DOMESTIC APPLIANCE DEVICE

Abstract

A household appliance device includes a first structural unit, a second structural unit, and an insulation unit configured to provide an insulation between the first and second structural units. The insulation unit includes a placement assist element configured to tailor an exterior shape of the insulation unit to the first structural unit for placement of the insulation unit, and an expansion compensation element configured to compensate at least substantially a thermal expansion of at least one subregion of the insulation unit.

Claims

1-15. (canceled)

16. A household appliance device, comprising: a first structural unit; a second structural unit; and an insulation unit configured to provide an insulation between the first and second structural units, said insulation unit including a placement assist element configured to tailor an exterior shape of the insulation unit to the first structural unit for placement of the insulation unit, and an expansion compensation element configured to compensate at least substantially a thermal expansion of at least one subregion of the insulation unit.

17. The household appliance device of claim 16, constructed in the form of a household cooking appliance device.

18. The household appliance device of claim 16, wherein the placement assist element includes a segment which defines a longitudinal extension direction which is aligned at an angle to a longitudinal extension direction of a segment of the expansion compensation element in an unmounted state.

19. The household appliance device of claim 16, wherein the placement assist element has a notch in the insulation unit in an unmounted state.

20. The household appliance device of claim 16, wherein the placement assist element adjoins a lateral boundary of the insulation unit in an unmounted state.

21. The household appliance device of claim 20, wherein the placement assist element extends at a minimum angle of at least substantially 45° to the lateral boundary of the insulation unit in the unmounted state.

22. The household appliance device of claim 16, wherein the expansion compensation element is formed by a material weakening of the insulation unit in an unmounted state.

23. The household appliance device of claim 16, wherein the expansion compensation element is arranged in an unmounted state completely within a surface extension of the insulation unit in a main extension plane when the main extension plane of the insulation unit is viewed in a perpendicular manner.

24. The household appliance device of claim 16, further comprising a further insulation unit including a further placement assist element and a further expansion compensation element, said further insulation unit having a configuration which differs from a configuration of the insulation unit.

25. The household appliance device of claim 24, wherein the insulation unit and the further insulation unit have at least substantially a same surface extension in an unmounted state.

26. The household appliance device of claim 24, wherein the insulation unit and the further insulation unit overlap one another such that the placement assist element and the further placement assist element are arranged without overlap in the unmounted state, when a main extension plane of the insulation unit is viewed in a perpendicular manner

27. The household appliance device of claim 24, wherein the insulation unit and the further insulation unit overlap one another such that the expansion compensation element and the further expansion compensation element are arranged without overlap in the unmounted state, when a main extension plane of the insulation unit is viewed in a perpendicular manner

28. The household appliance device of claim 16, wherein the insulation unit is configured as a single piece.

29. The household appliance device of claim 16, wherein the insulation unit has a first insulation subelement and a second insulation subelement, said first and second subelements configured to enable mounting in a modular manner.

30. The household appliance device of claim 29, wherein the first insulation subelement has a configuration which differs from a configuration of the second insulation subelement.

31. A household appliance, in particular a household cooking appliance, comprising a household appliance device, said household appliance device comprising a first structural unit, a second structural unit, and an insulation unit configured to provide an insulation between the first and second structural units, said insulation unit including a placement assist element configured to tailor an exterior shape of the insulation unit to the first structural unit for placement of the insulation unit, and an expansion compensation element configured to compensate at least substantially a thermal expansion of at least one subregion of the insulation unit.

32. The household appliance of claim 31, wherein the placement assist element includes a segment which defines a longitudinal extension direction which is aligned at an angle to a longitudinal extension direction of a segment of the expansion compensation element in an unmounted state.

33. The household appliance of claim 31, wherein the placement assist element has a notch in the insulation unit in an unmounted state.

34. The household appliance of claim 31, wherein the placement assist element adjoins a lateral boundary of the insulation unit in an unmounted state.

35. The household appliance of claim 34, wherein the placement assist element extends at a minimum angle of at least substantially 45° to the lateral boundary of the insulation unit in the unmounted state.

36. The household appliance of claim 31, wherein the expansion compensation element is formed by a material weakening of the insulation unit in an unmounted state.

