JP2016214735A - Washing machine - Google Patents

Abstract

PROBLEM TO BE SOLVED: To perform display of a detergent amount as a criterion used for washing at proper timing.SOLUTION: In a washing machine of the embodiment, a control device for executing a washing operation is constituted by including detergent amount display control means for displaying a detergent amount which becomes a criterion used for washing at a display part, before starting the washing operation. The detergent amount display control means, at normal time, performs display of the detergent amount regarding the first time set in advance, and in the case where it is detected that a lid has switched from an open state to a closed state by lid opening/closing detection means for detecting an open/closed state of the lid for opening/closing an entrance of laundry, during the time from the time at which the washing machine body is turned on to the start of the display of the detergent amount, executes only for the second time in which the display of the detergent amount is more shortened than that of the first time.SELECTED DRAWING: Figure 5

Description

  Embodiments described herein relate generally to a washing machine.

  2. Description of the Related Art In a washing machine, for example, a so-called vertical axis type fully automatic washing machine, when a start key is turned on, a washing operation (water supply process) is started before the washing operation (water supply process) is started. The laundry amount detection operation is performed. And according to the detected cloth amount, while determining a water level (water supply water amount), displaying the amount of detergent used as a standard for washing on a display part is performed (for example, refer to patent documents 1 and 2). .

  In this case, Patent Document 1 discloses the following technique. That is, after the cloth amount detection operation, the detergent amount is displayed, and the opening / closing state of the lid that opens and closes the laundry entrance / exit is detected. When the lid is in the closed state, a second predetermined time (30 seconds) is waited. Later, when the open / close state is detected again and the closed state of the lid is detected, the lid is locked in the closed state and the washing operation (water supply process) is started. On the other hand, if the lid is in an open state after the second predetermined time has elapsed, an abnormal display is performed. In addition, when the lid is open at the time when the detergent amount is displayed, if the lid is switched to the closed state within the first predetermined time (2 minutes), the lid is also locked to the closed state. When the washing operation is started and the cover is open for more than the first predetermined time, an abnormality is displayed.

  However, in the configuration of Patent Document 1, depending on the user, the second predetermined time is too short, and there is a case where there is not enough time to put the detergent according to the displayed detergent amount into the washing tank. In spite of trying to put in the detergent, an abnormality is displayed, or the lid is locked before the detergent is put in and the washing operation is started. However, if the second predetermined time is too long, the start of the washing operation (start of the washing process) may be delayed and the operation time may become longer, or the user may feel that it has failed. There is.

  Therefore, in Patent Document 2, in order to set the detergent loading time according to the user, after the detergent amount is displayed, the change from the open state of the lid to the closed state based on the detection of the lid open / close detection means. A technique is disclosed in which the time is measured and stored in a non-volatile memory, and the stored time is used as the detergent amount display time during the next operation. However, since the user does not always perform the same detergent loading operation every time, it is inevitable that a user-friendly situation occurs, for example, the detergent is not smoothly inserted and an abnormality is notified before the detergent is put in. .

Japanese Patent No. 4844590 JP 2013-22106 A

  By the way, when the amount of detergent used as a standard is displayed on the display unit as described above, for example, “0.7 cup cup” is displayed, assuming that a typical typical powder detergent is used. On the other hand, in recent years, as a detergent used for washing, in addition to a general powder detergent, a new type of detergent such as a liquid detergent and a gel ball detergent has been marketed. In addition, there are various types of appropriate use amounts such as a concentrated type and a super concentrated type.

  As the types of detergents and, as a result, diversification of charging methods, the timing at which the user inputs the detergent is not limited to the case where the detergent is measured and introduced after viewing the detergent amount display. In addition, it is diversifying, such as adding detergent at any time. For example, there may be a stage before the detergent amount is displayed, that is, before the user performs the start operation, the detergent has already been put in, or the detergent is put in during the cloth amount detection operation. Therefore, of course, it is preferable to display the amount of detergent as a guideline, but depending on the user, if the above prior art is strictly applied, the time for displaying the amount of detergent is not always appropriate, As described above, an unnecessary abnormality is displayed or the start of the washing operation is delayed.

  Therefore, a washing machine is provided that can display the amount of detergent as a guide for use in washing in an appropriate time.

