EP0860846B1 - Elektriches Steuergerät, insbesondere für Elektrowärmegeräte - Google Patents

Elektriches Steuergerät, insbesondere für Elektrowärmegeräte Download PDF

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Publication number
EP0860846B1
EP0860846B1 EP19980100267 EP98100267A EP0860846B1 EP 0860846 B1 EP0860846 B1 EP 0860846B1 EP 19980100267 EP19980100267 EP 19980100267 EP 98100267 A EP98100267 A EP 98100267A EP 0860846 B1 EP0860846 B1 EP 0860846B1
Authority
EP
European Patent Office
Prior art keywords
housing
switch
control device
cam
plug
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
EP19980100267
Other languages
German (de)
English (en)
French (fr)
Other versions
EP0860846A2 (de
EP0860846A3 (de
Inventor
Günther Reimold
Reiner Dieffenbacher
Siegfried Mannuss
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 Geratebau 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 Geratebau GmbH filed Critical EGO Elektro Geratebau GmbH
Publication of EP0860846A2 publication Critical patent/EP0860846A2/de
Publication of EP0860846A3 publication Critical patent/EP0860846A3/de
Application granted granted Critical
Publication of EP0860846B1 publication Critical patent/EP0860846B1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5866—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H19/00—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand
    • H01H19/54—Switches operated by an operating part which is rotatable about a longitudinal axis thereof and which is acted upon directly by a solid body external to the switch, e.g. by a hand the operating part having at least five or an unspecified number of operative positions
    • H01H19/60—Angularly-movable actuating part carrying no contacts
    • H01H19/62—Contacts actuated by radial cams
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/64—Means for preventing incorrect coupling
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R9/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, e.g. terminal strips or terminal blocks; Terminals or binding posts mounted upon a base or in a case; Bases therefor
    • H01R9/22—Bases, e.g. strip, block, panel
    • H01R9/24—Terminal blocks
    • H01R9/2491—Terminal blocks structurally associated with plugs or sockets
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/58—Electric connections to or between contacts; Terminals
    • H01H1/5866—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector
    • H01H2001/5872—Electric connections to or between contacts; Terminals characterised by the use of a plug and socket connector including means for preventing incorrect coupling

