CN1031737C - Test key arrangement for an earth-leakage current circuit-breaker or differential-current circuit-breaker - Google Patents
Test key arrangement for an earth-leakage current circuit-breaker or differential-current circuit-breaker Download PDFInfo
- Publication number
- CN1031737C CN1031737C CN93104024A CN93104024A CN1031737C CN 1031737 C CN1031737 C CN 1031737C CN 93104024 A CN93104024 A CN 93104024A CN 93104024 A CN93104024 A CN 93104024A CN 1031737 C CN1031737 C CN 1031737C
- Authority
- CN
- China
- Prior art keywords
- plate
- feeler switch
- switch device
- projection
- current circuit
- 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
Links
Images
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
- H01H71/04—Means for indicating condition of the switching device
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H83/00—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current
- H01H83/02—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents
- H01H83/04—Protective switches, e.g. circuit-breaking switches, or protective relays operated by abnormal electrical conditions otherwise than solely by excess current operated by earth fault currents with testing means for indicating the ability of the switch or relay to function properly
Landscapes
- Breakers (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
- Switch Cases, Indication, And Locking (AREA)
Abstract
A residual current device contains moving and stationery contact elements, the moving contact elements being mounted on a contact lever which is accommodated in a contact lever support. A sliding plate is mounted on a guide plate, which sliding plates is displaced over a projection by a tab on the contact lever support, in such a manner that a projection which is located on the sliding plate passes into the movement path of a test button during the switching-off process, in such a manner that the test button can no longer be completely pressed in (depressed) in the switched-off state. In the switched-on state, the test button can be pressed in completely, so that a test button circuit having a moving contact element and a stationery contact element can be closed. The sliding plate has a lug which is located in front of an opening which is located in the region of an opening in the front wall by painting the lug with different paints, it is possible to identify through the opening whether the switch is in the switched-on or switched-off position.
Description
The present invention relates to the feeler switch device of a kind of earth leakage current circuit breaker or differential current circuit breaker, the test bond energy of this device moves perpendicular to the mounting plane of circuit breaker, can be from departing from the front-operated of mounting plane, and can affact on the test movable contact spring, test circuit promptly is switched on or switched off by means of this movable contact spring, this feeler switch device has an indicating device to indicate the position of disconnect movable contact spring, plane first shoulder that indicating device has an energy to move previously at a window that is configured in facial area.
This feeler switch device in earth leakage current circuit breaker or differential current circuit breaker in order to detect in earth leakage current circuit breaker or the differential current circuit breaker reliability and sensitivity in order to check earth leakage current circuit breaker or differential current circuit breaker function aspects.Feeler switch impels release to react thus, thereby blocking mechanism is unblanked, and each contact is opened in order to connect test circuit.
DRP DE 4.011,680A1 discloses this specification and has started described the sort of feeler switch device, position of the switch indicating device and Control Shaft in this device interact, the movable contact spring of earth leakage current circuit breaker or differential current circuit breaker promptly is contained on the Control Shaft, and coupling by means of spring assembly between control axis movable contact spring and the position of the switch indicating device realizes.Feeler switch affacts on another spring assembly, and the pressure when earth leakage current circuit breaker or differential current closing of power circuit breaker on the feeler switch makes the free end of spring assembly contact with wiring between Control Shaft and position of the switch indicating device.For making test circuit unlikely connection when the earth leakage current circuit breaker disconnects, the length-specific of spring assembly is obtained the free end that makes spring assembly and can not contacted with the wiring between Control Shaft and position of the switch indicating device when circuit breaker disconnects.Yet however, feeler switch can be pressed into fully, and still contacts under the situation that spring assembly damages.
The purpose of this invention is to provide described that a kind of feeler switch device of this specification beginning, this device can avoid test circuit to connect when earth leakage current circuit breaker or differential circuit breaker open circuit reliably.
The present invention reaches this purpose by following measure: be equipped with a plate to indicating device, this plate can be operated and be regulated by the switch contact in the process of switch, return indicating device and be equipped with second shoulder, this shoulder feeds in the motion path of feeler switch in the open-circuit operation process, thereby avoid the feeler switch action, test circuit is connected.
Specifically, because the movable contact spring plate that can be operated and regulate in switching process moves in the mobile route of feeler switch together at open-circuit operation process its second shoulder that neutralizes, thereby feeler switch changes on-position at earth leakage current circuit breaker or the differential current circuit breaker Shi Buhui that opens circuit, thereby avoids test circuit to connect reliably.
