EP3086351A1 - Relais de puissance pour un vehicule automobile - Google Patents

Relais de puissance pour un vehicule automobile Download PDF

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Publication number
EP3086351A1
EP3086351A1 EP16162958.9A EP16162958A EP3086351A1 EP 3086351 A1 EP3086351 A1 EP 3086351A1 EP 16162958 A EP16162958 A EP 16162958A EP 3086351 A1 EP3086351 A1 EP 3086351A1
Authority
EP
European Patent Office
Prior art keywords
contact
power relay
bridge
housing
pair
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
Application number
EP16162958.9A
Other languages
German (de)
English (en)
Other versions
EP3086351B1 (fr
Inventor
Markus Birner
Manuel ENGEWALD
Helmut Kraus
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.)
Ellenberger and Poensgen GmbH
Original Assignee
Ellenberger and Poensgen 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 Ellenberger and Poensgen GmbH filed Critical Ellenberger and Poensgen GmbH
Priority to PL16162958T priority Critical patent/PL3086351T3/pl
Publication of EP3086351A1 publication Critical patent/EP3086351A1/fr
Application granted granted Critical
Publication of EP3086351B1 publication Critical patent/EP3086351B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/54—Contact arrangements
    • H01H50/546—Contact arrangements for contactors having bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H50/00—Details of electromagnetic relays
    • H01H50/14—Terminal 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
    • 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
    • H01H50/02—Bases; Casings; Covers
    • H01H50/04—Mounting complete relay or separate parts of relay on a base or inside a case
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H51/00—Electromagnetic relays
    • H01H51/22—Polarised relays
    • H01H51/2209—Polarised relays with rectilinearly movable armature
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/12—Contacts characterised by the manner in which co-operating contacts engage
    • H01H1/14—Contacts characterised by the manner in which co-operating contacts engage by abutting
    • H01H1/20—Bridging contacts
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H1/00—Contacts
    • H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H2203/00—Form of contacts
    • H01H2203/024—Convex contact surface

