EP0865058B1 - Régulateur électrique de puissance, en particulier pour appareils de chauffage électrique - Google Patents

Régulateur électrique de puissance, en particulier pour appareils de chauffage électrique Download PDF

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Publication number
EP0865058B1
EP0865058B1 EP98100266A EP98100266A EP0865058B1 EP 0865058 B1 EP0865058 B1 EP 0865058B1 EP 98100266 A EP98100266 A EP 98100266A EP 98100266 A EP98100266 A EP 98100266A EP 0865058 B1 EP0865058 B1 EP 0865058B1
Authority
EP
European Patent Office
Prior art keywords
control device
casing
switch
cam
camshaft
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
EP98100266A
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German (de)
English (en)
Other versions
EP0865058A3 (fr
EP0865058A2 (fr
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 EP0865058A2 publication Critical patent/EP0865058A2/fr
Publication of EP0865058A3 publication Critical patent/EP0865058A3/fr
Application granted granted Critical
Publication of EP0865058B1 publication Critical patent/EP0865058B1/fr
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
    • H01H89/00—Combinations of two or more different basic types of electric switches, relays, selectors and emergency protective devices, not covered by any single one of the other main groups of this subclass
    • H01H89/04—Combination of a thermally actuated switch with a manually operated switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H37/00—Thermally-actuated switches
    • H01H37/02—Details
    • H01H37/04—Bases; Housings; Mountings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H61/00—Electrothermal relays
    • H01H61/06—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts
    • H01H61/063—Self-interrupters, i.e. with periodic or other repetitive opening and closing of contacts making use of a bimetallic element

