Classifications

• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C15/00—Details
  • F24C15/10—Tops, e.g. hot plates; Rings
• • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
  • F24—HEATING; RANGES; VENTILATING
  • F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
  • F24C7/00—Stoves or ranges heated by electric energy
  • F24C7/08—Arrangement or mounting of control or safety devices
  • F24C7/082—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination
  • F24C7/083—Arrangement or mounting of control or safety devices on ranges, e.g. control panels, illumination on tops, hot plates

Definitions

• the present invention relates to a cooking appliance with a cooking plate and in particular a fixed cooking appliance intended to be integrated in a bay formed in a cooking plane. work or in a cooker or mobile cooking appliance that can be moved manually and easily.
• a cooking plate appliance comprises a cooking plate, for example glass-ceramic, on which can be positioned a pan, a pan or any other utensil may contain food to be heated or cooked, or on which can be positioned directly food to heat or cook.
• This cooking appliance generally also has a box having a bottom and side walls forming a base inside which is (or are) positioned (s) one (or more) element (s) heating (s) , such as radiant or halogen foci, as well as regulating means for varying the power thereof, or even to program their release and stop.
• the hob closes the top of the box.
• the present invention relates more particularly to a hob for a fixed or mobile cooking appliance comprising on the one hand a base plate, in particular a glass-ceramic base plate, having at least one cooking zone and on the other hand comprising at least one cooking zone.
• a control and / or information zone said control and / or information zone being formed by a window separated from said base plate by at least one plastics gasket.
• connection between the window and the base plate is a permanently elastic connection according to document.
• This connection is not rigid and the window can move to use. This movement is harmful for the perception of the display of the screen through the window.
• the object of the invention is to overcome the drawbacks of the prior art and to provide an easy to implement and inexpensive solution to ensure the reliable and accurate positioning and the reliable and accurate fixing of a display screen relative to a window formed in a cooking plate and through which the display of this screen is viewed.
• the present invention thus relates in its broadest sense to a cooking plate for a fixed or mobile cooking appliance comprising a base plate, in particular a vitroceramic base plate, having at least one cooking zone and comprising at least one control and / or information area, said control area and / or information being formed by a window separated from said base plate by at least one plastic gasket, characterized in that said gasket comprises means for fixing a control screen and / or display under said window.
• the present invention thus proposes to use directly the gasket which is provided at least partly around the window, between the window and the base plate, to position and fix the control and / or display screen vis-à-vis of this window.
• the window which is thus located above the control and / or display screen is transparent in order to allow to see what is displayed on the screen; she is in a material different from that of the base plate; the screen is LCD, LED or OLED and maybe a touch screen.
• Fixing the screen to the seal is preferably a mechanical attachment and is thus not a chemical fixation (especially bonding).
• the seal preferably has a central portion which is located both facing at least a portion of the edge of the window and facing a portion of the periphery of the cut-out hole. in the base plate and which welcomes the window.
• said gasket preferably has an inner seal portion extending under an inner surface of said base plate and / or under an inner surface of said window. This inner part thus makes it possible to increase the mechanical strength of the connection between the gasket and respectively said base plate and / or said window.
• This part of the inner seal may have, for example, under the inner surface of the window, in vertical section, a form of C or L.
• the cooking plate can comprise:
• a sole which is integrated at least partially, or completely, in a portion of material of said seal and on the other hand at least one projecting element projecting at least partially, or completely, outside said joint, for the fixing said control and / or display screen;
• said seal has an outer seal portion extending over a central seal portion and optionally extending to an outer surface of said baseplate and / or an outer surface of said window.
• the present invention also relates to a fixed or mobile cooking appliance provided with a cooking plate according to the invention.
• the present invention also relates to several methods of manufacturing the cooking plate according to the invention.
• a first method of manufacturing the cooking plate according to the invention said base plate and said window are arranged in a mold which is then closed and a synthetic material is then injected into a molding cavity to form said seal comprising means for fixing the control and / or display screen.
• a preformed seal and having means for fixing the control and / or display screen is glued to said base plate and / or said window .
• said seal comprising means for fixing the control and / or display screen is molded against said base plate or against said window, said window or respectively said base plate being then introduced into a groove of a frame formed by the joint when the one is hot.
