JP2021090475A - Electric apparatus and dishwasher - Google Patents

Abstract

To provide a dishwasher capable of preventing a door from being opened when a user has no intention of opening the door, in which a conventional electric apparatus has a switch for opening a lid is exposed outside, and therefore even when a user touches the switch unintentionally and water drips from a sink and adheres, the door opens and the lid may hit the user.SOLUTION: An electric apparatus has at least a lid, control means, and a switch exposed outside and enabling a user to touch it. The control means is made to open the lid when detecting that the switch is brought into a second state within a first predetermined time after detecting the switch being brought into the first state.SELECTED DRAWING: Figure 8

Description

The present invention relates to an electric device having a door on the front surface, particularly a dishwasher used in a state of being built in a kitchen counter.

Conventionally, in some dishwashers, a handle is provided on a door attached to the front surface of the washing tub, and the washing tub is pulled out from the washing machine main body by the user pulling the handle. On the other hand, it is desired to eliminate the handle in order to improve the design. Therefore, a technique is known in which an open switch is provided on the door to automatically open the door (see, for example, Patent Document 1). The dishwasher of Patent Document 1 is provided with a door opening device having a motor, and has a structure in which the washing tub is pushed out from the main body when the user presses the open switch.

Japanese Unexamined Patent Publication No. 2008-73129

In the dishwasher of Patent Document 1, the open switch is arranged on the front side of the main body so that the user can easily operate it. In addition, an electrostatic switch is often used as the open switch from the viewpoint of a sense of unity in the kitchen in terms of design.

In such a dishwasher, since the open switch is provided on the exposed front door, the door may open even if the user unintentionally touches the open switch, and the door may hit the user. Also, when an electrostatic switch is used for the open switch, the door will open even if water drips from the sink and adheres to it, so the user does not know why the door opened and thinks it is a malfunction. In some cases.

The present invention has been made to solve such a problem, and an object of the present invention is to provide a dishwasher capable of suppressing the opening of a door when the user does not intend to open the door.

The electric device according to the present invention includes a main body having an opening, a lid for opening and closing the opening, an input means exposed on the main body or the outer surface of the lid and touchable by the user, and a state change of the input means. Based on this, the control means has a control means for opening the lid, and the control means enters the second state within the first predetermined time after detecting that the input means has entered the first state. When it was detected, the lid was opened.

If the input means does not go into the second state within a certain period of time after it goes into the first state, it is considered that water droplets are attached to the switch or the user accidentally keeps touching the switch. Therefore, do not open the door. As a result, it is possible to prevent the user from hitting the door or opening the door for no reason to make the user feel suspicious.

It is a front view which shows the state which was installed in the kitchen counter of the dishwasher which concerns on Embodiment 1. FIG. It is a vertical sectional view which shows the structure of the dishwasher which concerns on Embodiment 1. FIG. It is explanatory drawing which conceptually shows the structure of the touch switch which concerns on Embodiment 1. FIG. It is a top view which shows the schematic structure of the door opening device which concerns on Embodiment 1. FIG. It is a side view which shows the closed state of the door opening device which concerns on Embodiment 1. FIG. It is a side view which shows the open state of the door opening and closing which concerns on Embodiment 1. FIG. It is a block diagram which shows the electric circuit structure of the dishwasher which concerns on Embodiment 1. FIG. It is a flowchart which shows the operation of the door opening device which concerns on Embodiment 1. FIG. It is a flowchart which shows the operation of the door opening device which concerns on Embodiment 2. It is a flowchart which shows the operation of the door opening device which concerns on Embodiment 3. It is a flowchart which shows the operation of the door opening device which concerns on Embodiment 4.

Embodiment 1.
FIG. 1 is a front view showing a state of being installed in the kitchen counter of the dishwasher according to the first embodiment. The dishwasher 100 is for washing and drying dishes. As shown in FIG. 1, the dishwasher 100 is built in the accommodating portion 200a provided in the kitchen counter 200. The arrow X direction in FIG. 1 represents the width direction of the dishwasher 100, and the arrow Z direction represents the height direction of the dishwasher 100.

