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
  • F02N11/00—Starting of engines by means of electric motors
  • F02N11/10—Safety devices
• • 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
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H50/00—Details of electromagnetic relays
  • H01H50/54—Contact arrangements
  • H01H50/546—Contact arrangements for contactors having bridging contacts
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • H01H85/02—Details
  • H01H85/36—Means for applying mechanical tension to fusible member
• • H—ELECTRICITY
  • H01—ELECTRIC ELEMENTS
  • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
  • H01R4/00—Electrically-conductive connections between two or more conductive members in direct contact, i.e. touching one another; Means for effecting or maintaining such contact; Electrically-conductive connections having two or more spaced connecting locations for conductors and using contact members penetrating insulation
  • H01R4/28—Clamped connections, spring connections
  • H01R4/48—Clamped connections, spring connections utilising a spring, clip, or other resilient member
  • H01R4/4854—Clamped connections, spring connections utilising a spring, clip, or other resilient member using a wire spring
  • H01R4/4863—Coil spring
• • 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
• • 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
  • 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
  • F02N15/006—Assembling or mounting of starting devices
• • 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
  • F02N15/043—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer
  • F02N15/046—Gearing between starting-engines and started engines; Engagement or disengagement thereof the gearing including disengaging toothed gears the gearing including a speed reducer of the planetary type
• • 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
  • H01H85/00—Protective devices in which the current flows through a part of fusible material and this current is interrupted by displacement of the fusible material when this current becomes excessive
  • H01H85/02—Details
  • H01H85/0241—Structural association of a fuse and another component or apparatus