• the present invention makes it possible, in a simple and effective manner, in a cooking plate, to position accurately in the three dimensions of the space and to fix precisely in the three dimensions of the space a control screen and / or viewing vis-à-vis a window located above.
• Positioning accuracy and fixing accuracy can be as high as one tenth of a millimeter.
• the seal according to the invention makes it possible to protect the edge of the window, even if this window is not in the surface continuity of the plate (projecting with respect to the external surface of the plate but parallel to the plate) or if this window is inclined with respect to the plate.
• the seal according to the invention makes it possible to ensure fluid tightness between the edge of the window and the periphery of the hole made in the plate, even if this window is not in the continuity of the surface of the plate. (protruding from the outer surface of the plate but parallel to the plate) or if this window is inclined relative to the plate.
• the solution of the invention is applicable even when the control zone and / or information is located on the edge of the hob.
• control and / or display screen is attached to the seal makes it easy to change the screen if need (in case of faulty screen): just access under the hob and undo the means for fixing the screen; in addition, it is easy and inexpensive to proceed to change the faulty screen by a properly functioning screen which will in turn be accurately positioned and precisely fixed vis-à-vis the window; it is not necessary to change the base plate, the window, or to redo the joint between the base plate and the window.
• FIG. 1 illustrates a schematic view from above of a cooking plate according to the invention with a base plate comprising a complete hole and a window in this hole;
• FIG. 2 illustrates a partial vertical sectional view along AA 'of FIG. 1;
• FIGS. 3 to 6 respectively show a section equivalent to that of FIG. 1 for other embodiments of the invention.
• FIG. 7 illustrates a schematic view of another base plate according to the invention notched to accommodate a window
• FIG. 8 illustrates a sectional view of an exemplary embodiment of a mold for producing the seal according to one embodiment of the seal according to FIG.
• FIGS. 9 to 11 respectively show a view from above of a portion of the mold of FIG. 8 and a partial vertical sectional view along B-B 'and along C-C of FIG. 9.
• Figure 1 illustrates an embodiment of a cooking appliance according to the invention.
• the apparatus illustrated here thus has a generally parallelepipedal right shape.
• the apparatus illustrated here is a fixed cooking appliance, also called “integrated appliance”, which is intended to be installed in an opening made in a worktop or in a stove and which, once installed and fixed, can no longer be moved; however, the present invention is also applicable to a mobile cooking appliance, being in the form of a box and which can be positioned for example on a worktop or a dining table and can be moved manually.
• the cooking apparatus comprises a cooking plate 1 which is flat and which has a general shape of parallelepiped right (that is to say, rectangle or square view from above).
• This cooking plate 1 comprises a base plate 2 which can be in particular a glass-ceramic plate.
• the baseplate may also have a top view, a circular shape, or bean, or trapezoidal; the only form constraint is that related to the method of manufacture of the base plate.
• the base plate 2 has a flat outer surface 21 intended to be positioned horizontally and on which the cooking utensils (pans or other) to be heated to rest;
• the cooking plate 1 according to the invention is considered to be positioned horizontally and the positions: under / below and on / above are made with respect to the vertical.
• the base plate 2 here has four cooking zones 3, 3 ', 3 ", 3"', represented here by circles of different diameters, but which can be of any shape.
• the cooking plate 1 also comprises a control and / or information zone 4.
• a heating element such as a radiant or halogen element and / or at least one gas burner and / or at least one induction heating coil.
• a heating element such as a radiant or halogen element and / or at least one gas burner and / or at least one induction heating coil.
• the power supply of the heating element has not been illustrated.
• the control zone and / or information 4 is the place where it is possible to control the operation of each cooking zone 3, 3 ', 3 ", 3"' and / or where it is possible to view information relating to the operation of each cooking zone 3, 3 ', 3 ", 3"'.
• the single control and / or information zone 4 is the place from which it is possible to independently control the operation of all the cooking zones 3, 3 ', 3 ", 3"' and where it is it is possible to independently display information relating to the operation of all these cooking zones 3, 3 ', 3 ", 3"'; however, there could be for example two control and / or information areas, with for each control and / or information zone the possibility of independently controlling the operation of two of the four cooking zones and the possibility of viewing independently of the information relating to the operation of these two cooking zones.
