CN108831809B - Arrearage quick-release mechanism for circuit breaker and control method thereof - Google Patents
Arrearage quick-release mechanism for circuit breaker and control method thereof Download PDFInfo
- Publication number
- CN108831809B CN108831809B CN201810645468.4A CN201810645468A CN108831809B CN 108831809 B CN108831809 B CN 108831809B CN 201810645468 A CN201810645468 A CN 201810645468A CN 108831809 B CN108831809 B CN 108831809B
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- quick
- gear set
- circuit breaker
- arrearage
- release mechanism
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- 230000007246 mechanism Effects 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 13
- 230000009467 reduction Effects 0.000 claims abstract description 20
- 238000003756 stirring Methods 0.000 claims abstract description 15
- 238000000926 separation method Methods 0.000 abstract description 2
- 230000005611 electricity Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 240000007643 Phytolacca americana Species 0.000 description 1
- 235000009074 Phytolacca americana Nutrition 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000012790 confirmation Methods 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/10—Operating or release mechanisms
- H01H71/12—Automatic release mechanisms with or without manual release
- H01H71/42—Induction-motor, induced-current, or electrodynamic release mechanisms
- H01H71/43—Electrodynamic release mechanisms
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/10—Structural association with clutches, brakes, gears, pulleys or mechanical starters
- H02K7/116—Structural association with clutches, brakes, gears, pulleys or mechanical starters with gears
Abstract
The invention relates to a quick-release mechanism for arrearages for circuit breakers and a control method thereof, which are arranged on an electric operating mechanism and comprise a motor and a reduction gear module driven by the motor, wherein the output end of the reduction gear module is provided with a quick-release module for stirring a switch handle of the circuit breaker, and the quick-release module comprises a rotating member for stirring the switch handle of the circuit breaker and a stirring block for driving the rotating member to rotate. The quick-release module is added on the electric operating mechanism, so that the breaker can be quickly and accurately opened; when the motor rotates positively, the quick-release module does not act, and when the motor rotates reversely, a rotating member in the quick-release module drives a breaker switch handle to perform switching-off operation; the whole structure is simpler, and can realize quick and accurate brake separation, reduce the cost of labor, improve operating efficiency.
Description
Technical Field
The invention relates to the technical industry of circuit breaker application, in particular to an arrearage quick-release mechanism for a circuit breaker and a control method thereof.
Background
The electric power is widely used in daily life, each household is connected with a power grid at present, electricity is paid, and a breaker is required to be installed to provide safety when the electricity is used for the household, so that danger caused by overlarge electricity is prevented; the power grid manager needs to install an electric control mechanism on the circuit breaker for automatic or remote control at the same time so as to reduce labor cost. In daily life, often can appear that the user does not pay the charges of electricity, and the electric wire netting manager just needs to carry out the outage operation this moment, and the outage operation is at present through electric operating mechanism automatic or manual control, and automatic control is because the combined floodgate adopts same set of mechanism to take place the maloperation easily with the separating brake, inconvenient judgement circuit breaker's state of going on, sometimes needs through manual confirmation, the operation is inconvenient and increase cost.
Disclosure of Invention
The invention aims to solve the technical problem of providing a quick arrearage releasing mechanism for a circuit breaker and a control method thereof, wherein the quick arrearage releasing mechanism can realize quick power-off and accurate control.
The technical scheme adopted for solving the technical problems is as follows: the quick-release mechanism for the arrears of the circuit breakers is arranged on an electric operating mechanism and comprises a motor and a reduction gear module driven by the motor, wherein the output end of the reduction gear module is provided with a quick-release module for poking a switch handle of the circuit breakers, and the quick-release module comprises a rotating member for poking the switch handle of the circuit breakers and a poking block for driving the rotating member to rotate.
More specifically, an elastic body for restoring the rotary member to the initial position is provided on the rotary member.
Further specifically, the reduction gear module comprises a support, a pressing plate, a first gear set, a second gear set, a third gear set and a main gear set, wherein the first gear set, the second gear set, the third gear set and the main gear set are positioned between the support and the pressing plate, the first gear set receives power output by a motor and transmits the power to the second gear set, the second gear set transmits the power to the third gear set, the third gear set transmits the power to the main gear set, and the main gear set outputs the power through a stirring block.
