EP3622550B1 - Kontaktschalter für anlasser mit abdichtunh , anlasser mit einem solchen kontaktschalter - Google Patents

Kontaktschalter für anlasser mit abdichtunh , anlasser mit einem solchen kontaktschalter Download PDF

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Publication number
EP3622550B1
EP3622550B1 EP18720304.7A EP18720304A EP3622550B1 EP 3622550 B1 EP3622550 B1 EP 3622550B1 EP 18720304 A EP18720304 A EP 18720304A EP 3622550 B1 EP3622550 B1 EP 3622550B1
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EP
European Patent Office
Prior art keywords
sealing
sealing device
starter
cavity
contactor
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.)
Active
Application number
EP18720304.7A
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English (en)
French (fr)
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EP3622550A1 (de
Inventor
Romain GUIGNOT
Nicolas Renard
Jean Sébastien Metral
Cyril BOUILLARD
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.)
Valeo Equipements Electriques Moteur SAS
Original Assignee
Valeo Equipements Electriques Moteur SAS
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Publication of EP3622550A1 publication Critical patent/EP3622550A1/de
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Publication of EP3622550B1 publication Critical patent/EP3622550B1/de
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Classifications

    • 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
    • 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
    • H01H50/16—Magnetic circuit arrangements
    • 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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02N—STARTING OF COMBUSTION ENGINES; STARTING AIDS FOR SUCH ENGINES, NOT OTHERWISE PROVIDED FOR
    • F02N11/00—Starting of engines by means of electric motors
    • F02N11/08—Circuits or control means specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • F02N2011/0874—Details of the switching means in starting circuits, e.g. relays or electronic switches characterised by said switch being an electronic switch
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal arrangements
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/16—Magnetic circuit arrangements
    • H01H50/18—Movable parts of magnetic circuits, e.g. armature
    • H01H50/20—Movable parts of magnetic circuits, e.g. armature movable inside coil and substantially lengthwise with respect to axis thereof; movable coaxially with respect to coil

