EP1128410A2 - Contact de commutation pour un démarreur - Google Patents

Contact de commutation pour un démarreur Download PDF

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Publication number
EP1128410A2
EP1128410A2 EP01103761A EP01103761A EP1128410A2 EP 1128410 A2 EP1128410 A2 EP 1128410A2 EP 01103761 A EP01103761 A EP 01103761A EP 01103761 A EP01103761 A EP 01103761A EP 1128410 A2 EP1128410 A2 EP 1128410A2
Authority
EP
European Patent Office
Prior art keywords
contact
contact element
switching
counter
resistance
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.)
Withdrawn
Application number
EP01103761A
Other languages
German (de)
English (en)
Other versions
EP1128410A3 (fr
Inventor
Karl-Otto Schmidt
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.)
Robert Bosch GmbH
Original Assignee
Robert Bosch GmbH
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 Robert Bosch GmbH filed Critical Robert Bosch GmbH
Publication of EP1128410A2 publication Critical patent/EP1128410A2/fr
Publication of EP1128410A3 publication Critical patent/EP1128410A3/fr
Withdrawn legal-status Critical Current

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Classifications

    • 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
    • F02N15/00—Other power-operated starting apparatus; Component parts, details, or accessories, not provided for in, or of interest apart from groups F02N5/00 - F02N13/00
    • F02N15/02—Gearing between starting-engines and started engines; Engagement or disengagement thereof
    • F02N15/04—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears
    • F02N15/06—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement
    • F02N15/067—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the toothed gears being moved by axial displacement the starter comprising an electro-magnetically actuated lever
    • 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 specially adapted for starting of engines
    • F02N11/087—Details of the switching means in starting circuits, e.g. relays or electronic switches
    • 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
    • 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 specially adapted for starting of engines
    • F02N11/0851—Circuits specially adapted for starting of engines characterised by means for controlling the engagement or disengagement between engine and starter, e.g. meshing of pinion and engine gear
    • 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
    • F02N2300/00—Control related aspects of engine starting
    • F02N2300/10—Control related aspects of engine starting characterised by the control output, i.e. means or parameters used as a control output or target
    • F02N2300/102—Control of the starter motor speed; Control of the engine speed during cranking
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/541—Auxiliary contact devices
    • H01H50/543—Auxiliary switch inserting resistor during closure of contactor