37. The household appliance of claim 31, wherein the expansion compensation element is arranged in an unmounted state completely within a surface extension of the insulation unit in a main extension plane when the main extension plane of the insulation unit is viewed in a perpendicular manner.

38. The household appliance of claim 31, wherein the household appliance device comprises a further insulation unit including a further placement assist element and a further expansion compensation element, said further insulation unit having a configuration which differs from a configuration of the insulation unit.

39. The household appliance of claim 38, wherein the insulation unit and the further insulation unit have at least substantially a same surface extension in an unmounted state.

40. The household appliance of claim 38, wherein the insulation unit and the further insulation unit overlap one another such that the placement assist element and the further placement assist element are arranged without overlap in the unmounted state, when a main extension plane of the insulation unit is viewed in a perpendicular manner.

41. The household appliance of claim 38, wherein the insulation unit and the further insulation unit overlap one another such that the expansion compensation element and the further expansion compensation element are arranged without overlap in the unmounted state, when a main extension plane of the insulation unit is viewed in a perpendicular manner

42. The household appliance of claim 31, wherein the insulation unit is configured as a single piece.

43. The household appliance of claim 31, wherein the insulation unit has a first insulation subelement and a second insulation subelement, said first and second subelements configured to enable mounting in a modular manner.

44. The household appliance of claim 43, wherein the first insulation subelement has a configuration which differs from a configuration of the second insulation subelement.

Description

[0042] In the drawing:

[0043] FIG. 1 shows a schematic diagram of a household appliance with a household appliance device,

[0044] FIG. 2 shows a schematic sectional diagram of a detail of the household appliance,

[0045] FIG. 3 shows a schematic top view of an insulation unit of the household appliance device in an unmounted state,

[0046] FIG. 4 shows a schematic top view of a further insulation unit of the household appliance device in an unmounted state,

[0047] FIG. 5 shows a schematic top view of the insulation unit and the further insulation unit, which are arranged in an overlapping arrangement, in an unmounted state,

[0048] FIG. 6 shows a schematic top view of the insulation unit and the further insulation unit, which are arranged in an overlapping arrangement, and a heating unit of the household appliance device in an unmounted state,

[0049] FIG. 7 shows a schematic top view of an insulation unit and a further insulation unit, which are arranged in an overlapping arrangement, and a heating unit of an alternative household appliance device in an unmounted state,

[0050] FIG. 8 shows a schematic top view of the insulation unit from FIG. 7 in an unmounted state,

[0051] FIG. 9 shows a schematic top view of the further insulation unit from FIG. 7 in an unmounted state,

[0052] FIG. 10 shows a schematic top view of an insulation unit and a further insulation unit, which are arranged in an overlapping arrangement, of an alternative household appliance device in an unmounted state,

[0053] FIG. 11 shows a schematic top view of a first insulation subelement of the insulation unit from FIG. 10 in an unmounted state,

[0054] FIG. 12 shows a schematic top view of a second insulation subelement of the insulation unit from FIG. 10 in an unmounted state,

[0055] FIG. 13 shows a schematic top view of a further first insulation subelement of the further insulation unit from FIG. 10 in an unmounted state and

[0056] FIG. 14 shows a schematic top view of a further second insulation subelement of the further insulation unit from FIG. 10 in an unmounted state.

[0057] FIG. 1 shows a household appliance 42a, which is configured as a household cooking appliance. As an alternative to being configured as a household cooking appliance the household appliance 42a could be configured as a cleaning appliance for example. For example the household appliance 42a configured as a household cooking appliance could be configured as a cooktop, preferably an induction cooktop, and/or a microwave and/or a grill appliance and/or a steam cooking appliance. In the present exemplary embodiment the household appliance 42a is configured as an oven and preferably as an induction oven.

[0058] The household appliance 42a has a household appliance device 10a. The household appliance device 10a is configured as a household cooking appliance device. In the present exemplary embodiment the household appliance device 10a is configured as an oven device and preferably as an induction oven device.

[0059] The household appliance device 10a has a muffle 44a. The muffle 44a partially delimits a cooking space 46a. The muffle 44a substantially delimits the cooking space 46a together with a cooking appliance door 48a. The household appliance device 10a has the cooking appliance door 48a.

