EP2690925A2 - Hotplate device - Google Patents

Abstract

The device (12a) has a housing unit (14a) comprising a housing module (16a) arranged at lower sides of a hob plate (18a) in an operating mode. An operator interface unit (22a) comprises touch-sensitive input elements (34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a, 74a) and display elements (32a, 42a, 52a, 62a, 72a) e.g. LED segment display. The display elements and the touch-sensitive input elements are arranged outside of the housing units. The interface unit is arranged outside of the housing unit. The display elements and the input elements are arranged in a short region of the hob plate.

Description

The invention relates to a hob device according to the preamble of claim 1.

From the DE 198 17 195 C1 In particular, a hob with a touch-sensitive operator interface unit is known, wherein touch-sensitive input elements are arranged outside a housing unit.

The object of the invention is in particular to provide a generic device with improved properties in terms of space utilization and / or protection against high temperatures. The object is achieved by the features of claim 1, while advantageous embodiments and modifications of the invention can be taken from the dependent claims.

The invention is based on a cooktop device, in particular an induction cooktop device, with at least one housing unit which has at least one cooktop plate and at least one housing module, which is arranged at least in an operating state on an underside of the cooktop plate, and with at least one user interface unit, the at least one touch-sensitive Having input element and at least one display element.

It is proposed that at least the one display element and at least the one touch-sensitive input element are arranged outside the housing unit. A "housing unit" is to be understood in particular as meaning a unit which is intended to form and at least substantially enclose an operating space, in which preferably at least heating elements, in particular induction heating elements, and / or power electronics, in particular changeover and / or rectifiers Hob device are arranged. In particular, the housing unit forms a holding unit, which is provided to hold components of the hob device, in particular heating elements and / or power electronics, preferably to wear. A "cooking field plate" is to be understood in particular as a plate unit on which cooking utensils, in particular a pot, a pan and / or the like, preferably for heating, can be placed. In particular, the cooktop panel has a high temperature resistance, in particular at least up to 100 ° C, advantageously at least up to 200 ° C, preferably at least up to 300 ° C on. In particular, the cooktop panel has a linear low thermal expansion coefficient, in particular less than 1 × 10 ^-6 m / (m · K), advantageously less than 0.5 × 10 ^-6 m / (m × K), preferably less than 0.1 • 10 ^-6 m / (m • K), up. Preferably, the cooktop panel is formed from at least one at least glass-like material, in particular borosilicate glass and / or glass ceramic. The cooktop panel preferably has a transparency of at most 30%, advantageously at most 10%, in particular at least 1%, advantageously at least 5%. A "plate unit" should be understood in particular to mean a unit which has a thickness which corresponds to a maximum of 50%, in particular a maximum of 20%, advantageously a maximum of 10%, preferably a maximum of 5%, of a length and / or a width of the unit. In particular, it has a maximum thickness of 8 mm, advantageously not more than 6 mm, in particular at least 2 mm, preferably at least 3 mm. The plate unit preferably has at least one, preferably at least two, in particular mutually opposite, sides, which have a flat, in particular smooth, surface and advantageously form at least 30%, in particular at least 50%, advantageously at least 80%, of an entire surface of the plate unit. A housing module should in particular be understood as meaning a single component or a group of components of the housing unit which are different from a hob plate. Preferably, the housing module forms a housing shell. In particular, the housing module is intended to be closed by the hob plate to an at least substantially closed housing. In particular, the housing module has at least one opening which serves for a ventilation and / or cooling. In particular, the housing module is fixed in an operating state on the underside, in particular glued. Under a "bottom" of the hob plate should be understood in particular one side of the hob plate, which faces away from an operator in the operating state, or which is opposite to a side of the hob plate, which is intended to receive cooking utensils for heating. Advantageously, the underside receives at least 20%, advantageously at least 30%, preferably at least 40%, of a surface of the hob plate. In particular, the housing unit is provided in a Operating state at least substantially, in particular at least 50%, advantageously at least 70%, preferably at least 80%, in particular completely to be sunk to the hob plate in a mounting hole of a countertop. An "operator interface unit" is to be understood as meaning, in particular, an entirety of all operating elements which are accessible to an operator in at least one standard operating state and, preferably, visible display elements of the cooktop device. Advantageously, the operator interface unit has at least one carrier board which is provided to carry at least two, in particular at least five, advantageously at least eight, preferably at least sixteen, input elements and / or display elements. In particular, connecting lines which connect the input and / or display elements to the control unit should not be understood as belonging to the user interface. An "input element" is to be understood in particular to mean an element which is intended to convert an operator interaction into a preferably electrical signal that can be interpreted by a control unit. A "touch-sensitive input element" is to be understood in particular as an input element which is provided for at least one, preferably gentle, in particular unpressurized, touch, and / or approach of an object, in particular a body part, preferably a finger, of an operator to a contact surface , in particular within a distance of not more than 10 cm, in particular not more than 3 cm, advantageously not more than 1 cm, preferably not more than 0.5 cm, to convert into a signal which can be interpreted by the control unit. The touch-sensitive input element preferably reacts to an approach independently of a direct contact and / or pressure, in particular through a contact surface. Advantageously, at least 40%, in particular at least 60%, advantageously at least 80%, preferably at least 90%, of the input elements are designed as touch-sensitive input elements. A "display element" is to be understood in particular an element which is intended to convert signals of a control unit into optical, acoustic and / or tactile signals, which are intended to be perceived by an operator. The display element preferably has at least one luminous element, that is to say a light-generating element which in particular converts electrical energy into light, in particular an LED, advantageously an OLED. In particular, the display element is designed as a group of luminous elements, for example as a pixel display and / or as a segment display, which has a character display, in particular a Numeric display, forms. Below that, a display element or an input element "outside" the housing unit is arranged, should be understood in particular that the display element or the input element is arranged outside of the unit formed by the housing or at least substantially enclosed operating space. A "control unit" is to be understood as meaning, in particular, an electronic unit which is preferably provided to control and / or regulate at least the operating unit and, preferably, heating elements and / or power electronics. The control unit preferably comprises a computing unit and, in particular in addition to the computing unit, a memory unit with a control and / or regulating program stored therein, which is intended to be executed by the computing unit. By "provided" is intended to be understood in particular specially programmed, designed and / or equipped. In particular, a long-life arrangement can be achieved. In particular, a temperature load of the at least one display element and / or the at least one touch-sensitive input element can be minimized. In particular, high security can be achieved by arranging at least one touch-sensitive input element away from heat sources. In particular, an increased space in an interior of the housing unit can be achieved, whereby indirectly installation space can be saved.

