EP0223168B1 - Plaque de cuisson électrique et dispositif pour sa connexion - Google Patents

Plaque de cuisson électrique et dispositif pour sa connexion Download PDF

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Publication number
EP0223168B1
EP0223168B1 EP86115497A EP86115497A EP0223168B1 EP 0223168 B1 EP0223168 B1 EP 0223168B1 EP 86115497 A EP86115497 A EP 86115497A EP 86115497 A EP86115497 A EP 86115497A EP 0223168 B1 EP0223168 B1 EP 0223168B1
Authority
EP
European Patent Office
Prior art keywords
hotplate
underside
connection
cover
electric
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP86115497A
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German (de)
English (en)
Other versions
EP0223168A1 (fr
Inventor
Robert Kicherer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
EGO Elektro Geratebau GmbH
Original Assignee
EGO Elektro Gerate Blanc und Fischer GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by EGO Elektro Gerate Blanc und Fischer GmbH filed Critical EGO Elektro Gerate Blanc und Fischer GmbH
Priority to AT86115497T priority Critical patent/ATE54529T1/de
Publication of EP0223168A1 publication Critical patent/EP0223168A1/fr
Application granted granted Critical
Publication of EP0223168B1 publication Critical patent/EP0223168B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H05B3/70—Plates of cast metal
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B3/00—Ohmic-resistance heating
    • H05B3/68—Heating arrangements specially adapted for cooking plates or analogous hot-plates
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B2203/00—Aspects relating to Ohmic resistive heating covered by group H05B3/00
    • H05B2203/016—Heaters using particular connecting means

Definitions

  • the invention relates to an electric hotplate according to the preamble of claim 1.
  • the electric hot plate In the case of electric hot plates there is on the one hand the need for a compact stacking for storage and transport and on the other hand the electric hot plate should be as simple as possible, namely in particular largely automated, attached to a hob and securely connected to the appliance lines.
  • the electric hotplate is inserted into an assembly opening of the hob, supported against the edge of this assembly opening against contact forces and connected to the device lines on the underside of the hob.
  • the width of the mounting opening is usually only slightly larger than the greatest width of the part of the hotplate body engaging in it, which is given in the region of an outer, annular cast flange edge of the hotplate body.
  • the underside of the hotplate is suitable for stacking, but this usually leads to the connecting sections for connecting the device lines being relatively difficult to access.
  • the part of the hob is designed which has to be inserted through the mounting opening into the hob. If this part has protruding members on the outer circumference of the hotplate, in particular connecting sections or flexible connecting lines, it may be necessary for the hotplate to be inclined relative to the hob, which can make assembly difficult, particularly in the case of its automation.
  • the connection sections are formed only by short stubs protruding over the insulating piece, simple insertion of the hotplate into the hob is possible, but access to the connection of the device lines can be relatively complicated.
  • connection sections are formed only by short stubs protruding over the insulating piece, which either protrude vertically downwards in the position of use or at a small angle in the direction are angled towards the center of the hotplate body. This makes access to the connection of the device lines relatively complicated, especially if the connection is to be made by a welded connection.
  • an electric hotplate with flexible connecting sections has become known, which in particular makes the assembly or insertion of the hotplate in the hob more difficult, for example due to an automated working process.
  • an electric hotplate has also become known, on the underside of which a connecting piece projecting beyond the outer circumference is fastened, to which the connecting lines of the heating resistors are connected. In this case too, the electric hotplate must be installed with parts protruding over the outer circumference.
  • the invention has for its object to provide an electric hotplate of the type described, which ensures automatic handling, in particular with regard to the stacking, with a simple structure.
  • the hotplate is suitable for use, for example, with the interposition of a cardboard coated with foam film or a similar flat body with the same type or the same hot plates can be stacked one on top of the other in such a way that hot plates lying one above the other are arranged axially with one another.
  • the hot plates can be alternately supported with their cooking surfaces and their undersides, or they can be stacked in a particularly advantageous manner in the same orientation so that adjacent hot plates with a cooking surface and a bottom face each other, in each case expediently the lowest hot plate with the cooking surface facing downwards.
  • the assembly is considerably simplified in that, in the transport and assembly position, the connection sections of the connecting lines in view of the hotplate body extend at most to its outer circumference, in particular at most to the inner circumference of an outer flange edge of the hotplate body and can be converted into a standing connection position are.
  • connection sections can be transferred from the transport and assembly position to the connection position in which they protrude beyond the outer circumference and / or the underside of the hotplate after the hotplate has been inserted into the hob, they are very easily accessible for connection.
  • the connection sections expediently form approximately parallel to the outside of the hotplate, intrinsically stiff, but resiliently movable and essentially straight plug or connection pins, which are preferably formed in one piece by at least one joint or by the passage through the insulating piece and via the The outer circumference of the hotplate can protrude relatively far.
  • the non-flexible connecting sections which can then only be deformed using relatively large bending or kinking forces, can be connected to the appliance lines in their connecting position from the outer circumference of the hotplate, for example in a plug-in movement, whereby they compensate for any slight deviations in position compared to the connecting members due to their resilient mobility.
  • connection section in particular, if the transport and assembly position of the connection sections is the same position as a connection position, it is expedient if one, in particular, for the part of the connection section lying between the insulating piece and the outer circumference of the hotplate body in the underside of the outer flange edge and / or the cover groove-shaped, receiving recess is provided so that the connection section can protrude beyond the outer circumference of the hotplate, but does not protrude beyond the underside of the hotplate and therefore does not impair the stackability in any way.
  • connection section From the position engaging in the receiving recess, the connection section can be bent away from the underside of the hotplate into an oblique position or into a position perpendicular to the underside of the hotplate and can thereby be transferred into a preferred connection position.
  • the connection sections can also be arranged such that they are pressed back into the receiving recess under the stack pressure and spring out over the underside of the hotplate when the stack pressure is released.
  • the design according to the invention can also advantageously take into account the disadvantages that arise from the fact that during operation of the hotplate in the immediate vicinity of its underside, relatively high temperatures occur, which can impair or damage both the connection connections and the device lines .
  • connection connections and the device lines can be moved in an area in which no excessive temperatures occur due to the design according to the invention.
  • the connecting lines themselves are designed over their entire length so that they are resistant to the high temperatures.
  • the object on which the invention is based can also be achieved in an advantageous manner in that a common connecting piece is provided for all connecting sections, the separate connecting elements arranged next to one another on an insulating body and threading guide means for the connecting pins in the region of their front ends has, so that even with automated assembly, a long-lasting connection between the connecting sections and connecting piece or the device lines connected to them is ensured.
  • the connector thus contributes to the correct orientation of the connector sections before the final connection or before reaching its end position.
  • guiding surfaces can be provided on the one hand on the insulating body and on the other hand on the connecting members or on both parts, which are expediently arranged in such a way that they have an alignment effect in at least two coordinate directions.
  • the connecting piece has connecting or aligning members which are insulated from the connecting members for direct engagement in the hotplate, so that an exact positional alignment and possibly a direct load-bearing connection of the connecting piece with respect to the hotplate can be achieved in a simple manner.
  • the insulating body expediently protrudes with a larger part of its total length over the outer circumference of the hotplate, so that the device lines adjoining its outer end are relatively far away from the hotplate and therefore do not have to be particularly temperature-resistant.
  • connection sections can also be aligned with the hotplate by a separate centering member before assembly, this centering member engages the connection sections at a distance from the bushing through the insulating piece and expediently leaves the ends free at least over a short length.
