CN101958213B - Lock releasing mechanism of residual current operated circuit breaker - Google Patents
Lock releasing mechanism of residual current operated circuit breaker Download PDFInfo
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- CN101958213B CN101958213B CN 200910160060 CN200910160060A CN101958213B CN 101958213 B CN101958213 B CN 101958213B CN 200910160060 CN200910160060 CN 200910160060 CN 200910160060 A CN200910160060 A CN 200910160060A CN 101958213 B CN101958213 B CN 101958213B
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- handle
- linkage piece
- lock releasing
- torsion spring
- residual current
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Abstract
The invention provides a lock releasing mechanism of a residual current operated circuit breaker. The lock releasing mechanism comprises a shell, a handle, a handle torsion spring, a test button and a linkage sheet. The handle is provided with a limit bump; the test button is provided with a stop bump; the linkage sheet is arranged between the handle and the handle torsion spring and comprises a body, a centre hole, a groove, a force transfer bump and a track; the track of the linkage sheet is positioned in the body of the linkage sheet and comprises an inner side part close to the centre hole and an outer side part positioned on the radial outer side of the inner side part; and a circumferential spacer is arranged between the inner side start end surface of the inner side part and the outer side start end surface of the outer side part. The lock releasing mechanism enables the handle to be instantaneously locked at the position required by the design while ensuring reliable disconnection of a contact by controlling the motion state of the handle, and avoids hurt to fingers of an operator caused by handle resilience during leakage test.
Description
Technical field
The present invention relates to the hub lock releasing of a kind of residual current action breaker (RCBO); specifically; for in a modularization shell of circuit breaker; realize overload, short circuit and the creepage protection function of circuit breaker; and can connect as required different annexes, the invention provides a kind of hub lock releasing for the RCD handle.
Background technology
In a modularization shell of residual current action breaker (RCBO); in order to realize simultaneously overload, short circuit and the earth leakage protective of circuit breaker; can connect among the RCBO such as various attachment members such as earth leakage protective annexes; but be limited to the restriction in breaker body space; need handle and testing button are placed homonymy in design, limited space makes the position of handle motion stroke and user's operational testing button have certain space interference.
Usually after RCBO installs wiring, press testing button, make once of short duration artificial electric leakage, can move with the check earth leakage protective device.This test will regularly be carried out, and guarantees that its creepage protection function is normal.If RCBO is working properly, produce leakage trigger this moment, and handle will be returned to open position from test position.When handle turned to open position from test position, the finger that the operator is testing was probably hit by the resilience handle, damages.
Summary of the invention
The present invention aims to provide the hub lock releasing of a kind of residual current action breaker (RCBO), makes the operator when carrying out the creepage protection function test, and handle can stop at a latched position from the resilience of test position, thereby avoids hurting the operator.
For achieving the above object, the invention provides a kind of hub lock releasing of residual current action breaker, it comprises the shell of a residual current action breaker, a handle, a handle torsion spring, a testing button and a linkage piece.The residual current action breaker shell is provided with an installation shaft and a locating piece; Handle is arranged on the installation shaft, has a spacing block set on the handle; The handle torsion spring is installed on the installation shaft, and the one end is clamped in a side of the locating piece of residual current action breaker shell; Testing button has one and prevents projection; Linkage piece is arranged between shell and the handle torsion spring.This linkage piece comprises the body of a plate-like, centre bore, a groove, a power transmission projection and a track that is positioned at the body middle part.Centre bore is set on the installation shaft; Groove is depressed in body card part outer peripheral edges, and the spacing block set of handle places this groove; The power transmission projection protrudes from the card of linkage piece body, and the power transmission projection is perpendicular to the other end clamping by the handle torsion spring of a side of linkage piece card; The linkage piece track, be positioned at linkage piece card body, this track comprises one near the inside part and the Outboard Sections that is positioned at the inside part radial outside of centre bore, has circumferential interval between the initial end face in the outside of the inboard initial end face of inside part and Outboard Sections.
