CN108987200B - A closing ready signal device for a circuit breaker operating mechanism - Google Patents
A closing ready signal device for a circuit breaker operating mechanism Download PDFInfo
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- CN108987200B CN108987200B CN201810861637.8A CN201810861637A CN108987200B CN 108987200 B CN108987200 B CN 108987200B CN 201810861637 A CN201810861637 A CN 201810861637A CN 108987200 B CN108987200 B CN 108987200B
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- switching
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- 230000007246 mechanism Effects 0.000 title claims abstract description 102
- 230000001960 triggered effect Effects 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 18
- 230000008569 process Effects 0.000 abstract description 18
- 238000004146 energy storage Methods 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000003313 weakening effect Effects 0.000 description 2
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
Classifications
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- 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
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- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The switching-on readiness signal device of the breaker operating mechanism comprises a pair of mechanism side plates (1) which are arranged face to face, a switching-off half shaft (2) is arranged on the pair of mechanism side plates (1) through a first pivot shaft (3) and can rotate around the first pivot shaft (3), a switching-on and switching-off indicating piece (4) is arranged on the pair of mechanism side plates (1) through a first shaft (5) and can rotate around the first shaft (5), and the switching-on and switching-off signal device is characterized in that the switching-off half shaft (2) can be linked with a first micro switch (6) to realize switching-on or switching-off of the first micro switch (6), and the switching-on and switching-off indicating piece (4) can be linked with a second micro switch (7) to realize switching-on or switching-off of the second micro switch (7) in the rotating process, and the first micro switch (6) and the second micro switch (7) are connected in series through a lead (L). The whole device has simple structure and reliable use, does not occupy the user end resources and can achieve the purpose of signal output without damaging the strength of the side plate of the mechanism.
Description
Technical Field
The invention belongs to the technical field of circuit breakers, and particularly relates to a ready-to-close signal device of a circuit breaker operating mechanism.
Background
In the field of low-voltage appliances, a closing ready signal of a universal circuit breaker is becoming more and more common, and a user can remotely judge whether an operating mechanism of the circuit breaker can be closed through the closing ready signal. The breaker operating mechanism can be switched on and must meet three conditions simultaneously, namely an energy storage state, a switching-off state and a switching-off half-shaft reset state (under-voltage power-on and controller executing mechanism reset). The breaker operating mechanism is in actual operation in five states, namely, an energy storage state, a brake separating state and a brake separating half shaft resetting state, wherein the energy storage state, the brake separating half shaft non-resetting (under-voltage power-off or the controller executing mechanism is not reset), the energy storage state, the brake closing state, the brake separating half shaft resetting state, the energy releasing state, the brake closing state, the brake separating half shaft resetting state and the energy releasing state, and the brake separating half shaft non-resetting state.
The ready signal device for switching on in the prior art is generally achieved by 1, utilizing a balance arm of a flywheel frame of a traditional operating mechanism structure to toggle a micro switch to achieve signal output, and 2, utilizing a switching-off half shaft of the operating mechanism to toggle the signal output by the micro switch to be simultaneously connected with a group of auxiliary contacts in series for switching.
However, the above-mentioned existing ready signal device for closing a switch has technical drawbacks, and the 1 st mode has drawbacks due to the structure of the aircraft frame, in which a balance arm needs to extend out from a slot hole of the right side plate of the mechanism, so as to control the balance effect in the moving process of the aircraft frame, and meanwhile, the balance arm of the aircraft frame is used to toggle the micro switch to realize signal output. Along with the improvement of various breaking short tolerance indexes of the circuit breaker, the diameter of a rotating shaft becomes thicker and thicker, the thicknesses of a rotating shaft slotted hole on a mechanism side plate and a slotted hole of a plane frame balance arm become smaller, the strength of the mechanism side plate becomes weak, and the mechanism side plate becomes unreliable due to the weakening of the strength of the mechanism side plate during use; the disadvantage of mode 2 is that a set of auxiliary signals at the user end is required to be occupied more, the user's selection of use is reduced, and the user satisfaction is reduced.
Disclosure of Invention
The invention aims to overcome the technical defect that the existing switching-on ready signal device is unreliable or needs to occupy a group of auxiliary signals at the user end due to weakening of the strength of a side plate of a mechanism, and provides the switching-on ready signal device of a circuit breaker operating mechanism. The whole device has simple structure and reliable use, does not occupy the user end resources and can achieve the purpose of signal output without damaging the strength of the side plate of the mechanism.