Definitions

• Electromagnetic relay in particular starter relay for a starting device
• the invention relates to an electromagnetic relay, in particular a starter relay for a starting device, according to the preamble of claim 1.
• an electromagnetic starter relay for a starting device of an internal combustion engine is known.
• a starter pinion is adjusted by the starter relay between an axially retracted non-functional position and an advanced engagement position in which the starter pinion engages a ring gear of the internal combustion engine.
• the circuit of an electric starter motor is closed via the starter relay, which sets the starter pinion engaging in the ring gear in rotation.
• a tensioned spring element is held by a fuse element, which releases the spring element when a melting temperature is exceeded, which then pushes the electrically conductive component out of the position connecting the contacts.
• the electromagnetic relay according to the invention is used for example as a starter relay for starting devices for internal combustion engines.
• the relay has an adjustable armature, which by energizing a Relay winding between an initial position and a retraction position is axially adjusted in a housing of the relay.
• the armature displaces a starter pinion of the starting device, which is brought into engagement with a ring gear of the internal combustion engine.
• an electrical circuit is closed to take, for example, when used as a starter relay, an electric starter motor in operation over which the starter pinion is driven.
• the closing of the electrical circuit in the electromagnetic relay is realized in that the armature in the retraction position presses a contact bridge against two mating contacts, which are accommodated in a housing component of the relay.
• the housing component is, for example, a housing cover, which can be placed on a base housing of the relay.
• the two mating contacts are located in the circuit to be closed and are electrically connected to each other in the retraction position of the armature via the contact bridge.
• the fuse therefore comprises the fuse element for
• the fuse element is held non-positively on the housing component. Counter contact and
• Fusible element may form a clamping bandage, which is inserted into a recess in the housing component, wherein the clamping force generated by the frictional connection between the fuse element and the housing component is greater than the spring force of the spring element which acts directly or indirectly on the mating contact and presses in the out-of-contact position , This ensures that the mating contact in the regular operating mode at a temperature below the critical temperature is held securely in its contact position in the housing component and is adjusted only with the reaching of the critical temperature in the out-of-contact position.
• Fuse element in the housing member it may also be appropriate to provide a positive connection between the fuse element and the housing member, wherein the positive connection is released when the fuse element is soft or melts, so that the mating contact can be adjusted by the spring element in the out-of-contact position.
• the mating contact is held exclusively by the fuse element in the contact position in the housing component.
• a recess is introduced, in which the mating contact is included including fuse element.
• the fuse element is preferably located with its outer circumference on the inner wall of the recess and generates there the necessary adhesion for secure mounting of the mating contact in the housing component.
• the fuse element is annular and mounted on the bolt-shaped mating contact and is supported for example by a radially projecting collar on the mating contact.
• the collar limits the fuse element axially - with respect to the longitudinal axis and adjustment of the mating contact - in one direction.
• the fuse element may be limited by a further component on the mating contact, for example, to be attached to the mating contact lug.
• the spring element is also supported on the radially projecting collar on the mating contact, but on the opposite side of the fuse element.
• Spring element which is preferably designed as a helical spring, can also be supported on its opposite side at the bottom of the recess into which the mating contact including fuse element is inserted.
• an opening may be introduced through which the mating contact protrudes, wherein the mating contact is at least largely absorbed force in the opening and in the recess to ensure that the secure holder in the
• Housing component is at least largely performed by the fuse element and is adjusted in a melting of the fuse element of the mating contact of the spring element. According to yet another expedient embodiment is on the
• Housing component for limiting the contact bridge movement arranged a stop.
• the stop which is preferably formed integrally with the housing component, is located on the side facing the contact bridge on
• Housing component and is in the regular operating mode at a distance from the
• Detached stop and supported which prevents the contact bridge is adjusted by the force of a spring element acting on it further in the direction of the mating contact.
• the stop also ensures that a relatively small axial displacement movement of the mating contact is sufficient for transferring from the contact to the external contact position.
• only one of the two mating contacts is held on a fuse element in the housing component, whereas the second mating contact has no such fuse and preferably in all operating conditions and at all temperatures fixed in
• Housing component is added. At the counter contact, over the
• Fuse element is held in the housing component, it is for example a bolt KL45, in the other mating contact to a bolt KL30.
• the fuse element is made of a material compatible with the
• the material is, for example, a thermoplastic.
• Fig. 1 is a starting device for an internal combustion engine with a
• electromagnetic starter relay for adjusting a starter pinion and for starting a starter motor
• Fig. 2 is a section along the housing cover of the starter relay.
• the illustrated in Fig. 1 starting device 1 for an internal combustion engine has a starter pinion 2, which is brought to start the internal combustion engine 4 in engagement with a ring gear 3 of the internal combustion engine.
• the starter pinion 2 is mounted axially displaceably on a shaft 5 as indicated by the double arrow, wherein the starter pinion 2 is non-rotatably coupled to the shaft 5.
