FR2565742A1 - Alternator for motor vehicle - Google Patents

Alternator for motor vehicle Download PDF

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Publication number
FR2565742A1
FR2565742A1 FR8408913A FR8408913A FR2565742A1 FR 2565742 A1 FR2565742 A1 FR 2565742A1 FR 8408913 A FR8408913 A FR 8408913A FR 8408913 A FR8408913 A FR 8408913A FR 2565742 A1 FR2565742 A1 FR 2565742A1
Authority
FR
France
Prior art keywords
alternator
regulator
voltage regulator
air
channels
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
FR8408913A
Other languages
French (fr)
Other versions
FR2565742B1 (en
Inventor
Paul Constantini
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.)
Ducellier et Cie
Original Assignee
Ducellier et Cie
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 Ducellier et Cie filed Critical Ducellier et Cie
Priority to FR8408913A priority Critical patent/FR2565742B1/en
Priority to ES1985295856U priority patent/ES295856Y/en
Priority to DE19853520435 priority patent/DE3520435A1/en
Publication of FR2565742A1 publication Critical patent/FR2565742A1/en
Application granted granted Critical
Publication of FR2565742B1 publication Critical patent/FR2565742B1/en
Expired legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
    • H02K19/365—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches with a voltage regulator
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/04—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for rectification
    • H02K11/049—Rectifiers associated with stationary parts, e.g. stator cores
    • H02K11/05—Rectifiers associated with casings, enclosures or brackets
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K19/00—Synchronous motors or generators
    • H02K19/16—Synchronous generators
    • H02K19/36—Structural association of synchronous generators with auxiliary electric devices influencing the characteristic of the generator or controlling the generator, e.g. with impedances or switches
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K9/00—Arrangements for cooling or ventilating
    • H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
    • H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
    • H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Motor Or Generator Frames (AREA)
  • Motor Or Generator Cooling System (AREA)
  • Synchronous Machinery (AREA)

Abstract

An electronic voltage regulator (3) of the hybrid type is insulated from the rear bearing by an intermediate piece (8). A contact group with carrier (5) has a protective cap (4) with many perforations for cooling the contacts. The ventilator (11) is of the centrifugal type, drawing the air from inside the generator and forcing it outwards by paddles (13). The housing of the regulator (3) is provided with ribs (7) on one side and separated by the channels (9) which form a suction opening with the protective cap (4) on the other side. When the generator (1) is operating, the cooling air circulates from the rear to the front (arrow F1) and the inside of the protective cap (4) can with advantage be made in spiral form. The cap (4) is held by screws and plates (14).

Description

ALTERNATEUR POUR VEHICULE AUTOMOBILE.ALTERNATOR FOR MOTOR VEHICLE.

La présente invention concerne un alternateur notamment por véhicule automobile du type comportant un régulateur électronique de tenson incorporé, réalisé suivant la technique des circuits hybrides
Un tel régulateur est généralement monté sur le palier arrière ae l alternateur, de ce fait il est soumis à dtimportantes augmenta
ions de température lors du fonctionnement du véhicule, il est donc indispensable de prévoir des moyens de refroidissement des éléments constitutifs du régulateur afin ae réduire la pente thermique de régulation celle-ci ayant une incidence sur les batteries du type dit
@@nt entretien" pour lesquelles les tolérances sur les tonsiens de charges admises sont plus réduites que celles des autres types de batteries équipant les véhicules automobiles.The present invention relates to an alternator, in particular for a motor vehicle, of the type comprising an incorporated electronic voltage regulator, produced using the hybrid circuit technique.
Such a regulator is generally mounted on the rear bearing of the alternator, therefore it is subject to significant increases.
temperature ions during the operation of the vehicle, it is therefore essential to provide means for cooling the constituent elements of the regulator in order to reduce the thermal regulation slope which has an impact on the batteries of the so-called type
@@ nt maintenance "for which the tolerances on the tonsiens of admitted loads are reduced than those of the other types of batteries equipping motor vehicles.