Definitions

  • the invention relates to a power relay for a vehicle, in particular for a commercial vehicle, according to the preamble of claim 1.
  • a power relay is for example from the DE 10 2010 018 738 A1 known.
  • Generic power relays are used in vehicle technology, especially in commercial vehicles.
  • the power relays are used to electrically disconnect the vehicle battery from the electrical system.
  • such relays are used to drive electric motors of actuators, e.g. a hydraulic pump or a lifting platform, to switch.
  • Such a power relay must be able to switch currents up to a current of about 300 amperes at low voltage of typically 12 volts to 24 volts and is therefore correspondingly massive.
  • Conventional relays used for this purpose typically consist of a cup-shaped body of metal (e.g., iron or steel) in which a magnetic coil and a magnetic yoke and a magnet armature connected to a double contact contact bridge are received.
  • the power relay For connection of the power relay to a load circuit to be switched in the vehicle, the power relay usually comprises solid connecting bolts (threaded bolts) made of metal, which typically have a diameter of 0.5 cm to 1 cm. Cable lugs of the connection lines of the load circuit to be switched are fixed in a contacting manner by means of nuts (contact nuts) on these connection pins.
  • the object of the invention is to specify a power relay suitable for reliable contacting for a vehicle, in particular a commercial vehicle.
  • the power relay has a housing preferably formed of a housing pot and a connection socket, in which two connecting bolts are introduced for contacting with a load circuit.
  • a coil assembly is arranged, which comprises a magnetic coil and a magnet armature, which is coupled via a force transmission member with a contact bridge and displaceable under the action of a magnetic field generated by the magnetic coil in the housing.
  • the contact bridge is reversible between a closed position, in which the contact bridge bridges the connecting pins electrically conductive, and an open position in which the contact bridge is de prestigeiert of the connecting pins, movable.
  • the contact bridge carries two contact elements, which form a first and a second contact pair with subsequently referred to as mating contacts mating contact elements of the connecting bolt, wherein the contact pairs in the closed position form a three-point support or three-point system.
  • the first contact pair is designed such that it has only a single defined (local or local limited) support point (contact point).
  • This support point is suitably provided centrally in the contact bridge-side contact element of the first contact pair and as punctiform as possible with respect to the locally limited contact surface.
  • This is suitably achieved by the contact bridge-side contact element of the first contact pair has a convexly curved to the bolt-side mating contact element contact area.
  • the convex, d. H. with respect to the contact surface outwardly curved contact area in the bridge longitudinal direction to form a centrally raised contact area for providing the support point along the contact bridge-side contact element.
  • the second contact pair is designed such that it has two defined contact point (contact point).
  • contact point With reference to the bolt-side mating contact element, in this case suitably the contact-bridge-side contact element of the second contact pair has a concave vaulted, d. H. based on the contact surface retracted contact area.
  • the concave, arched contact region extends in the bridge longitudinal direction along the contact bridge-side contact element. This embodiment is preferably also produced by a corresponding grinding process.
  • power relay 1 comprises a housing 2, which is formed of two parts, namely a terminal socket 3 and a housing pot 4. Both the terminal base 3 and the housing pot 4 are preferably formed here as injection molded plastic parts.
  • the terminal base 3 limits the housing 2 to a connection side, at which the power relay 1 can be contacted with an external load circuit and with external control lines.
  • This connection side is hereinafter - regardless of the actual orientation of the power relay 1 in the enclosed space - also referred to as the top 5.
  • the housing pot 4 encloses with four side walls 6 and a housing bottom 7, the remaining sides of an approximately cuboid housing interior 8 (FIGS. Fig. 2 ).
  • the housing bottom 7 in this case closes off the housing 2 from an underside 9 facing away from the upper side 5, wherein the term "lower side" is also used independently of the actual orientation of the power relay 1 in the enclosed space.
  • connection bolts 10 For connecting two connecting lines of the load circuit to be connected, three solid connecting bolts 10 are fixed in the connecting base 3, each protruding out of the housing 2 with a threaded shaft 11 to the outside.
  • the connecting bolt 10 are solid turned parts made of metal which, for example, have a diameter of 0.8 cm in the region of the threaded shaft 11.
  • an end-side cable lug of this connection line is placed on the associated threaded shaft 11 and screw-contacted by means of a nut (contact nut).
  • the connection bolts 10 may also be formed by sleeves, each with a threaded bore. Instead of contact nuts contact screws for contacting the leads are provided in this case, which are screwed into the threaded holes.
  • the connection bolts 10 are fixed in the connection socket 3 by extrusion coating with the plastic material of the connection socket 11.
