EP0280680A1 - Electromagnetic switch, in particular for starting devices of internal combustion engines. - Google Patents
Electromagnetic switch, in particular for starting devices of internal combustion engines.Info
- Publication number
- EP0280680A1 EP0280680A1 EP86905724A EP86905724A EP0280680A1 EP 0280680 A1 EP0280680 A1 EP 0280680A1 EP 86905724 A EP86905724 A EP 86905724A EP 86905724 A EP86905724 A EP 86905724A EP 0280680 A1 EP0280680 A1 EP 0280680A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- armature
- magnet
- guide sleeve
- contact bridge
- switching pin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H51/00—Electromagnetic relays
- H01H51/02—Non-polarised relays
- H01H51/04—Non-polarised relays with single armature; with single set of ganged armatures
- H01H51/06—Armature is movable between two limit positions of rest and is moved in one direction due to energisation of an electromagnet and after the electromagnet is de-energised is returned by energy stored during the movement in the first direction, e.g. by using a spring, by using a permanent magnet, by gravity
- H01H51/065—Relays having a pair of normally open contacts rigidly fixed to a magnetic core movable along the axis of a solenoid, e.g. relays for starting automobiles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/001—Means for preventing or breaking contact-welding
Definitions
- Electromagnetic switch in particular for starting devices for internal combustion engines
- the invention is based on an electromagnetic switch according to the preamble of the main claim.
- the switch pin With such a switch, the switch pin is held pressed by the armature return spring against the magnet armature, so that the magnet armature and switch pin are only moved together and cannot move relative to one another.
- the disadvantage here is that the switching pin has to travel the same distance as the magnet armature until the contact bridge is in contact with the main current contacts and the magnet armature is in contact with the magnet core.
- the long switching path of the switching pin with the contact bridge requires a relatively large switching space.
- Such a switch can no longer be used due to the ever smaller installation space that is still available on the motor vehicle.
- an electromagnetic switch in which the armature can move relative to the switching pin, so that the switching space can be shortened, which is supported on the armature and directly on the
- the armature return spring acting as an armature cannot influence the return movement of the contact bridge away from the main current contacts and thus cannot support the force of the return spring housed in the control room in order to ensure the safe release of the contact bridge from the main current contacts.
- the invention has for its object to provide an electromagnetic switch of the type mentioned with a shortened length, in which a safe release of the contact bridge from the main power contacts is made possible.
- the measures listed in the subclaims allow advantageous developments of the switch specified in the main claim. It is particularly advantageous to guide the switching pin through the guide sleeve, for example made of glass fiber-reinforced thermoplastic, both in the magnetic core and in the magnet armature, in order to avoid the undesirable shaking and shaking, which occurs particularly during rough operation in motor vehicles Vibration influences become ineffective and thus prevent damage to the magnet armature and core as well as to the switching pin.
- the compression spring applied to the magnetic core can be made sufficiently strong to reliably detach the contact bridge from the main current contacts independently of the armature return spring.
- An embodiment of the invention is shown in the drawing. It shows an electromagnetic switch in longitudinal section.
- An electromagnetic switch has a cup-shaped housing 1, which also serves as a yoke.
- a magnetic core 2 rests on its end face.
- a brass sleeve 3 On one shoulder of the magnetic core 2 sits one end of a brass sleeve 3, the other end of which is inserted into a bore in the bottom of the housing 1.
- a winding support 4 On the brass sleeve 3, a winding support 4 is arranged, on which an excitation winding, which is formed from a pull-in winding 5 and a holding winding 6, is accommodated.
- a spring 7 is inserted which holds the winding support 4 in the housing 1 in a tolerance-compensating and vibration-resistant manner.
- the outer end face of the magnetic core 2 delimits a switch space 8, which is enclosed by a cap 9.
- the cap 9 has a flange 10 on its edge facing the magnetic core 2.
- a spring element 11 is inserted between the magnetic core 2 and the edge of the cap.
- a mounting edge. 12 of the housing 1 extends over the magnetic core 2 and the flange 10 and is flanged behind the flange 10.
- two main current contacts 13 and 1 4 are fastened, which protrude into the control room 8 and have connecting bolts leading from the cap 9, which in a manner known per se and not shown in more detail to the positive pole of a battery or to the field winding of a starting motor are connected.