FIG. 2 is a vertical cross-sectional view showing the structure of the dishwasher according to the first embodiment. The arrow Y direction in FIG. 2 represents the depth direction of the dishwasher 100. As shown in FIG. 2, the dishwasher 100 includes a washing machine main body 1, a washing tank 2, an inner lid 3, a control device 4, and a door opening device 7. The washing machine main body 1 is formed in a box shape having an opening 1a in the front, and houses the washing tank 2.

The washing tank 2 has a box shape with an opening at the top, and a tableware basket 22 on which the tableware 21 and the like are placed is housed inside. Rails 23 extending in the depth direction (arrow Y direction) are provided at the lower portions of both side surfaces of the cleaning tank 2. A guide rail (not shown) is provided at a position facing the rail 23 of the washing machine main body 1. The washing tank 2 is supported by the washing machine main body 1 via a rail 23 so as to be freely moved in and out from the opening 1a of the washing machine main body 1. When a force in the depth direction (arrow Y direction) is applied to the cleaning tank 2 by the door opening device 7, the rail 23 slides the guide rail and the cleaning tank 2 moves. Tableware 21 and the like are taken in and out through the opening of the washing tank 2 in a state where the washing tank 2 is pushed forward from the opening 1a of the washing machine main body 1.

The washing tank 2 has a door 10 on the front surface that closes the opening 1a of the washing machine main body 1. As shown in FIG. 1, the door 10 has an upper decorative panel 11, a lower decorative panel 12, and an operation panel 13. The upper decorative panel 11 and the lower decorative panel 12 have the same material and design as the surface material of the surrounding structure adjacent to the kitchen counter 200, and are arranged at a predetermined height of the kitchen counter 200.

The operation panel 13 is a long member extending in the width direction (arrow X direction) of the dishwasher 100, and is arranged between the upper decorative panel 11 and the lower decorative panel 12. The operation panel 13 is provided with an operation unit 8 that accepts the user's operation, a notification unit 9 that notifies the user of the operating state, and an exhaust port 24 that communicates with the inside of the cleaning tank 2. The exhaust port 24 serves as an outlet for air in the washing tank 2 when the dishwasher 100 dries.

The operation unit 8 has an open switch 80 for opening the door 10. The open switch 80 comprises a touch switch. The notification unit 9 is a lamp that emits light, and lights or blinks as needed. The operation unit 8 and the notification unit 9 are electrically connected to the control device 4, respectively.

As shown in FIG. 2, the inner lid 3 is the upper surface of the washing tank 2 and is provided inside the washing machine main body 1 and is fixed to the washing machine main body 1. The inner lid 3 closes the opening above the washing tank 2 when the washing tank 2 is completely housed in the washing machine main body 1.

The dishwasher 100 also includes a latch device 61 and a door open detection device 62. The latch device 61 holds the washing tank 2 housed in the washing machine main body 1. When the washing tank 2 is completely housed in the washing machine main body 1, the latch device 61 urges the washing tank 2 to the washing machine main body 1 and closes the door 10 provided on the front surface of the washing tank 2. Hold on.

The door open detection device 62 detects whether or not the door 10 is open, and is formed by a magnet 62a and a reed switch 62b. The magnet 62a is arranged on the bottom surface of the washing machine main body 1, and the reed switch 62b is arranged on the bottom plate 2a of the washing tank 2 at a position facing the magnet 62a when the door 10 is closed. When the door 10 is closed, the magnet 62a and the reed switch 62b are located within a certain distance, and the reed switch 62b is turned on. When the door 10 is opened and the magnet 62a and the reed switch 62b are separated from each other by a certain distance, the reed switch 62b is turned off.

Further, in the washing machine main body 1, a washing device for washing and drying tableware 21 and the like is installed. Specifically, the cleaning device includes a water supply valve 51, a cleaning pump 52, a cleaning nozzle 53, a water amount detecting device 54, a first heater 55, a temperature detecting device 56, a drainage pump 57, and a blower fan. It is formed of various parts such as 58 and a second heater 59 and the like.

The water supply valve 51 is provided between the rear part of the washing tank 2 and the washing machine main body 1, and controls the supply of tap water to the washing tank 2. The cleaning pump 52 is provided in the cleaning tank 2, and the cleaning water stored in the lower portion 2b is pumped to the cleaning nozzle 53. The washing nozzle 53 is provided below the tableware basket 22 in the washing tank 2 and injects the washing water supplied from the washing pump 52. The water amount detecting device 54 is composed of, for example, a water level sensor or the like, and detects whether or not a preset amount of washing water has been supplied to the lower portion 2b of the washing tank 2. The first heater 55 is provided in the washing tank 2 and heats the stored washing water. The temperature detection device 56 detects the temperature of the washing water. The drainage pump 57 is provided in the washing tank 2 and discharges the washing water in the washing tank 2 to the outside of the dishwasher 100.