Definitions

  • a switch with several cam switches arranged parallel to one another are known become, each of which an unspecified power control device assigned.
  • Each cam switch contains a plate with its switch contacts and is, with the others together, built into a common sheet metal frame, which carries the power control unit and the control shafts.
  • the object of the invention is to provide a power control device create that with simple and uncomplicated construction well integrated into an overall control concept.
  • the housing of the power control unit is made of two simple ones Basic components built, namely a three sides of the flat box-shaped frame comprising sheet metal section, which the contains a bearing for the control shaft, and a side part in the form of a plate made of plastic or ceramic, the which has other storage.
  • the sheet metal section can the bimetal and the snap switch of the thermally acting Wear power control unit and to manufacture a stiff housing part through an embossing deformation into one three-dimensional frame to be closed.
  • This basic housing can also, if necessary, by turning into a another level, the tabs for connecting a Have poles and the attachment of the power control unit, while the other pole, also with tabs provided in a 5 mm grid on a connecting rail is provided, which runs along the insulating housing part and together with the tabs of the base housing part allows a "four-legged" attachment on one level.
  • a power control device which, as independent, pre-assembled and adjusted functional Module can be used. It can be used individually or in several a control unit can be used, for example one block containing several control units. This one can have one-piece frame for each power control unit has a cam switch with control shaft. Behind each is a holder for a power control module so provided that the control shaft of the power control device with the control shaft of the cam switch aligned and operated by a clutch becomes. Adjacent modules are preferably mirror images installed to each other.
  • control shaft of the module from can be operated from both sides and thus designed symmetrically is that they are also installed in the opposite position can be, despite the mirror image arrangement Operability in the same direction of rotation Control shaft guaranteed because then on the control shaft arranged curve each in the same direction has the same slope. With automatic production can this is done by appropriate coding of the components.
  • the control shaft is preferably a hollow shaft so that e.g. the clutch to the control shaft of the cam switch via a Type claw coupling can be done while still from the Back of other accessories, e.g. a sliding contactor for digital signaling of the rotational position of the shaft can be connected.
  • the power control module is a very flat, box-shaped and yet for good ventilation and heat dissipation Bimetal heating heat open and ventilable module from only about 15 mm thick, so that the control shaft only needs to be approx. 20 mm long.
  • the electrical supply and contacting as a thick film heater provided on a ceramic plate on the bimetal Control heating can be by a long leg spring done with coil spring sections on the insulating housing part runs along and on a tab of the entire housing resilient.
  • This switch can in the power control device according to the invention by a Drag cams happen, i.e. a switch cam of the front-mounted cam switch, the one on the control shaft between two Stops can be freely rotated by approx. 300 to 320 °.
  • a narrow ring provided at a circumferential position, which with inner guide projections in a groove of Wave leads.
  • This narrow and compact in cross-section, Unslotted ring can also be conveniently used on a control shaft accommodate the individual switch cams only 5 mm apart so that a 5 mm grid is maintained can be.
  • Figures 1 to 5 show an electrical control unit 11 in Form of a double cam switch with one from a thermo or thermosetting plastic part existing housing 12 and two control units 61, the two stored therein, mutually parallel control shafts 13 with switching cams 14 exhibit.
  • the switch housing which can be seen in particular from FIG. 3 for the double cam switch is made of plastic injection molding manufactured essentially without undercuts so that it is in a two-part form with only a few form slides (e.g. for the front opening 15 to accommodate the selector shaft) can be produced. It has the general form of a along rectangular frame with a front 16, one Back 17 and two narrow sides 18, 19. By one multiple openwork and through upstanding partition sections 20 stiffened bottom 21 is generally bowl-shaped Functional space 22 within the side walls 16 to 19 demarcated. The partitions protruding into this room 20 are used to accommodate and delimit functional parts of the switch. There are two in the functional space 22 switch chambers 23 arranged parallel to one another, in their area the floor 21 to the functional room opposite connection side 24 lowered and from Ventilation holes 25 is broken.
  • switch chambers 23 In the area of the switch chambers 23 are in the front and Rear wall 16, 17 openings 15, 26 for receiving and storage the switching shafts 13 provided.
  • the bottom 21 is, in particular in the area of frame-like upward projecting intermediate wall sections 20, several times perforated like a slot around functional parts, such as flat connectors 27 of mating contacts 28 or switching springs 29 take.
  • the openings 30 are slit-shaped with a widened middle part 72 (see FIG. 2).
  • control shaft 13 which is used to hold fastening screws are designed with which the switch on a device, for example, an electric heating or cooking device attached can be.
  • 32 nuts are secured against rotation in chambers inserted (not shown).