La présente invention a pour but de réduire au maximum l'éléva- tic de la température des régulateurs électroniques incorporés et concerne Q cet effet un alternateur, notamment pour véhicule automobile, du type comportant fixés sur son palier arrière principalement un régulateur électronique de tension réalisé suivant la technique des clrcuits hybrides, et un capot de protection des divers éléments qui assurent la mise en forme du courant créé par l'alternateur qui comporte des passages d'air et vers son palier avant un ventilateur qui assure la circulation forcée de l'air à travers des ouvertures ménagées de manière connue dans ledit s paliers et caractérisé en ce que le boltler du régulateur de tension comporte une pluralité d'ai- tettes dirigées vers l'extérieur séparées par des canaux qui débou chant dans une bouche d'aspiration de forme enveloppante dc. laforme extérieure du boitier du régulateur, réalisée dans le capot de manière à concourrir avec les ouvertures du palier arrière, laquelle bouche d'aspiraticn coopère avec les canaux afin de forcer ltair à circuler sur le régulateur de tenslon pour le refroidir. The object of the present invention is to reduce the temperature rise of the incorporated electronic regulators as much as possible and relates to this effect an alternator, in particular for a motor vehicle, of the type comprising fixed on its rear bearing mainly an electronic voltage regulator produced according to the technique of hybrid clrcuits, and a protective cover of the various elements which ensure the shaping of the current created by the alternator which comprises air passages and towards its bearing before a fan which ensures the forced circulation of the air through openings made in a known manner in said bearings and characterized in that the boltler of the tension regulator comprises a plurality of fins directed towards the outside separated by channels which lead out into a suction mouth of enveloping form dc. the outer shape of the regulator housing, produced in the cover so as to compete with the openings in the rear bearing, which suction mouth cooperates with the channels in order to force the air to circulate on the tenslon regulator to cool it.

La description qui va suivre en regard des schémas annexés fera mieux comprendre comtent l'invention peut être réalisée. The description which follows with reference to the appended diagrams will make it easier to understand how the invention can be produced.

La figure 1 représente un alternateur conforme à l'invention.  Figure 1 shows an alternator according to the invention.

La figure 2 représente en vue agrandie, suivant la flèche F2 de la figure 1. la coopération du régulateur de tension et du capot de protection.  Figure 2 shows in enlarged view, along arrow F2 of Figure 1. the cooperation of the voltage regulator and the protective cover.

La figure 3 est une vue à l'anglaise suivant la flèche F3 de la figure 2. FIG. 3 is an English view along arrow F3 in FIG. 2.

De façon connue l'alternateur représenté comporte un palier avant 10, comportant une pluralité d'ouvertures de ventilation, au niveau duquel est disposé un ventilateur Il entraîné en rotation par l'arbre 12 de l'alternateur et un palier arrière 2 comportant aussi des ouvertures, sur lequel sont fixés : un régulateur électronique de tension 3, du type à circuits hybrides et isolé du palier 2 au moyen d'un patin 8, un ensemble balais et porte balais 5 : et un capot 4 de protection de divers éléments de mise en forme du courant alternatif crée par l'al ternateur, capot mugi d'une pluralité de perforations au niveau desdits éléments de mise en forme du courant pour en assurer leur refroidissement par ventilation. In a known manner, the alternator shown comprises a front bearing 10, comprising a plurality of ventilation openings, at the level of which is arranged a fan II driven in rotation by the shaft 12 of the alternator and a rear bearing 2 also comprising openings, to which are fixed: an electronic voltage regulator 3, of the hybrid circuit type and isolated from the bearing 2 by means of a shoe 8, a brush and brush holder assembly 5: and a cover 4 for protecting various elements of shaping of the alternating current created by the alternator, cover provided with a plurality of perforations at the level of said current shaping elements to cool them by ventilation.

Le ventilateur 11 du type centrifuge est de conception à aspirer l'air provenant de l'intérieur de l'alternateur 1 et à l'expulser grâce à des pales 13 vers l'extérieur et assure une circulation forcée de l'air de l'arrière vers l'avant de l'alternateur à travers les ouvertures réalisées dans les paliers 2 et 10 et les perforations du capot 4. The fan 11 of the centrifugal type is designed to suck in the air coming from inside the alternator 1 and to expel it thanks to blades 13 towards the outside and ensures a forced circulation of the air from the rear to front of the alternator through the openings made in the bearings 2 and 10 and the perforations in the cover 4.

Conformément à l'invention et selon la figure 3, d'une part le boitier du régulateur 3 comporte une pluralité d'ailettes 7 dirigees vers l'extérieur de l'alternateur axialement; séparées par une pluralité de canaux 9, et d'aùtre p,art~-le-cåpot: omporte une:bouche d'aspiration 6 dont la forme correspond sensiblement à la forme de l'enveloppe extérieure du boitier du régulateur 3, ailettes 7 comprises. In accordance with the invention and according to FIG. 3, on the one hand the housing of the regulator 3 comprises a plurality of fins 7 directed towards the outside of the alternator axially; separated by a plurality of channels 9, and further p, art ~ -le-cåpot: omporte one: suction mouth 6 whose shape corresponds substantially to the shape of the outer casing of the regulator housing 3, fins 7 included.

