WO2007115903A2

WO2007115903A2 - Heated household appliance, in particular an iron

Info

Publication number: WO2007115903A2
Application number: PCT/EP2007/052590
Authority: WO
Inventors: Jörg Schröter
Original assignee: BSH Bosch und Siemens Hausgeräte GmbH
Priority date: 2006-04-04
Filing date: 2007-03-19
Publication date: 2007-10-18
Also published as: WO2007115903A3; DE102006015773A1

Abstract

The invention relates to a heated household appliance, in particular to an iron (10; 610) with a hot part (11; 611; 711) of the appliance (10; 610; 710) comprising a heating system (25; 625; 764, 766), and a cold part (13; 613; 713) being used for example for guiding or holding the hot part, a heat insulation being arranged therebetween. In order to avoid or reduce the disadvantages of the known prior art, in particular to reduce the space required by the insulation, the insulation includes an insulating element (40; 640, 740, 840) made of a cellular insulating material (41; 741), and gas heat conduction in the cells is reduced for example by means of a microporous insulating substance and/or vacuum in an insulating element with a sleeve. Either two insulating elements with different sleeves or a conventional upstream insulation can be used. The hot part (11; 611) and the cold part (13; 613) are preferably secured to one another so as to bypass the insulating element (40; 640, 698).

Description

Heated household appliance, in particular iron.

The invention relates to a heated household appliance according to the preamble of claim 1, in particular an iron.

In such devices e.g. For the heat treatment of work items, such as food, hair or textiles, there is the problem that a heated area is exposed to an unheated area, such as a heated area. an operating area of the device or adjacent furniture must be thermally insulated. This isolation is achieved by various measures such. mirrored surfaces, air spaces that may be ventilated, insulating mats made of glass or mineral wool, or walls of a sufficiently temperature-resistant material such as sheet metal or temperature-resistant plastic. These design measures are used more or less combined and occupy a considerable space, which limits the usable work space or increases the size of the device and restricts the design options. Furthermore, all these insulation measures still allow considerable heat losses, which increases the energy consumption of the device.

For example, in a known steam iron on the upper side of a sole plate with a cast-tubular heating element, a steam chamber is arranged. About its top wall is about two centimeters high and provided with a deduction dome, ventilated room for thermal insulation formed over the then the water tank is arranged.

The invention has for its object to avoid disadvantages of the prior art and in particular to reduce the space requirement of the insulation.

This object is achieved by the feature combination of claim 1. Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims. The proposed insulation according to this solution has about five to ten times lower heat transfer than the insulation or insulation materials previously used in such devices, which creates scope to realize various significant advantages individually or in combination. For example, a lower heat dissipation and a cooler cold section, ie cooler operating or support areas can be achieved, whereby the device is eg a more comfortable iron to use. Due to the lower heat load in the cold part may also be less temperature-resistant materials or components such as electronics can be used, which may be cheaper or it will increase the life and reliability of the components. Due to the smaller space requirement of the insulation, the design flexibility is increased and can be used to smaller, more elegant designs and material and weight savings. On the other hand, with the same external size of the device larger areas such as a larger water tank can be realized in a steam iron or a larger oven in a stove and / or the spatial integration of additional benefits possible. Furthermore, the energy consumption can be significantly reduced and the temperature fluctuations of the hot part or work area can be reduced. It can also be dispensed with a ventilation for cooling.

Insulation elements of the type proposed in claims 1 to 5 have been known per se for about two decades and are used in the form of flat panels in buildings for the insulation of external walls or for the insulation of cold storage rooms and in refrigerated transport containers. These insulating elements contain a supporting insulating core, e.g. glass fibers, or preferably a porous insulating material such as silica, which may have cells smaller than the mean free path of the gas molecules of a gas contained in the element. This reduces nanotechnology significantly the heat conduction in the gas. This core, which can also be powdered, is usually open-celled and additionally evacuated more or less and enclosed in a gas-tight envelope made of plastic films or steel or metal foil, which also reduces the gas heat conduction, especially in support cores with coarser cells, e.g. considerably reduced with glass fibers.

