EP0447859A2 - Plaque de cuisson électrique - Google Patents

Plaque de cuisson électrique Download PDF

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Publication number
EP0447859A2
EP0447859A2 EP91103086A EP91103086A EP0447859A2 EP 0447859 A2 EP0447859 A2 EP 0447859A2 EP 91103086 A EP91103086 A EP 91103086A EP 91103086 A EP91103086 A EP 91103086A EP 0447859 A2 EP0447859 A2 EP 0447859A2
Authority
EP
European Patent Office
Prior art keywords
hotplate
insulating body
connecting part
cooking plate
lines
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.)
Withdrawn
Application number
EP91103086A
Other languages
German (de)
English (en)
Other versions
EP0447859A3 (en
Inventor
Felix Schreder
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
Publication of EP0447859A2 publication Critical patent/EP0447859A2/fr
Publication of EP0447859A3 publication Critical patent/EP0447859A3/de
Withdrawn legal-status Critical Current

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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
    • F24C15/102—Tops, e.g. hot plates; Rings electrically heated
    • F24C15/104—Arrangements of connectors, grounding, supply wires

Definitions

  • the invention relates to an electric hotplate according to the preamble of claim 1.
  • an electric hotplate has become known, on the lower cover of which a connecting part in the form of a holding plate is arranged, which projects substantially horizontally and radially to the hotplate beyond its edge and at the end of which an insulating body is firmly attached. It contains screw terminals for connecting cables that lead through the cover into the electric hotplate.
  • This type of construction has proven itself millions of times, but it creates problems in the transport and handling of the hotplate from the manufacturer to the installation company and requires differentiated storage because each type of connection system must be assigned a hotplate type.
  • the object of the invention is to further develop the state of the art in the sense of an improvement and to further increase the electrical sense and mechanical safety, in particular while maintaining the advantages of the smaller stack volume.
  • the connecting part for example a sheet which is firmly attached to the hotplate cover with one side thereof, can be connected to the insulating body by a quick connection, it is not necessary to mount the insulating body firmly already during hotplate production.
  • the connecting part together with the connecting lines can be bent down into the hotplate level and the insulating body can later be snapped onto the connecting part, the connecting lines preferably projecting into and through openings in the insulating body, or being provided there with plug-in or screw connections .
  • the connecting part can be attached to the hotplate in such a way that it can be pivoted in one direction, for example by a predetermined bending point in the sheet.
  • the pivoting is restricted to a downward pivoting about an axis closer to the center of the hotplate, while the sheet metal prevents pivoting in the lateral direction.
  • a swivel limitation can be provided, which takes effect at the desired angle and stiffens the sheet in this position.
  • They can be designed in cooperation with stiffening beads, for example by a sheet metal tab pulled obliquely out of the plane of the connecting part, which is stiffened by beads and comes to rest when it bends down on the connecting part or the hotplate cover, so that in this position the pivoting or bending is blocked around the predetermined bending point.
  • FIG. 1 shows an electric hotplate 11 with a hotplate body 12 made of cast material, which has an upper, essentially flat cooking surface 13 and an electric heater 14 arranged underneath and embedded in a ceramic mass.
  • the circular hotplate has on its outer circumference a projecting flange 15 and a downward, substantially cylindrical edge 16 on its outer circumference, and, supported on the underside of the flange 15, a support ring 17 is pressed on, which serves as an installation ring.
  • a hotplate cover 18 is supported, which consists of a sheet metal which is fastened to the hotplate body, for example by being fixed by a bolt screwed into a central pin of the hotplate. It is it can be fixed by means of other fastenings, such as, for example, with snap connections or barb-like claws, and by means of screws on an edge of an unheated central zone.
  • a passage part 21 is inserted into an opening 19 in a section 20 of the cover 18 which is slightly recessed towards the hotplate body and which is supported on the outside by a shoulder 22 and has holes 23 through which connecting lines 24 protrude.
  • the lead-through part 21 can be inserted into the opening 19 from the outside, for which purpose it has guide bevels and leads with a cylindrical part adjoining the shoulder 22 in the opening. It can be fixed there by clamping action and / or by turning over a suitably designed flap 25 (see FIG. 3). From the holes 23 lead to the hotplate radially extending grooves 26 to the outside (and possibly also to the inside), which form a certain guide for the connecting lines 24 when these are then bent over the holes.