Definitions

  • the field of the present invention is that of thermal engine starters for motor vehicles.
  • a starter contactor for a thermal engine in particular a motor vehicle, comprises a cylindrical housing in which is placed an annular coil which generates a magnetic field under the effect of an electric current passing through it.
  • the magnetic field thus created exerts a force on a cylindrical mobile core and at least partly magnetic.
  • the movable core is mounted in an interior space delimited by the cylindrical housing, so as to be able to slide there in an axial translation, driving with it a movable shaft, in order to close or open an electrical circuit connected to a power supply circuit. of the electric starter motor.
  • This opening/closing of the electrical circuit is carried out in a connection zone included in a cavity of the contactor, this cavity being separated from the interior space by a fixed core.
  • a disadvantage of these contactors lies in the vulnerability of their components to attacks from the external environment, and in particular to humidity.
  • water or splashes of water which manage to penetrate the contactor can cause electrical contact between one of the electrical terminals arranged in the cavity comprising the connection zone and the contactor housing.
  • This electrical contact can then create a short circuit of the battery to which this electrical terminal is electrically connected, this short circuit possibly being the cause of a thermal incident.
  • the document CN 106 328 443 describes such a contactor.
  • the present invention fits into this context and aims to propose a device making it possible to ensure a seal between the interior space of the contactor and the cavity of this contactor enclosing the connection zone.
  • the subject of the invention is therefore a starter contactor according to claim 1.
  • first sealing device This sealing device ensuring the seal between the interior space of the starter contactor and the cavity comprising the connection zone.
  • This contactor may have at least one second sealing device ensuring a seal between an electrical terminal of the connection zone and the cover closing the box.
  • This second sealing device can for example be arranged around the electrical terminal, at the level of the orifice through which this electrical terminal passes through the cover.
  • the contactor can have two second sealing devices respectively arranged around the periphery of each of the two electrical terminals, at the level of each of the orifices through which these electrical terminals pass through the cover.
  • this contactor can also include a third sealing device ensuring a seal between the contactor housing and the cover.
  • This third sealing device can for example be placed around the perimeter of the cover.
  • this contactor can also include a fourth sealing device ensuring a seal between the interior space of the starter contactor and the cavity comprising the connection zone.
  • This fourth sealing device can for example be placed between the fixed core and the housing.
  • the second, third and fourth sealing devices may be O-rings.
  • the second, third and fourth sealing devices can be shaped seals, for example rectangular or oblong.
  • the third and the fourth sealing device are formed from the same sealing device ensuring a seal between the fixed core and the cover.
  • This sealing device then makes it possible to isolate the cavity comprising the connection area of both the interior space and the exterior environment of the contactor.
  • This sealing device can be an O-ring or a shaped seal, for example rectangular or oblong.
  • This device can be housed in an axial recess of the cover and it can be compressed against a flat surface of axial normal of the fixed core. The axial depth of this recess is chosen to hold the device in position when the contactor is not in the mounted state. In particular, the device is inserted into the recess by at least 50% of its axial length in the mounted state.
  • connection zone is then completely sealed against the air which surrounds it, whether this is external to the contactor or present in the housing where the coil of the contactor extends. contactor.
  • the first sealing device is placed in the cavity which encloses the connection zone.
  • the contactor has a housing for integrating the first sealing device, provided on the fixed core.
  • the first sealing device is integral with the integration housing provided in the fixed core, this first sealing device being in sliding contact with the movable shaft.
  • the first sealing device is fixed with respect to the housing when the movable shaft translates.
  • the first sealing device is held in position in an integration housing via a support washer.
  • This support washer can for example have a conical section, seen in a section made along a plane passing through its central axis.
  • the movable shaft of the contactor according to the present invention may have at least a first stop against which the support washer is placed.
  • the first stop can come in one piece with the movable shaft.
  • the fixed core of the contactor according to the present invention can have at least a second stop against which the support washer is placed.
  • the first sealing device is placed in the cavity which encloses the connection zone.
  • the first sealing device may be a lip seal.
  • the first sealing device may be a self-lubricated seal.
  • the first sealing device may be an O-ring.
  • the sealing device ensuring the seal between the interior space of the starter contactor and the cavity comprising the connection zone may comprise a seal and a sealing ring.
  • the sealing ring can be placed between the seal and the movable shaft.
  • the seal may be an O-ring.
  • the seal can be in peroxidized EPDM, or in a material chosen from EPDM, NBR, FKM, ACM.
  • the seal ring may be a dynamic seal ring.
  • the ring can be made of PTFE.
  • the ring may include bronze and/or carbon (bronze-filled PTFE or carbon-filled PTFE).