The blower fan 58 supplies outside air to the inside of the washing tank 2, and discharges the hot and humid air in the washing tank 2 to the outside of the dishwasher 100 through the exhaust port 24 provided in the door 10. .. The second heater 59 is provided in the air passage that communicates the blower fan 58 and the cleaning tank 2, and heats the outside air supplied to the cleaning tank 2. The various parts described above are electrically connected to the control device 4.

The control device 4 is arranged inside the door 10 and is formed by a microcomputer 42 (see FIG. 7) or the like. The microcomputer 42 has a CPU (central processing unit), various memories, and the like, and controls the operation of the entire dishwasher 100.

FIG. 3 is an explanatory diagram conceptually showing the configuration of the open switch 80 according to the first embodiment. The configuration and operation of the open switch 80 will be described in detail with reference to FIG.

The open switch 80 has a touch switch portion 81, a rubber electrode portion 82, and four electrode patterns 83a, 83b, 83c, and 83d formed of copper foil.

The touch switch portion 81 is a box-shaped member having a rectangular parallelepiped shape whose outer surface protrudes forward and a recessed back side, and is made of, for example, resin. The touch switch portion 81 has flange portions 81a on the left and right sides of the rear end, and each flange portion 81a is formed with a hole portion 81b. The touch switch portion 81 is fixed to the operation panel 13 via the flange portion 81a by a screw or the like inserted into the hole portion 81b, and the front surface 81c is exposed to the outside of the dishwasher 100.

The rubber electrode portion 82 is a rectangular parallelepiped member, and has a plurality of rubber electrodes 821 made of conductive rubber. The plurality of rubber electrodes 821 are arranged in a row along the longitudinal direction of the touch switch portion 81. Each rubber electrode 821 is a conductor extending from the front end to the rear end, and the periphery thereof is covered with an insulating rubber. The touch switch portion 81 and the rubber electrode portion 82 are arranged so that the longitudinal direction extends along the width direction (arrow X direction) of the dishwasher 100. The front portion of the rubber electrode portion 82 is housed in a recess on the back surface side of the touch switch portion 81, and the front surface of the plurality of rubber electrodes 821 is arranged in contact with or close to the bottom surface of the recess of the touch switch portion 81. That is, the front surface of the plurality of rubber electrodes 821 is located on the back surface side of the front surface 81c of the touch switch portion 81.

The rear ends of the plurality of rubber electrodes 821 are arranged in contact with the resist applied to the surfaces of the four electrode patterns 83a, 83b, 83c, and 83d. That is, the touch switch portion 81 and the four electrode patterns 83a, 83b, 83c, and 83d are capacitively coupled to each other via the plurality of rubber electrodes 821. Therefore, the change in capacitance generated when the user touches the touch switch portion 81 with a finger or the like is transmitted to the four electrode patterns 83a, 83b, 83c, and 83d by the plurality of rubber electrodes 821. The touch switch portion 81 and the four electrode patterns 83a, 83b, 83c, and 83d may be capacitively coupled by a conductive member different from the rubber electrode 821. Further, any number of electrode patterns may be provided.

Further, the electrode patterns 83a, 83b, 83c, and 83d are connected to the touch microcomputer 90. The touch microcomputer 90 transmits an ON detection signal and an OFF detection signal to the microcomputer 42 based on the change in capacitance in the electrode patterns 83a, 83b, 83c, and 83d. Specifically, when the capacitance becomes larger than the reference capacitance (for example, A) by a set value (for example, B), that is, when the capacitance exceeds the capacitance threshold A + B. In the (first state), when the ON detection signal is transmitted to the microcomputer 42 and the capacitance falls below the capacitance threshold A + B (second state), that is, the original reference capacitance When it returns to, an OFF detection signal is transmitted.

