CN111524758A - Remote negative control locking and opening device of circuit breaker - Google Patents
Remote negative control locking and opening device of circuit breaker Download PDFInfo
- Publication number
- CN111524758A CN111524758A CN202010201586.3A CN202010201586A CN111524758A CN 111524758 A CN111524758 A CN 111524758A CN 202010201586 A CN202010201586 A CN 202010201586A CN 111524758 A CN111524758 A CN 111524758A
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- rod
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- release
- switching
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- 239000013642 negative control Substances 0.000 title claims abstract description 13
- 230000006698 induction Effects 0.000 claims description 7
- 238000006073 displacement reaction Methods 0.000 claims description 5
- 238000004146 energy storage Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 241001391944 Commicarpus scandens Species 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
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- 238000007906 compression Methods 0.000 description 1
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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
-
- 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
- H01H71/66—Power reset mechanisms
- H01H71/68—Power reset mechanisms actuated by electromagnet
-
- 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
- H01H71/66—Power reset mechanisms
- H01H71/70—Power reset mechanisms actuated by electric motor
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- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Breakers (AREA)
Abstract
The invention discloses a remote negative control locking closing and opening device of a circuit breaker, which belongs to the technical field of circuit breakers and comprises a closing and opening mechanism which is arranged in the circuit breaker and used for realizing circuit communication between a three-phase incoming line terminal and a three-phase outgoing line terminal, wherein the closing and opening mechanism realizes the opening of the closing and opening mechanism by a tripping rod controlled by an undervoltage tripper, a thermal tripper, a magnetic tripper and a shunt release are sequentially connected to each single-phase connecting line of the three-phase outgoing line terminal, and the thermal tripper, the magnetic tripper and the shunt release are all controlled by a remote control integrated board; the remote control integrated board comprises a main control unit, and a plurality of relays, a power supply module, a wireless network module and a storage module which are electrically connected with the main control unit. The tripping rod is used for pulling the switching-on and switching-off mechanism to realize the function of total switching-off, and the remote control integrated board controls the thermal release, the magnetic release and the shunt release to remotely control the switching-off of the single-phase line.
Description
Technical Field
The invention relates to the technical field of circuit breakers, in particular to a remote negative control locking closing and opening device of a circuit breaker.
Background
The circuit breaker is a switching device capable of closing, carrying, and opening/closing a current under a normal circuit condition and a current under an abnormal circuit condition within a prescribed time. The circuit breakers are divided into high-voltage circuit breakers and low-voltage circuit breakers according to the application range, the high-voltage and low-voltage boundary lines are relatively vague, and the circuit breakers above 3kV are generally called high-voltage electric appliances. The circuit breaker can be used for distributing electric energy, starting an asynchronous motor infrequently, protecting a power supply circuit, the motor and the like, and automatically cutting off a circuit when faults such as serious overload, short circuit, undervoltage and the like occur, and the function of the circuit breaker is equivalent to the combination of a fuse type switch, an over-under-heat relay and the like. Furthermore, no parts need to be changed after breaking the fault current. At present, it has been widely used. Distribution of electricity is an extremely important link in the generation, transmission and use of electricity. The distribution system comprises a transformer and various high-low voltage electrical equipment, and the low-voltage circuit breaker is an electrical appliance with a large using amount.
The core function of the circuit breaker is a safe cut-off circuit, what plays a decisive role is an opening operation device, the device not only has the function of opening operation, but also has the function of keeping after closing, the safety and the reliability of the device directly relate to the safety and the reliability of the circuit breaker and a power distribution network, the opening and closing of the traditional circuit breaker are generally operated by adopting a mechanical structure or an electronic control mode, the mechanical structure has good stability but needs manual field operation, the operation on a high-voltage circuit has potential safety hazards, the electronic control is easy to break down, three-phase electricity is used in common equipment, once the electronic opening and closing control device on the circuit breaker breaks down, the opening and closing operation cannot be carried out, and the failure rate is high.