- a magnetic armature 15 is guided in the brass sleeve 3 so as to be resistant to shaking.
- a driver 16 is fastened for an engagement lever, not shown, of a single-track transmission.
- the magnet armature 15 has a longitudinal bore 17 in which an actuating pin 18 made of magnetizable material is fastened.
- the actuating pin 18 protrudes into an enlarged section 19 of the longitudinal bore 17, which is adjoined by an end section 20 which widens in a funnel shape.
- a compression spring, which serves as an armature return spring 21, is seated in the bore section 19.
- the end windings are widened, whereby the spring end is fixed in the magnet armature 15.
- the end windings of the armature return spring 21 or the armature return spring 21 as a whole can also have a smaller diameter, so that the spring end can be fastened on the actuating bolt 18.
- a switching pin 22 made of non-magnetic material projects through a bore 23 of the magnetic core 2. It has a collar 24 at the end section which faces the actuating pin 18. On the collar 24 and an adjoining central portion of the switching pin 22 is one Guide sleeve 25 made of damping and insulating material, for example made of a glass fiber reinforced thermoplastic. The guide sleeve 25 serves as a guide and mounting of the switching pin 22. In the region of the collar 24, the switching pin 22 is by means of an enlarged end portion 26 of the guide sleeve 25 in section 19 of the
- Switching pin 22 projects into the switching space 8 with one end section.
- a contact pressure spring 27, a contact bridge support 28 made of insulating material, which carries a contact bridge 29, a washer 30 and a stop ring 32 seated in an annular groove 31 are arranged on the end section.
- the contact bridge carrier 28 In the rest position of the switch, the contact bridge carrier 28 is seated in an enlarged end section 33 of the bore 23 of the magnetic core 2.
- the armature return spring 21 abuts one end against the end face 34 of the switching pin 22.
- the contact pressure spring 27, which is supported at one end on the contact bridge support 28, is at the other end on the end face 35 of the guide sleeve 25.
- a compression spring 36 surrounds the guide sleeve 25 such that it is supported at one end in an annular recess 37 on the end face of the magnetic core 2 facing the magnet armature 15 and with its other end against a collar 38 which is located at the transition of the guide sleeve 25 in the latter enlarged end portion 26 is formed.
- the compression spring 36 is supported via the guide sleeve 25 on the collar 24 of the switching pin 25.
- the compression spring 36 is provided with a stronger compression force than the armature return spring 21.
- the spring arrangement 21, 36 holds the assembly of switching pins 22, 24, 34 together with the guide sleeve 25, 26, 35, 38, contact pressure spring 27, contact bridge support 28 with contact bridge 29 and the magnet armature 15 with actuating pin 18 in the in due to the bias of the armature return spring 21 Drawing shown rest position.
- the magnet armature 15 When the winding 5, 6 is energized, the magnet armature 15 is pulled against the force of the armature return spring 21, which is further tensioned, against the force of the armature return spring 21, which is engaged, against the force of the armature return spring 21, which is further tensioned, to the magnetic core 2 to engage the pinion of the aforementioned single-speed transmission, not shown .
- the magnet armature 15 together with the actuating pin 18 is moved towards the magnetic core 2 and the switching pin 22. If the actuating pin 18 rests on the end face of the switching pin 22, the switching pin 22 is pushed further into the switching space 8 during the further retraction movement of the magnet armature 15, the compression spring 36 also being tensioned.
- the contact bridge 29 is pressed against the main current contacts 13 and 14 and with the support of the contact pressure spring 27 held on the main current contacts 13 and 14.
- the starter motor not shown, connected to the connecting bolt of the main current contact 13 is connected in a manner known per se to the current source, also not shown, connected to the connecting bolt of the main current contact 14.
- the starter motor receives current for starting the internal combustion engine.
- the power supply to the field winding of the electromagnetic switch is switched off.
- the compression spring 36 which is provided with a much greater spring force than the armature return spring 21, then immediately separates the contact bridge 29 from the main current contacts 13 and 14.