  • the sealing ring prevents wear by rubbing which is observed during a back and forth movement of the shaft movable when a joint is directly in contact with the movable shaft. Scrubbing wear would cause the system to leak over time.
  • the sealing ring may have a cylindrical surface in sliding contact with the movable shaft. Facing the movable shaft, the ring may have a cavity which makes it possible to establish a different pressure force of the seal on the movable shaft depending on its direction of movement.
  • the sealing device comprises the gasket and the sealing ring as well as the support washer
  • the support washer can come into contact only with the sealing ring.
  • the seal is not axially tightened in the fixed core housing.
  • the support washer may have a flat surface facing the sealing device.
  • the second stop against which the support washer comes can be a notch in the fixed core.
  • the second stop can be located radially beyond the sealing device.
  • the sealing ring can be thin or thick.
  • the ring is thin if its radial dimension is at least twice less than that of the O-ring in the compressed state, that is to say in position in the contactor. It is thick if its radial dimension is substantially equal to that of the joint in the compressed state.
  • the sealing ring may include axial flanges for holding the seal in position.
  • the present invention also relates to a thermal engine starter comprising at least one contactor according to the present invention.
  • the axial, radial, exterior and interior designations refer to an axis X passing through its center the starter contactor according to the present invention.
  • the axial direction corresponds to the axis radial directions, the exterior or interior denominations are assessed in relation to the same axis X, the interior denomination corresponding to an element oriented towards the axis designating a radial distance from this X axis.
  • FIG. 1 schematically represents a starter 1 of a motor vehicle thermal engine comprising a contactor 2 according to the present invention.
  • the starter contactor 2 has a housing 3 extending along an axis the X axis.
  • the housing 3 has a first axial end 7 crossed by a first section 6a of the movable shaft 6 held by a movable core 8, and a second axial end 9 crossed by a second section 6b of the movable shaft 6, for its part held by a fixed core 10. As illustrated in the figure 1 , the first section 6a of the movable shaft 6 and the second section 6b of this movable shaft 6 are in contact with each other.
  • the first axial end 7 has a hole, not shown here, through which the movable core 8 can slide, carrying with it the first section 6a of the movable shaft 6, while the second axial end 9 is closed by a cover 11.
  • the movable shaft 6 passes through their centers and in this order, the fixed core 10, the movable core 8 and the hole in the first axial end 7 of the housing 3.
  • the fixed core 10 can for example have the general shape of a disc and it bears against an internal face of the housing 3, at the level of a shoulder of this housing 3 and against the cover 11.
  • the second axial end 9 has a cavity 12 delimited radially outwards by the cover 11 and axially on one side by the fixed core 10 and on the other side by the cover 11.
  • This cavity 12 houses a connection zone electrical in which extends at least one connection plate 13 and two electrical terminals 14. These terminals 14 extend on an internal face of the cover 11 and pass through it via two distinct orifices.
  • the starter 1 also comprises an electric motor 15, electrically connected to the contactor 2 via one of the terminals 14 of the contactor 2.
  • This electric motor 15 also has a pinion 16 movable in translation in a direction parallel to the axis pinion being intended to engage on a flywheel of the thermal engine.
  • a first electrical terminal 14 is connected to a battery 30 which delivers an electric current, for example at a voltage of 12V or 24V.
  • a second terminal 14 electric is in turn connected to the electric motor 15 of the starter.
  • the electrical terminals 14 thus participate in a power supply circuit of the starter 1 and when the electrical connection plate 13 is brought into contact with the electrical terminals 14, the power supply circuit of the starter 1 is closed and the current can flow, allowing the starting the thermal engine as described below.
  • Coil 5 generates a magnetic field under the effect of an electric current passing through it. Depending on the polarization of this coil 5, the magnetic field thus created exerts an attractive or repulsive force on the mobile core 8, which can then slide in an axial translation in the housing 3. When this mobile core 8 enters the housing 3, it exerts a translational force on the first section 6a of the movable shaft 6 which in turn drives the second section 6b of the movable shaft 6 such that the electrical connection plate 13 comes into contact with the electrical terminals 14. Once the electrical connection plate 13 is in contact with the terminals 14, the power supply circuit of the electric motor 15 is closed.
  • the first section 6a of the movable shaft 6 controls a fork 17 which makes it possible to position the pinion 16 of the electric motor 15 on a flywheel not shown here.
  • the connection plate 13 When the connection plate 13 is brought into contact by the translation movement of the movable shaft 6, the power supply circuit of the electric motor 15 is closed which allows this electric motor 15 to operate and thus to rotate the pinion 16. This rotation of the pinion 16 in turn allows the flywheel to be started and thus the vehicle's thermal engine to start.
  • the movable shaft 6 is described here with two sections 6a and 6b, but it is understood that this movable shaft can be in one piece from the fork 17 to the connection plate 13.
  • At least a first return spring for example of the helical type, is arranged to push back the second section 6b of the movable shaft 6 which in turn and simultaneously pushes the movable core 8 and the first section 6a when the coil 5 n is not powered.
  • the movable shaft 6, and more particularly its first section 6a compresses the first return spring by a movement of translation along the X axis as previously described.