Disclosure of Invention
The invention aims to solve the problems that the mechanical structure of the locking closing and opening device of the circuit breaker has potential safety hazards, and the electronic device has high failure rate and is difficult to effectively ensure the use stability of the circuit breaker.
The invention realizes the aim through the following technical scheme, and the remote negative control locking closing and opening device of the circuit breaker comprises a closing and opening mechanism which is arranged in the circuit breaker and used for realizing the circuit communication between a three-phase incoming line terminal and a three-phase outgoing line terminal, wherein the closing and opening mechanism realizes the opening of the closing and opening mechanism by a tripping rod controlled by an undervoltage tripper, each single-phase connecting line of the three-phase outgoing line terminal is sequentially connected with a thermal tripper, a magnetic tripper and a shunt release, and the thermal tripper, the magnetic tripper and the shunt release are all controlled by a remote control integrated board;
the remote control integrated board comprises a main control unit, a plurality of relays, a power supply module, a wireless network module and a storage module, wherein the relays are electrically connected with the main control unit, the relays are sequentially and independently connected with the thermal release, the magnetic release and the shunt release, the wireless network module is used for accessing the internet, and the storage module is used for storing a closing and opening control program.
Preferably, the power module is connected with the induction power taking module, and the power taking coil inside the induction power taking module is close to the three-phase wire to take power so as to store energy for the power module.
Preferably, the switching-on and switching-off mechanism comprises a conductive rod, a main contact and a push rod, wherein the main contact is fixed on the conductive rod and controls the three-phase electric wire to be switched on and off by utilizing the displacement of the conductive rod, the push rod is used for controlling the displacement of the conductive rod, the conductive rod is connected to the middle of the push rod, one end of the conductive rod is connected with the operating handle through the pull rod, and the other end of the conductive rod is in contact.
Preferably, a tripping ball is arranged at the contact end of the tripping rod and the push rod.
Preferably, a traction rope is further installed at the joint of the conducting rod and the push rod, the free end of the traction rope is fixed to the movable end of the opening spring and is wound on the outer wall of the take-up pulley in an extending mode, and the take-up pulley is fixed to a motor shaft of the closing energy storage motor.
Preferably, the undervoltage release is electrically connected with the release button through an auxiliary contact, and the auxiliary contact is fixed on a power-on loop which is connected between the three-phase incoming line terminal and the three-phase outgoing line terminal on the conducting rod.
Preferably, the under-voltage release comprises a push rod of a lever structure, a spring connected with one end of the push rod and an electromagnet magnetically adsorbed at the other end of the push rod, and the push rod can jack the trip rod to lift up to enable the switching-on and switching-off mechanism to switch off when the electromagnet is powered off.
Preferably, a convex block is arranged at the top of one end of the ejector rod, which is contacted with the electromagnet.
Compared with the prior art, the invention has the beneficial effects that:
the tripping rod is lifted up through the characteristic of the undervoltage tripper to realize the opening function of the closing and opening mechanism, the total breaking of the circuit breaker can be realized through the opening, the undervoltage and zero-voltage protection effect can be realized, the thermal tripper, the magnetic tripper and the shunt tripper which are sequentially arranged on each single-phase line can realize the opening control on a single line, the thermal tripper, the magnetic tripper and the shunt tripper are controlled by a remote control integrated board, and an opening and closing instruction is sent to the remote integrated control board through a wireless network, so that the function of accurately controlling the closing and opening of the single line is achieved, the safety of the closing and opening is improved, if the closing and opening mechanism breaks down, only one tripper can also disconnect the whole three-phase electricity, and the distribution of electric energy is more accurate.
Drawings
Fig. 1 is a schematic structural diagram of the overall device of the present invention.
Fig. 2 is a schematic diagram of the connection structure of the internal modules of the remote control integration board of the present invention.
