bus (12 bits) for specifying program addresses and a data bus (8 bits) for transferring instructions to the CPU (3υ). IC for output expansion (331
h and (2) are connected so that it can handle a large number of inputs and outputs. The inputs of the CPU (3υ) include 6 bits from the D/A converter ■ which outputs the set values of inlet temperature, outlet temperature, and dryness m8 knob + 47, as well as operation course, time and temperature settings, and operation start.・Keyboard switch for stop operation and 4 bits from the preset switch mark to select and set the driving course when turning on the power, 50Hz/60H2 specification changeover switch, door switch, and thermal switch GD. 3 bits, 1 bit from the reset circuit (381) for resetting the VCCPU61 at power-on, and an external interrupt that generates a rectangular wave voltage of the power supply wave number and inputs it to the external interrupt terminal of the CPU13n. There is one bit from circuit C391.The output f of CPUclD is to the fluorescent display tube (6) for displaying the time, etc., and to the fluorescent display tube 17 for displaying the temperature, etc. to the D/A converter @ for temperature measurement and reading the set value of the dryness adjustment knob, steam valve f16) 081, live steam valve ■, fan motor (company), drum motor and an output to the buzzer 3a.

Here, the operation of the dryer of this embodiment will be sequentially explained according to the flowchart of FIG. First, when the power is turned on, the reset circuit operates, and the CPU
Execution starts from the instruction stored at the start address of 3n,
Reset all outputs and save RAM head area! :997, then 50 Hz / 60 H2 specification changeover switch C
Input the open/close status of 37+ and decide whether it is 50Hz specification or 60Hz specification. Then ℃, course preset switch
Set the time and temperature of the driving course specified by the switch.

Here, the setting of the driving course will be briefly explained. When the power is turned on, the operation course and program number are set by the above-mentioned course/puy set switch (to) (to), so the inlet set temperature, outlet set temperature, hot air set time, and The cold air setting time data is written to a predetermined area secured in RAMK in the CPU UCIυ.RA.

In addition to this, an area for storing data on hot air operating time and cold air operating time is stored in M, and remaining operating time or total operating time is stored.

The driving course can also be set using the keyboard (51vc), and when the driving course and program number are set using the keyboard, the data in the VCROM (to) is written to the RAM in the same way as when the power is turned on. Other than the set time and temperature, changes can be made using the keyboard (5), and some of the pre-prepared drying programs can be changed.Operation is performed based on the data in the RAM.Initial setting when the power is turned on When the settings are complete, the screen shown in Figure 4 (
The process moves on to the driving routine starting from ■ in the flowchart of b). First, the input from the external interrupt circuit (g) is used to count the time of one second of vehicle position, and during driving, it is used as a reference for control of the exit direction and used to count the driving time. Next, the D/A converter (to) reads the inlet temperature, outlet temperature, and dryness adjustment knob (4) settings, and the fluorescent light is displayed while displaying the time and temperature on the display tubes (6) and (7). , the input of the keyboard switch (5) is checked, and if there is an input, a mental process is carried out in response to the input, for example, when the automatic detection course is pressed, the automatic detection course is set. After completing the course settings, press the start key (keyboard switch (51K included)).
, the state of the door switch (37) is input, and if the door is closed, it enters the operating state.

When operating according to the automatic detection course, the temperature sensor on the inlet side @
Therefore, while keeping the temperature of the hot air blown into the drying chamber constant, when the temperature on the outlet side of the drying chamber starts to rise rapidly, the drying operation is ended and the cooling operation is started. On the other hand, during drying operation, the elapsed operating time and the temperature at the exit side of the drying chamber are monitored by the RA in cptrc31), which constitutes a part of the microcomputer.
While writing in M, the information is sequentially displayed on the fluorescent display tube +63 (7), and during the cold air operation, the elapsed time of the cold air operation is displayed. The elapsed time written in the microcomputer rc is retained in memory even after the drying operation ends until the next operation is started.
) By pressing the hot air time key @, the time required for heat R operation will be displayed on the fluorescent display tube (6), and after the cold air operation is completed, by pressing the cold air time key ■, the time required for cold operation will be displayed. The time will be displayed.

As mentioned above, since the automatic detection operation ends the drying operation when the predetermined drying state rC is delayed, it is not possible to know the required time before starting the operation, but once the operation is started, The required time is stored in the microcombinator and can be read out and displayed even after the operation is completed, so before the next operation, you can read out the previous required time and use it for the next operation. You can know the approximate time required, making it easier to plan your work.

[Brief explanation of drawings]

Figure 1 is the front view of the dryer, Figure 2 is a vertical side view, Figure 3 is a block diagram related to information transmission, Figure 4 is a detailed view of the keyboard, Figure 5 (A), (B), and (C). is a flowchart. (6) Fluorescent display tube, inlet temperature detector, outlet temperature detector, (g) - hot air time key.

Claims (1)

[Claims] (1) In a device that operates while detecting the inlet temperature or outlet temperature of the drying chamber and terminates the drying operation by detecting a sudden change in temperature, the elapsed time is constantly stored in the microcomputer during operation. This dryer is characterized by displaying the operating time while the operation is completed, retaining the memory even after the operation is completed, and reading out and displaying the memorized operation execution time when the patented key is pressed. (21) The dryer according to claim 1, wherein the specific key is a time setting key.