  • the centering member which can be transferred from a stacking position into an assembly position, is advantageously arranged so that when connecting the connecting piece it gradually releases the connecting sections over the entire length over which they engage in the connecting piece.
  • connection elements and the connection sections can be made by resistance welding, spot welding, inert gas welding and in particular by non-contact welding, such as laser welding. But it can also be done by squeezing the connecting member, by clamping screws or by pure, if necessary releasable plug connections, which is particularly advantageous when hot plates have to be replaced or replaced.
  • connections mentioned are also suitable for connecting the connecting members to the device lines, any possible combination between the types of connection mentioned being possible with the device lines being conceivable to adapt to the respective requirements.
  • the risk of the heating resistor connecting lines being torn from their connection to the heating resistors when the hotplate is stacked or during assembly by moving the connecting sections inside the hotplate can be substantially reduced by the fact that the inner sections of the connecting Lines are secured against the hotplate in such a way that movements of the connecting sections are not transmitted to them.
  • the hotplate according to the invention is particularly suitable for automatic stacking and for automatic assembly using automatic handling machines (robots).
  • robots automatic handling machines
  • both the hotplate and the connecting piece or its insulating body each have at least one positioning member, by means of which the position of the hotplate or the connecting piece can be precisely recognized by the handling machine and this position can be secured.
  • a device for attaching the connection piece to the electric hotplate is characterized according to the invention in that a gripper is provided which moves the connection piece in three coordinate directions with respect to the connection sections in order to bring them into engagement one after the other with the guide surfaces, so that they can be easily moved results in a precise alignment of the connector sections with respect to the connector.
  • a gripping and aligning device is provided for the connection sections, preferably two gripping jaws being provided, at least one of which has a comb-like gripping surface with centering cutouts for the connection sections.
  • the centering cutouts can be delimited in a simple manner prismatic, for example V-shaped.
  • the electric hotplate 1 has a one-piece cast-iron body 2, the upper side of which forms a flat cooking surface 3 which is provided with a recess in the center and is therefore ring-shaped, but free of openings.
  • The, for example, circular hotplate body 2 forms a circumferential collar 4 adjoining the cooking surface 3, the outer circumference of which determines the greatest width or the largest diameter of the hotplate body 2 and on the underside of which a jacket-shaped or apron-shaped flange edge 5 which is slightly offset inwards relative to this outer circumference , whose lower end face determines the underside of the hotplate body 2.
  • one, two or more heating resistors 7 in the form of heating coils are laid in grooves extending spirally about the central axis 6, which are separated from one another by correspondingly spiraling, rib-shaped intermediate webs of the cast body, which are pressed into a mineral-pressed insulating mass relative to the hotplate body 2 are embedded without contact.
  • this field is delimited by an inner flange edge 70 of the cast body corresponding to the outer flange edge 5, this flange edge 70 expediently projecting less far downward than the outer flange edge 5.
  • the hotplate body 3 has a center pin 8 which projects over its underside approximately as far as the flange edge 5 and is provided with a threaded bore.
  • the underside of the electric hotplate 1 or of the space enclosed by the flange edge 5 is closed with a cover 9 made of sheet metal, which bears under tension with an outer ring edge 10 on the lower end face of the flange edge 5.
  • the cover 9 formed by a lid-like embossed or deep-drawn part, the outer circumference of which is formed by the approximately the same width as the outer circumference of the flange edge 5 having the edge surface of the ring edge 10, is at least one, in particular two or more, lying outside the central axis 6, screws 11 and nuts engaging in eye-shaped widenings of the flange edge 70 against the underside of the hotplate body 2 and thus against the end faces of the central pin 8 and the flange edge 5, the screws 11 being countersunk in depressions in the underside of the cover 9 such that the screws 11 do not protrude beyond the regions of the underside of the cover 9 which lie essentially in one plane, namely in the plane of the ring edge 10.
  • the threaded hole of the center pin 8 is accessible through an opening in the cover and is used to fasten the hotplate in a hob.
  • the cover 9 has only areas which form depressions on the underside, that is to say are set back upwards with respect to this underside. These areas are formed, in particular, by an approximately closed annular groove-shaped depression 12, which is immediately adjacent to the ring edge 10, and by an approximately rectangularly delimited depression 13 in the bottom view, which lies symmetrically to an axial plane 14 of the hotplate in the area of the interruption of the annular groove 12.
  • a support ring 15 made of sheet metal is provided, which closely surrounds the outer circumference of the flange edge 5 over a small part of its height and to support the electric hotplate 1 on the edge of the mounting opening in a hob or the like serves.
  • the support ring 15 can be approximately U-shaped in cross-section, its outer ring leg expediently running obliquely in cross-section downwards to the outside.
  • the heating resistors 7 have end pins 16 fastened at their ends, which protrude downward from the insulating bed and lie completely in the space between the underside of the hotplate body 3 and the cover 9. At these end pins 16, the ends of inner sections 18 of heating resistor connecting lines 19 are fastened, these inner sections 18 between an insulating piece 20 and the associated end pin 16 being substantially straight or parallel to the cooking surface 3 with a distance between the underside of the hotplate body and the cover 9 run.
  • connecting lines 17 are led out through side-by-side through openings 21 at right angles to the cooking surface 3 in the insulating piece 20 downward from the hotplate or through the cover 9, the through openings 21 on both sides of the axial plane 14 in a common to this Lie level and the insulating piece 20 is approximately symmetrical to the axial plane 14.
  • the sections 18 are angled approximately at right angles adjacent to the inside of the insulating piece 20 or to the associated, conically widened end of the respective through opening 21 and can lie with this angled section essentially free of play at least in a narrow outer section of the respective through opening 21.
  • the respective connecting line 17 is in turn provided with a bend 22 such that it forms an outer, straight-line connection section 19 following this bend is parallel to the axial plane 14 and is directed against the area of the flange 5 closest to the insulating piece 20.
  • the connecting lines 17 are thus angled in the area of the passage through the insulating piece 20, in some cases approximately U-shaped or in part Z-shaped.
  • the connecting lines are formed from the direct connection to the heating resistors or their end pins to the ends of the connecting pins by one-piece, curved, temperature-resistant solid wire pieces, in particular made of chromium-nickel alloy, which are preferably directly on the underside.
  • the advantageously made of steatite insulating piece 20 passes through a window-like opening 23 that closely surrounds it with its boundary in the bottom of the recess 13 of the cover 9 parallel to the underside and is supported with a shoulder surface on the inside of the edge of the cover 9 surrounding the opening 23. With on both sides of the through openings 21 and the Connecting leads over their inside protrusions 24, the insulating piece 20 is also supported on the underside of the hotplate body 3 in the area in which the heating resistors 7 are located.
  • the outer ends of the through openings 21 lie in a region of the insulating piece 20 which is provided approximately in the plane of the bottom of the recess 13 and is surrounded by a circumferential, projecting edge 26 which, however, does not protrude to the underside of the cover 9. Cutouts 25 are provided in the long sides of this edge 26, the connecting sections 19 crossing the edge 26 at right angles in the region of the associated cutout 25.
  • a less deep receiving recess 27 is provided in the underside of the cover 9 between the latter and the ring edge 10, which extends over the ring edge 10 in the area of a corresponding cutout in the flange edge 5 and in which the connection sections 19 lie in this way that they do not protrude beyond the underside of the cover 9 and their ends extend beyond the outer circumference of the flange 5.
  • connection sections 19 lie in a common plane perpendicular to the axial plane 14 or to the central axis 6, which plane can also be inclined to the underside of the cover 9 or to the cooking surface 3 at a few angular degrees such that the connection sections 19 move away from their underside to their free ends and lie with these free ends at a distance from the underside of the rest of the hotplate. All connection sections 19 are of equal length or so long that their free ends flattened transversely to the common plane lie in a common plane perpendicular to the axial plane 14.