Technical proposal
In order to achieve the technical purpose, the switch-on ready signal device of the breaker operating mechanism comprises a pair of mechanism side plates which are arranged face to face, a switch-off half shaft is arranged on the pair of mechanism side plates through a first pivot shaft and can rotate around the pivot shaft, and a switch-on and switch-off indicator is arranged on the pair of mechanism side plates through a first shaft and can rotate around the first shaft.
Further, the brake-separating half shaft is connected with a torsion spring, the torsion spring has a trend of enabling the brake-separating half shaft to rotate anticlockwise, the switch-on of the micro switch can be triggered in the anticlockwise rotation process of the brake-separating half shaft, and the travel of the brake-separating half shaft can be limited by a limiting part on a side plate of the mechanism in the anticlockwise rotation process of the brake-separating half shaft;
the double-blade lever is arranged between the pair of mechanism side plates through a second fulcrum shaft and can rotate around the second fulcrum shaft, and the double-blade lever can prevent the brake-separating half shaft from rotating to trigger the first microswitch in the rotating process;
The switching-on and switching-off indicating piece is connected with a tension spring, the tension spring has a trend of enabling the switching-on and switching-off indicating piece to rotate clockwise, the switching-on and switching-off indicating piece can trigger the second microswitch 7 to be switched on in the clockwise rotating process, and the switching-on and switching-off indicating piece can be limited in stroke by the second limiting part on the side plate of the mechanism in the clockwise rotating process;
The cantilever is arranged on the mechanism rotating shaft and can rotate together with the mechanism rotating shaft, and the clockwise rotation of the cantilever can drive the switching-on and switching-off indicating piece to rotate anticlockwise and separate from the second microswitch.
Further, the torsion spring takes the second shaft as a fulcrum, one end of the torsion spring abuts against the third shaft on the side plate of the mechanism, and the other end of the torsion spring abuts against the brake separating half shaft.
Preferably, the first limiting part is a hole wall of a first limiting hole positioned on the side plate of the mechanism, a deflector rod arranged on the brake-separating half shaft stretches into the first limiting hole, and the deflector rod corresponds to a first touch arm of the first micro switch.
Further, a limit groove is formed in the brake separating half shaft, a tangential surface corresponding to the limit groove is formed in the double-blade lever, and the tangential surface can prop against the limit groove in the rotation process of the double-blade lever, so that the brake separating half shaft cannot trigger the first micro switch.
Preferably, one end of the tension spring is arranged on a shaft IV on the side plate of the mechanism, and the other end of the tension spring is arranged on the opening and closing indication piece.
Preferably, the second limiting part is a fifth shaft arranged on the side plate of the mechanism, the fifth shaft extends into a second limiting hole corresponding to the on-off indication piece, and a second touch arm of the micro switch corresponds to a second touch shaft on the on-off indication piece.
Further, the cantilever can be limited in stroke by a limiting shaft on a side plate of the mechanism in the rotation process.
Further, the pair of mechanism side plates are connected with the connecting shaft by a limiting shaft.
Preferably, the first and/or second micro switch is/are mounted on the left or right side of the pair of mechanism side plates 1.
Advantageous effects
According to the ready-to-close signal device of the breaker operating mechanism, the strength of the side plate of the mechanism is not reduced, the auxiliary signal of the user end is not occupied, two micro switches are arranged on the side plate of the mechanism, the opening half shaft toggles one micro switch, the opening and closing indicating piece toggles one micro switch, and the ready-to-close signal is output in a mode that the two micro switches are connected in series. The whole device has simple structure and reliable use, does not occupy the user end resources and can achieve the purpose of signal output without damaging the strength of the side plate of the mechanism.
Drawings
FIG. 1 is a schematic diagram of a first microswitch and a second microswitch mounted on a side plate of a mechanism in embodiment 1 of the present invention;
FIG. 2 is a schematic diagram of the structure of the brake-separating energy storage and brake-separating half shaft reset of the operating mechanism in the embodiment 1 of the invention;
FIG. 3 is a schematic diagram of the structure of the switching-on (energy storage or release) and switching-off half shaft reset of the operating mechanism in embodiment 1 of the present invention;
FIG. 4 is a schematic diagram of the structure of the embodiment 1 of the invention in which the opening energy release and the opening half shaft of the operating mechanism are not reset;
FIG. 5 is a schematic diagram of the structure of the operating mechanism of embodiment 1 with the brake-off energy storage and brake-off half shaft not reset;
FIG. 6 is a schematic diagram of the structure of the brake-separating half shaft in embodiment 1 of the present invention;
fig. 7 is a schematic structural diagram of an on/off indicator in embodiment 1 of the present invention.
Detailed Description
The invention will now be described in further detail with reference to the drawings and examples.
Example 1
As shown in fig. 1 and 2, a readiness-to-close signal device for a circuit breaker operating mechanism includes a pair of mechanism side plates 1 disposed face to face, the pair of mechanism side plates 1 being connected by a limiting shaft 17 and a connecting shaft 18. The brake-separating half shaft 2 is arranged on the pair of mechanism side plates 1 through a first pivot shaft 3 and can rotate around the first pivot shaft 3, the brake-separating indicator 4 is arranged on the pair of mechanism side plates 1 through a first shaft 5 and can rotate around the first shaft 5, the brake-separating half shaft 2 can be linked with the first microswitch 6 to realize the connection or disconnection of the first microswitch 6 in the rotating process, the brake-separating indicator 4 can be linked with the second microswitch 7 to realize the connection or disconnection of the second microswitch 7 in the rotating process, and the first microswitch 6 and the second microswitch 7 are connected in series through wires. In this embodiment, the first microswitch 6 and the second microswitch 7 are mounted on the left side of the pair of mechanism side plates 1.
The brake-separating half shaft 2 is connected with a torsion spring 8, in this embodiment, the torsion spring 8 uses the second shaft 14 as a fulcrum, one end of the torsion spring 8 abuts against the third shaft 15 on the mechanism side plate 1, and the other end abuts against the brake-separating half shaft 2.
The torsion spring 8 has a tendency to rotate the brake-separating half shaft 2 anticlockwise, the brake-separating half shaft 2 can trigger the first micro switch 6 to be turned on in the anticlockwise rotation process, and the travel of the brake-separating half shaft 2 can be limited by the first limiting part 101 on the side plate 1 of the mechanism in the anticlockwise rotation process, specifically, in this embodiment, the first limiting part 101 is a hole wall of the first limiting hole 101a on the side plate 1 of the mechanism, the deflector 201 arranged on the brake-separating half shaft 2 extends into the first limiting hole 101a, and the deflector 201 corresponds to the first touch arm 601 of the first micro switch 6.
The double-blade lever 9 is arranged between the pair of mechanism side plates 1 through a second pivot shaft 10 and can rotate around the second pivot shaft 10, and in the rotating process of the double-blade lever 9, the opening half shaft 2 can be prevented from rotating to trigger the first micro switch 6, specifically, as shown in fig. 6, a limit groove 202 is formed in the opening half shaft 2, a tangential surface 901 corresponding to the limit groove 202 is formed in the double-blade lever 9, and in the rotating process of the double-blade lever 9, the tangential surface 901 can prop against the limit groove 202 to enable the opening half shaft to be incapable of triggering the first micro switch 6.
The on-off brake indicator 4 is connected with a tension spring 11, one end of the tension spring 11 is arranged on a shaft IV 16 on the mechanism side plate 1, and the other end of the tension spring is arranged on the on-off brake indicator 4. The tension spring 11 has a tendency to rotate the on-off indicator 4 clockwise, the on-off indicator 4 can trigger the second micro switch 7 to be turned on in the clockwise rotation process, and the on-off indicator 4 can be limited in travel by the second limiting part 102 on the mechanism side plate 1 in the clockwise rotation process, specifically, the second limiting part 102 is a fifth shaft 102a installed on the mechanism side plate 1, the fifth shaft 102a extends into a second limiting hole 401 corresponding to the on-off indicator 4, as shown in fig. 7, a touch shaft 402 on the on-off indicator 4 corresponds to a second touch arm 701 of the second micro switch 7.
