CN1031000A - High sensitive electromagnetic trip device and manufacture method thereof - Google Patents
High sensitive electromagnetic trip device and manufacture method thereof Download PDFInfo
- Publication number
- CN1031000A CN1031000A CN 88104668 CN88104668A CN1031000A CN 1031000 A CN1031000 A CN 1031000A CN 88104668 CN88104668 CN 88104668 CN 88104668 A CN88104668 A CN 88104668A CN 1031000 A CN1031000 A CN 1031000A
- Authority
- CN
- China
- Prior art keywords
- micron
- polar surfaces
- brake lining
- armature
- less
- 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
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
- H01H50/163—Details concerning air-gaps, e.g. anti-remanence, damping, anti-corrosion
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/24—Electromagnetic mechanisms
- H01H71/32—Electromagnetic mechanisms having permanently magnetised part
- H01H71/327—Manufacturing or calibrating methods, e.g. air gap treatments
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Physical Vapour Deposition (AREA)
- Braking Arrangements (AREA)
- Electromagnets (AREA)
- Contacts (AREA)
- Manufacture Of Switches (AREA)
Abstract
Handle the extremely surface 10 of armature 1 of electromagnetic trip device and the polar surfaces 14 of brake lining 8 with identical method.Surface roughness coefficient Ra is more than or equal to 0.03 micron, and less than 0.5 micron, thickness covers above-mentioned surface less than 1 micron corrosion protective layers.
Description
The present invention relates to a kind of electromagnetic trip device, it is specially adapted to the floor drain Protection switch.This device has a magnetic circuit by the permanent magnet polarization, and has a control coil, described magnetic circuit is made with iron-nickel alloy, comprise a fixing armature and a movable brake lining, this armature and brake lining respectively have a polar surfaces, and these two polar surfaces just lump together when brake lining is positioned at the position of being inhaled mutually by armature.
Said this tripgear must be reliable, and can not be subjected to the influence of environmental condition according to threshold value action, particularly be not subjected to damp and hot influence, damp and hot meeting causes corrosion between iron and nickel, this corrosion can form ferriferous oxide and the iron hydroxide that causes causing fault trip or brake lining viscous.The high sensitivity tripgear generally is installed in protection people's the circuit-breaker or floor drain switch, does not allow any fault.
The someone proposes, and with protection coat, especially synthetic material or noble-metal coated layer, applies polar surfaces.But these layers or too thick, thereby reduced the sensitivity of tripgear; Or too thin, under the high situation of humidity, between matrix and coat, or can produce galvano-cautery between the iron of matrix and the nickel.The magnetic surface that rubbing down is crossed generally is used for reducing as much as possible the air gap between complete smooth surface, still, damp and hot protection is not only improved, and decreases on the contrary.Air gap hour, polar surfaces just by some surfaces or zone in some local contact.These local ventilative contacts are relatively poor, and when water vapour in these places condensed, just stagnated exactly by water for its result, and help to form corrosion.This corrosion is diffused into the whole distract, causes relaying viscous.
File FR-A-2,412,159 disclose a kind of production method of high sensitivity tripgear, and wherein at least one polar surfaces is coated with a thickness less than 1 micron coating, and this coating produces lubricant effect, and prevents any because the wearing and tearing that friction causes.This coating has covered small roughness and has made it no longer to be damaged, but this coating can not prevent corrosion.
Purpose of the present invention just provides a kind of highly sensitive tripgear, and it can carry out correct operation in hygrothermal environment.
Method of the present invention is characterized in that, the extremely surface of the polar surfaces of armature and brake lining used the same method carry out surface finish, to obtain more than or equal to 0.03 micron, less than 0.5 micron coefficient of roughness Ra(Ra is the mid line average height of flank profil up and down), guarantee to rely on two spikes between the surface to realize a contact with this; Described polar surfaces covers with the corrosion protective layers of thickness less than 1 micron.