La disposition du capot 4 par rapport au régulateur 3 est représentée a la figure 2 et est telle que les canaux 9 du boitier du régulateur débouchent dans la bouche d'aspiration 6. The arrangement of the cover 4 relative to the regulator 3 is shown in FIG. 2 and is such that the channels 9 of the regulator case open into the suction mouth 6.

b bouche dsaspiration 6 est alors disposée sur le palier 2 de façon à concourrir avec les ouvertures réalisées dans ledit, palier pour assurer la circulation de l'air. b suction mouth 6 is then placed on bearing 2 so as to compete with the openings made in said bearing to ensure the circulation of air.

Lors du fonctionnement de l'alternateur 1 la circulation de l'air de refroidissement du régulateur 3 s'effectue donc depuis l'arrière de l'alternateur vers l'avant en suivant la flèche.Fl representée sur les différentes figures, cette circulation est guidée et forcée sur le boitier du régulateur 5 par la combinaison des canaux 9, de a bouche d'aspiration 6, des ouvertures réalisées dans les pal ers 2 et 10, et le ventilateur 11.. During the operation of the alternator 1 the circulation of the cooling air of the regulator 3 therefore takes place from the rear of the alternator towards the front by following the arrow. Fl shown in the different figures, this circulation is guided and forced on the regulator unit 5 by the combination of channels 9, from the suction mouth 6, the openings made in the pal ers 2 and 10, and the fan 11 ..

L'intérieur du capot @ peut avantageusement être une volute de façon à permettre un meilleur guidage de l'air circulant à travers l'alternateur. The inside of the cover @ can advantageously be a scroll so as to allow better guidance of the air flowing through the alternator.

La fixation du capot 4 est réalisée de façon connue par des pattes 14 traverses par des vis de fixation, vissées dans le palier@, mais au niveau de la bouche d'aspiration 6 le palier ne comporte pas écessairement de matière puisqu'il comporte une pluralité d'ouvertures de ventilation, aussi @e capot dans ce cas comporte un doigt 15 qui pénètre dans un logement ménagé entre le palier 2 et le support isolant 8 du régulateur 3. The fixing of the cover 4 is carried out in a known manner by lugs 14 crosspieces by fixing screws, screwed into the bearing @, but at the level of the suction mouth 6 the bearing does not necessarily contain material since it comprises a plurality of ventilation openings, also the cover in this case includes a finger 15 which enters a housing formed between the bearing 2 and the insulating support 8 of the regulator 3.

Avec un tel dispositif la pente thermique de régulation de l'en- de l'aiternateur est très réduite et permet une meilleure fiabilité, et une meilleure utilisation des batteries de type dlt "sans entretien" qui équipent les véhicules automobiles.  With such a device, the thermal slope of regulation of the aerator is very reduced and allows better reliability, and better use of the dlt type batteries "maintenance free" which equip motor vehicles.

Claims (1)

