JPH02297601A - Electric apparatus such as washing machine or the like - Google Patents

Abstract

PURPOSE:To improve performance as an apparatus by executing a similar operating program instead of a deisgnated operating program when abnormality exists in the content of data in it. CONSTITUTION:When the program A is designated and program abnormality exists in it, program start data is written on an address in the area of a RAM 62 where the program A is stored first, and next, the data of another address program No 11 is written because the program No 11 is conformed to the program A as the program with the same or most similar content. Next, the exclusive OR of another address is calculated, and a computed result is written as exclusive OR data, and also, program completion data is written on following addresses finally, respectively, then, transfer is completed, and also, the program No 11 is transferred to a working RAM 61, then, a cleaning process is executed sequentially. Thereby, the performance as the apparatus can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (A) Field of Industrial Application The present invention relates to electrical equipment such as washing machines and microwave ovens that execute a series of operating programs.

(B) Prior Art As a conventional example, a washing machine that stores a standard washing program in its memory and executes this program sequentially in response to the operation of a start key is disclosed in Japanese Patent Laid-Open No. 59-37988.
It is shown in the publication No. (D06F33102).

(c) Problems to be Solved by the Invention In the conventional example, if there is an abnormality in the data of the standard washing program, there is a risk that the program may not be executed.

The present invention solves these problems in electrical equipment such as washing machines.

(d) Means for Solving the Problems An electrical appliance such as a washing machine according to the present invention has the following configuration.

Operation program A consisting of a combination of multiple operating states
a storage unit A that stores the driving program A; a storage unit B that stores the driving program B having the same or almost the same content as the driving program A; and a storage unit B that stores the driving program A that is the same or almost the same as the driving program A; control means having a function of inspecting the contents of the operation program A, and reading out the operation program B from the storage section B and executing the operation program B when the contents of the operation program A are abnormal.

Note that the storage section A and the storage section B do not need to be separate storage devices, and may be, for example, different storage areas within the storage device.

In a washing machine, the operation program includes washing, rinsing,
It consists of operations such as deliquification, and in the case of a microwave oven, it consists of operations such as defrosting, microwave heating, and hot air heating.

(e) Effect: Operation program A is associated with operation program B, which has the same or almost the same content, and if the data content of operation program A is abnormal, operation program B is automatically Execute.

(f) Example Embodiments of the present invention will be described based on the drawings.

In Figure 1, (1) is a solvent tank (contents approx. 100
jN, and 1.1. l) Contains solvents such as lychloroethane and perchlorethylene. (2) is a cleaning tank disposed above the tank (1), and inside this cleaning tank (2) there is a cleaning drum (
3) is rotatably arranged. The solvent in the tank (1) is supplied into the cleaning tank (2) through the main liquid supply path (4), and the solvent in the cleaning tank (2) is supplied through the main drain path (5). The main liquid supply path (4) through which the liquid is collected into the tank (1) includes a liquid supply pump (6) and a valve A (7).
, cartridge type filter (8), three-way valve B (9)
and then reaches the cleaning tank (2). Further, when the filter (8) is not used, the valve C (10) is opened to bypass the filter (8).

The main drainage path (5) includes a button trap (11) communicating with the bottom of the cleaning tank (2), a drainage pump (12), a valve D (13), the filter (8), and the three-way valve ( 9
) to the tank (1). A coarse strainer (14) is disposed within the button lamp (11) to remove gravel and the like in the solvent. (15
) is a liquid level detection device disposed within the button trap (11), and includes reed switches (16) and (17) disposed at the low liquid level and the upper liquid level, respectively, and this reed switch ( 16) and a float-type magnet (18) that moves up and down between (17).

That is, when there is no liquid in the cleaning tank (2), the magnet (18) moves down by its own weight, turning off the reed switch (16). Further, the reed switch (17) is also in an OFF state. Then, when the liquid level in the tank rises and exceeds the low liquid level, the magnet (18) moves upward and separates from the reed switch (16), turning on the reed switch (16).