When carrying out leakage tests, handle drives linkage piece and rotates, and the prevention projection of testing button is along the rail moving on the linkage piece card.When the operator pressed testing button, the prevention projection of testing button placed the Outboard Sections of track, and during leakage tests, linkage piece is subject to preventing the projection effect to limit the resilience of handle, thereby kept relative static with testing button.
Hub lock releasing according to another kind of residual current action breaker of the present invention, described handle is provided with an engagement groove, the described power transmission projection of described engagement groove and described linkage piece adapts, wherein the circumferential lengths of linkage piece groove is greater than the circumferential lengths of handle spacing block set, and the circumferential lengths of linkage piece power transmission projection is less than the circumferential lengths of handle engagement groove.Can guarantee that like this handle can produce relative motion with linkage piece when linkage piece is locked.
Hub lock releasing according to another residual current action breaker of the present invention, wherein also comprise a restriction flange that protrudes from body card part outer peripheral edges on the linkage piece, this restriction flange is resisted against on the residual current action breaker shell, to limit the initial position of linkage piece, to limit the initial position of linkage piece, be convenient to the installation location of hub lock releasing.
According to the hub lock releasing of another residual current action breaker of the present invention, wherein the lower end of testing button also is provided with a test torsion spring, in order to the return of testing button.
The hub lock releasing of residual current action breaker provided by the invention, because the track of linkage piece is divided into inside part and Outboard Sections, motion by parts such as linkage piece, handle, testing buttons, by preventing the change of projection track of living in, Snap lock and release to handle have been realized; And when carrying out other action need handles switchings, only move at the inside part of track because preventing projection, can guarantee not interfere.
By the motion state of joystick, when guaranteeing that contact is reliable and disconnecting so that handle can Snap lock in the position of designing requirement, thereby solved the problem that finger is hit in handle resilience when the operator carries out the creepage protection function test.By changing position and the size of outside track, can obtain the latched position under different the requirement, be applicable to different type of machines to the different requirements of latched position, and saved the interiors of products space.
Description of drawings
The following drawings is only done the present invention and is schematically illustrated and explain, not delimit the scope of the invention, wherein:
Fig. 1 is the structural representation of a kind of linkage piece in the hub lock releasing of a kind of residual current action breaker of the present invention;
Fig. 2 is the perspective exploded view of the hub lock releasing of a kind of residual current action breaker of the present invention;
Fig. 3 is the view of carrying out the hub lock releasing of the front a kind of residual current action breaker of the present invention of leakage tests;
Fig. 4 is handle when placing test position, the view of the hub lock releasing of residual current action breaker shown in Figure 4;
Fig. 5 is after pressing testing button, the view of the hub lock releasing of residual current action breaker shown in Figure 4;
Fig. 6 is after unclamping testing button, the view of the hub lock releasing of residual current action breaker shown in Figure 4.
Label declaration
10 handles, 11 spacing block sets, 12 engagement grooves
20 testing buttons 21 are prevented projection 22 test torsion springs
30 handle torsion springs, 31 shell bare terminal ends, 32 linkage piece bare terminal ends
40 linkage pieces
41 bodies, 42 centre bores, 43 grooves
44 power transmission projections 46 limit flange 45 tracks
451 inside parts, 452 Outboard Sections
453 inboard initial end faces
The initial end face in 454 outsides
455 termination endfaces
50 residual current action breaker shells
51 installation shaft, 52 locating pieces
Embodiment
Understand for technical characterictic of the present invention, purpose and effect being had more clearly, now contrast description of drawings the specific embodiment of the present invention, identical label represents identical part in each figure.