  The washing machine according to the embodiment is provided in the washing machine main body and stores laundry and performs a washing operation, an entrance / exit where the laundry is taken in / out, and the entrance / exit is openable / closable A lid for closing and closing, a lid opening / closing detection means for detecting the open / closed state of the lid, an operation unit for performing various settings and instructions, a display unit for performing necessary displays, and a control device for performing a washing operation The control device includes a detergent amount display control means for displaying on the display section a detergent amount serving as a guideline for washing before starting the washing operation, and the detergent amount display control means In the normal time, the display of the amount of detergent is performed for a preset first time, and the lid opening / closing detection means between the power-on of the washing machine body and the start of display of the amount of detergent. To open the lid If the sensed've been switched to the closed state is characterized the display of the amount of detergent in place to perform only the second time was shortened than the first time.

1 is a vertical right side view schematically showing an overall configuration of a washing machine main body according to the first embodiment. A perspective view from above of the washing machine main body with the lid opened Top view of the operation panel Block diagram schematically showing the electrical configuration The flowchart which shows the process sequence which a control apparatus performs from a power supply ON to the start of a water supply process. The figure which shows the relationship between the result of cloth amount detection, the water level and the amount of detergent The flowchart which shows 2nd Embodiment and shows the process sequence which a control apparatus performs from a power supply ON to the start of a water supply process. Diagram showing the relationship between the set water level and the amount of detergent The flowchart which shows 3rd Embodiment and shows the process sequence which a control apparatus performs from a power supply ON to the start of a water supply process. The flowchart which shows 4th Embodiment and shows the process sequence which a control apparatus performs from a power supply ON to the start of a water supply process. The flowchart which shows 5th Embodiment and shows the process sequence which a control apparatus performs from a power supply ON to the start of a water supply process. The flowchart which shows 6th Embodiment and shows the process sequence which a control apparatus performs from a power supply ON to the start of a water supply process.

(1) First Embodiment Hereinafter, a first embodiment applied to a vertical automatic washing machine will be described with reference to FIGS. First, FIG. 1, FIG. 2 has shown schematically the structure of the main body 1 of the washing machine (fully automatic washing machine) which concerns on this embodiment. Here, the washing machine main body 1 is provided with an outer box 2 configured as a rectangular box as a whole from, for example, a steel plate. As shown in FIG. 1, a base plate 4 having four legs 3 is provided at the bottom of the outer box 2.

  As shown in FIG. 1, a water tub 6 for storing washing water is provided in the outer box 2 while being elastically supported (suspended) by an elastic suspension mechanism 7. As shown in part, the elastic suspension mechanism 7 has, for example, four suspension rods 7a provided at the four corners of the outer box 2, and springs 7b disposed at the lower ends of the suspension rods 7a. The known configuration is provided. A drain port 8 is formed at the bottom of the water tank 6, and a drain channel 10 having an electronically controlled drain valve 9 is connected to the drain port 8. Although not shown in detail, an air trap is provided at the bottom of the water tank 6, and a water level sensor 28 (see FIG. 4) for detecting the water level in the water tank 6 via an air tube connected to the air trap. Is provided.

  In the water tank 6, a vertical axis type rotating tank 11 as a washing tank having a substantially bottomed cylindrical shape is rotatably provided. For example, a liquid-sealed rotary balancer 12 is attached to the upper end of the rotary tank 11. Further, a dewatering hole 11 a is formed in the peripheral wall portion of the rotating tank 11. A stirring body (pulsator) 13 is disposed at the inner bottom of the rotating tank 11. A laundry (not shown) is accommodated in the rotating tub 11, and a washing operation including washing, rinsing, and dehydration processes of the laundry is performed.

  A water tank cover 14 is attached to the upper part of the water tank 6. The water tank cover 14 is provided with an opening 14a for loading and unloading laundry at a substantially central portion, and an inner lid 15 for opening and closing the opening 14a is attached. A water supply port 16 for water supply is provided at the rear portion of the upper surface of the water tank cover 14.

  A driving mechanism 17 is disposed at the lower part (outer bottom part) of the water tank 6. Although detailed illustration and description are omitted, the drive mechanism 17 includes a washing machine motor 48 (see FIG. 4) composed of an outer rotor type DC three-phase brushless motor, a hollow tank shaft 18, and a stirring penetrating through the tank shaft 18. The shaft 19 is provided with a clutch mechanism for selectively transmitting the rotational driving force of the washing machine motor 48 to the shafts 18 and 19. The rotating tank 11 is connected to the upper end of the tank shaft 18, and the stirring body 13 is connected to the upper end of the stirring shaft 19.

  The clutch mechanism operates in conjunction with the drain valve 9, and the washing tub motor 48 is driven by the stirring shaft 19 while the rotating tub 11 is fixed (stopped) during washing and rinsing (washing process). To the stirrer 13 to directly drive the stirrer 13 at a low speed. Further, at the time of dehydration (dehydration process), the driving force of the washing machine motor 48 is transmitted to the rotating tub 11 via the tub shaft 18 in a state where the tub shaft 18 and the stirring shaft 19 are connected, and the rotating tub 11 (and The stirring body 13) is directly driven to rotate in one direction at a high speed.