[0060] In the present exemplary embodiment the household appliance device 10a has five muffle walls 50a. Where an object is present multiple times in the figures, only one is shown with a reference character. The muffle walls 50a are part of the muffle 44a. The muffle walls 50a together with the cooking appliance door 48a substantially define the cooking space 46a.

[0061] One of the muffle walls 50a is configured as a muffle bottom wall 52a. One of the muffle walls 50a is configured as a muffle top wall 54a. One of the muffle walls 50a is configured as a muffle rear wall 56a. Two of the muffle walls 50a are configured as muffle side walls 58a, 60a. Only one of the muffle walls 50a is described in the following.

[0062] The household appliance device 10a has an operator interface 64a for inputting and/or selecting operating parameters (see FIG. 1), for example a heating power and/or a heating power density and/or a heating zone. The operator interface 64a is provided to output a value of an operating parameter to an operator.

[0063] The household appliance device 10a has a control unit 66a. The control unit 66a is provided to perform actions and/or change settings as a function of operating parameters input by way of the operator interface 64a. In an operating state the control unit 66a regulates an energy supply to at least one heating unit 62a (see FIGS. 2 and 6).

[0064] In the present exemplary embodiment the household appliance device 10a has two heating units 62a. Only one of the heating units 62a is shown in the figures. Alternatively the household appliance device 10a could in particular have a different number of heating units 62a. For example the household appliance device 10a could have just one single heating unit 62a. Alternatively the household appliance device 10a could have for example at least three, in particular at least four, advantageously at least five and preferably multiple heating units 62a.

[0065] In an operating state the heating units 62a are arranged outside the cooking space 46a. A lower heating unit 62a of the heating units 62a is arranged below the muffle wall 50a configured as a muffle bottom wall 52a in an installed position. The lower heating unit 62a is arranged on the muffle wall 50a configured as a muffle bottom wall 52a.

[0066] An upper heating unit 62a of the heating units 62a is arranged above the muffle wall 50a configured as a muffle top wall 54a in an installed position. The upper heating unit 62a is arranged on the muffle wall 50a configured as a muffle top wall 54a.

[0067] Alternatively at least one heating unit 62a could be arranged on a muffle wall 50a configured as a muffle side wall 58a, 60a and/or on a muffle wall 50a configured as a muffle rear wall 56a. Only one of the heating units 62a is described in the following.

[0068] For example the heating unit 62a could be configured as a resistance heating unit. In the present exemplary embodiment the heating unit 62a is configured as an induction heating unit.

[0069] The household appliance device 10a has one insulation unit 12a per heating unit 62a (see FIGS. 2, 3, 5 and 6). The insulation unit 12a is provided for insulation between a first structural unit 14a and a second structural unit 16a. In an operating state the insulation unit 12a insulates the first structural unit 14a and the second structural unit 16a from one another.

[0070] The household appliance device 10a has the first structural unit 14a. In the present exemplary embodiment the first structural unit 14a is the muffle 44a.

[0071] The household appliance device 10a has the second structural unit 16a. In the present exemplary embodiment the second structural unit 16a is the heating unit 62a.

[0072] The insulation unit 12a is provided for electrical insulation between the first structural unit 14a and the second structural unit 16a. In an operating state the insulation unit 12a insulates the first structural unit 14a and the second structural unit 16a electrically from one another.

[0073] In particular the insulation unit 12a is provided for thermal insulation between the first structural unit 14a and the second structural unit 16a in addition to the electrical insulation between the first structural unit 14a and the second structural unit 16a. In an operating state the insulation unit 12a insulates the first structural unit 14a and the second structural unit 16a thermally from one another.

[0074] In an operating state the insulation unit 12a is largely arranged between the first structural unit 14a and the second structural unit 16a. In an operating state the insulation unit 12a is arranged on the muffle wall 50a of the muffle 44a.

[0075] In the present exemplary embodiment the insulation unit 12a has four placement assist elements 18a (see FIGS. 3, 5 and 6). Alternatively the insulation unit 12a could in particular have a different number of placement assist elements 18a. For example the insulation unit 12a could have just one single placement assist element 18a. Alternatively or additionally the insulation unit 12a could have for example at least two and in particular at least four placement assist elements 18a. Alternatively the insulation unit 12a could have for example at least five, in particular at least six, advantageously at least eight and preferably multiple placement assist elements 18a. Only one of the placement assist elements 18a is described in the following.

