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
• • 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
  • H01H50/30—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature
  • H01H50/305—Mechanical arrangements for preventing or damping vibration or shock, e.g. by balancing of armature damping vibration due to functional movement of armature
• • 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
• • 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
  • F02N15/022—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch
  • F02N15/023—Gearing between starting-engines and started engines; Engagement or disengagement thereof the starter comprising an intermediate clutch of the overrunning type
• • 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
• • 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
  • F02N15/062—Starter drives
  • F02N15/063—Starter drives with resilient shock absorbers
• • 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
  • F02N2250/00—Problems related to engine starting or engine's starting apparatus
  • F02N2250/08—Lubrication of starters; Sealing means for starters

Definitions

• DE 101 24 506 A1 relates to a starter for a motor vehicle.
• the starter comprises a pole housing containing the starter motor, an engagement relay arranged parallel thereto and containing a magnetic switch, an engagement lever rotatably mounted with a transition region between the pole housing and the engagement relay for coupling the starter motor to the internal combustion engine. Furthermore, a seal against ingress of contaminants and moisture is provided in the engagement relay.
• the seal is formed by a rubber membrane connected to the housing walls within the transition region between the pole housing and the engagement relay.
• the engagement relay comprises a contact bridge bridging at least two contact pins in the ON state, which is attached to a movable switching axis.
• the contact bridge has at least two contact pins assigned to a defined contact areas, which are provided in their longitudinal extent and transversely to their longitudinal extent flexible spring arms.
• Startups are performed in starters, which are used on internal combustion engines with a start-stop functionality, up to half a million and more shifts. This means that the electric starting device must be designed accordingly. The electric starting device must therefore be designed for such a high number of switching cycles and complete this trouble-free. It has been found that passenger cars equipped with start-stop functionality place greater demands on the acoustics of the electric start device. Noises that occur by striking metallic components in the components of a starter, in particular an electrical starter, are perceived as a loss of comfort and bothersome. Disclosure of the invention
• Anchor conclusion remaining fluid volume forms a fluid cushion, which dampens the stop movement of the front side of the relay armature at its retraction into the relay housing and consequently the resulting contact in contact between the front side of the relay armature with the front side of the armature return incident impact attenuation by energy reduction.
• Relay anchor and the relay housing a precise transition fit, such. H7 / g6 to reduce the leakage losses, i. the flow of fluid out of the cavity between the end faces of the relay armature and the armature circuit is kept as low as possible.
• the relay armature can be traversed by a longitudinal bore. This is both with the cavity between the front side of the relay armature as well as with the environment in connection.
• a valve e.g. a check valve, to be installed. If the valve is e.g.
• valve in the armature return opens at the valve seat, for example. a main channel, which can be closed by a valve element, and a secondary channel, which opens adjacent to the closing element and is always open.
• the flow cross sections of the main channel and the secondary channel are dimensioned such that the flow cross section of the
• Main channel exceeds the flow cross-section of the secondary channel. Will that be Compresses fluid volume in the cavity between the front side of the relay armature and the front side of the armature circuit, the closing element is pressed into the seat and closes the main channel.
• the design of the flow cross section of the secondary channel which is open, there is a throttled outflow of the fluid volume from the cavity between the end face of the relay armature and the front side of the armature circuit, so that a stop movement of the end face of the relay armature on the front side of the armature yoke damping fluid volume Cavity remains, which is only partially relieved of pressure in the discharge space on the serving as a discharge channel during compression of the Fluidvo- lumen.