  • connection chambers 33 the flat tabs 27 protrude from their bottom, which on the Functional parts 28, 29 molded or connected to this are. They are parallel to each other in a given grid aligned. A preferred grid spacing is 5 mm.
  • the two contact surfaces 34 of the flat plug are directed transversely to the longitudinal extent of the connection chamber 33, which usually has a longitudinally rectangular shape. In the Longitudinal walls of the connection chambers are parallel to the direction of insertion of tabs 27 slots 35 arranged, the in number and shape, i.e. their width and position for each of the connection chamber 33 are different. In yet explained way thereby a distinctive coded Connection arrangement allows. Fig.
  • FIG. 2 shows that the connector are arranged in a grid, but not all Grid positions are occupied. For example, at in Fig. 2 upper left chamber on three in a 5 mm grid side by side arranged tab 27 a gap, then what again two connector tabs 27 in the grid consequences.
  • the pitch between the plugs is 5 mm or a multiple thereof or 2.5 (also a 7.5 mm click distance is possible).
  • Fig. 4 shows two units 36, each with two opposite one another directed groups of three switching springs 29.
  • the Switch springs 29 of each group are from a common one Board 36 made of a good electrically conductive, resilient material punched. You then have a leaf spring like flexible section 137 each have a V-shaped bend 37, the runs on a cam 14 of the shift shaft, and then a switch arm 38 which at one end through Spot welding or riveting switch contact 39 wearing. To stiffen the switching arms are their long sides upwards, i.e. away from the switch contacts, bent up and form longitudinal stiffeners 40. Each board 36 can one have any number of switching arms. It can also if the function requires, individual switching arms are omitted his.
  • Connecting part 41 connected to each other. It consists of a stamped sheet metal part that can be welded, riveted or an embossing deformation 142 (similar to FIG. 20) with the blanks 36 is connected. Subsequent to a middle connecting bridge 42 on each side is a board leading them overlapping and stiffening transverse strips 43 formed. ever two connector tabs for each board 36 protrude from 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 that are centered on the same potential, but three different switching outputs for each of the two in the cam switch unit 11 have included cam switch.
  • Fig. 1 shows that two of these units in the double cam switch Control unit 11 are arranged so that each cam switch can operate six counter contacts 28.
  • Counter-contact parts 52, 53 are also stamped sheet metal parts manufactured. Subsequent to a tab 26 the counter-contact part 52 forming sheet metal section in two stages T-shaped widened so that it on support shoulders 45, 49 for Position fixation in the area of the slots 30 and the deforming Attachment forms. On the opposite of the tab 27 A sheet metal tab 47 is cut out in the center and out diagonally to one side and then perpendicular to Extension of the surface having the tab 27 over the upper edge 48 of the crossbar bent. In this area there is a mating contact 28 in the middle above the flat plug level riveted or welded, e.g. a silver contact. The in the form of a "7" curved sheet metal tab 47 points in the area its more than 90 ° bend 50 a turn relieving hole 51.
  • each counter contact 28 is provided on four individual counter contact parts 52 each with a flat plug and a mating contact and a double mating contact part 53 with two mating contacts 28 and two tabs 27 are provided.
  • the functional parts also include a locking part 54, which is still will be described in connection with FIGS. 9 and 9a. It is in a locking section 55 near the front 16 of the housing 12 arranged and works to lock the switch shaft with a locking star in the individual switching positions 56 (Fig. 9) together. In a cylindrical guide chamber 57 in the locking section 55, the locking part 54 is guided. His spherical head is inserted into the recesses by means of a spring 58 of the star 56 pressed.
  • the locking part 54 is made from a cylindrical sleeve-shaped part made of plastic with good sliding properties. It has a spherical contact surface to the locking star and on its back a sleeve-like Recess for guiding the spring 58. It combines the Advantages of a locking ball (insensitivity to tilting, Low friction) with those of a locking slide (easy to manufacture and assembly).
  • Fig. 6 shows schematically the connector 59 on the connection side 24 are inserted into the connection chambers 33 and there contact the connector 27 (see also Fig. 2). It are rectangular plugs in the basic form or Plug sockets, the contact sockets next to each other in a 5 mm grid for electrically contacting connection of the flat connector to have. On the outside of their connector housing they have web-like protrusions 60 which fit into the slots 35 of the connection chambers fit. These projections work together formed and arranged with the slots 35 so that it is a distinctive one for the connected wiring harness 170 Represent coding.
  • One specific connector each 59 therefore only fits into a connection chamber 33 intended for this purpose and in no other.
  • control unit 11 which in the exemplary embodiment consists of two can be operated separately from one another by means of cam switches formed control units 61 can be used also a uniform housing with even more, for example, four parallel control units his.
  • the entire arrangement of the switch and in particular the housing is designed so that the individual Control units 61 belonging functional components and their Recordings in the housing 12 limited to functional areas 62 are within which the previously described functional components are arranged. Between these functional areas 62 there is an intermediate area 63, which is not Has functional components and only from the connecting bridge 42 of the connecting part 41 of the two units 46 is bridged.
