JP2019069068A - Dish washer and home appliance front door control method - Google Patents

Abstract

To provide a dishwasher having an easy-to-use user interface, and achieve an easy-to-use user interface on a home appliance front door.SOLUTION: A built-in type dishwasher accommodated in a kitchen counter includes a washing tank in which objects to be washed are accommodated, a front door provided on a front side of the washing tank, which has an appearance similar to the appearance of other structures in the kitchen counter, a door opening unit that drives the washing tank in a front direction of the dishwasher and opens the front door, a door opening switch provided to the front door for opening the front door, and control means. When the door opening switch is touched in a state that the front door is closed, the control means notifies that the door opening switch is touched. After notifying that the front door is opened, the control means drives the door opening unit, moves the washing tank in the front direction, and opens the front door.SELECTED DRAWING: Figure 12

Description

  The present invention relates to a dishwasher and a built-in kitchen counter, and to a control method of a front door of a home appliance.

  Conventionally, there has been proposed a dishwasher and a dryer built-in under a kitchen counter that constitutes a system kitchen. Such a built-in type dishwasher is required to have a built-in state and a feeling of unity with the surrounding system kitchen construction so that a beautiful appearance can be obtained as a whole system kitchen. Therefore, it has been practiced to use the same material, the same color, and the same pattern as the facing of the surface of the other constructions of the system kitchen as the facing of the front of the dishwasher. Moreover, in the dishwashing dryer described in Patent Document 1, the exhaust port is provided along the outside of the upper end surface of the decorative panel behind the front surface of the decorative panel. With this configuration, a cosmetic panel having the same design as the door and drawer of the system kitchen can be mounted on all the fronts of the dishwasher.

JP, 2015-146937, A

  However, in the dish washer / dryer described in Patent Document 1, a handle for pulling out the washing tank, that is, a handle is provided so as to project to the front. Therefore, even when trying to realize a design that is flush with other constructions of the system kitchen, it has not been possible to realize the unity of the kitchen with the same surface material.

  On the other hand, it is conceivable to provide a panel switch on the front instead of the handle projecting on the front as described above from the viewpoint of the sense of unity of the kitchen in design. That is, when the user touches the panel switch with a finger or the like, it is conceivable to configure the front surface of the dish washer / dryer so that the cleaning tank is pulled out to the front side. However, when the panel switch is provided, the user does not pull the cleaning tank forward with the finger or hand touching the panel switch, so the cleaning tank can not be prepared for the forward movement of the cleaning tank. It may come out to the front. In addition, the panel switch may be touched unintentionally, and the cleaning tank may come out to the front unexpectedly. In these cases, there is a possibility that the washing tank may collide with the user's finger and hand. In particular, if the washing tank is loaded with a large amount of dishes and the heavy washing tank collides with the user's finger and hand, the user may be injured.

  The present invention has been made against the background of the problems as described above, and it is an object of the present invention to provide a dishwasher with a user interface that is easy to use, and a household electrical appliance that realizes a user interface that is easy to use. The purpose is to provide a control method of the front door of

  The dish washer / dryer according to the present invention is a built-in type dish washer / dryer housed in a kitchen counter, and includes a washing tank in which an object to be washed is housed, and a front door provided on the front side of the washing tank. A door opening unit for driving the washing tank forward of the dishwasher and opening the front door; a door opening switch provided on the front door for opening the front door; notification means; Control means, the control means detecting that the door open switch is touched when the front door is closed, that the door open switch is touched, and the front door is opened After the notification means is notified that it is done, the door opening unit is driven to move the cleaning tank forward to open the front door.

  A control method of a front door of a home appliance according to the present invention is a control method of a front door provided on the front side of a home appliance, wherein the home appliance is a door opening unit for opening the front door, and the front surface The door opening switch is provided on a door and includes a door opening switch for opening the front door, and the door opening switch is operated when it is detected that the door opening switch is touched in a state where the front door is closed. In the first notification step for notifying that it is touched, the second notification step for notifying that the front door is opened after the execution of the first notification step, and the second notification step And, after execution, opening the front door.

  According to the present invention, the front door is configured to be prevented from unexpectedly colliding with the hand or finger after the user touches the door open switch. Thus, it is possible to obtain a dishwasher with a user-friendly user interface. In addition, in the control method of the front door provided on the front side of the home appliance, a user interface that is easy to use can be realized.

