CN105321777A - Switching device with reduced switching noise - Google Patents
Switching device with reduced switching noise Download PDFInfo
- Publication number
- CN105321777A CN105321777A CN201510400794.5A CN201510400794A CN105321777A CN 105321777 A CN105321777 A CN 105321777A CN 201510400794 A CN201510400794 A CN 201510400794A CN 105321777 A CN105321777 A CN 105321777A
- Authority
- CN
- China
- Prior art keywords
- coil
- yoke
- switchgear
- inner yoke
- armature
- 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
- 238000007667 floating Methods 0.000 claims abstract description 10
- 238000013016 damping Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000001133 acceleration Effects 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 230000005415 magnetization Effects 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000005325 percolation Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Electromagnets (AREA)
- Push-Button Switches (AREA)
Abstract
The invention relates to a switching device with an electromagnetic drive device which has a coil (10) having a coil body (11), a fixedly positioned yoke (12) and an armature (13) which can move relative to the fixedly positioned yoke (12), and a switch contact, wherein the switch contact can be closed and opened through the movement of the armature (13) along the axis. The switching device is characterized in that the coil body (11) supports an inner yoke (16) in a floating manner.
Description
Technical field
The present invention relates to a kind of switchgear, have: electromagnetic actuator device, this electromagnetic actuator device has with the coil of coil case, the yoke of stationary positioned and can relative to the armature of the yoke movement of stationary positioned; And switch contact, the contact of this switch contact switches on and off along moving of axis by armature.
Background technology
Such switchgear can design has DC magnet systems, the side-walls mounting permanent magnet wherein in the inside of framework, its moving direction transverse to armature magnetization and towards being equipped with the cover plate be fabricated from iron medially.The pole plate be connected with armature is arranged below this cover plate.The field wire of the strong boundling occurred at the narrow side place of coverage rate is closed with framework and make armature be subject to permanent magnet attraction together with pole plate through pole plate.This magnetic confining force be applied on armature can realize reducing the power of the back-moving spring usually bearing whole confining force.Coordination each other must guarantee enough impact strengths, thus switchgear, especially contactor can not be triggered due to the shock of stress when being equivalent to the acceleration of gravity of such as twice, i.e. switch unintentionally.Usually, in the contactor not having permanent magnet, impact strength is determined only by the spring force of back-moving spring.
If the coil of DC magnet systems is energized, what so depend on the coil that electric current percolation is crossed exceeds extremely many magnetic force, and pole plate is triggered by permanent magnet and moves when overcoming working gas gap until pole plate is resisted against anti-remanent magnetism plate together with armature.Due to in this position also referred to as " connection " position of the excitation of coil, the contact being such as arranged on contact carrier place contacts with fixed contact.
In such switchgear, there is following demand, always can connect larger power when given structural volume.Therefore, need higher contact force, now to control to become higher making current.At this, switching process must realize in the whole default working range of magnet exciting coil, namely realizes when the voltage preset.
In order to consider the contact force improved when more powerful, need to design electromagnetic actuator device more strongly.This causes the connection energy significantly improved also and then also can be discovered with the switch noise improved.Such as in the application of switchgear, switch noise can be interfering.
The reduction of switch noise such as realizes by reducing turn-on voltage by means of electronic circuit.Electronic circuit can be connected to and control between supply voltage and the coil of electromagnetic actuator device.In order to turn on-switch equipment, only the service voltage of so-called low pressure, i.e. minimum permission is applied on coil.Once the closing of contact of switch contact, then improve voltage, thus guarantee the high contact force of needs.The shortcoming of this measure is, increases the turn-on time of switchgear in disadvantageous mode.
Summary of the invention
Correspondingly, the object of the invention is to, propose a kind of switchgear with the switch noise of reduction, and can not adversely closing speed be affected.
According to the present invention, this object is realized by a kind of switchgear, has: electromagnetic actuator device, and this electromagnetic actuator device has with the coil of coil case, the yoke of stationary positioned and can relative to the armature of the yoke movement of stationary positioned; And switch contact, its contact switches on and off along moving of axis by armature.At this, the invention is characterized in, at coil case place, floating ground is supported with inner yoke.