  • Fig. 7 shows schematically a design of the plastic injection mold for a housing 12 of four control units 61 with different gag spacings that are on the same Assemble basic molded parts.
  • the housing of the control unit 11 is injection molded made in shapes shown in Fig. 7 in two different Versions are indicated schematically.
  • a Molding tool 65 which surrounds a base molding space 66 like a frame, individual mold cavities 68 are used, namely in Embodiment four mold cavities, each for one Functional area 62 which contain (complementary) form.
  • mold spacers 67 are provided, which in the Base molding space 66 used and are designed so that they to the corresponding mold sections for the functional areas Connect appropriately and thus the intermediate areas 63 to form.
  • These shape spacers 67 can be different be made wide and in correspondingly wide basic form spaces 66 together with the same functional mold sections 68 be used. Since the intermediate sections 63 are only simple Containing connectors are the associated mold nests 67 easy to manufacture in different widths, while the complex shaped sections 68 for the functional areas for all other switches with the same different gag spacing can be used.
  • the functional parts are in the manner previously described prepared. It is particularly advantageous that the Boards 36 and possibly also other functional parts formed from sheet metal can be manufactured as a continuous belt and immediately before installation, if necessary still in the assembly machine, can be cut to length from this tape. This makes it easier Manufacturing and assembly, especially the feeding Of the parts.
  • the preparation of the functional parts in the form of a Endless belt also makes it possible, e.g. Boards 36 with different Number of switching arms 38 to produce by simply cut more or less wide pieces off the tape become.
  • the control shafts 13 are used, whereby by Swing in can be mounted. You will be with her front ends passed through the bearing openings 15 and fixed on the back by clipping. It's closed recognize that the opening 26 at the back without moving Shaped slide through matching cutouts 69 are formed on the inside and outside of the rear wall 17. This also creates sufficient elasticity to be precise press down the measured shaft from above and into the To snap breakthrough 26.
  • connection side 24 only a caulking by in the area of one the shoulders 49 the flat material with a chisel-like tool is expanded laterally to form-fit the parts set. But it would also be possible to connect to the connector instead of these caulking shoulders 49 barb-like To form exhibited sheet metal tabs that snap into place automatically.
  • the entire supply of all Units i.e. the main part of the assembly, from one side here, namely from the functional space side 22.
  • the housing is due to its many Partitions 20, which are also one-sided for the functional parts delimit open chambers, stiffened very well, so that too Switch blocks with e.g. four or more in parallel Cam switches can be produced with relatively little material are.
  • the switch is thus ready for installation and connection.
  • the switch is normally installed with the side of the Functional room 22 down on a horizontal wall of the electrical device, for example on the floor a hob. As a result, this side and the live ones Parts covered in it, so that no separate cover is needed. So it's just a one-piece case necessary.
  • connection side 24 then at the top is now by means of Plug 59 wired.
  • Plugs are on before assembled cable harnesses 170. They are in the connection chambers 33 inserted and due to their coding on the Slits 35 and the protrusions 60 are distinctive coded so that no miswiring is possible.
  • the Connectors also cover all live parts the connection side, so that there is no insulating Cover is necessary.
  • the cam switch can thus due to its two switching spring units 46 two input poles and from each of them operate three output poles switched differently.
  • the three remaining connecting tongues 27 can be used for further wiring.
  • the only functional component that is different for switches The distance between the gags must be different Connecting part 41, which has a connecting bridge of different lengths 42 receives. In the event that the cam switch too this connecting bridge can be separated on the input side also dropped.
  • Fig. 8 shows a cross section through a variant with a two-piece housing.
  • the switching shaft 13 between two housing parts 12a and 12b set.
  • the connection side Housing part 12b contains the connection chambers 33 and Slots 35 through which the terminal tabs 27 protrude.
  • the functional-side housing part 12a places the counter-contact components 52a, 53a (see Fig. 10).
  • the cam switch works with a straight movable contact bridge 72, bridging the two fixed mating contacts 49a, 49b.
  • the Contact bridge consists of a plate made of quite massive Flat material that has a switch contact near its two ends 39a, 39b. Between these is at the in Fig.
  • the contact bridge is located in a contact bridge chamber 75, which supports the springs and the contact bridge leads, but otherwise largely open is. In it, it behaves in such a way that it is easily shown in FIG. 8 is vertically movable. Also the corresponding section of the floor in the connection-side housing part 12b, which is the switch chamber 23 limited, is provided with ventilation slots 25a and in the others are round and tunnel-shaped.
  • the two mating contact components 52a and 53a are from FIG. 10 to recognize.
  • the individual counter contacts consist of one Flat material strip, which is attached to its flat-paneled part 27 has a laterally projecting arm 76 which is rotated by 90 ° in the material, so that the mating contact 49a by welding from a wire section, e.g. made of silver wire, can be attached.
