EP1264325A1 - Electromagnetic switching device, in particular a contactor - Google Patents
Electromagnetic switching device, in particular a contactorInfo
- Publication number
- EP1264325A1 EP1264325A1 EP01923510A EP01923510A EP1264325A1 EP 1264325 A1 EP1264325 A1 EP 1264325A1 EP 01923510 A EP01923510 A EP 01923510A EP 01923510 A EP01923510 A EP 01923510A EP 1264325 A1 EP1264325 A1 EP 1264325A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- switching device
- housing part
- electromagnetic switching
- switch
- contour
- 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
- 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
-
- 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
- H01H50/041—Details concerning assembly of relays
- H01H50/045—Details particular to contactors
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
- H01H47/02—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay
- H01H47/04—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current
- H01H47/06—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current for modifying the operation of the relay for holding armature in attracted position, e.g. when initial energising circuit is interrupted; for maintaining armature in attracted position, e.g. with reduced energising current by changing number of serially-connected turns or windings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/02—Bases; Casings; Covers
- H01H50/021—Bases; Casings; Covers structurally combining a relay and an electronic component, e.g. varistor, RC circuit
-
- 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
- H01H50/041—Details concerning assembly of relays
- H01H50/042—Different parts are assembled by insertion without extra mounting facilities like screws, in an isolated mounting part, e.g. stack mounting on a coil-support
Definitions
- Electromagnetic switching device especially a contactor
- the invention relates to an electromagnetic switching device, in particular a contactor, with a plug-in unit which can be inserted into a switching device housing and which comprises a coil former for a coil, as is known, for example, from WO 95/12891.
- Such a plug-in unit also referred to as a coil assembly, consists at least of a coil former that carries one or more copper windings and a connection area via which the winding is supplied with an external voltage.
- the coil assembly forms the drive for the electromagnetic switching device.
- a special embodiment of such a drive is, for example, the so-called economy drive.
- a relatively high switch-on or tightening energy is used
- Switching of the switching device is required to switch back to a significantly lower holding energy at a predetermined point in time. This has the advantage that the energy consumption of the switching device is reduced in the switched-on state and, accordingly, the power loss and the associated heat radiation is reduced.
- This pull-in winding is now interrupted by means of a mechanical switching element, so that only the holding winding has current flowing through it.
- the mechanical switching element is actuated via a suitable trigger element which is moved by the moving unit of the switching device and actuates the switching element at a predetermined point in time during the switching-on process.
- the of the the distance traveled (armature and contact slide) between the switch-off time of the pull-in winding and its end position (stop position) is overcome by the kinetic energy of the moving unit of the switching device.
- the aim should be to place the switching point as far as possible in front of the stop position. This requires an exact position of the switching point to ensure that the stop position is reached.
- the invention is based on the object of specifying an electromagnetic switching device which, due to its construction, enables the smallest possible tolerance range for the switching point of an electrical switch installed in the switching device housing for the implementation of a mechanical economy circuit.
- the electromagnetic switching device according to the invention in particular a contactor, contains a switching device housing and a plug-in unit that can be inserted therein, which has a coil former for a coil and a bearing mounted on a housing part of the plug-in unit Tripping element for mechanically actuating the switching element of an electrical switch for an economy circuit, which is arranged on a slot in the slide-in unit and is housing part separate support structure is mounted and rests with a support contour on a bearing contour of the housing part.
- the switch provided for realizing the economy circuit is positioned in a fixed position with respect to a reference surface in the same housing part in which the trigger element is also mounted, although the housing part and the support structure are two separate components that are first be put together during the manufacture of the plug-in unit.
- the position of the switch relative to the trigger element is independent of the tolerances with which it is preassembled on the support structure, preferably a printed circuit board, or with which it is arranged in the insertion unit relative to the housing part.
- the switching path tolerances are reduced to a minimum.
- the force exerted on the switch when the switching element is actuated is conducted via the support contour to the bearing contour.
- This measure ensures that the switch remains in a fixed reference position of the housing part and thus to the trigger element even when actuated.
- the electrical switch is mounted on a printed circuit board arranged essentially parallel to the outer wall of the housing part and projects through it with at least one part of its housing forming the support contour.
- the bearing contour is preferably arranged on the inside of the outer wall, which has a stiffening structure in particular in this area. This largely prevents deformation of the housing part when the switching element is actuated.