Fig. 1 is the structural representation of a kind of linkage piece in the hub lock releasing of a kind of residual current action breaker of the present invention.This linkage piece 40 comprises a body 41, and this body is plate-like, for ease of the manufacturing of installing, is discoid substantially usually.For ease of explanation, hereinafter, be called radially along the direction of the radius of card, be called circumferentially along the direction of the circumference of card.Body 41 middle parts are provided with a centre bore 42, and this centre bore can be set on the installation shaft of residual current action breaker.Be provided with a power transmission projection 44 in the card of body 41 near the position of outer peripheral edges, power transmission projection 44 protrudes from the card of body 41.Also be provided with a track 45 on the card of body 41, this track circumferentially arranges along the card of body 41.Track 45 comprises an inside part 451 and an Outboard Sections 452, inside part 451 is near centre bore 42, and has an inboard initial end face 453 radially, Outboard Sections 452 is positioned at the radial outside of inside part 451, and have an initial end face 454 in the outside radially, have circumferential interval between the initial end face 454 of inboard initial end face 453 and the outside.The inside part 451 of track 45 and Outboard Sections 452 can have same termination endface 455 as shown in Figure 1, also can have respectively different position termination endfaces.As shown in Figure 1, also be provided with a groove 43 at the outer peripheral edges place of linkage piece 40 bodies.
In the embodiment of a kind of residual current action breaker of the present invention, can be provided with in the card edge of body 41 one and limit flange 46, this restriction flange protrudes from the card part outer peripheral edges of body 41.
Fig. 2 is the three-dimensional exploded view of the hub lock releasing of a kind of RCD of the present invention; as shown in the figure, this hub lock releasing comprises a residual current action breaker shell 50, a linkage piece 40, a handle torsion spring 30, a testing button 20 and a handle 10.Comprise an installation shaft 51 and a locating piece 52 on the shell 50.The centre bore of linkage piece 40 is set on the installation shaft 51, and handle torsion spring 30 also is set on the installation shaft 51, and an end of handle torsion spring 30 is shell bare terminal end 31, and the other end is linkage piece bare terminal end 32.The shell bare terminal end 31 of handle torsion spring 30 is clamped in a side of the locating piece 52 of shell 50, and linkage piece bare terminal end 32 then is clamped in a side of the power transmission projection 44 of linkage piece 40.Under the drive of linkage piece 40 at handle, when rotating along the F of arrow shown in Fig. 2, handle torsion spring 30 can produce distortion; After the power that causes linkage piece to be rotated along the F direction disappeared, the elastic force of handle torsion spring 30 can help the linkage piece return.Handle 10 is arranged on the installation shaft 51 of shell 50.If limit flange 46 with one on the linkage piece 40, it can be resisted against on the shell 50 corresponding location structures, the initial alignment when being convenient to linkage piece 40 installation.
Now be described in detail in the hub lock releasing of a kind of residual current action breaker of the present invention handle 10, testing button 20, the mutual alignment relation between handle torsion spring 30 and the linkage piece 40 in conjunction with Fig. 3.For clarity sake, Fig. 3 shows along the rear of the paper of Fig. 2, and therefore, in the figure that shows, shown in the arrow F is same direction, but is opposite in Fig. 2 and Fig. 3.
As shown in Figure 3, handle 10 is provided with an engagement groove 12, and engagement groove 12 adapts with the power transmission projection 44 of linkage piece 40, and when handle 10 rotated along the direction shown in the arrow F among the figure, handle 10 can drive linkage piece 40 and rotate along the direction shown in the arrow F.Also have a spacing block set 11 on the handle 10, this spacing block set 11 places the groove 43 of linkage piece 40.As shown in the figure, testing button 20 comprises that is prevented a projection 21, and the track 45 of the shape of this prevention projection 21 and linkage piece 40 adapts, and during installation, prevents projection 21 to be installed in the inside part 451 that is embedded in track 45, and near inboard initial end face 453.
Describe the course of work of the hub lock releasing of a kind of residual current action breaker of the present invention in detail below in conjunction with Fig. 3 to Fig. 6.
Fig. 3 is the view of the hub lock releasing of a kind of residual current action breaker of the present invention before carrying out leakage tests.When needs are tested the creepage protection function of residual current action breaker; at first along the direction of arrow F among the figure handle 10 is pulled test position; because the engagement groove 12 of handle 10 combines with the power transmission projection 44 of linkage piece 40; power transmission projection 44 is subject to the effect of engagement groove 12 end faces, so that linkage piece 40 is rotated with handle 10.The prevention projection 21 of testing button 20, its initial position are arranged in the inside part 451 of the track 45 of linkage piece 40.
