EP0320414A1 - Voltage regulator with a ferro-resonance filter with a cooling device - Google Patents

Voltage regulator with a ferro-resonance filter with a cooling device Download PDF

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Publication number
EP0320414A1
EP0320414A1 EP88420406A EP88420406A EP0320414A1 EP 0320414 A1 EP0320414 A1 EP 0320414A1 EP 88420406 A EP88420406 A EP 88420406A EP 88420406 A EP88420406 A EP 88420406A EP 0320414 A1 EP0320414 A1 EP 0320414A1
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EP
European Patent Office
Prior art keywords
regulator
ferro
coils
assembly
magnetic
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Granted
Application number
EP88420406A
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German (de)
French (fr)
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EP0320414B1 (en
Inventor
Maurice Budin
Pierre Veyrand
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Automatismes Energie Electronique Systemes SAS
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Automatismes Energie Electronique Systemes SAS
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Publication of EP0320414B1 publication Critical patent/EP0320414B1/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/08—Cooling; Ventilating
    • H01F27/085—Cooling by ambient air
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S128/00—Surgery
    • Y10S128/92—Computer assisted medical diagnostics
    • Y10S128/921—Diet management

Definitions

  • the present invention relates to an improvement made to ferro-magnetic voltage regulators in which the properties of ferro-resonance are used for the saturation of magnetic circuits and which are used in particular in inverters as well as in voltage stabilizing regulators and for which the properties of ferro-resonance with saturation of the magnetic circuit are used in the voltage regulation process.
  • such regulators consist essentially of a magnetic circuit associated with coils.
  • the regulators marketed to date give satisfaction from a simple functional point of view, but lead, for a given power and performance to heavy and bulky assemblies (therefore expensive), taking into account that the evacuation of the heat losses released both by the magnetic circuit only by the various windings which, to date, is produced simply by controlling the temperature of the ambient air surrounding the device, the heat exchange being carried out by simple natural conduction and convection.
  • the assembly allowing this extraction of heat losses is constituted by a forced air circulation, directed against one of the surface of the regulator and flowing along the other surfaces.
  • the single appended figure illustrates, schematically, and in perspective an embodiment of a regulator according to the invention.
  • the regulator itself consists, conventionally, of a ferromagnetic circuit (1) associated with coils (2).
  • an assembly allowing the extraction of the thermal losses released both by the magnetic circuit (1) and by the coils (2), this assembly being designated by the general reference (3) and consisting essentially of a fan (4) disposed opposite the coils (2).
  • This fan (4) is mounted on a support (5) and its air flow is channeled, for example by means of a box (6) which extends from the support (5) to near the coils and this, so that the air flow acts on the entire surface of the regulator.
  • the air flow escapes on the one hand through the windings, and on the other hand and above all, laterally along the walls of the regulator.
  • the air flow will be a function of the power of the regulator, therefore of the calorific losses which occur, and will be adjusted to extract practically most of these losses in spite of a very limited heating of the system both on the peripheral surface and '' inside coil and magnetic core.

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Transformer Cooling (AREA)
  • General Induction Heating (AREA)

Abstract

Régulateur de tension ferro-magnétique dans lequel on utilise les propriétés de la ferro-résonnance pour la saturation des circuits magnétiques du type comportant un circuit ferro-magnétique (1) associé à des bobinages, caractérisé en ce qu'il est combiné avec un ensemble (3) permettant une extraction forcée des pertes thermiques dégagées tant par le circuit magnétique (1) que par les différents bobinages (2), ladite extraction forcée étant obtenue par action sur la surface externe externe des composants dudit régulateur.Ferro-magnetic voltage regulator in which the properties of ferro-resonance are used for the saturation of magnetic circuits of the type comprising a ferro-magnetic circuit (1) associated with coils, characterized in that it is combined with an assembly (3) allowing forced extraction of the heat losses released both by the magnetic circuit (1) and by the various windings (2), said forced extraction being obtained by action on the external external surface of the components of said regulator.

