HOUSEHOLD APPLIANCE WITH A USER INTERFACE

Abstract

Household appliance (2) with a user interface (20) comprising: •—a display (64), •—a switch element (56) associated to said display (64) comprising at least one capacitive sensing element (58) with a sensing surface, •—a capacitive sensing circuit (62), •—a control unit (68) connected to said display (64) and to said capacitive sensing circuit (62), configured to control said household appliance (2) and/or said display (64) in function of a signal received from said capacitive sensing circuit (62) after a user interaction on the capacitive sensing element (58) of said switch element (56), whereby said capacitive sensing element (58) is built as a PCB (60) where the capacitive sensing circuit (62) is provided.

Claims

1. Household appliance (2) with a user interface (20), comprising: a display (64), a switch element (56) associated to said display (64), comprising at least one capacitive sensing element (58) with a sensing surface, a capacitive sensing circuit (62), a control unit (68) connected to said display (64) and to said capacitive sensing circuit (62), configured to control said household appliance (2) and/or said display (64) in function of a signal received from said capacitive sensing circuit (62) after a user interaction on the capacitive sensing element (58) of said switch element (56), characterized in that said capacitive sensing element (58) is built as a PCB (60) where the capacitive sensing circuit (62) is provided.

2. The household appliance (2) according to claim 1, whereby said display (64) and said capacitive sensing element (58) are respectively arranged on a display carrier element (54).

3. The household appliance (2) according to claim 2, whereby said display carrier element (54) comprises at least one a recess (94), wherein at least one capacitive sensing element (58) is placed in said recess (94).

4. The household appliance (2) according to claim 3, whereby the surface of said capacitive sensing element (58) is arranged flushing with the external surface of said display carrier element (54).

5. The household appliance (2) according to claim 2, whereby said display (64) and/or said switching element (56) are mechanically connected to said display carrier element (54).

6. The household appliance (2) according to claim 1, comprising a display main board (44) to which said display (64) and said switch element (56) are connected.

7. The household appliance (2) according to claim 6, whereby said display main board (44) comprises at least one additional switch element (72) and/or at least one additional display element.

8. The household appliance (2) according to claim 1, comprising light elements (82) for said display (64).

9. The household appliance (2) according to claim 8, whereby said light elements (82) are associated with openings provided on a display carrier element (54), said openings being configured to see the light beams of said light elements (82) from the front side of said user interface (20).

10. The household appliance (2) according to claim 9, whereby said openings on said display carrier element (54) define one or more 7-digit displays (64) visible from the front of said user interface (20).

11. The household appliance (2) according to claim 2, comprising a secondary board (50), whereby said secondary board (50) is at least partially covered by/at least partially arranged inside said display carrier element (54).

12. The household appliance (2) according to claim 8, whereby said respective light elements (82) are built as LEDs.

13. The household appliance (2) according to claim 1, whereby said display (64) comprises an LCD and/or touch display.

14. The household appliance (2) according to claim 1, whereby said capacitive sensing element (58) and at least partially said display (64) are respectively at least partially covered by an at least partially transparent film (70).

15. The household appliance (2) according to claim 1, whereby said respective capacitive sensing element (58) at least partially surrounds a display region.

16. The household appliance (2) according to claim 1, whereby said capacitive sensing element (58) comprises a recessed region (100) encircling a portion (104) of said display (64).

17. The household appliance (2) according to claim 1, whereby said display (64) is built as a 7-digit display.

18. The household appliance (2) according to claim 1, whereby at least two capacitive sensing elements (58) are provided.

19. The household appliance (2) according to claim 1 which is built as a refrigerating appliance or refrigerating/freezing appliance.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Further features and advantages of the present invention shall become clearer from the following detailed description of some of its preferred embodiments, made with reference to the attached schematic drawings and given as an indication and not for limiting purposes.