(be mechanical treatment this moment by same polishing for the polar surfaces of armature and the polar surfaces of brake lining, as: with suitable milling tool or material), it is the surface state of 0.03≤Ra≤0.5 micron that this polishing provides the coefficient of roughness, add thickness near or less than 1 micron protection coverage, this cover layer maintains the spike and the flank profil of 0.03≤Ra≤0.5 micron.Owing to rely on surface peek (rather than relying on the zone) between two surfaces, to form the some contact on the one hand; On the other hand, have initiation that prevents to be easy to the local corrosion that takes place at the contact point place of two polar surfaces or the protection coverage that stretches, so tripgear of the present invention has protective preferably.Guaranteeing the highly sensitive while, maintain small air gap.
Protection coverage can obtain with different materials and different modes.In any case it must approach, evenly, pore-free, smooth, have a good adhesion property.
According to the first embodiment of the present invention, polar surfaces is coated with the nickel oxide material, this material can utilize electrolysis to control light and obtain, this electrolysis is controlled photoconduction and is caused the surface nickel enrichment, and oxidation in air, nickel oxide also can utilize physics or chemical vacuum deposition process to obtain, and deposition thickness is less than or equal to 1 micron nickel, uses with the quadrat method oxidation again.
Overcoat can be nitride (particularly titanium nitride), carbide, boride, amorphous carbon or belong to I B, IV B in the periodic table of elements, VI B and a kind of metal of V III family (particularly chromium and titanium).Deposit is with standard physical or chemical vacuum method, and these methods provide level and smooth, the extremely thin deposit with uniform thickness (between 0.2 to 0.9 micron for well).Chromium and titanium nitride are particularly suitable for.According to the present invention, the maximum single degree of depth Rmax of roughness is less than 6 microns, and to avoid producing too point and too steep spike, too the sidepiece of sharp and too steep spike can not be adequately protected, and its peak coverage thing is easy to break.
The invention still further relates to the high sensitivity tripgear of making as stated above.
Other advantage and characteristics will become apparent, understand by the following description of this invention.Below describe only as non-limiting example, and shown in the drawings; Wherein:
Fig. 1 and Fig. 2 are the schematic diagrames of tripgear of the present invention, and they show absorption position and trip position respectively;
Fig. 3 is the view of extremely surface through amplifying in the contact;
Fig. 4 represents extremely surperficial flank profil.
Though the following description of the present invention is in conjunction with French Patent (FRP) NO.2, disclosed tripgear carries out in 520,164, and the present invention obviously can be used for the tripgear of different structure, French Patent (FRP) NO.2 particularly, the sort of tripgear of describing in 261,614.
In Fig. 1 and Fig. 2, electromagnetic trip device comprises a U-shaped armature keeper 1 and the permanent magnet 2 made by Fe-Ni alloy.Magnet 2 is the parallelepiped bar shaped, places between the component 3 and 4 of armature 1, and its magnetic pole 5 and 6 has a substrate 7 with U-shaped armature 1 to join.
The surface of position of the movable brake lining of being made by Fe-Ni alloy 8 is facing to the magnetic pole 6 of extreme 9,10 and magnet 2 of armature 1, and brake lining 8 can rotate around the edge 11 of the component 3 of armature 1.
Return spring 12 is offset to the rotation separation point position of armature 1 with brake lining 8, wherein, separates with polar surfaces 10 facing to the polar surfaces 14 of the brake lining 8 of armature 1 polar surfaces 10.Brake lining 8 can be positioned at two stable equilbrium positions.On some positions (as shown in Figure 1), the magnetic flux 13 that is produced by permanent magnet 2 is pressed onto polar surfaces 14 on the polar surfaces 10 of armature 1.On the another one position (as shown in Figure 2), polar surfaces 14 is separated by the power and the polar surfaces 10 of spring 12.
Coil 6 is wrapped on the component 4 of armature 1, like this, just produces the magnetic line of force 15 opposite with permanent magnet magnetic force line 13 when electric current flows through coil in component 4.When the magnetic line of force 13 of magnet 2 was weakened by the magnetic line of force 15 of coil 16 or offsets, brake lining 8 just upwards lifted under the effect of spring 12, leaves the end 10 of component 4.
