WO2019015960A1

WO2019015960A1 - Household appliance having at least one movable door or panel

Info

Publication number: WO2019015960A1
Application number: PCT/EP2018/068058
Authority: WO
Inventors: Andreas Heidel; Peter Jochimski; Bernd KRÄNZLE; Markus Wecker; Sebastian Wagner; Christian Duscher
Original assignee: BSH Hausgeräte GmbH
Priority date: 2017-07-18
Filing date: 2018-07-04
Publication date: 2019-01-24
Also published as: DE102017212229A1

Abstract

The invention relates to a dishwasher (1), in particular a domestic dishwasher, having a washing compartment (2) to accommodate crockery, glasses, cutlery or similar items for washing, this washing compartment (2) being capable of being closed by means of at least one door or panel (3) which is movable between an open and a closed position. A device (15) is provided which serves to detect whether the door or panel (3) is closed or open. The dishwasher is designed so that in a standby state of the dishwasher (1) the device (15) is kept in a functional state and during opening and/or closing of the door and during a door movement above a defined threshold at least one electronic unit (16, 17) connected downstream is shifted into an awakened state in which the electronic unit (16: 17) connected downstream is live and performs further functions.

Description

Household appliance with at least one movable door or flap

The present invention relates to a dishwasher, in particular a domestic dishwasher, with a washing container for receiving dishes, glasses, cutlery or similar items to be washed, said washing container is closed by at least one movable between an open and a closed position door or flap and wherein a device provided that is used to detect whether the door or flap is closed or open, according to the preamble of claim 1.

For the operation of a dishwasher, it is important to ensure the lowest possible energy consumption in the so-called standby mode and to put as many components as possible in a switched off or power-saving sleep mode. In particular, future statutory energy-saving requirements should already be met. On the other hand, when the customer comes into contact with the dishwasher, it should be possible to switch on the operating state as quickly as possible.

US 201 1 0260553A1 shows the possibility of activating a switch by opening or closing the door and thereby switching the mains supply of a dishwasher off or on. However, in the switched-off state, the dishwasher is completely disconnected from the mains voltage so that a system start-up takes a relatively long time after switching on again. In addition, in case of electrical isolation also possible network or safety functions are no longer in a standby state. In addition, only a direct switch operation through the door is possible, any movements of the door with already opened lock are not detected.

The invention is based on the problem of achieving an improvement here.

The invention solves the problem by a household appliance having the features of claim 1. With regard to further advantageous embodiments and features of the invention, reference is made to the claims 2 to 15. In the embodiment according to claim 1, characterized in that in a standby state of the dishwasher, the device is held in a functional state and at a door opening and / or -Lock and / or door movement above a defined threshold downstream electronics in a full operating mode offset, in which the downstream electronics is energized and performs other functions, even in this "off" state of the dishwasher at least one door sensor continues active, so that an intended operation of the dishwasher by a user via a door at any time without delay is detected It is also not necessary to lock the door into the lock, but it may also be possible to wake up the further electronics (s) via a door movement outside the lock.

The device may comprise at least one of the movable door or flap associated acceleration sensor, so that the door movement is detected outside a lock operation.

If the acceleration sensor detects a relative orientation to the vector of the gravitational acceleration g in three axes, a significant amplitude change in two axes can be detected when the door swings open. The acceleration sensor may also include a gyroscope, also yaw rate sensor.

The device may also include an angle sensor or other mechanical sensor capable of detecting the position and / or movement of the door.

By waking up the other ^functions' may be accompanied by an interrogation of the door status, so that then reacts of the dishwasher below, and controls whether, for example, an emotion-light is switched on or a control electronics is switched on with a touchpad.

In particular, in a standby state of the dishwasher, the power requirement of the device is less than 300 mW, particularly favorable also less than 1 mW, so that despite the functions still obtained in this state, the power requirement remains very low. Nevertheless, waking up one or more downstream electronics (s) may quickly occur. These may include power electronics and / or control electronics, such as the mentioned touchpad, an emotion-iight or other elements. Very favorable, the downstream electronics is put into their normal operating state by waking up.

Further, it is advantageous if the downstream electronics includes a timed automatic shutdown in their awake state. Thus, for example, after an accidental door movement, for example by a pet without another operation, the energy-saving state of the dishwasher can be automatically and quickly set again.

For a simple and cost-saving design, the dishwasher can be designed without an electrical main switch, since the switching on and off is possible only by the device according to the invention with detection of a door movement or acceleration detection in the lock.

