CN1033833C - Operating mechanism with rocking lever for a phaseplus neutral electrical circuit breaker - Google Patents
Operating mechanism with rocking lever for a phaseplus neutral electrical circuit breaker Download PDFInfo
- Publication number
- CN1033833C CN1033833C CN 93103528 CN93103528A CN1033833C CN 1033833 C CN1033833 C CN 1033833C CN 93103528 CN93103528 CN 93103528 CN 93103528 A CN93103528 A CN 93103528A CN 1033833 C CN1033833 C CN 1033833C
- Authority
- CN
- China
- Prior art keywords
- contact
- plate
- spring
- shank
- operating mechanism
- 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.)
- Expired - Fee Related
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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
- H01H71/002—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00 with provision for switching the neutral conductor
-
- 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
- H01H71/50—Manual reset mechanisms which may be also used for manual release
- H01H71/52—Manual reset mechanisms which may be also used for manual release actuated by lever
- H01H71/526—Manual reset mechanisms which may be also used for manual release actuated by lever the lever forming a toggle linkage with a second lever, the free end of which is directly and releasably engageable with a contact structure
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- Breakers (AREA)
Abstract
An actuating mechanism for a single-pole and neutral circuit breaker includes a tension spring (48) inserted between the two contact-holders, neutral (18) and phase (20), and anchored between a stud (68) of a drive plate and a transverse pin (58) of a swinging lever device. This results in a balancing of the pressure loads on the contacts, independently of wear and of manufacturing tolerances.
Description
The present invention relates to the operating mechanism of a small-sized phase line and neutral circuit circuit breaker, have:
One dual switch element, comprise one by center line contact supporting plate supporting with one fixedly the movable center line contact that cooperates, center line contact and one that support by the phase line contact supporting plate with the fixing movable phase line contact that cooperates, phase line contact,
One rotor plate, in order between an open position of contact and an off-position, driving two contact supporting plates simultaneously,
An actuation handle, it is connected in a machine driving connecting rod that links to each other with plate,
Interruption pole by tripper control in order to disconnect mechanical linkage, causes opening automatically of contact when having problems,
And flexible apparatus, in order to contact force to be provided when plate moves to off-position because of the manual operation of handle,
In an one pole and neutral circuit circuit breaker, contact force is normally provided by the spring of two mutual lateral offset in contacts closed position.Each spring is connected in a contact supporting plate to apply a pressure to corresponding contacts respectively.Be of a size of the problem that will cause in the shared box of 18mm on the size if in the enforcement of mechanism, two contact pressure springs are installed in one.
The operating mechanism that the purpose of this invention is to provide a kind of simplification, it is applicable to the size with the phase line of a shared box and neutral circuit circuit breaker.
Feature according to the present invention be flexible apparatus comprise one be inserted between two contact supporting plates and be fixed on a boss of plate and the balance needle rod of swing arm device between, described shank laterally extends with respect to the position of spring, and is contained in the two relative cavitys of stacked contact supporting plate.
Using an independent spring to produce double-contact pressure makes the lateral dimension of mechanism reduce.Spring and the pressure balance that makes cooperating of swing arm on two phase lines and the center line contact.
Two center line and phase line contact supporting plates of being made by insulating material are installed on the jointed shaft with the gap, to allow doing relative rotation with respect to plate.
Contact pressure spring is to be formed by a tension spring that extends in the symmetrical mid-plane of box.
At least one supporting cavity of shank comprises a first, it is configured to the radial oriented bearing of pressure executed along spring, with a second portion, it is shaped to one hinged, so that do not wait the position of adjusting shank under the situation of wearing and tearing in phase line and center line contact.
Given shape at the contact supporting plate inner cavity makes the industrialization assembling of mechanism to be adjusted with mechanism's operation of swing arm device, and irrelevant with the wearing and tearing or the manufacturing tolerance of phase line and center line contact.
To can more being clear that other advantage of the present invention and feature the description of illustrated embodiment of the present invention, illustrated embodiment only is that provide with non-limiting example and shown in the drawings from following, wherein:
Fig. 1 is an elevation view, shows the operating mechanism according to phase line of the present invention and neutral circuit circuit breaker, and wherein the contact is in the closed position.
Fig. 2 shows the sectional drawing of getting along 2-2 lines among Fig. 1.