Regarding the reference capacitance A, the capacitances of the electrode patterns 83a, 83b, 83c, and 83d immediately after the touch microcomputer 90 is reset by receiving the reset signal from the microcomputer 42 are first set. After that, if the capacitance of the electrode patterns 83a, 83b, 83c, 83d at that time is smaller than A + B every predetermined time (for example, 0.1 second), the capacitance is used as a reference static. Drift control is performed by resetting the capacitance.

For example, when the touch switch portion 81 of the open switch 80 is touched with a finger, the capacitances of the electrode patterns 83a, 83b, 83c, and 83d exceed the capacitance threshold value A + B, so that the touch microcomputer 90 transmits an ON detection signal. When the finger is released, the capacitance becomes smaller than the capacitance threshold value A + B, so that an OFF detection signal is transmitted.

FIG. 4 is a plan view showing a schematic configuration of the door opening device according to the first embodiment. FIG. 5 is a side view showing a closed state of the door opening device according to the first embodiment. FIG. 6 is a side view showing an open state of opening and closing the door according to the first embodiment. The configuration of the door opening device 7 will be described with reference to FIGS. 2 and 4 to 6.

The door opening device 7 drives the cleaning tank 2 in the forward direction (direction of arrow Y1 in FIG. 2) to open the door 10. The door opening device 7 includes a main body 71, a motor 72, a pinion gear 73, a slide shaft 74, and a close detection switch 76.

The main body 71 is attached to the bottom plate 2a of the cleaning tank 2. A shaft groove 71a extending in the depth direction (arrow Y direction) is formed in the main body 71. The motor 72 is installed in the main body 71, and the motor shaft 72a is rotated by energization. The pinion gear 73 is fixed to the motor shaft 72a and rotates with the rotation of the motor shaft 72a. The slide shaft 74 is formed with a rack portion 74a that engages with the pinion gear 73. The slide shaft 74 is slidably inserted into the shaft groove 71a and is held by a holding portion 71b provided in the main body portion 71.

The close detection switch 76 is composed of, for example, a limit switch or the like, and detects that the door 10 is closed depending on the position of the slide shaft 74. The close detection switch 76 is provided in the innermost part of the shaft groove 71a, and is pushed to the ON state when the slide shaft 74 is inserted to the innermost part. The signal from the close detection switch 76 is transmitted to the control device 4.

Next, the opening operation of the door opening device 7 will be described with reference to FIGS. 2, 5 and 6. When the motor 72 is driven to rotate the pinion gear 73 in the direction of arrow A, the slide shaft 74 moves rearward with respect to the main body 71. Since the rear end 74b of the slide shaft 74 is arranged so as to come into contact with the rear wall 1c of the washing machine main body 1, when the slide shaft 74 extends from the main body 71, the rear wall 1c of the washing machine main body 1 is used as a fulcrum. The main body 71 moves forward. Therefore, the cleaning tank 2 to which the main body 71 is attached also moves forward (in the direction of arrow Y1 in FIG. 2) together with the main body 71.

In this way, when the door opening device 7 opens, the power of the motor 72 is transmitted to the slide shaft 74 via the pinion gear 73. As a result, a force acts between the washing machine main body 1 and the washing tank 2, the washing tank 2 is pushed out from the inside of the washing machine main body 1, and the door 10 is opened. Here, the voltage applied to the motor 72 is the power of the motor 72 to release the latch device 61 holding the washing tank 2 and push out the tableware 21 and the washing tank 2 under the load of the washing device. Is preset so that

Further, when the motor 72 is driven so as to rotate the pinion gear 73 in the direction opposite to the direction of arrow A, the slide shaft 74 is pulled back into the main body 71, and the cleaning tank 2 is rearward (in the direction of arrow Y2 in FIG. 2). And is drawn into the washing machine main body 1. After that, as shown in FIG. 5, when the slide shaft 74 is inserted to the innermost part of the shaft groove 71a, the closing detection switch 76 detects that the door 10 is closed, and the motor 72 is stopped.

FIG. 7 is a block diagram showing an electric circuit configuration of the dishwasher according to the first embodiment. The control device 4 has a plurality of drive circuits for driving various parts, and each drive circuit is electrically connected to the microcomputer 42. The heater drive circuit 43 drives the first heater 55 and the second heater 59. The water supply valve drive circuit 44, the cleaning pump drive circuit 45, the drainage pump drive circuit 46, and the blower fan drive circuit 47 drive the water supply valve 51, the cleaning pump 52, the drainage pump 57, and the blower fan 58, respectively. .. Further, the control device 4 has a notification unit drive circuit 48 for driving the notification unit 9, and a door opening device drive circuit 49 for driving the motor 72 of the door opening device 7. The control means is composed of the touch microcomputer 90, the microcomputer 42, these drive circuits, and the like.