Definitions

  • the invention relates to an electrical control device having the features of the preamble of claim 1 or 12.
  • Electrical control devices which include switches, power control devices or similar devices which affect the functions of the connected devices, are intended in particular for the electric heating range, but also for other devices, such as household appliances, usually with rotary actuation and accordingly have a control shaft.
  • electric cooking appliances there are often several independently operable units, e.g. four or five hotplates per cooktop.
  • individual control devices e.g. Cam switches or clocking power control devices are provided, which must be individually mounted and wired.
  • an electrical control unit in the form of a four-way switch block which consists of a sheet metal frame, can be snapped into the individual insulating, carry the functional parts such as contact springs and mating contacts. On the back of Isolierplatten plug contacts are provided.
  • DE 36 35 324 C shows a power control device with a box-shaped, closed by a lid housing and freestanding flat tabs on the back. It also shows how these individual devices are mounted on a frame plate. A board common to all devices runs along a side parallel to the switching waves and is connected to the devices by wire connections. On the circuit board plug connections for low-current circuits (signal lines) are provided, while in another level at the individual switches, the connector terminals for the power supply are arranged freely protruding.
  • EP 622 819 A1 shows a switching device with a base plate and an upper housing part into which a connector plug is inserted.
  • the receptacle for the connector on a coding by projections and recesses, in which it fits exactly.
  • a single receptacle for a single connector is provided at the switching device.
  • the CH 387 742 A shows a switch for electric heaters. On one side of a switch housing various terminals are provided, by means of which a contact with the switch with appropriate cables is possible. Plug or the like are not provided here.
  • FR 2 349 697 A shows a switching device., In which the electrical connection via plug connection lugs or clamping springs takes place.
  • the plug-in lugs or clamping springs are arranged in individual chambers and are electrically contacted by individual cables, namely either sockets or contact sleeves.
  • DE 15 90 137 A shows a rotary switch with a housing. From this housing plug-in lugs stand for an electrical contact.
  • the object of the invention is to provide an electrical control device that allows an improved and simplified and above all easy to install and reliable way of connecting the inlets and outlets. This object is achieved by claim 1 and claim 12.
  • control units such as cam switches, power control devices (generally referred to as energy regulator) o.
  • energy regulator power control devices
  • o power control devices
  • the like are arranged in a unitary and preferably one-piece housing. This then usually does not need a lid, because the terminal side is completely closed electrically and the functional side with switch contacts o. The like.
  • at least one control unit contained in the housing may include a cam switch with bending switching springs, which are punched from a circuit board.
  • This design also makes it possible prefabricate the individual boards in the form of a coherent band and to equip with welded contacts. They can thus be rolled up as an endless belt fed to an assembly machine and are deflected immediately prior to assembly only in the required number of individual switching springs.
  • the mating contacts make it possible to place the switch contacts centrally in the plane of the tab by a turn in the form of a "7", so that they are always loaded centrally.
  • the cam switch can work with a sliding contact bridge.
  • This contains two switch contacts, which work together with fixed mating contacts and bridges them when they are pressed against it by a spring.
  • the contact bridge can be relatively solid, even if made of flat material, and thus performs the good heat generated by an opening spark. It makes it possible in particular to comply with the small distances between the individual contact paths, which are predetermined by the 5 mm grid. On both sides of the contact bridge then there is still sufficient space to provide vertically through the switch leading ventilation channels containing openings in the bottom of the switch housing.
  • Figures 1 to 5 show an electrical control unit 11 in the form of a double cam switch with a housing consisting of a thermosetting or thermosetting plastic part housing 12 and two control units 61, which have two mutually parallel, parallel control shafts 13 with switching cam 14.
  • the switch housing for the double cam switch which can be seen in particular from FIG. 3, is made of plastic injection molding essentially without undercuts, so that it can be produced in a two-part mold with only a few mold slides (eg for the front opening 15 for receiving the switching shaft). It has the general shape of a longitudinally rectangular frame with a front side 16, a rear side 17 and two narrow sides 18, 19.