Fig. 3 is a schematic structural diagram of the undervoltage trip of the present invention.
Fig. 4 is a schematic structural diagram of the switching mechanism of the present invention.
In the figure: 1. the three-phase incoming line terminal, 2, three-phase outgoing line terminal, 3, main contact, 4, conducting rod, 5, tripping bar, 6, switching-on/switching-off mechanism, 7, switching-on energy storage motor, 8, take-up pulley, 9, tripping button, 10, auxiliary contact, 11, under-voltage tripper, 12, electromagnet, 13, lug, 14, ejector rod, 15, spring, 16, push rod, 17, pull rod, 18, operating handle, 19, switching-off spring, 20, traction rope, 21 and tripping ball.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1-4, a remote negative control locking switching on and switching off device for a circuit breaker comprises a switching on and switching off mechanism 6 installed inside the circuit breaker and used for realizing circuit communication between a three-phase incoming line terminal 1 and a three-phase outgoing line terminal 2, the switching on and switching off mechanism 6 is realized by a tripping rod 5 controlled by an undervoltage tripper 11, a thermal tripper, a magnetic tripper and a shunt release are sequentially connected to each single-phase connecting line of the three-phase outgoing line terminal 2, and the thermal tripper, the magnetic tripper and the shunt release are all controlled by a remote control integrated board.
The remote control integrated board comprises a main control unit and a plurality of relays electrically connected with the main control unit, a power supply module, a wireless network module and a storage module, wherein the relays are sequentially and independently connected with a thermal release, a magnetic release and a shunt release, the wireless network module is used for accessing the Internet, the storage module is used for storing a switching-on and switching-off control program, the thermal release, the magnetic release and the shunt release are sequentially installed on a single-phase line of a three-phase outgoing line terminal 2, when each release does not work, three-phase electricity can be normally output, the thermal release, the magnetic release and the shunt release can be remotely controlled through the remote control integrated board, the control principle is that the wireless network module of the remote control integrated board is connected with the Internet, control instructions are uploaded to the storage module, and the main control unit calls the instructions from the storage module so as to control the thermal release, And the magnetic release and the shunt release break each single-phase electricity, and if one release or two releases have faults, the circuit breaker is opened through the normal release.
The power module is connected with the induction power taking module, the power taking coil inside the induction power taking module is close to the three-phase electric wire to take power, energy is stored in the power module, and the power taking mode of the induction power taking module can conveniently supply power to the remote control integrated board, so that the power problem is solved.
The switching-on and switching-off mechanism 6 comprises a conductive rod 4, a main contact 3 and a push rod 16, wherein the main contact 3 is fixed on the conductive rod 4 and controls the on-off of a three-phase electric wire by utilizing the displacement of the conductive rod 4, the push rod 16 is in a lever structure, the conductive rod 4 is connected to the middle part of the push rod 16, one end of the conductive rod 4 is connected with an operating handle 18 through a pull rod 17, the other end of the conductive rod is in contact with a tripping rod 5, after the operating handle 18 is pulled down, the pull rod 17 drives the push rod 16 to advance, so that the main contact 3 on the conductive rod 4 is attached to a patch of the three-phase wire inlet terminal 1 to realize switching-on operation, a tripping ball 21 is arranged at the contact end of the tripping rod 5 and the push rod 16, the tripping ball 21 is used for increasing the contact area with the push rod 16, when the tripping rod 5 is lifted, the conductive rod 16 can be easily pushed back to the original position to realize switching-off operation, a traction rope 20 is further arranged at, the take-up pulley 8 is fixed on the motor shaft of combined floodgate energy storage motor 7, and the take-up pulley 8 can tighten up haulage rope 20, makes separating brake spring 19 compression energy storage, and when release ball 21 backed off push rod 16 like this, separating brake spring 19's reaction force can make push rod 16 remove more easily, helps improving separating brake efficiency.