Core of the present invention is, the inner yoke fixing rigidly up to now twelve Earthly Branches that preferably float on the moving direction of magnetic drive unit together with permanent magnet hold.By this floating support, reduce from switch contact, the energy be delivered to from pole plate inner yoke.Because the layout that this Impact energy is floated by this is captured, so reduce the noise now occurred equally.The switch noise of magnet system is reduced at this.
Can propose in particularly advantageous design of the present invention, in inner yoke, place is supported with permanent magnet, and inner yoke motion followed by this permanent magnet, so to catch the energy of mobile parts and to reduce switch noise thus.Permanent magnet is also floating ground supporting therefore.Be delivered in the switching process in inner yoke from pole plate, the supporting that energy is floated by this weakens.Absorb Impact energy by the layout of floating, thus reduce the noise now occurred.
Other scheme can be there is in special design of the present invention, at coil case place, above inner yoke, be furnished with gap, to expand the moving range of inner yoke.Can construct particularly by milling in the gap at coil case place.Inner yoke is no longer rigidly fixed between coil case and pole plate thus, but has certain moving range.
Can propose according to the present invention, switchgear is contactor.
In addition can propose, contactor has DC magnet systems.
Have with the coil of coil case, the yoke of locating regularly according to the electromagnetic actuator device of switchgear of the present invention, with can relative to the armature of the yoke movement of fixing location, yoke surrounds coil and can preferably be bearing in the housing of switchgear to damping, armature connected coil and on coil with below there is pole plate.The inner yoke of floating ground supporting is furnished with at coil place.Between inner yoke and yoke, be furnished with permanent magnet, its preferably together with inner yoke floating ground supporting and there is certain moving range, this moving range is constructed by the gap at coil case place.Directly formed by inner yoke at this in the gap at coil case place.
The invention is characterized in, switchgear according to the present invention has the solution for making switch noise minimized factory aspect, and can not increase the turn-on time of switchgear at this.At this, by factory presented here solution, client need not adopt distinctive measure.The element reducing switch noise be configured to equipment intrinsic and can forward to there is direct current magnet drive unit complete structural series on.Additional advantage of the present invention and improvement project is further described below according to embodiment and accompanying drawing.
Accompanying drawing explanation
At this illustrate:
Fig. 1 show in a schematic the electromagnetic actuator device of switchgear of the prior art;
Fig. 2 show in a schematic the electromagnetic actuator device according to switchgear of the present invention.
Embodiment
Fig. 1 shows the electromagnetic actuator device of switchgear of the prior art.This electromagnetic actuator device has: with the coil 1 of coil case 2; The yoke 3 of stationary positioned, it surrounds coil 1 and can preferably be bearing in the housing of switchgear to damping; And can relative to the armature 4 of yoke 3 movement of stationary positioned, it connected coil 1 and above and below coil 1, had pole plate 5,6.The inner yoke 7 fixing by grab is arranged in coil 1 place.Fixing permanent magnet 8 is furnished with equally between inner yoke 7 and yoke 3.
Fig. 2 shows the electromagnetic actuator device according to switchgear of the present invention.Electromagnetic actuator device according to switchgear of the present invention has: with the coil 10 of coil case 11; The yoke 12 of fixing location, it surrounds coil 10 and can preferably be arranged in the housing of switchgear to damping; And can relative to the armature 13 of yoke 12 movement of stationary positioned, it connected coil 10 and above and below coil 10, had pole plate 14,15.The inner yoke 16 of floating ground supporting is furnished with at coil 10 place.Between inner yoke 16 and yoke 12, be furnished with permanent magnet 17, its preferably together with inner yoke 16 floating ground support and there is certain moving range, this moving range is by constructing in the gap 18 at coil case 11 place.Directly formed by inner yoke 16 at this in the gap 18 at coil case 11 place.