It is a front view of the dish washer / dryer according to the embodiment of the present invention. It is the perspective view seen from the back upper part of the dishwasher according to the embodiment of the present invention. It is a front view of the dish washer / dryer according to the embodiment of the present invention. It is a side view of the dish washer / dryer according to the embodiment of the present invention. It is a top view of the door open unit of the dish washer-dryer which concerns on embodiment of this invention. It is a figure which shows a process of operation | movement of the door opening unit of the dish-washing dryer based on embodiment of this invention from a side. It is a figure which shows a process of operation | movement of the door opening unit of the dish-washing dryer based on embodiment of this invention from a side. It is a figure which shows a process of operation | movement of the door opening unit of the dish-washing dryer based on embodiment of this invention from a side. It is a perspective view of the ventilation unit of the dish-washing dryer based on embodiment of this invention. It is a figure which shows the structure of a door open switch notionally. It is a block diagram of the dish-washing dryer which concerns on embodiment of this invention. It is a flowchart which shows the control method of door opening which concerns on embodiment of this invention.

  Hereinafter, a preferred embodiment of the dish washer / dryer of the present invention will be described with reference to the drawings. The present invention is not limited by the embodiments described below. Further, the sizes and shapes of the respective constituent members in the drawings are simply illustrated for the sake of explanation, and may differ from the actual sizes and shapes.

Embodiment.
FIG. 1 is a front view of a dish washer / dryer according to an embodiment of the present invention. FIG. 1 shows a state in which the dishwasher 100 is built into the kitchen counter 200. The dishwasher 100 is a built-in type housed in a housing (not shown) provided in the kitchen counter 200. A front door 10 provided on the front surface of the dishwasher 100 includes a front operation unit 11, a decorative material 12, and a decorative material 13. The front door 10 is provided on the front side of a cleaning tank described later. The front operation unit 11 is an elongated member extending in the left-right direction of the dishwasher 100. The front operation unit 11 is provided at the same height as the boundary position of the construction of the kitchen counter 200 in the vertical direction. The position of the front operation unit 11 is determined as a standard position in the configuration of the design surface of the kitchen, and is connected to a line on which the lower ends of devices such as gas stoves and IH cooking heaters installed side by side are located. The front operation unit 11 is provided with a door opening switch 20 and an exhaust port 30. The door open switch 20 is a switch for opening the front door 10. The decorative surface material 12 attached to the upper side of the front operation unit 11 and the decorative surface material 13 attached to the lower side of the front operation unit 11 are the same as the decorative surface material that is the surface material of the adjacent construction in the kitchen counter 200 Material, the same color, and the same pattern. That is, the decorative surface material 12 and the decorative surface material 13 have the same appearance as the surface material of the construction of the kitchen counter 200. By configuring the front door 10 as described above, when the dishwasher 100 is built into the kitchen counter 200, a sense of unity with the surroundings can be obtained, and a beautiful appearance can be obtained.

  FIG. 2 is a perspective view from the upper rear of the dishwasher according to the embodiment of the present invention. FIG. 3 is a front view of the dish washer / dryer according to the embodiment of the present invention. FIG. 4 is a side view of the dish washer / dryer according to the embodiment of the present invention. 2 to 4 show a state in which the facing material 12 and the facing material 13 described above are not attached to the dish washer / dryer 100. FIG. 2 shows the dishwasher 100 from the back side. In FIG. 4, the left side of the paper surface is the front side of the dishwasher 100, and the right side of the paper surface is the back side of the dishwasher 100. The dishwasher 100 includes a housing and a washing tank 2 which are not shown. The housing is a member that has a front opening that is open at the front and is an outer shell of the dishwasher 100. A tableware basket 4 is accommodated in the cleaning tank 2, and the tableware to be cleaned is placed on the tableware basket 4. In FIG. 3, the cleaning tank 2 is supported via the rail member 60 so as to be able to be pulled out to the front side of the housing and to be pushed to the rear side.

  An exhaust duct 31 and a control board 3 are provided on the front surface of the cleaning tank 2 at positions indicated by dotted lines in FIGS. 3 and 4. The control board 3 has a microcomputer described later mounted thereon. The exhaust duct 31 communicates with the exhaust port 30 of the front operation unit 11.

  On the bottom surface of the cleaning tank 2, a door opening unit 40, a cleaning pump (not shown), and a heater (not shown) are provided. The heater is for heating the washing water for washing the dishes stored in the tableware basket 4 of the washing tank 2. The washing pump circulates washing water for washing dishes. The door opening unit 40 is a unit that drives the cleaning tank 2 in the forward direction.

  FIG. 5 is a plan view of the door opening unit of the dishwasher according to the embodiment of the present invention. FIG.6, FIG.7 and FIG. 8 is a side view showing one process of operation of the door open unit of the dishwasher according to the embodiment of the present invention. Here, the configuration and operation of the door opening unit 40 will be described using FIGS. 5 to 8. As shown in FIG. 5, the door opening unit 40 includes a drive motor 41, a pinion gear 42, a slide shaft 43, and a main body 44. The slide shaft 43 is held by the main body 44. In the door opening unit 40, the pinion gear 42 is engaged with the rack portion 43a formed on the slide shaft 43, and the rotation of the drive motor 41 is transmitted to the slide shaft 43 through the pinion gear 42. There is. That is, by controlling the amount and direction of rotation of the drive motor 41, the slide shaft 43 can be moved in the forward direction of the housing 1 described above. In response to the movement of the slide shaft 43, the cleaning tank 2 moves in the forward direction, and the front door 10 is opened.