  As shown in FIG. 4, the washing machine motor 48 is provided with a rotation sensor 49 for detecting the rotational position of the rotor. As is well known, the rotation sensor 49 includes, for example, an 8-pole permanent magnet attached to the rotating shaft of the washing machine motor 48 and a Hall IC that detects a change in the magnetic flux. Accordingly, the rotation sensor 49 is configured to output four pulse signals by one rotation of the washing machine motor 48, for example. As will be described later, the rotation sensor 49 also functions as part of the cloth amount detection means.

  On the other hand, as shown in FIGS. 1 and 2, a synthetic resin top cover 20 having a thin hollow box shape is mounted on the outer box 2. A substantially circular laundry entrance / exit 20a is formed at the center of the top surface of the top cover 20 above the rotating tub 11, and a bi-fold type lid 21 for opening and closing the laundry entrance / exit 20a is provided. It has been. At this time, as shown only in FIG. 4, the top cover 20 is provided with a lid switch 29 as lid opening / closing detection means for detecting the opening / closing state of the lid 21. At the same time, the top cover 20 is provided with a lid lock mechanism 30 for locking (and unlocking) the lid 21 in the closed state.

  A horizontally long operation panel 22 is provided on the front side of the top surface of the top cover 20 as shown in FIG. As will be described in detail later, the operation panel 22 includes an operation unit for the user to turn on and off the washing machine body 1 and various settings / instructions, a display unit for performing necessary display, and the like. ing. As shown in FIG. 1, an electronic unit 23 including a control device 31 (see FIG. 4) described later is provided on the back side of the operation panel 22.

  A water supply mechanism 24 for supplying water into the water tank 6 is provided at the rear portion of the top cover 20. The water supply mechanism 24 includes a water supply valve 25, a water injection case 26, and a flexible water supply hose 27, and the tip of the water supply hose 27 is connected to the water supply port 16. The water supply valve 25 is provided with a water supply receiving port 25a, and the water supply receiving port 25a is connected to a tip end of a connection hose connected to a faucet (not shown). When the water supply valve 25 is opened, water supplied from the water supply is supplied into the rotary tank 11 and the water tank 6 from the water supply port 16 through the water injection case 26 and the water supply hose 27.

  Here, the operation panel 22 will be described with reference to FIG. The operation panel 22 is provided with a power-on key 32 and a power-off key 33, and a start key 34 for starting a washing operation (each process). Further, a course selection key 35 for selecting one of the courses for automatically executing the washing operation and a course display section 40 for displaying the selected (set) course are provided. Of course, “standard course” is set as a default setting, and when there is no user operation, the standard course is automatically set.

  Further, the operation panel 22 is provided with a washing key 36, a rinsing key 37, and a dewatering key 38 for manually setting each process of the washing operation, and the set time and frequency, and the remaining time during the washing operation. A washing time display unit 41, a rinse count display unit 42, and a dehydration time display unit 43 are provided to perform necessary displays such as the number of times and the number of times, respectively. A water level key 39 for manually setting the water level and a water level display unit 44 for displaying the water level are also provided. In this case, the water level (water amount) is set, for example, in six stages. As described above, the operation unit is configured by the keys 32 to 39, and the display unit is configured by the display units 40 to 46.

  In the present embodiment, the washing time display unit 41 includes a detergent amount display unit that displays the amount of detergent (how many cups of general powder detergent) is used for washing, and the remaining time during execution of the washing operation. It also serves as a remaining time display section for displaying a guide, and an error display section for informing when an error occurs. At this time, when the amount of detergent is displayed on the washing time display unit 41, the lamp of the “detergent” display unit 45 provided in the vicinity (upper part in the drawing) of the washing time display unit 41 is turned on, and the washing time display unit is displayed. When an indication of the remaining time of the washing operation is displayed on 41, the lamp of the “remaining” display portion 46 is lit. When displaying the washing time at the time of manual setting, both the “detergent” display portion 45 and the “remaining” display portion 46 are turned off. At the time of error notification, an error number such as “C23” is displayed on the washing time display unit 41.

  FIG. 4 schematically shows an electrical configuration of the washing machine body 1 with the above-described control device 31 as a center. The control device 31 is mainly configured by a microcomputer including a CPU, a ROM, a RAM, and the like, and controls the entire washing machine body 1 to execute each step of the washing operation. The control device 31 receives operation signals from the operation units (operation keys) 32 to 39 of the operation panel 22 and detection signals from the lid switch 29, the water level sensor 28, and the rotation sensor 49. Is done.