• the starter pinion 2 is between a retracted non-functional position and an advanced engagement position with the ring gear 3 of
• a starter relay 6 adjusted, which is formed electromagnetically and includes a bestrombare relay winding 7 and an armature 8, which drawn in energizing the relay coil 7 in this axially becomes.
• the armature 8 is kinematically coupled via an engaging lever 9 with the starter pinion 2, so that the axial adjustment movement of the armature 8 between a rest position and an adjustment position in a corresponding axial
• Adjustment movement of the starter pinion 2 between the non-functional position and the engaged position is used.
• the rotating drive movement of the shaft 5 and the starter pinion 2 is generated by means of an electric starter motor 1 1, which via a
• Planetary gear 12 is coupled to the shaft 5. Upon actuation of the electric starter motor 1 1, the shaft 5 and thus the
• the starting device 1 is associated with a control or control device 10, via which the functions of the starter relay 6 and the starter motor 1 1 are controlled.
• the electrical circuit of the starter motor 1 1 is closed upon reaching the adjustment position by the adjusting movement of the armature 8, so that the starter motor 1 1 sets in motion and the shaft 5 and the starter pinion rotating drives.
• the closing of the circuit of the starter motor 1 1 is effected in that the armature 8 is a switching element, the carrier of an electrically conductive contact bridge, adjusted against two mating contacts 13, 14 in the circuit, so that the mating contacts 13, 14 electrically connected to each other via the contact bridge become.
• Fig. 2 is a longitudinal section through the electromagnetic starter relay 6 in the region of the housing cover 15 is shown, which is placed on a base housing of the starter relay.
• the housing cover 15 In the housing cover 15 are the two
• Counter contacts 13 and 14 electrically connected via an electrically conductive contact bridge 16, which is adjusted by the armature 8 and a component connected to the armature such as a switching axis in the direction of the longitudinal axis 17 of the starter relay.
• the armature 8 In the de-energized state of the starter relay, the armature 8 is in its initial position, in which the contact bridge 16 a Out of contact position occupies and is axially spaced from the mating contacts 13 and 14, so that the circuit is interrupted.
• the contact bridge 16 In the contact position corresponding to the retraction position of the armature, the contact bridge 16 is located on the end faces 13a and 14a of the mating contacts 13, 14, which may be formed as a copper contact.
• the two mating contacts 13, 14 are each received in a recess in the housing member 15 and protrude through the recess, so that the end faces 13a, 14a of the mating contacts 13, 14 protrude into the interior of the starter relay 6.
• the counter contact 13 (bolt KL30) is fixed in the
• the second mating contact 14 (bolt KL45) is held in its recess 18 via a fuse element 19 which is annularly seated on the bolt-shaped mating contact 14 and the outer circumferential surface rests non-positively on the inner wall of the recess 18 in the housing member 15.
• the adhesion is achieved for example by the fact that the association of mating contact 14 and attached
• Fusible element 19 is designed as a press fit and is introduced axially into the recess 18 with a pressing force. The result
• the recess 18 is bounded by a bottom 20 into which an opening 21 is made, through which a portion of the bolt-shaped mating contact 14 projects.
• On the bottom 20 is supported on the side facing away from the contact bridge 16 from a spring element 22 which is designed as a helical spring and the bolt-shaped counter-contact 14 engages.
• a radially enlarged collar 23 is formed, on which the spring element 22 is supported on the bottom 20 opposite side. Accordingly, the mating contact 14 experiences an axial spring force by the spring element 22, the endeavors, the mating contact 14 axially from the contact bridge 16
• the temperature in the fuse element 19 exceeds a critical value, softens the material of the fuse element and the fuse element can transmit no or only small forces on the housing member 15, so that the mating contact 14 under the action of the spring force of the spring element 22 axially from the in Fig. 2 shown desired position is pushed away.
• the critical temperature is achieved in particular in the event of a short circuit. Since with the pushing away of the mating contact 14 of the electrical contact between the end face 14a and the contact bridge 16 is interrupted, the current flow is interrupted, so that the current-related heating decays again.
• the fuse element 19 is seated axially on the radially enlarged collar 23 and is limited on the collar 23 axially facing away from a toothed disc 24, against which a cable lug 25 with a connecting line 26, which is held by a screwed onto the mating contact nut 14 27 ,
• the toothed disc 24, the cable lug 25 and the nut 27 are axially outside of the recess 18th
• housing member 15 adjacent to the recess 18 and the bottom 20 a stop 28, which has the task to limit the contact bridge movement in the axial direction in a triggered fuse. If the mating contact 14 is pressed out of the illustrated desired position by the force of the spring element 22, the contact bridge 16 can initially move axially in the direction of the pressed-away mating contact 14, but only until it reaches the stop 28 Stop 28, which is axially further reset than the mating contact 14 in the desired position, thus preventing the contact bridge 16 when the fuse is triggered, the disappearing mating contact 14 lags behind.

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• Engineering & Computer Science (AREA)
• Chemical & Material Sciences (AREA)
• Combustion & Propulsion (AREA)
• Mechanical Engineering (AREA)
• General Engineering & Computer Science (AREA)
• Physics & Mathematics (AREA)
• Electromagnetism (AREA)
• Fuses (AREA)
• Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)

Priority Applications (1)

Applications Claiming Priority (2)

Publications (1)

Family

ID=57406239

Family Applications (1)

Country Status (3)

Citations (9)

Family Cites Families (9)

• 2015
  • 2015-12-04 DE DE102015224278.1A patent/DE102015224278A1/de not_active Withdrawn
• 2016
  • 2016-11-28 CN CN201680069059.3A patent/CN108603480B/zh not_active Expired - Fee Related
  • 2016-11-28 WO PCT/EP2016/078939 patent/WO2017093158A1/de active Application Filing

Patent Citations (9)

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