EP0920045A1 - Contacteur de démarreur comportant une cloison d'étanchéité - Google Patents
Contacteur de démarreur comportant une cloison d'étanchéité Download PDFInfo
- Publication number
- EP0920045A1 EP0920045A1 EP98402162A EP98402162A EP0920045A1 EP 0920045 A1 EP0920045 A1 EP 0920045A1 EP 98402162 A EP98402162 A EP 98402162A EP 98402162 A EP98402162 A EP 98402162A EP 0920045 A1 EP0920045 A1 EP 0920045A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- contactor
- core
- chamber
- sealing
- partition
- 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
Links
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/023—Details concerning sealing, e.g. sealing casing with resin
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/026—Details concerning isolation between driving and switching circuit
Definitions
- the present invention relates to a contactor vehicle internal combustion engine starter automobile.
- the invention relates to a contactor for a motor vehicle starter of the type comprising a housing in which a core is arranged fixed magnetic and a coil in the center of which a core mobile moves axially to act on a rod mobile control, a rear section of which is guided by axial sliding in an axial hole of the fixed core and one of which front section carries a movable contact intended to establish a electrical contact between two fixed terminals which extend axially through a front cover which is crimped into the housing, of the type in which the fixed core delimits a chamber rear, in which the moving core moves, and a front chamber in which the movable contact is arranged and the terminals, and of the type in which the front face of the fixed core has a cylindrical central cavity into which is received an intermediate section of the control rod comprising an external radial collar on which a spring for retaining the movable contact is in axial support and the rear part is of shape complementary to that of the bottom of the cavity which extends through the rod guide hole.
- This contactor The role of this contactor is to establish contact between the two fixed terminals via the mobile contact. However, it may happen that this function does not can no longer be achieved.
- the starter contactor does not have always a good water tightness and, when the vehicle rolls on wet pavement, splashing water can get inside the contactor. Furthermore, being given the position of the starter switch near the engine, the temperature inside the starter is relatively large, generally close to 90 ° C, La combination of heat and humidity in the contactor has several drawbacks.
- the pieces which are made of copper are covered with a fine black oxide film which has the property of being insulating and which, therefore, prevents electrical contact between different rooms.
- the starter switch is then unusable.
- Humidity also has the effect of oxidizing the other metal parts such as for example springs, washers, magnetic circuits, etc. Salts from oxidation of these parts can hinder and even block displacements of the movable contact and its rod command which can no longer properly ensure its function.
- Water penetration into the contactor can take place in different places. The majority of penetrations are made by the crimping area of the front cover to the front end of the switch housing. However others water droplets can also get inside the contactor through the rear chamber of the movable core, in particularly thanks to the play that exists between the mobile core and the internal walls of the contactor. Then the water particles enter the front chamber of the contactor along the control rod by the radial clearance that exists between the control rod command and the fixed core.
- the invention offers a starter switch in which are arranged a fixed magnetic core and a coil in the center of which a nucleus moves to act on a rod, a section of which carries a contact intended to establish contact between two terminals, of the type in which the fixed core delimits two chambers and of the type in which the fixed core has a cavity in which a section of the rod is received, characterized in that it has a sealing partition between the two chambers with a transverse orientation plate radial, in axial abutment against the front face of the fixed core, which is extended at its periphery by an oriented axial flange forward perpendicular to the cooperating plate sealingly with a rear face of the front cover of the contactor, and comprising a tubular central part which extends axially backwards whose shape is complementary to that of the central cavity of the fixed core with which it cooperates tightly.
- FIG. 1 represents a starter contactor 10 (not shown) of a vehicle internal combustion engine automobile.
- This contactor 10 comprises a metal housing 12 in which coils 14 are arranged. These coils 14 control the axial displacement of a movable core 16 of which one end is connected to a pivoting lever (not shown) which acts on the starter launcher.
- the other front end 18 of the movable core 16 acts on a control rod 20 by thrust through a hole 22 of a fixed magnetic core 24 in which the rear part of the rod 20 is mounted sliding axially.
- the control rod 20 can therefore be pushed axially towards the front by its rear section 26 and it carries, on its opposite front section 28, a movable contact 30, mounted sliding on the control rod 20.
- the movable contact 30 is substantially in the form of rectangular plate and it extends transversely to cooperate with two electrical terminals 32 and 34 of the circuit power and make electrical contact between they.
