WO2011012357A1 - Contactor with damping arrangement - Google Patents
Contactor with damping arrangement Download PDFInfo
- Publication number
- WO2011012357A1 WO2011012357A1 PCT/EP2010/057670 EP2010057670W WO2011012357A1 WO 2011012357 A1 WO2011012357 A1 WO 2011012357A1 EP 2010057670 W EP2010057670 W EP 2010057670W WO 2011012357 A1 WO2011012357 A1 WO 2011012357A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- bobbin
- yoke
- switching device
- damping
- coil
- Prior art date
Links
Classifications
-
- 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
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/36—Stationary parts of magnetic circuit, e.g. yoke
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/44—Magnetic coils or windings
-
- 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
Definitions
- the invention relates to a switching device, in particular a
- Contactor comprising a switching portion having the contact system, and a drive portion comprising an armature, a bobbin with spool and a yoke.
- Switchgear with AC drive unit has a very high switch-on speed when closing the magnet system.
- the armature bounces with the contact carrier on the yoke and the movable contact bridges of the off position on the fixed contacts in the on position. Due to the high impact speed of the armature can bounce back with the contact carrier and its movable contact bridges in the off position, which is referred to as so-called contact bounce. This creates arcs between the moving contacts and the fixed contacts, which have a negative effect on the mechanical and electrical life of a switching device.
- a magnetic damping arrangement is known from EP 0 855 084 B1, in which the yoke rests in a housing on a longitudinally over the yoke extending strip-shaped damping rubber part on the housing bottom wall and between a coil body and the yoke, a conical damping compression spring is arranged which presses the yoke in the direction of the housing base wall and damps the impact of the armature on the yoke by means of the spring force of the damping compression spring when closing the magnet system.
- EP 0 855 085 B1 discloses a magnetic damping arrangement in which the housing bottom is designed to oscillate.
- the yoke is mounted with the interposition of an insert rubber and the magnetic chamber bottom is formed with two support areas of different thickness, one soft and one relatively hard.
- the spring effect can be adapted to the required damping.
- a disadvantage of the prior art is that a damping of the
- Jochs which is based on the fact that between the yoke and Magnethuntêt an insert rubber is arranged, leads to a strong rebound when closing the magnet system, since the magnetic chamber bottom is very inflexible and stiff and a thin insert rubber in this respect only allows poor damping.
- the object of the present invention is to provide a switching device with a damping arrangement, which allows a much lower rebound when closing the magnet system.
- This object is achieved by a switching device having the features of patent claim 1.
- Advantageous embodiments and developments, which can be used individually or in combination with each other, are the subject of the dependent claims.
- the switching device in particular contactor, has a switching region, which has the contact system, and a drive region, which comprises an armature, a coil with coil body and a yoke.
- the invention is characterized in that the yoke is elastically supported by a damping element in the bobbin. It is provided that the bobbin completely surrounds the damping element.
- the damping element is preferably formed of rubber.
- the bobbin itself is mounted elastically in the magnetic chamber, so that a two-part damping arises, which is that on the one hand, the yoke is elastically mounted in the bobbin, and on the other hand, the bobbin itself elastic is stored.
- the bobbin is elastically supported by springs in the magnetic chamber.
- the bobbin is elastically mounted via plastic arms which serve as spring elements.
- the damping arrangement according to the invention is characterized in that the yoke is elastically supported by a damping element in the bobbin and the bobbin completely surrounds the damping element.
- a further elastic mounting of the entire bobbin is possible, so that the damping is divided into two damping arrangements.
- Fig.l in a perspective view of an electromagnetic switching device with a damping arrangement of the prior art
- FIG. 2 shows a front view of an electromagnetic switching device with damping arrangement according to the invention
- FIG. 3 is a perspective sectional view of the illustration of FIG. 2; FIG.
- Fig. 4 in a perspective view of another embodiment of the invention with an additional damping arrangement for the bobbin.
- FIG. 1 shows a switching device 1 with a damping arrangement 2 known from the prior art.
- Switching device 1 has a housing 3, which is constructed in two parts from a lower housing part 4 and a housing upper part 5.
- the lower housing part 4 is formed as a magnetic chamber 6, which has a magnetic chamber bottom 7 on its underside.
- the damping assembly 2 is arranged on the magnetic chamber bottom 7, the damping assembly 2 is arranged.
- a drive unit 8 consisting of a resting on the magnetic chamber bottom 7 yoke 9, arranged over the yoke 9 and a coil 10 disposed above the coil 10 arranged armature 11 is arranged.
- an electromagnetic switching device 12 is shown with a damping arrangement 13 according to the invention.
- the switching device 12 has a switching region 14 which has the contact system and is arranged above the drive region 15.
- the drive region 15 comprises a yoke 16, a coil 17 arranged above the yoke 16 and a coil 17 arranged above the yoke 16.
- Ie 17 movably arranged armature 19.
- the coil 17 has a coil winding 20 and a bobbin 21, which has a recess 22 below the coil winding 20.
- the damping arrangement 13 according to the invention which is completely enclosed by the bobbin 21 and is designed as a damping element 13a, preferably made of rubber, is located in the recess 22.