- the switching pin 22 together with the guide sleeve 25, contact bridge carrier 28 and contact bridge 29 is moved back by the strong compression spring 36 into the rest position shown in the drawing and releases the magnet armature 15 from the magnet core 2. Then the armature return spring 21 moves the magnet armature 15 further back into its initial position
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Connection Of Motors, Electrical Generators, Mechanical Devices, And The Like (AREA)
- Electromagnets (AREA)
- Push-Button Switches (AREA)
Abstract
Interrupteur électromagnétique, en particulier pour les dispositifs de démarrage de moteurs à combustion interne, dont l'axe (22) qui porte le pont de contact (29) pour les contacts (13 et 14) de courant principal est équipé d'un manchon de guidage (25), qui porte et guide l'axe (22) dans l'armature (15) et le noyau (2) de l'aimant. L'axe (22) s'appuie sur les ressorts (21 et 36), et ainsi sur l'armature (15) et le noyau (2) de l'aimant par l'intermédiaire du manchon de guidage (25) sur lequel s'appuient d'un côté un ressort de rappel (21) appliqué contre l'armature (15) de l'aimant et de l'autre côté un ressort de pression (36) plus fort appliqué contre le noyau (2) de l'aimant. L'armature (15) de l'aimant et l'axe (22), avec le manchon de guidage (25), peuvent se déplacer les uns par rapport aux autres. En conséquence la distance entre le pont de contact (29) et les contacts (13 et 14) de courant principal peut être maintenue plus faible que la course de l'armature (15) de l'aimant vers le noyau (2) de celui-ci. Le ressort de pression ( 36), après fermeture de l'interrupteur, sépare de manière fiable le pont de contact (29) des contacts de courant principal, amène l'axe (22) à sa position de repos et écarte l'armature (15) du noyau (2) de l'aimant, après quoi le ressort de rappel (21) de l'armature ramène l'armature (15) de l'aimant à sa position de départ.Electromagnetic switch, in particular for starting devices of internal combustion engines, of which the axis (22) which carries the contact bridge (29) for the contacts (13 and 14) of the main current is equipped with a sleeve of guide (25), which carries and guides the axis (22) in the frame (15) and the core (2) of the magnet. The axis (22) rests on the springs (21 and 36), and thus on the armature (15) and the core (2) of the magnet via the guide sleeve (25) on which rest on one side a return spring (21) applied against the armature (15) of the magnet and on the other side a stronger pressure spring (36) applied against the core (2) of the 'magnet. The armature (15) of the magnet and the axis (22), together with the guide sleeve (25), can move relative to each other. Consequently, the distance between the contact bridge (29) and the main current contacts (13 and 14) can be kept smaller than the stroke of the armature (15) of the magnet towards the core (2) of the magnet. -this. The pressure spring (36), after closing the switch, reliably separates the contact bridge (29) from the main current contacts, brings the shaft (22) to its rest position and moves the armature ( 15) of the magnet core (2), after which the armature return spring (21) returns the magnet armature (15) to its starting position.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE19853537598 DE3537598A1 (en) | 1985-10-23 | 1985-10-23 | ELECTROMAGNETIC SWITCHES, IN PARTICULAR FOR TURNING DEVICES OF INTERNAL COMBUSTION ENGINES |
DE3537598 | 1985-10-23 |
Publications (2)
Publication Number | Publication Date |