This tripgear and operation thereof are known for those skilled in the art.
According to the present invention, with same method the extremely surface 14 of brake lining 8 and the polar surfaces 10 of armature 1 are handled, reach to obtain having summit 18
Contact between the surface at the end 19, two surfaces 10,14 being achieved by summit 18 like that as shown in Figure 3.The polar surfaces of the polar surfaces 9 of armature and relevant brake lining 8 preferably stands same processing.Coefficient of roughness Ra(is the mid line average height of flank profil up and down according to standard NFE05-015) more than or equal to 0.03 micron, less than 0.5 micron.Just can obtain this roughness when polar surfaces 10,14 is carried out mechanical polishing, it can accurately be determined and repeatedly produce.Add the less overcoat of a layer thickness for polished surface 10,14, as one deck nickel oxide, nitride, carbide, boride, amorphous carbon or belong to I B, IV B in the periodic table of elements, VI B or a kind of metal of V III family.Nickel oxide layer can obtain by polar surfaces being carried out top layer nickel enrichment processing, has the nickel of small thickness (less than 1 micron) as deposit one deck.Nickel reoxidizes the nickel oxide that has chemical stability with formation.The enrichment of nickel can be controlled light by electrolysis and obtain, and light electrolytic iron is according to qualifications controlled in said electrolysis, and forms the surface that has only increased nickel content on the number atomic layer level thickness, and nickel is oxidation in air.
The deposit of nickel or other protective materials obtains by physics or chemical vacuum method (physical vapor deposition or chemical vapor deposition).These methods are that present technique field professional knows, and needn't describe here.Thickness is uniformly less than 1 micron overcoat, and it has formed and has prevented the potential barrier of corroding.Obtained good result with titanium or chromium nitride layer, but above-mentioned other material can be suitable for well also.It is important that two identical methods of polar surfaces 10,14 usefulness are handled.Under the situation of vacuum deposition, bed thickness is between 0.2 to 0.9 micron, and the amplitude peak Rmax of peak point is less than 6 microns.Fig. 4 shows the surface state of up-sizing.
Claims (10)
1, a kind of manufacture method that is specially adapted to the high sensitivity tripgear of floor drain Protection switch, described device has a magnetic circuit by permanent magnet (2) polarization, and has a control coil (16), described magnetic circuit is made by Fe-Ni alloy, and comprise fixed armature (1) and movable brake lining (8), fixed armature (1) and movable brake lining (8) respectively have a polar surfaces (10,14), described polar surfaces just lumps together when brake lining is in the position of being inhaled mutually by armature, it is characterized in that, the polar surfaces (10) of armature (1) and the polar surfaces (14) of brake lining (8) stand surface finish with identical method, to obtain more than or equal to 0.03 micron, less than 0.5 micron coefficient of roughness Ra (Ra is the mid line average height of flank profil up and down), thereby guarantee that the point that relies on peak point (18) to reach between two surfaces contacts, described polar surfaces (10,14) is coated with a layer thickness less than 1 micron corrosion protective layers.
2, the method for claim 1 is characterized in that described surface finish is the mechanical polishing to polar surfaces (10,14).
3, as the described method of claim 1 or 2, it is characterized in that the method that the overcoat covering is controlled light with the polar surfaces electrolysis obtains, this method causes the surface to realize the nickel enrichment, described nickel forms one deck nickel oxide overcoat through oxidation, its coefficient of roughness is more than or equal to 0.15 micron, less than 0.5 micron.
4, method as claimed in claim 1 or 2 is characterized in that the nickel oxide overcoat obtains with the method for vacuum deposition nickel.
5, method as claimed in claim 1 or 2, it is characterized in that the overcoat of thickness between 0.2 to 0.9 micron is with nitride, carbide, boride, amorphous carbon or belong to that a kind of metal of I B, IV B, VI B and V III family forms in the period of element classification, with physics or chemical method deposit in a vacuum, the maximum single degree of depth of roughness is less than 6 microns.
