CN102818988B - The test device system of earth-fault current or residual current circuit breaker - Google Patents
The test device system of earth-fault current or residual current circuit breaker Download PDFInfo
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- CN102818988B CN102818988B CN201210028858.XA CN201210028858A CN102818988B CN 102818988 B CN102818988 B CN 102818988B CN 201210028858 A CN201210028858 A CN 201210028858A CN 102818988 B CN102818988 B CN 102818988B
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Abstract
Content of the present invention is the test device system of earth-fault current or residual current circuit breaker, test device system comprises a test circuit and a display device, test circuit is for checking the action situation of isolating switch when there is earth-fault current or residual current, display device is used to indicate the disconnection of isolating switch or the state of connection, test circuit and display device two functional module of test device of circuit breaker system are separate separately, two functional modules form from respective part, dynamic fortune state, electric loop does not produce inevitable association, in each functional module course of work, if wherein a module breaks down, cisco unity malfunction, break down and can not affect the normal operation of other parts.
Description
Technical field
The present invention relates to the test device system of low-voltage ground fault current or residual current circuit breaker, test device system comprises a test circuit and a display device.
Test circuit is for checking the action situation of isolating switch when there is earth-fault current or residual current, and display device is used to indicate the disconnection of isolating switch or the state of connection.
Background technology
As everyone knows; all need the isolating switch of the isolating switch, particularly residual current protecting installed for shock hazard protection in low-voltage distribution system, isolating switch has a test unit usually; regularly isolating switch is tested for user, normal to ensure residual current protecting function.
CN1031737C discloses the feeler switch device of a kind of earth leakage current isolating switch or difference current isolating switch, this feeler switch device has test leakage current breaker actuation function and indicator, and can learn that scheme disclosed in CN1031737C can well solve Deutsches Reichs-Patent DE4.001 from information disclosed in CN1031737C, when disclosed in 680A1, isolating switch is in open position, the problem that pressing test button hookup is still connected and test resistance is burnt out, but be that the elastic component of test loop with indicator work is meshed in scheme disclosed in CN1031737C, if when there is elastic component fault or manufacturing defect, test loop and indicator will all cannot work.
Test loop is designed to the form of biswitch by the present invention by special-shaped torsion spring, well solve Deutsches Reichs-Patent DE4.001, situation about still connecting by compression testing device test loop when product disclosed in 680A1 disconnects, and crucial part of the present invention is also test loop and indicator work to be separated into two non-interference functional modules, working principle and the mutual not cadre of the course of work relate to, to the contact of test loop with disconnect setting can mistake proofing measure, carry out spacing to the path of indicator work, the motion state of actuator is limited, confirm the relation only occurring " 0 " or " 1 ".
Summary of the invention
Content of the present invention is the test device system of earth-fault current or residual current circuit breaker, test device system comprises a test circuit and a display device, test circuit is for checking the action situation of isolating switch when there is earth-fault current or residual current, display device is used to indicate the disconnection of isolating switch or the state of connection, test circuit and display device two functional module of test device of circuit breaker system are separate separately, two functional modules form from respective part, dynamic fortune state, electric loop does not produce inevitable association, in each functional module course of work, if wherein a module breaks down, cisco unity malfunction, break down and can not affect the normal operation of other parts.
Test circuit of the present invention contains one can the square testing button of self-replaced type, and testing button can by just moving downward perpendicular to the direction at isolating switch top, test device system work is started by pressing square testing button, when the acting force acting on square button disappears, square testing button can automatically return to the reference position of pressing.
Square testing button is positioned by the supporting member be fixed in mechanism, and locator meams carries out the fixing of upward direction by the barb that L shape barb is corresponding with supporting member correspondence position of on square button, square testing button has a square column type guidepost, for the guiding of square shaped button in pressing process to spacing, there is an inverted U-shaped groove on square testing button side, have one end straight-arm of a special-shaped torsion spring upwards torsion put on square testing button, breaker upper cover end face is upwards exposed during to make square testing button normal, after this button of pressing, reset also is lean on the torsion of torsion spring and realize.
Abnormity torsion spring is positioned by the right cylinder on supporting member, and one end straight-arm of torsion spring is placed in the inverted U-shaped groove of of square button side, and the other end is L-shaped, is placed between the slideway between supporting member location small column and rotating shaft.
Test device system of the present invention has a display device, by the state of the window display circuit breaker contact point of breaker upper cover, the principle of work design of display device has nothing to do with the motion of circuit breaker handle and stop position, the principle of work of display device and the test circuit work of test device system have nothing to do, the work of display device is only corresponding with the location status of contact, and the location status of circuit breaker contact point is only connect or be separated two kinds of situations, the design of isolating switch ensure that contact does not allow the third situation occurred except connecting or being separated.