• control and / or information zone may control other apparatus (s) and / or to display information relating to other apparatus (s) ( s), or even visualize any type of information.
• the control and / or information zone 4 is formed by a window 5 which is made of a material different from that of the base plate 2.
• the base plate 2 when the base plate 2 is glass-ceramic, its constituent material prevents a clear and precise transmission of information through.
• the Kerablack black glass-ceramic base plate marketed by Eurokera has a light transmission in the visible range of about 1.5% (integrated value, measured according to the illuminant D65) and a blur in the visible higher than 95%.
• the window 5 is preferably made of glass, optionally tempered thermally or chemically or optionally hardened. It is transparent, with a light transmission integrated in the visible higher than 70% (measured for example according to the illuminant D65); it is clear and has a blur of less than 50%.
• the window 5 is separated, without direct physical contact, from the base plate 2 by a seal 6 of synthetic material, non-mineral.
• the window 5 has a top view of the shape of a rectangle and is positioned in a hole of similar shape but a little wider and a little longer than the window and which has been formed beforehand in the base plate. 2.
• This hole is a hole opening in the direction that it opens on the outer surface 21 of the base plate 2, as well as on an opposite surface: the inner surface 22 of the base plate 2 (not visible in Figure 1) ; this parallelepipedic hole is a complete hole in the sense that its entire outer periphery is formed on the outer surface 21 and all its inner periphery is formed on the inner surface 22.
• the window may also have, seen from above, a circular shape, or bean, or trapezoidal; the only constraint of form is that related to the mode of manufacture of the window.
• said seal 6 comprises means for attachment, directly or indirectly to the seal 6, in the three dimensions of the spaces x, y, z, of a control screen 7 and / or display under the window 5, so that the orientation of said screen relative to the window 5 is unchanged as soon as the screen is fixed rigidly to said window and it is then possible to view the display of the screen 7 through the window 5.
• the screen 7 is thus correctly parallel to the window 5 and the visualization of the display is ideal. There is no deformation of the image through the window 5.
• the window is attached on its edge to the base plate 2 only by the gasket 6.
• the seal 6 is thus present on the entire periphery of the window 5, or in any case along the periphery of the window 5 which is opposite the base plate 2.
• the seal 6 thus has a central portion 60 which is located both vis-à-vis at least a portion of the edge 50 of the window 5 and vis-à-vis a portion of the periphery 20 of the hole formed in the base plate 2 and which accommodates the window 5.
• this central portion 60 may be located opposite at least a portion of the edge of the window 5 over the length and / or the height of the edge 50 and this central seal portion 60 may be located opposite at least a portion of the periphery 20 of the hole along the length and / or the height this hole.
• said gasket 6 preferably has an inner seal portion 62 extending under the inner surface 22 of the plate 2 and / or under the inner surface 52 of the window 5.
• the seal 6 has an inner seal portion 62 which preferably extends both under the inner surface 22 of the plate 2 and under the inner surface 52 of the window 5, as illustrated with reference to FIGS. , in order to improve the mechanical strength between the window 5 and the base plate 2 via the gasket 6.
• the gasket 6 itself which makes it possible to directly hook up the screen 7; to do this, the inner seal portion 62 has, in the inner surface 52 of the window 5, in vertical section:
• the C or L shape is sufficiently elongated to form a rail to accommodate two sides of the screen 7.
• the screen can thus be slid under the window 5 in the groove 63 by the right or left; it is also possible to provide that a left or right edge of the gasket 6 is also provided with an L-shaped or C-shaped inner seal portion 62 so that the screen is held on three sides once properly positioned under the window 5.
• This insert is preferably metallic, with a coefficient of expansion which is preferably relatively low and which is adjusted to the thermal constraints of manufacture of the seal 6 and operation of the cooking appliance.
• the insert can be perforated so that the material of the seal penetrates through the performances and thus increases the mechanical cohesion between the insert and the seal.
• the insert may be positioned at least partly in the central part of the seal 60 and / or in the outer joint portion 61 and / or in the inner seal portion 62.