The insulation element can also consist of a microporous insulation material without a shell and evacuation as a body. As a metallic film material of a shell, for example, aluminum comes into question, which is inexpensive and easy to work but good heat conducting and therefore some heat around the edge of the element. Due to its poorer heat conduction is stainless steel, eg chrome steel advantage. A metallic shell is temperature resistant, resistant to aging and good gas tight and can also be mechanically robust. A shell with a cheaper plastic film, which may also be multilayer, isolated better and may be coated to improve the gas-tightness and / or for metallization. There are also combinations of metal and plastic films applicable.

The shell may have an edge flange which is provided with a wall surface, e.g. an inner wall surface of the device housing cooperates and preferably abuts against or close to this, in order to prevent or reduce a flow of hot air around the insulating element. For the same purpose, the spaces between the insulating element or elements and the hot part and / or the cold part may each be in communication with the environment through a vent or vents to prevent pumping of hot air around the insulating element.

According to a preferred development, the insulation can have two insulation elements arranged one behind the other in the direction of the heat flow with insulation material with reduced gas heat conduction, wherein the insulation element remote from the hot part is evacuated and provided with a gas-tight envelope which has a plastic film. In this case, the insulation element closer to the hot part can be designed without a shell or can have a metallic shell and endure high temperatures of the hot part with good aging resistance. With this insulation element, the temperature can be reduced so far that behind an insulation element with a temperature-sensitive, inexpensive shell of less heat-conducting plastic can be used, the load less heat flow around the edge of the element. With this combination, a particularly good insulation effect is achieved.

With a similar advantage, the insulating element or the insulation elements can also be a thermal additional insulation of another kind such as. an air or steam room on the hot side upstream.

According to an advantageous development of the hot part and the cold part of the device Have support surfaces for cooperation with surfaces of the insulating element. For example, in the case of an iron, compressive forces can be transmitted from the operating or cold part to the hot part over the insulating element. The hot part may have a support plate or support surface arranged between the additional thermal insulation and the insulation element. Also, the insulating element may at least partially support or support the hot part. Thus, in the case of a baking oven, an oven muffle can be supported in a planar manner by the surrounding cold part of the appliance essentially via the insulating element or a plurality of insulating elements.

The hot part and the cold part can also be fastened to one another, bypassing the insulation element or the insulation elements, in order to keep the insulation element as simple and inexpensive as possible and as far as possible without breakthroughs. The insulating element can be inserted loosely between the hot part and the cold part or e.g. be attached by gluing to one of the two parts, preferably the cold part.

Advantageously, to connect the hot part to the cold part, at least one fastening lamella, preferably made of a poorly heat-conductive material, e.g. E-steel. It is essential that it is an elongated poor thermal conductivity component that transmits as little heat between the hot and cold part due to the poor conductivity and / or the length of the compound. The lamella can be separated from an attachment point on the hot part by a distance from hot regions of the hot part between the insulating element and the hot part and e.g. be guided parallel to the preferably flat, panel-like insulation element to a side edge thereof and possibly embrace this side edge. Such a mounting blade may be resilient, e.g. in the case of an iron stronger compression or ironing forces can then be transmitted through the support surfaces of the device parts and the insulation element or the insulating elements in between.

The support surfaces of the hot part or of the cold part and / or of the insulation element may have a groove in which the fastening plate and / or a line extend to the edge of the insulation element. As lines come here as electrical lines such as a temperature sensor in the hot part or in the case of a steam iron, a water pipe to the steam chamber in question. The isolation element can for Implementation of lines also have a through hole or a peripheral recess.

In the case of an iron, its hot part may comprise a soleplate having a soleplate including the heater, with a support plate disposed at a distance above the soleplate having a support surface for the insulating element. To reduce the heat conduction, the support plate may consist of a poor thermal conductivity material such as stainless steel. Thus, on the one hand, the insulation element upstream thermal additional insulation of another kind in the form of an air or vapor space created and on the other hand, the insulation element against the unevenness of the sole plate such as heating and temperature sensor protected. In the case of a dry iron, this support plate may have angled edge portions which rest on the soleplate. The edge portions preferably have edge recesses to reduce the contact areas with the sole plate or the soleplate and in particular to avoid physical contact with the heater.