  • a wire section e.g. made of silver wire
  • punched and laterally barb-like exhibited sections 77 can also without the component Define support by the second housing part.
  • the mating contact member 53a contains three on each side Mating contacts and two tabs 27, each mirror image a total of six counter contacts to each other load-bearing unit that form the distance between two Bridged cam switches.
  • the one between them Connection bridge 42 is again in accordance with the width of the intermediate section 63 varies depending on the distance between the gags made long.
  • the contact bridge consists of a flat stamped part Flat material.
  • the two switch contacts 39a, 39b directly to the narrow sides by welding from one Wire, e.g. Silver wire attached, which was then cut to length becomes.
  • the shape can also be seen from Fig. 9, which the essential functional components of a cam switch shows.
  • This switch also makes it possible, like that according to the figures 1 to 5, with extremely small axial distances get along between the individual contact tracks, namely in 5 mm grid. While there can be seen in Fig. 1, by Intermediate wall sections 20 separated contact chambers 78 the necessary leakage current paths between the contacts produce, these are in the embodiment of Fig. 8 to 10 the contact bridge chambers 75.
  • Fig. 8 shows the switch in the open position.
  • the switch cam 14 presses the contact bridge 72 against the force of Springs 74 downward, so that they belong together Contacts 39a, 49a and 39b, 49b an opening gap arises.
  • this only needs half to be as big as with a single contact because the Opening slit in this respect with regard to the rollover security add.
  • the heat generated by the opening sparks is well distributed in the rather massive contact bridge 72
  • opening spark formation is only one Contact pair switches lower.
  • Figures 1 to 10 cam switches for sequential Control of different switching functions, for example a so-called 7-stroke circuit in electric cooking appliances or the different activation of switching stages, Grill, top heat and bottom heat or the like for ovens etc. enable
  • Figures 11 to 29 show several in one Unit 11 combined clocking power control units 80 each with its own control shaft 13, 13a and superior three-pole cam switch 61.
  • the housing shown in Fig. 13 is general and especially in constructed its cam switch section near the front 16 so as described with reference to FIG. 3.
  • the functional components of the cam switch part the same as in the first described embodiment. Only the second group of three of the cam switch is omitted and the control shaft 13 is correspondingly shorter and in a middle storage 81, in which it with its rear Is snapped in the end. Behind this interim storage facility 81 is a receiving chamber 82 for a functional one Module manufactured and there from the side of the functional space 22 ago usable power control device provided.
  • the two power control units of the illustrated Blocks of two are identical, but mirror images of each other offset installed.
  • the basic principle of the power control module 80 can best of Fig. 14, but the module in a two-part housing design according to FIGS. 8 to 10 shows installed. It is a clocked power control device, that the released power adjustable through power pulses of different duty cycles and period controls. These devices are also called “energy regulators" designated. They work thermally using a Bimetal 84, which is from one on a ceramic plate 85th attached thick film heater 99 in synchronism with the Consumer is heated. The curved bimetal is over one Leaf spring bearing 86 with a metallic angular housing 87 connected and pushes 88 with its front bent end to a snap spring 89 of a snap switch 90.
  • Die Snap spring has a middle one, on a support finger 91 supported spring tongue 92, which carries a contact 93 front end gives a snap characteristic.
  • the Contact 93 cooperates with a counter contact 94.
  • the Snap spring is near its end contacted by the bimetal connected to a spring section 95 running parallel thereto, which is riveted to the snap spring carrier 94 and also whose hinge leaf spring forms towards the angular housing 87.
  • the snap spring support 94 forms with a bend 96 a grinder that runs on a switching curve 97, which a hollow control shaft 13a of the power control device 80 is molded. It is with the control shaft 13 via a 15 and 16 coupling 89 can be coupled.
  • the coupling is a claw coupling with a coding for the connection to a corresponding control shaft 13, which also by shifting sideways a clutch and thus one Assembly of the control shaft from the functional room side allows.
  • the bimetal is supported by the bimetal heater 99 supporting ceramic plates 85 on an adjusting screw 100, 14 and 17 (bimetal detail) into a compensation bimetal 101 is screwed in, which balances the influence the room temperature serves on the power tax.
  • the heater 99 is supported by a leg spring 102 at one end electrically contacted, which is shown in Fig. 21. she is with a coil spring section on a pin 103 a Plastic side part 104 inserted and runs from there along the top of this side panel, then cross that Housing of the control unit 80 and runs downwards (see Fig. 12) to with this leg 105 and one provided thereon Loop against the side of a mating contact component 52 (see Fig. 11) and to contact it electrically.
  • connection side of the heater 99 is through a pocket 106 formed (Fig. 17), the ceramic plate 85 on the bimetal 84 keeps thermal contact.
  • the framework of the power control module 80 essentially becomes formed by two parts, namely the plastic side part 104 and the angular frame 87.