Description

La présente invention concerne un perfectionnement apporté aux régulateurs de tension ferro-magnétique dans lesquels on utilise les propriétés de la ferro-réson­nance pour la saturation des circuits magnétiques et qui sont utilisés notamment dans les onduleurs ainsi que dans les régulateurs stabilisateurs de tension et pour lesquels on utilise les propriétés de ferro-résonnance avec saturation du circuit magnétique dans le processus de régulation de tension.The present invention relates to an improvement made to ferro-magnetic voltage regulators in which the properties of ferro-resonance are used for the saturation of magnetic circuits and which are used in particular in inverters as well as in voltage stabilizing regulators and for which the properties of ferro-resonance with saturation of the magnetic circuit are used in the voltage regulation process.

D'une manière générale, de tels régulateurs sont constitués essentiellement d'un circuit magnétique as­socié à des bobinages.In general, such regulators consist essentially of a magnetic circuit associated with coils.

Les régulateurs commercialisés à ce jour donnent satisfaction d'un simple point de vue fonctionnel, mais conduisent, pour une puissance et des performances don­nées à des ensembles lourds et volumineux (donc coûteux), compte-tenu que l'évacuation des pertes ther­miques dégagées tant par le circuit magnétique que par les différents bobinages qui, à ce jour, est réalisé simplement en contrôlant la température de l'air ambiant environnant le dispositif, l'échange thermique étant réalise par simple conduction et convection naturelles.The regulators marketed to date give satisfaction from a simple functional point of view, but lead, for a given power and performance to heavy and bulky assemblies (therefore expensive), taking into account that the evacuation of the heat losses released both by the magnetic circuit only by the various windings which, to date, is produced simply by controlling the temperature of the ambient air surrounding the device, the heat exchange being carried out by simple natural conduction and convection.

Dans d'autres applications telles que par exemple le domaine des transformateurs, régulateurs de courant, il a été proposé depuis fort longtemps d'y incorporer des systèmes de refroidissement permettant d'évacuer les pertes thermiques. Parmi les solutions proposées, on pourrait citer celles faisant l'objet de la DOS-2 417 175 qui fait appel à une circulation de fluide à l'in­térieur d'un régulateur de courant, celles faisant l'ob­ jet du brevet US 3 819 965 et 4 032 839 concernant des transformateurs et régulateurs de tension et dans les­quels le refroidissement est obtenu au moyen d'une cir­culation d'un fluide canalisé à l'intérieur de circuits bien définis. Dans toutes ces solutions, les systèmes de refroidissement sont complexes et impliquent une adapta­tion des constituants des appareils.In other applications such as for example the field of transformers, current regulators, it has been proposed for a long time to incorporate cooling systems therein for evacuating heat losses. Among the proposed solutions, one could cite those subject to DOS-2 417 175 which calls for a circulation of fluid inside a current regulator, those making the ob jet of US Pat. No. 3,819,965 and 4,032,839 relating to voltage transformers and regulators and in which the cooling is obtained by means of a circulation of a fluid channeled inside well defined circuits. In all these solutions, the cooling systems are complex and involve an adaptation of the components of the devices.

Or on a trouvé, et c'est ce qui fait l'objet de la présente invention, qu'il était possible, dans le cas des régulateurs de tension à filtre ferro-résonnant, non seulement d'assurer l'évacuation des pertes thermiques, mais également de réaliser des régulateurs de dimensions notablement réduites par rapport aux régulateurs actuels et ce, pour une puissance et performance sensiblement identiques, en associant au dit régulateur un ensemble permettant une extraction forcée des pertes thermiques dégagées tant par le circuit magnétique que par les différents bobinages, l'extraction étant obtenue en agissant sur le maximum de la surface des différents constituants du régulateur, ces derniers n'étant quant à eux pas modifiés par rapport aux solutions antérieures.Now it has been found, and this is what is the subject of the present invention, that it was possible, in the case of voltage regulators with ferro-resonant filter, not only to ensure the evacuation of heat losses , but also to produce regulators of significantly reduced dimensions compared to current regulators and this, for a substantially identical power and performance, by associating with said regulator an assembly allowing a forced extraction of the heat losses released both by the magnetic circuit and by the different windings, the extraction being obtained by acting on the maximum of the surface of the various constituents of the regulator, the latter not being modified with respect to the previous solutions.

