JP2012139581A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a washing machine which makes it possible to resume operation from an operation progress stage stored in a nonvolatile memory by using stored contents when power failure occurs during the operation and thereafter power is returned, and to restart the operation from the beginning when a user turns a power switch off during the operation and thereafter the user switches the power on.SOLUTION: A washing machine allows a nonvolatile memory to store a setting content and a progress situation of an operation during the operation, and when the normal operation ends or when detecting turning off of a power switch, clears the memory of the nonvolatile memory, and when the previous power-off is caused not by the end of normal operation or turning off of the power switch after power-on (YES in A3), displays the occurrence of power failure (A4'), and by a subsequent operation of a start switch (A6'), resumes the operation (A7') from the operation progress stage stored in the nonvolatile memory by using the stored contents.

Description

  The present invention relates to a washing machine with improved control content when power is cut off during operation.

Conventionally, in a washing machine, when the power supply is cut off during operation, especially when a power failure occurs, the operation generally remains interrupted, and the user has to perform the operation again after the power supply is restored. . In this case, a non-volatile memory is provided. In this non-volatile memory, the settings and progress of operation are stored during operation. When a power failure occurs, the operation stored in the non-volatile memory is performed when the power is restored (turned on) thereafter. From the progressing stage of the above, what has been made to restart the operation with the stored contents is provided (for example, see Patent Document 1).
Japanese Patent Laid-Open No. 7-275561

  According to the thing of the above-mentioned patent document 1, a user can restart an operation | movement from the stage which interrupted after the power supply after a power failure return, and is convenient. However, in Patent Document 1, not only when a power failure occurs during operation, but also when the power switch is turned off by the user during operation, the operation stored in the nonvolatile memory is performed at the subsequent power supply return (turn-on). The operation was resumed with the memorized content from the progress stage.

  The present invention has been made in view of the above circumstances. Therefore, the purpose of the present invention is the contents stored from the progress stage of the operation stored in the non-volatile memory when the power failure occurs during the operation and the power supply is subsequently restored. An object of the present invention is to provide a washing machine that can restart the operation and can restart the operation from the beginning when the power switch is turned off by the user during the operation by turning on the power thereafter.

  In order to achieve the above object, the washing machine of the present invention can detect that the power switch is turned off and includes a non-volatile memory. The progress status is memorized, and when the normal operation ends or when the power switch is turned off, the non-volatile memory is cleared, and when the power is turned on, the previous power cut-off ends the normal operation. Or, when the power switch is not turned off, display that a power failure has occurred, and then restart the operation with the stored contents from the operation progress stage stored in the non-volatile memory by operating the start switch. It is possible to make it possible.

  According to the above means, when a power failure occurs during operation, the operation can be resumed with the stored contents from the operation progress stage stored in the non-volatile memory by operating the start switch under the subsequent power recovery condition. When the power switch is turned off by the operating user, the operation can be restarted from the beginning by turning on the power thereafter.

Hereinafter, a first embodiment (first embodiment) of the present invention will be described with reference to FIGS.
First, FIG. 13 shows the overall structure of a washing machine, in particular, a vertical washing machine, and an outer box 1 that is an outer shell, a base 1a at the bottom, and a box body 1b that is placed and coupled thereto. And a top cover 1c attached and bonded to the box body 1b. Inside the outer box 1, a water tank 2 is elastically supported by an elastic suspension mechanism 3 mainly composed of a plurality of suspension rods 3 a (only one is shown). Is provided with a rotating tub 4.

  The rotary tank 4 has a basket shape having a large number of dewatering holes 5 (only a part of which is shown) in the entire peripheral side wall, and a liquid-filled rotary balancer 6 is attached to the upper edge. Inside the rotating tub 4, a stirring body 7 is disposed at the bottom, and further, a driving device 8 is disposed from the bottom of the water tub 2 to the outer lower portion. The drive device 8 is mainly composed of, for example, an outer rotor type DC brushless motor, and has a clutch mechanism (not shown) incorporated therein, and stops the rotating tub 4 during washing (washing and rinsing) during operation. For example, the stirring body 7 is directly rotated alternately in both forward and reverse directions, and the rotating tank 4 is directly rotated in one direction together with the stirring body 7 during dehydration.