  • this first return spring pushes the mobile core 8 out of the interior space 4 so that it returns to its original position.
  • the first section 6a of the movable shaft 6 can return to its original position, just like the second section 6b of this movable shaft 6, also pushed back by a second return spring shown on the figures 2 to 4 .
  • the first section 6a of the movable shaft 6 drives the pinion 16 of the electric motor 15 via the fork 17, this pinion 16 thus disengaging from the flywheel.
  • the second section 6b of the movable shaft 6 drives the electrical connection plate 13.
  • This electrical connection plate 13 is then no longer in contact with the electrical terminals 14, the power supply circuit of the electric motor 15 is thus open, which prevents the circulation of the electric current and causes this electric motor 15 to stop. .
  • the fixed core 10 forms a translation bearing with respect to the movable shaft 6, in particular its second section 6b.
  • the fixed core 10 is pierced with a hole in its center, a hole which allows the movable shaft 6 to slide. This hole forms a passage between the interior space 4 and the cavity 12.
  • FIG. 2 is a view in an axial section of a part of the contactor 2, at the level of the second axial end 9 of this contactor 2.
  • the cavity 12 presenting the connection zone and the interior space 4 of the contactor 2 starter.
  • the fixed core 10 the movable shaft 6 and more particularly the second section 6b of this movable shaft 6, as well as the housing 3 in which the coil 5 is housed.
  • this housing 2 is closed axially by the cover 11 in which two orifices are provided through which each of the electrical terminals 14 pass respectively.
  • This figure also illustrates the second return spring 18 allowing the movable shaft 6, and in particular the second section 6b of this movable shaft 6, to return to its initial position as described previously.
  • the contactor 2 has several sealing zones 19, 20, 21, 31.
  • a first sealing zone 19 is produced between the interior space 4 and the cavity 12 presenting the electrical connection zone.
  • a second sealing zone 20 and a third sealing zone 21 are produced between an environment external to the contactor 2 and the cavity 12 presenting the electrical connection zone.
  • a fourth sealing zone 31 is produced between the interior space 4 and the cavity 12 presenting the electrical connection zone at a location different from the first sealing zone 19. It is therefore understood that the first sealing zone 19 and the fourth sealing zone 31 are made between spaces internal to the contactor according to the invention, while the second sealing zone 20 and the third sealing zone 21 are made between the environment external to the contactor and an internal space to the contactor, in this case cavity 12.
  • the sealing zones at this cavity 12 make it possible to improve the longevity of the starter contactor.
  • the first sealing zone 19 is thus produced at the junction between the movable shaft 6 and the fixed core 10, as shown in the Figure 3 .
  • This first sealing zone 19 has a first sealing device 22 disposed between the second section 6b of the movable shaft 6 and the fixed core 10 and makes it possible to ensure a seal between the cavity 12, which encloses the connection zone electrical, and the interior space 4.
  • the first sealing device 22 makes it possible to ensure continuous insulation between the cavity 12 and the interior space 4, that is to say that these two zones are sealed relative to each other whatever the position of the movable shaft 6.
  • the first sealing device 22 is placed in the cavity 12 housing the electrical connection zone. In other words, this first sealing device 22 is disposed between the second section 6b of the movable shaft 6 and the fixed core 10 on the side of the cavity 12 and not on the side of the interior space 4. This position of the first sealing device 22 makes it possible not to impact the force of attraction or repulsion exerted on the mobile core 8 by the coil 5. Indeed, a shape which would be provided in the fixed core 10 on the space side interior 4 to receive a sealing device could disrupt the magnetic field generated by the coil 5 which loops back via fixed core 10.
  • the first sealing device 22 must be chosen in order to ensure a seal between two parts in translation relative to each other, in this case between the movable shaft 6 and the core fixed 10 of the contactor.
  • the first sealing device 22 can thus for example be a lip seal.
  • the second sealing zone 20 is carried out at least between one of the electrical terminals 14 and the cover 11 of the housing 3, advantageously between each of the electrical terminals 14 and the cover 11 of the housing 3.
  • two second sealing zones 20 each comprising a second sealing device 23 disposed between one of the electrical terminals 14 and the cover 11 of the housing 3 of the contactor 2, at the level of each of the orifices of the cover 11 through which pass these electrical terminals 14.
  • These second sealing devices 23 are made for example by O-rings extending over the entire periphery of each of the electrical terminals 14 or, according to an alternative embodiment, by shaped seals, for example rectangular or oblong.
  • the third sealing zone 21 comprises a third sealing device 24 disposed at a junction between the housing 3 and the cover 11 of this housing 3.
  • This third sealing device 24 can also, according to a variant of the invention, be produced by a seal of shape, for example rectangular or oblong, extending over the entire periphery of the cover 11.
  • the fourth sealing zone 31 comprises a fourth sealing device 32 disposed at a junction between the housing 3 and the fixed core 10.
  • This fourth sealing device 32 can be produced by an O-ring or, according to a variant of the invention, by a joint of shape, for example rectangular or oblong, extending over the entire periphery of the fixed core 10.
  • the third sealing device 24 and the fourth sealing device 32 can be combined into the same sealing device 33 disposed between the fixed core 10 and the cover 11.