Furthermore, when the liquid level rises and reaches the upper limit liquid level, the magnet (18) approaches the reed switch (17) and turns on the reed switch (17).

The ON and OFF signals of the reed switches (16) and (17) are input to a microcomputer described later, and the reed switch (16) is turned on and the reed switch (17) is turned on.
The low liquid level is detected when the double switch (16) and (17) are turned on, and the upper limit liquid level is detected when the double switch (16) and (17) are turned on.

(19) is a regeneration path, which branches off from before the filter (8) and includes a valve E (20), a distiller (21), a condenser (
22) and the water separator (23) before reaching the tank (1).

The distiller (21) heats the solvent to gasify it and introduces it into the condenser (22). The condenser (22) includes a cooling pipe (24) to cool and liquefy the solvent gas from the distiller (21) and introduce it into the water separator (23).

The water separator (23) separates the liquefied solvent from the condenser (22) by specific gravity and transfers the clean solvent to the tank (1).
Return to Note that a cooling pipe is also provided within this water separator (23).

Here, the structure of the condenser (22) and water separator (23) will be explained based on FIG. 2.

(25) is the container body of the condenser (22), and (26) is the container body of the water separator (23), both of which are made of stainless steel and are integrated by blast contacting one to the other. . (27) is a residue pipe disposed in the condenser (22), and its wetting outlet (27a) is connected to the water separator (22).
3) It is located above the inside. The volume of the condenser (22) is 502, and the volume up to the hot liquid level is 40e. Therefore, the liquefied solvent exceeding 40ffi is transferred from the inlet port (27b) of the clear liquid pipe (27) to the water separator (23).
) is introduced within. (28) is a communication pipe that communicates the bottom of the condenser (22) with the cleaning tank (2), and valve F
Opening/closing is controlled by (29). (30) is a float switch that detects the lower limit liquid level of the liquefied solvent stored in the liquid condenser 6 (22), and (31) is a float switch that also detects the upper limit (clear liquid) liquid level. Detection signals from the switches (30) and (31) are input to a microcomputer described later. (32) is mentioned above;
22) is a drain valve for manually draining the liquefied solvent inside.

In the water separator (23), as is conventionally known, a solvent recovery cylinder (33) and a solvent recovery pipe (34) are installed upright, and the separated solvent that has sunk downward due to the difference in specific gravity is collected into the tank (1). return. (35) is a water drain valve in the water separator (23);
(36) is also a manual drain valve, and (37) is an introduction pipe for introducing the liquefied solvent from the drying mechanism described later.

Now, in FIG. 1, (38) is a drying structure for circulating drying air in the cleaning tank (2) during the drying process, including an air blower (39), a cooling cooler (40), The airflow after heat exchange with the laundry is cooled and dehumidified by the cooler (40), heated again by the heater (41), and sent to the washing tank (2). ). Then, the liquefied solvent generated during dehumidification is introduced into the water separator (23). (42) is a lint filter.

Thus, such a dry cleaner sequentially executes a program consisting of washing, rinsing, dewatering, and drying steps.

Inside the tank (1), soap is supplied by a soap supply device (not shown), and the concentration is always kept constant.

In the cleaning step, from the tank (1) to the main liquid supply path (4
) into the cleaning ff1(2) at the set liquid level (standard (
The solvent is supplied to the drum (high liquid level) up to about 352), and so-called slapping washing is performed by reversing the drum (3). Examples of cleaning methods include batch cleaning in which the liquid is stored in the cleaning tank (2), and cleaning in the main liquid supply path (4) and main liquid drain path (5).
There is a type of circulating cleaning that washes while circulating the water.

When the cleaning process is completed, a solvent is supplied to the regeneration path (19). In this regeneration path (19), the distiller (21)
the solvent gas from is liquefied in said condenser (22);
This condensation! (22) is stored within. Note that the amount of cleaning liquid at this time (approximately 352) is equal to the storage capacity of the condenser (22) (approximately 4
02), the condensed tls (2
2) It is stored inside and separated by specific gravity.