- the two electrical terminals 32 and 34 are fixed and they are carried by a front cover 36 whose annular edge rear is crimped into a front part 38 of the housing 12 of the contactor 10.
- the contactor 10 also includes a return spring 35, arranged inside the front cover 36, substantially between contact terminals 32 and 34. This return spring 35 is used to push back the control rod 20 and therefore the movable contact 30, when the electrical contact between the terminals 32 and 34 must be interrupted, and when the control 20 is no longer pushed forward by the core mobile 16.
- the control rod 20 also includes a section intermediate on which an external radial collar is arranged 27.
- This radial collar 27 has a front radial face 29 on which a retaining spring 31 is supported to urge the movable contact 30 towards the front of the control rod 20.
- the radial collar 27 also has a frustoconical rear face 33 which is inclined towards the axis of the rod.
- the fixed core 24 delimits two chambers: a chamber front 40 in which are arranged the movable contact 30 and the electrical terminals 32 and 34, and a rear chamber 42 in which the movable core 16 moves axially.
- the front face of the fixed core 24 has a cavity axial cylindrical unit 44, the bottom of which opens into the hole 22 for passage of the control rod 20.
- the hole 22 has a diameter smaller than that of the central cavity 44, and the connection between the hole 22 and the cavity 44 is ensured by a frustoconical part 46 of the cavity 44 which is inclined backwards and towards the X-X axis of contactor 10.
- the radial collar 27 of the control rod 20 is in rear axial support on the part inclined 46 of the central cavity 44 of the fixed core 24, by its complementary frustoconical part 33.
- the inclinations of the inclined part 46 and the rear face of the radial collar 27 are substantially the same so that the two elements are in mutual contact over the largest possible area.
- the contactor 10 has an internal sealing partition 48.
- this sealing partition 48 comprises a transverse plate 50 of radial orientation with respect to the axis X-X of contactor 10.
- the transverse plate 50 is extended at its periphery by an axial flange 52, oriented towards the front perpendicular to the plate 50, and it comprises a tubular central portion 54 which extends axially towards the back.
- a rear end portion 56 of the central portion tubular 54 is inclined towards the axis, to define a section of general frustoconical shape.
- the partition seal 48 is placed in the contactor 10 between the cover front 36 and the fixed core 24.
- the axial flange 52 of the partition 48 is arranged in a housing 58 on the rear face of the front cover 36 of the switch 10.
- the sealing partition 48 is fixed to the front cover 36 so definitive by bonding, welding or crimping to prevent any intrusion of water into the chamber 40 of the mobile contact and achieve an external radial seal.
- the length of the collar 52 makes it possible to increase the contact surface between the flange 52 and the side walls of the housing 58, which further promotes sealing between the chambers 40 and 42 and / or between chamber 40 of the contact mobile 30 and outside of contactor 10.
- the partition seal 48 can be force fitted into housing 58.
- the axial length of the flange 52 can be greater than the depth of the housing 58 of the front cover 36, and the front end 53 of the collar is slightly crushed against the bottom of the housing 58, during the force-fitting of the sealing partition 48, thus effecting the sealing outer radial between the two chambers 40 and 42.
- this front end 53 may have a protruding crush lip, which will crash more easily on the bottom of the housing 58, while ensuring the seal between the two chambers 40 and 42.
- This crushing lip can also be arranged in the bottom of the housing 58, for sealing between the chambers of the same way, by crushing the lip when setting by force of the sealing partition 48.
- the sealing partition 48 is arranged transversely in the chamber 40 of the movable contact 30, in contact with the front face of the fixed core 24.
- the tubular part 54 of the sealing partition 48 is in contact with the walls of the cylindrical cavity 44 of the core fixed 24.
- the inclined rear end part 56 of the bulkhead is in contact with the inclined part 46 of the cavity 44 of the fixed core 24 with which it cooperates tightly.
- the radial collar 27 of the control rod is therefore in back support, no longer as was known, on the fixed core 24, but on the inclined rear part 56 of the sealing partition 48 by its frustoconical part 33.
- the internal radial seal between the chamber 40 of the movable contact 30 and the chamber 42 of the movable core 16 is provided by the inclined rear face 33 of the collar 27 of the rod control which is supported on the end part 56 inclined rear of the partition 48. Indeed, the spring 35 of control rod 20 reminder firmly hold it in the retracted position, and therefore, the radial collar 27 is resting on the partition 48 causing sealing.