  • a multiply perforated and stiffened by high intermediate wall sections 20 bottom 21 a generally cup-shaped functional space 22 is delimited within the side walls 16-19. The projecting into this space intermediate wall sections 20 serve to accommodate and delimitation of functional parts of the switch.
  • two mutually parallel switch chambers 23 are delimited, in the region of the bottom 21 to the functional space opposite terminal side 24 is lowered and broken by ventilation holes 25.
  • openings 15, 26 for receiving and supporting the switching shafts 13 are provided in the front and rear walls 16, 17.
  • the bottom 21 is, in particular in the area of frame-like upwardly projecting intermediate wall portions 20, multiple slot-like broken to receive functional parts, such as terminal tab 27 of mating contacts 28 or 29 shift springs.
  • the apertures 30 are slot-shaped with a widened middle part 72 (see FIG. 2).
  • openings 31 to each side of the control shaft 13 which are designed to receive fastening screws with which the switch can be attached to a device, such as a Elektroärme- or cooking appliance.
  • a device such as a Elektroärme- or cooking appliance.
  • 32 nuts are inserted secured against rotation in chambers (not shown).
  • the housing also contains separated by intermediate wall portions 20 terminal chambers 33.
  • the two contact surfaces 34 of the tabs are directed transversely to the longitudinal extent of the connecting chamber 33, which usually has a longitudinally rectangular shape.
  • slots 35 are arranged parallel to the direction of insertion of the flat tabs, which are different in their number and shape, ie their width and position for each of the terminal chamber 33. In still explained This way, a distinctive coded terminal arrangement is made possible.
  • Fig. 4 shows two units 36, each with two oppositely directed groups of three switching springs 29.
  • the switching springs 29 of each group are punched from a common board 36 of good electrically conductive resilient material. They then have on a leaf spring-like flexible portion 137 each have a V-shaped bend 37, which runs on a cam 14 of the shift shaft, and then a switching arm 38 which carries at its end an applied by spot welding or riveting switch contact 39.
  • For stiffening the switching arms their longitudinal sides are upwards, i. from the switching contacts, bent up and form longitudinal stiffeners 40.
  • Each board 36 may have any number of switching arms. It may also, if the function requires, individual switching arms be omitted.
  • Each two opposing boards 36 are connected by a connecting part 41 with each other. It consists of a stamped sheet metal part which is connected to the sinkers 36 by means of welding, riveting or embossing deformation 142 (similar to FIG. 20). Subsequent to a middle connecting bridge 42, a plate guiding the strip, they overlapping and stiffening transverse strip 43 is formed on each side. Each two Anschlußflachstecker protrude for each board 36, of which Connecting strips bent at right angles, through slots 44 in the board. Each unit 46 thus forms a functional section with a total of six contacts, which lie centrally at the same potential, but each have three different switching outputs for each of the two cam switch contained in the cam switch unit 11.
  • Fig. 1 shows that two of these units are arranged in the form of a double cam switch controller 11, so that each cam switch six mating contacts 28 can operate.
  • Mating contact parts 52, 53 are also produced as stamped sheet metal parts. Subsequent to a tab 26 of the mating contact portion 52 forming sheet metal section is two-stage widened T-shaped so that it forms on support shoulders 45, 49 for fixing position in the slots 30 and the deforming attachment. At the opposite side of the tab 27 a sheet metal tab 47 is cut out and bent obliquely to one side and then at right angles to the extension of the tab 27 having surface over the top edge 48 of the crossbar. In this area, a mating contact 28 is riveted or welded centrally above the flat plug level, e.g. a silver contact. The bent in the form of a "7" sheet metal tabs 47 has in the region of its more than 90 ° bend 50 on a bend facilitating hole 51.
  • Each switching shaft are, corresponding to the six switching arms 38, six mating contacts 28 are provided which are provided on four individual mating contact parts 52, each with a tab and a mating contact and a double mating contact part 53 with two mating contacts 28 and two tabs 27.
  • a locking part 54 which will be described in connection with FIGS. 9 and 9a. It is in a latching portion 55 near the front side 16 of the housing 12th arranged and works for detent fixing the switch shaft in the individual switching positions with a star wheel 56 (Fig. 9) together. In a cylindrical guide chamber 57 in the latching portion 55, the locking part 54 is guided. Its spherical head is pressed by means of a spring 58 into the recesses of the detent star 56.
  • the locking part 54 consists of a cylindrical sleeve-shaped part made of plastic with good sliding properties.