The rinsing step is similar to the washing step. However, since the liquefied solvent has already been stored in the condenser (22), new liquefied solvent is supplied to the water separator (23) through the clear liquid pipe (27) and is purified with high purity. The solvent is in the tank (
1).

In addition, if the clothing has been specially processed, if there are ring marks on the clothing, or if the clothing is white, it is necessary to rinse it with a high purity solvent that is not mixed with soap. The separation solvent stored in 1 (22) is supplied to the washing tank (2) via the communication pipe (28).

FIG. 3 shows the display section on the operation surface of the dry cleaner of this embodiment, where (43) is a time display section, in which the set time is displayed before operation, and the remaining time is displayed during operation. (44)
is a temperature display section, which displays the set temperature before operation and the measured temperature during operation.

Figure 1 shows a group of operation keys on the operation surface, (4
5) is a program key, and by operating the numeric keys 0 to 9 (46) after operating this key, one of ten fixed programs can be specified. Each fixed program is associated with program numbers 11 to 20. For example, by operating the program keys (45) + 11, the fixed program of program No. 011 can be specified, and by operating the start/pause key (47), the fixed program can be specified. You can start the program. (48) to (51) are program start keys, and the process contents and process times differ greatly.
It supports three programs (A, B, C, D), and you can start the program immediately by selecting it. Also,
Among the above fixed programs, No. 1l and program A,
No.12 and program B, No.13 and program C, N
o14 and program D are associated with each other so that they have the same content or very similar content (with slightly different process times, etc.).

Reference numeral (52) is an automatic call key, and when changing the process content of a specified program, by operating this key after changing the process content, it is possible to proceed to the next process. (53)
is a process time change key. For example, if you want to change the drying time, operate the automatic call key (52) to specify the drying process, operate this time key (53), and then enter the change time using the numeric keypad. do. This change time is displayed in the time display section (43), for example, if it is 10 minutes and 30 seconds, it is 10;
30 is displayed. (54) is a temperature setting key for setting the exhaust temperature during the drying process, and this set temperature is displayed on the temperature display section (44). (55) is a liquid level setting key, and three levels (low, middle, high) including the lower limit liquid level (low liquid level) can be set. Reference numeral (56) is a fluid resupply key, which will be described later, but is operated when it is desired to replenish cleaning fluid.

In FIG. 5, (57) is a microcomputer (for example, μPD781 manufactured by NEC Corporation) that is the center of control.
0HCW type (hereinafter referred to as microcontroller), various registers (
58), arithmetic unit (59), ROM (Read 0nl
y Memory) (60), Working RAM (
Rand.

m Access Memory) (61), etc. (62) is a RAM externally attached to the microcomputer (57), the memory contents of which are backed up by a battery (53).

FIG. 6 shows the control mechanism of the dry cleaner centered on the microcomputer (57), which includes an input key circuit (64) consisting of a group of the various operation keys;
the float switch (30) (31), the reed switch (16) (17), the exhaust temperature detection circuit (65),
Various abnormality detection switch groups (6
Based on the information from 6), etc., the loads (67) such as the various valves, pumps, motors, fans, etc., and the operations of the display device (68), etc. are controlled.

Now, in FIG. 5, the ROM (60) stores the program data of the programs No. 11 to No. 014, and the RAM (62) stores the program data of the program A.
-D program data is stored.

FIG. 7 shows the address relationship of each storage device, and addresses 0OOOH to 6999H are the ROM (60
), of which address ooo.

The basic dry machine operation control program is stored in addresses 6000H to 6999H, and
Program data of the programs No. 11 to No. 14 are stored. Also, address 70008-7
999H is the area of the working RAM (61),
This working RAM (61) includes the ROM (6
0) or the RAM (62), a data area is prepared at addresses 7000H to 7099H, and a program area is prepared at addresses 7100H to 7999H. Further, from address 8000H onward, each data of the programs A to D is stored in the area of the RAM (62).