In the case of a steam iron having a steam generating chamber, the top wall extending at a distance above the sole plate may be formed as a support plate for the insulating member. In order to form the steam chamber, the sole plate usually has cast-on upstanding walls and attachment lugs and the top wall is in this case suitably bent down to these walls and the attachment points, so that the plane of the support surface over the upper ends of these uprising parts and the Fasteners, eg Screws, lies. Further, a conventional gasket may be interposed between the upstanding portions of the soleplate and the top panel to reduce heat conduction from the soleplate to the top panel.

The invention is of particular advantage in heated small domestic appliances such as e.g. Irons, toasters, coffee makers, fryers, grills, hairdryers, radiation equipment and fan heaters but with considerable advantage even with large home appliances, for. Ovens, hobs, washing machines, dryers or dishwashers used.

Further advantages and embodiments of the invention are described below with reference to Embodiments and the drawing explained in more detail.

In it show schematically:

Fig.1 is a side view of a steam iron;

FIG. 2 is an enlarged view of a section taken substantially along the line N-II in FIGS. 1 and 3; FIG.

FIG. 3 shows a detail of a section along the line III-III in FIG. 2, or essentially along the longitudinal central axis, of the front part of FIG

Steam iron;

Fig. 4 in a section corresponding to that of Figure 3 fragmentary the rear

Area of the same steam iron;

FIG. 5 is a plan view, on the scale of FIG. 1, of a vacuum insulation element of the steam iron illustrated in FIGS. 1-4; FIG.

6 shows a detail of a cross section through a dry iron, similar to the section of Figure 2, but in the rear region of the sole plate. and

7 shows a detail of a vertical section through a baking oven muffle.

The steam iron 10 shown in Figures 1 and 5 has a designated as a hot part 1 1 device part with a heated soleplate 12 made of cast aluminum. In addition, a designated as a cold part 13 device part is arranged with a lower housing part 14 made of a high temperature resistant plastic and an upper housing part 16 arranged above a less temperature-resistant plastic with a through-opening 18 and a handle 20th

The soleplate 12 includes a sole plate 22, which is flat on its underside, and above which, in the central region, a steam chamber 24 can escape from the steam through openings in the sole plate 22 (not shown). The steam chamber 24 becomes laterally bounded by an upstanding from the sole plate 22 upstanding side wall 26. The side wall 26 has in the upper edge of an inner stage 28 into which a steam chamber 24 upwardly closing cover plate 30 made of aluminum or better a poor heat-conducting stainless steel with a downturned edge 32 is used and potted with a sealing compound vapor-tight. In the steam chamber 24 is seen from above a total of about V-shaped tubular heater 25 is poured at the top of the sole plate 22 in this. In the steam chamber 24, the sole plate 12 also has upwardly projecting fastening lugs 34, with which downwardly sunken portions 36 of the cover plate 30 are screwed with screws 38 made of stainless steel. Due to the downwards or depressions used for fastening, the cover plate 30 offers a flat, upper support surface 31, which is not overhung by any fastening or sealing elements and on which a plate-shaped vacuum insulation element 40 rests (see FIG. The insulating element 40 has a supporting, microporous insulation filling 41 of silica or kieselguhr, which is connected to a plate and airtight packed in a shell 43 made of a chromium steel sheet or foil and evacuated to a certain extent.

The lower housing part 14 has a bottom plate 42, which extends just above the upper side of the insulating element 40 substantially over the entire surface of the soleplate 14 horizontally and parallel to the cover plate 30 of the steam chamber 24 and whose underside a support surface 96 of the cold part 13 to cooperate represents with the insulation element 40. Of this, a lower housing wall 44 extends close to the lateral edge of the sole plate down and holds to the latter a thermally insulating and the space below the insulating member 40 ventilating air gap 23, which may be smaller than in conventional irons, as a ventilation of Gerä - Tes omitted. With the lower housing part 14, the upper housing part 16 is welded and forms with this a water tank 46th

The sole plate 12 further has in the steam chamber 24 from the sole plate 22 up to the cover plate 30 towering projection 48 in the sealingly guided by the cover plate 30, from above a temperature sensor 50 is inserted. The cover plate 30 has one of them leading backward, sunken down channel 52, in which a connected to the temperature sensor 50 electrical control line 54 between the flat bottom of the insulating member 40 and the upstanding side wall 26 of the Steam chamber 24 is guided backwards. The upper housing part 16 has in the area behind the soleplate 12 and behind the water tank 46 disposed above a connection chamber 58, in which a temperature controller 60 is arranged, to which the measuring line 54 leads and which cooperates with a knob 62 for setting the target temperature.