  • connecting lines are welded to connecting pins 28 protruding from the insulating compound 27, which covers the heating 14. There they run horizontally to the holes, pass through them vertically or at an angle and are then bent approximately horizontally and in a radial direction.
  • Fig. 1 the hotplate is shown in the state after its manufacture and during transport.
  • the connecting lines 24 are in the section 29 adjoining the feed-through part and in their outwardly pointing end section 30, which is under a certain Angular deviation adjoins this, placed so that they run essentially parallel to the underside of the hotplate and hardly increase the stack height. They can even be bent upwards at an angle.
  • a side plate 33 also referred to as a connecting means, is fastened between the lead-through part 21 and the edge 32 of the cover 18 resting on the underside 31 of the edge 16 of the hotplate body 12.
  • the inner T-beam 34 is bent at its ends, inserted through slots 35 in the cover 18 and attached to it by bending.
  • the middle leg adjoining the T-beam 34 first has a wider section 37 and ends in a narrower section 36. Near its end, a barb 38 acting like a barb is bent out of the resilient sheet metal material.
  • a middle wart 39 is embossed. Section 36 is so narrow that the connecting lines with flat tabs 44 welded to them run past to the side.
  • FIGS 2 and 3 show the installed state.
  • the hotplate 11 is installed in an opening 41 in a mounting plate 40, which can be the upper plate of a hob or a hotplate. It consists of enamelled or stainless steel sheet and has a stepped, upward-facing shape 42, on the step of which the support ring 17 is supported under the action of a center bolt, not shown, which engages a tensioning bracket 43.
  • An insulating body 47 can be connected to the side plate 33 by means of a quick connection 46, which forms through openings 48 for the connecting lines 24 and the tabs 44 attached to them and which guides and holds them in the correct position and distance.
  • the flat tabs 44 have lateral projections 49, which have a dimension that is only marginally smaller than the inside dimension of the through openings 48, and are slightly chamfered on the inside, so that they try themselves with corresponding chamfers 50 on the insulating body in the event that tries should be to pull them back through the through openings, move them laterally, which is possible due to the smaller dimensions of the part of the flat tabs projecting into the through openings 48. So you are, especially considering the relatively stiff connecting cables, secured in the insulating part, but have a certain axial freedom in it.
  • the insulating body is a largely rectangular body, which has a narrow through slot 51 on its upper side in an area 52 that is somewhat shortened in length.
  • the strip-like section 36 can be pushed through this slot and then engages with the tongue 38, which is supported on the end face 53 of the section 52.
  • the wart 39 is supported on the underside in the through-slot 51, so that the sheet metal section remaining between it and the tongue 38 has the necessary spring action to enable the tongue to pass through the through-slot and to then snap it into place.
  • a groove 54 is provided on the side of the insulating body facing the hotplate, which cuts through the side walls of the through slot over a certain depth.
  • Supporting parts 55 in the form of sheet-metal tabs engage in this groove 54 and are formed on the shoulder between the sections 36 and 37 or are formed by this shoulder. The dimensions are such that the support parts 55 rest against the bottom of the groove when the tongue 38 is engaged. It can be seen that this quick connection is achieved by simply plugging it on, it fixes itself automatically and causes the insulating part to be guided securely in all lateral and rotational directions. To attach the insulating body 47 leading the connecting lines, it is therefore only necessary to bend the connecting lines 24 somewhat downward from their transport position and to push the insulating body 47 axially above it and at the same time onto the side plate until it engages.
  • the quick connection can also be formed by other, preferably resilient latching elements, for example a fork-shaped design of the side plate with front barb-like latching elements, the fork being guided in lateral grooves of an insulating body and engaging from the side.
  • the present quick connection is particularly easy and secure to install.
  • FIGS. 2 and 3 show an electric hotplate installed in a sheet metal mounting plate 40.
  • the mounting plate 40a consists of a glass plate in the opening 41 of which the electric hotplate 11 by means of an intermediate ring 60, an elastic sealing and support ring 61 and a shielding and centering ring 62 is installed.
  • the glass plate 40a lies on a sheet metal washer 63 on which the clamping plate 43 is supported, which has a cutout 64 for the hotplate connection.
  • the side plate 33 also allows the connection to be made here, although the hotplate is installed higher due to the parts 60 to 61 required for heat insulation and sealing reasons and these parts also have a greater overall depth .