  • the hotplate has on its underside, namely in the lower end face of the flange edge 5, a positioning member (not shown in detail) in the form of a cutout, in which the cover 9 engages with a cam which is shaped out of its ring edge 10.
  • a positioning member (not shown in detail) in the form of a cutout, in which the cover 9 engages with a cam which is shaped out of its ring edge 10.
  • the bend of the respective connecting line 17 lying directly on the underside of the insulating piece 20 is designed as a predetermined bending point or as a joint 22a in that the associated wire in this area is weakened in cross section by squeezing.
  • the hinge axis is expediently parallel to the underside of the hotplate 1a, such that the connection section 19a can be pivoted from its transport and assembly position shown in solid lines in FIG. 3 by about 180 ° into the connection position shown in broken lines, in which it corresponding to the design of FIG. 1.
  • the receiving recess 27a is provided in the cover 9a so that it receives the connection section 19a in its transport and assembly position directed from the insulating piece 20a to the center of the hotplate 1a, while the connection section 19a in the connection position below the underside of the cover 9a or the flange 5a.
  • the joint of the respective connection section 19b is provided between its angled portion 22b or the insulating piece 20b and the region of the flange edge 5b or the ring edge 10b of the cover 9b which is closest and by means of a screw torsion -Spring 71 is formed, to which the connecting line 17b, for example made of spring wire, is bent in this area.
  • the spring 71 In the extended position of the connecting section 19b when the spring 71 is relaxed, the spring 71 has a single spring turn of 360 °, connecting tangentially to the rectilinear, aligned parts of the connecting section 19b, that is to say essentially laterally next to the latter the side facing away from the axial plane 14b.
  • the springs 71 are offset from one another in the longitudinal direction at adjacent connecting sections 19b, the two outer springs 71 being in pairs closer to the insulating piece 20b and the two middle springs 71 closer to the flange edge 5b.
  • the respective outer or freely ending part of the connecting portion 19b serving as a connecting pin can be pivoted away from the axial plane 14b about an axis perpendicular to the underside or to the cooking surface 3b until its end on the inner surface of a Stop 72 serving serving shoulder of the cover 9b, which forms a transition between the ring edge 10b and the bottom of the receiving recess 27b.
  • the springs 71 including the adjoining parts of the connection sections 19b, have enough space so that they do not protrude beyond the underside of the cover 9b in the said transport and assembly position.
  • the springs 71 are wound by the straight parts of the connecting sections 19b coming from the insulating piece 20b in the direction towards the bottom of the receiving recess 27b, so that the free end parts of the connecting sections 19b bear against this floor in the transport and assembly position.
  • By slightly lifting the connection sections 19b from the cover 9b their free end parts are released from the stop 72, so that they jump into the extended connection position indicated by dash-dotted lines in FIG. 5.
  • FIG. 5 In the embodiment according to FIG.
  • the bends 22b have two bending points lying directly adjacent to one another, namely an approximately right-angled bend directly adjoining the lower end of the through-opening 21b and a hairline that adjoins the center of the hotplate needle-shaped opposite bend, so that there is advantageously a strain relief for the connecting line 17b.
  • One leg of the hairpin-shaped bend merges rectilinearly into the associated part of the connection section 19b, this bend being at least partially recessed in the underside of the insulating piece 20b.
  • a common connecting piece 31 is provided for connecting all connecting sections 19b, which in an insulating body 32 made of steatite or the like has a number corresponding to the number of connecting sections 19b parallel to one another and immediately adjacent to one another, has electrically conductive connection members 33 which extend only over part of the length of the insulating body 32 and are arranged completely concealed within the latter.
  • device lines 34 are connected via crimped or clamped connections 35, these device lines 34 being flexible, that is to say easily bendable or limp and, in each case, lines such as copper strands surrounded by a separate insulating jacket in the area of their transition into the connecting piece 31 with the front ends of the connecting members 33.
  • connection members 33 are designed in the region of their front ends in the manner of plug pins which have approximately the same cross section or diameter as the connection sections 19b.
  • the pins of the connecting members 33 are connected to each other in alignment with the connecting sections 19b by a crimp connector designed as a butt connector in the form of a crimp sleeve 36, which is expediently squeezed before being connected to the connecting member 33 or before being inserted into the insulating body 32 is attached to the connection section 19b and forms that as a plug-in sleeve over this projecting part, which abuts the stop 72 in the transport and assembly position.
  • connection sections 19b When connecting the connection sections 19b, these are inserted into the insulating body 32, then the connecting members 33 of the device lines 34 formed by wire end sleeves are inserted into the crimp sleeves 36 and then secured by joint crimping with the crimp sleeve 36.
  • two mutually aligned engagement openings 53 are provided in the insulating body 32 in the region of each crimping point.
  • the connecting members 33 lie in the vicinity of the end of the insulating body 32 remote from the insulating piece 20b and at a distance outside the outer circumference of the hotplate in an area in which only relatively low temperatures prevail during their operation.
  • the springs 71 lie completely recessed within pocket-shaped openings in the insulating body 32, which in turn connects almost directly to the insulating piece 20b and is inclined downward at a few degrees to its outer end, in such a way that it presses under the force of the resiliently upward Connection sections 19b on the underside of the ring edge 10b and the flange edge 5b supports.
  • the side view of the extremely flat, almost plate-shaped insulating body 32 has in the region of its front end on the upper side at least one hook member 56 which is formed in one piece with it and which can be hooked into a corresponding plug-in opening in the bottom of the receiving recess 27b and thereby in the alignment of the connecting piece 31 contributes to the hotplate both in the direction of insertion depth and transversely to the underside of the hotplate and in lateral directions.
  • the associated end of the connector 31 thus engages in the receiving recess 27b.
  • the connecting member 33c can also be formed directly by the crimp sleeve, which is already attached to the associated end of the device line 34c before connection to the hotplate.
  • the engagement openings 53c for the crimping tool are located in the regions of the connecting piece 31c into which the connecting sections 19c are to be inserted.
  • the connecting piece 31c or the insulating body 32c is at a distance from the insulating piece 20c, its end facing this being provided approximately in the region of the flange edge 5c. 8, a direct connection between the insulating body 32c and the cover 9c is not provided, but the connection piece 31c is carried freely by the connection sections 19c, in the embodiment according to FIG.
  • a plug-in profile 56d is provided, which is provided by the shorter leg of an angled sheet profile is formed.
  • This sheet profile carries on its underside the insulating body 32d of the connector 31d.
  • the plug profile 56d engages in a corresponding opening in the underside of the cover 9d, in particular in the bottom of the receiving recess 27d, and carries the actual connector 31d d together with the connector sections 19d.
  • At the ends of each a connection socket is fastened, which has a connection hole for inserting the device line and a clamping screw for releasably clamping the device line within its section lying in the insulating body 32d.
  • a corresponding plug-in connection is also conceivable, which can be designed to be detachable or so self-locking that after a single plug-in it is no longer possible to detach the device line or the connection section without destruction.
  • the crimp sleeves especially in the case of the design according to FIGS. 6 and 7 or according to FIG. 8, are expediently made of corrosion-resistant steel and can be relatively thick-walled; they can also be designed for an overlapping parallel connection.