The present invention has two kinds of feasible solutions.
At first be to be equipped with an extension, this extension and a projection that is configured on the Control Shaft interacted, thereby make Control Shaft affact this extension, plate is moved in the direction of open position to plate.
In the case, can get back to the position of connection all the time for making plate, be provided with a stage clip, the pressure that affacts on the plate on the connection direction by means of stage clip makes plate retract the position of connection.
Also can on Control Shaft, adorn a spring pivot, Control Shaft be combined with plate by means of this spring pivot.In the case, plate is suitably to install with respect to the rotating mode of shell, and shell is then being encircled earth leakage current circuit breaker or differential current circuit breaker.
Other most preferred embodiment of the present invention and improvement project can be referring to remaining dependent claims.
Illustrate in greater detail and describe the present invention and other most preferred embodiment and improvement project by means of accompanying drawing (two embodiment of the present invention have been shown in the accompanying drawing) now.
Fig. 1 to 4 show respectively feeler switch device first embodiment in the variant position of the switch end view of (contact contact position, on-position, scram position and off position).
Fig. 5 shows the plane graph of looking from the arrow V direction of Fig. 1 feeler switch device.
Fig. 6 shows the plane graph of looking from the arrow VI direction of Fig. 1 device.
When Fig. 7 and 9 shows the feeler switch device respectively and is in contact contact position, on-position and scram position and the similar end view of Fig. 1 to 4.
Fig. 1 to 4 shows electrical switchgear inside respectively, and preferably the view of earth leakage current circuit breaker inside wherein shows each important for purposes of the invention parts, and those less important parts are not shown.This switching device, or earth leakage current circuit breaker 10 or rather have a shell 11, only see the forward part of shell 11 among the figure, that promptly relative with mounting plane part.A hole 13 is arranged on the antetheca 12 of shell 11.Guide plate 15 is arranged in shell 11, be parallel to sidewall 14, guiding mobile plate 16 to move on guide plate 15, mobile plate 16 extends perpendicular to this limit in the face of a rectangle projection 17 is arranged on one side of antetheca, and mobile plate 16 has the coating of different colours in the face of the surface 18 of antetheca 12.The fly in circles extension 20 of ennuple is configured on the opposite side 19 vertically with it, and this extension is integrally to form on limit 19 by the connection projection 21 that extends perpendicular to guide plate.Extend in the prolongation at edge 22 in this device extension 20, and edge 22 is positioned at the left side of Fig. 1, extends perpendicular to antetheca 12.
Fixed touching plate 23 is positioned at 20 belows, extension, be contained on the contact fixed rail 24, interact with the movable contact spring 25 that is contained on the contact stem 26,26 of contact stem are introduced contact pole socket 27 and (are not illustrated in greater detail among the figure, its profile of only drawing) in, contact stem 26 is passed contact pole socket 27, and is overlapping at the opposite and the contact pole socket of antetheca at on-position, shown in numbering 26 in this position.Projection 29 integrally forms with this pole socket on contact pole socket 27, and the pivot center 28 that is parallel to contact base extends, and the free end of extension 20 promptly leans against on the projection 29, and this also can see from Fig. 6.
On Fig. 1 right side, shell 11 has a branch 36 to form a recess 37, feeler switch promptly imports in the recess 37 perpendicular to antetheca 12, the arm 39 of feeler switch 38 extends perpendicular to antetheca 12, the free end of arm 39 has a projection 40, and projection 40 integrally forms with this free end, and projection 40 is inwardly outstanding, embed block 41 back on the shell 11, thereby make the motion path of feeler switch inevitable in the direction of arrow F.
Feeler switch 38 has a stay 42 to extend perpendicular to main antetheca 12.
Earth leakage current circuit breaker internal fixation disposes spring base 43, and the pin 44 of spring base 43 is parallel to pivot center 28 and extends, and touch spring 45 promptly resembles the helical spring on pin 44.
One of them free arm of three free arms of touch spring, specifically arm 46, overlapping with the inner portion of earth leakage current circuit breaker, its U-shaped end 47 has a horizontal linking arm 48 in abutting connection with arm 46, there is a vertical linking arm 49 to form at its free end with this free end is whole, vertically linking arm 49 is parallel to contact stem 26 and bends towards contact stem 26 at an angle with arm 46, and the size of the angle α that this is bent to form obtains the free end that makes vertical linking arm 49 and flexibly is pressed in all the time on the end of contact stem 26 away from that side of contact.This makes and forms conduction between contact stem and the position 45a resemble the coil spring and be connected.