The cover plate 30 of the steam chamber 24 has in its front region a passage opening 64 in which a control nozzle 66 of a temperature-resistant rubber material is sealingly inserted, which cooperates in its upper region sealingly with an opening of the bottom plate 42 of the water tank 46 and a through hole 47 of the insulating member 40th interspersed. Through the control nozzle 66 and the water tank 46 in the upper housing part 16 in front of the access opening 18, a vertical control rod 68 extends and cooperates with a projecting at the top of the upper housing part 16 steam control button 70 together.

Unheated end portions 71 of the tubular heater 25 lead rearwardly through the rear transverse wall portion of the side wall 26 of the steam chamber 24 and are angled upwardly in the end region thereof and protrude through edge cutouts 73 and 75 of the insulating member 40 (FIG. 5) into two terminal domes 72 which are shown in FIG Bottom plate 42 are bulged upwards. There they are connected to electrical connection lines 74, which are guided by the edge cutouts 73 and 75 in the connection chamber 58 to the temperature controller 60.

Behind it are cast on the top of the sole plate 22 two spaced apart in a lateral distance mounting lugs 76, to each of which a resilient blade 78 is attached from a poor heat-conducting stainless steel. The blade 78 leads back beyond the end of the sole plate 22 through the connection chamber 58 and is screwed in the rear wall portion with the upper housing part 16 and the lower housing part 14. As a result, the hot part 1 1 and the cold part 13 are connected to each other over long, poor heat-conducting bridges. Since the lamellae 78 are elastically yielding, it is expedient if an ironing pressure exerted on the handle 20 is transferred from the cold part 13 to the hot part 11 by the base plate 42 of the lower housing part 14 or of the water tank 44 being flat with the Supporting surface 96 is supported on the insulating member 40, which in turn flat on the as a support surface 31st serving, elevated areas of the cover plate 30 of the steam chamber 24 is supported. Alternatively, however, the device parts may also have the isolation element relieving, cooperating in load support approaches.

The water tank 46 and the steam chamber 24 terminate a distance behind the front end of the iron 10. In front of the front transverse wall portion of the side wall 26 of the steam chamber 24, the sole plate 22 has a molded upstanding mounting boss 80 with which a mounting bracket 82 from a poorly thermally conductive, resilient Stainless steel sheet is screwed by means of a stainless steel screw 98. The mounting bracket 82 has a central downwardly cranked mounting portion 84 which is bolted to the mounting boss 80 and has two transverse to the longitudinal axis of the steam iron 10 horizontally at a distance below the insulating member 40 extending mounting blades 86 and 88 thereof. These are angled upwards and outwardly at a slight distance between the side edges of the insulating element and the inside of the lower housing wall 44 and further extend at a small distance above the top of the insulating member 40 substantially horizontally inwardly and are bent upwards , cross-over end portions 90 and 92 is screwed to a front of the water tank 46 portion of the bottom plate 42 of the lower housing part 14 by means of a screw 99. As a result, an elastic front connection between the cold part 13 and the hot part 11 is produced.

The insulating member 40 shown by itself in a plan view in FIG. 5 has an inner supporting body 41 made of silica, which is open-cell microporous and evacuated to a certain degree to reduce the gas heat conduction. This supporting body 41 is enclosed in a gas-tight manner in a casing 43 made of thin chromium steel plates, which are connected to one another in a circumferential laterally projecting edge flange 45. The edge flange 45 is slightly against the inner wall of the lower housing part 14 and largely prevents a flow around the insulation element 40 with heated air. A pumping of hot air to the insulating member 40 by working movements is largely prevented by ventilation of the adjacent rooms to the environment through the air gap 23 and the vent opening 94 in the bottom plate 42. In the front region, the insulation element 40 has a passage opening 47 for receiving the control nozzle 66 with a peripheral edge flange 49, the light at the control nozzle 66th is applied. Adjacent to the tip or the front end, edge detents 51 and 53 permit the lateral clasping by the lamellae of the fastening clip 82. From the trailing edge to the front, two edge cut-outs 73 and 75 extend, through which the unheated end sections 71 of the tubular heater 25 project upwards. However, according to a modified embodiment, the insulating element can also end before the end portions 71 of the tubular heater, as indicated by the broken line 77 in Figure 5.