  • This is in Figures 18 and 19 shown in two variants, but the basic structure are the same: from a side plate 107 in which the bearing 108 the control shaft 13a is provided, an upper part is angular 109 and a side part 110 bent. From this are in turn bent two tabs 27 each by bending through 90 °. At the root of one of the tabs is the angle housing closed by force that it again with the side plate 107 connected by an embossed connection 111 is.
  • the angle frame is therefore made of a single piece of sheet metal manufactured, three mutually perpendicular parts comprehensive framework, which together with the caulked over Tab 112 connected plate-shaped plastic side part 104 the housing and a torsionally rigid receptacle for forms the functional parts of the power control unit 80. At the same time, it provides the flat tabs 27 electrical connection.
  • the corresponding one, with the counter contact connected port 113 consists of one in four Flat angled sheet metal part with two in the given Grid parallel tabs 27, a side part 114 (FIGS. 15 and 16) and one along the outside of the plastic side part 104 extending connecting rail 115, from which the carrier of the mating contact 94 is angled and protrudes through the plastic side panel.
  • connecting bridge 83 shown can be a separate connecting web 83a with this connecting part 113 connect to that of the neighboring module.
  • Fig. 18 shows the variant of the angular frame 87 that together with the bimetallic version according to FIG. 17 is used (see also Fig. 11, 12 and 15).
  • the compensation bimetal 101 of FIG. 17 then points to the internally threaded hole an incision 116 on the thread for the adjusting screw 100 clamping and thus designed to be self-holding.
  • FIG. 19 Another type of backup is shown in FIG. 19.
  • the adjustment screw 100 is directly in the upper part 109 of the angle frame via an internal thread provided there screwed.
  • This thread is also bent in a 180 ° Tab 117 provided, however, when tapping the tab is deformed somewhat elastically or after tapping plastic.
  • the snap spring carrier 94 is as a compensation bimetal educated.
  • FIG. 20 shows the preferred connection between sheet metal parts, as between sections 107 and 110 of the angle frame 87. You can also at other points of the switch or power control unit be provided.
  • a hole in the direction of the one to be connected Part has a constriction 118. Suitable for the The dimension of the hole 109 has the part to be connected to it a pronounced projection 120 in the manner of a short one Pin. Hole and protrusion can be through the punch are generated in the manufacture of the sheet metal part. After this both parts are joined together (see arrow), is by a stamp of the projection 120 in the hole like one Rivet "broadly shaped", so that a positive connection arises that does not have any over the areas of each other connected parts has protruding elements.
  • Figures 22 to 24 show an additional device to the Power control unit 80.
  • a holding plate 122 is parallel arranged to the rear 17, the shaft 123 of a sliding contactor 124 carries and contains the contact tracks.
  • the wiper contactor 124 can be various signal or Control functions operate, but also serve the position the control shaft 13a, which is synonymous with the setting the power control unit is in an electronic transform displayable shape, i.e. digitize. He So represents an analog / digital converter.
  • the sliding contactor is a circular disc with attached Sliding contacts 125, the corresponding contacts the holding plate 22 work together. There are corresponding the desired change interrupted circular contact tracks provided that closed by the contact springs 125 can be.
  • the shaft has a flattened round profile, into the correspondingly profiled hollow control shaft 13a fits.
  • the unit 11 is an embodiment with two-part housing, as previously described. It there are ventilation slots 126 in the upper part of the housing. These are also in the execution according to the figures 11 and 12 available so that in cooperation with the breakthroughs 25 heat can be dissipated in the floor by convection is, even if the housing is mounted so that it is on the in Figures 11 and 12 top side sealed is.
  • the shift shaft 13 is for a Execution shown in which the power control unit for a Electric cooking appliance besides a central main heating surface can heat a switchable additional heating surface, which on the highest heating level (100% ED (relative duty cycle)) switched on becomes. However, the performance after this Switching on are regulated back without the Additional heating zone is thereby switched off. Only at the zero position the additional heating zone is switched off.
  • a cam switch is provided, which with a Drag cam part 127 works.
  • FIG. 29 shows a groove 128 is provided, which in the form of a open ring trained drag cam part 127 by means of two inner projections 129 movable in the circumferential direction, but leads immovably in the axial direction.
  • the ring-shaped Drag cam part 127 runs on one opposite the Shift shaft 13 raised collar 130. Laterally from collar 130 two switching cams 14 are provided, the two outer Switch arms 38 of the upstream of the power control unit 80 Operate the cam switch (see the two in Fig. 11 and 12 closed switching contacts 38 of the front or left Switch group).
  • For the middle switching arm 38 that is Drag cam part 127 is provided. This is at the crown of its cam 14a has a locking recess 133 into which the Sliding element of the switching arm, i.e. the V-shaped bend 37, intervenes when it comes to switching on. Then this is given when lateral projections 132 on the drag cam 127 come to rest on stops 133 (Fig. 29).
  • Figures 25 and 29 show the detents 56a for fixing Switch positions that are in one or a few positions are limited because the main area of the scope without Detent remains because the power control unit 80 is infinitely variable and is continuously adjustable. It is also a Detection disc 133 to recognize the start and end position limited by a stop on a housing part by one rotation prevent over 360 °.