Spring base 43 (as shown in Fig. 5 plane graph) has individual platform 50 to be parallel to antetheca 12 extensions, has several to become an integrally formed projection 51 with platform on the platform 50, and latter's lead wire is parallel to pilot pin 44 and extends on platform.Pin 44 forms with integral body of this wall on the wall 53 of location, and wall 53 directions towards antetheca in location are extended perpendicular to platform, is parallel to plate 16 configurations.
One end of lead 52 located adjacent walls 53 bends to the lead that is parallel in the arm end 54, and this lead is placed on the platform equally, by means of fixing projection 55 fix in position.
Can see that from Fig. 1 to 4 moving contact element 56 is positioned at the scope of activities of stay 42, thereby the directive effect of closing F when the contrary arrow of pressure is to feeler switch 38 time, moving contact element is forced on the arm end 54 of lead 52 as fixed touching plate.
As can see from Figure 5, lead 52 is arms of resistor 57, another arm 58 of resistor 57 is connected with phase conductor when rail 24 is in the neutral conductor conductive path of ground leakage resistance circuit breaker, perhaps is connected with neutral conductor when rail 24 is in the conductive path of phase conductor.
Fig. 1 shows the state of earth leakage current circuit breaker when movable contact spring 25 contacts with fixed touching plate 23 in the making operation process.In the case, the free end of extension 20 leans against on the projection 29.
Fig. 2 shows on-position, and at this moment the contact stem among Fig. 2 is in the left side of pivot center 28, can see that extension 20 breaks away from projection 29.
When circuit breaker enters open position, contact stem 26 and projection 29 move into off position equally together with the contact pole socket, projection 29 is run into extension 20, with extension and plate 16 pressed rightwards therewith, the pressure of stage clip 31 that contends with, thus projection 34 is passed below the shoulder on the stay 42 59; Shoulder 59 is parallel to integral body of stay 42 and stay and forms at the position of feeler switch 38 pressure surface 38a, specifically, shoulder 59 be positioned at projection 34 motion paths directly over.
As can see from Figure 3, in so-called scram position, shoulder 59 leans against on the projection 34, and arm or moving contact element 56 can not be pressed onto on conductive arms or the arm end 54, is exactly this situation among Fig. 1 embodiment.
Fig. 4 shows the earth leakage current circuit breaker that is under the off position, also can see here, and when feeler switch 38 was pressed down, shoulder 59 was run into projection 34, thereby makes the feeler switch contact 54/56 can not be closed.
As can see from Figure 6, have two guide cards 60 and 61 on the top edge of plate 16 and the lower limb respectively, engage up and down with guide plate 15 from behind, move, be parallel to main antetheca equally and extend thereby make plate 16 can be parallel to lower limb.
Fig. 7 to 9 shows an alternative embodiment of the invention.Parts same among the figure adopt same numbering.
Be mounted with the rotation axis 28 of guide plate 15 and contact pole socket 27 in the shell 11, contact stem 26 is housed on the contact pole socket 27,26 of contact stem are supporting the movable contact spring 25 that can contact with fixed touching plate 23.
From the design of Fig. 7, can see, not adopt mobile plate 16 here, and adopt rotation plate 70 to be pivoted by axle 71 relative guide plates 15.Projection 72 corresponding to surface 18 is housed on the edge of that side of antetheca of rotation plate 70, rotates plate perpendicular to this.Monoblock forms perpendicular to the connecting line between the axle 71 of the edge on contact 25 and 23 opposites on projection 72 and the rotation plate in extension 73, and its effect is identical with projection 34.Earth leakage current circuit breaker 10 has the feeler switch 38 of band stay 42 and shoulder 59.
The end that rotates plate 72 has a hole 74, and an end of link rod 75 promptly hangs in the hole 74, and the other end of link rod 75 then is pivoted with respect to contact pole socket 27.The arm 46 of spring 45 (part of only having drawn among the figure), its structure and with movable contact spring and connected mode as described above.
Fig. 7 shows switching device and is in the contact contact position, promptly is in movable contact spring 25 and fixed touching plate 23 position contacting in the making operation process.In the process that making operation further goes on, have only the position of contact stem 26 to change, rotate the invariant position of plate 70.