  • the screw 11 is formed by a stud screw, which is exposed with a threaded section in the associated depression of the cover 9 and, if necessary, to prevent the hotplate from rotating 10 can be used so that the corresponding screw in the recess in the cover 9h is relatively low, namely with its bottom wall adjacent to the end face of the eye-like widening not in the plane of the end face of the Flange edge 70h, but lies approximately in the plane of the end face of the flange edge 5h.
  • the depression is sufficient for receiving the head of a cap screw 11h or a nut that counteracts a stud according to the design according to FIG. 1.
  • a connecting piece 31i is provided, the connecting members 33i of which extend over the entire length of the insulating body 32i and protrude freely over the front end thereof.
  • the connecting members 33i are designed in the manner of plug sockets, in this area they are U-shaped in cross-section approximately up to the connection of the device lines 34i and the opening between the U-legs is provided by an inner surface of the Receiving opening in the insulating piece 32i is covered, so that a closed cross-section over the circumference, partly delimited by the connecting element 33i and partly by the insulating piece 32i, the socket opening 36i is formed, the width of which is less than twice the diameter of the connecting portions 19i.
  • the freely projecting front ends of the connecting members 33i which are designed in the manner of wire end sleeves, form threading-in guide means and, for this purpose, have a cross-sectional shape which is not completely closed over the circumference.
  • this cross-sectional shape is approximately rectangular at an angle with a rounded transition zone between the angle legs, the radius of curvature of which corresponds to the radius of curvature of the semicircular crossbar of the aforementioned U-profile and is flush with it.
  • a shorter angle leg 38 of this angle profile 37 lies in the connected position parallel to the common median plane of the connecting pins 19i, namely on its side facing away from the cover 9i, and is aligned with the associated U-leg of the connecting element 33i, from which it forms a continuous continuation.
  • the other, longer angle leg 39 is at right angles to this and is directed towards the underside of the cover 9i, this angle leg 39 being formed by a correspondingly deformed end section of the other U-profile leg of the connecting member 33i and in this profile leg having a smooth surface on the inside. flat, continuously curved guide section 42 merges.
  • the inner surfaces of the angled legs 38, 39 form two guide surfaces 40, 41 which are at right angles to one another and merge into one another via a concave fillet, of which the guide surface 41 is continuously curved into the inner surface of the guide section 42 and thus, like the guide surface 40, continuously into the associated inner surfaces of the Socket opening 36i merges.
  • the angle leg 38 connects with its outer surface to a shoulder surface 43 of the insulating body 32i which covers the freely projecting ends of the connecting members 33i or the angle profiles 37 over part of their length and which is formed by a corresponding projection which extends over the width of the insulating body 32i is.
  • This projection or the shoulder surface 43 lies on the side of the connecting members 33i or the angle profiles 37 facing away from the cover 9i, the shoulder surface 43 being able to form a continuation of the guide surfaces 40.
  • the angle legs 38 and the guide surfaces 40 of all connecting members 33i protrude in cross-section in the same direction, that is to say that the threading-in guide means are oriented identically in all connecting members.
  • the electric hotplate 1i is shown in its preferred mounting position, namely with the cooking surface 3i underneath, and the hob 44 engaging in the support ring 15i is indicated by dash-dotted lines.
  • the connecting piece 31i is moved toward the connecting sections 19i in parallel or in alignment with the connecting sections 19i using a gripper (not shown).
  • the gripper engages in two positioning members 45 i of the connecting piece 31 provided on the side of the insulating body 32 i, which are formed by lateral cutouts or depressions, so that in addition to a positionally correct mounting of the connecting piece 31, a positive connection in the plug-in direction is also ensured.
  • the connecting piece 31 i is moved towards the connecting sections 19i in such a way that they are still a short distance from the extensions of the guide surfaces 40, 41 which are intended in the plug-in direction, that is to say in any case they lie in the angle or plug-in space enclosed by them come.
  • the connecting piece 31i is moved in two mutually perpendicular coordinate directions 46, 47 at right angles to the insertion direction arrow 48, these coordinate directions being parallel or at right angles to the planes of the guiding surfaces 40 , 41 and are each directed in the direction perpendicular to the associated guide surface 40 or 41, in which this guide surface points.
  • the connector 31 is first moved in the coordinate direction 47 perpendicular to the guide surface 41 until the connecting portions 19i abut the respectively associated guide surface 41, after which the connector 31 i is moved in the coordinate direction 46 perpendicular to the guide surface 40 until the connection - Also attach sections 19i to this guide surface 40.
  • the connection sections 19i are thus exactly opposite Aligned over the socket openings 46 so that the connector 31 can be plugged completely in the direction of arrow 48 on the connector portions 19i designed as pins, for example until the front ends of the connecting members 33i or the angle profiles 37 lie in the region of the bends 22i come.
  • connection sections 19i are then fixedly connected to the connecting members 33i within the connecting members 33i, that is to say between their front and rear ends or between the front and rear ends of the insulating body 32i.
  • This can be done, for example, in an advantageous manner by contactless welding, for which purpose an access opening 49 is provided on the side of the insulating body 32i facing away from the cover 9i in the region of each connecting member 33i.
  • the connecting piece 31 i or the insulating body 32i is formed as a flat body of approximately constant thickness when viewed in side view or in the direction of insertion, which is oblong-rectangular in plan view with connecting members 33i lying alongside one another over its width.
  • the insulating body 32i On its side facing the cover 9i, the insulating body 32i has protruding, knob-shaped latching members 50 near its front end, to which corresponding latching openings or latching depressions 51 in the bottom of the receiving recess 27i are assigned.
  • the two locking recesses 51 lie in a view of the underside of the hotplate on both sides of the group of connection sections 19i.
  • the latching members 50 snap into the latching depressions 51 when the connector 31i is plugged onto the connector sections 19i, so that the insertion depth with which the connector sections 19i engage in the connector 31i is precisely defined.
  • the design can be provided such that the latching members 50 are pressed into the latching depressions 51 by the spring force of the connection sections 19i and are thereby secured in their latched position.
  • the connector 31 i lying obliquely to the underside of the electric hotplate 1i, corresponding to the connecting sections 19i projects relatively far beyond the outer periphery of the flange rim 5i or the hotplate body 2i, so that the device lines 34i lie at a relatively large distance from the electric hotplate.
  • each connection section also forms an articulation zone in the form of a desired bending point, through which the connection section is in particular about a central axis perpendicular to the axial plane 14 with respect to the rest of the hotplate, preferably at least up to a right angle the underside of the projecting position can be pivoted.
  • the connector can, if necessary, also lie vertically below the insulating piece 20i, the bending of the connector sections advantageously taking place only after the connection to the connector.
  • this joint zone 22k of the connecting line 17k is formed by two cross-sectional weakenings 52 lying directly adjacent to one another on both sides of the bend, these cross-sectional weakenings being able to be formed by squeezing the solid piece of wire and having their smaller cross-sectional extent at right angles to the joint axis.
  • the cross-sectional weakenings which have a stiffening effect in the manner of flat profiles, can also be provided directly adjacent to the bend next to one another at the associated end of the connecting section, so that the bend and the joint zone lie next to one another and do not coincide.
  • the connecting members 33m are formed by sockets protruding freely over the front end of the insulating body 32m, which are bent from sheet metal strips and are therefore longitudinally slotted. At a distance from the front end of the insulating body 32m, the connecting members 33m have conical extensions 37m as threading and guiding means for the connecting sections. Furthermore, the insulating body 32m has a stop 50m on its associated side, which can abut the outer periphery of the flange edge of the hotplate body and thereby determine the insertion depth for the connection sections.
  • the projecting connecting members 33m are particularly suitable for connection to the connecting sections by spot welding or non-contact welding, such as laser welding.