  • a partition wall 12 is formed on the outside of the terminal base 3, which projects into the gap formed between the terminal pin 10.
  • the terminal base 3 To control the power relay 1, that is to trigger switching processes by which the power relay 1 - by making an in-house electrically conductive connection between the terminal bolt 10 - turned on or - by disconnecting this electrically conductive connection - is turned off, are on the terminal base 3 further a plurality of (three exemplary here) signal terminals 13 are formed, via the three corresponding external control lines can each be schraubheftiert with an end-side cable lug with the power relay 1.
  • Each signal terminal 13 is electrically connected to the housing interior 8 via a connecting conductor 14 in the form of a bent stamped sheet metal part.
  • the connecting conductors 14 are in this case inserted between the terminal base 3 and the housing pot 4 or also by encapsulation held in the terminal socket 3.
  • the signal connections 13 are protected against contact by a separate, snap-on plastic cover 15.
  • the power relay 1 comprises a in Fig. 2 illustrated coil assembly 16.
  • a line carrier in the form of a populated with components of an electronic control board is also provided, but in Fig. 2 not visible.
  • the illustrated coil assembly 16 comprises a contact bridge 17 which is arranged in the inner region of the connection base 3 and which is mechanically coupled via a coupling rod 18 to a magnet armature 19 of a magnetic circuit.
  • the magnetic circuit includes in addition to the armature 19, a magnetic yoke 20.
  • Their components are not detailed components are a central, the coupling rod 18 concentrically surrounding hollow cylindrical core, a U-shaped bent bracket and two of the leg ends of the bracket converging pole pieces, which the magnet armature 19th between them.
  • the armature 19 and the components of the magnetic yoke 20 are formed of ferromagnetic material.
  • the coil assembly 16 comprises a magnetic coil 21, which rests in the framed by the magnetic yoke 20 volume.
  • the magnetic coil 21 in this case surrounds the core of the magnetic yoke 20 concentrically and in turn is framed by the bracket and the pole shoes.
  • the coil assembly 16 comprises two auxiliary conductors 22, each formed of a bent stamped sheet metal part, and two compression springs surrounding the coupling rod 18, namely a return spring 23 and a contact pressure spring 24.
  • the above enumerated components of the coil assembly 20 are mechanically held together by a carrier body 25.
  • the carrier body 25 is a one-piece, multi-functional injection molded plastic component.
  • the carrier body 25 carries the magnetic coil 21 and supports the magnetic yoke 20 and the armature 19.
  • the magnet armature 19 and the core of the magnetic yoke 20 are for this purpose received in the interior of the carrier body 25.
  • the magnet armature 19 is in this case slide-mounted directly on the carrier body 20.
  • connection socket 3 is at its bottom with molded snap hooks 26 (FIG. Fig. 3 ) Mistake.
  • the auxiliary conductors 22 are soldered to (Spannungsabgriffs-) terminals 27.
  • the connections 27 are in this case assigned in pairs to the connecting bolt 10. One of the terminals 27 is thus contacted with one of the connecting bolts 10, while the other terminal 27 is contacted with the other connecting bolt 10.
  • the connections 27 are welded in advance to the respective associated connection bolt 10 and are encapsulated together with this with the plastic material of the connection socket 3.
  • the housing pot 4 After mounting the coil assembly 16 and possibly the board to the terminal base 3, the housing pot 4 is slipped over the coil assembly 16 and locked to the terminal base 3 and screwed, whereby the housing 2 is closed.
  • the connection socket 3 rests with a circumferential radial web 28 on a peripheral shoulder 29 in the wall of the housing pot 4.
  • the housing pot 4 engages in this case with a circumferential, limiting its opening collar 30 on the outside around the radial web 28 of the connection socket 3 around and beyond this.
  • the collar 30 thus surrounds the top of the radial web 28 as a balustrade and forms together with the terminal base 3 a trough-shaped structure or trough 31.
  • this trough 31 with an initially filled with liquid and curing in the course of a curing phase potting compound 32.
  • a two-component system consisting of an epoxy resin and a mixed hardener is used as potting compound 32.
  • connection conductors 14 are guided for this purpose in the region of the trough 31 through the connection base 3.
  • the passages of the connecting bolt 10 through the terminal base 3 are sealed separately from the trough 31 by potting compound 32.
  • connection bolts 10 each also form fixed contacts of the main switching device of the power relay 1 provided for switching the load circuit.
  • the ends of the connection bolts 10 projecting from the underside of the connection socket 3 into the housing interior 8 are each provided with a contact element designated below as a countercontact 33.
  • the corresponding moving contact of the main switching device forms the contact bridge 17 which, in contrast to each of the mating contacts 33, comprises a contact element 34, which is also referred to below as a contact.
  • the contact elements 34 which are electrically short-circuited within the contact bridge 17, each form a contact pair 33, 34 with the opposing mating contacts 33.
  • Fig. 2 shows - as well as Fig. 5 -
  • the power relay 1 in an open position in which the contact elements 34 are lifted from the mating contacts 33 (deuttoniert), so that there is no electrically conductive connection between the terminal pin 10.
