EP0018296A1 - Wicklung oder Drahtgitter verwendbar in Regeltransformatoren, Leistungs- oder Präzisionspotentiometern, Potentiometern für Kodierungszwecke, gewickelten Widerständen, elektrischen Radiatoren und Wärmeaustauschern - Google Patents

Wicklung oder Drahtgitter verwendbar in Regeltransformatoren, Leistungs- oder Präzisionspotentiometern, Potentiometern für Kodierungszwecke, gewickelten Widerständen, elektrischen Radiatoren und Wärmeaustauschern Download PDF

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Publication number
EP0018296A1
EP0018296A1 EP19800400543 EP80400543A EP0018296A1 EP 0018296 A1 EP0018296 A1 EP 0018296A1 EP 19800400543 EP19800400543 EP 19800400543 EP 80400543 A EP80400543 A EP 80400543A EP 0018296 A1 EP0018296 A1 EP 0018296A1
Authority
EP
European Patent Office
Prior art keywords
flange
coil
slots
central flange
central
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.)
Granted
Application number
EP19800400543
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English (en)
French (fr)
Other versions
EP0018296B1 (de
Inventor
Serge Ungari
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.)
Individual
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Individual
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Filing date
Publication date
Priority claimed from FR7910156A external-priority patent/FR2457002A1/fr
Priority claimed from FR7910155A external-priority patent/FR2455345A1/fr
Application filed by Individual filed Critical Individual
Priority to AT80400543T priority Critical patent/ATE7251T1/de
Publication of EP0018296A1 publication Critical patent/EP0018296A1/de
Application granted granted Critical
Publication of EP0018296B1 publication Critical patent/EP0018296B1/de
Expired legal-status Critical Current

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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C10/00—Adjustable resistors
    • H01C10/30—Adjustable resistors the contact sliding along resistive element
    • H01C10/301—Adjustable resistors the contact sliding along resistive element consisting of a wire wound resistor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C1/00—Details
    • H01C1/14—Terminals or tapping points or electrodes specially adapted for resistors; Arrangements of terminals or tapping points or electrodes on resistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01C—RESISTORS
    • H01C17/00—Apparatus or processes specially adapted for manufacturing resistors
    • H01C17/04—Apparatus or processes specially adapted for manufacturing resistors adapted for winding the resistive element

