WO2019120877A1

WO2019120877A1 - Cooking appliance and method for operating same

Info

Publication number: WO2019120877A1
Application number: PCT/EP2018/082339
Authority: WO
Inventors: Günter Gerold; Ralf Grobleben; Tobias Schmidt
Original assignee: BSH Hausgeräte GmbH
Priority date: 2017-12-22
Filing date: 2018-11-23
Publication date: 2019-06-27
Also published as: US20200363071A1; PL3728952T3; EP3728952B1; CN111480034B; DE102017223674A1; EP3728952A1; CN111480034A

Abstract

The invention relates to a cooking appliance (1), comprising a door (6) for closing a cooking chamber (2), a door-opening device (10) for automatically moving the door (6) between a closed position and an open position of the door (6), and a sensing device (20) operatively connected to the door-opening device (10). The sensing device (20) is designed to sense a triggering element separate from the cooking appliance for controlling the door-opening device (10) such that the door can be moved from the closed position into the open position.

Description

Cooking appliance and method for operating the same

description

Background of the invention

The invention relates to a cooking appliance with a door for closing a cooking chamber, with a door opening device for automatically moving the door between a closed and an open position of the door and a detection device in operative connection with the door opening device and a method for automatically moving a door of a cooking appliance.

State of the art

In recent years, especially in the home appliance industry increasingly devices have been developed to increase the user comfort when operating or pressing a domestic appliance. One of these devices, for example, a door opening device for automatically moving the door of a household appliance, in particular a cooking appliance from a closed position to an open position and vice versa.

DE 10 2009 026 670 A1, for example, shows a domestic appliance, in particular a built-in domestic appliance, with a utility space which can be closed with a device door arranged on the appliance front, and with a door opening device by means of which the appliance door can be actuated, wherein the door opening device is provided with a signal generating device for generating an opening signal is in communication, and wherein in the presence of the opening signal, the door opening device automatically opens the appliance door.

The known household appliances and cooking appliances, for example, have the disadvantage that opening a door of the device is not comfortable and may not be sufficiently safe. The description of the prior art is provided to assist in understanding the background of the present invention, and may include items of prior art that are known to one of ordinary skill in the art.

The problem underlying the invention

It is an object of the present invention to at least partially overcome the disadvantages of the prior art, while maintaining the advantages achieved by the prior art, and in particular to provide a cooking appliance improved over the prior art, in which a secure opening of the door can be guaranteed automatically.

Inventive solution

This object is achieved according to the features of the independent claims. Preferred embodiments are in particular the dependent claims.

According to the present invention this can be achieved in a cooking appliance according to the preamble of claim 1, characterized in that the detection device is adapted to detect a separate from the cooking device trigger element for driving the door opening device. As a result, for example, the door is movable from the closed position to the open position.

The cooking appliance may relate in a non-limiting manner to conventional cooking appliances with upper and lower heat radiators and / or hot air systems or to cooking appliances with a steam function or steam support, in addition to a steam generator other heating devices, such as bottom and / or top heat and a Hot air system, can be provided. In addition, the cooking appliance may also be a steamer or steamer, which can heat the food only by the use of steam provided by an internal or external steam generator in a cooking space. Furthermore The cooking appliance can also be designed as a stove in which an oven is combined with a hob. It is understood that the devices mentioned can be provided both as built-in, built-under or stand-alone devices.

The door opening device for automatically moving the door may, for example, comprise an electric drive in the form of a motor. However, it is also conceivable that the door opening device has a mechanical drive, which moves the door from a closed to an open position. Thus, it is clear that any device can be provided as the door opening device, which is able to at least partially move the door between a closed position and an open position or to move. In this context, for example, be provided that the door opening device works hydraulically.

The detection device is a device configured to detect an element located in the vicinity of the detection device. Thus, it is understood that any device capable of detecting an element or body can be provided as the detection device. In this case, the detection device has a predetermined range, within which an element to be detected must be present, so that it is detected in order to trigger further subsequent processes and functions.

The detection device is in operative connection with the door opening device. This is to be understood that the detection device is connected to the door opening device wirelessly and / or wired. Thus, it is clear that, for example, due to this operative connection between the detection device and the door opening device after a detection / detection of an object by the detection device, a signal, in particular electrical signal, can be generated, which is transmitted to the door opening device following the detection process to further processes and Trigger functions. That is, the signal generated by the detection device is used to drive the door opening device so that the door is moved from the closed position to the open position. In this context, it can be provided that the door is transferred, for example by hand and / or automatically from the open position back to the closed position.