- a trough is formed on the housing part, on which the switch is arranged and fixed in position by means of a casting compound. This is particularly easy to achieve in terms of production technology.
- the potting compound also serves to protect the electrical components arranged in addition to the switch on the printed circuit board.
- Two lateral bearing arms for mounting the trigger element are preferably arranged on the housing part. This enables the triggering element to be supported in a stable and precise position.
- the coil former is provided on one of its end faces with at least one connecting arm with which it is mounted on the housing part, the other end face in particular having at least one latching hook which latches into a corresponding recess on the housing part. This ensures a stable mounting of the coil body on the housing part.
- the recess is arranged in the bearing arm for the trigger element. This enables a particularly simple structural design, since the bearing arms take on both the function of mounting the trigger element and the function of fixing the coil body.
- FIG. 1 shows an electromagnetic switching device according to the invention with an inserted plug-in unit in a schematic overall view
- FIG. 2 shows the coil body of the plug-in unit with the printed circuit board accommodating the electrical switch
- 3 shows the housing part for mounting the bobbin
- FIG. 4 shows the plug-in unit with the bobbin pushed into the housing part
- FIG. 5 shows the plug-in unit with the trigger element mounted in the housing part, also in a perspective view
- FIG. 6 shows a cross section through the plug-in unit
- FIG. 7 shows a further advantageous embodiment of the invention with a coil former mounted on both end faces on the housing part.
- an electromagnetic switching device in the example a contactor, comprises a switching device housing 2, into which an insert unit 4 (coil assembly) is inserted.
- the insert unit 4 is provided on the housing cover side with a connection area 6, in which the connection contact elements for the coil winding of a coil for the insert unit 4 are arranged.
- a connecting area 8 for the switching contacts of the electromagnetic switching device is also shown in broken lines in the FIG.
- an end face 10 of a bobbin 12 is provided with two connecting arms 14 which form the legs of a U, the base of which is formed by a longitudinal edge 16 of the end frame 18 of the bobbin 12. At least one of the connecting arms 14 is provided with a lateral slot 20 for guiding the ends of the coil winding, which is not shown in the FIG.
- a support structure in the exemplary embodiment a printed circuit board 22, is arranged on the free ends of the connecting arms 14 and supports an electrical switch 24 and further electronic components 25 required to implement an economy circuit.
- the electrical switch 24 is pre-assembled on the support structure.
- the circuit board 22 is provided with contact pins (not shown in the FIG) to which the ends of the coil winding are soldered. From the printed circuit board 22, connection conductors 26 lead to connection contacts 28 for the control voltage brought to the outside of the switching device to actuate it.
- the switch 24 has a switching element 30 on its flat side facing away from the printed circuit board 22, the axial movement of which causes the switch 24 to be actuated mechanically.
- a housing part 40 provided for receiving the coil former and the printed circuit board 22 is provided with two lateral bearing arms 42, each of which is provided on its inside with guide elements 44 which serve to receive the coil former to be pushed onto the housing part 40 (FIG. 2).
- the housing part 40 also serves as a cover and is therefore part of the switchgear housing (FIG. 2) when the completely assembled withdrawable unit 4 (FIG. 1) is positioned in the switchgear.
- the housing part 40 is provided with side walls 46 which extend into the interior of the plug-in unit and together with the cover side form a trough 48 for receiving the printed circuit board 22 (FIG. 2).
- a support cylinder 50 is integrally formed on the bottom of the tub 48.
- Cross struts 52 formed on the bottom open into the outer jacket of the support cylinder 50 and at the same time form a stiffening structure for the housing part 40 consisting of an injection molded plastic part in the region of the support cylinder 50.
- the stiffening structure formed from the support cylinder 50 and the cross struts 52 is located in a depression in the base of the trough 48.
- FIG. 4 shows the plug-in unit 4 with the coil body 12 pushed into the housing part 40.
- the printed circuit board 22 is mounted in the tub 48.
- the switch 24 is located above the stiffening structure which is no longer visible in the FIG Support cylinder 50 (FIG 3) is aligned with the longitudinal axis of the switching element 30, ie with the direction of the force exerted thereon when actuated.
- the trigger element 60 is pivotably supported by a shaft 62 in bearing eyes 64 of the bearing arms 14.