Definitions

  • the invention relates to a winding of resistive or conductive wire, its support and the slider which, according to the shape which they take, can be used in variable transformers, potentiometers of power or precision, potentiometric encoders and wirewound resistors or heating resistors.
  • An extrapolation of one of the forms of the winding (trellis) finds its application in heat exchangers.
  • the winding support has the shape of a torus.
  • This torus is a ring obtained by stacking magnetic sheets in the form of cylindrical flat rings in the case of variable transformers; in the case of power potentiometers this torus is a ceramic ring.
  • the winding itself is wound on the ring cord in contiguous turns of an enamelled copper wire, in the case of the variable transformer, and an insulated or enamelled resistant wire in the case of the power potentiometer. Laminiaturization of such products is difficult because it is difficult to thread the resistant wire into the ring to execute the turns, and this is all the more delicate as the torus is small and the resistant or conductive wire is thin.
  • the enamelled copper wire used is necessarily very fine because in fact the smaller the variable transformer and the more it requires a large number of turns, which makes it very fragile because the wire can be very easily damaged by the cursor (even if the latter has the shape of a roulette).
  • the torus shape does not lend itself well to the establishment of the axis which supports the cursor.
  • the winding method is simpler because the winding is outside its support and therefore adapts to the production of this product in all dimensions.
  • it allows the use of a significantly larger resistant or insulated conductive wire (since it can be accommodated), which makes the product more efficient.
  • the central flange being able to have the shape of a gear, which obliges the cursor to have the shape of a miniature gear removes practically any "scraping" of the wire of the winding by the cursor of or a still improved longevity and the possibility of producing a very low cost potentiometric encoder.
  • FIGS. 1 and 2 The most general case of the coil which is the subject of the invention is presented in FIGS. 1 and 2.
  • the winding of the coil is obtained by winding a copper or resistant wire, enameled or insulated, according to a method which is shown in Figures 12 and 13.
  • the first end is welded to one of the conductive eyelets ( 1) crimped in the central flange (2).
  • the resistant, or conductive, insulated wire then follows the following path: it passes above the central flange (2) in the slot (47), crosses the flange (5) through one of its slots (6), passes through the groove (7), makes N1 turns in this groove (7), crosses the flange (5) through one of its slots (6), goes back above the central flange (2) in the slot (48), crosses the flange (9 ) through one of its slots (6), makes N2 turns in the groove (11), crosses the flange (9) through one of its slots (6), passes back above the central flange (2) in the slot (49) adjacent to the slot (48), crosses the flange (5) through one of its slots (6), makes N3 turns in the groove (7), crosses the flange (5) through one of its slots (6), returns to the above the central flange (2) and so on until the resistant, or conducting, insulated wire has covered the desired periphery of the flange (2).
  • N1, N2, N3 ?? Nk loops can be made either in contiguous or non-contiguous turns, or in honeycombs depending on the size of the windings and the desired quality. They can be performed in the same direction if the coil is used in a variable transformer. In the case of potentiometers we can consider making these latter aselfic by winding N1, N3, N5, N7 etc ... in one direction and N2, N4, N6 etc ... in the other direction (but other methods are possible.). In the case of variable transformers we have the important case:
  • Nk N (constant number of turns in rows.).
  • FIGS. 1 and 2 The general appearance of the finished coil is given in FIGS. 1 and 2.
  • the two collectors (8) and (12) are then connected to the eyelets (1) by a conducting wire.
  • the resistant wire starts from the conductive plate (26), passes over the central flange (2) at point (17), makes a turn in the groove (27) around the axis (3), goes back above the flange central (2) at point (18) just in front of the previous passage (17), makes a turn in the groove (28) around the axis (3), goes back above the central flange (2) at point (19) just in front of the point (18), make a turn in the groove (27), and so on until the winding has covered the desired periphery of the central flange (2).
  • the turns are contiguous on the axis (3), (for example the turns (23) and (24).).
  • the second end is welded to the plate (25).
  • the plates (25) and (26) are then connected to the eyelets (1) crimped in the central flange (2) by a conducting wire and the latter will themselves be connected to the two collector readers (8) and (12) by a common thread.
  • the two collectors are recesses in the axis (3) separated by a wall (34).
  • the arrangement of the strands is well represented by the three strands (30), (31), (32): the strand (30) leaves from the point (44) of the manifold (15) furthest from the central flange (2) passes above the latter at point (45) and ends at point (46) of the collector (16) closest to the central puddle (2 ); the strand (32) starts from the point (38) of the collector (15), the point closest to the central flange (2), passes above the latter at point (39) and ends at point (40) of the collector (16) point furthest from the central flange (2); the strand (31), which is a strand which occupies an intermediate position, starts from the point (41) of the collector (15) passes above the central flange (2) at point (42) intermediate between points (39) and (45) and ends at point (43) of the axis (3): the more the strands (4) start from the input manifold (15) by one point away from the central flange (2) and the more they will reach the outlet manifold tie (16) at a point close to the
  • FIGS 14, 15, 16 and 17 on page 3 show a pouring spout (50) projecting alumina suspended in water (51) through the screen (52) on the periphery of the central flange (2 ) the coils rotating around their axes, in the direction (53) for example.
  • This has the effect of removing the enamel at the point of contact between the thread conductor had resistant with the cursor in the case where these coils are used in variable tranaforsatsnrs, potentiometers and potentiometric coders.