  In addition, a drain port 9 is formed at the bottom of the water tank 2 and drained from the drain port 9 through a drain valve 10 and a drain hose 11. In addition, an air trap 12 for water level detection is provided in parallel to the drain port 9, and an air tube 13 is connected to the air trap 12.

  On the other hand, FIG. 14 shows the operation panel 14 in a specific display state to be described later. The operation panel 14 is provided, for example, at the front portion of the top cover 1c, and includes a power-on switch 15 and a power-off switch 16 as power switches. In addition to having a power failure indicator 17 for indicating that there was a power failure, a reservation switch 18 for setting a driving reservation, a reservation indicator 19 for displaying a driving reservation setting, and a driving reservation. Remaining time display 20 for displaying the remaining time (reservation waiting time) from when the operation is started, wind drying switch 21 for setting wind drying, and wind drying indicator 22 for displaying the setting of wind drying have.

Further, the operation panel 14 includes a course switch 23 for setting a driving course, a standard display for displaying the driving setting course, strong washing, rinsing, putting on, blankets, tank washing course indicators 24-29, A start switch 30 for starting operation, a water level switch 31 for setting a water level, water level indicators 32 to 35 for displaying a set water level, a washing switch 36 for setting a washing process, and a setting time for washing are displayed. The washing time to be displayed is an indicator 37, a rinsing switch 38 for setting the rinsing process, a rinsing frequency display 39 for displaying the number of times of rinsing, a water rinsing indicator 40 for indicating the setting of water rinsing, and a dehydration process. A dehydration switch 41 for setting and a dehydration time display 42 for displaying a set time for dehydration are provided.
In addition, LED is used for the above-mentioned various displays.

  On the other hand, FIG. 15 shows an electrical configuration mainly composed of the control device 43, and the control device 43, which is the core of the control device 43, is composed of, for example, a microcomputer disposed in the top cover 1c. The control means controls the overall operation of the washing machine.

  The control device 43 is supplied with power from the power supply 44 by operating the power-on switch 15, and the power supply relay circuit 45 holds the power supply state by a signal from the control device 43 based on the power supply 44. . When the power-off switch 16 included in the operation panel 14 is operated, the power relay circuit 45 releases the power supply state by a signal from the control device 43 based on the operation. Further, even when power supply is interrupted due to a power failure or the like, the power relay circuit 45 cancels the power supply state to the control device 43.

  In addition, various operation signals are input to the control device 43 from a switch input unit 46 including other switches provided in the operation panel 14, and rotation of the drive device 8 (and thus rotation of the rotating tank 4 and the stirring body 7). A rotation detection signal is input from a rotation sensor 47 which is a rotation detection means provided to detect the water level, and a water level detection provided to detect the water level in the water tank 2 through the air tube 13 to the air trap 12. A water level detection signal is input from a water level sensor 48 as means. The control device 43 performs a calculation to divide the rotation detection signal per unit time input from the rotation sensor 47 by the unit time, and thereby the rotation speed of the drive device 8 (and thus the rotation speed of the rotary tank 4 and the stirring body 7). ) Is calculated.

  The control device 43 controls the operation of the display unit 49 including various displays included in the operation panel 14 based on those inputs and a control program stored in advance, and a buzzer (particularly an electronic buzzer). 50 and the operation of the water supply valve 51 provided so as to supply water into the water tank 2, the drain valve 10, and the driving device 8, and between the non-volatile memory (EEPROM) 52 The storage information is exchanged as described later.

Next, the operation of the above configuration will be described.
FIGS. 1 to 5 show the contents of control of the washing machine by the control device 43. In particular, FIG. 1 shows the content of control when the power is turned on. The control device 43 operates when the power-on switch 15 is operated. As described above, power is supplied from the power supply 44, and based on this, the power supply relay circuit 45 is held in the power supply state (step A1).