---|---|
EP0280680A1 true EP0280680A1 (en) | 1988-09-07 |
EP0280680B1 EP0280680B1 (en) | 1991-04-24 |
Family
ID=6284196
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP19860905724 Expired - Lifetime EP0280680B1 (en) | 1985-10-23 | 1986-09-23 | Electromagnetic switch, in particular for starting devices of internal combustion engines |
Country Status (7)
Country | Link |
---|---|
US (1) | US4755781A (en) |
EP (1) | EP0280680B1 (en) |
JP (1) | JPH07101587B2 (en) |
AU (1) | AU584467B2 (en) |
BR (1) | BR8607200A (en) |
DE (2) | DE3537598A1 (en) |
WO (1) | WO1987002824A1 (en) |
Families Citing this family (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0643500Y2 (en) * | 1987-06-15 | 1994-11-14 | 三菱電機株式会社 | Starter motor solenoid switch |
JPH025758A (en) * | 1988-06-22 | 1990-01-10 | Mitsubishi Electric Corp | Electric motor for starting |
JPH02110151U (en) * | 1989-02-20 | 1990-09-04 | ||
US5021760A (en) * | 1989-10-03 | 1991-06-04 | Clum Manufacturing Company, Inc. | Solenoid switch contact and mounting assembly |
IT1241000B (en) * | 1990-10-31 | 1993-12-27 | Magneti Marelli Spa | ELECTROMAGNETIC DEVICE TO CONTROL THE POWER SUPPLY TO THE ELECTRIC STARTING MOTOR OF AN INTERNAL COMBUSTION ENGINE FOR MOTOR VEHICLES. |
GB9104047D0 (en) * | 1991-02-27 | 1991-04-17 | Lucas Ind Plc | Solenoid |
EP0587611B1 (en) * | 1991-03-28 | 1997-05-21 | Kilovac Corporation | Dc relay device |
DE4209967A1 (en) * | 1992-03-27 | 1993-09-30 | Bosch Gmbh Robert | Engagement relay for starting device for internal combustion engines |
US5892194A (en) * | 1996-03-26 | 1999-04-06 | Matsushita Electric Works, Ltd. | Sealed contact device with contact gap adjustment capability |
US5999073A (en) * | 1996-04-10 | 1999-12-07 | Wpi Magnetic, Inc. | Tri-core, low reluctance tubular solenoid |
FR2783089B1 (en) * | 1998-09-03 | 2000-10-13 | Valeo Equip Electr Moteur | STARTER CONTACTOR COMPRISING A MAGNETIC CORE FIXED IN MULTIPLE PARTS |
FR2795859B1 (en) * | 1999-06-30 | 2001-08-31 | Valeo Equip Electr Moteur | CONTACTOR FOR A MOTOR VEHICLE STARTER AND STARTER COMPRISING SUCH A CONTACTOR |
FR2854665B1 (en) * | 2003-03-28 | 2007-02-23 | Valeo Equip Electr Moteur | ELECTROMAGNETIC CONTACTOR FOR CONTROLLING AN ELECTRIC STARTER |
US7053327B2 (en) * | 2004-10-26 | 2006-05-30 | Eaton Corporation | Apparatus and method for use in circuit interrupters |
WO2006104080A1 (en) | 2005-03-28 | 2006-10-05 | Matsushita Electric Works, Ltd. | Contact device |
JP4525610B2 (en) * | 2006-02-23 | 2010-08-18 | 株式会社デンソー | Electromagnetic switch |
JP5206157B2 (en) * | 2008-06-30 | 2013-06-12 | オムロン株式会社 | Electromagnetic relay |
JP5163317B2 (en) * | 2008-06-30 | 2013-03-13 | オムロン株式会社 | Contact device |
KR101004465B1 (en) * | 2008-09-05 | 2010-12-31 | 엘에스산전 주식회사 | Relay |
DE102009001725A1 (en) | 2009-03-23 | 2010-09-30 | Robert Bosch Gmbh | Starting relay of a starting device for internal combustion engines |
DE102009027844A1 (en) * | 2009-07-20 | 2011-01-27 | Robert Bosch Gmbh | Switching relay with contact tearing device |
JP5573250B2 (en) * | 2010-03-09 | 2014-08-20 | オムロン株式会社 | Sealed contact device |
WO2011115057A1 (en) * | 2010-03-15 | 2011-09-22 | オムロン株式会社 | Contact switching device |
US8305168B2 (en) * | 2010-03-18 | 2012-11-06 | Iskra Avtoelektrika D.D. | Forced return solenoid |
US8570124B2 (en) * | 2011-06-03 | 2013-10-29 | Unipoint Electric Mfg. Co., Ltd. | Starting switch structure |
CN102881515B (en) * | 2012-10-22 | 2015-02-04 | 苏州依斯克拉汽车电器有限公司 | Reverse-impact forced-power-failure type electromagnetic switch |