Display device carrys out work by the indicator of a motion, the location place of indicator is designed with the barb apparatus of a cylindrical hollow, barb apparatus is embedded in the convex closure circular hole of mechanism's side plate, to carry out maintenance to indicator, there is a circular hole indicator lower end, one end of one elastic component is through this circular hole, as the power resources of indicator motion, the other end of elastic component is embedded in the groove in rotating shaft centre position, the spacing place of side plate is designed with the possibility preventing elastic component from jumping out in groove, rotating shaft can be rotated with the change of contact state, the rotation of rotating shaft will take elastic component motion to, elastic component drives indicator to move again, the different state of indicator just shows in lid window on-board the circuit breaker.
Connecting point position state is better shown in order to make display device, mechanism's side plate has initial point and the terminal anchor point of two place's indicator movement positions, energy anchor point place only can be stopped making indicator, namely when if other part in display device breaks down or defect time, the duty of display device can not be affected, evaded the risk that malfunction may appear in display device.
Accompanying drawing explanation
Following key diagram is in order to state the inventive concept of the test device system of earth-fault current or residual current circuit breaker:
The outside drawing of Fig. 1 earth-fault current or residual current circuit breaker
Fig. 2 earth-fault current or residual current circuit breaker test device system stereographic map
The graph of a relation of the square testing button of Fig. 3 and positioning support bearing member
Fig. 4 abnormity torsion spring outside drawing
The square testing button of Fig. 5 and positioning support bearing member and special-shaped torsion spring interactively figure
The square testing button test mode figure of Fig. 6
Test loop graph of a relation when Fig. 7 contact is in released state
Test loop graph of a relation when Fig. 8 contact is in contact condition
Display device constitutional diagram when Fig. 9 contact is in contact condition
Display device constitutional diagram when Figure 10 contact is in released state
Figure 11 indicator limit point graph of a relation
Embodiment
Content of the present invention is the test device system of earth-fault current or residual current circuit breaker, test device system comprises a test circuit and a display device, test circuit is for checking the action situation of isolating switch when there is earth-fault current or residual current, display device is used to indicate the disconnection of isolating switch or the state of connection, test circuit and display device two functional module of test device of circuit breaker system are separate separately, two functional modules form from respective part, dynamic fortune state, electric loop does not produce inevitable association, in each functional module course of work, if wherein a module breaks down, cisco unity malfunction, break down and can not affect the normal operation of other parts.
As shown in Fig. 1 ~ 11, of the present invention specifically execute mode be test circuit contain one can the square testing button 1 of self-replaced type, and testing button 1 can by just moving downward perpendicular to the direction at isolating switch top, test device system work is started by pressing square testing button, when the acting force acting on square button disappears, square testing button can automatically return to the reference position of pressing, as shown in Figure 1.
Square testing button 1 is positioned by the supporting member 7 be fixed in mechanism, and locator meams carries out the fixing of upward direction by the barb that L shape barb is corresponding with supporting member 7 correspondence position of on square button 1, square testing button 1 has a square column type guidepost, for the guiding of square shaped button 1 in pressing process to spacing, as shown in Figure 3.
There is an inverted U-shaped groove 1b on square testing button 1 side, have one end straight-arm 9a of a special-shaped torsion spring 9 upwards torsion put on square testing button 1, breaker upper cover end face is upwards exposed during to make square testing button 1 normal, after this button 1 of pressing, resetting also is lean on the torsion of torsion spring 9 and realize, as shown in Figure 5 and Figure 6.
Abnormity torsion spring 9 is positioned by the right cylinder 7b on supporting member 7, and one end straight-arm 9a of special-shaped torsion spring 9 is placed in the inverted U-shaped groove 1b of of square testing button 1 side; The L-shaped 9b of the other end, is placed between slideway 8a that supporting member 7 locates between small column 7c and rotating shaft 8.
Abnormity torsion spring 9 act as the effect of biswitch in whole test circuit, namely be when isolating switch is in off-state, break 3 and movable contact 4 are separated, the L-shaped end 9b of torsion spring 9 is placed between the slideway 8a that supporting member 7 locates between small column 7c and rotating shaft 8, be separated with the fastener 5 of location movable contact 4, namely do not contact, when pressing square testing button 1 at this moment, even if the Z-shaped end 9a of special-shaped torsion spring 9 contacts with fixation test resistance lead end 7a, test loop is not because torsion spring L shape end 9b contacts with conduction fastener 5 and makes test loop not conducting, test macro cannot work, when open circuit is along when being in on-state, as shown in Figure 7.
Break 3 contacts with movable contact 4, the L-shaped end 9b of torsion spring 9 is placed between the slideway 8a that supporting member 7 locates between small column 7c and rotating shaft 8, " kill " with the protruding end 5a phase of the fastener 5 of location movable contact 4, L shape end 9b contacts with buckle 5, and this design is for ensureing that contact is reliable, when pressing square testing button 1, the Z-shaped end 9a of abnormity torsion spring 9 contacts with fixation test resistance lead end 7a, test loop is connected, and test device system is started working, as shown in Figure 8.