  Thereafter, the storage information of the power failure is read from the nonvolatile memory 52 (step A2), and it is determined whether or not the power failure information is cleared from the read information (step A3). If it is determined in step A3 that the power failure information has been cleared (YES), the normal power-on display is displayed on the various displays on the operation panel 14 (step A4), and the buzzer 50 is switched on. Operate (step A5). In this case, the normal power-on operation of the buzzer 50 is to operate the buzzer 50 once for 0.05 seconds.

Thereafter, it is determined whether or not the start switch has been operated (step A6). If it is determined that the start switch has been operated (YES), normal operation is executed (step A7).
On the other hand, if it is determined in step A3 that the power failure information has not been cleared (NO), information (non-volatile) before the occurrence of the power failure is displayed on the various displays of the operation panel 14 from the stored information read in step A2. The setting contents and progress of the operation before the occurrence of the power failure stored in the memory 52 are displayed (step A4 ′).

  FIG. 14 shows an example of the content displayed in step A4 ′. In this case, the power failure indicator 17 flashes to indicate that a power failure has occurred, and the blanket course indicator 28 The water rinsing indicator 40 is lit, the rinsing count indicator 39 is “2” (2 times), the dehydration time indicator 42 is “5” (5 minutes), and the water level indicator 32 is lit. As a result, the set course before the occurrence of a power outage is a blanket course, and the operation stops during the second rinsing and a 5 minute dehydration time is left, indicating that the set water level was high. ing.

  At that time, the buzzer 50 is operated with a power failure (step A5 '). In this case, the operation with the occurrence of a power failure of the buzzer 50 is to repeat the operation of the buzzer 50 for 0.2 seconds and the stop for 0.3 seconds 10 times. It is operated in a mode different from the time (particularly in a different mode).

  Thereafter, it is determined whether or not the start switch has been operated (step A6 '). If it is determined that the start switch has been operated (YES), the operation is performed with the displayed contents from the progress stage of the operation displayed in step A4'. To resume. That is, the operation is restarted with the stored contents from the operation progress stage stored in the nonvolatile memory 52 before the occurrence of the power failure (step A7 ′).

  Next, FIGS. 2 to 5 show in detail the control contents of the normal operation executed in step A7. First, it is determined whether or not the operation is in progress (step A11). In this case, if the operation end process in step A52 described later is not performed, it is determined in this step A11 that the vehicle is in operation (YES). Next, it is determined whether or not there is a reservation setting ( If it is determined in step A12) that there is no setting (NO), it is further determined whether there is a washing process setting (step A13).

  Here, if the standard course is set (the standard course is automatically set), it is determined in step A13 that there is a setting (YES). Next, whether or not the laundry amount detection process has ended. (Step A14), and if it is determined that the process has not been completed (NO), the power failure information is stored at this stage (step A15).

  FIG. 6 shows the process contents of the standard course and the process memory No. as the power outage information in the progress stage. The process memory No. is “1” in the process of detecting the amount of laundry. The process storage No. “1” is stored (see FIG. 2). In this standard course, the process memory No. of the water supply process after the process of detecting the amount of laundry is “3”, the process memory No. of the drainage process after the wash process is “4”, and the first intermediate dehydration (dehydration 1) process. The process memory No of the subsequent first shower rinse (shower rinse 1) process is “5”, and the process memory No of the second shower rinse (shower rinse 2) process after the second intermediate dehydration (dehydration 2) process is “6”. The process memory No. of the water supply process after the third intermediate dehydration process (dehydration 3) is “7”, the process memory No. of the drainage process after the final rinse process is “8”, and the process memory of the wind drying process after the final dehydration process is stored. No is “9”, and there is no storage No for other processes, that is, no storage is performed.

  In addition, FIG. 7 shows the course contents of the extra course and the course storage No. as the power outage information in the progress stage. FIG. 8 shows the course contents of the standard course with the reservation setting, The process storage No as the power outage information in the progress stage is shown. FIG. 9 shows the process content of the extra course with the reservation setting and the process storage No. as the power outage information in the progress stage. The process contents of the tank cleaning course and the process memory No. as power outage information in the progress stage are shown (omitted for other courses).