According to the invention, it is provided that the detection device is set up in order to detect a trigger element separate from the cooking device for activating the door opening device. Thus, it is clear that the trigger element is an element separate from the cooking device, which is detected by the detection device. The triggering element may be an element or object which is held in the hands of a user of the device according to the invention. For this reason, the detection device may be arranged in particular to detect a trigger element located in front of the cooking appliance. That is, the trigger element is located between the device and the user during a detection process by the detection device.

With the help of the cooking appliance according to the invention can be achieved in a particularly reliable and secure way that the door is opened automatically and at the same time the risk of incorrect operation is minimized.

Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims.

According to a preferred embodiment of the invention, the door may be formed as retractable door, which can be arranged sunk in the open position in a separate from the cooking chamber, in particular formed under the cooking space, receiving space. That is, the retractable door can be moved during an opening operation from the closed position into the open position into a receiving space or retracted. In this context, it may be provided, for example, that a handle arranged on the front side of the door moves from a closed position into an open position during the opening process. That is, the handle can be set to rotate during the opening process by about 90 ° in the direction of a user standing in front of the cooking appliance, so that it can better grip the handle with the door open. The retractable door, in particular, the comfort for a user can be increased since There are no disturbing components between it and the cooking appliance, which could interfere with an operation.

According to a further preferred embodiment of the present invention, it can be provided that the detection device has at least two sensors, in particular infrared sensors. As a result, in particular the security of the detection can be improved. It is understood by those skilled in the art that as detection device or sensors any devices / sensors can be provided by means of which an object can be detected safely before the cooking appliance. It is conceivable that further sensors may be provided to increase safety.

Preferably, the at least two sensors can be arranged on a diaphragm carrier covered by a diaphragm. The arrangement on the screen carrier allows, for example, a user good accessibility. In addition, the sensors arranged on or in the window carrier can be well covered by the panel, so that the design of the cooking appliance can be improved. The diaphragm thus represents a part of the front side or the front of the appliance. It may also be provided that the diaphragm and the diaphragm carrier are made in one piece, which could for example reduce the number of components.

According to yet another preferred embodiment of the present invention, it can be provided that the at least two sensors are arranged at a distance of 300 to 420 mm, preferably from 330 to 390 mm, particularly preferably 360 mm. In particular, the distance may correspond to a maximum width of the triggering element to be detected and / or a maximum detectable distance. That is, the at least two sensors may be arranged at such a distance, so that only in the case a signal from both sensors is simultaneously generated, in which a trigger element is detected with a sufficient width. This makes it possible to ensure in an intelligent manner that it comes only to a triggering operation of the sensors when a suitable triggering element is in front of the cooking appliance or the sensors. In this context, it is also understood that in the case of a general detection device without the use of a plurality of individual sensors, the detection device may be designed such that it must detect a triggering element to be detected over its entire width to a corresponding signal to the door opening device transferred to. That is, the detection device may for example be designed as a one-piece sensor strip, which generates an electrical signal in the said case only when the trigger element is located in front of a predetermined range. As a result, a faulty operation can be further minimized. It should be understood that in the case of multiple sensors, for example, three or more, the foregoing refers to the two outer sensors.

Preferably, the at least two sensors may be symmetrically aligned with respect to a vertical centerline of the cooking appliance and / or the bezel. This makes it possible, for example, simplify the operation for a user, on the one hand, and improve the visual appearance, on the other hand.

According to a further preferred embodiment of the present invention, it can be provided that the diaphragm has a positioning line, which is located substantially in one of the at least two sensors and horizontally extending plane. The positioning line thus represents an aid or marking for a user who assists him in aligning the triggering element with the detection device or the sensors. The positioning line may correspond to the width of the predetermined triggering element and / or the distance between the at least two sensors. By means of the positioning line, a secure alignment of the trigger element can be improved and thus a reliable operation can be ensured.

Preferably, the aperture can be printed with the positioning line. The panel can for example consist of glass or at least partially have glass, which is printed with the positioning line. The printing represents a cost-effective and visually appealing way of realizing the attachment of the positioning line. According to yet another preferred embodiment of the present invention, it may be provided that the door opening device is arranged to move the door from the closed position to the open position after the trigger element is detected by the detection device for a predetermined time. This is understood to mean that the triggering element must be held in front of the detection device or the sensors for a predetermined time, in order to enable activation of the door opening device. In other words, an electrical signal is only generated by the detection device or the sensors when they detect the triggering element for a predetermined time without interruption. This can reduce the risk of incorrect operation. That is, a possible misuse by, for example, passing children, which may take less than the specified time can be avoided thereby. Thus, it can be clearly seen that this is practically a controlled action is generated, which can prevent accidental opening of the door. In this context, it may be particularly preferred that the entire detection device or the at least two sensors are triggered simultaneously, whereby the safety can be further increased.