Further specifically, the rotating member comprises a rotating shaft arranged on the support and a rotating rod rotating around the rotating shaft, one end of the rotating rod is abutted against the poking block, and the other end of the rotating rod is abutted against the switch handle of the circuit breaker.
Further specifically, the rotary rod is L-shaped.
Further specifically, the main gear group comprises a main rotating shaft arranged between the bracket and the pressing plate and a main gear arranged on the main rotating shaft, and the stirring block is arranged on the main gear.
Further specifically, the contact parts of the two end parts of the poking block and the rotating rod are inclined planes or curved surfaces, and the contact parts of the rotating rod and the poking block are rounded.
Further specifically, at least one stirring block is distributed on the end face of the main gear.
The control method of the arrearage quick release mechanism comprises the following steps:
s1, judging whether the user is an arrearage user according to the payment condition of the user;
s2, when the arrearage user is judged, a quick release signal is sent to an arrearage quick release mechanism; when judging that the user is not arrearage, the method does not act;
s3, the arrearage quick-release mechanism receives the signal to reverse the motor to execute the power-off task.
Further specifically, in the step S3, the way of executing the arrearage fast-release task is that the driving motor is reversed, so that the power direction output by the reduction gear module is opposite, the poking block is reversely rotated, so that the rotating member reversely rotates, and at the moment, the rotating member pushes the breaker switch handle to move towards the opening direction.
The beneficial effects of the invention are as follows: the quick-release module is added on the electric operating mechanism, so that the breaker can be quickly and accurately opened; when the motor rotates positively, the quick-release module does not act, and when the motor rotates reversely, a rotating member in the quick-release module drives a breaker switch handle to perform switching-off operation; the whole structure is simpler, and can realize quick and accurate brake separation, reduce the cost of labor, improve operating efficiency.
Drawings
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic diagram of the internal structure of the present invention;
FIG. 3 is a second schematic diagram of the internal structure of the present invention;
FIG. 4 is a schematic representation of the construction of a main gear set of the present invention;
fig. 5 is a schematic view of the structure of the rotating member of the present invention.
In the figure: 1. a motor; 2. A reduction gear module; 3. A quick release module; 21. A bracket; 22. A pressing plate; 23. A first gear set; 24. A second gear set; 25. A third gear set; 26. A main gear set; 31. A poking block; 32. A rotary rod; 33. A rotating shaft; 261. A main rotating shaft; 262. A main gear; 321. A first end; 322. A second end.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
The quick arrearage releasing mechanism for the circuit breaker is shown in fig. 1, is arranged on an electric operating mechanism and comprises a motor 1 and a reduction gear module 2 driven by the motor 1, wherein a quick releasing block 3 for stirring a switch handle of the circuit breaker is arranged at the output end of the reduction gear module 2, and the quick releasing block 3 comprises a rotating member for stirring the switch handle of the circuit breaker and a stirring block 31 for driving the rotating member to rotate. The reduction gear module 2 is used for carrying out reduction on the received rotation signal of the motor 1 and transmitting the reduction signal to the stirring block 31 arranged at the output end of the reduction gear module 2, the stirring block 31 is used for stirring the rotary member to rotate, and the rotary member is used for driving the breaker switch handle to move.
The above-mentioned reduction gear module 2 as shown in fig. 2 and 3 comprises a bracket 21, a pressing plate 22, a first gear set 23, a second gear set 24, a third gear set 25 and a main gear set 26, wherein the first gear set 23 is positioned between the bracket 21 and the pressing plate 22, the first gear set 23 receives the power output by the motor 1 and transmits the power to the second gear set 24, the second gear set 24 transmits the power to the third gear set 25, the third gear set 25 transmits the power to the main gear set 26, and the main gear set 26 outputs the power through a toggle block 31. The first gear set 23, the second gear set 24 and the third gear set 25 are each composed of a rotation shaft arranged between the bracket 21 and the pressing plate 22, and an input gear and an output gear arranged on the rotation shaft; the main gear set 26 is composed of a main rotating shaft 261 arranged between the bracket 21 and the pressing plate 22 and a main gear 262 positioned on the main rotating shaft 261; the output gear of the first gear set 23 is meshed with the input gear of the second gear set 24, the output gear of the second gear set 24 is meshed with the input gear of the third gear set 25, the output gear of the third gear set 25 is meshed with the main gear 262 of the main gear set 26, the poking block 31 is arranged on the end face of the main gear 262, meanwhile, the input gear of the first gear set 23 is meshed with the output gear arranged on the shaft of the motor 1, the output power of the motor 1 is transmitted through the gears, and finally, the output power is output through the rotation of the poking block 31 around the main rotating shaft 261.