• a guide bushing surrounding a shift pin with a number of openings e.g. Cross bores, be provided.
• these transverse bores permit the fluid volume to flow out through the openings, depending on their degree of opening, relative to the stationary armature return arranged in the relay.
• the guide bush serves as a slide, wherein the outflowing fluid volume from the cavity between the relay armature and the armature feedback of the relay is defined by the degree of opening or coverage of the openings formed in the wall charge bushing. The volume flowing out of the cavity between the relay armature and the armature return via the openings in the wall of the guide bush flows into the relief space of the relay.
• a pin-shaped valve element is provided in the armature circuit, which is biased by a spring and is located when approaching the end face of the relay armature in the closed state. If the end face of the approaching relay armature encounters one end of the pin-shaped valve when the distance A s is reached, this will be reached as the relay armature approaches.
• a channel in which the pin-shaped valve element is received in the armature circuit be designed such that it communicates with a groove, via which upon actuation of the pin-shaped valve element by the end face of the relay armature, a fluid volume from the remaining, the distance As according to defined cavity flows between the front side of the relay armature and the front side of the armature circuit.
• FIG. 2 a schematic representation of the relay with relay armature and armature feedback
• FIG. 3 shows a variant of a valve as a check valve
• FIG. 4 shows a guide bush acting as a slide in the armature return, received on a shift pin, not shown in FIG. 4,
• Figure 6 is a valve which is actuated upon reaching a distance As between the front side of the relay armature and the end face of the stationary arranged in the relay armature armature circuit, and
• Figure 6.1 is a section through a channel with a groove in the armature return of the relay.
• FIG. 1 shows a starting device 10.
• This starting device 10 has, for example, a starter motor 13 and a relay 16.
• the starter motor 13 and the relay 16 are fixed to a common drive end plate 19.
• the starter motor 13 is functionally to drive a starter pinion 22, which is usually designed as a spur gear.
• the starting pinion 22 is meshed with a ring gear 25 of an internal combustion engine not shown in FIG.
• the starter motor 13 has a pole tube as a housing 28, which carries on its inner circumference pole pieces 31, which are each wrapped by a field winding 34.
• the pole shoes 31 in turn surround an armature 37 which has an armature packet 43 constructed from plates 40 and an armature winding 49 arranged in slots 46.
• the armature package 43 is pressed onto a drive shaft 44.
• a commutator 52 is further attached, which is constructed, inter alia, of individual commutator bars 55.
• the commutator bars 55 are electrically connected in known manner to the armature winding 49 such that when the commutator bars 55 are energized by carbon brushes 58, a rotational movement of the armature 37 in the pole tube 28 occurs.
• the drive shaft 44 is commutator side supported with a shaft journal 64 and a sliding bearing 67, which in turn is held stationary with a Kommutatorlagerdeckel 70.
• the commutator 70 is in turn secured by means of tie rods 73 which are distributed over the circumference of the pole tube 28 (screws, for example two, three or four pieces), in the drive end plate 19. It supports the pole tube 28 on the drive bearing plate 19, and the commutator bearing cover 70 on the pole tube 28.
• a sun gear 80 connects to the armature 37, which is part of a planetary gear 83.
• the sun gear 80 is surrounded by a plurality of planetary gears 86, usually three planet wheels 86, which are supported by means of rolling bearings 89 on journals 92.
• the planet gears 86 roll in one
• the planet wheels 86 are adjoined by a planetary carrier 98, in which the axle journals 92 are accommodated.
• the planet carrier 98 is in turn stored in an intermediate storage 101 and a slide bearing 104 arranged therein.
• the intermediate bearing 101 is designed cup-shaped, that in this both the planetary carrier 98 and the planet gears 86 are added.
• the ring gear 95 is arranged, which is closed by a cover 107 relative to the armature 37.
• the intermediate bearing 101 is supported with its outer circumference on the inside of the pole tube 28.