- a trigger lever 66 is fixed on the shaft 62 and actuates the switching element 30 of the switch 24 when the shaft 62 is pivoted by the armature of the switching device, which is not shown in the FIG.
- the switch 24 has a bearing journal 68 with which it is guided through the printed circuit board 22.
- the bearing journal 68 is essentially hollow cylindrical and has a longitudinal slot which separates this hollow cylinder into two half shells. This facilitates insertion of the bearing journal 68 into a corresponding bore in the printed circuit board 22.
- the switch 24 is locked on the printed circuit board 22 by a taper on the circumference of the bearing pin 68, so that its assembly is facilitated.
- the end face of the bearing journal 68 forms a support contour 70 which is supported on the end face of the support cylinder 50 forming a contact contour 72, of which only the end edge can be seen in the FIG.
- the circuit board 22 is inserted with the preassembled switch 24 and parallel to the outer wall 73 of the housing part 40 into the trough 48 until the support contour 70 of the switch 24 rests on the bearing contour 72 of the housing part 40.
- the switch 24 is then fixed in its position relative to the housing part 40 regardless of possible position tolerances on the printed circuit board 22.
- the trough 48 is filled with a potting compound 74, so that the switch 24 is fixed in the desired position relative to the housing part 40.
- the potting compound 74 also serves to protect the on the circuit board further electronic components 25 arranged to implement the economy circuit.
- the switch 24 is brought into a fixed and predetermined spatial position relative to the housing part 40 and thus also to the trigger element 66 which is pivotably arranged directly on the housing part 40, although it is on a support structure separate from the housing part 40, in the exemplary embodiment the printed circuit board 22. is pre-assembled.
- the tolerances with which the switch is arranged on the support structure and with which it is installed in the housing part 40 have practically no influence on the switching path tolerances. These are therefore reduced to a minimum and are independent of the installation position of the switch 24 on the printed circuit board 22 and the installation position of the printed circuit board 22 in the trough 48.
- the force F exerted on the switching element 30 by the release lever 66 acts perpendicular to the support contour 70 and is introduced via this parallel contact contour 72, so that the switch 24 remains in a stable position relative to the housing part 40 and thus to the release element 60 even when actuated.
- the connecting arms 14 of the bobbin 12 on the housing part 40 are inserted into guides 80, which lie opposite the bearing arms 42 for the pivotable mounting of the trigger element 60.
- a latching hook 84 is arranged in the corner regions facing the housing part 40, which engages in a recess 86 at the free end of the bearing arm 42 and produces a latching connection.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Switch Cases, Indication, And Locking (AREA)
- Breakers (AREA)
- Mechanisms For Operating Contacts (AREA)
- Push-Button Switches (AREA)
Abstract
Description
Claims
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10013314A DE10013314C2 (en) | 2000-03-17 | 2000-03-17 | Electromagnetic switching device, especially a contactor |
DE10013314 | 2000-03-17 | ||
PCT/DE2001/000926 WO2001069625A1 (en) | 2000-03-17 | 2001-03-12 | Electromagnetic switching device, in particular a contactor |
Publications (2)
Publication Number | Publication Date |
---|---|
EP1264325A1 true EP1264325A1 (en) | 2002-12-11 |
EP1264325B1 EP1264325B1 (en) | 2007-08-08 |
Family
ID=7635307
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP01923510A Expired - Lifetime EP1264325B1 (en) | 2000-03-17 | 2001-03-12 | Electromagnetic switching device, in particular a contactor |
Country Status (6)