- the rear part 56 has a flexible annular lip, the internal diameter of which is less than the external diameter of a radial collar 60 which extends the radial collar 27 of the control rod 20 towards the back.
- the internal radial seal is thus improved, in particularly during movements of the control rod 20.
- the radial collar 60 spreads elastically the flexible annular lip of the partition sealing, preventing any particle of water from entering inside the chamber 40 of the contactor.
- the sealing partition 48 is made of material plastic, this material having various advantages such as that a low cost price, a low weight for the partition, and it can undergo minor deformations without gravity and particular allowing a force insertion, the deformation of the material providing sealing.
- the sealing partition 48 is made of the same material as the front cover 36, so avoid problems caused by differences in expansion which can take place and which can cause deformations through which water can infiltrate.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Push-Button Switches (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Motor Or Generator Frames (AREA)
Abstract
Description
- la collerette avant de la cloison est montée à force dans un logement complémentaire du capot avant du contacteur pour assurer l'étanchéité radiale extérieure entre la chambre du contact mobile et la chambre du noyau mobile ;
- la longueur axiale de la collerette de la cloison d'étanchéité est supérieure à la profondeur du logement, afin de réaliser l'étanchéité par écrasement du bord avant de la collerette ;
- la partie tubulaire de la cloison d'étanchéité possède une extrémité arrière en forme de tronc de cône, complémentaire de la forme de la cavité centrale du noyau fixe, sur laquelle le collet de la tige de commande est en appui axial pour assurer l'étanchéité radiale intérieure entre la chambre du contact mobile et la chambre du noyau mobile ;
- l'extrémité arrière de la partie tubulaire de la cloison d'étanchéité comporte une lèvre annulaire dont le diamètre interne est inférieur au diamètre externe d'un collet radial de la tige de commande qui prolonge l'extrémité arrière du collet pour réaliser l'étanchéité entre les deux chambres ;
- la cloison d'étanchéité est moulée en matière plastique;
- la cloison d'étanchéité est réalisée dans la même matière plastique que le capot avant du contacteur pour éviter des défauts dus à la dilatation.
- la figure 1 est une vue en coupe longitudinale d'un contacteur de démarreur avec des moyens d'étanchéité conformes aux enseignements de l'invention ;
- la figure 2 est une vue en section longitudinale de la cloison d'étanchéité ;
- la figure 3 est une vue de face de la cloison d'étanchéité selon la flèche F3 de la figure 1; et
- la figure 4 est une vue partielle en section de la partie centrale tubulaire de la cloison, traversée par la tige de commande.
Claims (7)
- Contacteur (10) pour un démarreur de véhicule automobile du type comportant un boítier (12) dans lequel sont agencés un noyau magnétique fixe (24) et un bobinage (14) au centre duquel un noyau mobile (16) se déplace axialement pour agir sur une tige de commande (20) mobile, dont un tronçon arrière est guidé en coulissement axial dans un trou axial (22) du noyau fixe (24) et dont un tronçon avant (28) porte un contact mobile (30) destiné à établir un contact électrique entre deux bornes fixes (32, 34) qui s'étendent axialement à travers un capot avant (36) qui est serti dans le boítier (12), du type dans lequel le noyau fixe (24) délimite une chambre arrière (42), dans laquelle se déplace le noyau mobile (16), et une chambre avant (40) dans laquelle sont agencés le contact mobile (30) et les bornes (32, 34), et du type dans lequel la face avant du noyau fixe (24) comporte une cavité centrale cylindrique (44) dans laquelle est reçu un tronçon intermédiaire de la tige de commande (20) comportant un collet radial extérieur (27) sur lequel un ressort de maintien du contact mobile est en appui axial et dont la partie arrière est de forme complémentaire de celle du fond de la cavité (44) qui se prolonge par le trou de guidage (22) de la tige (20), caractérisé en ce qu'il comporte une cloison d'étanchéité (48) entre les deux chambres (40, 42) comportant une plaque transversale (50) d'orientation radiale, en appui axial contre la face avant du noyau fixe (24), qui se prolonge à sa périphérie par une collerette axiale (52) orientée vers l'avant perpendiculairement à la plaque (50) qui coopère de manière étanche avec une face arrière du capot avant (36) du contacteur (10), et comportant une partie centrale tubulaire (54) qui s'étend axialement vers l'arrière dont la forme est complémentaire de celle de la cavité centrale (44) du noyau fixe (24) avec laquelle elle coopère de manière étanche.