  FIG. 11 shows a part of the storage map of the nonvolatile memory 52. At the address 10, the course has a storage capacity of 4 bits, the water level has a storage capacity of 2 bits, and the power failure timing has a storage capacity of 4 bits. The dehydration time is stored in a 4 bit storage capacity, the address 12 has a washing time of 4 bit storage capacity, the number of rinses is 3 bit storage capacity, the air drying time is 3 bit storage capacity, and the soaking time is 3 bit. Each is stored in the storage capacity.

  Furthermore, in FIG. 12, the storage content stored in the nonvolatile memory 52 is shown for each item together with each storage capacity, and the storage content for the course is 1 for standard, 2 for strong wash, Rinse firmly 3, blanket 4, extra 5, bath washing 6, and other water level, washing time, etc. It's like that.

  After step A15, the amount of laundry is detected (step A16 shown in FIG. 2). The detection of the amount of laundry is performed, for example, by rotating the rotating tub 4 to a predetermined rotational speed, the time required for the rotation, and then stopping the driving of the rotating tub 4 to rotate the rotating tub 4 by inertia, thereby rotating the rotating tub. The amount of laundry is detected by the rotational load of the driving device 8 from the time required for the rotational speed of 4 to fall to a predetermined rotational speed. Accordingly, at this time, the rotation sensor 47 and the control device 43 function as laundry amount detection means.

  After step A16, the end of the laundry amount detection process is set (step A17). Thereafter, the process returns to step A11, and if steps A12 and A13 are performed in the same manner as described above and the process reaches step A14, it is determined from the result of step A17 that the process of detecting the amount of laundry has been completed (YES). Is determined whether or not the extra course is set (step A18), and if it is determined that it is not set (NO), the power failure information is stored at this stage (step A19). The power outage information at this time is stored as the process storage No. “3”, assuming that the process of detecting the amount of laundry in the standard course has been completed and the process has reached the next water supply process (see FIG. 6).

  Thereafter, a washing process is performed from the water supply process (step A20). In the water supply stroke, the water supply valve 51 is opened and the water amount up to the water level corresponding to the amount of laundry detected in step A16 or the water amount up to the water level manually set by the user by operating the water level switch 31 is as follows. Water is supplied into the water tank 2, and the washing process is to wash the laundry by rotating the stirring body 7 alternately in both forward and reverse directions, for example.

  After step A20, the end of the washing process is set (step A21), and then the setting of the washing process is cleared (step A22). Thereafter, the process returns to step A11 again, and if step A12 is followed through step A13 to step A13, it is determined from the result of step A22 that no washing process is set (NO). Next, the rinsing process is performed. Is determined (step A23 shown in FIG. 3).

  If it is determined in step A23 that there is a setting (YES), it is determined whether or not the first intermediate dehydration (dehydration 1) process has been completed (step A24) and not completed (NO). If determined, the power failure information is stored at this stage (step A25). The power outage information at this time is stored as the process storage No. “4”, assuming that the washing process of the standard course is completed and the process reaches the next drainage process (see FIG. 6).

  Thereafter, the first intermediate dehydration process is performed from the drainage process (step A26). In the drainage process, the drain valve 10 is opened, and the water in the water tank 2 is discharged outside the machine through the drainage hose 11. In the first intermediate dehydration process, the laundry is rotated by rotating the rotary tank 4. This is used for centrifugal dehydration.

  After step A26, the end of the first intermediate dehydration process is set (step A27). Thereafter, the process further returns to step A11, and after steps A12, A13, and A23 are performed in the same manner as described above, and step A24 is reached, it is determined from the result of step A27 that the first intermediate dehydration process is completed (YES). Therefore, next, it is determined whether or not the rinsing process is set to 2 times (step A28). If it is determined that the rinsing process is set (YES), is the rinsing process set to 3 times? It is determined whether or not (step A29).

  If it is determined in step A29 that it has been set (YES), power outage information is stored at this stage (step A30). The power outage information at this time is stored as the process storage No. “5”, assuming that the first intermediate dehydration process of the standard course has been completed and the process has reached the next first shower rinse (shower rinse 1) process. (See FIG. 6).