The undervoltage tripper 11 is electrically connected with the trip button 9 through the auxiliary contact 10, the auxiliary contact 10 is fixed on a power-on loop which is connected between the three-phase incoming line terminal 1 and the three-phase outgoing line terminal 2 on the conducting rod 4, the undervoltage tripper 11 comprises a push rod 14 with a lever structure, an extension spring 15 connected with one end of the push rod 14 and an electromagnet 12 with the other end being magnetically adsorbed, the push rod 14 can jack the trip rod 5 to lift up to enable the switching-on and switching-off mechanism 6 to be switched off when the electromagnet 12 is powered off, when the power-on loop is undervoltage, the electromagnet 12 is powered off, the extension spring 15 pulls one end of the push rod 14 at the moment to enable the other end to tilt up, so that the tripping rod 5 is jacked up to achieve the effect of undervoltage switching-off, the top of one end, contacted with the.
It will be evident to those skilled in the art that the invention is not limited to the details of the foregoing illustrative embodiments, and that the present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (8)
1. The utility model provides a long-range burden accuse shutting device of circuit breaker, is used for realizing switching on/off mechanism (6) of circuit intercommunication between three-phase incoming line terminal (1) and three-phase outgoing line terminal (2) including installing inside the circuit breaker, switching on/off mechanism (6) are realized by trip bar (5) of an undervoltage release (11) switching on/off mechanism's (6) separating brake, its characterized in that: each single phase connecting wire of the three-phase outlet terminal (2) is sequentially connected with a thermal release, a magnetic release and a shunt release, and the thermal release, the magnetic release and the shunt release are all controlled by a remote control integrated board;
the remote control integrated board comprises a main control unit, a plurality of relays, a power supply module, a wireless network module and a storage module, wherein the relays are electrically connected with the main control unit, the relays are sequentially and independently connected with the thermal release, the magnetic release and the shunt release, the wireless network module is used for accessing the internet, and the storage module is used for storing a closing and opening control program.
2. The remote negative control locking closing and opening device of the circuit breaker as claimed in claim 1, wherein: the power module is connected with the induction power taking module, and the power taking coil inside the induction power taking module is close to the three-phase wire to take power so as to store energy for the power module.
3. The remote negative control locking closing and opening device of the circuit breaker as claimed in claim 1, wherein: the switching-on/off mechanism (6) comprises a conductive rod (4), a main contact (3) and a push rod (16), wherein the main contact (3) is fixed on the conductive rod (4) and controls the three-phase electric wire to be switched on and off by utilizing the displacement of the conductive rod (4), the push rod (16) controls the displacement of the conductive rod (4), the conductive rod (4) is connected to the middle of the push rod (16), one end of the conductive rod is connected with an operating handle (18) through a pull rod (17), and the other end of the conductive rod is in contact with a trip rod (5).
4. The remote negative control locking closing and opening device of the circuit breaker as claimed in claim 3, wherein: and a tripping ball (21) is arranged at the contact end of the tripping rod (5) and the push rod (16).
5. The remote negative control locking closing and opening device of the circuit breaker as claimed in claim 3, wherein: the connecting part of the conducting rod (4) and the push rod (6) is further provided with a traction rope (20), the free end of the traction rope (20) is fixed at the movable end of the opening spring (19) and is wound on the outer wall of the take-up pulley (8) in an extending mode, and the take-up pulley (8) is fixed on a motor shaft of the closing energy storage motor (7).
6. The remote negative control locking closing and opening device of the circuit breaker as claimed in claim 1, wherein: the undervoltage tripper (11) is electrically connected with the tripping button (9) through an auxiliary contact (10), and the auxiliary contact (10) is fixed on a power-on loop which is connected between the three-phase incoming line terminal (1) and the three-phase outgoing line terminal (2) on the conducting rod (4).
