AU2005225079A1 - Electromagnetic trip device and electrical protection apparatus - Google Patents
Electromagnetic trip device and electrical protection apparatus Download PDFInfo
- Publication number
- AU2005225079A1 AU2005225079A1 AU2005225079A AU2005225079A AU2005225079A1 AU 2005225079 A1 AU2005225079 A1 AU 2005225079A1 AU 2005225079 A AU2005225079 A AU 2005225079A AU 2005225079 A AU2005225079 A AU 2005225079A AU 2005225079 A1 AU2005225079 A1 AU 2005225079A1
- Authority
- AU
- Australia
- Prior art keywords
- trip device
- cradle
- armature
- mentioned
- foregoing
- 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
- 239000002184 metal Substances 0.000 claims description 8
- 229910052751 metal Inorganic materials 0.000 claims description 8
- 238000004804 winding Methods 0.000 claims description 4
- 230000004907 flux Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
-
- 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
- H01H71/321—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements
- H01H71/323—Electromagnetic mechanisms having permanently magnetised part characterised by the magnetic circuit or active magnetic elements with rotatable armature
-
- 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
- H01H71/325—Housings, assembly or disposition of different elements in the housing
- H01H71/326—Sealed housings
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
- Electromagnets (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
- Braking Arrangements (AREA)
- Aiming, Guidance, Guns With A Light Source, Armor, Camouflage, And Targets (AREA)
Description
P001 Section 29 Regulation 3.2(2)
AUSTRALIA
Patents Act 1990 COMPLETE SPECIFICATION STANDARD PATENT Application Number: Lodged: Invention Title: Electromagnetic trip device and electrical protection apparatus comprising same The following statement is a full description of this invention, including the best method of performing it known to us:
O
o ELECTROMAGNETIC TRIP DEVICE AND ELECTRICAL PROTECTION 0 APPARATUS COMPRISING SAME.
BACKGROUND OF THE INVENTION 0 The present invention relates to an electromagnetic trip device comprising a cradle It supporting a U-shaped armature the ends whereof form two polar surfaces operating in conjunction with a vane pivoting with respect to said armature, said vane being able to be moved onto said polar surfaces to close the magnetic circuit formed by the armature and vane, a trip coil mounted around a shell surrounding the magnetic circuit able to counteract the force of the magnet so as to move the vane, said trip device also comprising a resetting pin of the vane mounted sliding in a support.
Nowadays, the relay pin is mechanically and functionally connected to the vane of the relay by means of several parts, i.e. a case, a mounting plate, the armature, the coil shell or the articulation.
Trip devices of the above-mentioned kind are for example known such as those described in the Patents EP 0,829,895, EP 0,786,789, EP 0,643,410, and EP 4,110,660 in which the pin support is the case.
All these trip devices implement a large number of parts.
For the pin to be in a zone enabling optimum operation of the relay, the parts mentioned must comply with a large number of dimensional tolerances, which reduces the dependahility of the relay.
OBJECT OF THE INVENTION The present invention solves these problems and proposes an electromagnetic trip device, and an electrical protection apparatus comprising same presenting a reduced number of parts, resulting in an improved dependability.
For this purpose, the object of the present invention is to provide a trip device, this trip device being characterized in that the above-mentioned cradle comprises the abovementioned support of a pin.
tn 2 ri According to a particular feature the above-mentioned cradle comprises the above- O mentioned shell.
O
SAccording to another feature, the cradle comprises a part supporting the annature, which part is connected to the shell, said shell being connected to the pin support.
According to another feature, the shell of the coil comprises a core comprising a S longitudinal opening designed to receive one of the branches of the U of the annature.
According to another feature, the above-mentioned opening is delineated by two opposite t walls of the shell designed to operate in conjunction with two opposite surfaces of the above-mentioned branch of the armature.
According to another feature, the cradle comprises an element forming a spring attachment moulded with said cradle.
According to another feature, the cradle comprises cradle comprises catches connected via one of their ends to the winding of the above-mentioned coil.
According to another feature, the cradle comprises a means for positioning and securing the magnet.
According to another feature, the trip device in addition comprises a metal part welded onto the armature and comprising a spring attachment.