Further, the control device 4 is provided with an overcurrent detection device 63 that detects an overcurrent flowing through the motor 72. Specifically, the overcurrent detection device 63 measures the current of the door opening device drive circuit 49, and detects it as an overcurrent when the measured current becomes equal to or higher than a preset current value.

Signals are input to the microcomputer 42 from the operation unit 8, the water amount detection device 54, the temperature detection device 56, the door open detection device 62, the overcurrent detection device 63, and the close detection switch 76. Further, the microcomputer 42 corresponds to a signal for controlling each of the first heater 55, the second heater 59, the water supply valve 51, the cleaning pump 52, the drainage pump 57, the blower fan 58, the motor 72, and the notification unit 9. Output to the drive circuit.

The microcomputer 42 controls operations such as washing and drying according to a preset program. The microcomputer 42 starts operation when it receives a signal from a start switch (not shown) of the operation unit 8. Specifically, the microcomputer 42 controls the opening and closing of the water supply valve 51 based on the signal from the water amount detection device 54, and energizes the first heater 55 and the cleaning pump 52 in response to the signal from the temperature detection device 56. The cleaning process is performed by controlling the energization of the computer. Further, the microcomputer 42 performs the drying step by controlling the energization of the drainage pump 57 and the energization of the second heater 59.

FIG. 8 is a flowchart showing the operation of the door open control according to the first embodiment. The door open control will be described with reference to FIG.
First, the touch microcomputer 90 receives a reset signal or the like from the microcomputer 42 and starts drift control (step ST10). In this state, it is determined whether or not the capacitance of the open switch 80 is larger than the reference capacitance (A) by a predetermined threshold value (B) or more, that is, whether or not the capacitance exceeds the capacitance threshold value A + B ( ST11: Touch switch detection ON). The state in which the capacitance threshold value A + B is exceeded (first state) occurs, for example, when a person touches the touch switch portion 81 of the open switch 80 with a finger. If the value is exceeded in ST11, the touch microcomputer 90 stops drift control and transmits an ON detection signal to the microcomputer 42 (ST12). When the microcomputer 42 receives the ON detection signal, it activates an internal timer and controls the notification unit drive circuit 48 to sound a buzzer sound from the notification unit 9 for a short time (1 second) (1 second). ST13).
After that, the microprocessor 42 determines whether or not 7 seconds (first predetermined time) have elapsed by the activated timer (ST14). Further, the touch microcomputer 90 determines whether the capacitance of the open switch 80 has returned to the reference capacitance, that is, whether it has fallen below the capacitance threshold value A + B (ST15: touch switch detection OFF). The state of returning to the reference capacity, that is, lower than A + B (second state) occurs, for example, when a person releases his / her finger from the touch switch portion 81 of the open switch 80.

Here, if the touch microcomputer 90 determines in ST15 that the capacitance of the open switch 80 is smaller than the capacitance threshold value A + B within 7 seconds, an OFF detection signal is transmitted to the microcomputer 42. To do. When the microcomputer 42 receives the OFF detection signal, it controls the notification unit drive circuit 48 to sound a buzzer sound from the notification unit 9 for a short time (1 second) (ST16) and drives the door opening device. The circuit 49 is controlled to move the motor 72 and the door 10 is opened (ST17). Further, when 7 seconds or more have passed in ST14, the microcomputer 42 resets the touch microcomputer 90 (ST18). After that, it returns to ST10.

Normally, it takes one second or more, usually about two to three seconds, for the user to touch the touch switch portion 81 of the open switch 80 with a finger and then release it. The case where it takes 7 seconds or more means that the user's body is unknowingly touching the touch switch portion 81 of the open switch 80, or that water droplets are retained on the surface of the touch switch portion 81 of the open switch 80. And so on.

In the control of FIG. 8, when the user unknowingly touches the touch switch portion 81 of the open switch 80, or when water droplets or the like stay on the surface of the touch switch portion 81 of the open switch 80, Since the door 10 does not open, it is possible to prevent the door 10 from opening without the user being aware of it, for example, hitting the user or giving a suspicious feeling.