When handle 10 places test position shown in Figure 4, the spacing block set 11 of handle 10 is resisted against the groove 43 of linkage piece 40 away from a side of testing button 20, simultaneously, because the rotation of linkage piece 40, the initial end face 454 in the outside that the prevention projection 21 of testing button 20 moves to Outboard Sections 452 from the inboard initial end face 453 of the inside part 451 of track 45.When the operator presses testing button 20, prevent projection 21 to transfer to the Outboard Sections 452 of track 45 from the inside part 451 of track 45, and be resisted against on the initial end face 454 in the outside of track 45.
As shown in Figure 4; after pressing testing button 20 along direction shown in the arrow P; if the creepage protection function of this residual current action breaker is normal; then handle 10 can be at once along the rapid resilience of direction of arrow R shown in Figure 5; at this moment; although linkage piece 40 can be subject to the effect of handle torsion spring 30 elastic forces; but owing to preventing projection 21 to be resisted against on the initial end face 454 in the outside; so linkage piece 40 can't be rotated along arrow R with handle 10; if the circumferential lengths of groove 43 is greater than the circumferential lengths of spacing block set 11 at this moment; the circumferential lengths of engagement groove 12 is greater than when work circumferential lengths greater than power transmission projection 44; then can produce limited relatively rotating between handle 10 and the linkage piece 40; be that spacing block set 11 can be in groove 43 interior movements, power transmission projection 44 can be in engagement groove 12 interior movements.
The spacing block set 11 of handle 10 moves in the space that the groove 43 of linkage piece 40 limits, and through a bit of circumferential movement, spacing block set 11 moves to groove 43 near a side end face of testing buttons.At this moment, spacing block set 11 is subject to the restriction of groove 43, makes handle 10 stop resilience, can't directly be returned on the position as shown in Figure 3, thereby avoid the handle 10 of rapid resilience to hurt the operator.
Can understand thus, the outside original position in track 45 outsides is latched position.Circumferential lengths and the outside original position 454 of the Outboard Sections 452 by changing track 45 can obtain adapting to the latched position of different product specification, and save the interiors of products space.And handle 10 prevents projection 21 only in inside part 451 motions of track 45 in other whens operation of carrying out except detection of electrical leakage, can guarantee that handle 10 and testing button 20 detect and do not interfere when outer other operate going out leak source.
Fig. 6 is after unclamping testing button, the view of the hub lock releasing of residual current action breaker shown in Figure 3.As shown in Figure 6, in the lower end of testing button 20, can be provided with a test torsion spring 22, an end of this test torsion spring is clamped in the lower end of testing button 20.Of short duration press testing button 20 and finish the creepage protection function test of residual current action breaker after; the operator unclamps testing button 20; the lower end of testing button 20 is subject to testing the effect of torsion spring 22, upwards lifts along diagram B direction and is returned to the front position of test.
Simultaneously, 20 prevention projection 21 leaves super top, outside face 454 on the testing button, comes back to the inside part 451 of track 45 from the Outboard Sections 452 of track 45, prevents the motion of projection 21 no longer to be subjected to initial end face 454 restrictions in the outside, and locking is discharged.Linkage piece 40 is under the effect of the elastic force of handle torsion spring 30, promote the promotion of power transmission projection 44 handle torsion springs 30, linkage piece 40 is rotated along the direction shown in Fig. 6 arrow R, and rotate along the direction of arrow R together with fixed handle 10 simultaneously, finally be returned to open mode shown in Figure 3, thereby finish whole leakage tests process.
The hub lock releasing of residual current action breaker of the present invention is lower with the effect of cooperatively interacting of handle 10, testing button 20 etc. by linkage piece 40, the motion state of joystick 10, can guarantee that residual current action breaker is when carrying out leakage tests, handle 10 can one not be met leakage trigger, just directly spring back at once initial position, thereby avoided and to have pointed the injury that causes to the operator.
Above listed a series of detailed description only is specifying for feasibility embodiment of the present invention; they are not to limit protection scope of the present invention, allly do not break away from equivalent embodiment or the change that skill spirit of the present invention does and all should be included within protection scope of the present invention.