[0076] The placement assist element 18a is provided to tailor an exterior shape of the insulation unit 12a to the first structural unit 14a for the purpose of placing the insulation unit 12a. In an operating state the placement assist element 18a is provided for the purpose of placing the insulation unit 12a in a region of at least one edge and/or unevenness of the first structural unit 14a.

[0077] In an unmounted state the placement assist element 18a has a notch in the insulation unit 12a. In an unmounted state the placement assist element 18a is formed by a notch in the insulation unit 12a. In the present exemplary embodiment the placement assist element 18a is configured in a straight line. The placement assist element 18a has just one single segment 24a.

[0078] In an unmounted state the placement assist element 18a adjoins a lateral boundary 30a of the insulation unit 12a. In an unmounted state the placement assist element 18a extends from the lateral boundary 30a of the insulation unit 12a in the direction of a center point and/or center of gravity of the insulation unit 12a. In the present exemplary embodiment the placement assist element 18a is at a minimum angle 68a of substantially 45° to the lateral boundary 30a of the insulation unit 12a in an unmounted state.

[0079] In the present exemplary embodiment the insulation unit 12a has twelve expansion compensation elements 20. The expansion compensation elements 20a are grouped in four groups. Each group of expansion compensation elements 20a is defined by three expansion compensation elements 20a. The expansion compensation elements 20a of each group differ in respect of a longitudinal extension of the respective expansion compensation elements 20a.

[0080] An expansion compensation element 20a1 closest to a lateral boundary 30a of the insulation unit 12a has a greater longitudinal extension than an expansion compensation element 20a3 closest to a center point and/or center of gravity of the insulation unit 12a. The expansion compensation elements 20a of a respective group are grouped with decreasing longitudinal extension from the lateral boundary 30a of the insulation unit 12a in the direction of a center point and/or center of gravity of the insulation unit 12a. A central expansion compensation element 20a2 has a longitudinal extension that is smaller than a longitudinal extension of an expansion compensation element 20a1 closest to the lateral boundary 30a of the insulation unit 12a and greater than a longitudinal extension of an expansion compensation element 20a3 closest to the center point and/or center of gravity of the insulation unit 12a.

[0081] The expansion compensation elements 20a of each group are aligned substantially parallel to one another. Only one of the expansion compensation elements 20a is described in the following.

[0082] The expansion compensation element 20a is provided to compensate substantially for thermal expansion of at least one subregion of the insulation unit 12a. In an operating state the expansion compensation element 20a allows thermal expansion of the subregion of the insulation unit 12a. In an operating state the expansion compensation element 20a compensates substantially for thermal expansion of at least one subregion of the insulation unit 12a.

[0083] In the present exemplary embodiment the expansion compensation element 20a is configured in a straight line. The expansion compensation element 20a has just one single segment 28a. In an unmounted state the expansion compensation element 20a is aligned substantially parallel to a lateral boundary 30a of the insulation unit 12a.

[0084] In an unmounted state a longitudinal extension direction 22a of the segment 24a of the placement assist element 18a is aligned at an angle to a longitudinal extension direction 26a of the segment 28a of the expansion compensation element 20a. In the present exemplary embodiment a longitudinal extension direction 22a of the segment 24a of the placement assist element 18a and a longitudinal extension direction 26a of the segment 28a of the expansion compensation element 20a are at a minimum angle 70a of substantially 45° in an unmounted state.

[0085] In an unmounted state the expansion compensation element 20a has at least one material weakening of the insulation unit 12a. For example in an unmounted state the expansion compensation element 20a could have a smaller thickness of the insulation unit 12a and/or a recess in the insulation unit 12a. In the present exemplary embodiment in an unmounted state the expansion compensation element 20 has a notch in the insulation unit 12a.

[0086] In an unmounted state the expansion compensation element 20a is arranged completely within a surface extension of the insulation unit 12a in the main extension plane when a main extension plane of the insulation unit 12a is viewed in a perpendicular manner. In an unmounted state the expansion compensation element 20a is arranged at a distance from lateral boundaries 30a of the insulation unit 12a when a main extension plane of the insulation unit 12a is viewed in a perpendicular manner.