Definitions

  • the invention relates to a switch contact for a Starter motor with the in the preamble of claim 1 mentioned features.
  • the switch contact according to the invention for the starter motor can be a multi-stage for the first time Switching can be realized without an additional Interconnection effort is necessary.
  • the Switch contact can be designed very compact, so that its space requirement is minimal. In addition can significantly reduces the risk of contact welding become.
  • the first contact element is in an open Switch position and / or at least at the beginning the first switch position in a rest position Holding force applied.
  • This can preferably be such that the first Contact element from a counter contact element facing contact body and a spring element, which is the first contact element in the relaxed Condition moves to the rest position.
  • the first contact element in one Insulated bushing with an end stop for the rest position by one to the counter contact element facing inner edge of the insulating sleeve becomes.
  • the first contact element or the contact body in the form of a carbon brush realize is further preferred. If a spring element is provided, then this preferably electrically conductive and / or A strand is assigned to the spring element, the one electrical connection enabled. Furthermore it is advantageous to the second contact element made of copper shape to a very high electrical conductivity to grant.
  • the switch contact can be designed as a wedge contact.
  • the mating contact element is a wedge and the first contact element has a complementary one conical contact shape. The selected geometry enables a self-cleaning effect of the contact surfaces.
  • the Integrate switch contact that starts from the open switch position simultaneously or on top of each other are contactable below. That's the way it is for example conceivable, the first contact element a resistance carbon and a subsequently contacted Another contact element made of high-current coal shape (double carbon contact).
  • the main stream is in of such an embodiment only activated, if the mating contact element on the second contact element, which is generally the best has electrical conductivity. All in all can be by such an embodiment of the Switching contact several closed switching positions, in which a current flows - in the exemplary embodiment three closed switch positions - realize and so a starting process can be essential be made more comfortable.
  • FIG. 1 shows a schematic sectional view a first embodiment of a switch contact 10, as used in a starter motor M of internal combustion engines Can be found.
  • the switch contact 10 consists of a counter-contact element 12, a first contact element 14 and a second contact element 16.
  • the individual components 12, 14, 16 are shiftable relative to each other, that is, in this case is done by appropriate mechanics a displacement of the mating contact element 12 in Direction of the two contact elements 14, 16 allows. If the mating contact element 12 to the Contact elements 14 and / or 16 is present, so a Circuit closed and a flowing current can enable the operation of the starter motor M.
  • the first contact element 14 is according to the present Embodiment executed in two parts and consists of a contact body 18 on one Counter-contact element 12 facing side and one Spring element 20 on the side facing away from it.
  • the first contact element 18 is also located in FIG an insulating bushing 22.
  • the insulating bushing 22 has a total of three functions. She leads the first Contact element 14 and insulated between them two contact elements 14 and 16. In addition it forms an end stop 24 for the first Contact element 14 by one to the counter contact element 12 facing inner edge of the insulating bush 22 is provided.
  • the switch body 18 of the first contact element 14 consists of a conventional carbon brush material. This reduces the risk of contact welding during a switching operation.
  • the spring element 20 must be sufficiently electrically conductive to enable an electrical connection. With insufficient thermal strength of the spring element 20 or to low electrical conductivity can the spring element 20 a strand can be assigned.
  • the second contact element 16 is based on a very good electrical conductor, for example copper, shaped. Accordingly, an electrical resistance of the second contact element 16 much less than an electrical resistance of the first contact element 14.
  • a sequence of the switching process can be the executions a) to f) of FIG. 2.
  • Step a) In a open switch position are the counter contact element 12 and the contact elements 14, 16 so far spaced from each other that no current can flow (Step a)).
  • the contact body 18 of the contact element 14 is such by the spring element 20 force applied to the end stop 24 is present.
  • step b) is now the counter-contact element 12 with one here Mechanics not shown in the direction of the first Move contact element 14. In dependence of the applied voltage and the selected materials arises when falling below a certain A switch-on arc 26 at a distance.
  • step c When the mating contact element 12 on the first contact element 14 is present (step c)), a first closed switch position assumed.
  • the first Contact element 14 then represents a resistor RV and the resulting relatively low current flow enables a comfortable, safe engagement of a Starter pinion in an engine ring gear.
  • step d Since the electrical resistance of the second contact element 16 is much less than the RV resistance first contact element 14, almost takes place entire power line through this contact and that first contact element 14 is almost de-energized.
  • the starter motor M can now flow the main current a maximum moment on his starter pinion and subsequently transferred to the motor sprocket.
  • step e) the counter contact element 12 again in the opposite direction move, a restoring force of the spring element 20 can be exploited.
  • Mating contact element 12 still on the first contact element 14 this in turn represents the resistance RV represents and the resulting, relatively small Current flow can be started with the starter motor M feasible switching stages can be used.
  • An im Step f) arcing arises with increasing distance of the counter-contact element 12 and of the first contact element 14 deleted and ultimately then the switch contact 10 is again in the open switch position of step a).
  • FIG. 3 is a second alternative embodiment of the switching contact 10 in three different Switch positions. On the presentation the wiring is for reasons of clarity been waived.
  • the switch contact 10 is a wedge contact molded.
  • the counter contact element 12 has a wedge and the first contact element 14 a complementary conical contact form in one Area 28.
  • the switch contact 10 On the left side of Figure 3 is the switch contact 10 shown in the open switch position. Subsequently, it is closed in a first Switch position and on the right side then in a second closed switching position shown. In the first closed switch position is the counter-contact element 12 in Area 28, but is not yet on the second Contact element 16 on.
  • a material from the selected first contact element 14 such that be Resistance is greater than that of the second contact element 16, so that after closing the circuit current flow occurring is relatively low and used to engage the starter pinion can.
  • the current initially flows over a resistance range R of the first contact element 14, then over a portion of the second contact element 16 and is subsequently on the spring element 20th transfer.
  • Frictional forces for self-cleaning of the contact surfaces be used.
  • Spring element 30 is provided next to the spring element 20 the necessary restoring force is available can put.
  • a further contact element 32 in addition to the first and second contact element 14, 16 also a further contact element 32 may be present.
  • the further contact element 32 consists of a contact body 34 and a spring element 36.
  • the Contact body 34 is based on a high-current carbon realized.
  • the spring elements 20 and 36 are sufficiently high have electrical conductivity.
  • the contact body 18 of the first contact element 14 consists of a Resistance coal.