  As shown in FIG. 6, when the drive motor 41 is driven to rotate the pinion gear 42 in the direction of arrow A, the slide shaft 43 tends to protrude in the right direction in FIG. In the following description, movement to the right may be referred to as forward movement. At this time, the main body 44 holding the slide shaft 43 is attached to the washing tank 2, and the tip end of the slide shaft 43 is in contact with the rear wall of the case 1 of the dishwasher 100. Accordingly, as the pinion gear 42 rotates, the slide shaft 43 protrudes from the main body 44 and presses the rear wall of the housing 1. When the slide shaft 43 presses the rear wall of the housing 1, the cleaning tank 2 to which the main body 44 is attached is pushed forward from the opening of the housing 1. At this time, the cleaning tank 2 is locked to the housing 1 by a latch (not shown). Therefore, the slide shaft 43 applies a force between the housing 1 and the cleaning tank 2 so as to unlock the latch and push the cleaning tank 2. The drive motor 41 rotates the pinion gear 42 to move the slide shaft 43 forward.

  When the cleaning tank 2 is pushed forward from the opening of the housing 1, next, as shown in FIG. 7, the drive motor 41 is driven to rotate the pinion gear 42 in the direction of the arrow B. That is, the drive motor 41 is rotated in the direction opposite to the rotational direction shown in FIG. 6, and the slide shaft 43 is pulled back in the left direction in FIG. In the following description, the movement in the left direction may be referred to as backward movement. At this time, the tip of the slide shaft 43 moves in a direction away from the rear wall of the housing 1. Then, as shown in FIG. 8, the slide shaft 43 is accommodated in the main body 44 in accordance with the reverse rotation of the pinion gear 42. The drive motor 41 reversely rotates the pinion gear 42 to retract the slide shaft 43.

  As compared with the time of pulling back the slide shaft 43, when the slide shaft 43 is protruded and the cleaning tank 2 is pushed out, the load on the door opening unit 40 becomes large. When pushing out the washing tank 2, the door opening unit 40 needs to apply a force between the housing 1 and the washing tank 2 so as to unlock the above-mentioned latch and push the washing tank 2 out. It is because there is. In contrast, when the slide shaft 43 is pulled back, the door opening unit 40 only moves the slide shaft 43 in a direction away from the rear wall of the housing 1. Therefore, for example, when the same drive voltage is input to the drive motor 41, the number of rotations of the drive motor 41 is increased when the slide shaft 43 is pulled in, compared with when the slide shaft 43 is protruded. The sound of 41 becomes louder. Therefore, in the present embodiment, the input to the drive motor 41 is performed so as to pull back the slide shaft 43 at a speed equal to or less than the speed at which the slide shaft 43 is pushed.

  For example, when the slide shaft 43 is pushed out and pulled back at the same speed, the operation noise of the drive motor 41 is the same when pushing out and pulling back the slide shaft 43. In this case, the number of rotations of the drive motor 41 is equal. Therefore, the user who uses the dish washer / dryer 100 does not feel discomfort due to the change of the operation noise of the drive motor 41.

  When the slide shaft 43 is pulled in at a slower speed than when the slide shaft 43 is pushed out, when the slide shaft 43 is drawn in, the operation noise of the drive motor 41 is reduced. Therefore, the quietness of the dishwasher 100 is improved.

  As described above, in the present embodiment, the door cleaning unit 2 is configured to automatically push forward the heavy cleaning tank 2 in which the dishes and the like are stored from the opening of the housing 1. Therefore, in this embodiment, it is possible to obtain a user-friendly dishwasher that does not require a large force to draw out the cleaning tank 2.

  The door opening unit 40 may be additionally provided with a function of driving the cleaning tank 2 in the backward direction. For example, the slide shaft 43 may be driven in the rear direction of the housing 1 to move the cleaning tank 2 in the rear direction, and the front door 10 may be closed. In addition, magnets are provided on the side of the washing tank 2 and on the side of the housing 1 on the rear side of the washing tank 2, and when the washing tank 2 is pushed into the dishwasher 100 for storage, the attraction properties of both magnets are used. The washing tank 2 may be configured to be drawn into the dishwasher 100.

  As shown in FIG. 2, a duct 5 is provided on the back of the cleaning tank 2. A blower unit is attached to the duct 5. FIG. 9 is a perspective view of a blower unit of the dish washer / dryer according to the embodiment of the present invention. The blower unit 50 has a blower fan 51, a drying heater 52, and a blower duct 53. The blower fan 51 is assembled to the blower duct 53 and attached to the duct 5 of FIG. The air sent to the duct 5 through the air duct 53 is heated by the drying heater 52 to become warm air, and is sent into the cleaning tank 2 through the air duct 53 and the duct 5 by the air blowing fan 51. 2 shows a state in which the blower unit 50 is removed, and FIG. 4 shows a state in which the blower unit 50 is attached.