De manière simple, conformément à l'invention, l'ensemble permettant cette extraction des pertes ther­miques est constitué par une circulation d'air forcée, dirigée contre l'une des surface du régulateur et s'écoulant le long des autres surfaces.In a simple manner, in accordance with the invention, the assembly allowing this extraction of heat losses is constituted by a forced air circulation, directed against one of the surface of the regulator and flowing along the other surfaces.

La figure unique annexée illustre, schématiquement, et en perspective un exemple de réalisation d'un régula­teur conforme à l'invention.The single appended figure illustrates, schematically, and in perspective an embodiment of a regulator according to the invention.

Si l'on se reporte à cette figure, le régulateur proprement dit est constitué, de manière conventionnel­le, d'un circuit ferro-magnétique (1) associé à des bobinages (2). Conformément à l'invention, sur l'un des côtés du régulateur, par exemple du côté de la surface portant le bobinage (2), est disposé un ensemble permet­tant l'extraction des pertes thermiques dégagées tant par le circuit magnétique (1) que par les bobines (2), cet ensemble étant désigné par la référence générale (3) et étant constitué essentiellement d'un ventilateur (4) disposé en regard des bobines (2). Ce ventilateur (4) est monté sur un support (5) et son flux d'air est canalisé, par exemple au moyen d'un boitier (6) qui s'étend depuis le support (5) jusqu'à proximité des bobines et ce, de telle sorte que le flux d'air agisse sur toute la surface du régulateur. Le flux d'air s'échappe d'une part au travers des bobinages, et d'au­tre part et surtout, latéralement le long des parois du régulateur. Bien entendu, le débit d'air sera fonction de la puissance du régulateur, donc des pertes calorifi­ques qui se produisent, et sera réglé pour extraire pra­tiquement la plus grande partie de ces pertes malgré un échauffement très limité du système tant sur la surface périphérique qu'à l'intérieur bobinage et noyau magnéti­que.If we refer to this figure, the regulator itself consists, conventionally, of a ferromagnetic circuit (1) associated with coils (2). According to the invention, on one side of the regulator, for example on the side of the surface carrying the winding (2), is arranged an assembly allowing the extraction of the thermal losses released both by the magnetic circuit (1) and by the coils (2), this assembly being designated by the general reference (3) and consisting essentially of a fan (4) disposed opposite the coils (2). This fan (4) is mounted on a support (5) and its air flow is channeled, for example by means of a box (6) which extends from the support (5) to near the coils and this, so that the air flow acts on the entire surface of the regulator. The air flow escapes on the one hand through the windings, and on the other hand and above all, laterally along the walls of the regulator. Of course, the air flow will be a function of the power of the regulator, therefore of the calorific losses which occur, and will be adjusted to extract practically most of these losses in spite of a very limited heating of the system both on the peripheral surface and '' inside coil and magnetic core.