FIG. 8 shows a specific data storage format of the program A stored in the RAM (62). That is, program start data is at address 8000H, program execution data is at addresses 8001H to 8043H,
Exclusive OR data at address 8044H, address 8
Program end data is stored in 045H.

Although not shown, the data of programs No. 15 to No. 20 are also stored in the RO to 1 (60), and the data of programs No. 5 to No. 10 are stored in the RAM (62).
Five blank data areas are provided for users to write programs created by themselves.

The operation based on such a configuration will be explained with reference to FIGS. 9 to 12. In the following explanation, it is assumed that program A is specified.

In FIG. 9, when program A is designated, the microcomputer (57) reads program start data at address 8000H and determines whether the data is 55H or not (S-1) (S-2). If it is not 55H, it is determined that the program is abnormal, and if it is 55■], the next address is 8001H~
The exclusive OR of the data at address 8043■ is calculated (S-3). Specifically, in FIG. 8, first, the exclusive OR of the data at addresses 8001H and 8002H is calculated, then the data at address 8003H is operated on this result, and the calculations are performed sequentially up to address 80438.

The exclusive OR data stored at address 8044H is the value when addresses 8001H to 8045H are normal, and then the fin (57)
-3) Compare the data calculated in 5-4) with the data at address 8044H. If they do not match, it is determined that the program is abnormal, and if they match, address 8045F (
The program end data of is read (S-5). Then, to determine whether this data is AAH or not, 5-6), AA
If it is not H, it is determined that the program is abnormal, and if it is AAH, it is determined that the contents of program A are normal, and this program A is transferred to the working RAM (61) and the cleaning process is sequentially executed.

Now, in the above explanation, (S-2) or (S-4) or (
If it is determined in step S-6) that the program is abnormal, program A is canceled and the control shown in FIG. 10 is performed.

That is, since program No. 11 is associated with program A as a program with the same content or as a program that is most similar, program A in the RAM (62)
First write program start data 55H at address 8000H (S-10), and then write program No. 55H at address 8°01H-8043H.
1i data (S-1, 1), address 8
Calculate the exclusive OR of o01H to 8043H 5-1
2), writes this operation result as exclusive OR data to address 8044H (S-13), and finally writes program end data AAH to address 8°45I (S-14) to end the transfer, This program No. 11 is transferred to the working RAM (61) and the cleaning process is sequentially executed.

Therefore, from now on, when program A is designated, the contents of program No. 11 will essentially be executed. Note that when programs B, C, and D are specified, the same control as in FIGS. 9 and 10 is performed, and in the case of a program abnormality, the corresponding programs
The contents of 4 will be transferred instead.

Next, the operation of supplying liquid from the tank (1) to the cleaning tank (2) will be explained based on FIG. 11.

The microcomputer (57) sets the initial value of the counter to 1 (S-20), and also determines the set liquid level.If the liquid level is low, the identification value A is set to 1, and if the liquid level is medium, the identification value A to 2,
If the liquid level is high, set the identification value A to 3.S-21) (S-
22) (S-23), Start liquid supply (S-24>.Low liquid level can be detected by the reed switch (16), so if a low liquid level is set, immediately Finish the liquid supply (S-25).In addition, if the medium level is set, the liquid supply will end 10 seconds after the low liquid level, and if the high liquid level is set, the liquid supply will end 20 seconds after the low liquid level. end.

The dry cleaner of this embodiment has an auxiliary liquid supply function in addition to the liquid supply operation described above.

That is, during the cleaning process or rinsing process, the refill key (5)
When 6) is operated, liquid supply operation is performed for 10 seconds. During this time, process operations may be interrupted or may be performed in parallel.