[0087] In addition to the insulation unit 12a the household appliance device 10a has a further insulation unit 32a (see FIGS. 4 to 6). The further insulation unit 32a differs from the insulation unit 12a in at least one feature. The further insulation unit 32a differs from the insulation unit 12a in an arrangement of placement assist elements 18a, 34a relative to a lateral boundary 30a, 72a. In the present exemplary embodiment the further insulation unit 32a differs from the insulation unit 12a in a number of expansion compensation elements 20a, 36a and/or in an arrangement of expansion compensation elements 20a, 36a relative to a lateral boundary 30a, 72a.

[0088] In the present exemplary embodiment the further insulation unit 32a has four further placement assist elements 34a. Only one of the further placement assist elements 34a is described in the following.

[0089] The further placement assist element 34a is provided to tailor an exterior shape of the further insulation unit 32a to the first structural unit 14a for the purpose of placing the further insulation unit 32a. In an operating state the further placement assist element 34a is provided for the purpose of placing the further insulation unit 32a in a region of at least one edge and/or unevenness of the first structural unit 14a.

[0090] In an unmounted state the further placement assist element 34a has a notch in the further insulation unit 32a. In an unmounted state the further placement assist element 34a is formed by a notch in the further insulation unit 32a. In the present exemplary embodiment the further placement assist element 34a is configured in a straight line. The further placement assist element 34a has just one single segment 76a.

[0091] In an unmounted state the further placement assist element 34a adjoins a lateral boundary 72a of the further insulation unit 32a. In an unmounted state the further placement assist element 34a extends from the lateral boundary 72a of the further insulation unit 32a in the direction of a center point and/or center of gravity of the further insulation unit 32a. In the present exemplary embodiment in an unmounted state the further placement assist element 34a is at a minimum angle 82a of substantially 45° to the lateral boundary 72a of the further insulation unit 32a.

[0092] In the present exemplary embodiment the further insulation unit 32a has eight further expansion compensation elements 36a. The further expansion compensation elements 36a are grouped in four groups. Each group of further expansion compensation elements 36a is defined by two further expansion compensation elements 36a. The further expansion compensation elements 36a of each group differ in respect of a longitudinal extension of the respective further expansion compensation elements 36a.

[0093] A further expansion compensation element 36a1 closest to a lateral boundary 72a of the further insulation unit 32a has a greater longitudinal extension than a further expansion compensation element 36a2 closest to a center point and/or center of gravity of the further insulation unit 32a. The further expansion compensation elements 36a of a respective group are grouped with decreasing longitudinal extension from the lateral boundary 72a of the further insulation unit 32a in the direction of a center point and/or center of gravity of the further insulation unit 32a.

[0094] The further expansion compensation elements 36a of each group are aligned substantially parallel to one another. Only one of the further expansion compensation elements 36a is described in the following.

[0095] The further expansion compensation element 36a is provided to compensate substantially for thermal expansion of at least one subregion of the further insulation unit 32a. In an operating state the further expansion compensation element 36a allows thermal expansion of the subregion of the further insulation unit 32a. In an operating state the further expansion compensation element 36a compensates substantially for thermal expansion of at least one subregion of the further insulation unit 32a.

[0096] In the present exemplary embodiment the further expansion compensation element 36a is configured in a straight line. The further expansion compensation element 36a has just one single segment 80a. In an unmounted state the further expansion compensation element 36a is aligned substantially parallel to a lateral boundary 72a of the further insulation unit 32a.

[0097] In an unmounted state a longitudinal extension direction 74a of the segment 76a of the further placement assist element 34a is aligned at an angle to a longitudinal extension direction 78a of the segment 80a of the further expansion compensation element 36a. In the present exemplary embodiment a longitudinal extension direction 74a of the segment 76a of the further placement assist element 34a and a longitudinal extension direction 78a of the segment 80a of the further expansion compensation element 36a are at a minimum angle 84a of substantially 45° in an unmounted state.