  • the side plate can namely be pivoted downward about a horizontal axis by means of a predetermined bending point 65 (see also FIG. 3), the horizontal axis being as close as possible to the fastening of the side plate to the lower hotplate cover, i. H. at the transition between the T-beam 34 and the middle leg 36, 37.
  • the predetermined bending point is formed by a central slot-like cutout 66 in the sheet metal, which leaves only two edge webs that allow bending without thereby impairing the lateral rigidity.
  • the connecting lines 24 are bent downwards before or after the insulating body 47 is snapped on. This is easily possible due to the axial mobility of the connecting lines in the passage openings 48. Due to the parallelogram arrangement of the side plate and the connecting line, they move axially when pivoted.
  • the hotplate can be swiveled sideways into the opening. In principle, however, it would also be possible to bend the entire connection down so far that the hotplate is vertical from above can be used and then bend the entire connection unit back again. It is nevertheless ensured that no live parts come into contact with other hotplate parts.
  • Fig. 6 shows an embodiment with a sheet metal mounting plate 40, in which the rest of the same design of all parts of the insulating body 47 has a forward-facing sleeve-shaped part 68 and comprising the tabs. 2 to 5, the tab stick protruded freely from the insulating body 47, while here the part 68 includes tab 44 and plug 45.
  • the side plate 33 has pivot limiting means 70 in the region of the predetermined bending point, which are formed by downwardly directed features 71 being provided in the side plate 33 on both sides of the webs to be formed the predetermined bending point, which are in the region delimit a groove 72 from the predetermined bending point (see also FIG. 8).
  • the side walls of this groove 72 formed by the stampings 71 move downwards towards one another when the side plate is bent, and finally bear against one another, as a result of which they limit the pivoting to a maximum angle. This prevents unintentional swiveling into a position in which the connecting lines 24, for. B. could come into contact with the clamping plate 43 avoided.
  • FIG. 7 and 8 show an embodiment in which, in the rest of the same design as in FIG. 6, the insulating body 47 is provided with a central partition-like projection 68a instead of the part 68 surrounding the connector 44, 45.
  • FIG. 6 mutual isolation of the two hotplate connections from one another is brought about, above all also against unintentional ones Bending together of the two plugs 45. While insulation from the outside is also carried out in FIG. 6, FIG. 7 is provided for cases in which this is not necessary.
  • Fig. 9 shows the rest of the same design of hotplate 11 with side plate 33 and mounting plate 40 a modified connection.
  • the connecting lines 24 are only provided with a flattening at their end and the insulating body 47 contains the same design of the plug connection 46 in the area of its passage openings 48 screw connection terminals 73, which consist of a metal sleeve and a screwed screw 74, which protrude through a breakthrough 75.
  • An insulating rib 76 is provided between the screw heads. The screw also secures the terminal 73 in the insulating body at the same time.
  • the passage opening 48 is narrowed on the side facing away from the hotplate, and an end sleeve 45a of a feed line 78 can be pushed through the insertion opening 77 formed therewith.
  • connection ends 45a can, as indicated by dash-dotted lines, be guided in a connection block 79 in order to facilitate threading and, in the assembled state, form a largely closed connection unit.
  • FIG. 10 shows the hotplate and connection parts according to FIG. 9, installed in a tempered glass trough with the installation parts according to FIG. 5. It can be seen that the entire connection unit can also be pivoted far down here. Since the screw connection only takes place after installation, the necessary length compensation is in the connection area completely unproblematic, since the screw terminal acts on the corresponding point of the connecting line 24. This also creates a certain degree of security for the respective inclined position.
  • the insulating body 47 with its upper surface can be supported on built-in parts from below. This keeps the connector in position and prevents short circuits.
  • FIG. 11 and 12 show an embodiment of the pivot limiting means 70 for a side plate 33.
  • the weakening of the material forming the predetermined bending point 65 is formed here by a U-shaped cutout 66a, the central tab 79 of which together with the part of the connecting portion Side plate 33 is reinforced by a bead.
  • the tab 79 is bent downwards. When pivoted, the stiffened tab 79 lies against the cover 18 in the intended limiting position and thus limits the pivoting movement.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Baking, Grill, Roasting (AREA)
  • Resistance Heating (AREA)
EP19910103086 1990-03-20 1991-03-01 Electric cooking plate Withdrawn EP0447859A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE4008830 1990-03-20
DE4008830A DE4008830A1 (de) 1990-03-20 1990-03-20 Elektrokochplatte