And, if you use this auxiliary fluid supply function, you can easily

liquid supply operations can be performed. That is, when it is desired to supply liquid to a high liquid level, first supply liquid to a low liquid level, and then operate the re-supply key (56) to supply liquid to a high liquid level. By doing this, for example, when the amount of solvent in the tank (1) is only equivalent to the low liquid level, in normal liquid supply operation,
Said pump (6) for a maximum of 20 seconds from low liquid level to high liquid level
However, if you use the auxiliary fluid supply function, this can be stopped in up to 10 seconds.

Note that during the liquid supply operation and the auxiliary liquid supply operation, if the upper limit liquid level is detected, the liquid supply is immediately terminated.

Finally, the operation of the drying process will be explained based on FIG. 12.

In this embodiment, the temperature of the exhaust gas from the cleaning tank (2) during the drying process is detected based on the input from the exhaust temperature detection circuit (65). As shown in FIG. 6, the exhaust temperature detection circuit (65) includes a resistor (69) and a negative characteristic thermistor (7).
0) is input to the microcomputer (57) through the A/D converter (71).

The negative characteristic thermistor (70) is provided at the exhaust outlet of the cleaning tank (2), and the resistance value of the thermistor (70) decreases as the exhaust temperature increases, so the microcomputer (57) has a low resistance value. signal is input.

On the other hand, the microcomputer (57) controls the temperature setting key (57).
They each have a reference value corresponding to the temperature set in step 4), and when the input from the exhaust temperature setting circuit (65) matches the reference value, it is detected that the set temperature has been reached.

In addition, the temperature setting key (54) is set to 30°C to 50°C.
It is possible to set (or change) the exhaust temperature at 45° C., but normally it is automatically set to 45° C. when the program is set.

Therefore, in FIG. 12, the microcomputer (57) is
The drying operation is performed until the exhaust temperature reaches the set temperature and the drying time has elapsed.

In this embodiment, the drying is performed at least until the exhaust gas temperature reaches the set temperature to obtain the minimum drying effect, but the set temperature may be the temperature at the outlet of the heater, It may be the temperature difference between the heater outlet and the exhaust gas.

(g) Effects of the invention In the electrical equipment such as a washing machine according to the present invention, even if there is an abnormality in the data content of the specified operation program, a similar operation program is executed instead, so that the electric equipment as an equipment can be improved. Improved functionality can be achieved.

[Brief explanation of drawings]

Figure 1 is a piping system diagram of the dry cleaner in the present invention.
Fig. 2 is a sectional view of the condenser and water separator, Fig. 3 is a front view of the display section, Fig. 4 is a front view of a group of operation keys, Fig. 5 is a schematic configuration diagram of the microcomputer and storage device, Fig. 6 The figure is a block circuit diagram of the control mechanism, FIG. 7 is a diagram of address relationships in each storage device, FIG. 8 is an explanatory diagram showing the program data storage format in RAM, and FIG. 9 is a flowchart showing program data inspection operation. , FIG. 10 is a flowchart showing the data transfer operation when a program abnormality occurs, FIG. 11 is a flowchart showing the liquid supply operation, and FIG. 12 is a flowchart showing the drying operation. (48) to (51)...Program start key (specifying means), (57)...Microcomputer (controlling means), (60)...ROM (storage section B), (6
2)...RAM (storage unit A). Applicant: Sanyo Electric Co., Ltd. Representative Patent Attorney Takuji Nishino (2 others) Kan9 Threshold Figure 5 Figure 6 Figure 8 Figure 7 July 9, 1999

Claims (1)

[Claims] (1) A storage unit A that stores an operation program A composed of a combination of a plurality of operating states, a means for specifying the operation program A, and an operation program B that stores the same or almost the same content as the operation program A. a storage section B having a function of inspecting the contents of the operation program A specified by the specifying means, and reading out and executing the operation program B from the storage section B when the contents of the operation program A are abnormal; An electrical appliance such as a washing machine, characterized in that it is equipped with a control means for controlling.