Even if water droplets are accumulated on the surface of the touch switch portion 81 of the open switch 80, the touch switch 81 is reset after 7 seconds have elapsed in ST14, so that the open switch 80 is still in a state where the water droplets are accumulated. Since the electric capacity becomes the reference capacitance, even when the user touches the touch switch unit 81 of the open switch 80 with a finger in this state, the control after ST11 can be performed.

Further, after that, even when water droplets flow down from the surface of the touch switch portion 81 of the open switch 80 and disappear, the drift control continues, so that the capacitance of the open switch 80 without water droplets is used as the reference capacitance. Will be.

Embodiment 2.
FIG. 9 is a flowchart showing the operation of the door opening device according to the second embodiment. FIG. 9 is different from that of FIG. 8 in that the door 10 is not opened when the time until the door is turned off is extremely short. First, ST10 to ST15 are carried out in the same manner as in FIG.
Then, if the microcomputer 42 receives the OFF detection signal in ST15 before 7 seconds have elapsed in ST14, it is determined whether or not 1 second (second predetermined time) has elapsed (ST20). If 1 second has passed, the process shifts to ST16.
If 1 second has not passed in ST20, the process shifts to ST18.

The case where the change in the capacitance of the open switch 80 occurs in a short time is, for example, when the user's body touches momentarily or when water droplets flow down on the surface of the touch switch portion 81 of the open switch 80. Etc. are assumed. In the control of FIG. 9, since the door 10 does not open in such a case, it is possible to suppress, for example, hitting the user or giving a suspicious feeling.

Embodiment 3.
FIG. 10 is a flowchart showing the operation of the door opening device according to the third embodiment. FIG. 10 is different from that of FIG. 8 in that the temperature change of the touch switch unit is confirmed and controlled.

First, ST10 and ST11 are performed, and when the capacitance of the open switch 80 becomes larger than the reference capacitance (A) by the set value (B) or more in ST11, that is, the capacitance threshold value A + B is set. If it exceeds, the touch microcomputer 90 stops the drift control (ST12), and then determines whether or not there is a change in the temperature of the touch switch unit 81 detected by the touch switch temperature detection unit 93 (ST30). .. For example, when water droplets are retained on the surface of the touch switch portion 81, there is not much temperature change. On the other hand, when the user touches the touch switch unit 81 with a finger, the temperature change is large. Therefore, a constant temperature threshold value is set, and when the temperature change is smaller than the temperature threshold value, it is assumed that water droplets are attached and the temperature shifts to ST18. Only when the temperature change is larger than the temperature threshold value, ST13 I am trying to move to. The first state is a state in which the capacitance of the open switch 80 exceeds the capacitance threshold value A + B and the temperature change of the open switch 80 exceeds the temperature threshold value.
Further, in the case of shifting to ST13, after that, ST14 or later is executed, and the state in which the capacitance of the open switch 80 is lower than the capacitance threshold value A + B is the second state.

In this way, when water droplets stay and a change in capacitance is detected, the buzzer is not notified, so the user who has not touched the open switch feels suspicious why the buzzer sounded. Can be suppressed.

Embodiment 4.
FIG. 11 is a flowchart showing the operation of the door opening device according to the fourth embodiment. FIG. 11 is different from that of FIG. 8 in that when OFF is not detected within 7 seconds, an abnormality is announced by voice.

First, ST10 to ST15 are carried out. Here, it is the user that the timer continues to be larger than the reference capacitance (A) by the set value (B) or more, that is, the capacitance threshold value A + B is exceeded until 7 seconds elapse. It is considered that the touch switch portion 81 of the open switch 80 is touched without being aware of it, or that water droplets or the like are retained on the surface of the touch switch portion 81 of the open switch 80.
Therefore, the microcomputer 40 controls the notification unit drive circuit 48 and announces that "the open switch is pressed. Please check the situation." To notify the user of the abnormality. As a result, the user can guide an action such as moving away from the touch switch unit 81 or wiping water droplets on the touch switch unit 81.

Although the description of FIGS. 9 to 11 is based on FIG. 8, the feature portions of FIGS. 9 to 11 may be combined with each other. Further, although a touch switch is used as the open switch, it may be a switch such as a push button. In this case, the state in which the push button is pressed corresponds to the first state, and the state in which the push button is released corresponds to the second state.