As shown in fig. 5, the rotary member is composed of a rotary shaft 33 disposed on the bracket 21 and a rotary rod 32 mounted on the rotary shaft 33, the rotary rod 32 can rotate around the rotary shaft 33, the rotary shaft 33 divides the rotary rod 32 into two ends, namely a first end 321 and a second end 322, the first end 321 of the rotary rod 32 abuts against a poking block 31, and the poking block 31 rotates around the rotary shaft 33 along with the rotation of the main gear 262; the second end 322 of the rotary rod 32 is in abutting linkage with the breaker switch handle, the second end 322 of the rotary rod 32 can swing towards two directions, one direction can push the breaker switch handle to perform opening operation, and when the rotary rod swings towards the other direction, the second end of the rotary rod 32 is separated from the breaker switch handle; the rotary rod 32 is designed as an L-shaped structure and comprises a long vertical rod and a short horizontal rod, the rotary shaft 32 is arranged in the middle of the long rod, and the short rod is a first end 321 of the rotary rod 32. An elastic body for enabling the rotary rod 32 to restore to the initial position is arranged on the rotary rod 32, and the elastic body uses a torsion spring or a tension spring; the scheme adopts a tension spring, one end of which is fixed on the rotary rod 32, and the other end is fixed on the bracket 21.
The number of the toggle blocks 31 can be one or more, and when the number of the toggle blocks is a plurality, the toggle blocks can be uniformly distributed on the end face of the main gear 262; the scheme adopts one (as shown in fig. 4), the structure is that the end face of the main gear 262 is outwards protruded, the contact part of the two ends of the protrusion and the rotary rod 32 is set to be an inclined plane or a curved surface, and the contact part (namely a short rod part) of the corresponding rotary rod 32 and the protrusion is chamfered (rounded or inclined plane); the shape of the protrusions can be square, round and other special-shaped structures; the protrusions are disposed around the main rotation shaft 262 and ensure that an angle formed between both end portions of the protrusions is less than 360 °, and both end portions of the protrusions are inclined or curved so that the rotating rod 32 can smoothly transition when contacting the protrusions.
According to the structure, the corresponding control method is needed to realize the function of arrearage quick power-off, and the method comprises the following steps:
s1, judging whether the user is an arrearage user or not according to the payment condition of the user, and judging through setting a threshold value by a system;
s2, when the arrearage user is judged, the system sends a quick release signal to the arrearage quick release mechanism; when the user is judged to be not owed with fees, the system does not act;
s3, the arrearage quick-release mechanism receives the signal to execute the power-off task.
In step S3, the arrearage quick release mechanism performs a power-off task, the motor 1 is reversed, the power output by the motor 1 is reversed, so that each gear in the reduction gear module 2 rotates reversely, the output power is reversed, the poking block 31 positioned on the main gear 262 rotates reversely, the poking block 31 pokes the first end 321 of the revolving rod 32 to swing in one side direction, the revolving rod 32 rotates around the revolving shaft 33 to swing the second end 322 in the other side direction, and the second end 322 of the revolving rod 32 pushes the switch handle of the circuit breaker to move in the opening direction, so that the power-off operation is completed; when the first end 321 of the rotary rod 32 is separated from the toggle block, the rotary rod 32 returns to the initial position due to the action of the tension spring, and at this time, the second end 322 of the rotary rod 32 is separated from the breaker switch handle, so as to prepare for the next power failure
The quick arrearage is realized when the motor 1 rotates reversely, and the electric operating mechanism realizes the closing operation when the motor 1 rotates positively, at this time, the output power of the motor 1 is positive, the power received and output by the reduction gear module 2 is also positive, the poking block 31 swings in the opposite direction at the first end 321 of the poking rotary rod 32, so that the second end 322 of the rotary rod 32 swings in the opposite direction, the second end 322 of the rotary rod 32 is separated from the breaker switch handle and does not act on the breaker switch handle, and the quick arrearage mechanism is ensured not to work in the forward rotation process of the motor 1.