According to another feature, the above-mentioned magnet is welded onto the abovementioned metal part.
According to another feature, the above-mentioned metal part fornns an articulation stop of the vane.
According to another feature, this trip device comprises clipping means provided on tilhe cradle to perform removable fixing of the anrmature on the cradle.
According to another feature, the cradle comprises a wall forming a stop in translation of the pin.
According to another feature, the cradle comprises a part cooperating tightly with the opening of the case designed for passage of the pin.
According to another feature, the armature/cradle sub-assembly is mounted on a mounting plate cooperating tightly with a case.
It is a further object of the invention to provide an electrical protection apparatus such as a switch or circuit breaker comprising a trip device comprising the above-mentioned features taken either alone or in combination.
3 O BRIEF DESCRIPTION OF THE DRAWINGS But other advantages and features of the invention will become more clearly apparent from the following description which refers to the accompanying drawings given for example purposes only and in which: -Figure I is a side view of a trip device according to the invention, -Figure 2 is a partial perspective view of the same trip device showing the cradle and armature, -Figure 3 is a bottom view of the cradle, -Figure 4 is a perspective view of the samne trip device prior to fitting of a case, -Figure 5 is a perspective view of the same trip device after fitting of the case and before closing of a protective cover, -Figure 6 is a perspective view of the same trip device after closing of the cover, -Figure 7 is a partial perspective view illustrating another embodiment of a trip device according to the invention, -Figure 8 Is a side view of the same apparatus, -Figure 9 is a top view of the same apparatus, -Figure 10 is a perspective view illustrating another embodiment of a trip device according to the invention in which the latter comnprises a mounting plate designed to cooperate with a case and, -Figure I11 is a perspective view of this trip device after the case has been fitted.
DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS In figure 1, an electromagnetic trip device D can be seen comprising, in a manner known in itself, a cradle I supporting a U-shaped armature 2 the ends whereof forrm two polar surfaces operating in conjunction with a vane 3 pivoting with respect to said ar-nature 2, said vane 3 being able to be moved onto said polar surfaces to close the magnetic circuit formed by the armature 2 and vane 3. This trip device D also comprises a trip coil 4 mounted around a shell 5 surrounding the magnetic circuit, said coil being able to counteract the force of a magnet 6 so as to move the vane 3. This trip device D also
I
4 Scomprises a resetting pin 7 of the vane 3 designed to act on a blade 8 fixed onto the vane 3 O and designed to dampen the impact of the resetting forces, said pin acting as trip device of
O
the mechanism of the apparatus in which the relay is fitted, and a return spring 9 of the vane 3.
The operation of such a trip device D will be described hereafter. At rest, there is no S current in the coil 4, the vane 3 is kept stuck on the armature 2 by the flux generated by the t magnet 6. When a current occurs in the coil 4, the vane 3 opens when this current has t reached a certain level predefined by the equilibrium between the torque of the spring 9 and the magnetic torque generated by the flux generated by the magnet 6.
In figures 1 and 2, it can be seen that the cradle 1 comprises a first part 10 supporting the armnnature 2 and magnet 6 and a second part 11 moulded with the first part, forming the shell of the coil 4. According to the invention, the cradle 1 comprises a support 12 of a pin 7 moulded with the above-mentioned first 10 and second I 1 parts. This support 12 comprises a first part 13 connected to the shell 5 and extending substantially perpendicularly to said shell 5, a second part 14 extending substantially perpendicularly to the first part 13 and a third part 15 extending substantially perpendicularly to the second part 14 and comprising an aperture 16 for passage of the pin 7.
The shell 5 of the coil 4 comprises a core 17 supported by the first part 10 of the cradle 1 and comprising a longitudinal recess 18 designed to receive one 19 of the branches 19,20 of the U of the armature 2, whereas the other branch 20 of the U passes through the first part 10 of the cradle 1, this branch 20 of the U being held by the cradle 1 by means of two clips 21,22 as represented in figure 3. The cradle 1 therefore positions the anrmature 2 transversely by the internal face 23 of the armn-ature 2 bearing flat on the bottom face 24 of the cradle 1, longitudinally, by means of centring parts a,b, and laterally, by adjustment of the dimensions 25,26 of the armnature 2 with the internal dimensions 27,28 of the cradle 1.