  • the central flange (2) may or may not have teeth.
  • FIG. 23 presents the case where the central flank is a gear; the cursor (99) then comprises a pinion-shaped roller (92) made of a good conductive material which comes to touch the strands of the winding which are at the bottom of the teeth: the tooth (93) comes to touch the strand (94) of the winding and, the central flange rotating, the tooth (95) will touch the strand (96).
  • FIGS. 21 and 22 show a cursor which can be used in the case where the coil which is the subject of the invention according to FIGS. 1 and 2 is used in variable transformers.
  • Figures 21 and 22 show a cursor holder (84) with its plug (82) and the cursor in two parts (86) and (87) good conductors of electricity and separated by an insulating part (83). These two parts lead either to two Zener diodes (85) and (88) by means of the tongues (90), or to a carbon plate (91). The two Zéner diodes are then joined together on the one hand, and at the output on the other hand as shown in Figure 24. In the case of FIG. 22, it is the carbon plate which is joined to the output terminal.
  • the springs (89) maintain the contact of the sliders on the manifold (2). It goes without saying that the distance between the two parts (86) and (87) must be such that there is always at least one of the parts in contact with the winding.
  • FIGS. 25 and 26 show the cursor to be used in this case: it has two parts (105) and (106) good conductors of electricity and in the form of gears from which one tooth has been removed in two; the two parts are placed so that together they form a complete gear.
  • FIGs 13 and 14 show a first application of the coil (4) object of the invention in the case of a variable transformer.
  • This coil (4) has the appearance of a coil shown in Figures 1 and 2 and is placed on the same central core (61) of the magnetic circuit as a normal coil (54).
  • the cursors (69) connected to the outputs (66) and (68) and rubbing on the collectors (8) and (12) and the cursor (56) connected to the output (67) and rubbing on the periphery of the central flange (2) of the coil (4) object of the invention.
  • the flanges (62) and the outer frame (63) form the rest of the magnetic circuit.
  • the gear (58) By turning the gear (58) the latter rotates the double pinion (57) and the latter rotates the coil (4), which will vary the output voltage between the terminals (67) and (68) and the terminals (66) and (67).
  • the input voltage is applied to the input terminals (64) and (65) which lead to the coil (54).
  • the plate (60) connected to the gear (58) has graduations which indicate the output voltage.
  • the handle (59) makes it possible to manually rotate the gear.
  • Figures 17 and 18 show a coil (4) used in a variable auto transformer using, for a magnetic cieuit (79), sheets cut into E and I.
  • Figures 19 and 20 show the coil (4) used in a variable autotransformer using a cut magnetic circuit (79) ("C Il Core).
  • the coil (4) is centered on the axis of the magnetic circuit by a support (80) whose central hole has the shape of the branch of the magnetic circuit which passes in the axis of the coil (4) and whose periphery has the shape of a cylinder.
  • the rotation of the coil is obtained by rotating the axis (77) driving the pinion (78) in rotation
  • the support (81) keeps the pinion (78) in position.
  • Figures 15 and 16 show an example of the use of the coil (4) in a three-phase variable transformer.
  • the magnetic circuit comprises three magnetic cores (72), (73), (74) parallel and equidistant from each other; the magnetic circuit is closed by the two flanges (70) and (71).
  • Each magnetic core has a coil (4) and a coil (54).
  • the three coils rotate by the same relative angle thanks to the pinion (78), and we have access to this pinion thanks to the axis (77).
  • FIGS. 26 and 27 represent a potentiometer with a coil (4), the obtaining of which has been described on page (4) of this same patent, from line 6 to line 27.
  • the sliders (69) rub against the collectors (8) and (12) and are connected to the output terminals (66) and (68).
  • the reference voltage is applied between terminals (66) and (68); the cursor (56) senses the intermediate voltage and is connected to the output terminal (67), the assembly is enclosed in a box (112).
  • the resistor (113) which is shown here outside the housing (112) is applied between the terminal (67) and (68), the latter being connected to the slider rubbing on the collector (12) which itself is connected to the strand (114) furthest from the central flange (2). It can be demonstrated that there is a value for the resistance (113) making it possible to obtain a potentiometer whose linearity is acceptable in many applications.
  • Figures 28 and 29 show an electric radiator comprising a coil (4) whose winding was obtained by winding an enameled copper wire on a central flange (2) of large diameter and an axis (3) of small diameter.
  • the two collectors (8) and (12) of Figures 3 and 4 here become the slip rings (126) isolated from the axis (3) by rings (125) of insulating material.
  • the axis (3) has a gear (124).
  • the coil (4) is rotated, in the direction (53) for example, by the micromotor (122) thanks to its output pinion (123.
  • the mains voltage is taken to the slip rings (126) via coals (129) placed in their carbon holder (131).
  • the radiator has two compartments (118) and (120) separated by a wall (119) which is poor conductor of heat: the compartment (118) contains the coil (4 ) and the compartment (120) the micromotor and the thermostat.
  • the ambient air enters through the lower part of the two compartments according to the arrows (130) and (132) and leaves hot through the upper part of the compartment (118) according to the arrow (135)
  • the ambient air, entering the compartment (120) maintains the temperature of the engine (122) at a reasonable value and on the other hand gives exact information of the room temperature to the thermostat.
EP19800400543 1979-04-23 1980-04-21 Wicklung oder Drahtgitter verwendbar in Regeltransformatoren, Leistungs- oder Präzisionspotentiometern, Potentiometern für Kodierungszwecke, gewickelten Widerständen, elektrischen Radiatoren und Wärmeaustauschern Expired EP0018296B1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT80400543T ATE7251T1 (de) 1979-04-23 1980-04-21 Wicklung oder drahtgitter verwendbar in regeltransformatoren, leistungs- oder praezisionspotentiometern, potentiometern fuer kodierungszwecke, gewickelten widerstaenden, elektrischen radiatoren und waermeaustauschern.