Fig. 3 is the sectional drawing of getting along 3-3 lines among Fig. 1.
Fig. 4 is the part perspective view of mechanism shown in Figure 1, not shown contact pressure spring and phase line contact supporting plate.
Fig. 5 is detailed zoomed-in view, shows the cavity of swing arm shank.
Fig. 6 is another perspective view of mechanism.
Fig. 7 is the sectional drawing of getting along 7-7 lines among Fig. 1.
In Fig. 1 and 6, the operating mechanism 10 of a small-sized phase line and neutral circuit circuit breaker is installed within narrow, the flat mold insulation box 12 of a parallelepiped-shaped in the chamber.Mechanism 10 or activate by off-position and the handle between the open position 11 that hand control is installed on the circuit-breaker contact swingably, or activate by the automatic manipulation of a tripper.Circuit-breaker comprises a dual switch element, has the movable phase line contact 16 that a movable center line contact 14 that cooperates with fixing center line contact 15 and cooperate with fixing phase line contact 17.Tripper comprises an electromagnetism tripper 13 to the short circuit current sensitivity (Fig. 1 and 3) and the thermal trip that has bimetallic strip 19 (Fig. 6) to the overload current sensitivity.
Two moving contacts 14,16 are supported in respectively on two center lines of being made by insulating material and phase line contact supporting plate 18,20, and described two contact supporting plates are installed on the jointed shaft 22 of a common drive plate 24 with a radial clearance.Jointed shaft 22 is along laterally being positioned in the bearing 26,28 that is arranged on the aligning on the box 12 relative walls, with permission plate 24 in the contact 14,15; Limited rotation between 16,17 stable open position and the stable off-position.
An interruption pole 32 that is hinged in first rotating shaft 34 of plate 24 comprises an operating element 36 and a clamping element 38 that cooperates with lock hook 40 that cooperates with tripper 13,19, to form a machine driving connecting rod 41.Lock hook 40 is hinged on second axle 42 of plate 24, and is connected mechanically to handle 11 by a metal connecting rod 44, forms a trigger equipment.The open circuit operation of connecting rod 41 of the machinery that the French Patent (FRP) of being submitted by the applicant 2,616,583 is described mechanism 10 in detail.Mechanical linkage 41 is in latched position usually by clamping element 38 and cooperating of lock hook 40.Handle 11 makes plate 24 be driven to contact 14,15 along the manual activation of an assigned direction then; 16,17 off-position or open position.In closing closed procedure, rotor plate 24 makes torsion type open the spring (not shown) to reset, and this spring is fixed on plate 24 and between a block of the box on connecting rod 44 opposite flanks.
Along with the action of one of them tripper 13,19 so that bar 32 inhours rotate, thereby make clamping element 38 and lock hook 40 throw off, just can realize the auto-cutout of mechanism 10.This motion towards off position disconnects mechanical linkage 41, opens spring relaxation thereupon and makes plate 24 and contact supporting plate 18,20 rotate along equidirectional, with separated contacts 14,15; 16,17.
Automatically finish machinery at open position by means of a back-moving spring 46 (see figure 6)s and open circuit connecting rod 41 towards the resetting of latched position, this spring is formed by a flexible flake that is connected with interruption pole 32 regularly.
Outer side between the relative larger side surface of box 12 is to the width that is of a size of 18 millimeters.Two corresponding axles 34,42 of interruption pole 32 and lock hook 40 on plate 24 with respect to jointed shaft 22 biasings.
In off-position, provide two center lines and the contact pressure of phase line moving contact 14,16 on respective fixation contact 15,17 by an independent tension spring 48 that links to each other with swing arm device 50.Tension spring 48 preferably is positioned at figure symmetry mid-plane 52, and is inserted in two upper arm of contact supporting plate 18,20, between 54,56.
The upper end of spring 48 is hooked on the boss 68 of rotor plate 24, and the jointed shaft 22 of rotor plate 24 (it is also as the hinged axle of contact supporting plate 18,20) is between shank 58 and boss 68.On plate 24 both sides, gapped insulation contact supporting 18,20 is installed in and allows on the jointed shaft 22 to rotate accordingly, so that provide contact force in off-position with respect to plate 24.The moment of torsion that is applied by tension spring 48 often forces contact supporting plate 18,20 to clockwise rotate around jointed shaft 22, and swing arm device 50 guarantees the pressure balance on two center lines 14 and phase line 16 moving contacts.