Advantageously, it is proposed that the operator interface unit is arranged outside the housing unit, at least for the most part, in particular at least 30%, advantageously at least 50%, particularly advantageously at least 70%, preferably at least 90%. The fact that the operator interface unit is arranged for the most part outside the housing unit should be understood to mean at least 30%, in particular at least 50%, advantageously at least 70%, preferably at least 90%, of the input elements of the operator interface unit and / or at least 30%, in particular at least 50%, preferably at least 70%, preferably at least 90%, of the display elements of the operator interface unit are arranged outside the housing unit. In particular, a high durability of the user interface unit can be achieved. In particular, a high level of safety and / or an optimized space utilization can be achieved. Furthermore, it is proposed that at least one display element and at least one touch-sensitive input element are arranged in a vicinity of the hob plate. A "near zone" of the cooktop panel is to be understood in particular to mean an area which surrounds the cooktop panel with a maximum distance of 10 cm, in particular a maximum of 5 cm, advantageously a maximum of 2 cm, preferably a maximum of 0.5 cm. In particular, an intuitive operation can be achieved.

It is also proposed that the operator interface unit is arranged at least for the most part, in particular at least 60%, advantageously at least 80%, preferably at least 90%, on an underside of the hob plate. In particular, the operator interface unit, viewed from an operator, is located behind the cooktop panel. In particular, the operator interface unit is glued to the underside. In particular, at least a part of the display elements and / or input elements is connected to the underside. In particular, good protection of the operator interface unit can be achieved. In particular, a component-saving design can be achieved.