Furthermore, the device and the downstream electronics can be reliably connected to one another via a data bus, which can also be used to bridge long distances in the dishwasher.

Further advantages and features will become apparent from the drawing illustrated and described below embodiments of the subject invention.

In the drawing shows:

1 is a schematic perspective view obliquely from the front of an embodiment of a household appliance, here by way of example a dishwasher, with a front door here, 2 is a schematic side view of the dishwasher of Figure 1 with an opening door, wherein various possible sensor positions are located,

Fig. 3 is a waveform of the angular acceleration in the direction of the x-axis and the vertical z-axis of the door, plotted against time, at opening and

then closing the door,

Fig. 4 is a block diagram of a device according to the invention with detection sensor and further electronics and thereof to be switched further

components

Fig. 5 is a schematic flow chart of the awakening via a sensor.

The dishwashing machine 1 shown schematically in FIG. 1 is a household dishwashing machine. This has as part of a partially open to the outside or closed device body 5 a washing container 2 for receiving ware to be processed dishes, pots, cutlery, glasses, cooking utensils u. on. The items to be washed can, for example, be held in dish racks 1 1 and / or a cutlery drawer 10 and can be acted upon by so-called rinsing liquor. The rinsing liquor is fresh or, in particular, circulating water during operation with or without cleaning agent and / or rinse aid and / or desiccant. The rinsing container 2 may have an at least substantially rectangular outline with a front side V facing a user in the operating position. This front V can form a part of a kitchen front of kitchen furniture standing side by side or even be without reference to other furniture in a stand-alone device.

The washing container 2 can be closed by a door or flap 3, in particular on this front side V. This door 3 is shown in Figure 1 in partially open and then inclined to the vertical position. In its closed position, however, it stands upright and is according to the drawing to its opening about a lower horizontal axis forward and downward in the direction of arrow 4 at an angular velocity ω swung open, so that it is at least almost horizontal in the fully open position.

At its in the closed position, the user facing the outside and front V, the door 3 may be provided with a decorative plate 6, so as to experience a visual and / or haptic appreciation and / or adaptation to surrounding kitchen furniture.

The household appliance 1 is designed here as a stand-alone or as a so-called. Semi-integrated or as a fully integrated device. In the latter case, the device body 5 may also terminate substantially with the outer walls of the washing compartment 2. A surrounding this exterior housing can then be dispensed with. In the lower area of the dishwasher, a base 12 may be located for receiving in particular functional elements. The movable door 3 is assigned in the embodiment according to the drawing in its upper part a transverse direction Q of the dishwasher extending control panel 8, which may include an accessible from the front V engagement opening 7 for manually opening and / or closing the door 3. In the transverse direction Q, the dishwasher often has an extension of 45, 50 or 60 centimeters. In the depth direction from the front V to the rear, the extension is often also at about 60 centimeters. The values are not mandatory.

The washing container 2 is circumferentially bounded by a total of closed door or flap 3 three fixed vertical walls 13 and two horizontal walls 13, one of which forms a ceiling (top) and another a bottom (bottom) of the washing compartment 2. The front side, the user and arranged here movable wall 14 forms a part of the movable door or flap 3.

For detecting the door ^status, a device 15 is provided, which determines via one or more sensor (s), whether the door or flap 3 is closed or open or is in the phase of closing or opening movement. This device 15 may comprise one or more sensors, in particular acceleration sensor (s) 18, via which the relative orientation of the door or flap 3 can be determined. In particular, these are inclination / acceleration sensors. This can be used to determine whether the door 3 is open or closed. Likewise, their movement position can be determined - as well as a movement of the door. Advantageously and at the same time inexpensively, the acceleration sensor 18 can detect a relative orientation to the vector of gravitational acceleration in three axes. Also, a detection in addition to the change in angular velocity in three axes (gyroscope) is possible. Since, according to the invention, additional functions depend on the detection of the device 15, the device 15 also remains in a functional state even when the dishwasher 1 is largely switched off, namely a standby state of the dishwasher 1, ie, it is always at "switched off". Dishwasher 1, able to detect the door status.