  Further, the control device 31 controls the display of each display unit 40 to 46 of the operation panel 22 and also controls the buzzer 50 for notification. Further, the control device 31 drives and controls the washing machine motor 48 via the motor drive circuit 51, and controls the water supply valve 25, the drain valve 9, and the lid lock mechanism 30 via the drive circuits 52, 53, and 54. Control each one. With the above-described configuration, the control device 31 can control each mechanism of the washing machine body 1 based on the input signal from each sensor and the control program stored in advance according to the operation course set by the user on the operation panel 22. The washing operation including the well-known washing, rinsing, and dehydration processes is automatically executed.

  At this time, the control device 31 causes the cloth amount detection operation to be executed when the start key 34 is operated in a state where any course of the automatic operation is set by the software configuration (execution of the control program). The washing water level is automatically set on the basis of the amount of cloth, and the “detergent” display unit 45 is turned on to display the amount of detergent (number of cups) as a guide for use on the washing time display unit 41. Therefore, the control device 31 displays the amount of detergent used as a guideline for washing on the washing time display unit 41 before starting the washing operation (washing process), that is, before starting the stirring (or tank rotation). It also has a function as display control means.

  As is well known, the cloth amount detection operation utilizes the fact that the rotational load of the stirrer 13 changes according to the amount of cloth, and the stirrer 13 is rotated for a predetermined short time before water supply. The rotation speed of the washing machine motor 48 at that time (the number of output pulses of the rotation sensor 49) is detected. At this time, as shown in FIG. 6, the data of the appropriate amount of supplied water and the necessary amount of detergent (in the case of a standard powder detergent) with respect to the amount of cloth (laundry weight W) are tabulated in advance and stored. ing. In this case, the amount of water supply and the amount of detergent with respect to the amount of cloth are set, for example, in six stages.

  Now, as described above, when the start key 34 is operated in a state where any course of the automatic operation is set, the control device 31 causes the cloth amount detection operation to be executed and causes the washing time display unit 41 to perform the detergent. The display of the amount (the number of cups) is executed for a predetermined time, and when the display of the predetermined time is completed, the process proceeds to the washing operation (water supply process). At this time, in the present embodiment, the control device 31 waits until the washing time display unit 41 starts displaying the detergent amount after the washing machine body 1 is powered on (the power-on key 32 is turned on). The signal of the lid switch 29 is constantly monitored. A section from the power-on of the washing machine body 1 to the start of displaying the amount of detergent is referred to as an initial section.

  As will be described later in the description of the operation (flowchart description), the control device 31 detects that the lid 21 has been switched from the open state to the closed state by the lid switch 29 within the initial section. Displays the detergent amount for a second time (for example, 8 seconds) that is shorter than a preset first time (for example, 60 seconds). In normal times, that is, when it is not detected by the lid switch 29 that the lid 21 is switched from the open state to the closed state in the initial period, the detergent amount is displayed for the first time (for example, 60 seconds). Run about.

  It should be noted that the start point of the initial section for monitoring the state of the lid 21 by the lid switch 29 is described as after the washing machine body 1 is powered on (the power-on key 32 is turned on). The process starts after waiting for the stabilization time of the lid switch 29. In other words, the initial period is actually started after a predetermined time (for example, a predetermined time of 500 msec or less) has elapsed since the power-on key 32 was turned on.

  Next, the operation of the above configuration will be described with reference to FIG. In executing the washing operation in the washing machine main body 1, for example, the user opens the lid 21, puts the laundry into the rotating tub 11, and supplies an appropriate amount of detergent until the water supply operation is started. It is necessary to put it into the inside (after closing, the lid 21 is closed). In this case, as detergents used for washing, there are liquid detergents, gel ball detergents, etc. in addition to general powder detergents, and there are various types such as concentrated types and ultra-concentrated types. Use detergent. In many cases, the user knows empirically the amount of detergent to be added.

  Specifically, the user performs an operation according to the following procedure. That is, with the lid 21 of the washing machine body 1 opened, the laundry is put into the rotating tub 11, and then set by turning on the power-on key 32 of the operation panel 22 (selecting one of the automatic courses). Etc.) and the start key 34 is turned on. At this time, if any course of automatic operation is set, the cloth amount detection operation is performed as described above, and then the detergent amount is displayed on the washing time display unit 41 for a certain period of time. Thereafter, a washing process (water supply) is started.