  • the insulating body 32m has, in the area of each connecting member 33m passing through it, an engagement opening 53m for a crimping tool, with which the connecting members 33m are deformed by squeezing within the insulating body 32m in such a way that they are secured in the longitudinal direction with respect to the insulating body 32m are.
  • the engagement openings 53m can be provided side by side on the side facing away from the hotplate, on the side facing it or on both sides, preferably in each case in alignment with one another.
  • a guide surface 40n namely the guide surface parallel to the common central plane of the connection sections, is formed by the insulating piece 32n, namely by a shoulder surface similar to the shoulder surface 43 according to FIG .
  • This shoulder surface is only or flag-shaped extensions of the connecting members 33n interrupted, which engage in groove-shaped depressions in the shoulder surface such that the guide surfaces 40n are approximately aligned with the associated inner boundaries of the socket openings 36n, these inner boundaries being formed by the associated U-profile legs of the connecting members 33n.
  • each guide surface 40n passes continuously between two guide and connection lugs 39n, each connection lug 39n forming a guide surface 41n lying at right angles to the guide surface 40n.
  • the guide surfaces 40n in contrast to the embodiment according to FIGS. 11 to 13, point away from the underside of the hotplate, so that the associated coordinate direction 46n is directed in the opposite direction.
  • the insulating body 32n In addition to the access openings 49n for contactless welding located adjacent to the front end of the insulating body 32n, the insulating body 32n also has at least one engagement opening 53n for a crimping tool or the like for each connecting member 33n. on.
  • the freely projecting ends of the terminal lugs 39n are for the connection to the terminal sections by resistance welding or the like. suitable.
  • connection section 19p For each connection section 19p, a separate, groove-shaped receiving recess 27p is provided in the underside of the cover 9p, which is made between a relatively narrow circumferential groove 54 adjoining the ring edge 10p and the recess 13p for the insulating piece 20p in the cover 9p.
  • each connection section 19p is secured against lateral movements and thus any corresponding bending even during transport or during stacked storage.
  • the connecting members 33r of the connecting piece 31r according to FIGS. 22 and 23 form freely over the front end of the insulating body 32r protruding, closed, sleeve-shaped sockets 36r, the inner bore of which is flared at the front end in a funnel shape or at an acute angle.
  • the connecting members 33r are expediently formed by thick-walled tube sections made of corrosion-resistant steel or a similarly high-temperature-resistant, electrically conductive material and can be mechanically firmly connected to the connecting pins by simply squeezing them together.
  • the connecting members 33s are formed by relatively thick-walled steel sleeves, which are flared at their front ends to form threading and guiding means for the connecting pins by non-cutting deformation.
  • threaded clamping screws 55 are guided in such a way that they engage in the side flanks of the oval cross section of the connecting members 33s in accordance with FIG. 29 and are therefore guided particularly securely.
  • the clamping screws 55 are used to connect the device lines 34s, which are thus releasably attached.
  • connection members 33s are connected to the connection sections by crimping.
  • the insulating body 32s is fastened to an essentially U-shaped plug body 56 which is bent from sheet metal and which can be designed, for example, to be plugged onto a mating connector of the cover.
  • the plug body 56s which partially encompasses the insulating body 32s for securing the position, projects in the direction of the arrow 48s from the connecting members 33s and can be provided in the region of its front end with the latching members 50s in the form of features.
  • the plug body 56s lies on the side of the insulating body 32s facing the hotplate, which it covers with respect to the hotplate.
  • the connecting members 33t are oval or long round in cross-section throughout their length, so that the connecting sections are also inserted into long-round socket openings, the larger cross-sectional extent of which is perpendicular to the common central plane of the connecting sections .
  • clamping screws 57 are also provided which are exposed in front of the insulating body 32t at the projecting ends of the connection members 33t in such a way that their threads engage in the mutually parallel, flat inner flank surfaces of the socket openings.
  • the insulating body 32u of which receives the connecting members completely sunk compared to its extension in the direction of insertion has a much larger width and can be designed in the manner of a luster terminal.
  • only a single clamping screw 37u is provided on each connecting member 33u, which clamps the end of the associated connecting section 19u, which is expediently widened by squeezing, overlapping against the associated end of the device line 34u and thus directly against it.
  • This end of the device line 34u can be welded or the like. be attached to the connecting member 33u or it can be detachably fixed at the same time as the connecting section 19u by the clamping screw 57u.
  • connection sections 19u are also recessed in the insulating body 32u.
  • this design is suitable for the connection sections 19u to be transferred into a position approximately at right angles from the underside of the hotplate, so that the connection piece 31u and the device line 34u, provided that the space under the hob allows it, are relatively wide are located below the electric hotplate.
  • each connecting member 33v can also be designed such that they can be connected to the connecting sections via a pure, preferably self-locking plug connection.
  • each connecting member 33v is formed by an approximately U-shaped sheet metal profile, the leg of which lying towards the front of the connecting piece 31v has a plug-in opening for the respective connecting section.
  • This plug-in opening can be delimited by a barb-like locking member 57v, which hooks in the connecting section in such a way that it no longer releases it in the opposite direction to the plug.
  • a plug opening is expediently provided for a plug 58 attached to the device line 34v in such a way that it can be inserted releasably.
  • All device lines 34v are attached directly adjacent to their associated ends or plugs 58 in the correct position on a web-shaped connecting piece 5g, so that they can be connected together as a block to the connecting piece 31v.
  • the embodiment according to FIG. 34 differs from this essentially in that the front ends of the connecting members 33w assigned to the connecting sections are formed by angle profiles 37w lying freely in front of the insulating body 32w or similar threading and guiding means, so that the connecting sections can be connected by welding.
  • protruding parts are provided on the hotplate 1y over the underside of the cover 9y, so that these are essentially only for one.
  • Stacking with offset central axes 6y is suitable.
  • a threaded bolt 11y projecting downward in the central axis 6y is provided, which is screwed into the central pin of the hotplate body 2y and on which a nut for fixing the cover 9y is arranged relative to the hotplate body.
  • the cover 9y lies completely within the flange edge 5y and is cup-shaped with a raised edge within the flange edge 5y against the underside of the hotplate body or the field having the heating resistors 7y.
  • connection sections 19y there is a mating connector 30 protruding parallel to them in the form of a sheet metal profile, which is possibly penetrated by the insulating piece 20y and is fastened to the underside of the cover 9y, for example by spot welding.
  • 35 and 36 show the assignment of the connecting piece 31 to the electric hotplate 1y or to the mating connector 30, the connecting piece 39y essentially corresponding to that according to FIGS. 27 to 29.
  • the plug body 56y can be arranged in such a way that it receives the mating connector 30 between its relatively low legs pointing away from the underside of the hotplate and is thereby secured against lateral displacements.
  • latching members 50y can be provided on the plug-in body 56y, which cooperate with corresponding counter-members in the counter-connector 30, which are not shown in detail.
  • the connecting members 33y are aligned very precisely with respect to the connecting sections 19y in two mutually perpendicular coordinate directions.
  • a plate-shaped centering member 60 which is formed in one piece with the mating connector 30, is provided for all the connecting sections 19y, this centering member 60 in the centering position at approximately a right angle to the connecting sections 19y Level stands and protrudes downward from the electric hotplate 1y.
  • the centering member 60 which has a prismatic or V-shaped centering opening 61 on its lower longitudinal edge for each connection section 19y, which in the region of this longitudinal edge forms a further outlet opening 62 relative to the remaining width of the centering opening 61, engages the connection Sections 19y at a short distance behind their free ends.