REVENDICATIONCLAIM 1. - Alternateur notamment pour véhicule automobile, du type comportant fixés sur son palier arrière (2) principalement un régulateur électronique de tension (3) réalisé suivant la technique des circuits hybrides et un capot f4) de protection des divers élémente qui assu- ren4 la mise en forme du courant créé par l'alternateur (1! qui com- porte des passages d'air, et vers son palier avant (10) un ventilateur (11) qui assure la circulaticn forcée de l'air à travers des ouvertures ménagées de manière connue dans lesdits paliers (2) et (10), caractérisé en ce que le boitier du régulateur de tension (3) comporte une pluralité d'ailéttes (7) dirigées vers l'extérieur séparées par des canaux (9) qui débouchent dans une bouche d'aspiration- (6), de forme enveloppante de la forme extérieure du boitier du régulateur (3) réalisée dans le capot (4) de manière à concourrir avec les ouvertures du palier arrière (2) laquelle bouche d'aspiration (6) coopère avec les canaux (9) afin de forcer l'air à circuler sur le régulateur de tension (3) pour le refroidir.  1. - Alternator in particular for a motor vehicle, of the type comprising fixed on its rear bearing (2) mainly an electronic voltage regulator (3) produced according to the technique of hybrid circuits and a cover f4) for protection of the various elements which provide the shaping of the current created by the alternator (1! which includes air passages, and towards its front bearing (10) a fan (11) which ensures the forced circulation of air through openings formed in a known manner in said bearings (2) and (10), characterized in that the housing of the voltage regulator (3) comprises a plurality of fins (7) directed outwardly separated by channels (9) which open into a suction mouth- (6), of an enveloping shape of the outer shape of the regulator housing (3) produced in the cover (4) so as to coincide with the openings of the rear bearing (2) which mouth suction (6) cooperates with the channels (9) in order to force the air to circulate on the voltage regulator (3) to cool it.
FR8408913A 1984-06-07 1984-06-07 ALTERNATOR FOR MOTOR VEHICLE Expired FR2565742B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
FR8408913A FR2565742B1 (en) 1984-06-07 1984-06-07 ALTERNATOR FOR MOTOR VEHICLE
ES1985295856U ES295856Y (en) 1984-06-07 1985-06-04 ALTERNATOR PARTICULARLY FOR AUTOMOBILE VEHICLE
DE19853520435 DE3520435A1 (en) 1984-06-07 1985-06-07 Alternator, especially for motor vehicles

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR8408913A FR2565742B1 (en) 1984-06-07 1984-06-07 ALTERNATOR FOR MOTOR VEHICLE

Publications (2)

Publication Number Publication Date
FR2565742A1 true FR2565742A1 (en) 1985-12-13
FR2565742B1 FR2565742B1 (en) 1988-02-26

Family

ID=9304795

Family Applications (1)

Application Number Title Priority Date Filing Date
FR8408913A Expired FR2565742B1 (en) 1984-06-07 1984-06-07 ALTERNATOR FOR MOTOR VEHICLE

Country Status (3)

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DE (1) DE3520435A1 (en)
ES (1) ES295856Y (en)
FR (1) FR2565742B1 (en)

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538361A (en) * 1968-08-09 1970-11-03 Eltra Corp Alternator with bi-directional cooling means
US3538362A (en) * 1968-12-13 1970-11-03 Gen Motors Corp Diode-rectified alternating current generator having a built-in transistor voltage regulator
FR2441286A1 (en) * 1978-11-08 1980-06-06 Bosch Gmbh Robert HOOD FOR ELECTRIC MACHINES, ESPECIALLY FOR ALTERNATORS ON MOTOR VEHICLES
JPS56145759A (en) * 1980-04-15 1981-11-12 Nippon Denso Co Ltd Ac generator for regulator built-in vehicle
FR2486323A1 (en) * 1980-07-04 1982-01-08 Paris & Du Rhone Automobile alternator combined voltage regulator and brush mounting - has moulded insulating plate with embedded conductor strip providing electrical circuit
FR2513451A1 (en) * 1981-09-18 1983-03-25 Bosch Gmbh Robert EXTERNAL VENTILATION THREE-PHASE ALTERNATOR

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3538361A (en) * 1968-08-09 1970-11-03 Eltra Corp Alternator with bi-directional cooling means
US3538362A (en) * 1968-12-13 1970-11-03 Gen Motors Corp Diode-rectified alternating current generator having a built-in transistor voltage regulator
FR2441286A1 (en) * 1978-11-08 1980-06-06 Bosch Gmbh Robert HOOD FOR ELECTRIC MACHINES, ESPECIALLY FOR ALTERNATORS ON MOTOR VEHICLES
JPS56145759A (en) * 1980-04-15 1981-11-12 Nippon Denso Co Ltd Ac generator for regulator built-in vehicle
FR2486323A1 (en) * 1980-07-04 1982-01-08 Paris & Du Rhone Automobile alternator combined voltage regulator and brush mounting - has moulded insulating plate with embedded conductor strip providing electrical circuit
FR2513451A1 (en) * 1981-09-18 1983-03-25 Bosch Gmbh Robert EXTERNAL VENTILATION THREE-PHASE ALTERNATOR

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENTS ABSTRACTS OF JAPAN, vol. 6, no. 25(E-94)(903), 13 février 1982; & JP - A - 56 145 759 (NIPPON DENSO K.K.)(12-11-1981) *

Also Published As

Publication number Publication date
DE3520435A1 (en) 1985-12-12
FR2565742B1 (en) 1988-02-26
ES295856U (en) 1987-06-16
ES295856Y (en) 1987-12-16

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