  At this time, in the case of general powder detergents and liquid detergents, the user can input the detergent while viewing the cloth amount detection operation and displaying the detergent amount. The user closes the lid 21 after adding the detergent. Alternatively, particularly in the case of a gel ball detergent, the user can immediately put the detergent together with the laundry before the power is turned on or immediately after the power is turned on (before the start key 34 is turned on). . In this case, the user puts the detergent in the opened state of the lid 21 (or after performing the opening operation), then closes the lid 21 and turns on the start key 34.

  Alternatively, the user may turn on the start key 34 and then apply detergent and close the lid 21 during the cloth amount detection operation (before the detergent amount display). Regardless of the timing at which the detergent is put, the user can leave the lid 21 in an open state until the detergent is put into the rotating tub 11, and then perform an operation of closing the lid 21 after the detergent is put in. It is common.

  The flowchart of FIG. 5 shows a processing procedure executed by the control device 31 from when the power-on key 32 is turned on until the water supply stroke is started. That is, first, in step S1, the display amount time (first time) of the detergent amount is set to 60 seconds, for example. In step S2, the content of the washing operation on the operation panel 22 is set. Here, it is assumed that any one of the automatic driving courses (for example, the standard course 9) is set. In step S3, it is determined whether or not the start key 34 has been turned on. Until the start key 34 is turned on (No in step S3), the setting of the content of the washing operation on the operation panel 22 is accepted in step S2.

  When the start key 34 is turned on (Yes in step S3), the cloth amount detection operation is executed in step S4, and in step S5, it is determined whether or not the cloth amount detection operation is finished. When the cloth amount detection operation is completed (Yes in step S5), the amount of water supply according to the detected amount of laundry is determined and the detergent amount serving as a guide for the washing time display unit 41 is displayed. Prior to displaying the detergent amount, in the next step S6, the lid 21 is opened by the lid switch 29 in the initial period, that is, between the time when the power-on key 32 is turned on and the present time (the detergent amount is displayed). It is determined whether it has been detected that the state has been switched to the closed state.

  Here, in the initial section, when it is not detected that the lid 21 has been switched from the open state to the closed state (No in step S6), it remains (the detergent amount is displayed for 60 seconds). Proceed to step S8. On the other hand, when the lid 21 is switched from the open state to the closed state in the initial section (Yes in step S6), as described above, the user determines that the detergent has already been put in. In step S7, the detergent amount display time is set to the second time (for example, 8 seconds), and the process proceeds to step S8.

  In step S <b> 8, the amount of detergent that is an indication of use corresponding to the amount of laundry is displayed on the washing time display unit 41. In step S9, it is determined whether or not the display time has elapsed, and the detergent amount is continuously displayed for 60 seconds or 8 seconds until the display time ends. When the display time of the detergent amount ends (Yes in step S9). In step S10, the display of the washing time display unit 41 is switched to the display of the remaining time of the washing operation (for example, “30 minutes”), and the water supply process is started.

  At this time, as described above, when the lid 21 is switched from the open state to the closed state in the initial section, it is sufficient that the detergent has already been put into the rotating tank 11 by the user before the detergent amount is displayed. It can be judged with certainty. In this way, when it is determined that the detergent has already been put in before the detergent amount is displayed, the detergent amount is displayed for a short time (second time: 8 seconds), and the water supply process starts immediately. Will come to be.

  Here, for example, when using a gel ball detergent, when the user has decided to put the detergent first, the lid 21 is already closed before the start key 34 is turned on. The detergent amount after the detection of the amount of cloth can be displayed in a short time, and the washing operation can be started promptly. Further, even if the user does not determine in advance and the start key 34 is turned on first, if the cloth amount detecting operation is being performed, the detergent 21 is closed and the lid 21 is closed. In addition, the detergent amount after the detection of the amount of cloth can be displayed in a short time, and the washing operation can be started promptly.

  On the other hand, when the lid 21 is not switched from the open state to the closed state in the initial section (it remains closed throughout the section or is in the open state at the end of the initial section), the detergent is sufficiently reliable. It can be determined that it has not been put in yet. At this time, the amount of detergent is displayed for a sufficient time (first time: 60 seconds), and then the washing process is started. The user confirms the amount of detergent by looking at the display and measures the amount of detergent. It is possible to carry out the operation such as performing the above operation and putting it into the rotary tank 11 and closing the lid 21 at the usual pace.

  As described above, according to the present embodiment, whether or not the user has put the detergent before the display is determined by detecting whether or not the lid 21 is switched from the open state to the closed state by the lid switch 29 in the initial section. Based on this, the display time of the detergent amount is controlled. Thereby, it is possible to obtain an excellent effect that the display can be performed in an appropriate time while displaying the amount of detergent as a guide for use in washing. As a result, it is possible to prevent problems such as the conventional display of unnecessary abnormalities and the delay in starting the washing operation.