The width of projection 64,66 is greater than the width of upper arm 54,56, and the diameter of tension spring 48 is preferably corresponding with the maximum ga(u)ge of plate 24.Little lateral separation between two projections 64,66 of two contact supporting plates 18,20 makes the bottom of spring 48 can be hooked on the shank 50.
Each cavity 60,62 of the shank 58 of supporting swing arm device 50 comprises that two relative area supported 70,72 forms are by two cylinder shape grooves, 74,76 border circular areas spaced apart from each other (Fig. 5).Inside diameter between two area supporteds 70,72 is preferably corresponding with the diameter of cylindrical shank 58.Select the angle position of two area supporteds 70,72 in the cavity 60 like this, promptly radially divide the plane equally and preferably extend along the direction of the position that is parallel to tension spring 48.The upper support of each cavity 60,62 surface 72 is as a supporting of each end of shank 58, by spring 48 applied pressures by the border circular areas on guided bearing surface 72 radially.
Allow the relative motion of shank 58 along the existence of two cylinder shape grooves 74,76 of the direction of motion of contact supporting plate 18,20 orientation, so that according to the balance that does not wait wearing and tearing assurance pressure of phase line contact 16,17 and center line contact 14,15.
When the industrialization of carrying out circuit-breaker was assembled automatically, at first the shank 58 with swing arm device 50 was assemblied in the cavity 60 of center line contact supporting plate 18.Tension spring 48 is hooked on the boss 68 of plate 24 subsequently, and is hooked on the middle part of shank 58.Before assembling phase line contact supporting plate 20, the located lateral that shank 58 inserts the degree of depth in the cavity 60 of projections 64 and guaranteed shank 58 and spring 48 assemblies at the reaction force of the pressure of area supported 72 upper springs 48.
The given shape of two cavitys 60,62 can make the industrialization assembling of mechanism 10 be adjusted with mechanism's operation of swing arm device 50, and has nothing to do with does not the wait wearing and tearing or the tolerance of phase line and center line contact.But employing is located at the size of the independent contact pressure spring reducing mechanism 10 in plate 24 thickness.
According to another embodiment, the cavity 62 of phase line contact supporting plate 20 can be used as a circular supporting and is provided with.
At Fig. 4, in 6 and 7, the bimetallic strip 19 of thermal trip in deflection be fixed on interruption pole 32 on an actuator lever 80 cooperate.Bar 80 be by cut a planar metal piece promptly the sheet metal of a little thickness obtain, have one in one of its end and be preferably circular fixing hole 82, its objective is by clamping to be assemblied in one on the Fixed latches 84 of interruption pole 32 castings of insulating material.With hole 82 relative parts a hook 86 is arranged, (Fig. 6) it and hook 86 engagements when bimetallic strip 19 deflects into the right side.
The hinged latch 84 of bar 80 first axle 34 on the operating element 36 of interruption pole 32 and with bottom that the percussion hammer of electromagnetism tripper 13 cooperates between.The contact area of bimetallic strip 19 and actuator lever 80 is limited in the zone of the inward flange of hook 86.This has just caused low-friction coefficient, and maximum thermal trip efficient.
Thermal trip actuator lever 80 is positioned in the symmetrical mid-plane 52 of contact supporting plate 18,20, and is the same with the percussion hammer of electromagnetism tripper 13.The thermal cut-out power that is delivered on the bar 80 by bimetallic strip 19 still concentrates in the mid-plane 52.Any interference or the relative friction forces of bar 80 with other element of mechanism 10 avoided in the clamping of hole 82 on the latch 84 of interruption pole 32.Thermal cut-out power from bimetallic strip 19 is reduced to minimum degree to open circuit under the situation that produces overload current like this.
When assembling mechanism 10, can automatically finish the assembling of actuator lever 80 on latch 84.Latch 84 comprises two by central channel 92 parallel flexible beads 88,90 spaced apart from each other, makes that bead is towards moving mutually when bar 80 folders are gone up.After fixing hole 82 had been assemblied on the latch 84 already, owing to have the locking clamping plate on the flange end, the flexibility of bead 88,90 made bar 80 tightly be installed on the interruption pole 32.In this position, bar 80 with a little clearance hinge on latch 84, thereby allow freely to rotate with respect to interruption pole 32.