Country | Link |
---|---|
US (1) | US6870450B2 (en) |
EP (1) | EP1264325B1 (en) |
JP (1) | JP2003527732A (en) |
CN (1) | CN1222971C (en) |
DE (2) | DE10013314C2 (en) |
WO (1) | WO2001069625A1 (en) |
Families Citing this family (11)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2854492B1 (en) * | 2003-04-29 | 2008-10-17 | Schneider Electric Ind Sas | CONTROL DEVICE HYSTERESIS |
US7061352B2 (en) * | 2004-01-26 | 2006-06-13 | Tzo-Ing Lin | Noise-free low-power consumption wide voltage range DC and AC contactor and remote telephone control system using the same |
DE102004032373B4 (en) * | 2004-06-30 | 2018-05-24 | Seg Automotive Germany Gmbh | Electromagnetic auxiliary drive and device for displacing a drive element with such an electromagnetic auxiliary drive |
FR2908233B1 (en) * | 2006-11-02 | 2009-01-09 | Abb Entrelec Soc Par Actions S | CONTACTOR WITH MODULAR CONNECTION OF THE COIL |
EP1978536B1 (en) * | 2007-03-28 | 2012-11-28 | Siemens Aktiengesellschaft | Electromagnetic switching device |
FR2970379B1 (en) * | 2011-01-10 | 2013-02-15 | Abb France | CONNECTING DEVICE ADAPTABLE TO DIFFERENT CONTACTERS |
CN102623250B (en) * | 2012-04-19 | 2015-11-25 | 上海诺雅克电气有限公司 | A kind of electromagentic switching apparatus |
DE102012106108A1 (en) * | 2012-07-06 | 2014-01-09 | Tyco Electronics Amp Gmbh | Electrical switching device and method for switching selbiger with contact separation in case of backup |
CN107591287B (en) * | 2017-09-14 | 2020-07-31 | 浙江天正电气股份有限公司 | AC contactor |
JP7116293B2 (en) * | 2017-11-17 | 2022-08-10 | ミツミ電機株式会社 | Vibration actuators and portable devices |
CN113035649A (en) * | 2019-12-24 | 2021-06-25 | 施耐德电器工业公司 | Contactor reaches electrical control cabinet including it |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3815059A (en) * | 1972-12-01 | 1974-06-04 | Westinghouse Electric Corp | Circuit interrupter comprising electromagnetic opening means |
WO1984001661A1 (en) * | 1982-10-15 | 1984-04-26 | Mitsubishi Electric Corp | Electromagnetic contactor |
FR2570871B1 (en) * | 1984-09-27 | 1986-12-05 | Telemecanique Electrique | SWITCHING DEVICE WITH VARIABLE COMPOSITION REALIZABLE BY ASSEMBLING MODULAR ELEMENTS |
US5040089A (en) * | 1986-11-26 | 1991-08-13 | Kabushiki Kaisha Toshiba | D.C. relay with power reducing function |
FR2655769B1 (en) | 1989-12-08 | 1994-03-04 | Telemecanique | ADAPTATION DEVICE FOR AUXILIARY CONTACTS BOX. |
US5258732A (en) * | 1990-08-02 | 1993-11-02 | Furlas Electric Co. | Overload relay |
SE9303637L (en) * | 1993-11-04 | 1995-05-05 | Asea Brown Boveri | Electromagnetically operated electric switch |
FR2737604B1 (en) * | 1995-08-04 | 1997-08-29 | Schneider Electric Sa | CONTACTOR APPARATUS HAVING A TWO-WINDING COIL |
US5606299A (en) * | 1995-11-14 | 1997-02-25 | Eaton Corporation | Modular surge suppressor |
JP3117074B2 (en) * | 1996-08-06 | 2000-12-11 | 富士電機株式会社 | Circuit breaker |
-
2000
- 2000-03-17 DE DE10013314A patent/DE10013314C2/en not_active Expired - Fee Related
-
2001
- 2001-03-12 DE DE50112826T patent/DE50112826D1/en not_active Expired - Lifetime
- 2001-03-12 JP JP2001567606A patent/JP2003527732A/en not_active Abandoned
- 2001-03-12 EP EP01923510A patent/EP1264325B1/en not_active Expired - Lifetime
- 2001-03-12 WO PCT/DE2001/000926 patent/WO2001069625A1/en active IP Right Grant
- 2001-03-12 CN CN01805831.0A patent/CN1222971C/en not_active Expired - Lifetime
- 2001-03-12 US US10/221,321 patent/US6870450B2/en not_active Expired - Fee Related
Non-Patent Citations (1)
Title |
---|
See references of WO0169625A1 * |
Also Published As
Publication number | Publication date |
---|---|
DE10013314C2 (en) | 2002-01-17 |
DE10013314A1 (en) | 2001-10-04 |
WO2001069625A1 (en) | 2001-09-20 |
DE50112826D1 (en) | 2007-09-20 |
JP2003527732A (en) | 2003-09-16 |
US6870450B2 (en) | 2005-03-22 |
CN1406389A (en) | 2003-03-26 |
EP1264325B1 (en) | 2007-08-08 |
CN1222971C (en) | 2005-10-12 |
US20030016105A1 (en) | 2003-01-23 |
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