  • Fig. 6 shows schematically the plug 59, which are inserted on the connection side 24 in the connection chambers 33 and there contact the connector 27 (see also Fig. 2). It is in the basic form rectangular plug or sockets that have in 5 mm grid side by side contact sockets for electrically contacting recording of the terminal tab. On the outside of their plug housing they have web-like projections 60 which fit into the slots 35 of the terminal chambers. These projections are formed and arranged in cooperation with the slots 35 so that they represent a unique coding for the connected harness 170. Each one particular plug 59 thus fits only in a specific terminal chamber 33 and no other.
  • the control unit 11, which consists in the embodiment of two separately operable, formed by cam switches control units 61 may also be formed using even a single housing with even more, for example, four parallel control units.
  • the entire arrangement of the switch and in particular the Genosues is formed so that the belonging to the individual control units 61 functional components and their recordings in the housing 12 are limited to functional areas 62, within which the previously described functional components are arranged. Between these functional regions 62 there is in each case an intermediate region 63, which has no functional components and is only bridged by the connecting bridge 42 of the connecting part 41 of the two units 46.
  • Fig. 7 shows schematically a design of the plastic injection mold for a housing 12 of four control units 61 with different gagging distances, which build on the same base moldings.
  • the housing of the control unit 11 is produced by injection molding in molds, which are indicated schematically in Fig. 7 in two different versions.
  • molds which are indicated schematically in Fig. 7 in two different versions.
  • one Forming tool 65 which surrounds a base mold space 66 in the manner of a frame, individual mold cavities 68 are inserted, and in the exemplary embodiment, four mold cavities which each contain the (complementary) mold for a functional region 62.
  • mold spacers 67 are provided, which are inserted into the base mold space 66 and designed so that they fit the appropriate mold sections for the functional areas and thus form the intermediate regions 63.
  • These mold spacers 67 can be made of different widths and used in correspondingly wide basic mold spaces 66 together with the same functional mold sections 68. Since the intermediate portions 63 include only simple connectors, the associated mold cavities 67 are easy to produce in different widths, while the complicated shaped shape portions 68 can be used for the functional areas for all otherwise the same switch with different Knebelabstand.
  • the functional parts are prepared in the manner previously described. It is particularly advantageous that the boards 36 and possibly also further molded from sheet metal functional parts can be manufactured as a continuous band and immediately before installation, possibly even in the assembly machine, can be cut from this volume. This facilitates manufacture and assembly, in particular the supply of parts.
  • the preparation of the functional parts in the form of an endless belt also makes it possible, e.g. Produce boards 36 with different number of switching arms 38 by simply more or less wide pieces are separated from the belt.
  • the control shafts 13 are used, whereby they can be mounted by pivoting. They are guided with their front ends through the bearing apertures 15 and fixed at the back by clipping. It can be seen that the opening 26 are formed on the back without moving mold slide by matching cutouts 69 on the inside and outside of the rear wall 17. This also creates sufficient elasticity to depress the precisely sized shaft from above and snap into the opening 26.
  • the mating contact members 52, 53 and then the contact spring units 46 are inserted from the side of the functional space 22 ago with their terminal tabs 27 in the slots provided 30 until they define their position with their shoulders 45 or other attacks.
  • Verstemmungsschultern 49 barb-like issued metal tabs that engage on a daily basis.
  • the switch is normally mounted with the side of the functional space 22 down on a horizontal wall of the electrical appliance, for example on the bottom of a cooktop. As a result, this side and the current-carrying parts are covered therein, so that no separate cover is needed. So it is only a one-piece housing necessary.
  • the terminal side 24 then located above is now wired by means of the plug 59.
  • These plugs are located on prefabricated harnesses 170. They are plugged into the terminal chambers 33 and due to their coding via the slots 35 and the projections 60 they are unmistakably coded, so that no miswiring is possible.
  • the connectors also cover all live part on the connection side, so that there is no insulating cover is necessary.
  • the switch is inserted after installation in an electrical appliance on the one-sided flattening 70 provided with switching shaft 13 each have an unillustrated actuating knob or knob and the switch operated by turning the switch shaft.
  • the individual switching positions are determined by the latching star in cooperation with the latching part 54.
  • the switching cams 14 raise by means of the inherent resilience of their spring portions 137 which lie on the mating contacts 49 switch spring arms 38 according to the predetermined by the cam shapes switching scheme for opening by the cams cooperate with the bends 37.