• the armature 37 faces away from the commutator 52
• the output shaft 1 16 is divided into various sections.
• the section which is arranged in the sliding bearing 104 of the intermediate bearing 101 a section with a straight teeth 125 (internal teeth), which is part of a shaft-hub connection 128.
• the shaft-hub connection 128 in this case allows the axially rectilinear sliding of a driver 131.
• the driver 131 is a sleeve-shaped extension which is integral with a cup-shaped outer ring 132 of the freewheel 137.
• the freewheel 137 (Richtgesperre) further consists of the inner ring 140 which is disposed radially within the outer ring 132.
• the clamp bodies 138 In cooperation with the inner and outer rings, prevent relative movement between the outer ring and the inner ring in a second direction.
• the freewheel 137 allows a relative movement between inner ring 140 and outer ring 132 only in one direction.
• the inner ring 140 is integral with the Andrehritzel 22 and its helical teeth 143 (external helical teeth) executed.
• the relay 16 has a bolt 150, which represents an electrical contact and which is connected to the positive terminal of an electric starter battery, which is not shown in the illustration according to FIG.
• the bolt 150 is passed through a relay cover 153.
• the relay cover 153 terminates a relay housing 156, which by means of a plurality of fasteners 159
• a pull-in winding 162 and a holding winding 165 are further arranged.
• the pull-in winding 162 and the holding winding 165 each cause an electromagnetic field in the switched-on state, which flows through both the relay housing 156 (made of electromagnetically conductive material), a linearly movable armature 168 and an armature return 171.
• the armature 168 carries a push rod 174, which is moved in the direction of linear retraction of the armature 168 in the direction of a switching pin 177.
• the relay 16 or the armature 168 also has the task of moving a tension member 187 in the drive bearing plate 19 rotatably arranged lever.
• the lever 190 usually designed as a fork lever, engages with two "tines" not shown here on its outer circumference two discs 193 and 194 to move an entrained between these driver ring 197 to the freewheel 137 back against the resistance of the spring 200 and thereby to engage the starting pinion 22 in the ring gear 25 of the internal combustion engine.
• Figure 2 shows a schematic section through the relay for actuating the starting device according to Figure 1 on an enlarged scale. From the illustration according to FIG. 2, a relay for actuating an electric starting device is shown on an enlarged scale.
• Figure 2 shows that the relay 16 has a linearly movable armature, i. a relay armature 168, the end face 206 corresponds to the end face of the received in the relay housing 156 armature circuit 171.
• a cavity 236 is formed, which is filled with a fluid, such as e.g. Air is filled.
• the relay armature 168 passes through a channel 204, which opens at an orifice 208 on the end face 206 of the relay armature.
• the armature return 171 is also crossed by a passage 210 in which a valve, shown on an enlarged scale in Figure 3, e.g. designed as a check valve 212, is received.
• a valve shown on an enlarged scale in Figure 3, e.g. designed as a check valve 212, is received.
• Both the channel 204 in the relay armature 168 and the channel 210 in the armature circuit 171 have a diameter of only a few mm.
• the passage 204 in the relay armature 168 extends from the orifice 208 through the relay armature 168 and terminates in the external environment of the relay 16.
• the channel 210 which passes through the armature circuit 171, connects the cavity 236 to a relief space 253 on the side of the armature yoke 171 facing away from the relay armature 168, which is received stationarily in the relay housing 156 of the relay 16.
• Reference numeral 153 denotes a relay cover of the relay 16.
• FIG. 3 shows a valve which is designed as a check valve 212 and is arranged in the channel 210 of the armature return 171.
• a spring-loaded, here spherical designed closing element 214 is provided, which is pressed by the spring into a seat 216 which is formed in the armature yoke 171.
• From the seat 216 of the valve 212 extends both a main channel 218 having a first diameter D- ⁇ , see reference numeral 220, as well as a secondary channel 220, which has a smaller, second diameter D 2 , compare position 224.
• the volume of fluid contained in the cavity 236 is compressed in the direction of the end face of the armature return 171 when the end face 206 approaches linear movement of the relay armature 168.