  • This sealing device 33 then makes it possible to isolate the cavity 12 comprising the connection zone of both the interior space and the exterior environment of the contactor.
  • This sealing device 33 can be produced by an O-ring or, according to a variant of the invention, by a seal of shape, for example rectangular or oblong, extending on an internal face of the cover 11.
  • FIG. 3 illustrates a first embodiment of the first sealing zone 19. It can be seen that this first sealing zone 19 comprises the first sealing device 22.
  • an integration housing 25 of the first sealing device 22 is provided on the fixed core 10.
  • This first sealing device 22 is for example produced by a lip seal.
  • this integration housing 25 is produced in an internal wall of the fixed core 10, that is to say a wall of this fixed core 10 facing the movable shaft 6.
  • the lip seal(s ) is secured to this integration housing 25 as illustrated in Figure 3 and the lip(s) is/are in sliding contact against the movable shaft 6, thus ensuring sealing while allowing the axial translation movement of this movable shaft 6 relative to the fixed core 10.
  • this first sealing device can be produced by a self-lubricated seal.
  • the movable shaft 6 and the fixed core 10 can also respectively have a first and a second stop 26, 27. These two stops 26, 27 are made in opposite directions relative to each other and are configured to interpose a support washer 28 which presses on the first sealing device 22, thus ensuring the maintenance of this first sealing device 22 in the integration housing 25 provided in the fixed core 10.
  • This washer 28 is an attached part which thus authorizes the mounting of the first sealing device 22 in the integration housing 25, this part also blocking the first sealing device 22 so that it does not move during translation of the movable shaft 6.
  • the washer 28 also particularly blocks the lip of the lip seal forming an example of embodiment of the first sealing device 22.
  • the first and second stops 26, 27 have slopes complementary to the shape of the support washer 28.
  • This support washer 28 can, according to the first embodiment of the present invention illustrated in Figure 3 , present a conical section, seen in a section made along a plane passing through its central axis.
  • the first and second stops 26, 27 have conical slopes.
  • FIG. 4 illustrates, schematically, a second embodiment of the present invention.
  • an integration housing 29 of the first sealing device 22 is provided on the movable shaft 6, in particular on its external peripheral wall.
  • the first sealing device 22 is also a lip seal.
  • This lip seal is thus housed in the integration housing 29 provided on the movable shaft 6, and arranged so that its lip rubs on the fixed core 10, thus ensuring sealing despite the translation movement of this movable shaft 6 compared to the fixed core 10.
  • this second embodiment can also provide for the addition of a support washer making it possible to ensure effective maintenance of the first sealing device 22.
  • the movable shaft and the fixed core then respectively present the first and the second stop having shapes complementary to that of the support washer, as described previously.
  • THE figures 6 and 7 illustrate another example of a starter contactor 2 according to the present invention.
  • the example of the Figure 6 differs from the example in figure 2 in particular at the level of the third and fourth sealing devices and in the shape of the sealing device 22.
  • the contactor 2 comprises the same sealing device 33 which forms the third and fourth sealing devices to ensure a seal between the fixed core 10 and the cover 11.
  • the sealing device 33 is housed in an axial recess 40 of the cover 11 and it is compressed against a flat surface of axial normal 41 of the fixed core.
  • the sealing device 33 is here a seal of oblong section but can also be made in shape, for example rectangular or toroidal.
  • the sealing device 22 ensuring sealing between the interior space of the starter contactor and the cavity comprising the connection zone comprises a seal 44 and a sealing ring 45.
  • the sealing ring 45 is here a ring dynamic sealing device arranged between the seal 44 and the movable shaft 6.
  • the seal can be an O-ring in the free state.
  • the sealing ring may have a cylindrical surface in sliding contact with the movable shaft 6.
  • the sealing device 22 is integral with the integration housing 29 provided in the fixed core and the sealing device is held in this housing by a support washer 28.
  • the support washer 28 comes here only in contact with the sealing ring 45.
  • the seal 44 is not tightened axially in the housing 29 of the fixed core.
  • the support washer 28 has a flat surface facing the sealing device 22. The contact is plane between the support washer 28 and the sealing ring 45.
  • the support washer 28 is integral with the fixed core 10, the washer is for example crimped onto the fixed core.
  • the support washer does not rub on the movable shaft 6.
  • the sealing ring 45 has a cavity 47 facing the movable shaft 6 which makes it possible to establish a different pressure force of the seal 44 on the movable shaft depending on its direction of movement.
  • the sealing ring 45 is thin. Its radial dimension is at least twice less than that of the O-ring in the compressed state, that is to say in position in the contactor. In the second variant, that of figures 6 and 7 , the sealing ring 45 is thick. Its radial dimension is substantially equal to that of the seal 44 in the compressed state.
  • the sealing ring 45 includes axial flanges 48 for holding the seal 44 in position.
  • the present invention therefore makes it possible, thanks to a sealing device disposed between the movable shaft and the fixed core, to ensure sealing between the interior space of a contactor and the cavity of this contactor presenting the connection zone electric.
  • This electrical connection area is thus protected from dust and water which could enter this cavity.
  • This connection area being protected, the longevity of the starter contactor according to the present invention is improved.