  • the cam switch can thus serve two input poles as a result of its two switching spring units 46 and three outgoing poles of these connected differently.
  • the switch spring arms have in a switch spring unit 46 respectively in opposite directions
  • the three remaining connection tongues 27 can be used for further wiring.
  • connection part 41 which receives a different length connection bridge 42.
  • this connecting bridge can also be omitted.
  • the heat dissipation from the switch is good. In each switch occur due to switching sparks, ohmic heating in the switch components and in particular due to the contact resistance between the contacts and to the connectors heats, which can be problematic especially for electric heaters because of the high currents. Due to the open design, the ventilation is very good and the switch heating is kept within limits. This also contributes to the fact that in particular by the contact resistances of the connectors and the heat dissipating contact with the mating contacts thermally loaded tabs are also ventilated in that the slots 30 in which they are stuck, have a broadened central portion 71, through the air on the tab along can flow. Above all, but through the ventilation holes 25, the switch chamber 23 well ventilated and can dissipate heat generated by convection.
  • Fig. 8 shows a cross section through a variant with a two-part housing.
  • the switching shaft 13 is fixed between two housing parts 12a and 12b.
  • the terminal-side housing part 12b includes the terminal chambers 33 and the slots 35 through which the terminal tabs 27 protrude.
  • the functional-side housing part 12a defines the mating contact components 52a, 53a (see FIG. 10).
  • the cam switch works with a linearly movable contact bridge 72, which bridges two fixed mating contacts 49a, 49b.
  • the contact bridge consists of a small plate of fairly bulky flat material which has near its two ends depending on a switching contact 39a, 39b. Between these, a recess is provided on the upper longitudinal side in FIG. 8, in the middle of which a projection 73 cooperating with the switching cam 14 is provided.
  • connection-side housing part 12b which limits the switch chamber 23, is provided with ventilation slots 25a and otherwise formed round tunnel-shaped.
  • the two mating contact components 52a and 53a can be seen from FIG.
  • the individual mating contacts consist of a strip of flat material which has, subsequent to its Flachstekkerteil 27 has a laterally projecting arm 76 which is rotated in the material by 90 °, so that the mating contact 49a thereto by welding of a wire section, e.g. made of silver wire, can be attached.
  • a wire section e.g. made of silver wire
  • the mating contact component 53a contains on each side three mating contacts and two flat plugs 27, which each form a mirror image of a total of six mating contacts supporting unit, which bridges the distance between two cam switches.
  • the connecting bridge 42 between them is in turn made different in length according to the width of the intermediate section 63 depending on the toggle distance.
  • the contact bridge consists of a flat stamped part made of flat material.
  • the two switching contacts 39a, 39b are attached directly to the narrow sides by welding a wire, eg silver wire, which is then cut to length.
  • a wire eg silver wire
  • the shape can also be seen from Fig. 9, which shows the most essential functional components of a cam switch.
  • this switch makes it possible, like that of Figures 1 to 5, to make do with extremely small axial distances between the individual contact paths, namely in 5 mm grid. While there recognizable in Fig. 1, separated by intermediate wall sections 20 contact chambers 78 produce the necessary leakage current paths between the contacts, these are in the embodiment of FIGS. 8 to 10, the contact bridge chambers 75th
  • Fig. 8 shows the switch in the open position.
  • the switching cam 14 presses the contact bridge 72 against the force of the springs 74 down, so that between the respective associated contacts 39a, 49a and 39b, 49b, an opening gap is formed.
  • this needs to be according to the regulations only half as large as in a single contact, because the opening gaps add in so far respect.
  • the rollover safety The heat generated by the opening sparks is well distributed in the rather massive contact bridge 72.
  • the opening sparking is, however, lower compared to switches having only one contact pair.
  • the switch chamber 23 opens through the contact bridge chamber 75 opened at the bottom and the ventilation slots 25a vented good and heat-dissipating, through the slot spacers 71 (see FIGS. 1 and 2) and a ventilation flow along the tabs can flow.
  • the contact bridge 72 which is thermally stressed by the opening spark, is coated with cooling air along its surface.
  • FIGS. 1 to 10 enable cam switches for the sequential activation of different switching functions, for example a so-called 7-stroke circuit in electric cooking appliances or the different switching stages, grill, top heat and bottom heat or the like in ovens etc.
  • FIGS to 29 a plurality of combined in a unit 11 clocking power control units 80 each with its own switching shaft 13, 13a and superior dreipohligem cam switch 61st