Claims (4)
1. the hub lock releasing of a RCD comprises:
The shell of a residual current action breaker, this shell are provided with an installation shaft and a locating piece;
A handle that is arranged on the described installation shaft has a spacing block set on the described handle;
A handle torsion spring that is sleeved on the described installation shaft, an end of this handle torsion spring is clamped in a side of described locating piece;
A testing button, this test knob have one and prevent projection;
It is characterized in that, this hub lock releasing comprises that also places the linkage piece between described shell and the described handle torsion spring, and this linkage piece comprises:
The body of a plate-like;
A centre bore that is positioned at described body middle part, this centre bore is set on the described installation shaft;
A groove that is depressed in described body card part outer peripheral edges, described spacing block set places described groove;
A power transmission projection that places on the described body and protrude from described body card, this power transmission projection matches with described handle, and this power transmission projection is perpendicular to the other end clamping by described handle torsion spring of a side of card;
Article one, the track that circumferentially arranges along described body, this track comprises one near the inside part of described centre bore with at the Outboard Sections of described inside part radial outside, has circumferential interval between the initial end face of described inside part and described Outboard Sections.
2. the hub lock releasing of RCD as claimed in claim 1; it is characterized in that; described handle is provided with an engagement groove; the described power transmission projection of described engagement groove and described linkage piece adapts; the circumferential lengths of the described groove of described linkage piece is greater than the circumferential lengths of the described spacing block set of described handle, and the circumferential lengths of the described power transmission projection of described linkage piece is less than the circumferential lengths of the described engagement groove of described handle.
3. the hub lock releasing of RCD as claimed in claim 1 or 2; it is characterized in that; also comprise a restriction flange that protrudes from described body card part outer peripheral edges on the described linkage piece; this restriction flange is resisted against on the described shell, to limit the initial position of linkage piece.
4. the hub lock releasing of RCD as claimed in claim 3 is characterized in that, the lower end of described testing button is provided with a test torsion spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910160060 CN101958213B (en) | 2009-07-20 | 2009-07-20 | Lock releasing mechanism of residual current operated circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200910160060 CN101958213B (en) | 2009-07-20 | 2009-07-20 | Lock releasing mechanism of residual current operated circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101958213A CN101958213A (en) | 2011-01-26 |
| CN101958213B true CN101958213B (en) | 2013-04-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200910160060 Active CN101958213B (en) | 2009-07-20 | 2009-07-20 | Lock releasing mechanism of residual current operated circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101958213B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ITMI20120884A1 (en) * | 2012-05-22 | 2013-11-23 | Gewiss Spa | DIFFERENTIAL SWITCH WITH AUTOTEST DEVICE |
| CN103515159B (en) * | 2012-06-28 | 2015-09-23 | 三信国际电器上海有限公司 | Circuit breaker fast closing mechanism |
| CN104167307B (en) * | 2014-07-16 | 2016-01-13 | 浙江天正电气股份有限公司 | With the circuit breaker of split handle |
| CN107026031A (en) * | 2017-05-05 | 2017-08-08 | 佳电气有限公司 | instantaneous closing structure and switching device |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10124353A1 (en) * | 2001-05-18 | 2002-12-05 | Siemens Ag | Switch mechanism for protective switch has locking device and release lever integrated into switch handle |
| CN101090052A (en) * | 2006-05-23 | 2007-12-19 | 富士电机机器制御株式会社 | Creepage breaker |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008159456A (en) * | 2006-12-25 | 2008-07-10 | Fuji Electric Fa Components & Systems Co Ltd | Ground-fault interrupter |
-
2009
- 2009-07-20 CN CN 200910160060 patent/CN101958213B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10124353A1 (en) * | 2001-05-18 | 2002-12-05 | Siemens Ag | Switch mechanism for protective switch has locking device and release lever integrated into switch handle |
| CN101090052A (en) * | 2006-05-23 | 2007-12-19 | 富士电机机器制御株式会社 | Creepage breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101958213A (en) | 2011-01-26 |
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