  Thereafter, a second intermediate dehydration (dehydration 2) process is performed from the first shower rinsing process (step A31). The first shower rinsing step is to rinse the laundry by alternately or simultaneously performing water supply (water injection) into the water tub 2 and rotation of the rotary tub 4, and the second intermediate dehydration step is the first intermediate dehydration step. This is performed in the same manner as in 1 intermediate dehydration process.

  After step A31, the end of the first shower rinsing process is set (step A32). Subsequently, the setting of the rinsing process is cleared three times and the setting of the rinsing process is performed twice (step A33). Thereafter, the process returns to step A11, and if steps A12, A13, A23, A24, A28 are followed in the same manner as described above to reach step A29, the rinsing process is not set to three times from the result of step A33 (NO). Therefore, next, power failure information is stored at this stage (step A34). The power failure information at this time is stored as the process storage No. “6”, assuming that the second intermediate dehydration process of the standard course has been completed and the process has reached the next second shower rinse (shower rinse 2) process. (See FIG. 6).

  Thereafter, a third intermediate dehydration (dehydration 3) process is performed from the second shower rinsing process (step A35). The second shower rinsing process is performed in the same manner as the first shower rinsing process, and the third intermediate dehydrating process is performed in the same manner as the first and second intermediate dehydrating processes. After step A35, the end of the second shower rinsing process is set (step A36). Subsequently, the setting of the rinsing process is cleared twice and the setting of the rinsing process is performed once (step A37).

  Thereafter, the process returns to step A11, and if steps A12, A13, A23, and A24 are followed in the same manner as described above and step A28 is reached, it is determined from the result of step A37 that the rinsing process is not set to twice (NO). Therefore, next, power failure information is stored at this stage (step A38). As for the storage of the power failure information at this time, the process storage No. “7” is stored assuming that the second shower rinsing process of the standard course is completed and the process reaches the next water supply process (see FIG. 6).

  Thereafter, the final rinsing and dehydration process is performed from the water supply process (step A39). In addition, a water supply process is performed similarly to the said water supply process, and a final rinse process is performed similarly to a washing process. After step A39, the end of the final rinsing process is set (step A40), and then the setting of the rinsing process is cleared.

  After that, returning to step A11 and going through steps A12 and A13 in the same manner as described above and reaching step A23, it is determined from the result of step A40 that no rinsing process is set (NO). Then, it is determined whether or not a dehydration process is set (step A42 shown in FIG. 4).

  If it is determined in step A42 that there is a setting (YES), it is determined whether or not the final dehydration process has been completed (step A43). If it is determined that the process has not been completed (NO), this is determined. In step, power outage information is stored (step A44). The power failure information at this time is stored as the stroke storage number “8” assuming that the final rinsing stroke of the standard course has been completed and the next drainage stroke has been reached (see FIG. 6).

  Thereafter, a final dehydration process is performed from the drainage process (step A45). The drainage process is performed in the same manner as the drainage process, and the final dewatering process is performed in the same manner as each of the intermediate dewatering processes, but with a longer time.

  After step A45, the end of the final dehydration process is set (step A46). Thereafter, it is determined whether or not an air drying process is set (step A47). If it is determined that there is (YES), the process returns to step A11. Then, from the returned step A11, after passing through steps A12, A13, A23, A42 in the same manner as described above, and reaching step A43, it is determined from the result of step A46 that the final dehydration process is completed (YES). Next, power outage information is stored at this stage (step A48). The power outage information at this time is stored as the process storage No. “9”, assuming that the final dehydration process of the standard course has been completed and the process has reached the next wind drying process (see FIG. 6).

  Thereafter, a wind drying process is performed (step A49). The air drying process is performed in the same manner as the final dehydration process. After step A49, the setting of the dehydration process is cleared (step A50), and the process returns to step A11. And if it returns to step A42 from the returned step A11 through steps A12, A13, A23 in the same manner as described above, it is determined from the result of step A50 that the dehydration process is not set (NO). Next, the stored power failure storage information is cleared (step A51), and an operation end process is performed (step A52). Therefore, when the power is turned on thereafter, it is determined in step A3 that the power failure information has been cleared (YES).