  Referring again to FIG. 2, the upper end portion of the front surface of the cleaning tank 2 is provided with a top operation panel 70. The upper operation panel 70 has an operation unit for setting various operations of the dishwasher 100, and a display unit for notifying of the state of the dishwasher 100. The operation unit and the display unit of the upper operation panel 70 will be described later. The upper operation panel 70 is disposed facing upward at the front end of the cleaning tank 2. The top operation panel 70 is hidden in the kitchen counter 200 when the front door 10 is closed, that is, when the washing tank 2 is accommodated in the kitchen counter 200, and the washing tank 2 is pulled out to the front, and the front door 10 is closed. Exposed when opened.

  As shown in FIGS. 3 and 4, the cleaning tank 2 has a facing attachment portion 14 above the front operation portion 11 on the front surface, and a facing attachment portion 15 below the front operation portion 11. There is. The above-mentioned makeup material 12 is attached to the face material attaching portion 14 above the front operation portion 11, and the above-mentioned makeup material 13 is attached to the face material attaching portion 15 below the front operation portion 11.

  FIG. 10 is a diagram conceptually showing the structure of the door opening switch. The door open switch 20 is a contact-type touch switch whose capacitance changes when the user touches it with a finger or the like. The door opening switch 20 has a touch switch portion 21, a rubber electrode portion 22, and four electrode patterns 23, 24, 25 and 26 formed of copper foil on the control substrate 3. The control board 3 is a control board provided on the front surface of the cleaning tank 2 described above.

  The touch switch unit 21 is a rectangular parallelepiped whose outer surface protrudes forward and a box-like member whose rear surface side is recessed, and is made of, for example, resin. The touch switch portion 21 has flange portions 21a formed on the left and right of the rear end, and holes 21b are formed in the flange portions 21a. The touch switch portion 21 is fixed to the hole portion 21 b through a screw so that the flange portion 21 a is flush with the surface material attaching portion 14. The depth in the front-rear direction of the touch switch unit 21 is set to be the same as or slightly thicker than the thickness of the facing material 12, so the user can view the front of the touch switch unit 21 from the front side of the dishwasher 100. I can touch it. The rubber electrode portion 22 is a rectangular solid member and has a plurality of rubber electrodes 221 shown in black in FIG. The plurality of rubber electrodes 221 are arranged in a line along the longitudinal direction of the touch switch portion 21. Each rubber electrode 221 is a conductor extending from the front end to the rear end, and the periphery thereof is insulated by rubber. The touch switch unit 21 and the rubber electrode unit 22 are arranged such that the longitudinal direction extends along the lateral direction of the dishwasher 100. The front portion of the rubber electrode portion 22 is accommodated in a recess on the rear surface side of the touch switch portion 21, and the front surfaces of the plurality of rubber electrodes 221 are disposed in contact with or in proximity to the bottom surface of the recess of the touch switch portion 21. The rear ends of the plurality of rubber electrodes 221 and the resist applied to the surfaces of the electrode patterns 23, 24, 25 and 26 of the control substrate 3 are disposed in contact with each other. That is, the touch switch portion 21 and the electrode patterns 23, 24, 25 and 26 of the control substrate 3 are capacitively coupled via the plurality of rubber electrodes 221. Therefore, the change in capacitance generated when the user touches the touch switch unit 21 with a finger or the like is transmitted to the electrode patterns 23, 24, 25 and 26 by the plurality of rubber electrodes 221, and is touched. It is detected.

  In addition to the example composed of a plurality of rubber electrodes 221 shown in black in FIG. 10, between the touch switch portion 21 and the electrode patterns 23, 24, 25 and 26 of the control substrate 3 using a conductive member It may be configured and capacitively coupled.

  In the present embodiment, when a change in capacitance is transmitted to a half or more of the four electrode patterns 23, 24, 25, and 26, it is determined that the touch switch unit 21 is touched. Therefore, when the front door 10 is opened, it is not necessary to simultaneously touch the entire area of the touch switch unit 21. By touching a part of the touch switch unit 21 with a finger, it is recognized that the touch switch unit 21 is touched. Be done. In the present embodiment, an example of four electrode patterns is shown, but it is obvious that the same effect can be obtained with two or more electrodes.