Publications (2)

Publication Number Publication Date
EP0447859A2 true EP0447859A2 (fr) 1991-09-25
EP0447859A3 EP0447859A3 (en) 1992-03-25

Family

ID=6402579

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19910103086 Withdrawn EP0447859A3 (en) 1990-03-20 1991-03-01 Electric cooking plate

Country Status (4)

Country Link
US (1) US5086211A (fr)
EP (1) EP0447859A3 (fr)
JP (1) JPH04227217A (fr)
DE (1) DE4008830A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106152519A (zh) * 2016-06-29 2016-11-23 广东美的环境电器制造有限公司 暖风机的电源线出线结构及暖风机

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19646985A1 (de) * 1996-11-14 1998-06-04 Michael Dr Weichsel Geschmacksverbesserung bei Zahnregulierungsapparaten
ES2130978B1 (es) * 1997-02-19 2000-02-16 Balay Sa Envolvente para ubicacion y conector de los terminales del sistema electrico y/o electronico de placas de coccion.
DE19821140B4 (de) * 1998-05-12 2009-08-27 E.G.O. Elektro-Gerätebau GmbH Elektrokochplatte
DE102007017456A1 (de) 2007-04-04 2008-10-09 E.G.O. Elektro-Gerätebau GmbH Anschlussvorrichtung für eine Elektrokochplatte und Elektrokochplatte

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246123A (en) * 1964-12-17 1966-04-12 Wiegand Co Edwin L Range top heater assembly
EP0113923A2 (fr) * 1983-01-15 1984-07-25 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque de cuisson électrique

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2261496A (en) * 1938-11-23 1941-11-04 Arthur H Happe Electric heating unit
DE1021967B (de) * 1955-04-06 1958-01-02 Karl Fischer Elektrische Massekochplatte
DE2442717A1 (de) * 1974-09-06 1976-03-18 Karl Fischer Elektrische heizplatte fuer elektroherde
DE2651848C3 (de) * 1976-11-13 1981-07-16 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Anschlußstück für den elektrischen Anschluß von Elektrokochplatten
DE3027998A1 (de) * 1980-07-24 1982-02-25 Fischer, Karl, 7519 Oberderdingen Elektrische kochplatte mit einem ueberhitzungsschutzschalter
DE3425896A1 (de) * 1984-07-13 1986-01-23 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektrokochplatte
DE3519035A1 (de) * 1985-05-25 1986-11-27 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektro-kochplatte
DE3540815A1 (de) * 1985-11-16 1987-05-27 Ego Elektro Blanc & Fischer Elektrokochplatte sowie vorrichtung fuer deren anschluss
GB2194720B (en) * 1986-08-26 1989-12-20 Ego Elektro Blanc & Fischer Sealed electric hotplate
DE3728535A1 (de) * 1987-08-27 1989-03-09 Ego Elektro Blanc & Fischer Herdplatte
DE8712088U1 (de) * 1987-09-05 1987-10-22 E.G.O. Elektro-Geräte Blanc u. Fischer, 7519 Oberderdingen Elektro-Kochplatte
DE3803806A1 (de) * 1988-02-09 1989-08-17 Ego Elektro Blanc & Fischer Elektrokochplatte

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3246123A (en) * 1964-12-17 1966-04-12 Wiegand Co Edwin L Range top heater assembly
EP0113923A2 (fr) * 1983-01-15 1984-07-25 E.G.O. Elektro-Geräte Blanc u. Fischer Plaque de cuisson électrique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106152519A (zh) * 2016-06-29 2016-11-23 广东美的环境电器制造有限公司 暖风机的电源线出线结构及暖风机
CN106152519B (zh) * 2016-06-29 2019-05-31 广东美的环境电器制造有限公司 暖风机的电源线出线结构及暖风机

Also Published As

Publication number Publication date
JPH04227217A (ja) 1992-08-17
DE4008830A1 (de) 1991-09-26
US5086211A (en) 1992-02-04
EP0447859A3 (en) 1992-03-25

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