  • the magnetic coil 21 is energized.
  • a magnetic flux is generated in the magnetic yoke 20, through which the magnet armature 19 is attracted against the core of the magnetic yoke 20.
  • the contact bridge 17 is thereby deflected upward by means of the coupling rod 18, so that the contact elements 34 abut against the corresponding counter contact elements 33.
  • a conductive connection between the connecting pins 10 is formed via the contact bridge 17.
  • the contact elements 34 and the opposing counter contacts 33 in each case form two contact pairs 33, 34th
  • the magnetic coil 21 is energized with reverse polarity.
  • the holding force generated by permanent magnets is compensated, so that the armature 19 is withdrawn by the return spring 23 from the core and thus pressed into the open position.
  • the magnet armature 19 in this case takes over the coupling rod 18 again with the contact bridge 17, whereby the contact elements 34 are de prestigeiert under separation of the electrical connection between the terminal pins 10 of the corresponding mating contacts 33.
  • An attached at the lower end of the support body 25 damping element can intercept this movement, so that a spring back of the formed from the armature 19, the coupling rod 18 and the contact bridge 17 unit is prevented in the direction of the closed position.
  • each of the two switching positions of the power relay 1 is stable even in the de-energized state of the solenoid 21.
  • the magnetic coil 21 must be energized only temporarily.
  • the control of the solenoid 21 is carried out either directly via the signal terminals 14 or via the control electronics, which controls the solenoid coil 21 in response to external or internal control commands, which are supplied to the control electronics via the signal terminals 13.
  • the control electronics further determined in the on state of the power relay 1, the voltage drop across the terminal pin 10 voltage as a measure of the current flowing through the power relay 1 load current or to detect the relay position.
  • FIG. 3 shows the terminal socket in relation to the illustration in Fig. 1 rotated position overlooking the therein eino or einitzende contact bridge 17 without coupling rod 18th
  • Fig. 4 shows the contact bridge 17 in opposite Fig. 3 turn rotated position facing the two contact elements 34.
  • the in Fig. 4 left contact element 34 forms with the corresponding mating contact 33 a first contact pair, while that in FIG. 4 right contact element 34 forms a second contact pair with the corresponding mating contact 33.
  • the contact element 34 of the first contact pair has a convexly curved contact region 34a, which extends in the longitudinal direction 35 of the contact bridge 17.
  • This bulged (convex) contact region 34a is formed on both sides of the bulged contact region 34a, for example, by corresponding, secant-like, grinding surfaces 34b, viewed transversely to the longitudinal direction 35.
  • the shape of the bulged contact region 34a is designed such that in its central region and thus in the central region of the contact surface 36 of the contact element 34, a locally limited, suitably practically punctiform application or contact point 37 is formed.
  • the contact element 34 of the second contact pair has a vaulted (concave) contact region 34c which likewise extends in the longitudinal direction 35 of the contact bridge 17.
  • a vaulted (concave) contact region 34c which likewise extends in the longitudinal direction 35 of the contact bridge 17.
  • raised contact surface regions 34d are formed on both sides of this contact region 34c, for example again by suitable grinding technology.
  • the contact surface regions 34d in turn preferably form centrally or centrally raised or exposed abutment or abutment points 38, 39, which, like the defined bearing point 37 of the contact element 34 of the first contact pair, are indicated by a small circle for illustration purposes.
  • the contact elements 34 thus form a total contact bridge side with the three support points 37, 38, 39 a defined three-point support or three-point system with the two bolt-side mating contacts 33.
  • Fig. 6 shows the contact-bridge-side contact element 34 of the first contact pair with its convexly curved to form the defined support point 27 contact region 34a
  • Fig. 7 the contact element 34 of the second contact pair with its under the formation of the other two defined support points 38 and 39 vaulted contact area 34c shows.
  • the contact elements 34 and the mating contacts or mating contact elements 33 are designed rivet-like.
  • the mating contacts 33 have a contact surface head 33a and a joint 33b.
  • the bridge-side contact elements 34 also have a joining shank 34e and a contact surface head 34f.
  • the mating contacts 33 are joined via their Füpartye 33 b with the respective terminal pin 10 and thus firmly connected to this.
  • the contact elements 34 are joined via the Fü proceedingse 34e with the contact bridge 17 and thus firmly connected to this.
  • the formation of the bulged contact region 34a performs according to Fig. 9 to the fact that in the central region of the contact surface 36 of the contact element 34, a locally limited, punctiform Auf- or contact point 37 is formed.
  • the contact element 34 of the second contact pair has recognizably the convex (concave) contact region 34c, whereby the raised contact surface regions 34d are formed on both sides of the contact region 34c. These contact surface areas 34d form the exposed abutment points 38, 39.