  In particular, in the present embodiment, the cloth amount detection operation for detecting the amount of laundry is executed, and based on the result, an appropriate water supply level (water amount) according to the cloth amount can be set and washing is executed. It is possible to display an appropriate amount of detergent according to the water level (water amount) to be performed. In addition, since the initial period is configured to start after a predetermined time has elapsed since the washing machine body 1 is turned on (the power-on key 32 is turned on), the detection signal of the lid switch 29 is stable and the lid 21 It is possible to reliably detect the open / closed state.

(2) Second Embodiment Next, a second embodiment will be described with reference to FIGS. Note that each embodiment described below is also applied to a vertical-axis type washing machine having the same mechanical configuration as that of the first embodiment. Accordingly, the same parts as those in the first embodiment are denoted by the same reference numerals, and new illustrations and detailed descriptions are omitted. Hereinafter, different points will be mainly described.

  This second embodiment is different from the first embodiment in that the setting of the amount of detergent used as a standard for washing is not performed based on the result of the cloth amount detection operation, but the water tank 6 (rotation It is in the point which comprised so that it might set according to the setting water level (water quantity) supplied in the tank 11). That is, in the present embodiment, the user can manually set the washing water level (water amount) in any one of six levels by using the water level key 39 (see FIG. 3) of the operation panel 22 as described above. As shown in FIG. 8, the control device 31 stores data of a necessary amount of detergent (in the case of a standard powder detergent) as a guide according to the set water level (set water amount) in a table. .

  In the present embodiment, when the start key 34 is operated with the water level set on the operation panel 22, the control device 31 displays the amount of detergent (the number of cups) on the washing time display unit 41 based on the above data. The display is executed for a predetermined time, and the process proceeds to the washing operation (water supply process). At this time, the control device 31 causes the lid 21 to be opened from the open state within the initial period from when the power-on key 32 is turned on until the washing time display unit 41 starts displaying the detergent amount. When it is detected that the switch has been switched to the closed state, the detergent amount is displayed only for a second time (for example, 8 seconds) that is shorter than a preset first time (for example, 60 seconds). .

  The flowchart in FIG. 7 shows a processing procedure executed by the control device 31 from when the power-on key 32 is turned on until the water supply stroke is started. That is, first, in step S1, the display amount time (first time) of the detergent amount is set to 60 seconds, for example. In the next step S11, the content of the washing operation on the operation panel 22 by the user is set, and the setting includes the setting of the water supply water level.

  When the start key 34 is turned on after the setting operation (Yes in step S3), the detergent amount serving as a guide according to the set water level is displayed on the washing time display unit 41 (step S8). However, before displaying the detergent amount, in step S6, the lid switch 29 is used to close the lid within the initial section, that is, until the detergent amount is displayed after the power-on key 32 is turned on (current time). It is determined whether or not it has been detected that 21 has been switched from the open state to the closed state.

  Here, if it is not detected that the lid 21 is switched from the open state to the closed state in the initial section (No in step S6), the process proceeds to steps S8 and S9 as it is, and the detergent amount is displayed. , For the first time (60 seconds). On the other hand, when the lid 21 is switched from the open state to the closed state in the initial section (Yes in step S6), the display time of the detergent amount is the second time (for example, 8 seconds) in step S7. ) And the amount of detergent is displayed for 8 seconds in steps S8 and S9. Thereafter, in step S10, the display of the washing time display unit 41 is switched to the display of the remaining time of the washing operation, and the water supply process is started.

  Also in the second embodiment, as in the first embodiment, the user can detect whether the lid 21 has been switched from the open state to the closed state by the lid switch 29 in the initial section. Since it is configured to determine whether the detergent has been put in and to control the display time of the detergent amount based on it, the display of the detergent amount as a guide for use in washing is performed at an appropriate time. The excellent effect that it can be performed can be obtained. Moreover, since the detergent amount used as a standard is set according to the water supply water level (water amount), it is possible to display an appropriate amount of detergent according to the water level (water amount) at which washing is performed.

(3) Third Embodiment FIG. 9 shows a third embodiment. The processing procedure executed by the control device 31 after the power-on key 32 is turned on until the water supply stroke is started. It is a flowchart which shows. The third embodiment is different from the first embodiment (FIG. 5) in that the control device 31 opens the lid 21 by the lid switch 29 while the detergent amount is displayed on the washing time display unit 41. This is in the point that the shortening of the display time of the amount of detergent is stopped when the detection is detected.