6, method as claimed in claim 5 is characterized in that overcoat is made of titanium nitride or chromium.
7, a kind of high inspiration degree tripgear that is specially adapted to the floor drain Protection switch, has a magnetic circuit by permanent magnet (2) polarization, and has a control coil (16), described magnetic circuit is made by Fe-Ni alloy, and comprise fixed armature (1) and movable brake lining (8), fixed armature (1) and movable brake lining (8) respectively have a polar surfaces (10,14), described polar surfaces just lumps together when brake lining is in the position of being inhaled mutually by armature, it is characterized in that, armature (1) is handled with identical method with the polar surfaces of brake lining (8), and have more than or equal to 0.03 micron, less than 0.5 micron coefficient of roughness Ra, also include a layer thickness less than 1 micron corrosion protection cover layer.
8, a kind of device as claimed in claim 7 is characterized in that protection coverage is a nickel oxide layer of controlling the method acquisition of light with electrolysis.
9, a kind of device as claimed in claim 7 is characterized in that protection coverage is nitride, carbide, boride, amorphous carbon or a kind of metal that belongs to I B, IV IV B, VI B and V III family in the period of element classification, and by vacuum deposition.
10, a kind of device as claimed in claim 9 is characterized in that protection coverage is titanium nitride or the chromium of thickness structure between 0.2 to 0.9 micron.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR8710720 | 1987-07-28 | ||
| FR8710720A FR2618941B1 (en) | 1987-07-28 | 1987-07-28 | HIGH SENSITIVITY ELECTROMAGNETIC TRIGGER AND MANUFACTURING METHOD THEREOF |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1031000A true CN1031000A (en) | 1989-02-08 |
| CN1022002C CN1022002C (en) | 1993-09-01 |
Family
ID=9353666
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88104668 Expired - Fee Related CN1022002C (en) | 1987-07-28 | 1988-07-27 | High sensitive electromagnetic trip device and their method for production |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0301935B1 (en) |
| JP (1) | JP2888838B2 (en) |
| CN (1) | CN1022002C (en) |
| DE (1) | DE3882099T2 (en) |
| ES (1) | ES2043867T3 (en) |
| FR (1) | FR2618941B1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097357A (en) * | 2014-05-09 | 2015-11-25 | 艾普伦 | Process for manufacturing a magnetic part of a differential relay comprising a surface treatment by shot-peening |
| CN113793785A (en) * | 2021-09-17 | 2021-12-14 | 乐清拓优电气有限公司 | Tripping device of residual current circuit breaker |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4118177C2 (en) * | 1991-06-03 | 1996-11-28 | Abb Patent Gmbh | Permanent magnetic residual current release |
| FR2697670B1 (en) * | 1992-11-04 | 1994-12-02 | Merlin Gerin | Relay constituting a mechanical actuator to trip a circuit breaker or a differential switch. |
| FR2754933B1 (en) * | 1996-10-23 | 1998-11-27 | Schneider Electric Sa | ELECTROMAGNETIC TRIGGER RELAY WITH AMORPHOUS CARBON COATING, AND METHOD FOR MANUFACTURING THE SAME |
| DE10222552A1 (en) * | 2000-11-23 | 2003-11-27 | Abb Patent Gmbh | Electrical trip switch mechanism comprises permanent magnets set into a coil former that respond to overload or short circuit current |
| DE10210826A1 (en) * | 2002-03-12 | 2003-09-25 | Abb Patent Gmbh | Tripping device for a residual current circuit breaker and method for its production |
| BRPI0600680C1 (en) * | 2006-02-24 | 2008-04-22 | Oscar Rolando Avila Cusicanqui | improvement introduced in electric switch |
| FR2943171B1 (en) * | 2009-03-10 | 2011-04-08 | Hager Electro Sas | ELECTROMAGNETIC ACTUATOR WITH FLOW DERIVATION |