It can be seen in particular in figure 2 that to optimize a volume of copper with respect to a given volume, to optimize the mechanical and functional compromise between the volume of the coil winding, the number of turns and the magnetic characteristics of the winding, and to achieve reliability of insertion of the armature in the core of the cradle with a minimum functional clearance, the core of the cradle is designed without material on the sides.
I
tn SThe cradle 1 positions and secures the magnet 6 due to the adjustment of the shape of the O magnet 6 and of an opening 29 provided in the cradle 1, as illustrated in figure 2.
O
The relay cradle 1 also supports the catches 30 which are connected, via one 31 of their Sends, to the coil 4.
The cradle 1 in addition comprises a wall 32 (fig.l) forming a stop enabling the relay to remain functional without a case or a mounting plate, providing a support for the vane 3 3 when it swivels on its articulation to the open position.
A specific shape 33 of the cradle 1 enables the spring 9 to be attached.
Referring now to figures 4 to 6, it can be seen that, according to a particular embodiment, the design of the cradle 1, due to its specific shapes, ensures tightness of the relay with a case 34 in particular at the level of the top part 35 of the support 12 of the pin 7, which cooperates with an aperture 36 provided in the case 34.
Referring now to figures 7,8 and 9, it can be seen that, according to a particular embodiment of the trip device D, the latter comprises in addition a metal part 37 welded onto the armature 2. The spring-catch shape 38 is obtained by cutting and bending a part of this metal part 37. The latter also enables the magnet 6 to be positioned due to the shape of its two lugs 39,40, enables the magnet 6 to be secured by welding, and forms a rear articulation stop 41 of the vane-blade sub-assembly.
According to another embodiment illustrated in figures 10 and 11, the sub-assembly formed by the armature 2 and cradle 1 is secured on a mounting plate 42, the latter also acting as cover for a case 43 engaging on said mounting plate 42. Tightness is achieved between the mounting plate 42 and case 43.
It should be noted that the shell of the coil without material on the sides enables the dependability to be improved by adjusting the chains of dimensions.
Thus, the above-mentioned opening 18 in the core 17 is delineated by two opposite walls 44,45 designed to cooperate with two opposite surfaces 46,47 of the above-mentioned branch 19 of the armature 2.
An electromagnetic trip device comprising a cradle performing guiding of the pin has therefore been achieved by means of the invention, the tightness of the cradle with the case, comprising the shell of the coil, supporting the connectors of the coil, securing the magnetic parts of the relay i.e. the magnet and armature, comprising a spring attachment t 6 c1 and constituting a mechanical and functional reference frame of the pin with respect to the O sub-assembly comprising the armature and vane of the relay.
O
As all these functions are perfonnred by the cradle, this enables the trip device to be functional without its case and without its mounting plate. The dependability of the relay is enhanced due to the simplification of the chains of dimensions, this simplification being due to the fact that the cradle guides the pin and references the pin with respect to the magnetic sub-assembly composed of the armature and the vane with its blade. The In functional sub-assembly comprises the pin, the shell, the coil, the connectors, the annature, the magnet, the articulation stop, the vane, the blade and the spring.
This cradle can be achieved by plastic injection.
The invention applies particularly to differential switches and differential circuit breakers and to any other apparatus liable to use a trip device.
The invention is naturally in no way limited to the embodiments described and illustrated which have been given for example purposes only.
On the contrary, the invention extends to encompass all the technical equivalents of the means described as well as combinations thereof if the latter are performed within the spirit of the invention.