  FIG. 11 is a block diagram of the dish washer / dryer according to the embodiment of the present invention. The microcomputer 101 has a CPU (central processing unit), various memories, a timer, and the like, and controls the dishwashing and drying machine 100 as a whole. The microcomputer 101 is a control means of the present invention. The heater 80 and the cleaning pump 90 are a heater and a cleaning pump provided on the bottom surface of the cleaning tank 2 described above. A signal indicating that the touch switch unit 21 is touched is input from the door open switch 20 to the microcomputer 101, and the microcomputer 101 detects that the touch switch unit 21 is touched. Then, the microcomputer 101 moves the cleaning tank 2 in the forward direction, and generates a control signal instructing to open the front door 10. Then, when this control signal is output to the door opening unit 40, the drive motor 41 described above rotates in the direction to move the cleaning tank 2 in the forward direction, and the front door 10 is opened. The influence of noise can be reduced by disposing the touch switch unit 21 near the touch switch unit 21 using a dedicated IC for detecting that the touch switch unit 21 is touched. After that, the same effect can be obtained by transmitting the detection result as to whether or not the touch is made to the microcomputer 101 as a communication signal.

  The operation unit 71 is an operation unit of the top operation panel 70 described above, and the display unit 72 is a display unit of the top operation panel 70. When the operation unit 71 is operated by the user, a signal corresponding to the operation is input to the microcomputer 101. The microcomputer 101 generates control signals for the heater 80, the cleaning pump 90, the blower fan 51, and the drying heater 52 based on an input signal from the operation unit 71. These control signals are output to the heater drive circuit 81, the cleaning pump drive circuit 91, the blower fan drive circuit 54, and the drying heater drive circuit 55, respectively. As a result, the driving of the heater 80, the cleaning pump 90, the blower fan 51, and the drying heater 52 is controlled.

  A display unit driving circuit 73 is connected to the microcomputer 101, and a display unit 72 is connected to the display unit driving circuit 73. In the microcomputer 101, a control signal of the display unit 72 is generated based on the situation of each part of the dishwasher 100, and is output to the display unit drive circuit 73. As a result, the drive of the display unit 72 is controlled, and the state of the dishwasher 100 is notified.

  A buzzer drive circuit 111 is connected to the microcomputer 101, and a buzzer 110 is connected to the buzzer drive circuit 111. The buzzer 110 and the buzzer drive circuit 111 which drives the buzzer 110 correspond to notification means. In the microcomputer 101, a control signal of the buzzer 110 is generated and output to the buzzer drive circuit 111. The buzzer drive circuit 111 drives the buzzer 110 based on the control signal input from the microcomputer 101. The buzzer drive circuit 111 generates a control signal for instructing the start and stop of sound generation of the buzzer sound.

  FIG. 12 is a flowchart showing a control method of door opening according to the embodiment of the present invention. The control procedure shown in FIG. 12 is a processing procedure for opening the front door 10 when the processing such as washing and drying is not executed and the dishwasher 100 is stopped and the front door 10 is closed. . In step S1, when the detection signal indicating that the touch switch unit 21 is touched is input from the door open switch 20, the microcomputer 101 starts counting the timer, and the touch switch unit 21 is touched. Measure the duration. Then, it is detected whether or not the input of the detection signal continues for a time equal to or more than the threshold. In the present embodiment, this threshold is 1.5 seconds. If the duration of the signal input from the door open switch 20 is less than the threshold, that is, if the touch switch unit 21 is kept touching for less than 1.5 seconds, the process of opening the front door 10 is not performed. finish. If the microcomputer 101 detects that the duration of the input of the detection signal from the door open switch 20 is equal to or greater than the threshold, that is, the touch switch unit 21 continues to continuously touch for 1.5 seconds or more. If it is detected, the process proceeds to step S2. After the detection of whether or not the detection signal input continues for a time longer than the threshold value is completed by the microcomputer 101, the clocked time is reset.

  In step S2, it is notified that the touch switch unit 21 has been touched. Specifically, the microcomputer 101 outputs a drive signal instructing the buzzer drive circuit 111 to drive the buzzer 110, and a buzzer sound is produced. The length of time during which the buzzer sound is generated in step S2 is set to a length that allows the user to recognize the buzzer sound by hearing while being relatively short and instantaneously short. Step S2 is a first notification step of the present invention. Note that the length of sounding of the buzzer sound for notifying that the touch switch unit 21 has been touched in step S2 is shorter than the length of sounding of the buzzer sound of the open notification time described later.

  Next, the process proceeds to step S3, and the microcomputer 101 detects whether the input of the detection signal from the door open switch 20 has stopped, that is, whether the touch on the touch switch unit 21 has stopped. If it is detected that the detection signal from the door opening switch 20 is not input and the touch switch unit 21 is not touched, the process proceeds to step S4.

  In step S4, the microcomputer 101 outputs a control signal instructing the buzzer drive circuit 111 to drive the buzzer 110, and the buzzer 101 generates a buzzer sound to notify that the front door 10 is to be opened. It is started. Next, in step S5, the microcomputer 101 detects whether a detection signal is input from the door open switch 20, that is, whether the touch switch unit 21 is touched. When there is no input of the detection signal and the touch switch unit 21 is not touched, the process proceeds to step S6.