Furthermore, it is proposed that the cooktop panel has at least one recess on its underside, which is intended to receive at least one part, in particular at least 10%, advantageously at least 50%, preferably at least 80%, of the operator interface unit. In particular, the recess has a depth of at least 0.1 mm, in particular at least 1 mm, advantageously at least 2 mm. In particular, the recess is intended to receive at least one display element. In particular, the recess has a depth which corresponds to a thickness of the hob plate. By including a part of the operator interface in the recess, it should be understood, in particular, that the part of the operator interface is arranged in an imaginary, smallest convex completion of the hob plate. In particular, a small gap between hob plate and worktop can be achieved. In particular, improved protection can be achieved.

It is advantageously proposed that the at least one recess is provided to completely accommodate the operator interface unit. In particular, the cooktop panel has a plurality of recesses, which are each provided to a part the operator interface unit, in particular in each case an interface module to record. In particular, the operator interface unit is distributed completely over a plurality of recesses. In particular, a reduction of work steps can be achieved, since only a large recess instead of a plurality of small recesses must be made.

It is also proposed that the operator interface unit is arranged at least partially, in particular at least 5%, advantageously at least 10%, particularly advantageously at least 20%, preferably at least 40%, within the housing unit, ie within the operating room. The fact that the user interface unit is arranged partially within the housing unit is to be understood to mean at least 5%, in particular at least 10%, advantageously at least 20%, preferably at least 40%, of the input elements of the operator interface unit and / or at least 5%, in particular at least 10%, advantageously at least 20%, preferably at least 40%, of the display elements of the operator interface unit are arranged within the housing unit. In particular, good spatial separation between input elements belonging to different interface modules can be achieved. An "interface module" is to be understood in particular a largest subset of the input elements and display elements of the user interface, which are intended to influence in cooperation with the control unit only a particular cooking zone or display their data.

Furthermore, it is proposed that the operator interface unit is at least partially disposed in a separate bar, which is arranged in a vicinity of the hob plate. In particular, at least one display element and at least one touch-sensitive input element are arranged in the separate strip. In particular, the strip is integrally formed on the hob plate and, in particular, has an at least substantially edge-free transition thereto. Advantageously, the strip is formed by at least one material, in particular a glass, a metal or a plastic which differs from a material of the cooktop plate. In particular, a cost-saving design can be achieved. In particular, increased comfort can be achieved. In particular, a clear distinction of hob plate and operator interface can be made. It is also proposed that the operator interface unit has at least two, in particular at least three, advantageously at least four, interface modules which are each arranged in a near zone of a heating element assigned to the corresponding interface module. Each interface module of the operating unit is preferably arranged in each case in a vicinity of a heating element assigned to the corresponding interface module. A "near zone" of a heating element is to be understood, in particular, as an area around the heating element, which is spaced apart by a maximum of 30 cm, in particular a maximum of 20 cm, advantageously a maximum of 15 cm. In particular, an intuitive operation can be achieved.

Further advantages emerge from the following description of the drawing. In the drawings, embodiments of the invention are shown. The drawing, the description and the claims contain numerous features in combination. The person skilled in the art will expediently also consider the features individually and combine them into meaningful further combinations.

Fig. 1

ein erfindungsgemäßes Kochfeld,

Fig. 2

einen Schnitt entlang der Linie II-II in Figur 1,

Fig. 3

einen Schnitt analog Figur 2 eines ersten alternativen erfindungsgemäßen Kochfelds,

Fig. 4

einen Schnitt analog Figur 2 eines zweiten alternativen erfindungsgemäßen Kochfelds,

Fig. 5

einen Schnitt analog Figur 2 eines dritten alternativen erfindungsgemäßen Kochfelds,

Fig. 6

einen Schnitt analog Figur 2 eines vierten alternativen erfindungsgemäßen Kochfelds,

Fig. 7

ein fünftes alternatives erfindungsgemäßes Kochfeld und

Fig. 8

einen Schnitt analog Figur 2 eines sechsten alternativen erfindungsgemäßen Kochfelds.

In schematic representations:

Fig. 1

an inventive hob,

Fig. 2

a section along the line II-II in FIG. 1 .