  Here, “stopping shortening” directly means that when the detergent amount display time is set (shortened) to the second time (8 seconds), the detergent amount display time is the first time. The display time is set to the first time (60 seconds), or the total time is longer than the first time (60 seconds), but the display time is set to the first time (60 seconds). This includes the case of further extension as a total. In the present embodiment, the display for the third time is continued (limited to one time) from the time when the open state of the lid 21 is detected. Specifically, as the third time, The same 60 seconds as the first time is adopted.

  That is, in FIG. 9, from the step S1 to the display of the detergent amount in step S8, processing equivalent to that in the first embodiment (flowchart in FIG. 5) is executed. Then, during the display of the detergent amount, whether or not the lid 21 is opened is monitored by the lid switch 29 in step S21. If the lid 21 is not opened (No in Step S21), when the set time (60 seconds or 8 seconds) has elapsed (Yes in Step S9), the remaining time of the washing operation is displayed in Step S10. And the water supply process is started.

  On the other hand, when the open state of the lid 21 is detected by the lid switch 29 during the display of the detergent amount (Yes in step S21), the display time of the detergent amount from that point in step S22 is It is reset to the third time (60 seconds) and the display is continued. However, the resetting of the display time is performed only once. Therefore, even when the display time of the detergent amount is set to 60 seconds or 8 seconds, when the open state of the lid 21 is detected by the lid switch 29 during the display of the detergent amount, another 60 from that point. The amount of detergent is displayed for 2 seconds.

  According to the third embodiment, as in the first embodiment, the display can be performed at an appropriate time while displaying the amount of detergent as a guide used for washing. . And in this embodiment, when the open state of the lid | cover 21 is detected during the display of the detergent amount to the washing time display part 41, the user open | released in order to throw in (or add in) a detergent. Since it can be determined that the amount of detergent is not displayed (by resetting the display time to the third time), it is possible to secure time for charging the detergent. It is possible to facilitate the operation of adding (adding) the detergent.

(4) Fourth Embodiment FIG. 10 shows a fourth embodiment. The processing procedure executed by the control device 31 after the power-on key 32 is turned on until the water supply stroke is started. It is a flowchart which shows. The fourth embodiment differs from the third embodiment (FIG. 9) in that the control device 31 uses the lid switch 29 to close the lid 21 when the display of the amount of detergent on the washing time display unit 41 ends. When the open state is detected, abnormality notification is performed. The abnormality notification is performed by displaying an error number on the washing time display unit 41 and sounding the buzzer 50. Accordingly, the abnormality notification means is configured by the control device 31, the washing time display unit 41, the buzzer 50, and the like.

  That is, in FIG. 10, after the detergent amount display time is reset to the third time (60 seconds) in step S22, whether or not the lid 21 is closed by the lid switch 29 in step S31. To be judged. When the lid 21 is closed by the user (Yes in step S31), the process returns to step S9 and the display is continued. On the other hand, if the lid 21 remains open (No in step S31), it is determined in step S32 whether the third time (60 seconds) has elapsed, and 60 seconds have elapsed. If not (No in step S32), the processing from step S31 is repeated. If 60 seconds have elapsed (Yes in step S32), a lid open abnormality notification is made in step S33.

  According to the fourth embodiment, in addition to obtaining the same functions and effects as those of the third embodiment, the abnormality notification means is provided, so that the laundry can be washed while the lid 21 is open. Starting operation is prevented in advance. Therefore, it is possible to prevent the user from forgetting to close the lid 21 after the detergent is added (additional charging) by the user while the detergent amount is displayed on the washing time display unit 41, and thus the safety can be improved.

(5) Fifth Embodiment FIG. 11 shows a fifth embodiment. The processing procedure executed by the control device 31 after the power-on key 32 is turned on until the water supply stroke is started. It is a flowchart which shows. The fifth embodiment is different from the fourth embodiment in that the control device 31 allows the lid 21 to be closed from the open state to the closed state by the lid switch 29 while the detergent amount is displayed on the washing time display unit 41. Is detected, the display of the detergent amount is terminated at that time, and the subsequent washing operation is executed.

  That is, in FIG. 11, after the detergent amount display time is reset to the third time (60 seconds) in step S22, the lid 21 is closed by the lid switch 29 in the next step S41. Is determined. When the lid 21 is closed by the user (Yes in step S41), the process proceeds to step S10 as it is, and the display of the washing time display unit 41 is switched from the display of the detergent amount to the display of the remaining time of the washing operation. The process starts.