The invention is characterized in, switchgear according to the present invention has the solution for making switch noise minimized factory aspect, and can not increase the turn-on time of switchgear at this.At this, by the factory's solution introduced at this, client need not adopt distinctive measure.The element reducing switch noise be configured to equipment intrinsic and can forward to there is direct current magnet drive unit complete structural series on.
List of reference characters
1 coil
2 coil cases
3 yokes
4 armature
5 pole plates
6 pole plates
7 inner yokes
8 permanent magnets
10 coils
11 coil cases
12 yokes
13 armature
14 pole plates
15 pole plates
16 inner yokes
17 permanent magnets
18 gaps.
Claims (5)
1. a switchgear, have: electromagnetic actuator device, this electromagnetic actuator device has with the coil (10) of coil case (11), the yoke (12) of stationary positioned and can relative to the armature (13) of described yoke (12) movement of stationary positioned; And switch contact, the contact of this switch contact switches on and off along moving of axis by described armature (13), it is characterized in that, at described coil case (11) place, floating ground is supported with inner yoke (16).
2. switchgear according to claim 1, is characterized in that, permanent magnet (17) is bearing in described inner yoke (16) place, and described inner yoke (16) motion followed by this permanent magnet.
3. switchgear according to claim 1 and 2, it is characterized in that, the top being in described inner yoke (16) at described coil case (11) is furnished with gap (18), to expand the moving range of described inner yoke (16).
4. switchgear according to any one of claim 1 to 3, is characterized in that, described switchgear is contactor.
5. switchgear according to claim 4, is characterized in that, described contactor has DC magnet systems.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102014214950.9A DE102014214950A1 (en) | 2014-07-30 | 2014-07-30 | Switching device with reduced switching noise |
| DE102014214950.9 | 2014-07-30 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105321777A true CN105321777A (en) | 2016-02-10 |
| CN105321777B CN105321777B (en) | 2017-11-17 |
Family
ID=55079455
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510400794.5A Expired - Fee Related CN105321777B (en) | 2014-07-30 | 2015-07-09 | The switchgear of switch noise with reduction |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN105321777B (en) |
| DE (1) | DE102014214950A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102017123203B4 (en) * | 2017-10-06 | 2021-03-18 | Abb Schweiz Ag | Switching device with switching mechanism and electromagnetic actuator |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080048808A1 (en) * | 2006-08-28 | 2008-02-28 | Omron Corporation | Silent electromagnetic relay |
| CN103620209A (en) * | 2011-06-30 | 2014-03-05 | 罗伯特·博世有限公司 | Split armature relay |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE59601790D1 (en) * | 1995-10-12 | 1999-06-02 | Siemens Ag | MAGNETIC DAMPING ARRANGEMENT |
| JP2004068601A (en) * | 2002-08-01 | 2004-03-04 | Hitachi Ltd | Solenoid and startar using the same |
| DE602006002209D1 (en) * | 2005-03-28 | 2008-09-25 | Matsushita Electric Works Ltd | CONTACT DEVICE |
| JP5664432B2 (en) * | 2010-06-21 | 2015-02-04 | 日産自動車株式会社 | Electromagnetic relay |
| US9168852B2 (en) * | 2012-12-03 | 2015-10-27 | Ford Global Technologies, Llc | Climate comfort seat assembly |
-
2014
- 2014-07-30 DE DE102014214950.9A patent/DE102014214950A1/en not_active Withdrawn
-
2015
- 2015-07-09 CN CN201510400794.5A patent/CN105321777B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20080048808A1 (en) * | 2006-08-28 | 2008-02-28 | Omron Corporation | Silent electromagnetic relay |
| CN103620209A (en) * | 2011-06-30 | 2014-03-05 | 罗伯特·博世有限公司 | Split armature relay |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105321777B (en) | 2017-11-17 |
| DE102014214950A1 (en) | 2016-02-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171117 |
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| CF01 | Termination of patent right due to non-payment of annual fee |