Fig. 3

a section analog FIG. 2 a first alternative cooking hob according to the invention,

Fig. 4

a section analog FIG. 2 a second alternative cooking hob according to the invention,

Fig. 5

a section analog FIG. 2 a third alternative cooking hob according to the invention,

Fig. 6

a section analog FIG. 2 a fourth alternative cooking hob according to the invention,

Fig. 7

a fifth alternative inventive hob and

Fig. 8

a section analog FIG. 2 a sixth alternative cooking hob according to the invention.

FIG. 1 shows a cooktop 10a designed as an induction cooktop with a cooktop device 12a designed as an induction cooktop device. The cooktop apparatus 12a has a housing unit 14a formed by a housing module 16a and a cooktop panel 18a. The housing module 16a forms a stepped housing shell, which is arranged on an underside 20a of the hob plate 18a. The housing unit 14a forms an operating room 15a. Four heating elements 30a, 40a, 50a, 60a designed as induction heating elements and power or supply electronics are arranged in the operating space 15a. Furthermore, the hob device 12a has an operator interface unit 22a. The operator interface unit 22a has nine touch-sensitive input elements 34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a, 74a and five display elements 32a, 42a, 52a, 62a, 72a. Four of the display elements 32a, 42a, 52a, 62a are formed as an LED segment display and provided to indicate a heating power level of an associated heating element 30a, 40a, 50a, 60a. A fifth display element 72a is designed as an LED and is provided to indicate a switch-on state of the hob 10a. Eight of the touch-sensitive input elements 34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a are provided to allow an operator to increase and decrease a heating power level of an associated heating element 30a, 40a, 50a, 60a. A ninth of the touch-sensitive input elements 74a is provided to allow an operator to turn on or off the hob 10a. The touch-sensitive input elements 34a, 36a, 44a, 46a, 54a, 56a, 64a, 74a and the display elements 32a, 42a, 52a, 62a, 72a are disposed on a common circuit board 26a designed to provide stability to the operator interface unit 22a. The operator interface unit 22a is disposed on a front side of the cooktop panel 18a. The input elements 34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a and the display elements 32a, 42a, 52a, 62a form four interface modules 31a, 41a, 51a, 61a, each of the different ones of the heating elements 30a, 40a, 50a, 60a assigned.

The operator interface unit 22a, together with all the touch-sensitive input elements 34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a, 74a and all display elements 32a, 42a, 52a, 62a, 72a, is disposed outside the housing unit 14a. The operator interface unit 22a is disposed between the cooktop panel 18a and a worktop 24a. The operator interface unit 22a is together with all touch-sensitive input elements 34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a, 74a and all display elements 32a, 42a, 52a, 62a, 72a are arranged in a vicinity of the hotplate plate 18a. The operator interface unit 22a is arranged on the underside 20a of the hob plate 18a ( FIG. 2 ). The operator interface unit 22a is adhered to the underside 20a of the cooktop panel 18a. Disposed on the cooktop panel 18a are spacers intended to provide sufficient clearance between the worktop 24a and the cooktop panel 18a to avoid damaging the operator interface unit 22a. The operator interface unit 22a has a distance of 1 cm from a front edge of the cooktop panel 18a. The housing module 16a is substantially sunk in a mounting opening 25a of the work surface 24a.

In the FIGS. 3 to 8 Six further embodiments of the invention are shown. The following descriptions are essentially limited to the differences between the embodiments, with respect to the same components, features and functions on the description of the other embodiments, in particular the FIGS. 1 and 2 , can be referenced. To distinguish the embodiments, the letter a in the reference numerals of the embodiment in the FIGS. 1 and 2 by the letters b to g in the reference numerals of the embodiments of the FIGS. 3 to 8 replaced. With regard to identically designated components, in particular with regard to components with the same reference numerals, can in principle also to the drawings and / or the description of the other embodiments, in particular the FIGS. 1 and 2 , to get expelled.

FIG. 3 shows a hob 10b with a hob device 12b. Hob device 12b includes a housing unit 14b having a cooktop panel 18b and a housing module 16b and an operator interface unit 22b. The operator interface unit 22b has touch-sensitive input elements 34b and display elements 32b. The cooktop panel 18b has on its underside 20b recesses 38b, which are each provided to receive the display elements 32b. Thus, a gap between the cooktop panel 18b and a worktop 24b can be reduced to the thickness of a circuit board 26b of the operator interface unit 22b carrying the input members 34b and the display members 32b, since the touch-sensitive input members 34b are formed as printed circuits on the circuit board 26b.

