EP2712267B1 - Induction cooking hob with a housing - Google Patents

Description

The invention relates to an induction hob with a housing part for the induction hob to cover a bottom of the induction hob.

From the DE 202007001432 U1 It is known to attach a housing part as a cover on the underside of a hob. This is to protect the inside of the hob from dirt and damage during installation and operation.

From the DE 202009012872 U1 It is further known to provide such a housing part as a cover in an induction hob, wherein it may advantageously be made of plastic.

From the DE 93 05 316 U1 is a cooktop for gas burners or electric hobs known, which consists of several parts. The items are put together laterally and form a housing part. In the items are designed as a special supply pipes or feed channels for gas to the gas burners of individual gas hobs of the hob. Thus, an additional piping and their assembly costs can be saved. By juxtaposing the individual parts to each other, the individual line sections are gas-conducting and sealed together.

From the WO 2004/060020 A1 For example, an induction hob with a cooktop panel and a plurality of inductors underneath is known, which are arranged in a housing. The housing may have two integrally formed plastic profile parts of the housing bottom. These plastic profile parts themselves can in turn be attached to a hob frame, for example, be screwed. In this case, the two plastic profile parts at a distance from each other, since they are only slightly wider in size than the inductors themselves.

From the EP 1 445 544 A1 An induction hob is known. This has a support plate, which accommodates heating elements, a plastic housing which extends below the support plate, is detachably connected thereto and accommodates an electronics for controlling the heating elements, and a glass ceramic plate which extends above the support plate via the heating elements, releasably with this is connected and on its top takes up cookware. The plastic housing consists of mirror-image segments which are integrally or detachably connected to each other or provided completely separate.

Task and solution

The invention has for its object to provide an induction cooktop with a housing part mentioned above, with which problems of the prior art can be avoided and it is particularly possible to form such a housing part safe and cheap and versatile and inexpensive to manufacture.

This object is achieved by an induction hob with the features of claim 1. Advantageous and preferred embodiments of the invention are the subject of further claims and are explained in more detail below. The wording of the claims is incorporated herein by express reference.

It is envisaged that the housing part has at least two individual parts, which consist of plastic. Under items here are larger flat components to understand and no small parts such as screws or the like .. With the housing part is mainly a bottom of a hob to be covered and protected, as stated above. If the housing part is made of plastic, it is also possible to provide an electrically insulating cover which thus protects against contact with live parts.

According to the invention it is provided that at least these two items are identical and are arranged in identical or rotated arrangement on the housing part. These two then form either together or advantageously together with other items, the housing part. The inventive use of several identical items allows for easier production, since the reduction of the size of the individual parts compared to the housing part of the cost of tools and presses or plastic injection molding machines falls disproportionately. The later handling is easier because not so large parts or not always the entire housing part must be handled. Furthermore, it is possible to produce different housing parts, which always have the same items or the same two items. By the provision of further individual parts or differently formed parts, in particular arranged laterally or in between, an adaptation to the respective desired hob can then take place. Other parts can therefore still come as a total modular design of a housing part. By the possibility of the arrangement in an identical manner or twisted, in particular rotated by 180 ° in the surface of the housing part, a greater variance in the composition is possible.

According to the invention, the plurality of individual parts are designed and arranged so that they each extend over an entire width of the entire housing part, wherein this housing part is then oblong rectangular. Along the length of the housing part, the several items are placed together or connected to each other. This means that the length of a single part corresponds to the width of the housing part, the length of the housing part but is significantly larger and is formed from the width of composite items and other parts.

An inventive induction hob has just said parts or items as a housing part as a cover on its underside. In this case, an attachment of the housing part to the underside of the induction hob can be done by a fixed connection to connecting means, which are advantageously adhered to the underside of the hob. Particularly advantageously, the housing part consists only of the aforementioned items without further housing-like components of it, in particular only two, three or four such items.

In a further embodiment of the invention may also be provided that further parts of the housing part are also formed identical to each other, but just in a different way than the aforementioned items. Thus, the idea of the modular and simplified construction of a housing part can advantageously be continued. These other parts may be identical to each other or twisted to each other.