Landscapes

  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Contacts (AREA)
  • Valve Device For Special Equipments (AREA)
EP01103761A 2000-02-23 2001-02-15 Contact de commutation pour un démarreur Withdrawn EP1128410A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE10008256 2000-02-23
DE2000108256 DE10008256A1 (de) 2000-02-23 2000-02-23 Schaltkontakt für einen Startermotor

Publications (2)

Publication Number Publication Date
EP1128410A2 true EP1128410A2 (fr) 2001-08-29
EP1128410A3 EP1128410A3 (fr) 2003-05-21

Family

ID=7631974

Family Applications (1)

Application Number Title Priority Date Filing Date
EP01103761A Withdrawn EP1128410A3 (fr) 2000-02-23 2001-02-15 Contact de commutation pour un démarreur

Country Status (2)

Country Link
EP (1) EP1128410A3 (fr)
DE (1) DE10008256A1 (fr)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2944068A1 (fr) * 2009-04-07 2010-10-08 Valeo Equip Electr Moteur Dispositif de demarrage pour moteur a combustion interne, notamment de vehicule automobile.
FR2944067A1 (fr) * 2009-04-07 2010-10-08 Valeo Equip Electr Moteur Dispositif de demarrage pour moteur a combustion interne, notamment de vehicule automobile.
CN108538677A (zh) * 2018-06-19 2018-09-14 浙江紫光电器有限公司 一种隔离开关

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB585259A (en) * 1945-02-01 1947-02-03 English Electric Co Ltd Contact device for gas-blast circuit breaker
FR1314563A (fr) * 1961-12-01 1963-01-11 Cie Ind Des Telephones Commutateur à plots multiples
NL6511915A (fr) * 1965-09-13 1967-03-14
US3699292A (en) * 1970-07-03 1972-10-17 Alps Electric Co Ltd Slidable contact member for minature switch
DE2354173A1 (de) * 1973-10-30 1975-05-07 Transformatoren Union Ag Kontaktanordnung fuer waehler und umsteller von stufenschaltern
FR2285700A1 (fr) * 1974-09-19 1976-04-16 Alsthom Cgee Dispositif de coupure
IT1187432B (it) * 1985-10-03 1987-12-23 Ceme Spa Coppia di contatti elettrici particolarmente adatta a costituire il punto di continuita' o di isolamento fra due parti metalliche conduttrici di sezionatori elettrici per media alta e altissima tensione di cui uno dei contatti e' racchiuso in un involucro completamente stagno e uno e' protetto dalla polluzione ambientale
DE3709664A1 (de) * 1987-03-24 1988-10-06 Bbc Brown Boveri & Cie Mehrstellungs-kommutierungstrenner fuer hoch- und mittelspannungs-schaltanlagen
DE4122747A1 (de) * 1990-07-23 1992-02-06 Daimler Benz Ag Elektrischer mehrstufenschalter
US5656981A (en) * 1995-05-26 1997-08-12 Nippondenso Co., Ltd. Magnet switch for starters

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2944068A1 (fr) * 2009-04-07 2010-10-08 Valeo Equip Electr Moteur Dispositif de demarrage pour moteur a combustion interne, notamment de vehicule automobile.
FR2944067A1 (fr) * 2009-04-07 2010-10-08 Valeo Equip Electr Moteur Dispositif de demarrage pour moteur a combustion interne, notamment de vehicule automobile.
EP2239456A1 (fr) * 2009-04-07 2010-10-13 Valeo Equipements Electriques Moteur Dispositif de démarrage pour moteur à combustion interne, notamment de véhicule automobile
EP2239455A1 (fr) * 2009-04-07 2010-10-13 Valeo Equipements Electriques Moteur Dispositif de démarrage pour moteur à combustion interne, notamment de véhicule automobile
CN108538677A (zh) * 2018-06-19 2018-09-14 浙江紫光电器有限公司 一种隔离开关
CN108538677B (zh) * 2018-06-19 2024-04-16 浙江紫光电器有限公司 一种隔离开关

Also Published As

Publication number Publication date
DE10008256A1 (de) 2001-09-06
EP1128410A3 (fr) 2003-05-21

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