  Although not shown, the control device 43 is also adapted to detect the operation of the power-off switch 16 during operation, that is, the power switch off, and when the power switch off is detected, The stored power outage storage information is cleared. Therefore, also in this case, when the power is turned on thereafter, it is determined that the power outage information is cleared (YES) in step A3.

If it is determined in step A47 that the air drying process is not set (NO), the process proceeds to step A50.
If it is determined in step A18 shown in FIG. 2 that the extra course is set (YES), it is next determined whether or not the extra course has been completed (step A53). If it is determined that the process has not been completed (NO), the power failure information is stored at this stage (step A54). The power outage information at this time is stored as the process storage No. “2”, assuming that the process of detecting the amount of laundry in the extra course has been completed and the process has reached the next water supply process (see FIG. 7).

  After this, a process of setting up is performed from the water supply process (step A55). The soaking process is to immerse the laundry in washing water. After step A53, the end of the setting process is set (step A56), and then the process returns to step A11. Then, from the returned step A11, after passing through steps A12, A13, A14, A18 in the same manner as described above, and reaching step A53, it is determined from the result of step A56 that the extra process has been completed (YES). Then, the process proceeds to Step A19.

  On the other hand, if it is determined in step A12 that there is a reservation setting (YES), it is next determined whether or not the reservation waiting time has ended (step A57 shown in FIG. 5). If it is determined that there is not, the process goes through steps A58 to 61 similar to steps A14 to A17, and then returns to step A11.

  Then, from the returned step A11, the steps A12 and A57 are followed in the same manner as described above to reach the step A58, and if it is determined that the laundry amount detection process has been completed (YES), then setting the extra course Is determined (step A62), and if not set (NO), the power failure information is stored at this stage (step A63). The power outage information at this time is stored as the process storage No. “3”, assuming that the process of detecting the laundry amount of the standard course accompanied by the reservation setting has been completed and the reservation standby time has been reached (see FIG. 8). .

  If it is determined in step A62 that it has been set (YES), the power failure information is stored at this stage (step A64). The power outage information at this time is stored as the process storage No. “2”, assuming that the process of detecting the amount of laundry in the extra course with the reservation setting has been completed and the process has progressed to the standby time (see FIG. 9). .

  In these cases, the process storage Nos. “2” and “3” have the same storage contents as the storage that has been advanced to the water supply process, that is, even if the reservation is set, the process may proceed to the reservation standby process. In the case of resuming the operation without memorizing it and recognizing that it has advanced to the water supply stroke, the operation is immediately started from the water supply stroke without waiting.

If it is determined in step A57 that the reservation waiting time has ended (YES), the reservation setting is cleared (step A65).
2 to 5 omit the control of the strong washing course, the firm rinsing course, the blanket course, and the tank washing course.

  As described above, in the present configuration, the setting contents and progress of the operation are stored in the nonvolatile memory 52 during the operation, and when the normal operation ends or when the power switch is turned off, the nonvolatile memory 52 is detected. When the power is turned on and the previous power cut-off was not the end of the normal operation or the power switch turned off (NO in step A3), the operation of the start switch after that is non-volatile. The operation can be resumed with the stored contents from the operation progress stage stored in the memory 52 (particularly from the beginning of the progress stage process).

  As a result, when a power failure occurs during operation, the operation can be restarted with the stored contents from the operation progress stage stored in the non-volatile memory 52 by operating the start switch under the subsequent power supply recovery status. (Step A7 ′) At the time of turning off the power switch by the operating user (YES in Step A3), the operation can be restarted from the beginning by turning on the power thereafter (Step A7).

  In addition, in this configuration, when power is turned on, if the previous power cut-off is not the end of the above normal operation or the power switch is turned off, it is displayed that a power failure has occurred (step A4 ′). As a result, the user can easily and clearly know the occurrence of a power failure.

Furthermore, in the present configuration, when displaying that a power failure has occurred, the buzzer 50 is operated in a manner different from that during normal power-on (step A5 '). This also allows the user to easily and clearly know the occurrence of a power failure.
In addition, in this configuration, when a reservation is set, the non-volatile memory is not allowed to store the standby time (steps A63 and A64). As a result, when the operation is resumed by turning on the power again, the operation can be resumed immediately without waiting.