In sum, the motor 1 positively rotates the electric operating mechanism to work to realize the switching-on operation of the circuit breaker, the motor 1 reversely drives the arrears to rapidly release the mechanism to work, and the reversing gear module 2 reversely drives the shifting block 31 to enable the rotary rod 32 to shift the switching handle of the circuit breaker to perform the switching-off operation, so that the circuit breaker has a simpler integral structure and can be rapidly realized; the switching-on and switching-off are distinguished through forward rotation and reverse rotation of the motor, so that the switching-on and switching-off are realized more accurately and more rapidly, and the labor is saved.
It is emphasized that: the above embodiments are merely preferred embodiments of the present invention, and the present invention is not limited in any way, and any simple modification, equivalent variation and modification made to the above embodiments according to the technical substance of the present invention still fall within the scope of the technical solution of the present invention.
Claims (9)
1. The quick-release mechanism for the circuit breaker is arranged on an electric operating mechanism and comprises a motor (1) and a reduction gear module (2) driven by the motor (1), and is characterized in that a quick-release module (3) for stirring a switch handle of the circuit breaker is arranged at the output end of the reduction gear module (2), and the quick-release module (3) comprises a rotating member for stirring the switch handle of the circuit breaker and a stirring block (31) for driving the rotating member to rotate; the rotary member comprises a rotary shaft (33) arranged on the bracket (21) and a rotary rod (32) rotating around the rotary shaft (33), the rotary shaft (33) divides the rotary rod (32) into two end parts, one end of the rotary rod (32) is abutted against the poking block (31), and the other end is abutted against the switch handle of the circuit breaker; the rotary rod (32) can swing in two directions, one direction can push the breaker switch handle to conduct opening operation, and when the rotary rod swings in the other direction, the other end of the rotary rod (32) is separated from the breaker switch handle.
2. The quick-release mechanism for a circuit breaker according to claim 1, wherein the rotary member is provided with an elastic body for restoring the rotary member to an initial position.
3. The quick-release mechanism for the circuit breaker according to claim 1, wherein the reduction gear module (2) comprises a bracket (21), a pressing plate (22), a first gear set (23), a second gear set (24), a third gear set (25) and a main gear set (26), wherein the first gear set (23) receives power output by the motor (1) and transmits the power to the second gear set (24), the second gear set (24) transmits the power to the third gear set (25), the third gear set (25) transmits the power to the main gear set (26), and the main gear set (26) outputs the power through a toggle block (31).
4. The quick-release mechanism for circuit breaker according to claim 1, wherein the rotary lever (32) is "L" shaped.
5. A quick release mechanism for a circuit breaker according to claim 3, wherein the main gear set (26) comprises a main shaft (261) mounted between the bracket (21) and the pressing plate (22), a main gear (262) located on the main shaft (261), and the toggle block (31) is disposed on the main gear (262).
6. The quick-release mechanism for the circuit breaker according to claim 1, wherein the contact parts of the two ends of the poking block (31) and the rotating rod (32) are inclined planes or curved surfaces, and the contact parts of the rotating rod (32) and the poking block (31) are rounded.
7. The quick release mechanism for a circuit breaker according to claim 5, wherein the toggle blocks (31) are at least one and are distributed on the end face of the main gear (262).
8. A control method of the arrearage quick release mechanism according to any one of claims 1 to 7, characterized by comprising the steps of:
s1, judging whether the user is an arrearage user according to the payment condition of the user;
s2, when the arrearage user is judged, a quick release signal is sent to an arrearage quick release mechanism; when judging that the user is not arrearage, the method does not act;
s3, the arrearage quick-release mechanism receives the signal to reverse the motor to execute the power-off task.