Claims (12)
1. Electromagnetic trip device comprising a cradle supporting a U-shaped armature the ends whereof form two polar surfaces operating in conjunction with a vane pivoting t with respect to said armature, said vane being able to be moved onto said polar t3 surfaces to close the magnetic circuit formed by the armature and vane, a trip coil mounted around a shell surrounding the magnetic circuit able to counteract the force of the magnet so as to move the vane, said trip device also comprising a resetting pin of the vane mounted sliding in a support, characterized in that the above-mentioned cradle comprises the above-mentioned support (12) of a pin
2. Trip device according to claim 1, characterized in that the above-mentioned cradle comprises the above-mentioned shell
3. Trip device according to claim 1 or 2, characterized in that the cradle comprises a part (10) supporting the armature which part (10) is connected to the shell said shell being connected to the support (12) of the pin
4. Trip device according to any one of the claims 1 to 3, characterized in that the shell of the coil comprises a core (17) comprising a longitudinal opening (18) designed to receive one (19) of the branches (19,20) of the U of the armature Trip device according to claim 4, characterized in that the above-mentioned opening (18) is delineated by two opposite walls (44,45) of the shell designed to cooperate with two opposite surfaces (46,47) of the above-mentioned branch (19) of the armature
6. Trip device according to any one of the foregoing claims, characterized in that the cradle comprises an element forming a spring attachment (33) moulded with said cradle tt) 8
7. Trip device according to any one of the foregoing claims, characterized in that the o cradle (1I) comprises catches (30) connected via one (31) of their ends to the winding O of the above-mentioned coil
8. Trip device according to any one of the foregoing claims, characterized in that the Scradle comprises a means for positioning and securing the magnet N 9. Trip device according to any one of the foregoing claims, characterized in that it comprises in addition a metal part (37) welded onto the armature and comprising a spring attachment (38). Trip device according to claim 9, characterized in that the magnet is welded onto the above-mentioned metal part (37).
11. Trip device according to claim 9 or 10, characterized in that the above-mentioned metal part (37) fonis an articulation stop (41) of the vane
12. Trip device according to any one of the foregoing claims, characterized in that it comprises clipping means (21,22) provided on the cradle to perform removable fixing of the an-rmature on the cradle
13. Trip device according to any one of the foregoing claims, characterized in that the cradle comprises a wall (32) forming a stop of the pin in translation.
14. Trip device according to any one of the foregoing claims, characterized in that the cradle comprises a part (35) cooperating tightly with the opening (36) of a case (34) designed for passage of the resetting pin Trip device according to any one of the foregoing claims, characterized in that the sub-assembly comprising the armature and cradle is mounted on a mounting plate (42) cooperating tightly with a case (43).
16. Electrical protection apparatus comprising a trip device according to any one of the foregoing claims. DATED this 20th day of October 2005. SCHNEIDER ELECTRIC INDUSTRIES SAS WATERMARK PATENT TRADEMARK ATTORNEYS 290 BURWOOD ROAD HAWTHORN VIC 3122
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0411219A FR2877137B1 (en) | 2004-10-21 | 2004-10-21 | ELECTROMAGNETIC TRIGGER AND ELECTRIC PROTECTION APPARATUS HAVING THE SAME |
| FR0411219 | 2004-10-21 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2005225079A1 true AU2005225079A1 (en) | 2006-05-11 |
| AU2005225079B2 AU2005225079B2 (en) | 2009-12-10 |
Family
ID=34949972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2005225079A Ceased AU2005225079B2 (en) | 2004-10-21 | 2005-10-20 | Electromagnetic trip device and electrical protection apparatus |