FIG. 4 shows a hob 10c with a hob device 12c. The cooktop apparatus 12c includes a housing unit 14c having a cooktop panel 18c and a housing module 16c and an operator interface unit 22c. The operator interface unit 22c has touch-sensitive input elements 34c and display elements 32c. The cooktop panel 18c has on its underside 20c a recess 38c which is provided to receive the operator interface unit 22c completely, including the display elements 32c and the input elements 34c. The operator interface unit 22c is embedded in the recess 38c with transparent adhesive. Thus, a gap between the cooktop panel 18c and a worktop 24c can be minimized.

FIG. 5 shows a hob 10d with a hob device 12d. Hob device 12d includes a housing unit 14d having a cooktop panel 18d and a housing module 16d and an operator interface unit 22d. The operator interface unit 22d has touch-sensitive input elements 34d, 44d and display elements 32d, 42d. The operator interface unit 22d is partially disposed inside and partially outside the housing unit 14d. Four input elements 34d of nine input elements 34d, 44d are disposed within the housing unit 14d. Furthermore, two display elements 42d of five display elements 32d, 42d are arranged within the housing unit 14d. Accordingly, five input elements 44d of nine input elements 34d, 44d and three display elements 32d of five display elements 32d, 42d are arranged outside the housing unit 14d. This allows for placement of additional components 28d on a bottom of a common circuit board 26d of the operator interface unit 22d within the housing unit 14d.

FIG. 6 shows a hob 10e with a hob device 12e. Hob device 12e includes a housing unit 14e having a cooktop panel 18e and a housing module 16e and an operator interface unit 22e. The operator interface unit 22e is analogous to FIG. 4 educated. The cooktop panel 18e has on its underside 20e a recess 38e which is provided to receive the operator interface unit 22e completely, including display elements 32e, 42e and input elements 34e, 44e.

FIG. 7 shows a hob 10f with a hob device 12f. Hob device 12f includes a housing unit 14f having a cooktop panel 18f and a housing module 16f and an operator interface unit 22f. The operator interface unit 22f has four interface modules 31f, 41f, 51f, 61f each having a circuit board with a display element 32f, 42f, 52f, 62f and two input elements 34f, 36f, 44f, 46f, 54f, 56f, 64f, 66f. The operator interface unit 22f has another circuit board carrying a display element 72f and an input element 74f, which is intended to cause an on or off or to signal an on state. The cooktop panel 18f has on its underside 20f five recesses 38f, 48f, 58f, 68f, 78f, which are provided, in each case one of the interface modules 31f, 41f, 51f, 61f or the circuit board with the on-off switching interface completely record. The operator interface unit 22f is located completely outside the housing unit 14f. The operator interface unit is completely received in the recesses 38f, 48f, 58f, 68f, 78f. All of the interface modules 31f, 41f, 51f, 61f are respectively disposed in a vicinity of a heating element 30f, 40f, 50f, 60f associated with the corresponding interface module 31f, 41f, 51f, 61f on right and left sides of the cooking field plate 18f.

FIG. 8 shows a hob 10g with a hob device 12g. The cooktop apparatus 12g has a housing unit 14g with a cooktop panel 18g and a housing module 16g and an operator interface unit 22g. The operator interface unit 22g is arranged in a separate bar 80g. The strip 80g is formed as a strip of a low-temperature glass. The strip 80g has on its underside a recess 82g intended to receive the operator interface unit 22g. The bar 80g conforms to the hob plate 18g. Alternatively, it is conceivable that a sealant, for example silicone, is inserted between the strip 80g and the hob plate 18g.

In further embodiments, non-transparent cooktop panels, inter alia made of composite material, are conceivable, wherein recesses in the cooktop panel, which are intended to receive display elements of an operator interface unit, are formed as holes. The display elements are in this case preferably cast with a transparent material, in particular a resin in the holes.