Producing under the situation of overload current, bimetallic strip 19 deflection is to the right ordered about bar 80 and is moved along equidirectional, and interruption pole 32 turns to off position around first axle 34 subsequently.This just causes mechanical linkage 41 to disconnect, and contact 14,15; 16,17 open.
Claims (7)
1. the operating mechanism of small-sized phase line and neutral circuit circuit breaker has:
One dual switch element, comprise one by center line contact supporting plate (18) supporting with one fixedly center line contact (15) movable center line contact (14) of cooperating and one that support by phase line contact supporting plate (20) with fixing phase line contact (17) the movable phase line contact (16) that cooperates
One rotor plate (24) is in order in the contact (14,15; 16,17) drive two contact supporting plates (18,20) between a open position and the off-position simultaneously,
An actuation handle (11), it is connected in a machine driving connecting rod (41) that links to each other with plate (24),
Interruption pole (32) by a tripper (13,19) control in order to disconnect mechanical linkage (41), causes opening automatically of contact when having problems,
And flexible apparatus, in order to contact force to be provided when plate (24) moves to off-position because of the manual operation of handle (11),
It is characterized in that
Flexible apparatus comprises a spring (48), it is inserted in two contact supporting plates (18,20) between and be fixed between the balance needle rod (58) of the boss (68) of plate (24) and swing arm device (50), described shank (58) laterally extends with respect to the position of spring (48), and be contained in stacked contact supporting plate (18,20) in the two relative cavitys (60,62).
2. operating mechanism as claimed in claim 1, it is characterized in that two center line and phase line contact supporting plates of making by insulating material (8,20), be installed on the jointed shaft (22) with certain clearance, thereby allow to do relative rotation, and contact pressure spring (48) is a tension spring with respect to plate (24).
3. operating mechanism as claimed in claim 1 or 2, at least one the supporting cavity (60 that it is characterized in that shank (58), 62) comprise a first, it is configured to the radial oriented bearing of pressure executed along spring (48), with a second portion, it is shaped to one hinged, so that in phase line contact (16,17) and center line contact (14,15) do not wait under the situation of wearing and tearing and adjust the position of shank (58).
4. operating mechanism as claimed in claim 3, it is characterized in that cavity (60,62) first comprises that form is the radially relative area supported (70 of border circular areas on two, 72), they by two along two contact supporting plates (18, the cylinder shape groove (74,76) of direction of motion orientation 20) is spaced from each other.
5. as claim 2 or 4 described operating mechanisms, it is characterized in that described operating mechanism places an insulation booth (12), and two insulation contact supportings (18,20) comprise that two upper arm (54,56) that contact pressure spring (48) are set and two are around the described cavity (60 that holds shank (58) therebetween, 62) projection (64,66), the degree of depth of each cavity (60,62) is greater than the diameter of spring.
6. operating mechanism as claimed in claim 5, it is characterized in that contact supporting plate (18,20) two projections (64,66) laterally separate a small distance, so that tension spring (48) can be hooked in the middle part of shank (58), and described spring (48) extends in the symmetrical mid-plane of insulation booth (12).
7. as claim 1 or 6 described operating mechanisms, it is characterized in that contact supporting plate (18,20) jointed shaft (22) is positioned at spring (48) on the boss (68) of plate (24) and between the fixing point on the shank (58), and interruption pole (32) is installed on first axle (34) of plate (24) can do limited rotation, and described first axle (34) is setovered with respect to jointed shaft (22).