1 Washing machine body, 1a opening, 1c rear wall, 2 washing tank, 2a bottom plate, 2b lower part, 3 inner lid, 4 control device, 7 door opening device, 8 operation part, 9 notification part, 10 door, 11 top makeup Panel, 12 lower decorative panel, 13 operation panel, 21 tableware, 22 tableware basket, 23 rails, 24 exhaust port, 41 control board, 42 microcomputer, 43 heater drive circuit, 44 water valve drive circuit, 45 cleaning pump drive circuit, 46 Drainage pump drive circuit, 47 Blower fan drive circuit, 48 Notification unit drive circuit, 49 Door opening device drive circuit, 51 Water supply valve, 52 Cleaning pump, 53 Cleaning nozzle, 54 Water volume detector, 55 First heater, 56 Temperature Detection device, 57 drainage pump, 58 blower fan, 59 second heater, 61 latch device, 62 door open detection device, 62a magnet, 62b lead switch, 63 overcurrent detection device, 71 main body, 71a shaft groove, 71b holding , 72 motor, 72a motor shaft, 73 pinion gear, 74 slide shaft, 74a rack part, 74b rear end, 76 closed detection switch, 80 open switch, 81 touch switch part, 81a flange part, 81b hole part, 81c front, 82 rubber electrode part, 83a, 83b, 83c, 83d electrode pattern, 90 touch microcomputer, 91 audio output part, 93 touch switch temperature detection part, 100 dishwasher, 200 kitchen counter, 200a storage part, 821 rubber electrode

Claims (10)

A body with an opening and
A lid that opens and closes the opening,
An input means that is exposed on the outer surface of the main body or the lid and can be touched by the user.
In an electric device having a control means for performing an operation of opening the lid based on a state change of the input means.
The control means is characterized in that the lid is opened when it is detected that the input means is in the first state and then the second state is detected within the first predetermined time. Electrical equipment. A body with an opening and
A lid that opens and closes the opening,
An input means that is exposed on the outer surface of the main body or the lid and can be touched by the user.
In an electric device having a control means for performing an operation of opening the lid based on a state change of the input means.
When the control means detects that the input means has entered the first state and then detects that the input means has entered the second state between the second predetermined time and the first predetermined time, the control means has a second state. An electrical device characterized by opening the lid. The input means is a touch switch whose capacitance changes when the user touches it.
The first state is a state in which the capacitance exceeds the capacitance threshold, and the second state is a state in which the capacitance is lower than the capacitance threshold. Item 2. The electric device according to Item 1 or 2. The input means is a touch switch whose capacitance and surface temperature change when the user touches it.
The first state is a state in which the capacitance exceeds the capacitance threshold and the temperature change of the surface temperature exceeds the temperature threshold, and the second state is a state in which the capacitance exceeds the capacitance. The electrical device according to claim 1 or 2, wherein the state is below the threshold value. The electrical device according to claim 3 or 4, wherein the capacitance threshold value is the sum of a reference capacitance and a predetermined set value. The electrical device according to claim 5, wherein the reference capacitance changes based on the capacitance of the input means to be periodically detected. With more notification means
The electric device according to any one of claims 1 to 6, wherein the control means drives the notification means when the first state is detected. It is equipped with a notification means that notifies by voice.
The electricity according to any one of claims 1 to 7, wherein the control means drives the notification means to perform voice notification when the second state is not detected within the first predetermined time. machine. A body with an opening and
A lid that opens and closes the opening,
A touch switch that is exposed on the outer surface of the main body or the lid and whose capacitance changes when the user touches it.
A touch microcomputer that transmits an ON detection signal when the capacitance of the touch switch exceeds the capacitance threshold, and an OFF detection signal when the capacitance of the touch switch falls below the capacitance threshold.
A dishwasher comprising a microcomputer that opens the lid when an OFF detection signal is received within a predetermined time after receiving an ON detection signal from the touch microcomputer. If the microcomputer does not receive the OFF detection signal within a predetermined time, it transmits a reset signal to the touch microcomputer, and when the touch microcomputer receives the reset signal, the capacitance is based on the capacitance of the touch switch. The dishwasher according to claim 9, wherein the threshold value is changed.

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