9. The method for controlling the arrearage quick release mechanism according to claim 8, wherein the manner of executing the arrearage quick release task in the step S3 is that the driving motor (1) is reversed, so that the power direction output by the reduction gear module (2) is opposite, the toggle block (31) is reversely rotated, so that the rotary member reversely rotates, and at the moment, the rotary member pushes the breaker switch handle to move in the opening direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810645468.4A CN108831809B (en) | 2018-06-21 | 2018-06-21 | Arrearage quick-release mechanism for circuit breaker and control method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810645468.4A CN108831809B (en) | 2018-06-21 | 2018-06-21 | Arrearage quick-release mechanism for circuit breaker and control method thereof |
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| Publication Number | Publication Date |
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| CN108831809A CN108831809A (en) | 2018-11-16 |
| CN108831809B true CN108831809B (en) | 2024-03-12 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201810645468.4A Active CN108831809B (en) | 2018-06-21 | 2018-06-21 | Arrearage quick-release mechanism for circuit breaker and control method thereof |
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Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050078121A (en) * | 2004-01-30 | 2005-08-04 | 엘에스산전 주식회사 | Structure of gear box for mechanical charge of vacuum circuit breaker |
| EP2023365A2 (en) * | 2007-08-10 | 2009-02-11 | LS Industrial Systems Co., Ltd | Molded case circuit breaker with contact on mechanism |
| WO2016169086A1 (en) * | 2015-04-24 | 2016-10-27 | 苏州未来电器股份有限公司 | Electric operating mechanism used for micro-breaker |
| CN205723387U (en) * | 2016-06-29 | 2016-11-23 | 乐清市万联电器有限公司 | A kind of high breaking takes the on/off operation mechanism of control breaker |
| CN106373835A (en) * | 2016-12-05 | 2017-02-01 | 威胜电气有限公司 | External breaker of electric energy meter |
| CN107068503A (en) * | 2017-04-25 | 2017-08-18 | 浙江智美电气有限公司 | A kind of automatic division brake control device and its a kind of breaker |
| CN206657790U (en) * | 2017-04-21 | 2017-11-21 | 泉州市大西洋电力科技有限公司 | A kind of auto recloser of breaker |
| WO2017206581A1 (en) * | 2016-05-31 | 2017-12-07 | 乐清市也为电气有限公司 | Moving contact operating mechanism for miniature circuit breaker |
| CN107564775A (en) * | 2017-10-19 | 2018-01-09 | 浙江凯发电气有限公司 | A kind of operating mechanism with detection switch sensor |
| CN107749382A (en) * | 2017-11-16 | 2018-03-02 | 浙江人民电器有限公司 | Operation structure, breaker and the control method of a kind of breaker |
| CN208352240U (en) * | 2018-06-21 | 2019-01-08 | 苏州未来电器股份有限公司 | The fast release mechanism of breaker arrearage |
-
2018
- 2018-06-21 CN CN201810645468.4A patent/CN108831809B/en active Active
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20050078121A (en) * | 2004-01-30 | 2005-08-04 | 엘에스산전 주식회사 | Structure of gear box for mechanical charge of vacuum circuit breaker |
| EP2023365A2 (en) * | 2007-08-10 | 2009-02-11 | LS Industrial Systems Co., Ltd | Molded case circuit breaker with contact on mechanism |
| WO2016169086A1 (en) * | 2015-04-24 | 2016-10-27 | 苏州未来电器股份有限公司 | Electric operating mechanism used for micro-breaker |
| WO2017206581A1 (en) * | 2016-05-31 | 2017-12-07 | 乐清市也为电气有限公司 | Moving contact operating mechanism for miniature circuit breaker |
| CN205723387U (en) * | 2016-06-29 | 2016-11-23 | 乐清市万联电器有限公司 | A kind of high breaking takes the on/off operation mechanism of control breaker |
| CN106373835A (en) * | 2016-12-05 | 2017-02-01 | 威胜电气有限公司 | External breaker of electric energy meter |
| CN206657790U (en) * | 2017-04-21 | 2017-11-21 | 泉州市大西洋电力科技有限公司 | A kind of auto recloser of breaker |
| CN107068503A (en) * | 2017-04-25 | 2017-08-18 | 浙江智美电气有限公司 | A kind of automatic division brake control device and its a kind of breaker |
| CN107564775A (en) * | 2017-10-19 | 2018-01-09 | 浙江凯发电气有限公司 | A kind of operating mechanism with detection switch sensor |
| CN107749382A (en) * | 2017-11-16 | 2018-03-02 | 浙江人民电器有限公司 | Operation structure, breaker and the control method of a kind of breaker |
| CN208352240U (en) * | 2018-06-21 | 2019-01-08 | 苏州未来电器股份有限公司 | The fast release mechanism of breaker arrearage |
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| Publication number | Publication date |
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| CN108831809A (en) | 2018-11-16 |
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