[0037] In particular, the attached drawings are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification. The drawings together with the description explain the principles of the invention. In the drawings, corresponding characteristics and/or components are identified by the same reference numbers. In these drawings:

[0038] FIG. 1 shows a household appliance with a user interface in a perspective view;

[0039] FIG. 2 shows the user interface in an exploded view;

[0040] FIG. 3 shows components of the user interface in a exploded view; and

[0041] FIG. 4 shows components of the user interface in an assembled state.

[0042] Same parts are labelled in all figures with identical reference numerals.

DETAILED DESCRIPTION OF THE INVENTION

[0043] In FIG. 1, a household appliance 2 is shown which is built as a combined refrigerating and freezing appliance with a casing 6. Household appliance 2 shown comprises an upper front door 10 which gives access to a refrigerating compartment 12 as well as a lower front door 14 which gives access to a freezing compartment 16. Alternatively, the household appliance 2 could have one door only or several doors.

[0044] The household appliance 2 shown on the upper front door 10 comprises a user interface 20 for interacting with the household appliance 2 and for obtaining information which is displayed on the user interface 20. The user interface 20 is displayed in a box 26 in an exploded view. In other preferred embodiments, the user interface 20 can be arranged on the bottom door or lower front door 14 or on the cabinet (behind a door).

[0045] In FIG. 2, the exploded view of box 26 of FIG. 1 is shown in greater detail. The user interface 20 preferably comprises an electronics part 26, a housing part 32, two inlays 36 and a cover part 40. The door 10 is preferably provided with a slot. The cover part 40 preferably comprises teeth. The electronics part 26 then is preferably assembled first with the housing part 32 and then with the cover part 40. Finally, the subassembly of components 26, 38, 36, 40 is preferably assembled on the slot provided in the door 10. Preferably, the teeth provided on the cover part 40 engage with suitable seats provided on this door slot.

[0046] The cover part 40 is preferably snapped to the housing part 32. The cover part 40 is advantageously built with a transparent and/or at least partially opaque material. As an example, it can be coloured in black with at least one portion allowing a light passage. In this way, cover part 40 fulfils simultaneously an aesthetic function as well as a protective function.

[0047] The aesthetic/transparent inlays 36 are positioned in corresponding recesses 38 provided on the housing part 32, sandwiched between said housing part 32 and said cover part 40 when the cover part 40 is assembled to housing part 32.

[0048] The electronics part 26 is shown in FIG. 3 in an exploded view and in FIG. 4 in an assembled state. In the mounted position, housing part 32 preferably encompasses electronics part 26 at the front and sides.

[0049] The electronics part 26 shown in FIG. 3 in an exploded view preferably comprises (from bottom to top in FIG. 3) a display main board 44, a secondary board 50, a display carrier element 54, and a film 70. On the display carrier element 54, two switch elements comprising, respectively, a capacitive sensing element 58, are preferably arranged, which are, respectively, built as PCB 60. Furthermore or alternatively, on the display carrier element 54 two displays 64 are preferably arranged. The displays 64 as well as the PCB 60 are preferably covered by the common at least partially transparent film 70. On the respective PCB 60, a capacitive sensing circuit 62 is arranged. The respective capacitive sensing element is connected to a control unit 68 which is preferably mounted on the display main board 44. Alternatively, the control unit can be the machine main control unit, opportunely connected to the capacitive sensing element.

[0050] The display main board 44 is essentially a carrier element of the other components and can be arranged in the appliance, while the other components shown in FIG. 3 are attached to it directly or via other components. The display main board 44 preferably comprises one or more, preferably six switching elements 72, each preferably comprising a spring, preferably a square spring, which are preferably used for functionalities that cannot be directly linked to the two displays 64. In a preferred embodiment, a first display 64 which comprises the sensing element 58 can display the fresh food compartment temperature. By touch operations on the sensing element 58, the user then can change the corresponding set temperature. The second display which also comprises a sensing element 58 can be used to display the freezer compartment temperature. By touch operations on the sensing element 58, the user then can change the corresponding set temperature. The other switches can, for instance, be used for these functionalities: ECO mode, air distribution regulation, extra cooling, extra freezing, connectivity, filter reset. In the mounted configuration, they are preferably arranged above and below the displays 64, see FIG. 1.