The dry iron 610 shown in detail in FIG. 6 has a device hot part 61 1 with a soleplate 612 and a device cold part 613 arranged above it with a lower housing part 614 made of a high-temperature-resistant plastic and an upper housing part 616 arranged above it. The soleplate 612 comprises a level sole plate 622, in the top of a tubular heater 625 is poured similar to the steam iron. A support member 630 made of aluminum sheet or better, a chromium steel sheet extends at a distance above it, parallel to the sole plate 622, whose flat upper side serves as a support surface 631 for an insulation element 640 lying thereon. All around, the support element 630 has individual downwardly angled edge portions 626 as feet, with which it is supported on the upper side of the sole plate 622, so that an air space 624 is formed underneath. The insulating element 640 is constructed in principle as the insulating member 40 of the steam iron 10, with a shell made of stainless steel, although the front edge retractions and openings can be omitted. On top of that, as long as no ironing pressure is applied, there is loosely a bottom plate 642 of the lower housing part 614, the lower side of which is a supporting surface 696 of the device cold part 613 to cooperate with the upper insulating element 698 forms. From the bottom plate 642, a lower side housing wall 644 extends downwardly and ends with an air gap 623 above the sole plate 622. With sufficient dimensioning of the air space 624 under the support member 630 may possibly be dispensed with the lower insulating member 640th

The soleplate 612 has in its longitudinal central axis an upwardly projecting attachment lug 634, with which a downwardly depressed region 636 of the support member 630 is screwed by means of a stainless steel screw 638. Between the support plate 630 and the attachment lug 634 are an insulation ring 637 made of a thermally insulating material and a mounting blade 682 made of a spring steel, preferably a poorly heat-conducting stainless steel clamped. The mounting blade 682 extends transversely to the longitudinal direction of the device and substantially parallel to the sole plate 622 outwardly and between the edge portions 626 and support legs of the support plate 630 and is engaged in inner recesses 683 of the lower housing side wall 644 to the device cold section 613 with the device-hot part 61 1 in the region of the rear end of the soleplate 612 to connect elastically. In the front region of the soleplate 612 a fastening not shown here of the same type is present. Also in this dry iron 610, the isolation member 640 has a skirt flange 645 sealingly cooperating with the lower shell side wall 644, and the spaces below and above are connected to the atmosphere via the air gap 623 and vent 694, respectively, to pump hot air around the isolation members 640 and 698 to avoid when ironing.

In a modification of the dry iron according to FIG. 6, the support element 630 may be dispensed with and an insulation element may be glued to the bottom plate 642 above it. Also in this case, with sufficient dimensioning of the air space under the insulation element this may possibly have a plastic shell. In this case, the fastening lamellae 682 would be designed to be harder because they must transfer the entire ironing pressure without support via the insulating element. According to another modification, the fastening lamellae may be formed integrally with the support element and be cut free from this more or less.

According to a further modification, the soleplate of a steam iron may also be used for the dry iron to rationalize production, the steam outlet openings being covered by a sheet metal placed underneath. The Dampfkammeransätze the soleplate can wear a cover plate with a support surface for the insulation element.