| FR2988216B1 (en) * | 2012-03-16 | 2014-04-25 | Hager Electro Sas | ELECTROMAGNETIC ACTUATOR WITH CONTROLLED IMPEDANCE |
| DE102012102431B4 (en) * | 2012-03-21 | 2019-11-07 | Te Connectivity Germany Gmbh | Circuit breaker |
| DE102012009665B4 (en) * | 2012-05-12 | 2022-04-07 | Doepke Schaltgeräte GmbH | Electrical release relay for a switch, in particular for a circuit breaker for monitoring electrical networks |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1400286A (en) * | 1964-07-07 | 1965-05-21 | Siemens Ag | Retaining solenoid acting as a release in electrical devices |
| FR2261614A1 (en) * | 1974-02-14 | 1975-09-12 | Gardy Ste Francaise | High sensitivity mechanical relay or contact breaker - for use in differential switching circuits |
| DE2541392B2 (en) * | 1975-09-17 | 1977-09-29 | Philips Patentverwaltung GmbH, 20O0 Hamburg | METHOD OF MANUFACTURING AN ELECTROMAGNET WITH A MAGNETIC ARMOR |
| JPS5427362A (en) * | 1977-08-03 | 1979-03-01 | Hitachi Ltd | Semiconductor device |
| DE2755645B2 (en) * | 1977-12-14 | 1980-02-07 | Schutzapparate-Gesellschaft Paris + Co Mbh Kg, 5885 Schalksmuehle | Electromagnetic release, in particular holding magnet release for residual current circuit breakers |
| JPS56103821A (en) * | 1980-01-23 | 1981-08-19 | Omron Tateisi Electronics Co | Electric contact |
| JPS6168822A (en) * | 1984-09-11 | 1986-04-09 | 株式会社東芝 | Electromagnetic contactor |
| JPS61160850A (en) * | 1985-01-08 | 1986-07-21 | Matsushita Electric Ind Co Ltd | Optical disk |
-
1987
- 1987-07-28 FR FR8710720A patent/FR2618941B1/en not_active Expired - Fee Related
-
1988
- 1988-07-11 DE DE19883882099 patent/DE3882099T2/en not_active Expired - Fee Related
- 1988-07-11 EP EP19880401806 patent/EP0301935B1/en not_active Expired - Lifetime
- 1988-07-11 ES ES88401806T patent/ES2043867T3/en not_active Expired - Lifetime
- 1988-07-20 JP JP63181439A patent/JP2888838B2/en not_active Expired - Lifetime
- 1988-07-27 CN CN 88104668 patent/CN1022002C/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105097357A (en) * | 2014-05-09 | 2015-11-25 | 艾普伦 | Process for manufacturing a magnetic part of a differential relay comprising a surface treatment by shot-peening |
| CN105097357B (en) * | 2014-05-09 | 2019-12-24 | 艾普伦 | Process for manufacturing a magnetic component of a differential relay with surface treatment by shot peening |
| CN113793785A (en) * | 2021-09-17 | 2021-12-14 | 乐清拓优电气有限公司 | Tripping device of residual current circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| ES2043867T3 (en) | 1994-01-01 |
| JP2888838B2 (en) | 1999-05-10 |
| CN1022002C (en) | 1993-09-01 |
| EP0301935A1 (en) | 1989-02-01 |
| FR2618941B1 (en) | 1995-01-06 |
| JPH01117225A (en) | 1989-05-10 |
| DE3882099D1 (en) | 1993-08-05 |
| EP0301935B1 (en) | 1993-06-30 |
| DE3882099T2 (en) | 1994-01-05 |
| FR2618941A1 (en) | 1989-02-03 |
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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 | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CB02 | Change of applicant information |
Address after: France Cloth Dragon - burlin Library Applicant after: Schneider Electric SA Address before: Grenoble Applicant before: Merlin Gerin |
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| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: SCHNEIDER ELECTRIC SA TO: SCHNEIDER ELECTRIC INDUSTRIAL CO., LTD. |
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| CP01 | Change in the name or title of a patent holder |
Patentee after: Schneider Electric SA Patentee before: Schneider Electric SA |
|
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| OR01 | Other related matters | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |