CN102818988A - Testing device system of circuit breaker for earth fault currents or residual currents - Google Patents
Testing device system of circuit breaker for earth fault currents or residual currents Download PDFInfo
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- CN102818988A CN102818988A CN201210028858XA CN201210028858A CN102818988A CN 102818988 A CN102818988 A CN 102818988A CN 201210028858X A CN201210028858X A CN 201210028858XA CN 201210028858 A CN201210028858 A CN 201210028858A CN 102818988 A CN102818988 A CN 102818988A
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Abstract
The invention relates to a testing device system of a circuit breaker for earth fault currents or residual currents. The testing device system comprises a testing circuit and a display device, wherein the testing circuit is used for checking actions of the circuit breaker when earth fault currents or residual currents occur, the display device is used for indicating off or on conditions of the circuit breaker, the two functional modules of the testing circuit and the display device of the testing device system are mutually independent and have no necessary association in part composition, moving state and electrical circuit, during operation of each functional module, and if one module has a failure and cannot operate normally, normal operation of other parts cannot be affected by the failure.
Description
Technical field
The test device system test device system that the present invention relates to low pressure earth-fault current or residual current circuit breaker comprises a test circuit and a display device.
Test circuit is used to check the action situation of isolating switch when earth-fault current or residual current occurring, and display device is used to indicate the state of the disconnection or the connection of isolating switch.
Background technology
As everyone knows; In low-voltage distribution system the isolating switch of the isolating switch, particularly residual current protecting that are used for shock hazard protection need be installed all, isolating switch all has a test unit usually; Supply the user regularly isolating switch to be tested, normal to guarantee the residual current protecting function.
CN 1031737C 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 isolating switch holding function and indicator; And can learn that from the disclosed information of CN 1031737C the disclosed scheme of CN 1031737C can well solve DP DE4.001; When the disclosed isolating switch of 680 A1 is in open position; Push that the test button hookup is still connected and problem that test resistance is burnt out; But be that the elastic component of test loop with indicator work is meshed in the disclosed scheme of CN 1031737C, if when elastic component fault or manufacturing defect occurring, test loop and indicator will all can't be worked.
The present invention is designed to the test loop form of biswitch through special-shaped torsion spring; Well solved DP DE4.001; Situation about still connecting by the compression testing device test loop when the disclosed product of 680 A1 breaks off, and crucial part of the present invention also is test loop and indicator work are separated into the functional module of two mutually noninterferes, the reason of working and the course of work mutually not the cadre relate to; But the contact to the test loop is provided with the mistake proofing measure with disconnection; The path of indicator work is carried out spacing, the motion state of actuator is limited, confirm only to occur " 0 " perhaps relation of " 1 ".
Summary of the invention
Content of the present invention is that the test device system test device system of earth-fault current or residual current circuit breaker comprises a test circuit and a display device; Test circuit is used to check the action situation of isolating switch when earth-fault current or residual current occurring; Display device is used to indicate the state of the disconnection or the connection of isolating switch; The test circuit of isolating switch test device system and display device two functional modules are separate separately; Two functional modules do not produce inevitable association from part composition separately, moving fortune state, electric loop, in each functional module course of work, if wherein a module breaks down; Cisco unity malfunction, breaking down to influence the normal operation of other part.
Test circuit of the present invention contains one can be from the square testing button of homing position type; And testing button can be by just perpendicular to the motion that is directed downwards at isolating switch top; Start test device system work through pushing square testing button; When the acting force that acts on square button disappeared, square testing button can be got back to the reference position of pushing automatically.
Square testing button is through being fixed on supporting member in the mechanism and positioning and locator meams being through L shaped barb on the square button and the corresponding barb of supporting member correspondence position the fixing of direction that make progress; Square testing button has a square column type guidepost; Be used for the square shaped button in the guiding of the process of pushing to spacing; There is an inverted U-shaped groove on square testing button next door, has an end straight-arm of the special-shaped torsion spring torsion that makes progress to put on square testing button, so that square testing button just often upwards exposes the breaker upper cover end face; After pushing this button, resetting also is to lean on the torsion of torsion spring and realize.