The cantilever 12 is arranged on the mechanism rotating shaft 13 and can rotate together with the mechanism rotating shaft 13, and the stroke of the cantilever 12 can be limited by a limiting shaft 17 on the mechanism side plate 1 in the rotating process. The cantilever 12 can drive the on-off indicator 4 to rotate anticlockwise to be separated from the second micro switch 7.
The working principle of the embodiment is that as shown in figure 2, when the operating mechanism is used for separating brake, storing energy and resetting the separating brake half shaft, the section 901 of the double-knife lever 9 is arranged below the separating brake half shaft 2, the separating brake half shaft 2 rotates anticlockwise under the action of the torsion spring 8, the deflector 201 contacts with the side plate 1 of the mechanism, the separating brake half shaft 2 reaches a resetting state, and the deflector 201 of the separating brake half shaft 2 drives the touch arm one 601 of the micro switch one 6 to enable the micro switch one 6 to be switched. The on-off indicator 4 rotates clockwise under the action of the tension spring 11, the on-off indicator 4 stops rotating after contacting with the shaft five 102a, and the touch shaft 402 of the on-off indicator 4 toggles the touch arm two 701 of the micro switch two 7 to enable the micro switch two 7 to switch. The first microswitch 6 and the second microswitch 7 are switched simultaneously, and after being connected in series through a lead L, a switching signal is output, and the switching signal output by the mechanism in the state is a required switch-on ready signal.
As shown in figure 3, when the operating mechanism is switched on, stores or releases energy and the brake release half shaft 2 is reset, the tangent plane 901 of the double-knife lever 9 is arranged below the brake release half shaft 2, the brake release half shaft 2 rotates anticlockwise under the action of the torsion spring 8, the deflector 201 contacts the brake release half shaft 2 with the side plate 1 of the mechanism to reach a reset state, and the deflector 201 of the brake release half shaft 2 drives the touch arm one 601 of the micro switch one 6 to enable the micro switch one 6 to be switched. The mechanism rotating shaft 13 rotates clockwise, the cantilever 12 contacts with the on-off brake indicator 4, so that the on-off brake indicator 4 rotates anticlockwise against the counter force of the tension spring 11, the touch shaft 402 of the on-off brake indicator 4 does not contact with the touch arm 701 of the second microswitch 7, and the second microswitch 7 does not switch. The micro switch I6 is switched, the movable switch II 7 is not switched, and a switching signal is not output after the micro switch I and the movable switch II are connected in series through a lead L.
As shown in fig. 4, when the operating mechanism is opened, released and the opening half shaft 2 is not reset, the tangent plane 901 of the double-blade lever 9 is arranged between the limit grooves 202 of the opening half shaft 2, the limit grooves 202 of the opening half shaft 2 are contacted with the tangent plane 901 of the double-blade lever 9, and cannot be reset, the deflector rod 201 of the opening half shaft 2 is not contacted with the touch arm 601 of the micro switch I6, and the micro switch I6 is not converted. The on-off indicator 4 rotates clockwise under the action of the tension spring 11, the on-off indicator 4 stops rotating after contacting with the shaft five 102a, and the touch shaft 402 of the on-off indicator 4 toggles the touch arm two 701 of the micro switch two 7 to enable the micro switch two 7 to switch. The first microswitch 6 is not switched, the second microswitch 7 is switched, and no switching signal is output after the first microswitch is connected in series through the lead L.
As shown in figure 5, when the operating mechanism is not reset on the brake-separating, energy-storing and brake-separating half shaft 2, the tangent plane 901 of the double-knife lever 9 is below the brake-separating half shaft 2, the brake-separating half shaft 2 rotates anticlockwise under the action of the torsion spring 8, but the brake-separating half shaft 2 is blocked to be not reset because the controller executing mechanism is not reset or the under-voltage release is not electrified, the deflector 201 of the brake-separating half shaft 2 is not contacted with the touch arm 601 of the first micro switch 6, and the first micro switch 6 is not switched. The on-off indicator 4 rotates clockwise under the action of the tension spring 11, the on-off indicator 4 stops rotating after contacting with the shaft five 102a, and the touch shaft 402 of the on-off indicator 4 toggles the touch arm two 701 of the micro switch two 7 to enable the micro switch two 7 to switch. The first microswitch 6 is not switched, the second microswitch 7 is switched, and no switching signal is output after the first microswitch is connected in series through the lead L.