  • the housing shown in Fig. 13 is generally and in particular in its Nockenschalterabites near the front 16 constructed as described with reference to FIG. 3.
  • the modular design of the mold sections with mold spacers to create different distances between the control shafts 13 from each other, as explained with reference to FIG. 7, is provided here.
  • the functional components of the cam switch part are the same as in the first-described embodiment. It eliminates only the second group of three of the cam switch and the control shaft 13 is correspondingly shorter and in a middle bearing 81, in which it can be snapped with its rear end out. Behind this intermediate bearing 81, a receiving chamber 82 for a manufactured as a functional module and there from the side of the functional space 22 forth usable power control device is provided in each case.
  • the two power controllers of the illustrated Two blocks are identical, but mirror-inverted installed offset.
  • mutually associated connections 83 can be directly connected to one another via the intermediate region 63, wherein it can be seen that different widths of the intermediate section can be compensated for by overlapping formation of the connection bridges 83 (FIG.
  • the basic principle of the power control module 80 can be best seen from Fig. 14, but which shows the module installed in a two-piece housing design according to Figures 8 to 10. It is a clocking power control unit that controls the released power adjustable by power pulses of different duty cycle and period. These devices are also referred to as "energy regulators”. They work thermally by means of a bimetal 84, which is heated in each case in synchronism with the consumer by a thick film heater 99 mounted on a ceramic plate 85. The bent bimetal is connected via a leaf spring bearing 86 with a metallic angle housing 87 and presses with its front, bent end 88 on a snap spring 89 of a snap switch 90.
  • the snap spring has a central, supported on a support finger 91 spring tongue 92, which its one contact 93rd bearing front end gives a snap characteristic.
  • the contact 93 cooperates with a mating contact 94.
  • the snap spring is connected near its end contacted by the bimetal with a parallel thereto spring portion 95 which is riveted to the snap spring carrier 94 and also forms its hinge leaf spring to the angle housing 87 out.
  • the snap-action spring carrier 94 forms, with a deflection 96, a wiper, which runs on a switching cam 97 which bears against a hollow control shaft 13 a of the power control device 80 is formed. It can be coupled to the control shaft 13 via a clutch 89 to be recognized in FIGS. 15 and 16.
  • the coupling is a dog clutch with a coding for connection to a corresponding control shaft 13, which also enables lateral displacement a coupling and thus mounting the control shaft from the functional space side.
  • the bimetal is supported via the ceramic plate 85 carrying the bimetallic heater 99 on an adjusting screw 100, which is screwed into a compensation bimetal 101 in FIGS. 14 and 17 (bimetal detail), which serves to compensate the influence of the room temperature on the power control.
  • the heater 99 is electrically contacted by a leg spring 102 at one end, which is shown in FIG. It is inserted with a coil spring portion on a pin 103 of a plastic side part 104 and extends from there along the upper edge of this side part, then traverses the housing of the control unit 80 and extends downward (see Fig. 12), with this leg 105 and one provided loop against the side of a mating contact member 52 (see Fig. 11) to press and contact this electrically.
  • the other terminal side of the heater 99 is formed by a receiving pocket 106 (FIG. 17) which keeps the ceramic pad 85 thermally contacted to the bimetal 84.
  • the frame of the power control module 80 is essentially formed of two parts, namely the plastic side part 104 and the angle frame 87. This is shown in Figures 18 and 19 in two variants, but the basic structure are the same: From a side plate 107, in the bearing 108 of the control shaft 13a is provided at an angle to an upper part 109 and a side part 110 bent. From this in turn by bending by 90 ° two tabs 27 are bent. At the root of one of the tabs, the angle housing is closed in terms of power, in that it is in turn connected to the side plate 107 by a stamped connection 111.
  • the angle frame is thus one made of a single piece of sheet metal, three mutually perpendicular parts comprehensive frame, which forms the housing and a torsionally rigid receptacle for the functional parts of the power control unit 80 together with the thus caulked tabs 112 connected plate-shaped plastic side part 104. At the same time, it makes the electrical connection via the flat latches 27.
  • the corresponding, connected to the mating contact terminal 113 consists of an angled in four planes sheet metal part with two in the predetermined grid parallel to each other directed flat tabs 27, a side part 114 (FIGS. 15 and 16) and an outside along the plastic side part 104 extending connecting rail 115, from the carrier of the mating contact 94 is angled and protrudes through the plastic side part.
  • a separate connecting web 83a may connect this connecting part 113 to that of the adjacent module.
  • FIG. 18 shows the variant of the angle frame 87, which is used together with the bimetal embodiment according to FIG. 17 (see also FIGS. 11, 12 and 15).