Landscapes

  • Thermally Actuated Switches (AREA)
  • Control Of Resistance Heating (AREA)
  • Cleaning And Drying Hair (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Control Of Voltage And Current In General (AREA)

Claims (13)

  1. Régulateur électrique de puissance, en particulier pour appareils de chauffage électriques, avec un bimétal (84) chauffé et un interrupteur à basculement (89) ainsi qu'un arbre de commande (13a) agissant sur ces derniers pour un réglage de puissance cadencé, tous placés dans un boítier, caractérisé en ce que le boítier du régulateur de puissance (80) de construction modulaire présente deux éléments de base :
    un boítier de base (87) formé en trois dimensions à partir d'une section de tôle qui s'étend uniquement sur trois côtés du régulateur (80) et qui comprend sur une partie latérale (107) un palier (108) pour l'arbre de commande (13a), et qui porte l'interrupteur à basculement (89) et le bimétal (84),
    une partie de boítier isolante (104) en forme de plaque, formant une deuxième partie latérale, qui comporte le deuxième palier pour l'arbre de commande (13a), et qui est reliée audit boítier de base (87).
  2. Régulateur selon la revendication 1, caractérisé en ce que le bimétal (84) et l'interrupteur à bascule (89) sont placés sur une pièce latérale étroite (110) du boítier de base (87).
  3. Régulateur selon la revendication 1 ou 2, caractérisé en ce que ladite partie latérale (107) et ladite pièce latérale étroite (110) sont reliées entre elles, de préférence par un matriçage (111).
  4. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce que sur le boítier de base (87), de préférence sur la pièce latérale étroite (110), a été formée au moins une languette plate (27) qui est enfichable dans au moins une fente (30) du boítier (12) dans le but de fixer le régulateur de puissance (80) dans le boítier (12) d'une commande (11) pouvant contenir une ou plusieurs unités de commande (61, 80).
  5. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce qu'un contre-contact fixe (134) de l'interrupteur à basculement (89) s'étend à travers un orifice dans la partie de boítier isolante (104), ce contre-contact étant prévu sur une extrémité d'un rail de raccordement (115) qui, le cas échéant coudé à plusieurs endroits, porte à son autre extrémité au moins une languette plate (27) qui est enfichable dans au moins une fente (30) du boítier (12) dans le but de fixer le régulateur de puissance (80) dans le boítier (12) d'une commande (11) pouvant contenir une ou plusieurs unités de commande (61, 80), et dans lequel un pont de jonction (83, 83a) vers un régulateur de puissance (80) voisin est prévu ou peut être prévu de préférence sur ledit rail de raccordement.
  6. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce que l'établissement du contact électrique pour le chauffage du bimétal (99) s'opère par un ressort à branches (102) plusieurs fois coudé, logé sur la partie de boítier isolante (104) et guidé le long de celle-ci et le cas échéant le long du boítier de base (87), et qui s'appuie d'une part sur le chauffage du bimétal (99) et d'autre part contre une pièce de raccord (27) dans un boítier (11) accueillant le régulateur de puissance (80).
  7. Régulateur selon quelqu'une des revendications précédentes, caractérisé par un dispositif de freinage empêchant la rotation accidentelle d'une vis d'ajustage, et dans lequel est prévu de préférence un taraudage dans une section du boítier de base (87), ainsi qu'un second taraudage dans une section coudée (117) de ce dernier, et en ce que lesdites deux sections comportant les taraudages sont comprimées ou décalées l'une par rapport à l'autre dans le sens axial du filet ; ou en ce qu'un taraudage possédant une fente adjacente est prévu pour obtenir une compression contrôlée du filet.
  8. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce qu'un contacteur coulissant (24) peut être raccordé au régulateur de puissance (80), de préférence par encliquetage sur la face arrière du boítier (12).
  9. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce que l'arbre de commande (13a) du régulateur de puissance (80) est relié à l'arbre de commande d'un combinateur à cames mécaniquement placé en amont, qui est logé dans un boítier (12) pouvant contenir une ou plusieurs unités de commande (61).
  10. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce qu'une came à décalage angulaire (127) est disposée sur l'arbre de commande (13) d'un combinateur à cames situé en amont de façon à lui permettre une rotation limitée en vue de l'activation ou de la désactivation commandée par fin de course d'un appareil additionnel, cette dite came à décalage angulaire étant dotée d'une came (14a) avec un taquet (131) pour un commutateur actionnée par ladite came, et étant réalisée en forme d'anneau ouvert encliqueté sur l'arbre de commande (13), et cet anneau présente sur sa face intérieure des saillies (129), qui coulissent dans une rainure (128) de l'arbre de commande (13), et coopère au moyen de saillies latérales (132) avec les saillies correspondantes de l'arbre de commande (13).
  11. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce que plusieurs unités de commande (61) avec des arbres de commande (13) parallèles les uns par rapport aux autres sont placées dans le boítier (12) unique s'étendant sur toutes les unités de commande (61) et de préférence fabriqué d'un seul tenant et sans couvercle.
  12. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce qu'il contient plusieurs unités de commande (61) avec des éléments fonctionnels inversés par rapport à ceux de l'unité de commande (61) voisine.
  13. Régulateur selon quelqu'une des revendications précédentes, caractérisé en ce qu'au moins un, de préférence plusieurs régulateurs de puissance (80) peuvent être placés sous forme de modules fonctionnels et le cas échéant calibrés dans un compartiment d'accueil (82) d'un boítier (12), qu'ils peuvent être enfichés dans ce boítier au moyen des languettes plates (27) formées et qu'ils peuvent le cas échéant être reliés par un accouplement à griffes (89) à l'arbre de commande (13) d'un combinateur à cames.
EP98100266A 1997-02-18 1998-01-09 Régulateur électrique de puissance, en particulier pour appareils de chauffage électrique Expired - Lifetime EP0865058B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19706248A DE19706248A1 (de) 1997-02-18 1997-02-18 Elektrisches Leistungssteuergerät, insbesondere für Elektrowärmegeräte
DE19706248 1997-02-18