Therefore, the structure enables the operating mechanism to output the conversion signal only when the opening, energy storage and opening half shaft are reset, meets the requirement that the operating mechanism can close, has a simple structure, is reliable to use, does not occupy the user end resources and can achieve the purpose of signal output without damaging the strength of the side plate of the mechanism.
Example 2
The invention also provides an embodiment that the first microswitch 6 and the second microswitch 7 are arranged on the right side of the pair of mechanism side plates 1. The working principle is the same as in the first embodiment and will not be further described here.
Example 3
An embodiment of the present invention is that the first microswitch 6 or the second microswitch 7 is installed at the left side or the right side of the corresponding pair of mechanism side plates 1. The working principle is the same as in the first embodiment and will not be further described here.
The structures, proportions, sizes, amounts, etc. shown in the drawings of the embodiments of the present invention are for illustration and description only, and should not be construed as limiting the invention, so that any structural modifications, proportional changes, or adjustments of size may fall within the scope of the invention without affecting the efficacy and achievement of the invention. Meanwhile, the terms such as "upper", "lower", "left", "right", "middle", "clockwise", "anticlockwise" and the like are used in the present specification for convenience of description, and are not intended to limit the scope of the present invention, and the relative relation changes or modifications thereof are considered to be within the scope of the present invention without substantial modification of the technical content.
Claims (9)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861637.8A CN108987200B (en) | 2018-08-01 | 2018-08-01 | A closing ready signal device for a circuit breaker operating mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810861637.8A CN108987200B (en) | 2018-08-01 | 2018-08-01 | A closing ready signal device for a circuit breaker operating mechanism |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108987200A CN108987200A (en) | 2018-12-11 |
| CN108987200B true CN108987200B (en) | 2024-12-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810861637.8A Active CN108987200B (en) | 2018-08-01 | 2018-08-01 | A closing ready signal device for a circuit breaker operating mechanism |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203733727U (en) * | 2013-12-29 | 2014-07-23 | 上海良信电器股份有限公司 | Switchable state indicating device of circuit breaker |
| CN205194632U (en) * | 2015-12-17 | 2016-04-27 | 江苏洛凯机电股份有限公司 | A ready signal device that closes a floodgate for conventional circuit -breaker operating device |
| CN205789785U (en) * | 2016-06-19 | 2016-12-07 | 浙江德菱科技股份有限公司 | The divide-shut brake instruction device of reclosing breaker |
| CN208655537U (en) * | 2018-08-01 | 2019-03-26 | 上海良信电器股份有限公司 | A closing ready signal device of a circuit breaker operating mechanism |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE4333828C1 (en) * | 1993-09-30 | 1995-03-09 | Siemens Ag | Device for controlling the opening of a circuit breaker |
| DE10013105C2 (en) * | 2000-03-17 | 2002-04-25 | Aeg Niederspannungstech Gmbh | Microswitch control of a remote operator for electrical switching devices |
| CN205140859U (en) * | 2015-11-13 | 2016-04-06 | 常熟开关制造有限公司(原常熟开关厂） | Breaker |
| CN206293390U (en) * | 2016-12-30 | 2017-06-30 | 浙江天正电气股份有限公司 | A kind of transmission mechanism of reclosing device |
| CN206921705U (en) * | 2017-07-12 | 2018-01-23 | 上海良信电器股份有限公司 | The secondary detent mechanism of energy-storing electrically operated mechanism |
-
2018
- 2018-08-01 CN CN201810861637.8A patent/CN108987200B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203733727U (en) * | 2013-12-29 | 2014-07-23 | 上海良信电器股份有限公司 | Switchable state indicating device of circuit breaker |
| CN205194632U (en) * | 2015-12-17 | 2016-04-27 | 江苏洛凯机电股份有限公司 | A ready signal device that closes a floodgate for conventional circuit -breaker operating device |
| CN205789785U (en) * | 2016-06-19 | 2016-12-07 | 浙江德菱科技股份有限公司 | The divide-shut brake instruction device of reclosing breaker |
| CN208655537U (en) * | 2018-08-01 | 2019-03-26 | 上海良信电器股份有限公司 | A closing ready signal device of a circuit breaker operating mechanism |
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| CN108987200A (en) | 2018-12-11 |
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