In this case, however, at least one downstream electronics 16, 17 can be set by the device 15 in a detected by this door opening and / or -Lock and / or door movement above a defined threshold in a wake-up state in which the downstream electronics (s) is under tension or standing and can perform other functions. That is, in the "off" state, these downstream electronics 16, 17 themselves do not need to have any electrical power, so this state is very energy efficient.This state is also referred to as the deep-sleep state It may be sufficient in this state if only the device 15 is supplied with power via the acceleration sensor 18. The power supply unit then does not have to supply any additional electronics 16, 17 with voltage, but these can be switched completely de-energized.

In this case, the device 15 may comprise at least one of the movable door or flap 3 associated acceleration sensor 18. This can be arranged on the door 3 itself, for example, at the top, as can be seen in FIG. Alternatively, an arrangement may be provided directly on a circuit board 19 of the control electronics. additionally or alternatively, an arrangement on the body 5 is possible, with which the lock is detected in its opening or closing state.

The acceleration sensor can detect a relative orientation to the vector of the gravitational acceleration g in three axes and thus at the same time indicate the orientation of the unit provided with the sensor, here the door 3. Thus, in the case of the door opening, initially a vertical axis is parallel to the vector of gravitational acceleration, while at the end the door 3 is horizontal and therefore the axis offset by 90 ° is parallel to the acceleration due to gravity g in order to obtain a maximum signal change. In FIG. 3, the peaks (transients) P1 are visible when the lock is opened and P2 when the lock is closed. When the door opening, there is a rash P1 up, the door closing a rash P2 up and down, because there the lock latch must be swung in a catching function for the door, in which the latch can pull the door active. With the door closed 3, the acceleration sensor 18 is in a rest position, the integral tilt sensor reports a 90 ° angle. If the door 3 is opened by the user, a jolt (change in acceleration) occurs when it is opened by the movement-inhibiting element.

With this arrangement of an acceleration sensor 18, it is not only possible to detect the opening or closing of the door as a triggering event and trigger for other functions. However, it is also possible to detect a door movement of just a few degrees already as triggering trigger. For example, the door 3 may be ajar with an opening angle of, for example, 10 ° in order to allow ventilation of the washing container 2. If a user then opens the door 3 a little further, for example by more than 3 °, this can already be detected by the device 15, which thus places the further electronics 16, 17 in a woken-up operating state.

In order to avoid faulty conditions with too high an energy requirement, the downstream electronics 16, 17 in their awake state comprise a time-controlled automatic switch-off. If no further action occurs after waking up, for example the start of a wash program, the downstream electronics (s) 16, 17 will be shut down after a preset time, for example one minute, such that the initial energy-optimized sleep state then again is made. This is shown in Figure 5 in the left part: After the awakening is ensured by the change in angle of the door 3, either the customer can start a program, or after a "timeout" of, for example, one minute, the device goes back to the above sleep mode In this case, in the said idle state (standby state) of the dishwasher 1, the power requirement of the device 15 and the downstream electronics 16, 17 to be woken up by the latter and still in the idle state can be less than 300 mW, in particular this power requirement is even below 1 mW - instead of the usual 300 to 500 mW.

Thus, it is also possible that the dishwasher 1 is formed without an electrical main switch, but the switching on and off is done solely on the door 3. The device 15 and the downstream electronics 16, 17 can be connected to one another via a data bus so that they can also be spatially separated from one another.

An electronic device 16 that can be woken up by the device 15 during door movement can be a power electronics 16 for which, for example, when waking up, an operating system is loaded. Additionally or alternatively, an electronic control unit 17 can be awakened, which turns on, for example, a touchpad or other controls.

The downstream electronics 16, 17 is offset by the waking in their normal operating condition.

Next, the downstream electronics 16, 17, inter alia, after their waking up a query of the door status ^' make, then to decide, for example, whether a program start can take place immediately and / or that upon detection of an open door 3 switching on a lighting among the other Functions is. This may be an exterior lighting 22. An interior lighting of the washing container 2, for example in the manner of an emotion-Iight, can also be activated as a result of the awakening of an electronic unit 16, 17. Overall, therefore, the door 3 serves as the first link in the interaction with the user. Said sensor, preferably an acceleration sensor 18, remains in an active mode even when the dishwasher 1 is at rest and thus monitors the door 3 for a change in position or acceleration transients P1, P2. The change in position or acceleration can be caused by a pivoting movement of the door 3, such as the acceleration transient through the door lock, which respectively causes a "snap-over" during the opening and closing of the door 3. The sensor 18 independently evaluates the data and sets it at an event 20 a trigger through a serial data transmission or interrupt 21. The connection can be onboard or on spatially separated electronics An event can be an absolute threshold value (positive and / or negative value) in connection with a time or a gradient or the first derivative (acceleration Through this trigger, it is then possible to wake up the other components (referred to herein as electronics 16, 17) that are in optimized Sandby consumption and go into their standby mode or operating mode is the door assembly in particular on the control module or in the door tray, where the Schl Hook engaged (today's position of a Hall sensor). Another possible position would be the door lock at the top of the container frame in order to better evaluate the transients P1, P2 (snap-in door lock). But then the detection of a pivoting movement is no longer possible.