The display device of test device system of the present invention, the state of circuit breaker contact point is shown by the window 2 of breaker upper cover, the principle of work design of display device has nothing to do with the motion of circuit breaker handle 12 and stop position, the principle of work of display device and the test circuit work of test device system have nothing to do, the work of display device is only corresponding with the location status of contact, and the location status of circuit breaker contact point is only connect or be separated two kinds of situations, the design of isolating switch ensure that contact does not allow the third situation occurred except connecting or being separated.Display device is worked by the indicator 6 of a motion, the location place of indicator is designed with the barb apparatus 6a of a cylindrical hollow, barb apparatus 6a is embedded in the convex closure circular hole of mechanism's side plate 10, to carry out maintenance to indicator 6, there is a circular hole indicator 6 lower end, one end 11a of one elastic component 11 is through this circular hole, as the power resources that indicator 6 moves, the other end 11b of elastic component 11 is embedded in the groove 8b in rotating shaft 8 centre position, the spacing place of side plate 10 is designed with the possibility preventing elastic component 11 from jumping out in groove 8b, rotating shaft 8 can be rotated with the change of contact state, the rotation of rotating shaft 8 will be taken elastic component 11 to and move, elastic component 11 drives indicator 6 to move again, the different state of indicator 6 is display in lid window 2 on-board the circuit breaker just, as shown in Figure 9 and Figure 10.
Connecting point position state is better shown in order to make display device, mechanism's side plate 10 has initial point 10a and the terminal 10b anchor point of two place's indicator 6 movement positions, energy anchor point place only can be stopped making indicator 6, namely when if other part in display device breaks down or defect time, the duty of display device can not be affected, evade the risk that malfunction may appear in display device, as shown in figure 11.
Claims (5)
1. the test device system of earth-fault current or residual current circuit breaker, test device system comprises a test circuit and a display device, test circuit is for checking the action situation of isolating switch when there is earth-fault current or residual current, display device is used to indicate the disconnection of isolating switch or the state of connection, test circuit and display device two functional module of test device of circuit breaker system are separate separately, two functional modules form from respective part, dynamic fortune state, electric loop does not produce inevitable association, in each functional module course of work, if wherein a module breaks down, cisco unity malfunction, break down and can not affect the normal operation of other parts,
Described test circuit contains one can the square testing button (1) of self-replaced type, and square testing button (1) can by just moving downward perpendicular to the direction at isolating switch top, test device system work is started by pressing square testing button, when the acting force acting on square testing button disappears, square testing button can automatically return to the reference position of pressing;
Described square testing button (1) is positioned by the supporting member (7) be fixed in mechanism, and locator meams carries out the fixing of upward direction by the barb that a L shape barb on square testing button (1) is corresponding with supporting member (7) correspondence position, square testing button (1) has a square column type guidepost, for the guiding of square shaped testing button (1) in pressing process to spacing, there is an inverted U-shaped groove (1b) on square testing button (1) side, have one end straight-arm (9a) of a special-shaped torsion spring (9) upwards torsion put on square testing button (1), breaker upper cover end face is upwards exposed during to make square testing button (1) normal, after this square testing button (1) of pressing, reset also is lean on the torsion of special-shaped torsion spring (9) and realize,
Described special-shaped torsion spring (9) is positioned by the right cylinder (7b) on supporting member (7), one end straight-arm (9a) of abnormity torsion spring (9) is in Z-shaped, be placed in the groove (1b) that of square testing button (1) side is inverted U-shaped, the other end L-shaped (9b) of abnormity torsion spring (9), is placed between the slideway (8a) between supporting member (7) location small column (7c) and rotating shaft (8).
2. the test device system of earth-fault current according to claim 1 or residual current circuit breaker, abnormity torsion spring (9) act as the effect of biswitch in whole test circuit, namely be when isolating switch is in off-state, break (3) and movable contact (4) are separated, L shape end (9b) of abnormity torsion spring (9) is placed between the slideway (8a) between supporting member (7) location small column (7c) and rotating shaft (8), be separated with the fastener (5) of location movable contact (4), namely do not contact, when pressing square testing button (1) at this moment, even if the Z-shaped end (9a) of special-shaped torsion spring (9) contacts with fixation test resistance lead end (7a), test loop makes test loop not conducting because the L shape of special-shaped torsion spring holds (9b) not contact with conduction fastener (5), test macro cannot work, when isolating switch is in on-state, break (3) contacts with movable contact (4), L shape end (9b) of abnormity torsion spring (9) is placed between the slideway (8a) between supporting member (7) location small column (7c) and rotating shaft (8), " kill " with protruding end (5a) phase of the fastener (5) of location movable contact (4), L shape end (9b) of abnormity torsion spring (9) contacts with fastener (5), this design is for ensureing that contact is reliable, when pressing square testing button (1), the Z-shaped end (9a) of abnormity torsion spring (9) contacts with fixation test resistance lead end (7a), test loop is connected, test device system is started working.