On a constaté, qu'en procédant de cette manière, on obtenait non seulement un refroidissement de l'ensemble, mais que, par ailleurs, il était possible d'obtenir un dimensionnement réduit du régulateur et ce, pour une puissance et des pertes sensiblement identiques. A titre illustratif, il a été possible de réaliser un régulateur de 5KVA pesant environ soixante kilos et ayant un en­combrement de 25 dm³ alors, qu'à ce jour, un régulateur équivalent ayant une puissance de 5KVA et dont l'évacua­ tion des pertes thermiques est réalisée uniquement par contrôle de la température de l'air ambiant environnant, par simple conduction et convection naturelles, pesait quant à lui environ cent cinquante kilos pour un encom­brement de 70 dm³ Une telle réduction du dimensionne­ment des constituants du régulateur peut s'expliquer par le fait que l'adjonction de l'ensemble d'extraction des pertes thermiques dégagées, permet d'augmenter considé­rablement le rapport pertes joules sur pertes fer et ce, sans altération sensible des pertes totales et autres performances du régulateur.It was found that, by proceeding in this way, not only did the assembly cool down, but also, it was possible to obtain a reduced dimensioning of the regulator, and this, for a power and losses substantially identical. By way of illustration, it was possible to make a 5KVA regulator weighing approximately sixty kilos and having a footprint of 25 dm³ whereas, to date, an equivalent regulator having a power of 5KVA and whose discharge tion of the heat losses is carried out only by controlling the temperature of the surrounding ambient air, by simple natural conduction and convection, for its part weighed approximately one hundred and fifty kilos for a space requirement of 70 dm³. Such a reduction in the dimensioning of the components of the regulator can this can be explained by the fact that the addition of the assembly for extracting the heat losses released, makes it possible to considerably increase the ratio of joule losses to iron losses, without any significant deterioration of the total losses and other performances of the regulator.

Bien entendu, l'invention n'est pas limitée à l'exemple de réalisation décrit précédemment mais elle en couvre toutes les variantes réalisées dans le même esprit.Of course, the invention is not limited to the embodiment described above, but it covers all the variants produced in the same spirit.

Ainsi, pour des régulateurs de très grande puis­sance, il pourrait être envisagé d'utiliser d'autres systèmes d'extraction des pertes joules que la simple circulation d'air forcée, par exemple d'utiliser un système de fluide de refroidissement ou toute autre combinaison de système (circulation d'eau, ailettes ou dissipateurs couplés au niveau du circuit magnétiques..).Thus, for very high power regulators, it could be envisaged to use other systems for extracting joule losses than the simple forced air circulation, for example using a coolant system or any other system combination (water circulation, fins or dissipators coupled to the magnetic circuit, etc.).

Claims (3)

1/ Régulateur de tension ferro-magnétique dans lequel on utilise les propriétés de la ferro-résonnance pour la saturation des circuits magnétiques du type comportant un circuit ferro-magnétique (1) associé à des bobinages, caractérisé en ce qu'il est combiné à un ensemble (3) permettant une extraction forcée des pertes thermiques dégagées tant par le circuit magnétique (1) que par les différents bobinages (2), ladite extraction forcée étant obtenue par action sur la surface externe des composants dudit régulateur.1 / Ferro-magnetic voltage regulator in which the properties of ferro-resonance are used for the saturation of magnetic circuits of the type comprising a ferro-magnetic circuit (1) associated with coils, characterized in that it is combined with an assembly (3) allowing forced extraction of the heat losses released both by the magnetic circuit (1) and by the various windings (2), said forced extraction being obtained by action on the external surface of the components of said regulator. 2/ Régulateur selon la revendication 1, caractérisé en ce que l'ensemble (3) permettant l'extraction des pertes thermiques est constitué par une circulation d'air forcée dirigée contre l'une des surfaces du régu­lateur et s'écoulant le long des autres surfaces.2 / Regulator according to claim 1, characterized in that the assembly (3) allowing the extraction of thermal losses is constituted by a forced air circulation directed against one of the surfaces of the regulator and flowing along the other surfaces. 3/ Régulateur selon la revendication 2, caractérisé en ce que l'ensemble (3) est constitué essentiellement d'un ventilateur (4) disposé en regard des bobines (2), ce ventilateur (4) étant monté sur un support (5) et son flux d'air étant canalisé par l'intermédiaire d'un boi­tier (6) qui s'étend depuis le support (5) jusqu'à pro­ximité des bobines (2) et ce, de telle sorte que le flux d'air agisse sur le maximum de surface du régulateur.3 / Regulator according to claim 2, characterized in that the assembly (3) consists essentially of a fan (4) disposed opposite the coils (2), this fan (4) being mounted on a support (5) and its air flow being channeled through a box (6) which extends from the support (5) to near the coils (2), so that the air flow acts on the maximum surface area of the regulator.
EP88420406A 1987-12-08 1988-12-02 Voltage regulator with a ferro-resonance filter with a cooling device Expired - Lifetime EP0320414B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR8717369 1987-12-08
FR8717369A FR2624303B1 (en) 1987-12-08 1987-12-08 TENSION REGULATOR WITH FERRO-RESONANT FILTER COMPRISING A COOLING SYSTEM