Furthermore, it is conceivable that input elements and / or display elements, in particular OLED lighting elements are applied as printed electronics on a back of a hob plate, thereby dispensing with additional processing steps, such as placement of a circuit board and / or creation of a recess in the hob plate can.

In further embodiments, it is conceivable that an operator interface unit extends to or extends beyond an edge of the cooktop panel, wherein an protruding piece is advantageously covered with a suitable strip.

reference numeral 10 hob 52 display element 12 Hob device 54 input element 14 housing unit 56 input element 15 operating room 58 recess 16 housing module 60 heating element 18 Hotplate 61 Interface Module 20 bottom 62 display element 22 Operator interface unit 64 input element 24 countertop 66 input element 25 mounting hole 68 recess 26 circuit board 72 display element 28 component 74 input element 30 heating element 78 recess 31 Interface Module 80 strip 32 display element 82 recess 34 input element 36 input element 38 recess 40 heating element 41 Interface Module 42 display element 44 input element 46 input element 48 recess 50 heating element 51 Interface Module

Claims (10)

Hob device, in particular induction hob device, with at least one housing unit (14a-g) having at least one hob plate (18a-g) and at least one housing module (16a-g), at least in an operating condition on a bottom (20a-g) of the hob plate (18a-g) and at least one operator interface unit (22a-g) comprising at least one touch-sensitive input element (34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a, 74a; 34b; 34c; 34d, 44d 34e, 44e, 34f, 36f, 44f, 46f, 54f, 56f, 64f, 66f, 74f, 34g) and at least one display element (32a, 42a, 52a, 62a, 72a, 32b, 32c, 32d, 42d, 32e, 32e; 42e; 32f, 42f, 52f, 62f, 72f;), characterized in that at least said one display element (32a-g, 42a, 52a, 62a, 72a; 42f, 52f, 62f, 72f;) and at least said one touch-sensitive Input member (34a-g, 36a, 44a, 46a, 54a, 56a, 64a, 66a, 74a, 36f, 44f, 46f, 54f, 56f, 64f, 66f, 74f) outside the housing unit (14a-g) are arranged , Hob device according to claim 1, characterized in that the operator interface unit (22a-g) at least substantially outside of the housing unit (14a-g) is arranged. Hob device according to one of the preceding claims, characterized in that at least one display element (32a, 42a, 52a, 62a, 72a; 32b; 32c; 32d, 42d; 32e, 42e; 32f, 42f, 52f, 62f, 72f;) and at least one touch-sensitive input element (34a, 36a, 44a, 46a, 54a, 56a, 64a, 66a, 74a; 34b; 34c; 34d, 44d; 34e, 44e; 34f, 36f, 44f, 46f, 54f, 56f, 64f); 66f, 74f, 34g) are disposed in a vicinity of the cooking field plate (18a-g). Hob device according to one of the preceding claims, characterized in that the operator interface unit (22a-g) at least substantially on a bottom (20a-g) of the hob plate (18a-g) is arranged. Cooking field device according to one of the preceding claims, characterized in that the hob plate (18b; 18c; 18e; 18f) has on its underside (20b; 20c; 20e; 20f) at least one recess (38b; 38c; 38e; 38f, 48f, 58f, 68f, 78f) arranged to receive at least a portion of the operator interface unit (22b; 22c; 22e; 22f). Hob device according to claim 5, characterized in that the at least one recess (38c; 38e; 38f, 48f, 58f, 68f, 78f) is arranged to completely receive the operator interface unit (22c; 22e; 22f). Hob device according to one of the preceding claims, characterized in that the operator interface unit (22d; 22e) is arranged at least partially within the housing unit (14d; 14d). Hob device according to one of the preceding claims, characterized in that the operator interface unit (22g) is at least partially disposed in a separate strip (80g) which is arranged in a vicinity of the hob plate (18g). Hob device according to one of the preceding claims, characterized in that the user interface unit (22f) has at least two interface modules (31f, 41f, 51f, 61f) each in a vicinity of a respective interface module (31f, 41f, 51f, 61f) associated heating element (30f, 40f, 50f, 60f) are arranged. Hob with a hob device (12a-g) according to any one of the preceding claims.

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