It is possible that the identical items essentially have a cover function and no other functions. Especially with a hob, they can serve to cover or shield the heating devices. However, the heating units are not attached to the housing part or the individual parts, but advantageous to a hob plate above. The other aforementioned parts of the housing part can be used for covering, but advantageously also for receiving, a controller and / or power electronics and / or electrical connections for the heaters. In this case, parts of it may even rest against these other parts or be attached thereto, because these other parts can exercise more than just a covering function here.

In an embodiment of the invention can be provided that identical to each other formed items in an outer region of the housing part and form, for example, a left edge and a right edge. They can advantageously be rotated or rotated by 180 ° to each other arranged as a symmetrical arrangement. In a central region lying further parts of the housing part may, if there are several, also be formed identical to each other. They can be arranged in the same orientation, alternatively rotated or rotated by 180 °.

A symmetry of the items allows their arrangement identical to each other or rotated by 180 ° to each other. A symmetry is there advantageously an axis symmetry through a middle of long sides of an elongated item.

Advantageously, the individual parts may have recesses, which are in particular designed as ventilation openings. Thus, especially in induction cooking fields, a cooling air supply and thus cooling of the induction heaters take place. Ventilation openings should be arranged rather on the edge than in a central region of an item, in particular also not to weaken its stability too much.

In an advantageous embodiment of the invention, the individual parts of the housing part, in particular together with the aforementioned other parts, without tools are connected to each other or secured to each other. This can be done by plugging or terminals, under certain circumstances by non-detachable connections such as welding or friction welding or ultrasonic welding and gluing. A screw connection is possible because it holds reliably and can be solved again.

Advantageously, the finished housing part has inherent stability, so that it not only holds together as a whole flat and forms a flat cover, but just support and / or support function may have for the hob or functional units of the hob.

Therefore, an attachment of the items together and possibly with other parts is advantageously stable.

Overall, the housing part may be formed like a trough, so that it may extend with a peripheral edge on the one hand to a hob plate or the bottom. On the other hand, it has sufficient space or depth for the functional units, in particular the heaters. The said tub can be formed both from the individual parts and possibly even from other parts. Advantageously, the entire tub is formed only of the individual parts, particularly advantageous from two to four items. A named peripheral edge is formed particularly advantageous from all the individual parts and possibly even from other parts of the housing part, preferably only from the individual parts.

The inventive use of the items, advantageously two items, as well as other parts of it can be created a kind of modular design for a housing part for a hob. Depending on the structure and size of the hob, a certain number of these parts can be combined. It is also possible that a said item, for example, serves as a cover for two heaters or induction heating of a hob and another part for receiving its power supply, in particular control and power electronics. From a plurality of such pairs, a housing part for an entire hob can then be assembled, which may also be modular and has a varying number of such pairs of heaters.

These and other features will become apparent from the claims but also from the description and drawings, wherein the individual features each alone or more in the form of sub-combinations in an embodiment of the invention and in other fields be realized and advantageous and protectable Represent embodiments for which protection is claimed here. The subdivision of the application into individual sections as well as intermediate headings does not restrict the general validity of the statements made thereunder.

Brief description of the drawings

Fig. 1

eine Schrägansicht auf ein erfindungsgemäßes Gehäuseteil, bestehend aus zwei auseinander gezogenen Einzelteilen,

Fig. 2

das Gehäuseteil entsprechend Fig. 1 mit einem zwischen die beiden Einzelteile eingesetzten Zwischenteil,

Fig. 3

ein komplettes Induktionskochfeld in Seitenansicht mit dem Gehäuseteil aus Fig. 2 an der Unterseite,

Fig. 4

eine Abwandlung des Gehäuseteils aus Fig. 2 mit zwei Zwischenteilen zwischen den Einzelteilen,

Fig. 5

eine weitere Abwandlung des Gehäuseteils aus Fig. 2 ohne Zwischenteil zwischen den Einzelteilen und

Fig. 6

eine weitere Abwandlung des Gehäuseteils entsprechend Fig. 5 mit dem rechten Einzelteil um 180° in der Gehäuseebene gedreht.