- Contacteur (10) selon la revendication 1, caractérisé en ce que la collerette avant (52) de la cloison (48) est montée à force dans un logement complémentaire (58) du capot avant (36) du contacteur (10) pour assurer l'étanchéité radiale extérieure entre la chambre (40) du contact mobile (30) et la chambre (42) du noyau mobile (16).
- Contacteur (10) selon la revendication 2, caractérisé en ce que la longueur axiale de la collerette (52) de la cloison d'étanchéité (48) est supérieure à la profondeur du logement (58), afin de réaliser l'étanchéité par écrasement du bord avant (53) de la collerette (52).
- Contacteur (10) selon l'une quelconque des revendications 1 à 3, caractérisé en ce que la partie tubulaire (54) de la cloison d'étanchéité (48) possède une extrémité arrière (56) en forme de tronc de cône, complémentaire de la forme de la cavité centrale (44) du noyau fixe (24), sur laquelle le collet (27) de la tige de commande (20) est en appui axial pour assurer l'étanchéité radiale intérieure entre la chambre (40) du contact mobile (30) et la chambre (42) du noyau mobile (16).
- Contacteur (10) selon la revendication 4, caractérisé en ce que l'extrémité arrière (56) de la partie tubulaire (54) de la cloison d'étanchéité (48) comporte une lèvre annulaire dont le diamètre interne est inférieur au diamètre externe d'un collet radial (60) de la tige de commande (20) qui prolonge l'extrémité arrière du collet (27) pour réaliser l'étanchéité entre les deux chambres (40, 42).
- Contacteur (10) selon l'une quelconque des revendications précédentes, caractérisé en ce que la cloison d'étanchéité (48) est moulée en matière plastique.
- Contacteur (10) selon la revendication 6, caractérisé en ce que la cloison d'étanchéité (48) est réalisée dans la même matière plastique que le capot avant (36) du contacteur (10) pour éviter des défauts dus à la dilatation.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR9711278A FR2768259B1 (fr) | 1997-09-09 | 1997-09-09 | Contacteur de demarreur comportant une cloison d'etancheite |
FR9711278 | 1997-09-09 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0920045A1 true EP0920045A1 (fr) | 1999-06-02 |
EP0920045B1 EP0920045B1 (fr) | 2004-03-17 |
Family
ID=9510961
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP98402162A Expired - Lifetime EP0920045B1 (fr) | 1997-09-09 | 1998-09-01 | Contacteur de démarreur comportant une cloison d'étanchéité |
Country Status (6)
Country | Link |
---|---|
US (1) | US5973581A (fr) |
EP (1) | EP0920045B1 (fr) |
BR (1) | BR9803376B1 (fr) |
DE (1) | DE69822407T2 (fr) |
ES (1) | ES2218784T3 (fr) |
FR (1) | FR2768259B1 (fr) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105378878A (zh) * | 2013-05-31 | 2016-03-02 | 泰连德国有限公司 | 开关触头容腔密封件 |
Families Citing this family (19)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4031889B2 (ja) * | 1999-07-29 | 2008-01-09 | 株式会社日立製作所 | スタータ用マグネチックスイッチ |
JP3478211B2 (ja) * | 1999-11-24 | 2003-12-15 | 株式会社デンソー | マグネットスイッチ |
US7733659B2 (en) * | 2006-08-18 | 2010-06-08 | Delphi Technologies, Inc. | Lightweight audio system for automotive applications and method |
US7548146B2 (en) * | 2006-12-27 | 2009-06-16 | Tyco Electronics Corporation | Power relay |
DE102007014764A1 (de) * | 2007-03-28 | 2008-06-12 | Robert Bosch Gmbh | Einrückrelais für Starter |
JP5573250B2 (ja) * | 2010-03-09 | 2014-08-20 | オムロン株式会社 | 封止接点装置 |
EP2637190A4 (fr) | 2010-11-01 | 2014-11-19 | Ngk Spark Plug Co | Relais |
CN103943415B (zh) * | 2013-01-23 | 2017-06-23 | 博世汽车部件(长沙)有限公司 | 电磁开关及车辆起动机 |