• This accessory may be for example an insert as indicated above, but having on the one hand a sole 80 which is integrated at least partially or completely into a portion of material of the gasket 6 and on the other hand at least one salient element 81 protruding at least partially, or completely, outside said seal 6, for fixing said screen 7 control and / or visualization.
• the projecting element 81 extends approximately perpendicular to the general plane of the sole 80.
• the sole 80 may be provided along two left and right edges of the window 5 (with reference to the positioning of Figure 1). It reinforces the mechanical connection between the gasket 6 and the screen 7.
• the salient element 81 can be in various forms:
• the projecting element is a screw 82, welded to the sole 8 at its upper end and provided with a thread in its lower part to allow to screw a nut; preferably, two screws are provided at least along each of the two left and right edges of the window 5 to allow to retain a support 85, fitted on the screws 82 and on which the screen 7 is fixed and thus allow the fixing the screen indirectly to the gasket 6 in the three dimensions of the space;
• the projecting element is a support 83 curved (or clip) L-shaped; two supports 83 are preferably provided along each of the two left and right edges of the window 5 in order to position and fix the screen 7 correctly under the window 5; for better restraint, it is possible to provide that the screen is sandwiched on each left side, right, between the support 83 and the inner seal portion 62; this support 83 can be manufactured for example by folding. in FIG.
• the insert is an H-shaped rail 84; a rail 84 is preferably provided along each of the two left and right edges of the window 5 to allow the screen 7 to slide on the rails to position it correctly under the window 5; for better restraint, it is possible to provide that the screen is sandwiched on each left side, right, between the projecting portion of the rail 84 and the inner seal portion 62; this rail can be manufactured for example by extrusion.
• the protruding element could be a clip in the manner of known clips for fixing glazing in the bay of a body.
• a nut is attached (for example welded) to a projecting part of an insert.
• the window 5 has the same thickness as the base plate 2 and that the outer surface 51 of the window 5 is exactly in continuity with the outer surface 21 of the window. base plate 2.
• the window 5 it is also possible for the window 5 to be thinner than the plate 2 and for the seal 6 to be able to compensate for this difference in thickness to allow the outer surface 51 of the window 5 to be exactly in line with the surface. outside 21 of the base plate 2; in this case, the inner surface 52 of the window 5 is set back from the inner surface 22 of the base plate 2 upwards.
• the central joint part 60 makes it possible to provide a surface continuity between the outer surface 51 of the window 5 and the outer surface 21 of the base plate 2 by filling in a fluid-tight manner very exactly the space available between these two surfaces.
• the window 5 has the same thickness as the base plate 2, but an outer seal portion 61 extends above the central seal portion 60.
• the outer seal portion 61 extends on the outer surface 21 of the base plate 2 and on the outer surface 51 of the window 5; however, it is possible to provide that the outer seal portion 61 extends very exactly just above the central seal portion 60, being in the vertical continuity of the central seal portion 60 without overflowing on the outer surface 21 of the base plate 2 and / or on the outer surface 51 of the window 5.
• the outwardly protruding ends of the outer joint portion 61 are preferably at a non-straight angle, i.e., at a cut angle or a rounded angle.
• the window 5 has substantially the same thickness as the base plate 2 and the inner surface 52 of the window 5 is also set back from the inner surface 22 of the base plate 2, upwards.
• the window 5 allows a magnifying effect vis-à-vis the screen 7 for any observer looking at the screen 7 of the top of the window 5, or via a glass sheet having a particular focal length, either by means of a transparent polymer film glued against the inner surface 52.
• the window 5 is not positioned parallel to the base plate 2, but inclined with respect to this plate, by an angle a between 2 ° and 45 °, even between 5 ° and 25 °.
• FIG. 7 another base plate 2 is shown: unlike the base plate of Figure 1, only two cooking zone 3, 3 'are provided. Moreover, unlike the base plate of FIG. 1, the hole that accommodates the control and / or information zone 4 is not a complete hole, but a partial hole, along one of the edges of the base plate 2 (here the right edge).
• this hole is a hole opening in the direction that it opens on the outer surface 21 of the base plate 2, as well as on its inner surface 22, but this hole is not a complete hole in the sense that its periphery, both on the outer surface and on the inner surface, is not closed.