JP6064577B2 (en) * | 2012-12-19 | 2017-01-25 | 株式会社デンソー | Electromagnetic switch for starter |
JP5991189B2 (en) * | 2012-12-20 | 2016-09-14 | 株式会社デンソー | Electromagnetic switch for starter |
DE102013114830A1 (en) * | 2013-12-23 | 2015-06-25 | Eto Magnetic Gmbh | Electromagnetic actuator |
KR101943364B1 (en) * | 2015-04-23 | 2019-04-17 | 엘에스산전 주식회사 | Magnetic Switch |
DE102015121033A1 (en) | 2015-07-23 | 2017-01-26 | Epcos Ag | Magnetic armature, contactor with magnetic armature and method for switching a contactor |
EP3184804A1 (en) * | 2015-12-22 | 2017-06-28 | Mahle International GmbH | Solenoid drive for a starter for an internal combustion engine |
US10890154B2 (en) * | 2016-04-26 | 2021-01-12 | Mitsubishi Electric Corporation | Electromagnetic switch device for starter |
DE112019000694A5 (en) * | 2018-02-07 | 2020-10-15 | Tdk Electronics Ag | Switching device for switching an electrical load |
DE102018110919A1 (en) * | 2018-05-07 | 2019-11-07 | Tdk Electronics Ag | switching device |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1463231B2 (en) * | 1964-05-22 | 1970-01-08 | Kissling, Heinrich. 7261 Sulz | Arrangement of several electrical limit switches in a housing sealed against liquids |
DE7731335U1 (en) * | 1977-10-11 | 1979-03-22 | Robert Bosch Gmbh, 7000 Stuttgart | ELECTROMAGNETIC ACTUATOR |
DE2813699C2 (en) * | 1978-03-30 | 1986-08-28 | Robert Bosch Gmbh, 7000 Stuttgart | Electromagnetic switch, in particular for starting devices for internal combustion engines |
DE3033241A1 (en) * | 1980-09-04 | 1982-04-08 | Elan-Schaltelemente Kurt Maecker Gmbh, 4040 Neuss | Plunger type limit switch - has compressed compression spring positioned around plunger support pin |
JPS6326906Y2 (en) * | 1981-02-10 | 1988-07-21 | ||
DE8221714U1 (en) * | 1982-07-30 | 1982-09-23 | Robert Bosch Gmbh, 7000 Stuttgart | Electromagnetic switch, in particular for starting devices for internal combustion engines |
US4521758A (en) * | 1983-08-29 | 1985-06-04 | Clum Mfg. Co. Inc. | Electric solenoid structure |
FR2567586B1 (en) * | 1984-07-10 | 1986-12-19 | Paris & Du Rhone | STARTER PINION GEAR CONTROL FOR INTERNAL COMBUSTION ENGINE STARTER. |
JPH0643979Y2 (en) * | 1985-07-19 | 1994-11-14 | 三菱電機株式会社 | Electromagnetic switch |
DE3632469A1 (en) * | 1986-09-24 | 1988-03-31 | Bosch Gmbh Robert | ELECTROMAGNETIC SWITCHES, IN PARTICULAR FOR TURNING DEVICES OF INTERNAL COMBUSTION ENGINES |
-
1985
- 1985-10-23 DE DE19853537598 patent/DE3537598A1/en not_active Withdrawn
-
1986
- 1986-09-23 AU AU64056/86A patent/AU584467B2/en not_active Ceased
- 1986-09-23 WO PCT/DE1986/000391 patent/WO1987002824A1/en active IP Right Grant
- 1986-09-23 DE DE8686905724T patent/DE3678966D1/en not_active Expired - Lifetime
- 1986-09-23 EP EP19860905724 patent/EP0280680B1/en not_active Expired - Lifetime
- 1986-09-23 US US07/063,129 patent/US4755781A/en not_active Expired - Lifetime
- 1986-09-23 JP JP61505042A patent/JPH07101587B2/en not_active Expired - Lifetime
- 1986-09-23 BR BR8607200A patent/BR8607200A/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO8702824A1 * |
Also Published As
Publication number | Publication date |
---|---|
US4755781A (en) | 1988-07-05 |
JPH07101587B2 (en) | 1995-11-01 |
AU6405686A (en) | 1987-05-19 |
BR8607200A (en) | 1988-09-13 |
EP0280680B1 (en) | 1991-04-24 |
DE3678966D1 (en) | 1991-05-29 |
JPS63501832A (en) | 1988-07-21 |
AU584467B2 (en) | 1989-05-25 |
DE3537598A1 (en) | 1987-05-27 |
WO1987002824A1 (en) | 1987-05-07 |
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