[0098] In an unmounted state the further expansion compensation element 36a has at least one material weakening of the further insulation unit 32a. For example in an unmounted state the further expansion compensation element 36a could have a smaller thickness of the further insulation unit 32a and/or a recess in the further insulation unit 32a. In the present exemplary embodiment in an unmounted state the further expansion compensation element 36 has a notch in the further insulation unit 32a.

[0099] In an unmounted state the further expansion compensation element 36a is arranged completely within a surface extension of the further insulation unit 32a in the main extension plane when a main extension plane of the further insulation unit 32a is viewed in a perpendicular manner. In an unmounted state the further expansion compensation element 36a is arranged at a distance from lateral boundaries 72a of the further insulation unit 32a when a main extension plane of the further insulation unit 32a is viewed in a perpendicular manner.

[0100] In an unmounted state the insulation unit 12a and the further insulation unit 32a have substantially and advantageously completely the same surface extension (see FIGS. 3 to 6). In an unmounted state the insulation unit 12a and the further insulation unit 32a have substantially and advantageously completely the same exterior form.

[0101] When a main extension plane of the insulation unit 12a is viewed in a perpendicular manner and when there is an overlapping arrangement of the insulation unit 12a and the further insulation unit 32a, the placement assist element 18a and the further placement assist element 34a are arranged without overlap in an unmounted state. When there is an overlapping arrangement of the insulation unit 12a and the further insulation unit 32a, lateral boundaries 30a of the insulation unit 12a, in particular all the lateral boundaries 30a of the insulation unit 12a, and lateral boundaries 72a of the further insulation unit 32a, in particular all the lateral boundaries 72a of the further insulation unit 32a, lie on top of one another.

[0102] When a main extension plane of the insulation unit 12a is viewed in a perpendicular manner and when there is an overlapping arrangement of the insulation unit 12a and the further insulation unit 32a, the expansion compensation element 20a and the further expansion compensation element 36a are arranged without overlap in an unmounted state. When there is an overlapping arrangement of the insulation unit 12a and the further insulation unit 32a, expansion compensation elements 20a and further expansion compensation elements 36a are arranged in an alternating manner in an unmounted state.

[0103] In an unmounted state and with an overlapping arrangement of the insulation unit 12a and the further insulation unit 32a a further expansion compensation element 36a is arranged between every two expansion compensation elements 20a. In an unmounted state and with an overlapping arrangement of the insulation unit 12a and the further insulation unit 32a an expansion compensation element 20a is arranged between every two further expansion compensation elements 36a.

[0104] When there is an overlapping arrangement of the insulation unit 12a and the further insulation unit 32a, the placement assist element 18a and the further placement assist element 34a define a substantially right-angled triangle in an unmounted state. In an unmounted state every expansion compensation element 20a and every further expansion compensation element 36a are arranged between the placement assist element 18a and the further placement assist element 34a.

[0105] In the present exemplary embodiment the insulation unit 12a is configured as a single piece. The insulation unit 12a is formed from a single piece. In the present exemplary embodiment the insulation unit 12a is largely made of mica, in particular synthetic mica.

[0106] FIGS. 7 to 15 show two further exemplary embodiments of the invention. The descriptions which follow are limited substantially to the differences between the exemplary embodiments, it being possible to refer to the description of the exemplary embodiment in FIGS. 1 to 6 for parts, features and functions that remain the same. To differentiate between the exemplary embodiments, the letter a in the reference characters of the exemplary embodiment in FIGS. 1 to 6 is replaced by the letters b and c in the reference characters of the exemplary embodiment in FIGS. 7 to 15. In principle reference can be made to the drawings and/or description of the exemplary embodiment in FIGS. 1 to 6 for parts designated in the same manner, in particular for parts with the same reference characters.

[0107] FIG. 7 shows an insulation unit 12b and a further insulation unit 32b, which are arranged in an overlapping arrangement, and a heating unit 62b of an alternative household appliance device 10b in an unmounted state. The further insulation unit 32b differs from the insulation unit 12b in at least one feature. The further insulation unit 32b differs from the insulation unit 12b in an arrangement of placement assist elements 18b, 34b relative to a lateral boundary 30b, 72b. In the present exemplary embodiment the further insulation unit 32b differs from the insulation unit 12b in a number of expansion compensation elements 20b, 36b and/or in an arrangement of expansion compensation elements 20b, 36b relative to a lateral boundary 30b, 72b.