The end straight-arm that the abnormity torsion spring positions torsion spring through the right cylinder on the supporting member places an inverted U-shaped groove on square button next door, and the other end is L-shaped, places between the slideway between supporting member location small column and rotating shaft.
Test device system of the present invention has a display device; The state that shows the isolating switch contact through the window of breaker upper cover; The principle of work design of display device is irrelevant with the motion and the stop position of circuit breaker handle; The test circuit work of the principle of work of display device and test device system is irrelevant; The work of display device is only corresponding with the location status of contact, and the location status of isolating switch contact only is connection or separates two kinds of situation, and the design of isolating switch has guaranteed that contact does not allow to occur the third situation except that connecting or separating.
Display device is that the indicator through a motion comes work, and the place, location of indicator is designed with the barb device of a cylindrical hollow, and the barb device is embedded in the convex closure circular hole of mechanism's side plate; So that indicator is carried out maintenance; There is a circular hole indicator lower end, and an end of an elastic component passes 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; Being designed with of the spacing place of side plate prevent that elastic component from jumping out in the groove maybe, the rotating shaft meeting is rotated with the change of contact state, the rotation of rotating shaft will be taken the elastic component motion to; Elastic component drives the indicator motion again, and the indicator different state just shows in the breaker upper cover window.
In order to make display device show that better the connecting point position state has the initial point and the terminal point anchor point of two place's indicator movement positions on mechanism's side plate; So that indicator only can stop ability anchor point place; Promptly when other part in the display device if break down or during defective; Can not influence the duty of display device, evade the risk that malfunction possibly appear in display device.
Description of drawings
Description figure is in order to the inventive concept of the test device system of statement 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 square testing button of Fig. 3 and positioning support spare
Fig. 4 abnormity torsion spring outside drawing
Square testing button of Fig. 5 and positioning support spare and special-shaped torsion spring interactively figure
The square testing button test mode of Fig. 6 figure
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
Spacing some graph of a relation of Figure 11 indicator
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 used to check the action situation of isolating switch when earth-fault current or residual current occurring; Display device is used to indicate the state of the disconnection or the connection of isolating switch, and the test circuit of isolating switch test device system and display device two functional modules are separate separately, two functional modules from part separately form, moving fortune state, electric loop do not produce inevitable association; In each functional module course of work; If wherein a module breaks down, cisco unity malfunction, breaking down to influence the normal operation of other part.
Of the present invention specifically execute mode be test circuit contain one can be from the square testing button of homing position type; And testing button can be by just perpendicular to the motion that is directed downwards at isolating switch top; Start test device system work through pushing square testing button; When the acting force that acts on square button disappeared, square testing button can be got back to the reference position of pushing automatically, and was as shown in Figure 1.
Square testing button positions through the supporting member that is fixed in the mechanism; And locator meams is through L shaped barb on the square button and the corresponding barb of supporting member correspondence position the fixing of direction that make progress; Square testing button has a square column type guidepost; Be used for the square shaped button in the guiding of the process of pushing to spacing, as shown in Figure 3.
There is an inverted U-shaped groove on square testing button next door; There is an end straight-arm of the special-shaped torsion spring torsion that makes progress to put on square testing button; So that square testing button just often upwards exposes the breaker upper cover end face; After pushing this button, resetting also is to lean on the torsion of torsion spring and realize, like Fig. 5 and shown in Figure 6.
The abnormity torsion spring has served as biswitch in whole test circuit effect promptly is when isolating switch is in off-state, and break and movable contact are separated; The L-shaped end of torsion spring places between the slideway between supporting member location small column and rotating shaft, is separated with the fastener of locating movable contact, does not promptly contact; When pushing square testing button at this moment; Even the Z-shaped end of special-shaped torsion spring contacts with fixation test resistance lead end, the test loop is not because the L shaped end of torsion spring contacts with the conduction fastener and not conducting of test loop, test macro can't be worked; When opening circuit when being in on-state, as shown in Figure 7.
Break contacts with movable contact, and the L-shaped end of torsion spring places between the slideway between supporting member location small column and rotating shaft, " kills " mutually with the protruding end of the fastener of locating movable contact; L shaped end contacts with buckle, and this design is reliable for guaranteeing contact, when pushing square testing button; The Z-shaped end of abnormity torsion spring contacts with fixation test resistance lead end; The test loop is connected, and test device system is started working, and is as shown in Figure 8.