  • the centering member 60 is integrally connected to the front end of the mating connector 30 in the region of its side facing away from the centering openings 61 via a hinge zone 63 in the form of relatively weakly dimensioned connecting webs, the hinge axis being in the plane of the underside of the mating connector 30, so that the centering member 60 can be folded against this underside.
  • connection sections 19y emerge from the centering openings 61 through the execution openings 62.
  • the plug body 56y of the connecting piece 31y can be shortened in relation to the connecting members 33y in such a way that the latter first come into engagement with the connecting sections 19y.
  • the connecting members 33y and in particular the plug body 56y abut the centering member 60 so that it is folded against the underside of the mating connector 30 and then lies between this underside and the plug body 56y and cannot electrically bridge the connecting members 33y.
  • the plug body 56 is located on the underside of the mating connector 30. Also in the embodiment according to FIGS.
  • the hotplate 1y can, in a transport and assembly state, be designed to be essentially flat on the underside.
  • the centering member 60 is then set up, for example, from its position folded against the underside of the mating connector 30, the connecting sections 19y are pivoted out of their transport and assembly position about their joints into the connecting position and precisely aligned in the centering openings 61 .
  • the gripper used for assembly of an automatic handling machine or the like can have a corresponding counter-centering member, which has similar, prism-shaped centering openings for each connection section 19y and in the region of the centering member 60, whose centering openings 61 engage the connection sections 19y opposite, so that these cannot be printed be held in their centering position.
  • the gripper can also have both centering members on two counter-rotating centering jaws, so that the centering member 60 provided on the hotplate can be dispensed with.
  • connection members 33 etc. and the device lines 34 flat plug tongues for plug connections, as are common under the trade name AMP, can be provided on the connection members in all embodiments.
  • connection sections for example the connection sections 19, 19y or
  • Centering tool 64 is provided, which is expediently provided as a gripper for the separate gripping of the connecting sections 19 z such that they are both aligned parallel to one another and are held at a predetermined distance from one another.
  • the tool has two comb-like gripping jaws 65, 66 which can be brought into engagement with one another and which either lie immediately adjacent to one another and can thereby overlap one another, or of which a thicker gripping jaw on its comb edge has a receiving slot for immersing the other, thinner or has plate-shaped gripping jaw.
  • the gripping jaws 65, 66 have correspondingly formed and arranged the centering member 60, with their open sides facing each other gripping openings 67, which are narrowed like a funnel to their bottom surfaces, for example with convexly curved flanks, the bottom surfaces being about half the cross section of the connecting sections 19 z correspond.
  • the gripping jaws 65, 66 project in the direction in which the gripping openings 67 are provided next to one another, projecting freely from one end from a gripper holder 68, opposite which one or both gripping jaws are movably mounted towards and away from one another.
  • only one gripper jaw 65 is slidably mounted to close the tool relative to the gripper holder 68, while the other gripper jaw 66 is rigidly attached to the gripper holder 68.
  • An actuator 70 in the form of, for example, an actuating rod guided on the rod-shaped jaw guide 69 engages on the respectively movable gripping jaw 65.
  • the tool 64 moves laterally into the connecting sections 19 z in such a way that they lie between the gripping jaws 65, 66 and between two adjacent connecting sections 19 z the two opposite, essentially tapering, associated comb teeth are provided are each between two gripping openings 67 of the respective gripping jaw 65, 66 and their Form flanks.
  • the connecting portions 19 z slide on the flanks of the gripping openings 67 until they each abut the two opposite bottom surfaces of two opposite gripping openings 67 and are held essentially free of play by clamping. Since the free ends of the connecting sections 19 z protrude beyond the tool 64, these ends can be slightly resiliently adapted to their position or to the position of the connecting members when they are inserted into the connecting piece.
  • the gripping jaws 65, 66 can be moved in a straight line relative to one another
  • the gripping jaws 65 z, 66 z in the embodiment according to FIG. 40 can be pivoted like a pair of pliers.
  • the two gripping jaws 65 z, 66 z form extended gripper arms beyond the gripping openings 67 z, which at their ends distant from the gripping openings 67 z are pivotable to one another in a joint 69 z about an axis parallel to the central axes of the gripping openings 67 z, and are mounted on the gripper bracket 68 z.

Claims (25)

1. Plaque de cuisson électrique (1) comprenant un corps (2) qui délimite un pourtour extérieur dans une zone de pénétration d'une auge de cuisson, un capot (9) à une face inférieure et, au voisinage du capot (9), une pièce d'isolation (20) pour le passage de conducteurs (17) de raccordement de résistances chauffantes qui forment, à la face inférieure appropriée pour conférer un appui d'empilement, des tronçons de raccordement (19) substantiellement rectilignes, doués de rigidité propre, dégagés en vue du raccordement de conducteurs (34) de l'appareil, et ne faisant pas saillie au-delà de la face inférieure de la plaque de cuisson (1) dans une position de transport et de montage, caractérisée par le fait que les tronçons de raccordement (19) sont montés avec faculté de transfert, de la position de transport et de montage, à au moins une position de raccordement dans laquelle ils dépassent de la face inférieure et du pourtour extérieur du corps (2) de la plaque de cuisson.
2. Plaque de cuisson électrique selon la revendication 1, caractérisée par le fait que, dans le position de transport et de montage, les tronçons de raccordement (19b) des conducteurs de raccordement (17b) s'étendent, en observant par-dessus le corps (2b) de la plaque de cuisson, au maximum jusqu'au pourtour extérieur de celui-ci, respectivement aux maximum jusqu'au pourtour intérieur d'une collerette marginale externe (5b), les tronçons de raccordement (19b) étant orientés vers l'extérieur, dans la position de raccordement, en direction de la zone du pourtour extérieur qui est la plus rapprochée de la pièce d'isolation (20).
3. Plaque de cuisson électrique selon la revendication 1 ou 2, caractérisée par le fait que letronçon de raccordement considéré (19a) peut être transféré, de la position de transport et de montage à la position de raccordement, par l'intermédiaire d'au moins une articulation (22a) qui est réalisée d'un seul tenant avec ce tronçon, et occupe une position encaissée dans la face inférieure, l'axe d'au moins une articulation étant alors, de préférence, approximativement perpendiculaire à la face inférieure de la plaque de cuisson (1b).
4. Plaque de cuisson électrique selon la revendication 3, caractérisée par le fait que l'axe d'au moins une articulation formée par un coude du tronçon de raccordement (19a), muni d'une section réduite, est approximativement parallèle à la face inférieure de la plaque de cuisson, et approximativement perpendiculaire au plan axial associé de ladite plaque de cuisson (1a).
5. Plaque de cuisson électrique selon l'une des revendications précédentes, caractérisée par le fait que le tronçon de raccordement considéré (19b) est appliqué sur la face inférieure de la plaque de cuisson par l'intermédiaire d'un ressort (71), en direction de la position de raccordement, contre une butée (72) qui le retient dans la position de transport et de montage, est préférentiellement prévue sur le capot (9b), et est formée par la face interne d'un rebord annulaire (10b) du capot (9b).
6. Plaque de cuisson électrique selon la revendication 5, caractérisée par le fait que le ressort (71) forme l'articulation, et l'articulation est notamment formée par une partie du tronçon de raccordement (19b) qui est cintrée en forme de spire hélicoïdale.
7. Plaque de cuisson électrique selon l'une des revendications précédentes, caractérisée par le fait que le tronçon de raccordement (19k) présente, au voisinage de la pièce d'isolation, une zone du type articulation destinée à la flexion et formée par deux diminutions de section (52), situées de part et d'autre d'un coude, de telle sorte que les tronçons de raccordement puissent être transférés au moins à une position perpendiculaire à la plaque de cuisson.