An in Fig. 7 fragmentary illustrated oven 710 has as a hot part 71 1 of the device a baking muffle 712 with an open towards the front cuboid baking chamber 714, which is enclosed by a muffle wall 16 formed of sheet metal on five sides. The muffle wall 16 has a bottom wall 18, a rear wall 20, a Top wall and side walls 24 and on the open front side of an edge flange 26 which serves for attachment against horizontal displacements and cooperates with a not shown oven door. The underside of the bottom wall 718 forms a support surface 719 against which an insulation element 740 abuts. This has an evacuated insulating support body 741, which is packed in a gas-tight envelope 743 made of a stainless steel foil. The underside of the insulation element 740 is flat and lies flat on two trusses 750 and 752, which are part of a cold part 713 of the device in the form of a not shown conversion housing of the oven 710. The planar upper sides of the trusses 750 and 752 form support surfaces 796 of the cold part 713, which carry the baking muffle 712. In the top of the insulation element 740 grooves 760 and 762 are sunk in which on the reflective sheath 743 tubular heaters 764 and 766 are, which give the bottom heat. The top heat can come from a grill heater in the baking muffle. The insulating member 740 and a resting on the top wall, similar, without radiator gutters, behind and laterally beyond an element thickness on the baking muffle over. In between, a rear vacuum insulation element 840 and not shown lateral vacuum insulation elements are inserted and abut against the baking muffle 712. According to a modified embodiment, the radiator can be arranged above the bottom wall and the insulating element can be formed without grooves.

LIST OF REFERENCE NUMBERS

10 steam irons

1 1 hot part (heated device part)

12 soleplate

13 cold part (unheated part of the appliance)

14 lower housing part

16 upper housing part

18 access opening

20 handle

22 sole plate

23 air gap

24 steam chamber

25 tubular heaters

26 side wall of the steam chamber

28 level

30 cover plate

31 supporting surface of the hot part 1 1

32 bent edge

34 attachment approaches

36 recessed areas of the cover plate

38 screws

40 insulation element

41 insulating material of the insulation element

42 base plate

43 shell of the insulation element

44 lower housing side wall

45 edge flange of the insulation element

46 water tank

47 passage opening

48 advantage 49 edge flange

50 temperature sensors

51 Randing

52 gutter 53 Randeinziehung

54 control line

58 connection chamber

60 temperature controllers

62 Rotary knob (temperature control) 64 Through opening

66 control nozzle

68 control rod

70 steam control button

71 End section of the tubular heater 25 72 Anschlussdom

73 edge section

74 electrical connection cable

75 edge section

76 attachment lugs 77 modified trailing edge of the insulation element

78 fixing lamella

80 attachment lug

82 mounting clamp

84 fixing section 86 fixing lamella

88 fixing lamella

90 end portion of the mounting bracket 82nd

92 end portion of the mounting bracket 82nd

94 Ventilation opening 96 Support surface of the cold part 13

98 screw 610 dry iron

61 1 hot part (heated device part)

612 soleplate

613 cold part (unheated part of the appliance)

614 lower housing part

616 upper housing part

622 sole plate

623 air gap

624 airspace

625 tubular heater

626 angled edge sections (support legs)

630 support element (support plate)

631 support surface

634 attachment approach

636 recessed area

637 insulation ring

638 screw

640 insulation element

641 insulating material of the insulation element

642 base plate

643 Cover of the insulation element

644 lower housing side wall

645 edge flange of the insulation element

694 ventilation opening

696 Support surface of the cold part

697 Edge flange of the insulation element 698

698 insulation element

699 case

710 oven

71 1 hot part (heated device part)

712 baking muffle

713 cold part (unheated part of the appliance)

714 baking space 716 muffle wall

718 bottom wall

719 support surface

720 rear wall

724 side wall

726 edge flange

740 insulation element

741 insulating material

743 Case

750 traverse

752 Traverse

760 gutter

762 gutter

764 tubular radiator

766 tubular radiator

796 support surface

840 insulation element

Claims

claims

A heated household appliance, in particular iron (10; 610), with a hot part (1 1; 61 1; 71 1) having a heater (25; 625; 764,766) of the appliance (10; 610; The apparatus and the thermal insulation arranged between the hot part and the cold part, characterized in that the insulation has an insulation element (40; 640, 740, 840) with a thermal insulation element (40; 640, 740, 840) Having cells

Insulation (41, 641, 741) has, and the gas heat conduction is reduced in the cells.

2. Household appliance according to claim 1, characterized in that for reducing the gas heat conduction, the cells of the insulating material (41, 641; 741) are smaller than the free path of the molecules of a gas contained in the cells.

3. Household appliance according to claim 1 or 2, characterized in that for the reduction of the gas heat pipe, the cells are evacuated and the insulating material (41, 641; 741) of a gas-tight envelope (43; 643, 699) is surrounded.