[0108] In the present exemplary embodiment the insulation unit 12b has four placement assist elements 18b (see FIGS. 7 and 8). Only one of the placement assist elements 18b is described in the following.

[0109] In the present exemplary embodiment the placement assist element 18b is configured in a straight line. The placement assist element 18b has just one single segment 24b.

[0110] In an unmounted state the placement assist element 18b adjoins a lateral boundary 30b of the insulation unit 12b. In the present exemplary embodiment the placement assist element 18b is at a minimum angle 68b of substantially 90° to the lateral boundary 30b of the insulation unit 12b in an unmounted state.

[0111] In the present exemplary embodiment the insulation unit 12b has eight expansion compensation elements 20b. The expansion compensation elements 20b are grouped in four groups. Each group of expansion compensation elements 20b is defined by two expansion compensation elements 20b. The expansion compensation elements 20b of each group differ in respect of a longitudinal extension of the respective expansion compensation elements 20b.

[0112] An expansion compensation element 20b1 closest to a lateral boundary 30b of the insulation unit 12b has a greater longitudinal extension than an expansion compensation element 20b2 closest to a center point and/or center of gravity of the insulation unit 12b.

[0113] The expansion compensation elements 20b of each group are aligned substantially parallel to one another. Only one of the expansion compensation elements 20b is described in the following.

[0114] In the present exemplary embodiment the expansion compensation element 20b has two segments 28b, 98b. A first segment 28b of the segments 28b, 98b of the expansion compensation element 20b has a longitudinal extension direction 26b, which is aligned perpendicular to a longitudinal extension direction 100b of a second segment 98b of the segments 28b, 98b of the expansion compensation element 20b.

[0115] The expansion compensation element 20b has a transition segment 86b, which connects the segments 28b, 98b of the expansion compensation element 20b to one another. The transition segment is configured in the shape of a circular arc, in particular a quarter circular arc. Only one of the segments 28b, 98b of the expansion compensation element 20b is described in the following.

[0116] In an unmounted state the segment 28b of the expansion compensation element 20a is aligned substantially parallel to a lateral boundary 30b of the insulation unit 12b. The segment 28b of the expansion compensation element 20b is configured in a straight line.

[0117] A longitudinal extension direction 26b of the segment 28b of the expansion compensation element 20b, in particular of each of the segments 28b of the expansion compensation element 20b, is aligned at an angle to a longitudinal extension direction 22b of the segment 24b of the placement assist element 18b in an unmounted state. In the present exemplary embodiment a longitudinal extension direction 26b of the segment 28b of the expansion compensation element 20b, in particular of each of the segments 28b of the expansion compensation element 20b, and a longitudinal extension direction 22b of the segment 24b of the placement assist element 18b are at minimum angle 70b of substantially 90° in an unmounted state.

[0118] In the present exemplary embodiment the further insulation unit 32b has four further placement assist elements 34b. In the present exemplary embodiment the further insulation unit 32b has four further expansion compensation elements 36b. Only one of the further placement assist elements 34b and only one of the further expansion compensation elements 36b are described in the following.

[0119] In an unmounted state the further placement assist element 34b adjoins a lateral boundary 72b of the further insulation unit 32b. In the present exemplary embodiment in an unmounted state the further placement assist element 24b is at a minimum angle 82b of substantially 90° to the lateral boundary 72b of the further insulation unit 34b.

[0120] In an unmounted state the further placement assist element 34b has substantially the same shape and/or alignment and/or form as the placement assist element 18b, for which reason reference should be made in particular to the description relating to the placement assist element 18b.

[0121] In the present exemplary embodiment the further expansion compensation element 36b has two segments 80b, 94b. A first segment 80b of the segments 80b, 94b of the further expansion compensation element 36b has a longitudinal extension direction 78b, which is aligned perpendicular to a longitudinal extension direction 96b of a second segment 94b of the segments 80b, 94b of the further expansion compensation element 36b.