  In contrast, FIGS. 16 to 19 show second to fifth examples (second to fifth embodiments) of the present invention, and the same parts as those of the first example are the same. A description will be omitted with reference numerals, and only different parts will be described.

[Second Embodiment]
In the second embodiment shown in FIG. 16, an indication that a power failure has occurred is displayed on an existing display without using a dedicated display. Specifically, in this case, the power failure indicator 17 (exclusive indicator) is not provided, and the blanket course indicator 28 (existing indicator) and the rinsing rinse indicator 40 (existing indicator) are provided. In addition to blinking, the rinse number display 39 (existing display) flashes “2”, and the dehydration time display 42 (existing display) flashes “5” (water level indicator 32 (existing indicator). The indicator) is lit).

  This indicates that a power outage has occurred, and, as before, the setting course before the power outage is a blanket course, and the operation stops during the second water injection rinse, leaving a 5-minute dehydration time. It indicates that the water level was high. In this case, there is no need for a dedicated indicator for indicating that a power failure has occurred, and the cost can be reduced.

[Third embodiment]
In the third embodiment shown in FIG. 17, it is impossible to change the operation setting contents when displaying that a power failure has occurred.

  Specifically, in this case, as an interruption routine during power failure occurrence display, it is first determined whether or not various switches of the operation panel 14 have been operated (step B1), and not (NO). If it is determined that there is a return (return) to the main routine (YES), it is determined whether or not the power failure storage information stored in the nonvolatile memory 52 has been cleared (step B2).

  If it is determined in step B2 that it has been cleared (YES), a process that responds to the operated switch is performed (step B3). If it is determined that it has not been cleared (NO), it has been operated. It is determined whether or not the switch is a start switch 30 (step B4). If it is determined in step B4 that the start switch 30 is (YES), the process proceeds to step B3. If it is determined that the start switch 30 is not (NO), the operated switch is a child switch (in this case, For example, it is determined whether or not the reservation switch 18 and the start switch 30 are operated simultaneously (step B5).

  If it is determined in step B5 that it is a child switch (YES), the process proceeds to step B3. If it is determined that the start switch 30 is not (NO), the process returns to the main routine.

  That is, in this case, in response to the operation of the start switch 30 for resuming operation and the child switch for safety, processing corresponding to the operation is performed, but other switches for changing the operation setting contents. Thus, it is impossible to change the setting of operation when displaying that a power failure has occurred.

  When displaying that a power failure has occurred, the display on the operation panel 14 is different from the normal state (see FIGS. 14 and 16). Doing so can obscure the display and can be confusing. On the other hand, in the case of the third embodiment, the display does not change, it remains easy to understand, and there is no possibility of confusion.

[Fourth embodiment]
In the fourth embodiment shown in FIG. 18, when an operation to change the setting of operation is performed while displaying that a power failure has occurred, the display indicating that a power failure has occurred is deleted. To switch to normal display.

  More specifically, as an interruption routine during the occurrence of a power failure, it is first determined whether or not various switches (including switches for changing operation settings) of the operation panel 14 have been operated ( If it is determined that there is no (NO) in step C1), the process returns to the main routine (return). If it is determined that there is (YES), is the power failure storage information stored in the nonvolatile memory 52 cleared? It is determined whether or not (step C2).

If it is determined in step C2 that it has been cleared (YES), a process that responds to the operated switch is performed (step C3). If it is determined that it has not been cleared (NO), a power failure occurs. The display of this is erased (step C4), and the process proceeds to step C3. The process that responds to the operated switch in Step C3 includes a normal display corresponding to the switch operation, and thus changes the setting of the operation when displaying that a power failure has occurred. When an operation is performed, the display indicating that a power failure has occurred is deleted, and the display is switched to the normal display.
In this case, it is possible to eliminate the possibility of the user being confused by deleting the display of the occurrence of the power failure and switching to the normal display.