Preferably, the separate trigger element may be a food support, in particular a baking tray, grate or the like, which may be present as an accessory in the respective cooking appliance and may be used for baking / cooking of food. In this way it can be ensured in a reliable manner that there is a sufficiently large safety distance between the cooking appliance and the user. Thus, the user standing in front of the cooking appliance is protected from accidentally entering the area of an opening door, so that the risk of injury can thereby be minimized.

An inventive method for automatically moving a door of a cooking appliance, which may be embodied as described above, may comprise the following steps. In one step, by the detection device, a separate from the cooking device trigger element are detected after a user has positioned the same in front of the detection device. Following detection, the door opening device may be moved to move the door from a closed position to an open position upon detection of the trigger element for a predetermined time be controlled. That is, only after a predetermined time, within which the trigger element must be held without interruption in front of the detection device, so that the detection device triggers, the door opening device is driven by means of an electrical signal generated by the detection device, so that only after this time has elapsed Opening the door is done. This can be ensured in a very secure manner that the door is opened only when this is desired by the user.

It can preferably be provided that, if the detection device has at least two sensors, the door opening device for moving the door is only activated when the at least two sensors are triggered by the trigger element simultaneously and for a predetermined time. In this way, for example, it can be ensured that the triggering element provided for this purpose, for example in the form of a baking sheet, is used. In addition, a parental control can be realized in a comfortable way, since both sensors must be triggered simultaneously and for a predetermined time.

In other words, a driving of the door opening device thus does not take place if at least one of the following conditions is met:

• Falling below the predetermined time for the detection of the trigger element by the detection device;

• Detecting only one of the at least two sensors or only a part of the detection device, which is smaller than a predetermined portion or area thereof;

Further advantages and features of the invention will become apparent from the claims, the figures and the description of the figures. The features and combinations of features mentioned above in the description as well as the features and feature combinations mentioned below in the description of the figures and / or shown alone in the figures can be used not only in the respective combinations indicated, but also in other combinations or in isolation, without the scope of To leave invention.

Brief description of the drawings The above and further features of the present invention will now be described in detail with reference to a particular embodiment thereof, which are illustrated by the accompanying drawings, and which are given by way of illustration only, and thus are not limiting to the present invention. In the drawing show:

Figure 1 is a schematic representation of a cooking appliance according to the invention in a perspective view without aperture.

Figure 2 is a schematic representation of a cooking appliance according to the invention in a perspective view with mounted aperture.

3 is a plan view of the panel of the cooking appliance according to the invention of Fig. 2nd

It should be understood that the appended drawings are not necessarily to scale, presenting a somewhat simplified representation of various preferred features which serve to illustrate the principles of the invention. The specific design features of the present invention as disclosed herein, including e.g. specific dimensions, orientations, locations and shapes will be determined, in part, by the dedicated registration and working environment.

In the figures, identical or functionally identical elements are provided with the same reference numerals.

Detailed description of the figures

An embodiment of the present invention will be described below in detail with reference to the accompanying drawings.

1 shows a schematic representation of a cooking appliance 1 in a perspective view according to an embodiment of the present invention without a diaphragm. The cooking appliance 1 has a through a Garraummuffel (not shown) io

limited cooking space 2 with a cooking chamber opening (not shown), which is closed by a door 6. The door 6 has a handle 8 for manual opening and / or closing. Above the door 2, an aperture carrier 12 is provided in an upper portion, to which a diaphragm (not shown) can be attached. In each of the left and right sections, an infrared sensor 21 is mounted in the shade support 12 to detect a triggering element (not shown) disposed in front of the sensors 21, which is separate from the cooking device 1. The triggering element may be, for example, a baking sheet, rust or the like.

The two sensors 21, which are arranged at a distance of approximately 360 mm, are in operative connection with a door opening device 10. The door opening device 10 in the exemplary embodiment has a drive in the form of an electric motor, which is able to move the door 6 automatically from a closed position to an open position. It is also conceivable that the door 6 can be automatically transferred from the open position to the closed position by, for example, a button (not shown) is pressed.