When Fig. 8 and 7 each so-called on-position or contact contact position, can push arm 56 that feeler switch 33 makes touch spring 45 and couple together with resistor 57, so the circuit between contact stem 26 and the respective wire is just connected by means of the arm 54 of lead 52.
When off position, the contact pole socket makes by coupling components or link rod 75 and rotates plate 70 pivoted along clockwise direction, and extension 73 just forwards under the shoulder 59 of feeler switch 38, thereby makes extension 73 preventions or prevent that feeler switch 38 is pressed into fully.
Said above that mobile plate 16 had projection 17 and 72 respectively separately with vertical with it flap 70.These projections can be coated different colors, for example green can be painted in the surface 17 in center line 17a left side, redness can be painted in the surface on its right side, like this can be from the hole under on-state 13 sees and paints red surface, can see green surface under off state.Projection 72 also can be painted in the same way, makes by hole 13 and can demonstrate danger signal, shows green under off state.
Claims (10)
1. the feeler switch device of earth leakage current circuit breaker or differential current circuit breaker, the test bond energy of this device moves perpendicular to the mounting plane of described circuit breaker, can be from departing from the front-operated of mounting plane, and can affact on the test movable contact spring, test circuit promptly is switched on or switched off by means of this movable contact spring, this feeler switch device has an indicating device to indicate the position of described killer switch movable contact spring, plane first shoulder that this indicating device has an energy to move previously at a window that is configured in facial area, it is characterized in that, this indicating device comprises plate (16,70), this plate can be by switch contact (23 in switching process, 25) operation and adjusting, indicating device also has second shoulder (34,73), this second shoulder enters in the motion path of feeler switch (38) in the open-circuit operation process, thereby avoids the feeler switch action and the connection test circuit.
2. according to the feeler switch device of claim 1, it is characterized in that the test movable contact spring is formed by an end (56) of helical spring section (45), the other end of spring section (45) flexibly is pressed on the switch contact.
3. according to the feeler switch device of claim 1, it is characterized in that test circuit has a wire element, this wire element is connected with an end of resistive element, forms and the interactional test fixed touching plate of test movable contact spring.
4. according to the feeler switch device of claim 2 or 3, this device has the Control Shaft of a supporting switch contact, it is characterized in that, plate (16) has an extension (20), this extension can interact with a projection (29) that is configured on the Control Shaft (28), this projection (29) affacts on this extension in the process that opens circuit, and this plate is moved in the direction of off position.
5. according to the feeler switch device of claim 4, it is characterized in that plate (16) can move by means of the power of stage clip (31), the power of this stage clip is pushed down plate on the direction of on-position.
6. according to the feeler switch device of claim 2 or 3, it is characterized in that, an elastic rod (75) is housed on the Control Shaft, this elastic rod is connected with plate (70).
7. according to the feeler switch device of claim 6, it is characterized in that plate (70) fixedly mounts with respect to shell in rotating mode.
8. according to the feeler switch device of claim 6, it is characterized in that plate (70) is contained on the plate (15).
9. feeler switch device according to Claim 8 is characterized in that, has been integrally formed therewith one on the plate (70) and has buckled into formula projection (71) fast, and this projection forms a bearing, can buckle into fast in the recess on the plate (15).