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
  • Thermally Actuated Switches (AREA)
  • Motor Or Generator Frames (AREA)
  • Sealing With Elastic Sealing Lips (AREA)
  • Sealing Devices (AREA)

Claims (6)

  1. Kontaktschalter (2) für einen Anlasser (1), umfassend ein Gehäuse (3), das sich entlang einer Achse (X) erstreckt und zumindest einen Innenraum (4) begrenzt, mindestens eine in diesem Innenraum (4) untergebrachte Spule (5), mindestens einen festen Kern (10), durch den eine bewegliche Welle (6) verläuft, die in Richtung der Achse (X) verschiebbar ist, und mindestens einen Hohlraum (12), der einen elektrischen Verbindungsbereich umfasst, wobei der Hohlraum durch den festen Kern (10) vom Innenraum (4) getrennt ist, wobei der Kontaktschalter (2) des Anlassers (1) mindestens eine Abdichtungsvorrichtung (22) umfasst, die eine Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet, wobei:
    - der Kontaktschalter eine Aufnahme (25) für den Einbau der Abdichtungsvorrichtung (22) umfasst, die die Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet und auf dem festen Kern (10) angeordnet ist,
    - die Dichtungsvorrichtung (22), die die Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet, fest mit der im festen Kern (10) angeordneten Einbauaufnahme (25) verbunden ist, wobei diese Dichtungsvorrichtung (22) in Gleitkontakt mit der beweglichen Welle (6) steht,
    - dadurch gekennzeichnet, dass die Dichtungsvorrichtung (22), die die Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet, durch eine Stützscheibe (28) in einer Einbauaufnahme (25, 29) in Position gehalten wird,
    - dass die Dichtungsvorrichtung (22), die die Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet, eine Dichtung (44) und einen Dichtungsring (45) umfasst,
    - dass der Dichtungsring (45) zwischen der Dichtung (44) und dem festen Kern (10) angeordnet ist.
  2. Kontaktschalter (2) nach einem der vorangehenden Ansprüche, wobei die Dichtungsvorrichtung (22), die die Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet, in dem Hohlraum (12) angeordnet ist, der den Verbindungsbereich umschließt.
  3. Kontaktschalter (2) nach einem der vorangehenden Ansprüche, wobei die Dichtungsvorrichtung (22), die die Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet, eine Lippendichtung ist.
  4. Kontaktschalter (2) nach einem der vorangehenden Ansprüche, wobei die Dichtungsvorrichtung (22), die die Abdichtung zwischen dem Innenraum (4) des Kontaktschalters (2) des Anlassers (1) und dem Hohlraum (12), der den Verbindungsbereich umfasst, gewährleistet, eine selbstschmierende Dichtung ist.
  5. Kontaktschalter nach einem der vorangehenden Ansprüche, wobei die Stützscheibe (28) nur mit dem Dichtungsring (45) in Kontakt kommt.
  6. Anlasser (1) für einen Verbrennungsmotor, umfassend mindestens einen Kontaktschalter (2) nach einem der vorangehenden Ansprüche.
EP18720304.7A 2017-05-12 2018-05-04 Kontaktschalter für anlasser mit abdichtunh , anlasser mit einem solchen kontaktschalter Active EP3622550B1 (de)

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FR1754159A FR3066312B1 (fr) 2017-05-12 2017-05-12 Contacteur de demarreur comprenant un dispositif d'etancheite, et demarreur comprenant un tel contacteur
PCT/EP2018/061619 WO2018206469A1 (fr) 2017-05-12 2018-05-04 Contacteur de demarreur comprenant un dispositif d'etancheite, et demarreur comprenant un tel contacteur

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FR3098004B1 (fr) 2019-06-28 2022-07-22 Valeo Equip Electr Moteur Contacteur de demarreur

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EP3622550A1 (de) 2020-03-18
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US11295916B2 (en) 2022-04-05
MX2019013294A (es) 2020-07-27
US20210134549A1 (en) 2021-05-06
FR3066312B1 (fr) 2019-06-28
CN117542697A (zh) 2024-02-09
FR3066312A1 (fr) 2018-11-16
WO2018206469A1 (fr) 2018-11-15

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