[0051] More preferably, each spring comprises on the center a light element, so that when the electronic part 26 is assembled with the housing part 32, each light element, when illuminated (i.e. in case of touch/proximity of the user's finger of the respective spring), provides a light beam that passes through a respective opening, preferably a square opening, on the housing part 32.

[0052] The secondary board 50 preferably comprises several electrically conducting pins 80 of which only two are labelled in the FIG. The pins electronically connect the secondary board 50 to the display main board 44. The secondary board 50 is preferably connected to the carrier element 54, the latter is preferably connected to the main board 44 through snap connections.

[0053] The secondary board 50 further preferably comprises two groups of light elements 82 which serve to illuminate display portions displays 64. Further light elements 86 (in the present embodiment six of them) are preferably arranged on secondary board 50 which are associated with openings 90 in the display carrier element 54. In the mounted configuration, the secondary board 50 is preferably received by the display carrier element 54.

[0054] The display carrier element 54 is preferably connected to the display main board 54 by a snap connection. Preferably the display carrier elements 54 in four corners comprises snap elements which engage with corresponding recesses in the display main board 44 or vice versa.

[0055] The display carrier element preferably comprises two recesses 94 which, respectively, each receiving a PCB 60. The depth of the respective recess 94 preferably corresponds to the depth of the respective PCB 60 such that in the fully assembled state the corresponding display surfaces flush with the surfaces of the PCB 60. In this way, the film 70 covers both displays 64 and PCB 60 in an even manner, leading to a high-grade look and user experience.

[0056] At least one pin 92 is preferably emerging from each of the capacitive sensing circuit 62 which is preferably supported by a hole on the carrier element 54 and is preferably electrically connected to the main board 44.

[0057] In the preferred embodiment shown, the respective PCB 60 preferably has a cross section resembling the shape of the capital letter “C”. Each PCB 60 in this way encircles/encompasses the adjacent display 64. In this way, the PCB 60 can be arranged in direct adjacency to the display 64, signaling the user clearly which sensing element 58 is linked to which display. Each PCB 60 moreover preferably comprises a recess 100 in one of the wings of the “C”-shape which in the mounted state encompasses a respective display portion 104 that is preferably associated to a light element provided on the secondary board 50. As an example, the illumination of this light element can be controlled to blink until the set/displayed temperature is reached in the respective compartment.

[0058] The film 70, which is at least partly transparent, preferably comprises imprinted symbols 108 which are arranged on top of the respective display 84 and in the conjunction with the display 84 and the light elements 82 allow the display of numbers. The imprinted rectangles 110, which are preferably designed as squares, in conjunction with light elements 86, allow the indication of various system states.

[0059] The invention thus conceived can be subjected to numerous modifications and variants all falling within the scope of the inventive concept.

[0060] In addition, all details can be replaced by other technically equivalent elements. In practice, all the materials used, as well as the shapes and contingent dimensions, may vary depending on the requirements without departing from the scope of protection of the following claims.

LIST OF REFERENCE NUMERALS

[0061] 2 household appliance [0062] 6 casing [0063] 10 upper front door [0064] 12 refrigerating compartment [0065] 14 lower front door [0066] 16 freezing compartment [0067] 20 user interface [0068] 26 electronics part [0069] 32 housing part [0070] 36 inlay [0071] 38 recess [0072] 40 cover part [0073] 44 display main board [0074] 50 secondary board [0075] 54 display carrier element [0076] 56 switch element [0077] 58 capacitive sensing element [0078] 60 PCB [0079] 62 capacitive sensing circuit [0080] 64 display [0081] 68 control unit [0082] 70 film [0083] 72 switching element [0084] 80 pin [0085] 82 light element [0086] 86 light element [0087] 90 opening [0088] 92 pin [0089] 94 recess [0090] 100 recess [0091] 104 display portion [0092] 108 imprinted symbols [0093] 110 imprinted rectangles