10. according to the feeler switch device of claim 9, it is characterized in that plate (70) has a recess, this recess is formed by two projections or a hole (74), and described elastic rod promptly embeds in this hole.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP4211915.4 | 1992-04-09 | ||
| DE4211915A DE4211915C2 (en) | 1992-04-09 | 1992-04-09 | Test button arrangement for a residual current or residual current circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1080430A CN1080430A (en) | 1994-01-05 |
| CN1031737C true CN1031737C (en) | 1996-05-01 |
Family
ID=6456451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN93104024A Expired - Fee Related CN1031737C (en) | 1992-04-09 | 1993-04-08 | Test key arrangement for an earth-leakage current circuit-breaker or differential-current circuit-breaker |
Country Status (5)
| Country | Link |
|---|---|
| EP (1) | EP0565008B1 (en) |
| CN (1) | CN1031737C (en) |
| AT (1) | ATE138496T1 (en) |
| DE (2) | DE4211915C2 (en) |
| ES (1) | ES2090752T3 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105510818B (en) * | 2015-12-30 | 2019-02-05 | 三信国际电器上海有限公司 | Breaker and its experimental rig and method |
| CN109507573B (en) * | 2018-07-13 | 2021-06-01 | 西安益翔航电科技有限公司 | High-low temperature performance testing device for circuit breaker |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1059094B (en) * | 1957-10-04 | 1959-06-11 | Voigt & Haeffner Ag | Multipole circuit breaker, especially installation circuit breaker |
| DE1152745B (en) * | 1961-11-15 | 1963-08-14 | Emil Quermann | Test device for circuit breaker |
| FR2437692A1 (en) * | 1978-09-28 | 1980-04-25 | Merlin Gerin | Manually operated circuit breaker with overload cut=out - has earth fault current overload device and reset units as separate components which may be put together later |
| FR2584531B1 (en) * | 1985-07-05 | 1989-01-13 | Telemecanique Electrique | CURRENT LIMITER PROVIDED WITH A DISPLAY ELEMENT |
| FR2609209B1 (en) * | 1986-12-29 | 1994-05-20 | Merlin Et Gerin | BIPOLAR DIFFERENTIAL SWITCH WITH FAULT INDICATOR |
| DE9004196U1 (en) * | 1990-04-11 | 1990-06-13 | Felten & Guilleaume Energietechnik AG, 51063 Köln | Test device for residual current circuit breakers |
-
1992
- 1992-04-09 DE DE4211915A patent/DE4211915C2/en not_active Expired - Fee Related
-
1993
- 1993-04-03 EP EP93105552A patent/EP0565008B1/en not_active Expired - Lifetime
- 1993-04-03 AT AT93105552T patent/ATE138496T1/en not_active IP Right Cessation
- 1993-04-03 DE DE59302648T patent/DE59302648D1/en not_active Expired - Fee Related
- 1993-04-03 ES ES93105552T patent/ES2090752T3/en not_active Expired - Lifetime
- 1993-04-08 CN CN93104024A patent/CN1031737C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| EP0565008A1 (en) | 1993-10-13 |
| EP0565008B1 (en) | 1996-05-22 |
| DE59302648D1 (en) | 1996-06-27 |
| DE4211915C2 (en) | 1995-03-16 |
| CN1080430A (en) | 1994-01-05 |
| ES2090752T3 (en) | 1996-10-16 |
| DE4211915A1 (en) | 1993-10-14 |
| ATE138496T1 (en) | 1996-06-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CA1041649A (en) | Automatic transfer switch | |
| US4983788A (en) | Electric switch mechanism for relays and contactors | |
| US5918361A (en) | Method of assembling a switchable circuit breaker and reducing tease-ability | |
| US6215378B1 (en) | Circuit breaker with dual function test button remote from test circuit | |
| EP2561535B1 (en) | Electric power switch | |
| HU223295B1 (en) | Low voltage multipole circuit breaker with high electrodynamic resistance, whereof the pole shaft is arranged in the compartment housing the poles | |
| CN1031737C (en) | Test key arrangement for an earth-leakage current circuit-breaker or differential-current circuit-breaker | |
| CA3137902A1 (en) | Switchgear with manual trip assembly and mechanical interlock | |
| CA1329822C (en) | Circuit breaker auxiliary switch assembly | |
| FI106075B (en) | Electric switch, especially a load switch or a switch | |
| CN1230853C (en) | Release device for power circuit breaker | |
| CA1240356A (en) | Disconnect switch for high-voltage switching installation | |
| CA2530920C (en) | Switch with improved protection from ice conditions | |
| US7586394B2 (en) | Electrical switching apparatus, and trip actuator reset assembly and lever arm assembly therefor | |
| US6965087B2 (en) | Electric switch | |
| CN1221003C (en) | Circuit protector | |
| US4107487A (en) | Interrupter switch arrangement | |
| CN1302502C (en) | Fault current protective switches | |
| CN212542211U (en) | Control mechanism for controlling and protecting switch electric appliance | |
| CN1140893A (en) | Dual action armature | |
| US5927485A (en) | Auxiliary switch including cam operated, u-shaped leaf spring bridging contact arrangement | |
| CN114429882B (en) | Double-acting switch device | |
| JP3104848B2 (en) | Switch with built-in capacitor for zero-phase voltage detection | |
| CN1052335C (en) | Distribution circuit breakers | |
| US5865304A (en) | Rotary-actuated electrical switch |
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 | ||
| 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 |