Country Status (10)
| Country | Link |
|---|---|
| EP (1) | EP1650780B1 (en) |
| CN (1) | CN1763884B (en) |
| AR (1) | AR052022A1 (en) |
| AU (1) | AU2005225079B2 (en) |
| BR (1) | BRPI0504334B1 (en) |
| DE (1) | DE602005003424T2 (en) |
| EA (1) | EA009364B1 (en) |
| ES (1) | ES2297651T3 (en) |
| FR (1) | FR2877137B1 (en) |
| NO (1) | NO329729B1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4738530B2 (en) * | 2007-04-27 | 2011-08-03 | 三菱電機株式会社 | Electronic overload relay |
| DE102009025513A1 (en) * | 2009-06-19 | 2010-12-30 | Ellenberger & Poensgen Gmbh | Electronic circuit breaker |
| EP2434519A1 (en) * | 2010-09-27 | 2012-03-28 | ABB Technology AG | Magnetic actuator with two-piece side plates for a circuit breaker |
| CN106169712B (en) * | 2016-09-29 | 2019-01-11 | 协成科技股份有限公司 | Vertical flush mounting type high voltage load switch-fuse combined electric apparatus |
Family Cites Families (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR1100916A (en) * | 1954-03-08 | 1955-09-26 | Manual and automatic switch-circuit breaker | |
| BE759996A (en) * | 1970-01-02 | 1971-05-17 | Felten & Guilleaume Schaltanl | TRIGGER FOR FAULT CURRENT PROTECTION CIRCUIT BREAKER |
| IT209349Z2 (en) * | 1985-10-15 | 1988-10-05 | Elettrocondutture | POLARIZED ELECTROMAGNETIC ACTUATOR STRUCTURE. |
| FR2620264B1 (en) * | 1987-09-03 | 1989-12-01 | Merlin Gerin | MAGNETIC TRIGGER WITH KNIFE JOINT |
| IT226720Z2 (en) * | 1992-06-25 | 1997-07-01 | Abb Elettrocondutture Spa | POLARIZED ELECTROMAGNETIC ACTUATOR DEVICE |
| ES1025695Y (en) | 1993-09-09 | 1994-07-16 | Electric Distrib & Contr Es Sa | PERFECTED RELAY. |
| ATE259539T1 (en) | 1996-01-23 | 2004-02-15 | Abb Schweiz Ag | YOKE FOR A MAGNETIC RELEASE, PREFERABLY USABLE IN A RESIDUAL CURRENT PROTECTION SWITCH |
| DE19637077A1 (en) | 1996-09-12 | 1998-03-19 | Maier & Cie C | Permanent magnet for the magnetic circuit of a magnetic release that can preferably be used in a residual current circuit breaker |
| DE19837059A1 (en) * | 1998-08-17 | 2000-02-24 | Maier & Cie C | Tripping device for a circuit breaker, in particular a residual current circuit breaker |
| FR2823369B1 (en) * | 2001-04-06 | 2003-10-24 | Realisation De Disjoncteurs So | ELECTROMAGNETIC TRIGGER COMPRISING AN ELECTROMAGNETIC CIRCUIT BASED ON AN ELASTICALLY DEFORMABLE BASE AND ELECTROMAGNETIC TRIGGER INCLUDING A FLOATING COIL |
| DE50307420D1 (en) * | 2003-04-15 | 2007-07-19 | Siemens Ag | Magnetic system for a hinged armature relay |
-
2004
- 2004-10-21 FR FR0411219A patent/FR2877137B1/en not_active Expired - Fee Related
-
2005
- 2005-09-13 ES ES05354032T patent/ES2297651T3/en active Active
- 2005-09-13 DE DE200560003424 patent/DE602005003424T2/en active Active
- 2005-09-13 EP EP20050354032 patent/EP1650780B1/en active Active
- 2005-10-14 CN CN 200510113712 patent/CN1763884B/en active Active
- 2005-10-20 AU AU2005225079A patent/AU2005225079B2/en not_active Ceased
- 2005-10-20 EA EA200501494A patent/EA009364B1/en not_active IP Right Cessation
- 2005-10-20 AR ARP050104388A patent/AR052022A1/en active IP Right Grant
- 2005-10-21 BR BRPI0504334-4A patent/BRPI0504334B1/en active IP Right Grant
- 2005-10-21 NO NO20054891A patent/NO329729B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CN1763884A (en) | 2006-04-26 |
| NO20054891D0 (en) | 2005-10-21 |
| AU2005225079B2 (en) | 2009-12-10 |
| AR052022A1 (en) | 2007-02-28 |
| DE602005003424D1 (en) | 2008-01-03 |
| NO329729B1 (en) | 2010-12-06 |
| EA200501494A1 (en) | 2006-04-28 |
| FR2877137A1 (en) | 2006-04-28 |
| DE602005003424T2 (en) | 2008-09-25 |
| EA009364B1 (en) | 2007-12-28 |
| EP1650780B1 (en) | 2007-11-21 |
| CN1763884B (en) | 2010-04-14 |
| NO20054891L (en) | 2006-04-24 |
| BRPI0504334B1 (en) | 2017-06-20 |
| FR2877137B1 (en) | 2006-12-22 |
| ES2297651T3 (en) | 2008-05-01 |
| BRPI0504334A (en) | 2006-06-27 |
| EP1650780A1 (en) | 2006-04-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) | ||
| MK14 | Patent ceased section 143(a) (annual fees not paid) or expired |