Possible applications are

the awakening of the system master or power module 16, which then go into their operating mode, such as checking the door switch and then possibly turn on the light components such as an emotion light 22, a

Rear wall lighting or the display;

switching on the operating module 17 (omission of the main switch in the case of fully integrated devices).

When a door moves (for example, if the angle changes by more than 3 °, the device switches on and off again after a defined time until a new angle change takes place.

Simultaneous can also be done with Emotionlight 22. In any case, the power consumption of the device in standby mode is minimized. It also results in an immediate readiness of the electronics in door movement. There are savings in elimination of the main switch.

The one or more sensor (s) 18 may or may be different. Also, for example, a Hall sensor is possible.

LIST OF REFERENCE NUMBERS

1 home appliance,

2 washing containers,

3 door,

4 opening direction,

5 device bodies,

6 decorative plate,

7 recessed grip,

8 control panel,

10 cutlery drawer,

1 1 crockery basket,

12 sockets,

13 wall,

14 movable wall,

15 device for recording,

16 downstream electronics,

17 downstream electronics,

18 acceleration sensor,

19 board of the control electronics,

20 event,

21 serial transmission or interrupt,

22 Emotion Light,

Q transverse direction,

V front of the dishwasher, g gravitational acceleration,

P1 first peak (transient),

P2 second peak (transient)

Claims

claims

Dishwasher (1), in particular domestic dishwasher, with a rinsing container (2) for holding dishes, glasses, cutlery or similar items, said rinse container (2) via at least one movable between an open and a closed position door or flap (3) closed and wherein means (15) are provided for detecting whether the door or flap (3) is closed or open,

characterized,

in a standby state of the dishwasher (1), the device (15) is held in a functional state and at least one downstream electronic system (16, 17) in case of door opening and / or closing and / or door movement above a defined threshold value an awakened state in which the downstream electronics (16; 17) is under voltage and performs other functions.

Dishwasher (1) according to claim 1,

characterized,

in that the device (15) comprises at least one acceleration sensor (18) associated with the movable door or flap (3).

Dishwasher (1) according to claim 2,

characterized,

in that the acceleration sensor (18) detects in three axes a relative orientation to the vector of the gravitational acceleration g.

Dishwasher (1) according to one of claims 1 to 3,

characterized,

that under the execution of further functions a query of the door status ^' is.

Dishwasher (1) according to claim 4,

characterized, that upon detection of an open door (3) the switching on of a lighting (22) is among the other functions.

6. Dishwasher (1) according to claim 5,

characterized,

in a standby state of the dishwasher (1), the power requirement of the device (15) is less than 300 mW.

7. Dishwasher (1) according to claim 6,

characterized,

in a standby state of the dishwasher (1), the power requirement of the device (15) is less than 1 mW.

8. Dishwasher (1) according to one of claims 1 to 7,

characterized,

that the downstream electronics comprises power electronics (16).

9. Dishwasher (1) according to one of claims 1 to 8,

characterized,

that the downstream electronics comprises control electronics (17).

10. Dishwasher (1) according to one of claims 1 to 9,

characterized,

in that the downstream electronics (16; 17) comprise external lighting on the dishwasher (1).

1 1. Dishwasher (1) according to one of claims 1 to 10,

characterized,

that the downstream electronics (17) comprises a touchpad and / or further on and off switchable controls.

12. Dishwasher (1) according to one of claims 1 to 1 1,

characterized, that the downstream electronics (16; 17) is put into their normal operating state by the waking up.

Dishwasher (1) according to one of claims 1 to 12,

characterized,

that the downstream electronics (16; 17) in their awake state includes a timed automatic shutdown.

Dishwasher (1) according to one of claims 1 to 13,

characterized,

the dishwasher (1) is designed without an electrical main switch.

Dishwasher (1) according to one of claims 1 to 14,

characterized,

in that the device (15) and the downstream electronics (16, 17) are connected to one another via a data bus.