  According to this, while the detergent amount is displayed on the washing time display unit 41, the fact that the lid 21 is switched from the open state to the closed state means that the user opens the lid 21 and throws in the detergent for the detergent. Then, it can be determined that a series of operations of closing the lid 21 has been performed. Therefore, according to the fifth embodiment, in addition to obtaining the same operation and effect as the fourth embodiment, when detecting that the lid 21 is closed as described above, By immediately ending the display of the detergent amount and starting the washing operation, the washing operation can be started quickly, and unnecessary display time can be eliminated.

(6) Sixth Embodiment and Other Embodiments FIG. 12 shows a sixth embodiment. The controller 31 starts from when the power-on key 32 is turned on until the water supply stroke starts. It is a flowchart which shows the process sequence which is performed. The sixth embodiment is different from the fifth embodiment in that the control device 31 operates the lid lock mechanism 30 after the display of the amount of detergent on the washing time display unit 41 is finished, and the lid 21. Is locked in the closed state, and the subsequent washing operation is executed. That is, as shown in FIG. 12, when the display of the detergent amount is finished in step S10 and the display of the washing time display unit 41 is switched to the display of the remaining time of the washing operation, the lid is closed in the next step S51. After the lid 21 is locked in the closed state by the lock mechanism 30, the water supply stroke is started.

  According to such a sixth embodiment, in addition to obtaining the same operation and effect as the fifth embodiment, the lid lock mechanism 30 is operated after the display of the detergent amount is completed. This prevents the user from opening the lid 21 and putting his hand into the rotating part while the rotating tub 11 is rotating during the subsequent washing operation, thus improving safety. Can do.

  In addition, although detailed description is abbreviate | omitted, it is also possible to implement the characteristic part in each embodiment mentioned above in combination with another embodiment. For example, in the first embodiment or the second embodiment, it is configured to perform error notification as in the fourth embodiment, or immediately after the closure of the lid 21 is detected as in the fifth embodiment. It may be configured to start the washing operation, or may be configured to operate the lock mechanism 30 after the display of the detergent amount is completed as in the sixth embodiment.

  In each of the above-described embodiments, the first time is 60 seconds and the second time is 8 seconds. However, these may be set as appropriate. The third time is not limited to the same as the first time, but can be longer or shorter than that. It is also possible to variably configure these first to third times. In addition, the hardware configuration of the washing machine can be variously modified and can be applied to a so-called drum type (horizontal shaft type) washing machine as appropriate without departing from the scope of the invention. It can be implemented.

  In the drawings, 1 is a washing machine body, 6 is a water tub, 11 is a rotating tub (washing tub), 20a is an entrance / exit, 21 is a lid, 22 is an operation panel, 29 is a lid switch (lid open / close detection means), and 30 is a lid lock. Mechanism 31 is a control device (detergent display control means, abnormality notification means), 32 is a power-on key, 34 is a start key, 41 is a washing time display section (display section), and 50 is a buzzer.

Claims (5)

A washing tub provided in the washing machine main body in which the laundry is stored and the washing operation is performed;
An entrance where the laundry is taken in and out of the washing tub;
A lid that opens and closes the doorway;
Lid opening / closing detection means for detecting the opening / closing state of the lid;
An operation unit for performing various settings and instructions,
A display unit for performing necessary display; and
A control device for executing the washing operation,
The control device is configured to include a detergent amount display control means for displaying on the display unit a detergent amount serving as a guide for use in washing before starting a washing operation,
The detergent amount display control means normally performs the display of the detergent amount for a preset first time, and after the power of the washing machine body is turned on until the display of the detergent amount is started. In addition, when the lid opening / closing detection means detects that the lid has been switched from the open state to the closed state, the display of the detergent amount is executed for a second time shorter than the first time. A washing machine characterized by   The detergent amount display control means stops shortening the display time of the detergent amount when the open state of the lid is detected by the lid opening / closing detection means while the detergent amount is displayed on the display unit. The washing machine according to claim 1.   When the display of the amount of detergent on the display unit by the detergent amount display control unit is completed, an abnormality notification unit that performs abnormality notification when the open state of the lid is detected by the lid opening / closing detection unit is provided. The washing machine according to claim 1 or 2, characterized by the above.   When the detergent amount display control means detects that the lid has been switched from the open state to the closed state by the lid opening / closing detection means during the display of the detergent amount on the display unit, the display unit The washing machine according to any one of claims 1 to 3, wherein the display of the amount of detergent is terminated and the control device executes a subsequent washing operation. A lid locking mechanism for locking the lid in a closed state;
The control device operates the lid lock mechanism after the display of the detergent amount on the display unit by the detergent amount display control means, and executes the subsequent washing operation. The washing machine according to any one of 4.

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