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR9203985 | 1992-03-31 | ||
| FR9203985A FR2689308B1 (en) | 1992-03-31 | 1992-03-31 | STEERING MECHANISM FOR NEUTRAL PHASE AND NEUTRAL ELECTRIC CIRCUIT BREAKER. |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1077051A CN1077051A (en) | 1993-10-06 |
| CN1033833C true CN1033833C (en) | 1997-01-15 |
Family
ID=9428372
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 93103528 Expired - Fee Related CN1033833C (en) | 1992-03-31 | 1993-03-30 | Operating mechanism with rocking lever for a phaseplus neutral electrical circuit breaker |
Country Status (6)
| Country | Link |
|---|---|
| EP (1) | EP0564379B1 (en) |
| CN (1) | CN1033833C (en) |
| DE (1) | DE69303097T2 (en) |
| ES (1) | ES2090929T3 (en) |
| FR (1) | FR2689308B1 (en) |
| RU (1) | RU2096853C1 (en) |
Families Citing this family (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100486756C (en) * | 2004-11-19 | 2009-05-13 | 杨庆来 | Die forging production technology for hard copper alloy explosion-proof instrument |
| DE102006038005B4 (en) * | 2006-05-22 | 2009-04-23 | Dehn + Söhne Gmbh + Co. Kg | Connection and base part for receiving a pluggable surge arrester |
| DE102008049507A1 (en) | 2008-09-29 | 2010-04-01 | Ellenberger & Poensgen Gmbh | Miniature circuit breaker |
| ITMI20090009A1 (en) * | 2009-01-08 | 2010-07-09 | Abb Spa | COMMAND MECHANISM FOR AN INTERRUPTING DEVICE AND DEVICE OF INTERRUPTION INCLUDING SUCH MECHANISM. |
| CN102136398B (en) * | 2010-01-21 | 2014-08-13 | 施耐德电器工业公司 | Contactor |
| CN104036978B (en) * | 2014-05-13 | 2016-06-15 | 宁波舜利高压开关科技有限公司 | Single spring contact pressure apparatus of isolation strip earthed switch and actuating method thereof |
| CN104134588B (en) * | 2014-07-17 | 2016-03-02 | 正泰集团股份有限公司 | A kind of operating means of multipole small-size circuit breaker |
| CN106158529B (en) * | 2015-04-28 | 2018-10-23 | 上海电科电器科技有限公司 | The operating mechanism of breaker |
| JP6752351B2 (en) * | 2016-08-30 | 2020-09-09 | 趙建平ＺＨＡＯ， Ｊｉａｎｐｉｎｇ | Circuit breaker bracket |
| CN106971921B (en) * | 2017-04-17 | 2019-10-01 | 乐清市沃斯托电气有限公司 | Breaker |
| SI25460B (en) * | 2017-06-06 | 2021-11-30 | Nela Razvojni Center Za Elektroindustrijo In Elektroniko, D.O.O. | Improved thermomagnetic actuator in a security electric switch |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2485254A1 (en) * | 1980-06-19 | 1981-12-24 | Merlin Gerin | MINIATURE UNIPOLAR AND NEUTRAL CIRCUIT BREAKER |
| FR2616583B1 (en) * | 1987-06-09 | 1995-01-06 | Merlin Gerin | CONTROL MECHANISM OF A MINIATURE ELECTRIC CIRCUIT BREAKER |
-
1992
- 1992-03-31 FR FR9203985A patent/FR2689308B1/en not_active Expired - Fee Related
-
1993
- 1993-03-26 EP EP19930420138 patent/EP0564379B1/en not_active Expired - Lifetime
- 1993-03-26 DE DE1993603097 patent/DE69303097T2/en not_active Expired - Fee Related
- 1993-03-26 ES ES93420138T patent/ES2090929T3/en not_active Expired - Lifetime
- 1993-03-30 CN CN 93103528 patent/CN1033833C/en not_active Expired - Fee Related
- 1993-03-30 RU RU93004768A patent/RU2096853C1/en active
Also Published As
| Publication number | Publication date |
|---|---|
| ES2090929T3 (en) | 1996-10-16 |
| FR2689308B1 (en) | 1994-05-20 |
| FR2689308A1 (en) | 1993-10-01 |
| DE69303097D1 (en) | 1996-07-18 |
| RU2096853C1 (en) | 1997-11-20 |
| CN1077051A (en) | 1993-10-06 |
| EP0564379A1 (en) | 1993-10-06 |
| EP0564379B1 (en) | 1996-06-12 |
| DE69303097T2 (en) | 1997-01-02 |
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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 | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: MERLIN GERIN TO: SCHNEIDER ELECTRIC SA |
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| CP03 | Change of name, title or address |
Address after: French Silone Be Jan Gu Patentee after: Schneider Electric SA Address before: French orchid Patentee 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 |
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| 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 |