  In step S6, the microcomputer 101 compares the notification continuation time measured by the timer with the open notification time stored in advance in the memory. Then, based on the result of this comparison, it is detected by the microcomputer 101 whether or not the open notification time of the front door 10 has elapsed since the generation of the buzzer sound is started in step S4. In the present embodiment, the open notification time can be distinguished from the notification that the touch switch unit 21 is touched, in step S2, the generation of a buzzer sound for notifying that the touch switch unit 21 is touched. Longer than the length of If the microcomputer 101 detects that the open notification time has not elapsed from the start of the generation of the buzzer sound, the process returns to step S5, and the above-described process is repeated. If it is detected that the open notification time has elapsed from the start of the buzzer sound generation, the process proceeds to step S7. In step S7, the microcomputer 101 outputs a control signal instructing the buzzer drive circuit 111 to stop driving the buzzer 110, and the generation of the buzzer sound is stopped. Steps S4 to S7 constitute a second notification step of the present invention. The time counting time is reset after the open notification time of the front door 10 has elapsed since the start of the generation of the buzzer sound by the microcomputer 101. Then, again, the clocking of the timer is started, and the clocked time of the timer is compared with the preparation time for opening the front door 10 stored in advance in the memory.

  Next, the process proceeds to step S8, the microcomputer 101 compares the timed time of the timer with the preparation time for opening the front door 10 stored in advance in memory, and the preparation time for opening the front door 10 has elapsed. Whether or not it is detected. The preparation time is measured after the above-mentioned open notification time in which the buzzer sound is produced has elapsed. If the preparation time has not elapsed, the process of step S8 is repeated. If it is detected that the preparation time has elapsed, the process proceeds to step S9, and a process of opening the front door 10 is performed. That is, the microcomputer 101 outputs a control signal instructing the door opening unit 40 to move the cleaning tank 2 forward. As a result, the cleaning tank 2 is moved forward by the above-described drive mechanism of the door opening unit 40, and the front door 10 is opened. Step S9 is a door opening step of the present invention. After the microcomputer 101 has completed the comparison between the clocked time of the timer and the preparation time for opening the front door 10, the clocked time is reset.

  In step S5, when the microcomputer 101 receives an input of a detection signal from the door open switch 20 and detects that the touch switch unit 21 is touched during the open notification time, the process of opening the front door 10 is not executed. ,finish.

  After step S3, when the user has the intention to open the door, the door open switch 20 is pressed again as an operation that can be distinguished from a malfunction, and when there is an input of a detection signal, the process of opening the front door 10 May be performed. It becomes clear to open by the user's intention, and it can prevent that it opens accidentally. This is not limited to when the dishwasher 100 is in operation, and may be applied to the control procedure of the door opening process during stoppage.

  In step S3, when it is detected by the microcomputer 101 that the touch switch unit 21 is touched when the generation of the buzzer sound ends, the timer starts counting time. If it is confirmed that the input of the detection signal from the door opening switch 20 is not stopped and the touch switch unit 21 is still in the touched state, the process proceeds to step S10. When the touch switch unit 21 is continuously touched even though the touch switch unit 21 is notified that the touch switch unit 21 is touched in step S2, the touch switch unit 21 continues to be touched against the intention of the user Probability is high. For example, it is conceivable that the body or clothes or the like of the user is in contact with the touch switch unit 21 against the user's intention. Therefore, in step S10, a warning is notified. Specifically, when the microcomputer 101 detects that the timed time of the timer is 30 seconds or more, the buzzer 110 is driven to emit a buzzer sound. The length of pronunciation of the buzzer sound is not short as in the process of step S2, but is long enough to allow the user to recognize that the touch switch unit 21 is unintentionally touched. Is set. Next, the process proceeds to step S11, where it is determined that the touch on the touch switch unit 21 detected in step S1 is invalid, the opening process of the front door 10 is not executed, and the process ends. After the microcomputer 101 has completed the comparison between the time count of the timer and 30 seconds, the time count is reset.

  In the present embodiment, when the touch switch unit 21 is touched during operation of the dishwasher 100 and opening of the front door 10 is executed, the operation of the dishwasher 100 is stopped and then the front door 10 is opened. Is executed. For example, if the dishes are being cleaned, the front door 10 is opened after stopping the washing pump 90 and the heater 80, and if the dishes are being dried, the blower fan 51 and the drying heater 52 are After stopping, the front door 10 is opened. Thereby, when it is desired to add dishes while the dishwasher 100 is in operation, the front door 10 can be opened to store the dishes.