3. the test device system of earth-fault current according to claim 1 or residual current circuit breaker, test device system has a display device, by the state of window (2) the display circuit breaker contact point of breaker upper cover, the principle of work design of display device has nothing to do with the motion of circuit breaker handle (12) and stop position, the principle of work of display device and the test circuit work of test device system have nothing to do, the work of display device is only corresponding with the location status of contact, and the location status of circuit breaker contact point is only connect or be separated two kinds of situations, the design of isolating switch ensure that contact does not allow the third situation occurred except connecting or being separated.
4. the test device system of earth-fault current according to claim 1 or residual current circuit breaker, display device carrys out work by the indicator (6) of a motion, the location place of indicator is designed with the barb apparatus (6a) of a cylindrical hollow, barb apparatus (6a) is embedded in the convex closure circular hole of mechanism's side plate (10), to carry out maintenance to indicator (6), there is a circular hole indicator (6) lower end, one end (11a) of one elastic component (11) is through this circular hole, as the power resources that indicator (6) moves, the other end (11b) of elastic component (11) is embedded in the groove (8b) in rotating shaft (8) centre position, side plate (10) spacing place is designed with the possibility preventing elastic component (11) from jumping out in groove (8b), rotating shaft (8) can be rotated with the change of contact state, the rotation of rotating shaft (8) will take elastic component (11) motion to, elastic component (11) drives indicator (6) to move again, the state just middle display of lid window (2) on-board the circuit breaker that indicator (6) is different.
5. the test device system of earth-fault current according to claim 4 or residual current circuit breaker, connecting point position state is better shown in order to make display device, mechanism's side plate (10) has initial point (10a) and terminal (10b) anchor point of two place's indicator (6) movement positions, energy anchor point place only can be stopped making indicator (6), namely when if other part in display device breaks down or defect time, the duty of display device can not be affected, evaded the risk that malfunction may appear in display device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028858.XA CN102818988B (en) | 2012-01-21 | 2012-01-21 | The test device system of earth-fault current or residual current circuit breaker |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028858.XA CN102818988B (en) | 2012-01-21 | 2012-01-21 | The test device system of earth-fault current or residual current circuit breaker |
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| CN102818988A CN102818988A (en) | 2012-12-12 |
| CN102818988B true CN102818988B (en) | 2016-01-20 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN104409292B (en) * | 2014-12-05 | 2017-02-22 | 温州艾科电器科技有限公司 | Residual current circuit breaker |
| 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 |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056372A (en) * | 1990-04-11 | 1991-11-20 | 费尔腾和古伊勒奥梅能源股份公司 | The checkout gear of failure current protection switch |
| TW392185B (en) * | 1991-07-22 | 2000-06-01 | Pdl Holdings Ltd | A switch mechanism and a residual current device |
| CN2517104Y (en) * | 2000-12-06 | 2002-10-16 | Lg产电株式会社 | Earth leakage circuit breaker |
| CN201359977Y (en) * | 2009-03-06 | 2009-12-09 | 浙江德隆电器有限公司 | Test button of small-sized residual current circuit breaker |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3017645B2 (en) * | 1994-11-15 | 2000-03-13 | 松下電工株式会社 | Earth leakage breaker |
| US8971055B2 (en) * | 2008-12-16 | 2015-03-03 | Schneider Electric USA, Inc. | Residential circuit breaker with flexible printed circuit boards |
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2012
- 2012-01-21 CN CN201210028858.XA patent/CN102818988B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1056372A (en) * | 1990-04-11 | 1991-11-20 | 费尔腾和古伊勒奥梅能源股份公司 | The checkout gear of failure current protection switch |
| TW392185B (en) * | 1991-07-22 | 2000-06-01 | Pdl Holdings Ltd | A switch mechanism and a residual current device |
| CN2517104Y (en) * | 2000-12-06 | 2002-10-16 | Lg产电株式会社 | Earth leakage circuit breaker |
| CN201359977Y (en) * | 2009-03-06 | 2009-12-09 | 浙江德隆电器有限公司 | Test button of small-sized residual current circuit breaker |
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Denomination of invention: Test device system for earth fault current or residual current circuit breaker Effective date of registration: 20230131 Granted publication date: 20160120 Pledgee: China Minsheng Banking Corp Shanghai branch Pledgor: SASSIN INTERNATIONAL ELECTRIC SHANGHAI Co.,Ltd. Registration number: Y2023310000013 |
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