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Electromagnets (AREA)
  • Switch Cases, Indication, And Locking (AREA)
  • Current-Collector Devices For Electrically Propelled Vehicles (AREA)
  • Connection Or Junction Boxes (AREA)
EP16162958.9A 2015-04-22 2016-03-30 Relais de puissance pour un vehicule automobile Active EP3086351B1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PL16162958T PL3086351T3 (pl) 2015-04-22 2016-03-30 Przekaźnik mocy dla pojazdu

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102015207360 2015-04-22

Publications (2)

Publication Number Publication Date
EP3086351A1 true EP3086351A1 (fr) 2016-10-26
EP3086351B1 EP3086351B1 (fr) 2017-08-30

Family

ID=55642302

Family Applications (1)

Application Number Title Priority Date Filing Date
EP16162958.9A Active EP3086351B1 (fr) 2015-04-22 2016-03-30 Relais de puissance pour un vehicule automobile

Country Status (5)

Country Link
US (1) US9728360B2 (fr)
EP (1) EP3086351B1 (fr)
CN (1) CN106067406B (fr)
HU (1) HUE035440T2 (fr)
PL (1) PL3086351T3 (fr)

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DE102016107127B4 (de) * 2016-01-29 2025-12-18 Tdk Electronics Ag Relais
US10031559B1 (en) * 2016-09-19 2018-07-24 Apple Inc. Switchable magnetic array
JP6599030B2 (ja) * 2017-07-26 2019-10-30 三菱電機株式会社 開閉器
CN108172472B (zh) * 2017-12-29 2020-01-17 合肥和旭继电科技有限公司 一种传动平稳的大功率继电器
WO2019154855A1 (fr) * 2018-02-07 2019-08-15 Tdk Electronics Ag Dispositif commutateur destiné à commuter une charge électrique
DE102018133419A1 (de) * 2018-12-21 2020-06-25 Johnson Electric Germany GmbH & Co. KG Festkontaktstückträger für ein Relais und Verfahren zur Einstellung eines Kontaktabstandes
DE102019106832B4 (de) 2019-03-18 2022-08-18 Tdk Electronics Ag Kontaktanordnung für eine Schaltvorrichtung und Schaltvorrichtung
JP7355660B2 (ja) * 2020-01-22 2023-10-03 株式会社Soken 電磁リレー
KR102945400B1 (ko) * 2022-04-19 2026-03-27 샤먼 홍파 일렉트릭 파워 컨트롤즈 컴퍼니 리미티드 릴레이

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Publication number Priority date Publication date Assignee Title
GB1202713A (en) * 1967-02-14 1970-08-19 Lucas Industries Ltd Switches for use with electrical starter motors, for internal combustion engines
DE102010018738A1 (de) 2010-04-29 2011-11-03 Kissling Elektrotechnik Gmbh Bistabiles Relais
US20130021121A1 (en) * 2011-07-18 2013-01-24 Anden Co., Ltd. Relay

Also Published As

Publication number Publication date
PL3086351T3 (pl) 2018-02-28
HUE035440T2 (en) 2018-05-02
EP3086351B1 (fr) 2017-08-30
US9728360B2 (en) 2017-08-08
CN106067406A (zh) 2016-11-02
CN106067406B (zh) 2019-05-14
US20160314925A1 (en) 2016-10-27

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