• the gasket 6 is present only along three edges of the periphery of the window 5, or in any case along the periphery of the window 5 which is opposite the glass plate. base 2.
• the window 5 extends beyond the edge (here the right edge) of the base plate 2 in which is formed the notch which forms the hole.
• this hole is preferably formed by cutting the base plate 2 before the ceramization step in the case of a vitroceramic base plate.
• the window 5 is compatible with a touch screen 7 by providing a conductive transparent film against the inner surface 52.
• the base plate is not flat; In this case, at least in part along the periphery of the hole in the base plate, the outer surface of the window has a shoulder, inwardly or outwardly.
• the base plate 2 In a first solution, called “encapsulation”, illustrated with reference to FIGS. 8 to 11, the base plate 2, the window 5 as well as means for the fixation of the control screen and / or display are all arranged in a mold portion 90 and another mold portion 91 is closed on the previous; A molding cavity 92 is formed between these two mold parts, this cavity having the desired shape of the seal 6 (here the shape of the seal of Figure 3).
• the molding cavity 92 has recesses 93 for positioning the screws 82 before molding so that the sole 80 of each screw is positioned in the mold cavity but the threaded portion of each screw is protected so that the material of the seal does not come into contact with the thread when molding the joint.
• a synthetic material is injected into the molding cavity to form the seal 6 comprising means for fixing the control screen 7 and / or visualization.
• This solution is particularly convenient to implement when the seal has an insert because it ensures the correct positioning of the insert vis-à-vis the elements introduced into the mold: the base plate 2 and the window 5 .
• FIGS. 9 to 11 illustrate a way of correctly positioning the base plate 2 with respect to the mold part 90 and the window 5 with respect to this mold part 90.
• the mold part 90 thus comprises retractable centering elements 95 for centering the base plate 2 vis-à-vis the mold part 90, as well as fixed centering elements 96 for centering the window 5 screws. with respect to the mold part 90.
• the mold it is not necessary for the mold to accommodate the whole of the base plate 2; it can be provided that the molding is operated only on a part of the base plate 2, the part which has the hole in which the window 5 is fixed thanks to the seal 6.
• the seal 6 comprising means for the rigid fixing of the control screen 7 and / or visualization is molded against the base plate 2 or against the window 5; then, the window 5 or respectively the plate 2 is then introduced into a groove of the frame formed by the gasket 6 when the gasket is hot and the window 5 is then fixed to the base plate 2 by retraction of the material constituting the gasket 6, without chemical adhesion between the seal and the window or respectively the base plate.
• the groove of the frame accommodating the window 5 is formed by the central seal portion 60, the outer seal portion 61 extending on the window 5 and the inner seal portion 62 extending under the window 5.
• the groove of the frame accommodating the base plate 2 is formed by the central seal portion 60, the outer seal portion 61 extending on the base plate 2 and the inner seal 62 extending under the base plate 2.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Cookers (AREA)
• Electric Stoves And Ranges (AREA)
• Baking, Grill, Roasting (AREA)
• Induction Heating Cooking Devices (AREA)
• Food-Manufacturing Devices (AREA)
• Lining Or Joining Of Plastics Or The Like (AREA)

Applications Claiming Priority (2)

Publications (2)

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• 2011
  • 2011-09-26 FR FR1158537A patent/FR2980556B1/fr not_active Expired - Fee Related
• 2012
  • 2012-09-14 DE DE202012013229.6U patent/DE202012013229U1/de not_active Expired - Lifetime
  • 2012-09-14 ES ES12773039.8T patent/ES2562856T3/es active Active
  • 2012-09-14 US US14/346,200 patent/US10060633B2/en active Active
  • 2012-09-14 KR KR1020147007673A patent/KR101957888B1/ko active IP Right Grant
  • 2012-09-14 JP JP2014532446A patent/JP6014151B2/ja active Active
  • 2012-09-14 WO PCT/FR2012/052061 patent/WO2013079833A1/fr active Application Filing
  • 2012-09-14 EP EP12773039.8A patent/EP2761227B1/de active Active
  • 2012-09-14 CN CN201280046891.3A patent/CN103930726B/zh active Active
• 2018
  • 2018-07-31 US US16/050,789 patent/US20180363919A1/en not_active Abandoned

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