The display device of test device system of the present invention; The state that shows the isolating switch contact through the window of breaker upper cover; The principle of work design of display device is irrelevant with the motion and the stop position of circuit breaker handle; The test circuit work of the principle of work of display device and test device system is irrelevant; The work of display device is only corresponding with the location status of contact, and the location status of isolating switch contact only is connection or separates two kinds of situation, and the design of isolating switch has guaranteed that contact does not allow to occur the third situation except that connecting or separating.Display device is that the indicator through a motion comes work, and the place, location of indicator is designed with the barb device of a cylindrical hollow, and the barb device is embedded in the convex closure circular hole of mechanism's side plate; So that indicator is carried out maintenance, there is a circular hole indicator lower end, and an end of an elastic component passes this circular hole; Power resources as the indicator motion; The other end of elastic component is embedded in the groove in rotating shaft centre position, being designed with of the spacing place of side plate prevent that elastic component from jumping out in the groove maybe, the rotating shaft meeting is rotated with the change of contact state; The rotation of rotating shaft will be taken the elastic component motion to; Elastic component drives the indicator motion again, and the indicator different state just shows in the breaker upper cover window, like Fig. 9 and shown in Figure 10.
In order to make display device better show the connecting point position state; The initial point and the terminal point anchor point that on mechanism's side plate, have two place's indicator movement positions; So that indicator only can stop can anchor point the place, promptly when other part in the display device as if breaking down or during defective, can not influencing the duty of display device; Evade display device and the risk of malfunction possibly occur, shown in figure 11.
Claims (8)
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 used to check the action situation of isolating switch when earth-fault current or residual current occurring; Display device is used to indicate the state of the disconnection or the connection of isolating switch, and the test circuit of isolating switch test device system and display device two functional modules are separate separately, two functional modules from part separately form, moving fortune state, electric loop do not produce inevitable association; In each functional module course of work; If wherein a module breaks down, cisco unity malfunction, breaking down to influence the normal operation of other part.
2. test device system according to claim 1; It is characterized in that test circuit contains one can be from the square testing button (1) of homing position type; And testing button (1) can be by just perpendicular to the motion that is directed downwards at isolating switch top; Start test device system work through pushing square testing button, when the acting force that acts on square button disappeared, square testing button can be got back to the reference position of pushing automatically.
3. test device system according to claim 1; Square testing button (1) positions through the supporting member (7) that is fixed in the mechanism; And locator meams is through L shaped barb on the square button (1) and the corresponding barb of supporting member (7) correspondence position the fixing of direction that make progress; Square testing button (1) has a square column type guidepost, be used for square shaped button (1) in the guiding of the process of pushing to spacing, there is an inverted U-shaped groove (1b) on square testing button (1) next door; The end straight-arm (9a) that one special-shaped torsion spring (9) arranged upwards torsion puts on square testing button (1); So that square testing button (1) just often upwards exposes the breaker upper cover end face, after pushing this button (1), resetting also is to lean on the torsion of torsion spring (9) and realize.
4. according to claim 1 or 3 described test device system; Abnormity torsion spring (9) positions through the right cylinder (7b) on the supporting member (7); One end straight-arm (9a) of torsion spring (9) places an inverted U-shaped groove (1b) on square button (1) next door; The other end L-shaped (9b) places between the slideway (8a) between supporting member (7) location small column (7c) and rotating shaft (8).
5. test device system according to claim 4, special-shaped torsion spring (9) has served as the effect of biswitch in whole test circuit, promptly be when isolating switch is in off-state; Break (3) is separated with movable contact (4), and the L-shaped end of torsion spring (9) (9b) places between the slideway (8a) between supporting member (7) location small column (7c) and rotating shaft (8), is separated with the fastener (5) of locating movable contact (4); Promptly do not contact, when pushing square testing button (1) at this moment, even the Z-shaped end (9a) of special-shaped torsion spring (9) contacts with fixation test resistance lead end (7a); The test loop makes not conducting of test loop because the L shaped end of torsion spring (9b) does not contact with conduction fastener (5); Test macro can't be worked, and when isolating switch was in on-state, break (3) contacted with movable contact (4); The L-shaped end of torsion spring (9) (9b) places between the slideway (8a) between supporting member (7) location small column (7c) and rotating shaft (8); " kill " mutually with the protruding end (5a) of the fastener (5) of locating movable contact (4), L shaped end (9b) contacts with fastener (5), and this design is reliable for guaranteeing contact; When pushing square testing button (1); The Z-shaped end (9b) of abnormity torsion spring (9) contacts with fixation test resistance lead end (7a), and the test loop is connected, and test device system is started working.