DE102013210194A1 (de) * | 2013-05-31 | 2014-12-04 | Tyco Electronics Amp Gmbh | Anordnung für ein elektrisches Schaltelement mit einer Dichtungsanordnung |
FR3011675B1 (fr) * | 2013-10-04 | 2017-05-26 | Valeo Equip Electr Moteur | Capot de contacteur electromagnetique de demarreur de vehicule automobile, contacteur electromagnetique et demarreur correspondants |
FR3011676B1 (fr) * | 2013-10-04 | 2015-11-13 | Valeo Equip Electr Moteur | Contacteur electromagnetique de demarreur de vehicule automobile et demarreur correspondant |
EP2963667B1 (fr) * | 2014-07-03 | 2017-05-17 | Valeo Equipements Electriques Moteur | Couvercle d'un contacteur de démarreurs de véhicule automobile |
US20180313460A1 (en) * | 2015-11-11 | 2018-11-01 | Koganei Corporation | Opening and closing valve |
FR3066314A1 (fr) * | 2017-05-12 | 2018-11-16 | Valeo Equipements Electriques Moteur | Contacteur de demarreur dote d'un moyen d'etancheite et demarreur equipe d'un tel contacteur |
FR3066313A1 (fr) * | 2017-05-12 | 2018-11-16 | Valeo Equipements Electriques Moteur | Contacteur de demarreur dote d'un moyen d'etancheite perfectionne et demarreur equipe d'un tel contacteur |
FR3066312B1 (fr) * | 2017-05-12 | 2019-06-28 | Valeo Equipements Electriques Moteur | Contacteur de demarreur comprenant un dispositif d'etancheite, et demarreur comprenant un tel contacteur |
JP7142220B2 (ja) * | 2018-11-13 | 2022-09-27 | パナソニックIpマネジメント株式会社 | 接点装置及び電磁継電器 |
JP7142219B2 (ja) * | 2018-11-13 | 2022-09-27 | パナソニックIpマネジメント株式会社 | 接点装置及び電磁継電器 |
FR3090189A1 (fr) * | 2018-12-17 | 2020-06-19 | Valeo Equipements Electriques Moteur | Contacteur pour un demarreur d’un moteur thermique |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4983941A (en) * | 1988-11-24 | 1991-01-08 | Mitsubishi Denki Kabushiki Kaisha | Electromagnetically operated switch |
DE19631448A1 (de) * | 1995-08-14 | 1997-02-20 | Valeo Equip Electr Moteur | Anlasserrelais für einen Kraftfahrzeuganlasser mit verbesserten Abdichtungsmitteln und mit einem solchen Anlasserrelais ausgerüsteter Anlasser |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5103107A (en) * | 1989-12-05 | 1992-04-07 | Mitsubishi Denki K.K. | Starter motor |
-
1997
- 1997-09-09 FR FR9711278A patent/FR2768259B1/fr not_active Expired - Fee Related
-
1998
- 1998-09-01 ES ES98402162T patent/ES2218784T3/es not_active Expired - Lifetime
- 1998-09-01 DE DE69822407T patent/DE69822407T2/de not_active Expired - Lifetime
- 1998-09-01 EP EP98402162A patent/EP0920045B1/fr not_active Expired - Lifetime
- 1998-09-03 BR BRPI9803376-0A patent/BR9803376B1/pt not_active IP Right Cessation
- 1998-09-08 US US09/149,394 patent/US5973581A/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4983941A (en) * | 1988-11-24 | 1991-01-08 | Mitsubishi Denki Kabushiki Kaisha | Electromagnetically operated switch |
DE19631448A1 (de) * | 1995-08-14 | 1997-02-20 | Valeo Equip Electr Moteur | Anlasserrelais für einen Kraftfahrzeuganlasser mit verbesserten Abdichtungsmitteln und mit einem solchen Anlasserrelais ausgerüsteter Anlasser |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN105378878A (zh) * | 2013-05-31 | 2016-03-02 | 泰连德国有限公司 | 开关触头容腔密封件 |
CN105378878B (zh) * | 2013-05-31 | 2018-09-11 | 泰连德国有限公司 | 开关触头容腔密封件 |
Also Published As
Publication number | Publication date |
---|---|
BR9803376B1 (pt) | 2010-07-13 |
DE69822407D1 (de) | 2004-04-22 |
ES2218784T3 (es) | 2004-11-16 |
FR2768259B1 (fr) | 1999-10-08 |
US5973581A (en) | 1999-10-26 |
FR2768259A1 (fr) | 1999-03-12 |
BR9803376A (pt) | 1999-11-03 |
EP0920045B1 (fr) | 2004-03-17 |
DE69822407T2 (de) | 2005-03-03 |
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