7. The remote negative control locking closing and opening device of the circuit breaker as claimed in claim 1 or 6, wherein: the undervoltage tripper (11) comprises a push rod (14) of a lever structure, an extension spring (15) connected with one end of the push rod (14) and an electromagnet (12) with the other end magnetically adsorbed, and the push rod (14) can jack up the trip bar (5) to lift up to enable the switching-on/off mechanism (6) to switch off when the electromagnet (12) is powered off.
8. The remote negative control locking closing and opening device of the circuit breaker as claimed in claim 7, wherein: and a convex block (13) is arranged at the top of one end of the ejector rod (14) contacted with the electromagnet (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010201586.3A CN111524758A (en) | 2020-03-20 | 2020-03-20 | Remote negative control locking and opening device of circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010201586.3A CN111524758A (en) | 2020-03-20 | 2020-03-20 | Remote negative control locking and opening device of circuit breaker |
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| Publication Number | Publication Date |
|---|---|
| CN111524758A true CN111524758A (en) | 2020-08-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010201586.3A Pending CN111524758A (en) | 2020-03-20 | 2020-03-20 | Remote negative control locking and opening device of circuit breaker |
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| Country | Link |
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| CN (1) | CN111524758A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883155A (en) * | 2021-09-28 | 2022-08-09 | 中国电力科学研究院有限公司 | Voltage-loss brake-separating tripping system and method of circuit breaker |
| CN118888401A (en) * | 2024-08-02 | 2024-11-01 | 德力西电气有限公司 | An operating mechanism and a circuit breaker |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0955660A1 (en) * | 1998-05-08 | 1999-11-10 | Schurter AG | Electric circuit breaker for apparatus having a current overload and undervoltage function and a current overload sensor therefore |
| CN2779587Y (en) * | 2005-02-19 | 2006-05-10 | 周胜 | A/C high voltage vacuum breaker |
| CN101371325A (en) * | 2006-01-23 | 2009-02-18 | 西门子公司 | Method for extending the adjustment range of overload protection device, overload protection device and its application |
| CN103797674A (en) * | 2011-09-16 | 2014-05-14 | 西门子公司 | Device and method for protecting load |
| CN106786346A (en) * | 2017-02-10 | 2017-05-31 | 黑龙江恒讯科技有限公司 | A kind of IP-based miniature circuit breaker |
| CN207834237U (en) * | 2018-01-12 | 2018-09-07 | 李永康 | Neutral line break protects low pressure automatic citrcuit bearker |
-
2020
- 2020-03-20 CN CN202010201586.3A patent/CN111524758A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0955660A1 (en) * | 1998-05-08 | 1999-11-10 | Schurter AG | Electric circuit breaker for apparatus having a current overload and undervoltage function and a current overload sensor therefore |
| CN2779587Y (en) * | 2005-02-19 | 2006-05-10 | 周胜 | A/C high voltage vacuum breaker |
| CN101371325A (en) * | 2006-01-23 | 2009-02-18 | 西门子公司 | Method for extending the adjustment range of overload protection device, overload protection device and its application |
| CN103797674A (en) * | 2011-09-16 | 2014-05-14 | 西门子公司 | Device and method for protecting load |
| CN106786346A (en) * | 2017-02-10 | 2017-05-31 | 黑龙江恒讯科技有限公司 | A kind of IP-based miniature circuit breaker |
| CN207834237U (en) * | 2018-01-12 | 2018-09-07 | 李永康 | Neutral line break protects low pressure automatic citrcuit bearker |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114883155A (en) * | 2021-09-28 | 2022-08-09 | 中国电力科学研究院有限公司 | Voltage-loss brake-separating tripping system and method of circuit breaker |
| CN118888401A (en) * | 2024-08-02 | 2024-11-01 | 德力西电气有限公司 | An operating mechanism and a circuit breaker |
| CN118888401B (en) * | 2024-08-02 | 2025-09-23 | 德力西电气有限公司 | Operating mechanism and circuit breaker |
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Application publication date: 20200811 |