6. test device system according to claim 1; Test device system has a display device; The state that shows the isolating switch contact through the window (2) of breaker upper cover; The principle of work design of display device is irrelevant with the motion and the stop position of circuit breaker handle (12), and the test circuit work of the principle of work of display device and test device system is irrelevant, and the work of display device is only corresponding with the location status of contact; And the location status of isolating switch contact only is connection or separates two kinds of situation, and the design of isolating switch has guaranteed that contact does not allow to occur the third situation except that connecting or separating.
7. according to claim 1 or 7 described test device system; Display device is to come work through the indicator of a motion (6), and the place, location of indicator is designed with the barb device (6a) of a cylindrical hollow, and barb device (6a) is embedded in the convex closure circular hole of mechanism's side plate (10); So that indicator (6) is carried out maintenance; There is a circular hole indicator (6) lower end, and an end (11a) of an elastic component (11) passes this circular hole, as the power resources of indicator (6) motion; The other end (11b) of elastic component (11) is embedded in the groove (8b) in rotating shaft (8) centre position; Being designed with of the spacing place of side plate (10) prevent that elastic component (11) from jumping out in the groove (8b) maybe, rotating shaft (8) can be rotated with the change of contact state, the rotation of rotating shaft (8) will be taken elastic component (11) motion to; Elastic component (11) drives indicator (6) motion again, and indicator (6) different state just shows in breaker upper cover window (2).
8. test device system according to claim 7; In order to make display device better show the connecting point position state; The initial point (10a) and terminal point (10b) anchor point that on mechanism's side plate (10), have two place's indicator (6) movement positions so that indicator (6) only can stop can anchor point the place, promptly when other part in the display device as if breaking down or during defective; Can not influence the duty of display device, evade the risk that malfunction possibly 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 |
Applications Claiming Priority (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 |
Publications (2)
| Publication Number | Publication Date |
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| CN102818988A true CN102818988A (en) | 2012-12-12 |
| CN102818988B CN102818988B (en) | 2016-01-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210028858.XA Active 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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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409292A (en) * | 2014-12-05 | 2015-03-11 | 温州力能电器科技有限公司 | Residual current circuit breaker |
| CN105510818A (en) * | 2015-12-30 | 2016-04-20 | 三信国际电器上海有限公司 | Breaker and testing device and method thereof |
Citations (6)
| 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 |
| JPH08138520A (en) * | 1994-11-15 | 1996-05-31 | Matsushita Electric Works Ltd | Earth-leakage circuit breaker |
| 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 |
| US20100149772A1 (en) * | 2008-12-16 | 2010-06-17 | Square D Company | Residential Circuit Breaker With Flexible Printed Circuit Boards |
-
2012
- 2012-01-21 CN CN201210028858.XA patent/CN102818988B/en active Active
Patent Citations (6)
| 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 |
| JPH08138520A (en) * | 1994-11-15 | 1996-05-31 | Matsushita Electric Works Ltd | Earth-leakage circuit breaker |
| CN2517104Y (en) * | 2000-12-06 | 2002-10-16 | Lg产电株式会社 | Earth leakage circuit breaker |
| US20100149772A1 (en) * | 2008-12-16 | 2010-06-17 | Square D Company | Residential Circuit Breaker With Flexible Printed Circuit Boards |
| 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 |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104409292A (en) * | 2014-12-05 | 2015-03-11 | 温州力能电器科技有限公司 | Residual current circuit breaker |
| CN105510818A (en) * | 2015-12-30 | 2016-04-20 | 三信国际电器上海有限公司 | Breaker and testing device and method thereof |
| 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 |
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| Publication number | Publication date |
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| CN102818988B (en) | 2016-01-20 |
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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 |