- FIG. 3 shows the illustration according to FIG. 2 in a perspective sectional view. Shown is essentially the drive region 15, which comprises the yoke 16, the coil 17 arranged above the yoke 16 and the armature 19 arranged movably above the coil 17.
- the coil 17 comprises the coil winding 20 and the bobbin 21, the lenwicklung 20 below the coil 20 has the recess.
- the damping arrangement 13 according to the invention, which is completely enclosed by the bobbin 21 and formed as a damping element, preferably made of rubber. 4
- the electromagnetic switching device 12 is shown with a further damping arrangement 23 according to the invention.
- the damping arrangement 23 supports the entire bobbin 21 elastically on the housing bottom 24 of the electromagnetic switching device 12.
- the damping arrangement 23 preferably comprises two bearing blocks 25, 26 which are arranged parallel to one another and support the bobbin 21 elastically on the magnetic chamber bottom.
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BR112012001816-7A BR112012001816B1 (en) | 2009-07-27 | 2010-06-02 | switching device |
CN201080033212.XA CN102473554B (en) | 2009-07-27 | 2010-06-02 | There is the catalyst of damping device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE102009034611.2A DE102009034611B4 (en) | 2009-07-27 | 2009-07-27 | Switching device with damping arrangement |
DE102009034611.2 | 2009-07-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011012357A1 true WO2011012357A1 (en) | 2011-02-03 |
Family
ID=42727442
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2010/057670 WO2011012357A1 (en) | 2009-07-27 | 2010-06-02 | Contactor with damping arrangement |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN102473554B (en) |
BR (1) | BR112012001816B1 (en) |
DE (1) | DE102009034611B4 (en) |
WO (1) | WO2011012357A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103377854A (en) * | 2012-04-24 | 2013-10-30 | 三菱电机株式会社 | Electromagnetic contactor |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102012201514A1 (en) | 2012-02-02 | 2013-08-08 | Siemens Aktiengesellschaft | Contactor for use in switched feeder line, has fixed bus bars connected to housing, and operating element for carrying current conductive bridging device that comprises fuse, where movable bus bars contact with fixed bus bars |
DE102013222495A1 (en) * | 2013-11-06 | 2015-05-07 | Robert Bosch Gmbh | protective arrangement |
CN103646824B (en) * | 2013-11-30 | 2015-12-16 | 德力西电气有限公司 | Electromagnetic System of Contactor |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB734099A (en) * | 1952-02-29 | 1955-07-27 | Licentia Gmbh | Electromagnetically actuated switching devices |
GB1369267A (en) * | 1973-01-11 | 1974-10-02 | Allen West Eac Ltd | Electric contactors |
DE7315936U (en) * | 1973-04-26 | 1974-10-10 | Siemens Ag | Arrangement for holding the non-switching magnetic part of an electromagnetic switching device |
FR2805390A1 (en) * | 2000-02-17 | 2001-08-24 | Chint Group Corp | ALTERNATING CURRENT SWITCH |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07182961A (en) * | 1993-12-22 | 1995-07-21 | Fuji Electric Co Ltd | Iron core holding structure for electromagnetic contactor |
CN1064174C (en) | 1995-10-12 | 2001-04-04 | 西门子公司 | Magnet damping apparatus |
EP0855085B1 (en) | 1995-10-12 | 1999-04-21 | Siemens Aktiengesellschaft | Housing for switchgears |
JP2004047141A (en) * | 2002-07-09 | 2004-02-12 | Fuji Electric Holdings Co Ltd | Electromagnetic contactor |
-
2009
- 2009-07-27 DE DE102009034611.2A patent/DE102009034611B4/en not_active Expired - Fee Related
-
2010
- 2010-06-02 CN CN201080033212.XA patent/CN102473554B/en not_active Expired - Fee Related
- 2010-06-02 WO PCT/EP2010/057670 patent/WO2011012357A1/en active Application Filing
- 2010-06-02 BR BR112012001816-7A patent/BR112012001816B1/en not_active IP Right Cessation
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB734099A (en) * | 1952-02-29 | 1955-07-27 | Licentia Gmbh | Electromagnetically actuated switching devices |
GB1369267A (en) * | 1973-01-11 | 1974-10-02 | Allen West Eac Ltd | Electric contactors |
DE7315936U (en) * | 1973-04-26 | 1974-10-10 | Siemens Ag | Arrangement for holding the non-switching magnetic part of an electromagnetic switching device |
FR2805390A1 (en) * | 2000-02-17 | 2001-08-24 | Chint Group Corp | ALTERNATING CURRENT SWITCH |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103377854A (en) * | 2012-04-24 | 2013-10-30 | 三菱电机株式会社 | Electromagnetic contactor |
Also Published As
Publication number | Publication date |
---|---|
CN102473554B (en) | 2016-10-19 |
CN102473554A (en) | 2012-05-23 |
BR112012001816A2 (en) | 2016-03-15 |
BR112012001816B1 (en) | 2019-11-05 |
DE102009034611A1 (en) | 2011-02-03 |
DE102009034611B4 (en) | 2019-10-02 |
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