[0122] The further expansion compensation element 36b has a further transition segment 88b, which connects the segments 80b, 94b of the further expansion compensation element 36b to one another. The further transition segment 88b is configured in the shape of a circular arc, in particular a quarter circular arc. Only one of the segments 80b, 94b of the further expansion compensation element 36b is described in the following.

[0123] In an unmounted state the further expansion compensation element 36b has substantially the same shape and/or alignment and/or form as the expansion compensation element 20b, for which reason reference should be made in particular to the description relating to the expansion compensation element 20b.

[0124]

[0125] In an unmounted state and with an overlapping arrangement of the insulation unit 12b and the further insulation unit 32b the further expansion compensation element 36b is arranged between two expansion compensation elements 20b. With an overlapping arrangement of the insulation unit 12b and the further insulation unit 32b the placement assist element 18b and the further placement assist element 34b are aligned substantially parallel to one another in an unmounted state.

[0126] FIG. 11 shows an insulation unit 12c and a further insulation unit 32c, which are arranged in an overlapping arrangement, of an alternative household appliance device 10c in an unmounted state. The insulation unit 12c and the further insulation unit 32c are configured in a similar manner to the insulation unit 12a and the further insulation unit 32a from the exemplary embodiment in FIGS. 1 to 6 in respect of an arrangement of placement assist elements 18c, 34c and expansion compensation elements 20c, 36c relative to one another, for which reason reference should be made to the description relating to the exemplary embodiment in FIGS. 1 to 6 here.

[0127] In contrast to the configuration of the exemplary embodiment in FIGS. 1 to 6 the insulation unit 12c is configured with multiple parts. In the present exemplary embodiment the insulation unit 12c has a first insulation subelement 38c and a second insulation subelement 40c (see FIGS. 11 to 13). The first insulation subelement 38c and the second insulation subelement 40c are provided for mounting in a modular manner.

[0128] The first insulation subelement 38c and the second insulation subelement 40c differ from one another in at least one feature. In the present exemplary embodiment the first insulation subelement 38c and the second insulation subelement 40c differ from one another in size.

[0129] In contrast to the configuration of the exemplary embodiment in FIGS. 1 to 6 the further insulation unit 32c is configured with multiple parts. In the present exemplary embodiment the further insulation unit 32c has a further first insulation subelement 90c and a further second insulation subelement 92c (see FIGS. 11, 14 and 15). The further first insulation subelement 90c and the further second insulation subelement 92c are provided for mounting in a modular manner.

[0130] The further first insulation subelement 90c and the further second insulation subelement 92c differ from one another in at least one feature. In the present exemplary embodiment the further first insulation subelement 90c and the further second insulation subelement 92c differ from one another in size and/or in number of placement assist elements 18c, 34c.

REFERENCE CHARACTERS

[0131] 10 Household appliance device [0132] 12 Insulation unit [0133] 14 First structural unit [0134] 16 Second structural unit [0135] 18 Placement assist element [0136] 20 Expansion compensation element [0137] 22 Longitudinal extension direction [0138] 24 Segment [0139] 26 Longitudinal extension direction [0140] 28 Segment [0141] 30 Boundary [0142] 32 Further insulation unit [0143] 34 Further placement assist element [0144] 36 Further expansion compensation element [0145] 38 First insulation subelement [0146] 40 Second insulation subelement [0147] 42 Household appliance [0148] 44 Muffle [0149] 46 Cooking space [0150] 48 Cooking appliance door [0151] 50 Muffle wall [0152] 52 Muffle bottom wall [0153] 54 Muffle top wall [0154] 56 Muffle rear wall [0155] 58 Muffle side wall [0156] 60 Muffle side wall [0157] 62 Heating unit [0158] 64 Operator interface [0159] 66 Control unit [0160] 68 Angle [0161] 70 Angle [0162] 72 Boundary [0163] 74 Longitudinal extension direction [0164] 76 Segment [0165] 78 Longitudinal extension direction [0166] 80 Segment [0167] 82 Angle [0168] 84 Angle [0169] 86 Transition segment [0170] 88 Further transition segment [0171] 90 Further first insulation subelement [0172] 92 Further second insulation subelement [0173] 94 Segment [0174] 96 Longitudinal extension direction [0175] 98 Segment [0176] 100 Longitudinal extension direction