8. Plaque de cuisson électrique selon l'une des revendications précédentes, caractérisée par le fait qu'un logement encaissé (27) est prévu, pour une partie du tronçon de raccordement (19) intercalée entre la pièce d'isolation (20) et le pourtour extérieur du corps (2) de la plaque de cuisson, dans la face inférieure d'au moins l'une des pièces constitutives matérialisées par une collerette marginale externe (5), par le capot (9) et par la pièce d'isolation (20) s'étendant approximativement jusqu'à la face inférieure dudit capot (9).
9. Plaque de cuisson électrique selon l'une des revendications précédentes, caractérisée par une pièce de raccordement (31) qui est commune à tous les tronçons de raccordement (19b) prévus sur la pièce d'isolation (20), et qui présente des organes de raccordement-distincts (33) agencés en juxtaposition sur un corps isolant (32) et auxquels sont associés, en particulier au voisinage de leurs extrémités situées à l'avant dans une direction de raccordement (flèche 48), des moyens d'enfilement et de guidage destinés aux tronçons de raccordement (19b), au moins l'une des deux pièces constitutives, matérialisées par les organes de raccordement (33i) et par le corps isolant (32i), formant des douilles d'enfichage pour les tronçons de raccordement (19i) et présentant, au voisinage de l'extrémité d'au moins une douille d'enfichage qui est antérieure dans la direction de raccordement, une configuration de section qui forme le moyen d'enfilement et de guidage.
10. Plaque de cuisson électrique selon la revendication 9, caractérisée par le fait que, en vue de former les moyens d'enfilement et de guidage, l'extrémité antérieure d'au moins un orifice (36r) d'une douille d'enfichage présente un évasement infundibuliforme et est formée par l'organe de raccordement (33r) respectivement tubulaire ou configuré en un fourreau fendu longitudinalement; ou au moins un orifice (36t) d'une douille d'enfichage revêt la forme d'un trou oblong perpendiculairement au plan commun des tronçons de raccordement; ou bien il est prévu, devant au moins un orifice (36i) d'une douille d'enfichage, au moins une surface de guidage et d'orientation (40, 41, 42) pour l'extrémité de raccordement du tronçon de raccordement (19i), qui est sensiblement parallèle à la direction de l'enfichage (48) et est plus large que la largeur de l'orifice (36i) de la douille d'enfichage, surfaces parmi lesquelles, de préférence, une surface d'orientation (40) est prévue à peu près parallèlement au plan commun des tronçons de raccordement (19i), à l'opposé de la face inférieure de la plaque de cuisson, et une surface d'orientation (41) occupe une position transfersale par rapport au plan commun des tronçons de raccordement (19i), de façon que deux surfaces d'orientation (40, 41) décrivant mutuellement un angle se rattachent l'une à l'autre.
11. Plaque de cuisson électrique selon la revendication 9 ou 10, caractérisée par le fait qu'au moins une surface d'orientation (40, 41, 42) est formée par l'organe de raccordement (33i) notamment réalisé, à l'extrémité antérieure, en forme de barrette aplatie, en forme de cornière ou muni d'une languette plate enfichable, ou au moins une surface d'orientation (40n) est formée par le corps isolant (32n), en particulier par une surface en décrochement s'étendant, d'un trait, au-dessus de tous les organes de raccordement (33n).
12. Plaque de cuisson électrique selon l'une des revendications 9 à 11, caractérisée par le fait que le corps isolant (32, 32i, 32m) de la pièce de raccordement forme au moins un organe d'alignement,tel qu'un organe encliquetable (50), une butée (50m) de profondeur d'enfichage, un profil d'enfichage (56y), qui vient en prise avec la plaque de cuisson (1b, 1y) directement au voisinage de la face inférieure, et est de préférence formé par des protubérances saillantes destinées à pénétrer dans des renfoncements (51) ménagés à la face inférieure du capot (9i) et prévus de part et d'autre des tronçons de raccordement (19i), respectivement par une butée (50m) en vue du contact avec le pourtour extérieur de la collerette marginale externe du corps de la plaque de cuisson, le corps isolant (32m) prenant appui, dans la position de butée, contre la face inférieure de la collerette marginale.
13. Plaque de cuisson électrique selon l'une des revendications 9 à 12, caractérisée par le fait que la pièce de raccordement présente un corps d'en- fichage (56y) qui est sensiblement parallèle aux tronçons de raccordement (19y) et est associé à une fiche complémentaire (30) de la plaque de cuisson (1y), le corps d'enfichage (56y) étant notamment formé par un profil en tôle portant le corps isolant (32y), la fiche complémentaire (30) étant respectivement formée par une languette d'enfichage fixée au capot (9y) et située au-dessus des tronçons de raccordement (19y).
14. Plaque de cuisson électrique selon l'une des revendications 9 à 13, caractérisée par un organe de centrage (60) du tronçon de raccordement (19y), qui vient en prise à proximité de l'extrémité de raccordement et est disposé, sur la plaque de cuisson (1y), avec faculté de mouvement d'une position de centrage à une position de connexion décaleée de la trajectoire d'enfichage de la pièce de raccordement (31y), l'organe de centrage (60) pouvant être de préférence entraîné par la pièce de raccordement (31y) à l'écart de la position de centrage, sensiblement dans la direction de l'enfi- chage, ou bien étant respectivement disposé sur le capot (9y), avec montage pivotant autour d'un axe sensiblement parallèle au plan commun des tronçons de raccordement (19y), et étant relié à une fiche complémentaire (30) de la plaque de cuisson par l'intermédiaire de zones d'articulation (63) destinées à la flexion.
15. Plaque de cuisson électrique selon la revendication 14, caractérisée par le fait que l'organe de centrage (60) comporte, pour les tronçons de raccordement (19y), des orifices de centrage (61) à bords ouverts au voisinage d'orifices de sortie (62) destinés aux tronçons de raccordement (19y), les orifices de sortie (62) étant notamment prévus sur l'arête, tournée à l'opposé de la zone d'articulation (63), de l'organe de centrage (60) en forme de plaque.
16. Plaque de cuisson électrique selon l'une des revendications 9 à 15, caractérisée par le fait que la pièce de raccordement (31 i) présente au moins un organe de positionnement (45) pour l'alignement, dans une position correcte, sur l'élément de préhension d'un dispositif de manipulation automatique, des creusures de positionnement étant de préférence prévues des deux côtés du corps isolant (32i).
17. Plaque de cuisson électrique selon l'une des revendications 9 à 16, caractérisée par le fait que les organes de raccordement (33i) consistent en de l'acier, et sont notamment formés par des cosses extrêmes de conducteurs en vue de la jonction avec les conducteurs (34i) de l'appareil.
18. Plaque de cuisson électrique selon l'une des revendications 9 à 17, caractérisée par le fait qu'au moins l'un des organes de raccordement (33m) est verrouilleé en position par écrasement par rapport au corps isolant (32m) qui présente, au voisinage de chaque organe de raccordement (33m), au moins un orifice de pénétration (53m) s'étendant transversalement par rapport audit organe, et destiné à un outil d'écrasement; par le fait que, de préférence, au moins l'un des organes de raccordement (33i) est réalisé en vue du soudage sans contact avec le tronçon de raccordement (19i), un orifice d'accès (49) étant prévu, dans le corps isolant (32i), au voisinage de la zone de soudage considérée; et par le fait que, en particulier, au moins l'un des organes de raccordement (33m) est réalisé en vue de là solidarisation par écrasement avec le tronçon de raccordement, respectivement avec le conducteur (34m) de l'appareil.