  According to the present embodiment, the member for opening the front door 10 is the touch switch portion 21 provided on the front surface. Therefore, the exterior of the kitchen counter 200 can be made beautiful as compared with the case where a member such as a projecting handle is provided as a member for opening the front door 10.

  After the user touches the touch switch unit 21, it is assumed that the front door 10 is opened with the hand held up to the touch switch unit 21. Under such circumstances, if a large amount of dishes is stored in the cleaning tank 2, the front door 10, which is automatically opened, carelessly collides with the user's hand or finger, resulting in injury such as a finger tip there is a possibility. According to the present embodiment, when the touch switch unit 21 is touched for 1.5 seconds or more, a short buzzer sound notifies that effect, and before the front door 10 is opened, the buzzer is sounded for an open notification time. The sound is continuously emitted to notify that the front door 10 is opened. Thereby, the user can recognize that the front door 10 moves to the near side with the cleaning tank 2 after touching the touch switch portion 21. Therefore, after the touch switch unit 21 is touched, unexpected collision of a hand or a finger with the front door 10 which has moved to the near side, which is a direction opposite to the touch direction, is prevented, which is convenient.

  According to the present embodiment, after the generation of the buzzer sound for notifying that the front door 10 is opened is stopped, the preparation time is provided until the front door 10 is opened. The user can release the hand from the front of the front door 10 during this preparation time, which is convenient.

  After the touch switch unit 21 is touched for 1.5 seconds or more, the touch switch unit 21 is again touched while a buzzer sound is generated for notifying that the front door 10 is opened, or after sound generation. Then, the opening process of the front door 10 is not performed. Therefore, even when the user erroneously touches the touch switch unit 21, the opening process of the front door 10 can be canceled.

  According to the present embodiment, the open process of the front door 10 is not executed when the touch switch unit 21 continues to be touched even after notifying that the touch switch unit 21 is touched. Therefore, when the user's body, clothes or the like contact the touch switch portion 21 against the user's intention, the front door 10 is prevented from being opened.

  In the door opening switch 20, the touch switch portion 21 and the electrode patterns 23, 24, 25 and 26 of the control substrate 3 are capacitively coupled via a plurality of rubber electrodes 221. Therefore, various user interfaces can be provided for touch operations. For example, the touch processing unit 21 may be configured to perform an opening process of the front door 10 by touching the left end to the right end or sliding from the right end to the left end.

  In addition, it is possible to provide a child lock mechanism so as not to open the front door 10 by mischief or the like. The child lock mechanism is a lock mechanism in which the opening process of the front door 10 is not executed even if the touch switch unit 21 is touched in a normal manner. For example, when the change in capacitance is transmitted to only the electrode pattern 23 and the electrode pattern 26 simultaneously, setting or release of the child lock mechanism may be performed when the left and right ends of the touch switch unit 21 are simultaneously pressed long. .

  In the present embodiment, a relatively short buzzer sound is produced in step S2, and the buzzer sound in step S2 is produced over steps S4 to S7. However, the present invention is not limited to this. The manner of sounding of the buzzer sound at step S2 and the manner of sounding of the buzzer sound over steps S4 to S7 so that the notification that the touch switch unit 21 is touched and the notification that the front door 10 is opened can be distinguished. It is good if they are different. For example, a relatively long buzzer sound may be generated in step S2, and a buzzer sound shorter than the buzzer sound in step S2 may be intermittently and continuously generated over steps S4 to S7.

  In the present embodiment, notification is made by generating a buzzer sound, but the present invention is not limited to this. You may comprise so that it may alert | report by audio | voice. For example, in the notification in step S2, an audio may be sent out "The door will open when the switch is released." And an audio "Ready to open the door" may be sent out before execution of step S4. .

  In addition, a notification lamp such as an LED (light emitting diode) may be disposed in the vicinity of the touch switch unit 21 and the notification may be provided visually. When it is detected that the touch switch unit 21 is touched, the operating condition of the touch switch unit 21 can be notified visually by turning on or flashing the notification lamp. When the above-described child lock mechanism is set, the notification lamp is not driven even when the touch switch unit 21 is touched, whereby it is possible to notify that the operation of the touch switch unit 21 is not possible.

  In the present embodiment, the process of opening the front door 10 is executed after the preparation period has elapsed, but the present invention is not limited to this. The time to notify that the front door 10 is opened from step S4 to step S7 may be set longer, and the process of step S8 may be omitted.

  The present embodiment relates to the opening process of the front door 10 of the dishwasher 100, but is not limited thereto. A switch having the same configuration as that of the door opening switch 20 may be arranged in other household appliances provided with an opening / closing unit on the front surface, and the same processing as the processing shown in FIG. 12 may be performed.