Publications (3)

Publication Number Publication Date
EP0865058A2 EP0865058A2 (fr) 1998-09-16
EP0865058A3 EP0865058A3 (fr) 1999-03-10
EP0865058B1 true EP0865058B1 (fr) 2003-10-29

Family

ID=7820637

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98100266A Expired - Lifetime EP0865058B1 (fr) 1997-02-18 1998-01-09 Régulateur électrique de puissance, en particulier pour appareils de chauffage électrique

Country Status (4)

Country Link
EP (1) EP0865058B1 (fr)
DE (2) DE19706248A1 (fr)
ES (1) ES2208975T3 (fr)
TR (1) TR199800257A3 (fr)

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1238856A (fr) * 1968-05-10 1971-07-14
DE2604783C3 (de) * 1976-02-07 1979-10-04 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen Elektrischer Nockenschalter
DE2625716C3 (de) * 1976-06-09 1979-10-11 E.G.O. Elektro-Geraete Blanc U. Fischer, 7519 Oberderdingen Leistungssteuergerät
US4274546A (en) * 1977-12-29 1981-06-23 Robertshaw Controls Company Condition responsive electrical switch construction and parts and methods therefor
DE2815987C2 (de) * 1978-04-13 1986-02-06 E.G.O. Elektro-Geräte AG, Zug Temperaturregler
DE3017486C2 (de) * 1980-05-07 1985-07-11 Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart Regel- und Steuereinrichtung für elektrische Heizgeräte
DE3050926C2 (fr) * 1980-05-07 1987-08-13 Bosch-Siemens Hausgeraete Gmbh, 8000 Muenchen, De
DE8701091U1 (fr) * 1987-01-23 1987-03-12 Buderus Ag, 6330 Wetzlar, De
DE3941186C2 (de) * 1989-12-13 1996-07-25 Bosch Siemens Hausgeraete Schaltvorrichtung für eine Kochstellensteuerung bei Haushalt-Elektroherden
DE29503476U1 (de) * 1995-03-02 1996-07-04 Kloeckner Moeller Gmbh Befestigungsanordnung eines Schaltschlosses im Formgehäuseunterteil eines Niederspannungsschalters

Also Published As

Publication number Publication date
DE59809992D1 (de) 2003-12-04
EP0865058A3 (fr) 1999-03-10
DE19706248A1 (de) 1998-08-20
TR199800257A2 (xx) 1998-09-21
EP0865058A2 (fr) 1998-09-16
ES2208975T3 (es) 2004-06-16
TR199800257A3 (tr) 1998-09-21

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