19. Plaque de cuisson électrique selon l'une des revendications 9 à 18, caractérisée par le fait qu'au moins l'un des organes de raccordement (33v) est réalisé en vue de la solidarisation emboîtée, notamment libérable, respectivement avec le tronçon de raccordement ou avec un broche (58) du conducteur (34v) de l'appareil; par le fait qu'au moins l'un des organes de raccordement (33t) présente, respectivement pour le tronçon de raccordement ou pour le conducteur (34t) de l'appareil, au moins une vis (57, 55t) de serrage de raccordement dont le filetage, en présence d'une section ovale de la douille de l'organe de raccordement (33t), pénètre dans les flancs de la section de ce dernier; par le fait qu'au moins un organe de raccordement (33i), faisant notamment saillie au-delà du corps isolant (32i) dans la direction de l'enfichage (flèche 48), s'étend approximativement jusqu'au coude (22i) du tronçon de raccordement (19i); ou par le fait que le corps isolant (32i) est de configuration longiligne dans le sens longitudinal des organes de raccordement (33i) s'étendant, à chaque fois, d'un seul tenant de manière ininterrompue, et est appliqué contre la face inférieure d'une collerette marginale du corps de la plaque de cuisson.
20. Plaque de cuisson électrique selon l'une des revendications 9 à 19, caractérisée par le fait que le corps isolant (32) se rattache au moins approximativement à la surface latérale externe, respectivement à la face inférieure de la pièce d'isolation (20b), et reçoit notamment les articulations associées (71) des tronçons de raccordement (19b); et par le fait que le corps isolant (32) et la pièce d'isolation (20b) consistent en un matériau céramique.
21. Plaque de cuisson électrique selon l'une des revendications précédentes, caractérisée par le fait que la pièce d'isolation (20) est consignée fermement à demeure entre le capot (9) et une face inférieure opposée du corps (2) de la plaque de cuisson, logeant des résistances chauffantes (7), et s'engage avec effet de centrage dans une ouverture (23) du type fenêtre, pratiquée dans le capot (9), la pièce d'isolation (20) étant de préférence en retrait par rapport à la face inférieure du capot (9) et empêchant, dans d'étroits orifices de passage (21), des mouvements des zones internes (18) des conducteurs de raccordement (17), raccordées aux résistances chauffantes (7).
22. Plaque de cuisson électrique selon l'une des revendications précédentes, caractérisée par le fait que la face inférieure de la plaque de cuisson (1), notamment du capot (9), est réalisée sous la forme d'une surface d'empilement située pour l'essentiel dans un plan, et substantiellement exempte de parties saillantes.
23. Plaque de cuisson électrique selon l'une des revendications précédentes, caractérisée par le fait que le capot (9) est fixé au corps (2) de la plaque de cuisson par au moins un organe de fixation, tel qu'un boulon (11), en retrait par rapport à sa face inférieure et prévu à l'extérieur d'un axe médian (6) de la plaque de cuisson (1), au voisinage d'une collerette marginale interne (70) du corps (2) de la plaque de cuisson; et par le fait que, lorsqu'elle est réalisée en tant que plaque de cuisson automatique, la plaque de cuisson présente de préférence, à la face inférieure, deux organes de fixation installés à distance l'un de l'autre, en particulier des vis creuses appropriée pour la fixation du capot et pour la fixation de la plaque de cuisson dans une auge de cuisson.
24. Dispositif d'installation d'une pièce de raccordement électrique (31i) sur des tronçons de raccordement (19i) d'une plaque de cuisson électrique selon l'une des revendications précédentes, caractérisé par la présence d'un élément de préhension qui imprime des mouvements à la pièce de raccordement (31i) dans trois directions de coordonnées (flèches 46, 47, 48), par rapport aux tronçons de raccordement (19i), pour mettre ces derniers successivement en prise avec des surfaces d'orientation (40, 41, 42); ou par le fait qu'un mécanisme de préhension et d'alignement des tronçons de raccordement (19) est prévu en tant qu'outil distinct.
25. Dispositif selon la revendication 24, caractérisé par le fait que le mécanisme de préhension et d'alignement comporte deux mâchoires de préhension dont au moins l'une présente une surface de préhension du type peigne, munie de découpes de centrage pour les tronçons de raccordement (19).
EP86115497A 1985-11-16 1986-11-08 Plaque de cuisson électrique et dispositif pour sa connexion Expired - Lifetime EP0223168B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT86115497T ATE54529T1 (de) 1985-11-16 1986-11-08 Elektrokochplatte sowie vorrichtung fuer deren anschluss.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19853540815 DE3540815A1 (de) 1985-11-16 1985-11-16 Elektrokochplatte sowie vorrichtung fuer deren anschluss
DE3540815 1985-11-16

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EP0223168A1 EP0223168A1 (fr) 1987-05-27
EP0223168B1 true EP0223168B1 (fr) 1990-07-11

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EP86115497A Expired - Lifetime EP0223168B1 (fr) 1985-11-16 1986-11-08 Plaque de cuisson électrique et dispositif pour sa connexion

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US (1) US4871902A (fr)
EP (1) EP0223168B1 (fr)
AT (1) ATE54529T1 (fr)
DE (2) DE3540815A1 (fr)
ES (1) ES2016242B3 (fr)
YU (1) YU194486A (fr)

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DE3728528A1 (de) * 1987-08-27 1989-03-09 Ego Elektro Blanc & Fischer Elektrokochplatten-anschlussstueck
DE3803806A1 (de) * 1988-02-09 1989-08-17 Ego Elektro Blanc & Fischer Elektrokochplatte
US4993553A (en) * 1988-02-09 1991-02-19 E.G.O. Elektro Gerate Blanc U. Fischer Electric hotplate stacking aid
DE8805230U1 (fr) * 1988-04-20 1989-08-24 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen, De
DE3916725A1 (de) * 1989-05-23 1990-12-06 Ego Elektro Blanc & Fischer Elektrokochplatte
DE4008830A1 (de) * 1990-03-20 1991-09-26 Ego Elektro Blanc & Fischer Elektrokochplatte
DE19821140B4 (de) † 1998-05-12 2009-08-27 E.G.O. Elektro-Gerätebau GmbH Elektrokochplatte
FR2859867B1 (fr) * 2003-09-16 2006-04-14 Frima Sa Element chauffant pour appareil de cuisson
WO2006082753A1 (fr) * 2005-02-04 2006-08-10 Matsushita Electric Industrial Co., Ltd. Dispositif de chauffage par induction
US10696168B2 (en) * 2012-06-14 2020-06-30 Dr. Ing. H.C.F. Porsche Aktiengesellschaft Charging connection apparatus for a motor vehicle
DE102012105139A1 (de) * 2012-06-14 2013-12-19 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Ladeanschlussvorrichtung für ein Kraftfahrzeug
US11665790B2 (en) * 2016-12-22 2023-05-30 Whirlpool Corporation Induction burner element having a plurality of single piece frames
WO2020170800A1 (fr) * 2019-02-19 2020-08-27 日本碍子株式会社 Chauffage en céramique et son procédé de fabrication

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Also Published As

Publication number Publication date
ES2016242B3 (es) 1990-11-01
DE3672568D1 (de) 1990-08-16
DE3540815A1 (de) 1987-05-27
US4871902A (en) 1989-10-03
YU194486A (en) 1988-04-30
ATE54529T1 (de) 1990-07-15
EP0223168A1 (fr) 1987-05-27

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