  DESCRIPTION OF SYMBOLS 1 housing | casing 2 washing tank, 3 control board | substrate, 4 tableware cage, 5 duct, 10 front door, 11 front operation part, 12 facing materials, 13 facing materials, 14 facing material attachment parts, 15 facing material attachment parts, Reference Signs List 20 door opening switch, 21 touch switch portion, 21a flange portion, 21b hole portion, 22 rubber electrode portion, 23 electrode pattern, 24 electrode pattern, 25 electrode pattern, 26 electrode pattern, 30 exhaust port, 31 exhaust duct, 40 door opening Unit, 41 drive motor, 42 pinion gear, 43 slide shaft, 43a rack part, 44 body part, 50 air blow unit, 51 air blow fan, 52 dry heater, 53 air blow duct, 54 air blow fan drive circuit, 55 dry heater drive circuit, 60 rail member, 70 upper surface operation panel, 71 operation unit, 72 display unit, 73 table Part driving circuit, 80 a heater, 81 heaters driving circuit, 90 washing pump, 91 washing pump driving circuit, 100 a dryer, 101 microcomputer, 110 buzzer, 111 a buzzer driving circuit, 200 a kitchen counter, 221 rubber electrode.

Claims (18)

A built-in type dishwasher and housed in a kitchen counter,
A cleaning tank in which an object to be cleaned is stored;
A front door provided on the front side of the cleaning tank;
A door opening unit which drives the washing tank forward of the dishwasher and opens the front door;
A door open switch provided on the front door for opening the front door;
Notification means;
And control means,
When the control means detects that the door open switch is touched in a state where the front door is closed, the notification notifies that the door open switch is touched and that the front door is opened. A dishwashing and drying machine which drives the door opening unit to move the washing tank forward to open the front door after notifying the means.   The control means detects that the door open switch is touched when detecting that the state in which the door open switch is being touched continues for a time equal to or greater than a threshold while the front door is closed. The dish washer / dryer according to claim 1 to inform.   The control means notifies that the front door is opened when it is detected that the door open switch is not touched after notifying that the door open switch has been touched. Dishwasher-dryer as described in.   The said control means is not performing opening of the said front door if it detects that the said door open switch was touched while alerting | reporting that the said front door is open | released. Dishwasher-dryer according to one item.   The said control means performs opening of the said front door, when it detects that the said door open switch was touched after alerting | reporting that the said front door is open | released. Description Dishwasher-Drier.   The control means does not execute the opening of the front door if it is detected that the state in which the door opening switch is touched continues after notifying that the door opening switch is touched. The dishwasher according to any one of 1 to 5.   The control means notifies that the front door is opened and, after a preparation time for opening the front door has elapsed, drives the door opening unit to move the cleaning tank forward. The dishwasher according to any one of claims 1 to 6, wherein the front door is opened.   The dishwashing dryer according to any one of claims 1 to 7, wherein the control means executes notification of the touch of the door opening switch and notification of the opening of the front door by a buzzer sound. .   The dishwashing dryer according to claim 8, wherein the mode of sound generation of the buzzer sound notifying that the door open switch has been touched is different from the mode of the buzzer sound notifying that the front door is opened. .   The dish washer / dryer according to any one of claims 1 to 9, wherein the door opening switch is a contact type touch switch whose capacitance is changed by being touched by a user. The door open switch is
A touch switch unit touched by the user,
A plurality of conductive members,
And a plurality of electrode patterns formed on the control substrate,
The dish washer / dryer according to claim 10, wherein a change in capacitance generated in the touch switch portion is configured to be capacitively coupled with the plurality of electrode patterns and transmitted by the plurality of conductive members.   The front door is made of the same material, the same color, and the same pattern as the facing of the adjacent construction when the dishwasher is accommodated in the kitchen counter, and the front door and the facing of the adjacent construction The dish washer-dryer as described in any one of Claims 1-11 which has the same appearance. A control method of a front door provided on the front side of a home appliance,
The home electric appliance includes a door opening unit for opening the front door, and a door opening switch provided on the front door for opening the front door.
A first notification step of notifying that the door open switch has been touched when it is detected that the door open switch has been touched while the front door is closed;
A second notification step for notifying that the front door is opened after execution of the first notification step;
And a door opening step of opening the front door after the execution of the second notification step.   The method according to claim 13, wherein the second notification step is executed when it is detected that the door opening switch is not touched after the execution of the first notification step.   The method according to claim 13 or 14, wherein the door opening step is not performed when it is detected that the door opening switch is touched during the second notification step.   The household electrical appliance according to any one of claims 13 to 15, wherein the door opening step is not performed when the state in which the door opening switch is touched continues after the execution of the first notification step. Control method of the front door.   The control method of a front door of a home appliance according to any one of claims 13 to 16, wherein the notification of the first notification step and the second notification step is performed by a buzzer sound.   The control method of a front door of a home electric appliance according to claim 17, wherein an aspect of sounding of the buzzer sound in the first informing step and an aspect of sounding of the buzzer sound in the first informing step are different.

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