The opening operation of the door 6 is started by the trigger element in the form of a baking sheet for a predetermined time, for example 3 seconds, held simultaneously in front of both sensors. After expiration of the predetermined time is transmitted by an electric signal generated by the detection device 20 and the sensors 21 to the door opening device 10, after which the door 6 automatically starts to open. Only by the direct arrangement of the baking tray in front of the sensors for a predetermined time and the simultaneous triggering of the two sensors opening of the door 6 is achieved. In the illustrated embodiment, the door 6 is retracted or sunk in a arranged below the cooking chamber 2 receiving space 4. After reaching the fully open position of the door 6, this is substantially completely within the receiving space 4 except for the touchable area of the handle 8.

Fig. 2 shows a schematic representation of the cooking appliance according to the invention in a perspective view with mounted aperture 14. Behind the aperture 14 are as shown in Fig. 1, the two sensors in the form of infrared sensors (not shown in Fig. 2). At the user-facing front side of the diaphragm 14 is located in a central region of a positioning line 16, which is substantially in one Level is lying, which passes horizontally through the two sensors. By means of the positioning line 16, it is possible for a user to align the trigger element in the form of the baking tray exactly in front of the sensors, so that both sensors can be triggered simultaneously for a predetermined time after the baking tray has been attached, in order to start the door opening operation with the aid of the door opening device. The

Positioning line 16 has a width corresponding to the baking sheet, which is usable for the cooking device 1.

FIG. 3 shows a plan view of the panel 14 of the cooking appliance according to the invention from FIG. 2. In addition, the center line M is shown in FIG. 2, which divides the panel 14 into two areas of equal size. In the right area of the panel 14, a display 18 is provided at the same height of the positioning line 16, by means of which an opening of the door can be displayed. It can also be provided that the display 18 is designed as a touch sensor, by means of which the door can be moved from an open position to the closed position.

LIST OF REFERENCE NUMBERS

1 cooking appliance

2 cooking space

4 recording room

6 door

8 handle

10 door opening device

12 panel carrier

14 aperture

16 positioning line

18 display

20 detection device

21 sensors

M midline

Claims

A cooking appliance (1) having a door (6) for closing a cooking chamber (2), with a door opening device (10) for automatically moving the door (6) between a closed and an open position of the door (6) and a detection device (6). 20) in operative connection with the door opening device (10), characterized in that the detection device (20) is arranged to detect a separate from the cooking device trigger element for driving the door opening device (10).

2. Cooking appliance (1) according to claim 1, characterized in that the door (6) is designed as a retractable door, which in one of the cooking chamber (2) separated, in particular under the cooking chamber (2) formed receiving space (4) the open position is arranged sunk.

3. cooking appliance (1) according to claim 1 or 2, characterized in that the detection device (20) has at least two sensors (21), in particular infrared sensors.

4. cooking appliance (1) according to claim 3, characterized in that the at least two sensors (21) on a through a diaphragm (14) covered diaphragm carrier (12) are arranged.

5. Cooking appliance (1) according to claim 3 or 4, characterized indicates that the at least two sensors (21) are arranged at a distance of 300 to 420 mm, preferably from 330 to 390 mm, particularly preferably 360 mm.

6. Cooking appliance (1) according to one of claims 3 to 5, characterized indicates that the at least two sensors (21) are aligned symmetrically with respect to a vertically extending center line (M).

7. cooking appliance (1) according to one of claims 4 to 6, characterized indicates that the diaphragm (14) has a positioning line (16), which lies substantially in one of the at least two sensors (21) horizontally extending plane.

8. cooking appliance (1) according to claim 7, characterized in that the diaphragm (14) with the positioning line (16) is printed.

9. cooking appliance (1) according to any one of the preceding claims, characterized in that the door opening device is adapted to move the door (6) from the closed position to the open position after the trigger element for a predetermined time from the detection device (20 ) is detected.

10. cooking appliance (1) according to one of the preceding claims, characterized in that the separate triggering element is a food support, in particular a baking sheet, rust or the like.

1 1. A method for automatically moving a door (6) of a cooking appliance (1) according to the preceding claims, the cooking appliance (1) comprising a door (6) for closing a cooking chamber (2), a door opening device (10) for automatically moving the Door (6) between a closed and an open position of the door (6) and a detection device (20) in operative connection with the door opening device (10), comprising the steps:

• Detecting, by the detection device (20), one of the cooking device (1) separate triggering element;

Driving the door opening device (10) to move the door (6) from a closed position to an open position after detecting the trigger element for a predetermined time.

12. The method of claim 1 1, wherein, when the detection device (20) has at least two sensors (21), the door opening device (10) for moving the door (6) is driven, when the at least two sensors (21) by the trigger element be triggered simultaneously.