Embodiments of the invention are shown schematically in the drawings and are explained in more detail below. In the drawings show:

Fig. 1

an oblique view of an inventive housing part, consisting of two separated parts,

Fig. 2

the housing part accordingly Fig. 1 with an intermediate part inserted between the two parts,

Fig. 3

a complete induction hob in side view with the housing part Fig. 2 on the bottom,

Fig. 4

a modification of the housing part Fig. 2 with two intermediate parts between the individual parts,

Fig. 5

a further modification of the housing part Fig. 2 without intermediate part between the parts and

Fig. 6

a further modification of the housing part accordingly Fig. 5 with the right part rotated by 180 ° in the housing plane.

Detailed description of the embodiments

In the Fig. 1 an inventive housing part 11 is shown with a left item 13a and a right item 13b. The parts are made of plastic, advantageously by plastic injection molding. Clearly visible, the two individual parts 13a and 13b are identical and mutually rotated by 180 ° in the plane formed by them. The items each have a recessed well region 14a and 14b that is open towards the center. In the opposite direction as well as the upper edge and lower edge, the well regions 14a and 14b are bounded by tub edges 16a and 16b. On the outside run outer edges 17a and 17b, which are used in particular for connection to an induction hob. While the well regions 14a and 14b are substantially closed, the raised regions around them have openings 20a and 20b. These serve to supply cooling air and possibly also to save material. The openings 20a and 20b are divided by stiffening webs.

In the Fig. 2 a first variant of a finished housing part 11a is shown in which in the arrangement according to Fig. 1 between the two items 13a and 13b, an intermediate part 22 has been inserted. This intermediate part 22 also has a recessed tub area 14c and a tub rim 16c. Since this is pulled all the way up at the top, it almost coincides with the existing there outer edge 17c almost together. The lower outer edge 17c of the intermediate part 22 also runs in a line with the outer edges 17a and 17b of the individual parts 13a and 13b on these two longitudinal sides.

Furthermore, the intermediate part 22 in the lower region fastening means 23, preferably for cables or other functional units of a finished induction cooktop, for example, a control or control or power components. At the other end, a fan opening 24 is provided, which is formed in a manner known per se. It may also be a kind of border or air duct for the fan opening 24 may be formed.

In the Fig. 3 an induction hob 26 is shown with a conventional hob plate 27, preferably made of glass ceramic. At the bottom of the housing part 11a is corresponding Fig. 2 arranged or attached to holders 29, for example screwed. These holders 29 may be formed in many ways and be, for example, sheet metal angle, which are permanently bonded to a bottom of the hob plate 27. Furthermore, these holders 29 may be formed circumferentially and cooperate with the outer edges 17a, 17b and 17c of the housing part 11, so as to achieve a substantially closed training. Indicated by dashed lines are induction heaters 28, which are arranged in the region of the individual parts 13a and 13b, in the plane of the drawing in each case two in succession per well region 14a and 14b. In the region of the intermediate part 22, not shown power electronics and control for the induction hob 26 is provided. Furthermore, in Fig. 3 it can be seen that louvers 25 are provided at the front outer edge 17c of the intermediate part 22, that is to say below the fastening devices 23. Here, air that has been sucked through the fan openings 24, emerge again.

In Fig. 4 is a further alternative embodiment of a housing part 11 b shown. Similar Fig. 1 are two items 13a and 13b provided, but pulled a little further apart. In between are two intermediate parts 22a and 22b, each of which may be formed exactly as in Fig. 2 shown. In this respect, it is referred to. With this housing part 11 b, a slightly different induction hob be built, especially with modified power electronics. Alternatively, further induction heating devices can also be arranged in the large region of the well regions 14c and 14d. It can also be seen that the two intermediate parts 22a and 22b are each provided in the same orientation.

In Fig. 5 is a further variant of a housing part 11 c shown. This consists of the Fig. 1 only from the two individual parts 13a and 13b, which are directly connected or assembled together. Although the region formed by the well regions 14a and 14b is not particularly large, it may be sufficient for arranging different functional units of a hob, for example two or four induction heating devices, which have integrated power electronics as structural units.