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
FR7910156A FR2457002A1 (fr) 1979-04-23 1979-04-23 Transformateur variable
FR7910156 1979-04-23
FR7910155A FR2455345A1 (fr) 1979-04-23 1979-04-23 Potentiometre et resistance bobines industriels
FR7910155 1979-04-23

Publications (2)

Publication Number Publication Date
EP0018296A1 true EP0018296A1 (de) 1980-10-29
EP0018296B1 EP0018296B1 (de) 1984-04-25

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EP19800400543 Expired EP0018296B1 (de) 1979-04-23 1980-04-21 Wicklung oder Drahtgitter verwendbar in Regeltransformatoren, Leistungs- oder Präzisionspotentiometern, Potentiometern für Kodierungszwecke, gewickelten Widerständen, elektrischen Radiatoren und Wärmeaustauschern

Country Status (2)

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EP (1) EP0018296B1 (de)
DE (1) DE3067608D1 (de)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2495309A1 (fr) * 1980-12-03 1982-06-04 Ungari Serge Systeme de comptage pour l'utilisation des codeurs potentiometriques dans la mesure des deplacements pour les machines-outils et la mesure des angles pour les diviseurs
FR2496966A2 (fr) * 1979-04-23 1982-06-25 Ungari Serge Enroulement en fil de cuivre emaille ou en fil resistant isole ou emaille et son support utilisables dans les radiateurs electriques et les potentiometres de puissance
FR2497049A1 (fr) * 1980-12-19 1982-06-25 Ungari Serge Enroulement en fil resistant et sa disposition dans un radiateur electrique
GB2407214A (en) * 2003-10-14 2005-04-20 Magtech A S Variable inductor
US6933822B2 (en) 2000-05-24 2005-08-23 Magtech As Magnetically influenced current or voltage regulator and a magnetically influenced converter
US7026905B2 (en) 2000-05-24 2006-04-11 Magtech As Magnetically controlled inductive device

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR814458A (fr) * 1936-01-20 1937-06-24 Prise de courant pour appareil comportant des éléments à des potentiels différents
US2453725A (en) * 1946-02-14 1948-11-16 Magnetic Devices Inc Coil-supporting structure
US2709051A (en) * 1951-09-26 1955-05-24 Western Electric Co Apparatus for coiling filamentary articles
FR1468742A (fr) * 1964-07-17 1967-02-10 Asea Ab Bobine commutable
FR2039184A1 (de) * 1969-04-15 1971-01-15 Schmid Kurt
DE1765787A1 (de) * 1968-07-17 1971-10-14 Metrawatt Gmbh Dekadisch einstellbares Potentiometer
FR2344109A1 (fr) * 1976-03-08 1977-10-07 Ungari Serge Transformateur statique a noyau central

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR814458A (fr) * 1936-01-20 1937-06-24 Prise de courant pour appareil comportant des éléments à des potentiels différents
US2453725A (en) * 1946-02-14 1948-11-16 Magnetic Devices Inc Coil-supporting structure
US2709051A (en) * 1951-09-26 1955-05-24 Western Electric Co Apparatus for coiling filamentary articles
FR1468742A (fr) * 1964-07-17 1967-02-10 Asea Ab Bobine commutable
DE1765787A1 (de) * 1968-07-17 1971-10-14 Metrawatt Gmbh Dekadisch einstellbares Potentiometer
FR2039184A1 (de) * 1969-04-15 1971-01-15 Schmid Kurt
FR2344109A1 (fr) * 1976-03-08 1977-10-07 Ungari Serge Transformateur statique a noyau central

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2496966A2 (fr) * 1979-04-23 1982-06-25 Ungari Serge Enroulement en fil de cuivre emaille ou en fil resistant isole ou emaille et son support utilisables dans les radiateurs electriques et les potentiometres de puissance
FR2495309A1 (fr) * 1980-12-03 1982-06-04 Ungari Serge Systeme de comptage pour l'utilisation des codeurs potentiometriques dans la mesure des deplacements pour les machines-outils et la mesure des angles pour les diviseurs
FR2497049A1 (fr) * 1980-12-19 1982-06-25 Ungari Serge Enroulement en fil resistant et sa disposition dans un radiateur electrique
US6933822B2 (en) 2000-05-24 2005-08-23 Magtech As Magnetically influenced current or voltage regulator and a magnetically influenced converter
US7026905B2 (en) 2000-05-24 2006-04-11 Magtech As Magnetically controlled inductive device
US7193495B2 (en) 2000-05-24 2007-03-20 Espen Haugs Magnetically influenced current or voltage regulator and a magnetically influenced converter
US7256678B2 (en) 2000-05-24 2007-08-14 Magtech As Magnetically controlled inductive device
GB2407214A (en) * 2003-10-14 2005-04-20 Magtech A S Variable inductor

Also Published As

Publication number Publication date
EP0018296B1 (de) 1984-04-25
DE3067608D1 (en) 1984-05-30

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