  • the compensation bimetal 101 according to FIG. 17 then has an incision 126 on the internal threaded hole which clampingly and thus self-holdingly holds the thread for the adjusting screw 100.
  • FIG. 1 Another type of fuse is shown in FIG.
  • the adjusting screw 100 is directly in the upper part 109 of the angle frame screwed on there provided an internal thread.
  • This thread is also provided in a bent around 180 ° tab 117, but when tapping the tab is slightly deformed elastically or plastically after tapping.
  • the snap spring carrier 94 is formed as a compensation bimetal.
  • Fig. 20 shows the preferred connection between sheet metal parts, such as between the sections 107 and 110 of the angle frame 87. It may also be provided in other places of the switch or power control device.
  • a hole is provided which has a constriction 118 in the direction of the part to be connected. Matching the dimensions of the hole 109, the part to be connected thereto has a pronounced projection 120 in the manner of a short pin. Hole and projection can be produced by the punching tool in the production of the sheet metal part. After both parts are joined together (see arrow), the projection 120 is "broadly stamped" in the hole in the manner of a riveting by a punch, so that a positive connection is formed, which has no over the surfaces of the interconnected parts projecting elements.
  • Figures 22 to 24 show an additional device to the power control unit 80.
  • a holding plate 122 is arranged parallel to the back 17, which carries the shaft 123 of a sliding contact 124 and contains its contact paths.
  • the sliding contactor 124 can serve various signaling or control functions, but also serve to transform the position of the control shaft 13a, which is equivalent to the setting of the power control device, into an electronically displayable form, i. to digitize. It thus represents an analog / digital converter.
  • the sliding contactor is a circular disc with sliding contacts 125 mounted thereon, which cooperate with corresponding contacts on the holding plate 22. There are provided according to the desired conversion interrupted circular contact paths, which can be closed by the contact springs 125.
  • the shaft has a flattened round profile, which fits into the corresponding profiled hollow control shaft 13a.
  • the unit 11 is a two-piece housing type as previously described. There are ventilation slots 126 can be seen in the upper part of the housing. These are also present in the embodiment of Figures 11 and 12, so that heat dissipation by convection is possible in cooperation with the apertures 25 in the ground, even if the housing is mounted so that it on the upper in Figures 11 and 12 Side tightly closed.
  • the switching shaft 13 is shown for an embodiment in which the power control device for an electric cooking appliance except a central Hauptmostage can heat a switchable additional heating, which is switched on the highest heating level (100% ED (relative duty cycle)). In this case, however, the power can be regulated back again after this switching on without the Additional heating zone is turned off. Only at the zero position of the power the additional heating zone is switched off.
  • a cam switch is provided which operates with a tow cam part 127. In the switching shaft, as shown in FIG.
  • a groove 128 is provided, which guides the formed in the form of an open ring tow cam member 127 by means of two inner projections 129 in the circumferential direction movable, but immovable in the axial direction.
  • the annular tow cam member 127 runs on a relation to the shift shaft 13 raised collar 130.
  • two switching cams 14 are provided which actuate the two outer switching arms 38 of the power control unit 80 upstream cam switch (see in Figs. 11 and 12, the two closed switch contacts 38 of the front and left switch group).
  • the tow cam portion 127 is provided for the middle switching arm 38.
  • the design as a simple longitudinally unslotted ring that can be snapped over the shaft makes the tow cam and the overall structure of this additional function particularly easy to manufacture and assemble.
  • An inlet slope and a thickened head 133 on the opposite side of the cam 14 a facilitate the introduction.
  • FIGS. 25 and 29 show the detents 56a for defining switching positions, which are limited here to one or a few positions, since the main region of the circumference remains without latching because the power control device 80 is infinitely and continuously adjustable. It is also a locking disk 133 can be seen, the start and end position limited by stop on a housing part to prevent rotation over 360 ° away.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Rotary Switch, Piano Key Switch, And Lever Switch (AREA)
  • Push-Button Switches (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Cookers (AREA)
  • Details Of Connecting Devices For Male And Female Coupling (AREA)
EP19980100267 1997-02-18 1998-01-09 Elektriches Steuergerät, insbesondere für Elektrowärmegeräte Expired - Lifetime EP0860846B1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE1997106252 DE19706252A1 (de) 1997-02-18 1997-02-18 Elektrisches Steuergerät, insbesondere für Elektrowärmegeräte
DE19706252 1997-02-18