Yet another alternative embodiment of a housing part 11 d is in Fig. 6 to see. In this are in modification to Fig. 5 the two individual parts 13a and 13b arranged in the same direction or identical, ie in comparison to Fig. 5 the right item 13b rotated by 180 ° in its plane.

The exact attachment of the items 13 as well as the intermediate parts 22 to each other and the induction hob 26 is not shown here. This is easy to imagine for the expert. Furthermore, it is easy to imagine in the according to Fig. 1 at the top and bottom as a double edge running outer edge 17 a and 17 b a seal or the like. use. Likewise, here can be an elongated holder Fig. 3 intervention.

Claims (13)

1. Induction cooking hob (26) with a housing part (11) for the induction cooking hob to cover a bottom side of the induction cooking hob, wherein the housing part (11) has at least two individual components (13a, 13b) made of synthetic material and disposed as a housing part (11) in a twisted arrangement, wherein said two individual components (13a, 13b) compose the housing part (11) either conjointly or together with further individual components (22, 22a, 22b), wherein the housing part is arranged as a cover on the bottom side of a cooking hob plate (27) of the induction cooking hob (26), wherein the plurality of individual components (13a, 13b, 22, 22a, 22b) extend over an entire width of the housing part (11) and said plurality of individual components (13a, 13b, 22, 22a, 22b) are adjoined along the length of the housing part and interconnected to a structural unit, characterized in that the at least two individual components (13a, 13b) are identical.
2. Induction cooking hob according to claim 1, characterized in that the individual components (13a, 13b, 22, 22a, 22b) of the housing part have been interconnected to a structural unit prior to attachment to the bottom side of the induction cooking hob (26).
3. Induction cooking hob according to claim 1 or 2, characterized in that the further components (22, 22a, 22b) of the housing part are designed as a holder for functional units (24) of the induction cooking hob (26), in particular for a control and/or power electronics and/or connecting devices.
4. Induction cooking hob according to claim 3, characterized in that the further components (22, 22a, 22b) of the housing part (11) are likewise identical to each other.
5. Induction cooking hob according to any one of the preceding claims, characterized in that the identical individual components (13a, 13b, 22, 22a, 22b) are intended and configured essentially, in particular completely, only for covering, in particular for covering of heating devices (28) of the induction cooking hob (26) to the bottom.
6. Induction cooking hob according to any one of the preceding claims, characterized in that the individual components (13a, 13b) located in an exterior region of the housing part (11) are identical to each other and in particular disposed in a twisted arrangement in relation to each other, wherein further components (22, 22a, 22b) located in a central region are identical to each other and arranged in the same orientation.
7. Induction cooking hob according to any one of the preceding claims, characterized in that the individual components (13a, 13b, 22, 22a, 22b) have an axially symmetrical design.
8. Induction cooking hob according to claim 7, characterized in that the individual components (13a, 13b, 22, 22a, 22b) are axially symmetrical to an axis of reflection in the plane of the housing part (11), wherein preferably the axis of reflection passes the centre of the long sides of elongate individual components (13a, 13b, 22, 22a, 22b).
9. Induction cooking hob according to any one of the preceding claims, characterized in that the individual components (13a, 13b, 22, 22a, 22b) have recesses (25), in particular as ventilation openings (25).
10. Induction cooking hob according to any one of the preceding claims, characterized in that the individual components (13a, 13b, 22, 22a, 22b) of the housing part (11) are interconnected or attached to each other via tool-less fixation, in particular by plugging-in or clamping.
11. Induction cooking hob according to any one of the preceding claims, characterized in that the housing part (11) has a trough-type design.
12. Induction cooking hob according to claim 11, characterized in that the individual components (13a, 13b, 22, 22a, 22b) compose at least part of the trough, advantageously the entire trough, wherein preferably all of the individual components compose part of a circumferential boundary (16) of the trough.
13. Induction cooking hob according to claim 1, characterized in that the housing part (11) is composed exclusively of the individual components (13a, 13b), without any further housing-type structural components thereon.

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