4. Household appliance according to claim 3, characterized in that the sheath (43; 643) has a foil made of a metallic material.

5. Household appliance according to claim 3 or 4, characterized in that the sheath (699) comprises a plastic film, which is preferably coated with metal.

6. Household appliance according to one of claims 3 to 5, characterized in that the casing (40; 640, 699) has an edge flange (45; 645, 697) which for preventing or reducing air currents around the insulating element (40; 640 .

740, 840) cooperates with a wall surface (housing side wall 44, 644) and preferably abuts against or extends towards it.

7. Household appliance according to one of claims 1 to 6, characterized in that the insulation has two successively arranged in the direction of the heat flow insulation elements (640, 698) with insulating material (641) with reduced gas heat pipe and the heat from the part (61 1) isolated isolation element (64 698) is evacuated and has a gas-tight envelope (699) with a plastic film.

8. Household appliance according to one of claims 1 to 7, characterized in that between the heater (25; 625) of the hot part (1 1; 61 1) and the insulating element (40; 640, 698) a thermal additional insulation of another kind, e.g. an air space (624) or vapor space (24) is arranged.

9. Household appliance according to one of claims 1 to 8, characterized in that the hot part (1 1; 61 1; 71 1) and the cold part (13; 613; 713) of the device supporting surfaces (31, 96; 631, 696; 719 , 796) for cooperation with surfaces of the insulating element (40; 640, 698; 740).

10. Household appliance according to one of claims 1 to 9, characterized in that the insulating element (740) at least partially supports the hot part (740) (Fig. 7).

1 1. Household appliance according to one of claims 1 to 10, characterized in that the hot part (1 1; 61 1) and the cold part (13; 613), bypassing the insulating element (40) and the insulating elements (640, 698) to each other are attached

12. Household appliance according to one of claims 1 to 1 1, characterized in that the hot part (1 1; 61 1) and the cold part (13; 613) by at least one mounting blade (78, 82; clamp 682) are connected.

13. Household appliance according to claim 12, characterized in that the fastening lamella (78, clamp 82, 682) from an attachment point on the hot part (1 1;

61 1) is guided at a distance from hot regions of the hot part between the insulating element (40, 640, 698) and the hot part to a side edge of the insulating element

14. Household appliance according to claims 12 or 13, characterized in that the fastening lamella (78, 82; clamp 682) surrounds a side edge of the insulating element (40; 640, 698).

15. Household appliance according to one of claims 12 to 14, characterized in that the fastening plate (78, 82; clamp 682) is resilient.

16. Household appliance according to one of claims 1 to 15, characterized in that at least one of the spaces (24; 624) between the insulating element (40) and the insulating elements (640, 698) and on the one hand the Hei ßteil (1 1, 61 1 ) and, on the other hand, the cold part (13; 613) are in each case in communication with the environment through a ventilation opening (94; 694 and air gap 23; 623).

17. Household appliance according to one of claims 9 to 16, characterized in that the support surfaces (31) of the hot part (1 1) or of the cold part and / or the insulation element have a groove (52) in which the mounting plate and / or a Line (54) extends to the edge of the insulating element.

18. Household appliance according to one of claims 1 to 17, characterized in that the insulation element (40) for the passage of lines (water control nozzle 66, tubular heater 25, 71) or a mounting blade (clamp 82) has a through hole (47) or an edge recess (51, 53, 73, 75) (Fig. 5).

19. An iron, in particular according to one of claims 1 to 18, whose hot part (1 1; 61 1) comprises a soleplate (12; 612) with a sole plate (22; 622) having the heater (25; 625), characterized the hot part has a support plate (cover plate 30, support element 630) arranged at a distance above the sole plate with a support surface (31, 631) for the insulation element (40, 640, 698).

20. iron, in particular dry iron (610) according to claim 19, characterized in that the support plate (support member 630) angled edge Ab- has cuts (626) which rest on the sole plate (622).

21. Iron, according to claim 19 or 20, the hot part (1 1) a steam generating chamber (24) having a at a distance above the sole plate (22) extending top wall (30), characterized in that the top wall as a support plate serves.