Publications (2)

Publication Number Publication Date
EP0320414A1 true EP0320414A1 (en) 1989-06-14
EP0320414B1 EP0320414B1 (en) 1993-08-04

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EP88420406A Expired - Lifetime EP0320414B1 (en) 1987-12-08 1988-12-02 Voltage regulator with a ferro-resonance filter with a cooling device

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US (1) US4884187A (en)
EP (1) EP0320414B1 (en)
DE (1) DE3882936T2 (en)
FR (1) FR2624303B1 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5204609A (en) * 1991-12-16 1993-04-20 Alisauski Daryl J Battery cooling apparatus
US5253613A (en) * 1992-04-30 1993-10-19 General Electric Company High power AC traction inverter cooling
US6128187A (en) * 1998-06-16 2000-10-03 Raytheon Company Cardcage for circuit cards
US6698079B1 (en) * 1998-06-16 2004-03-02 L-3 Communications Integrated Systems, L.P. Cardcage for circuit cards
CN104538152A (en) * 2015-01-01 2015-04-22 袁茂银 Oil type transformer and application thereof
CN110718364A (en) * 2019-08-31 2020-01-21 罗亨远 Forced air cooling dry-type transformer convenient to real-time supervision

Citations (3)

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Publication number Priority date Publication date Assignee Title
US3819965A (en) * 1972-11-20 1974-06-25 Gen Electric Cooling systems especially for dry type induction regulators
DE2417125A1 (en) * 1974-04-09 1975-10-23 Korotkow Stabilised A.C. power source - has L.C. network and power transformer for e.g. induction heating systems
US4032873A (en) * 1976-05-21 1977-06-28 The United States Of America As Represented By The United States Energy Research And Development Administration Flow directing means for air-cooled transformers

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US2424344A (en) * 1943-05-27 1947-07-22 Westinghouse Electric Corp Self-cooled rectifier
US2679024A (en) * 1952-10-28 1954-05-18 Harnischfeger Corp Power supply for direct current apparatus
US3790860A (en) * 1972-07-17 1974-02-05 Trygen Electronics Inc Power supply chassis assembly for electronic circuit with cooling
DE2417415A1 (en) * 1974-04-10 1975-10-23 Kabel & Lackdrahtfab Gmbh DEVICE AND METHOD FOR PRODUCING COPPER CONDUCTORS
IT1039770B (en) * 1974-07-26 1979-12-10 Piller Kg Anton ROTATING FREQUENCY CONVERTER
US4327398A (en) * 1979-09-04 1982-04-27 Product Technologies, Inc. Cooling system for automatic bowling pin spotter
US4665466A (en) * 1983-09-16 1987-05-12 Service Machine Company Low headroom ventilating apparatus for cooling an electrical enclosure

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3819965A (en) * 1972-11-20 1974-06-25 Gen Electric Cooling systems especially for dry type induction regulators
DE2417125A1 (en) * 1974-04-09 1975-10-23 Korotkow Stabilised A.C. power source - has L.C. network and power transformer for e.g. induction heating systems
US4032873A (en) * 1976-05-21 1977-06-28 The United States Of America As Represented By The United States Energy Research And Development Administration Flow directing means for air-cooled transformers

Also Published As

Publication number Publication date
DE3882936D1 (en) 1993-09-09
FR2624303B1 (en) 1990-08-17
FR2624303A1 (en) 1989-06-09
EP0320414B1 (en) 1993-08-04
US4884187A (en) 1989-11-28
DE3882936T2 (en) 1993-11-25

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