• an energy dissipation of the relay armature moving toward the armature circuit 171 becomes
• the check valve 212 closes the seat 216 and thus the main channel 218, while a fluid flow through the not closed by the closing element 214 side channel 220, which opens into the discharge chamber 253, can be controlled. This leads to a gradual pressure reduction in the cavity 236, wherein the
• FIG. 4 shows that hydraulic damping in this embodiment variant can also be achieved by means of a guide bush, which is received on the shift pin 177.
• the guide bushing 202 received on the shift pin 177 is provided with a number of openings 230 and 232, respectively, which are e.g. as transverse bores through the wall of the guide bushing 202 may be formed to extend.
• the guide bush 202 is provided with openings formed as transverse bores 230 and 232 into a first position 226, which is formed by solid lines.
• the relay armature 168 with its end face 206 into the cavity 236 of the relay housing 156 of the relay 16, the existing there fluid volume is compressed.
• the not shown in Figure 2, but in Figure 1 shown switching pin 177 moves into the armature circuit 171, so that the recorded on this guide bushing 202 is moved from the position shown in Figure 4, indicated by solid lines first position 226 in its second position 228, which is indicated by dashed lines.
• FIG. 5 shows a further variant of a pneumatic damping of a relay.
• the armature 168 which is only indicated in FIG. 5, is provided at its circumference with a circumferential groove 238 or a recess.
• the V-lip 240 has a leg which is turned against the wall of the relay housing 156. If the relay armature 168 moves in the second direction of movement 44, the upper leg of the V-lip 240 is made to the wall of the relay housing 156, so that a movement-direction-dependent damping with respect to the relay armature 168 results. If, however, the relay armature 168 is moved in the first direction of movement 242, the volume of fluid trapped in the cavity 236 is depressurized.
• a directional pneumatic damping can be achieved in the event that the relay armature 168 moves with its end face 206 into the cavity 236, compressing the volume of fluid contained therein and a initiated gradual pressure reduction in the cavity 236 or, cf.
• the cavity 236 seals against pressure loss, so that the noise when striking the end face 206 of the relay armature 168 is significantly attenuated at the recorded stationary in the relay housing 156 end face of the armature circuit 171.
• FIGS. 6 and 6.1 show a further embodiment variant of the pneumatic damping proposed according to the invention.
• a valve element 246 is actuated.
• Contrary to the action of the spring force of the valve spring 248 is a head 252 of the valve element 246 in the discharge chamber 253 moves, so that a groove 256 is released, via which from the space defined by the distance As cavity 236 fluid volume flows into the discharge chamber 253.
• the valve shown in the illustration according to FIG. 6 does not respond until a well-defined distance A s between the end face 206 of the relay armature 168 and the end face of the armature return 171 that corresponds to this geometry has been reached.
• the bolt is designated by reference numeral 150, via which an energization of the relay 16 takes place.
• the groove 256 in the armature conclusion 171 is e.g. above the actual channel 254 in the material of the armature yoke 171 runs.
• the groove 256 may also be formed in relation to the representation according to the figure 6.1 in 3 o'clock, 6 o'clock or 9 o'clock or any other defined position.
• valve element 246 shown in the representation according to FIG. 6 opens only when a well-defined distance As between the components is reached Relay armature 168 and the stationary in the relay housing 156 arranged anchor conclusion 171st

Landscapes

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

Applications Claiming Priority (2)

Publications (1)

Family

ID=42941830

Family Applications (1)

Country Status (6)

Families Citing this family (8)

Family Cites Families (20)

• 2009
  • 2009-10-01 DE DE102009045262.1A patent/DE102009045262B4/de not_active Expired - Fee Related
• 2010
  • 2010-09-29 WO PCT/EP2010/064481 patent/WO2011039269A1/de not_active Ceased
  • 2010-09-29 EP EP10759656A patent/EP2483552A1/de not_active Withdrawn
  • 2010-09-29 US US13/499,742 patent/US20120256714A1/en not_active Abandoned
  • 2010-09-29 CN CN2010800443654A patent/CN102575633A/zh active Pending
  • 2010-09-29 JP JP2012531413A patent/JP2013506948A/ja active Pending

Non-Patent Citations (1)

Also Published As

Similar Documents

Legal Events