[Fifth embodiment]
In the fifth embodiment shown in FIG. 19, when the power switch is detected while displaying that a power failure has occurred, the storage in the nonvolatile memory is cleared, and then the power is turned on. I try to block it.

  Specifically, as an interruption routine during power failure occurrence display, it is first determined whether or not the power switch is turned off (operation of the power-off switch 16) (step D1) and not (NO). If it is determined, there is a return (return) to the main routine, but if it is determined (YES), it is determined whether or not the power failure storage information stored in the nonvolatile memory 52 has been cleared (step D2). .

  If it is determined in step D2 that it has been cleared (YES), the power-off process is performed (step D3). If it is determined that it has not been cleared (NO), the nonvolatile memory 52 stores it. The power failure memory information is cleared (step D4), and the process proceeds to step D3 (power cutoff processing).

  In this way, if you want to resume operation from the state before the occurrence of a power failure during the occurrence of a power failure, you can operate the start switch as described above, while normal operation during the occurrence of a power failure is displayed. When it is desired to perform the operation, it is only necessary to turn off the power switch and then turn on the power again.

In addition to the above, the setting contents and progress of driving by the non-volatile memory during driving may be stored not at every specific stroke as described above but at every specific time.
The function of displaying the occurrence of a power failure and resuming the operation from the state before the power failure may be invalidated by a specific operation such as operating the power-on switch 15 while operating the reservation switch 18, for example. In this case, when the product is shipped, the above function is enabled and disabled by a specific operation by the user.If disabled, the display will not be displayed even if the power is turned on after a power failure occurs. Normal power-on state. In addition, if the same specific operation is performed again from that state, the above function can be re-enabled. Further, it is preferable that information on whether the function is valid or invalid is stored in the non-volatile memory 52, and once set, it is not necessary to set again.

  In addition, the present invention is not limited to the embodiments described above and shown in the drawings, and can be implemented with appropriate modifications without departing from the scope of the invention.

The flowchart showing the control content at the time of power-on showing the first embodiment of the present invention Flowchart 1 showing the control details of normal operation Flowchart 2 showing the details of normal operation control Flowchart 3 showing the details of normal operation control Flowchart showing the details of normal operation control # 4 The figure which shows the process contents of the standard course and the process memory No in the progress stage The figure which shows the process contents of the special course and the process memory number in the progress stage The figure which shows the course contents of the standard course with the setting of a reservation, and the process memory No in the progress stage The figure which shows the process contents of the special course with the setting of the reservation, and the process memory No in the progress stage The figure which shows the stroke contents of the course of a tank washing course, and the stroke memory No in the progress stage The figure which shows a part of storage map of a non-volatile memory The figure which shows the memory contents which nonvolatile memory memorizes with each memory capacity according to item Broken side view showing the overall structure of the washing machine Top view of the operation panel Electrical configuration block diagram FIG. 14 equivalent diagram showing a second embodiment of the present invention. The flowchart which shows 3rd Example of this invention. The flowchart which shows 4th Example of this invention. Flowchart showing the fifth embodiment of the present invention.

  In the drawing, 16 is a power-off switch (power switch), 17 is an indicator with power failure (dedicated indicator), 18 is a reservation switch, 28 is a blanket switch (existing indicator), 30 is a start switch, and 32 is a water level. Indicator (existing indicator), 39 is a rinse count indicator (existing indicator), 40 is a water rinsing indicator (existing indicator), 42 is a dehydration time indicator (existing indicator), 43 is A control device, 44 is a power source, 50 is a buzzer, and 52 is a non-volatile memory.

Claims (1)

It is possible to detect that the power switch is off, and it has a non-volatile memory.
In the non-volatile memory, the settings and progress of the operation are stored during operation.
When the end of normal operation or when the power switch is detected to be off, the storage of the nonvolatile memory is cleared,
When the power is turned on, if the previous power cut-off was not the end of the normal operation or the power switch was turned off, it is displayed that a power failure has occurred, and the non-volatile memory is stored by the operation of the start switch thereafter. The washing machine is characterized in that the operation is resumed with the memorized contents from the advanced stage of the operation.

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