Publications (3)

Publication Number Publication Date
EP0860846A2 EP0860846A2 (de) 1998-08-26
EP0860846A3 EP0860846A3 (de) 1999-03-10
EP0860846B1 true EP0860846B1 (de) 2005-09-21

Family

ID=7820641

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980100267 Expired - Lifetime EP0860846B1 (de) 1997-02-18 1998-01-09 Elektriches Steuergerät, insbesondere für Elektrowärmegeräte

Country Status (4)

Country Link
EP (1) EP0860846B1 (es)
DE (2) DE19706252A1 (es)
ES (1) ES2251041T3 (es)
PL (1) PL185975B1 (es)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29818196U1 (de) 1998-10-12 1999-01-07 DREEFS GmbH Schaltgeräte und Systeme, 96364 Marktrodach Nockendrehschalter
DE19942964A1 (de) * 1999-09-09 2001-03-15 Ego Elektro Geraetebau Gmbh Elektrisches Schaltgerät
DE10002625B4 (de) * 2000-01-22 2010-03-11 E.G.O. Elektro-Gerätebau GmbH Verfahren zur Herstellung eines Schaltgerätesockels
DE20014695U1 (de) 2000-08-25 2000-12-07 E.G.O. Elektro-Gerätebau Gmbh, 75038 Oberderdingen Elektromechanisches Steuergerät für Elektrowärmegerät
DE10317276A1 (de) * 2003-04-11 2004-10-21 E.G.O. Elektrogerätebau GmbH Anordnung von Schalteinrichtungen
EP1873869B1 (de) 2006-06-28 2013-07-10 Weidmüller Interface GmbH & Co. KG Elektrisches Modul
DE202006014058U1 (de) 2006-09-06 2007-03-01 E.G.O. Elektro-Gerätebau GmbH Elektromechanisches Einstellgerät mit einer Drehachse
DE102007029289A1 (de) * 2007-06-18 2009-01-02 E.G.O. Elektro-Gerätebau GmbH Anschlussteil, Verfahren zur Herstellung eines solchen Anschlussteils und Schalteinrichtung mit mindestens einem solchen Anschlussteil
DE102017203810B4 (de) 2017-03-08 2023-09-14 E.G.O. Elektro-Gerätebau GmbH Bedieneinrichtung für ein Elektrogerät und Elektrogerät
CN112786336A (zh) * 2020-12-31 2021-05-11 广州市玛高电器有限公司 用于旋转开关的插脚以及旋转开关

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DE1094845B (de) * 1959-04-09 1960-12-15 Ego Elektro Blanc & Fischer Mehrstufenschalter fuer Elektrowaermegeraete, insbesondere fuer Elektroherde
DE1590137B2 (de) * 1966-07-21 1971-04-08 Brown, Boven & C ie AG, 6800 Mann heim Elektrischer drehschalter
DE2604783C3 (de) * 1976-02-07 1979-10-04 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen Elektrischer Nockenschalter
DE2744074C2 (de) * 1977-09-28 1982-05-13 Schleicher Gmbh & Co Relais-Werke Kg, 1000 Berlin Anschlußleiste für den Deckel eines elektrischen Gerätes
DE3050926C2 (es) * 1980-05-07 1987-08-13 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
IT206626Z2 (it) * 1985-07-30 1987-09-08 Vebe Elettromecc Termostato dotato di morsetti d'uscita allineati.
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EP0622819A1 (de) * 1993-10-12 1994-11-02 Landis & Gyr Technology Innovation AG Temperaturgesteuerte Schalteinrichtung

Also Published As

Publication number Publication date
ES2251041T3 (es) 2006-04-16
DE59813062D1 (de) 2006-02-02
EP0860846A2 (de) 1998-08-26
EP0860846A3 (de) 1999-03-10
PL185975B1 (pl) 2003-09-30
PL324844A1 (en) 1998-08-31
DE19706252A1 (de) 1998-08-20

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