CN114582669A - Breaker with primary and secondary depth fusion - Google Patents
Breaker with primary and secondary depth fusion Download PDFInfo
- Publication number
- CN114582669A CN114582669A CN202210327757.6A CN202210327757A CN114582669A CN 114582669 A CN114582669 A CN 114582669A CN 202210327757 A CN202210327757 A CN 202210327757A CN 114582669 A CN114582669 A CN 114582669A
- Authority
- CN
- China
- Prior art keywords
- igbt
- coil
- capacitor
- shell
- pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000004927 fusion Effects 0.000 title claims description 5
- 230000007246 mechanism Effects 0.000 claims abstract description 40
- 239000003990 capacitor Substances 0.000 claims abstract description 34
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 24
- 230000010354 integration Effects 0.000 abstract description 4
- 230000003068 static effect Effects 0.000 description 4
- 230000009471 action Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008033 biological extinction Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
Images
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H3/00—Mechanisms for operating contacts
- H01H3/22—Power arrangements internal to the switch for operating the driving mechanism
- H01H3/28—Power arrangements internal to the switch for operating the driving mechanism using electromagnet
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/662—Housings or protective screens
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E30/00—Energy generation of nuclear origin
- Y02E30/10—Nuclear fusion reactors
Landscapes
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention belongs to the technical field of power-off equipment of an electric power system, and particularly relates to a breaker with a primary and secondary deep integration, which comprises a breaker shell, wherein a shell door is arranged on a rectangular opening at the front end of the breaker shell; a vacuum bulb at a top of the circuit breaker housing; the movable iron core of the permanent magnetic mechanism is connected with the electrode pull rod of the vacuum bubble, and the closing coil and the opening coil of the permanent magnetic mechanism are connected in series; the control protection piece is fixed on a bottom plate of the breaker shell and used for controlling the movable iron core of the permanent magnet mechanism to move; and the capacitor charger is fixed on the bottom plate of the breaker shell. The control part for protecting and controlling the permanent magnet mechanism by the microcomputer is arranged in the shell of the circuit breaker, a large box body does not need to be arranged independently, and the permanent magnet mechanism can be operated and normally used only by a small control box, so that the operation and the use are convenient, and the cost is saved.
Description
Technical Field
The invention belongs to the technical field of power-off equipment of an electric power system, and particularly relates to a breaker with primary and secondary deep fusion.
Background
The permanent magnetic mechanism circuit breaker is a device capable of instantly cutting off a fault circuit on a line and protecting power supply equipment. The existing permanent magnet mechanism circuit breaker is widely applied to the field of power equipment due to the advantages of reliable performance, long service life and the like. The breaker comprises a permanent magnetic mechanism and a vacuum bubble, wherein the permanent magnetic mechanism comprises a static opening-closing iron core, a static closing iron core, a movable iron core, a permanent magnet, an opening coil and a closing coil, the opening coil and the closing coil are arranged at two ends of the permanent magnetic mechanism, and the movable iron core can be controlled to be attracted to the static opening-closing iron core or the static closing iron core through the opening coil and the opening coil so as to realize the up-and-down motion of the movable iron core. The vacuum bubble is an electric element integrating the on-off circuit, arc extinction and insulation, and is connected with the permanent magnet mechanism through an electrode pull rod of the vacuum bubble, so that the movable iron core of the permanent magnet mechanism drives the electrode pull rod to move up and down when moving up and down, and further the connection and disconnection of a power system circuit are realized.
The current permanent magnet mechanism needs to lead out the secondary current in the primary equipment to the control box through a cable, and a secondary control line and a voltage transformer need to be connected to the control box together, so that the secondary current is easy to open, and the casualties of operation and maintenance personnel are caused. The protection control part for providing an operating power supply for a mechanism coil and controlling the permanent magnet mechanism is generally independently installed in a box, later with the improvement of a circuit breaker, people make a power-taking voltage transformer in primary equipment, which is called as primary and secondary integration, but still need to install the control part for controlling the permanent magnet mechanism in the previous box, so that a box is needed to be independently arranged, and the use is inconvenient. Therefore, the applicant further improves the circuit breaker, and the control part for protecting and controlling the permanent magnetic mechanism is arranged in the shell of the circuit breaker, namely, the control part is deeply integrated for one time and two times, so that the circuit breaker can be controlled through a communication line without a secondary cable by only arranging a small box independently, and the circuit breaker is safe and saves cost.
The information disclosed in this background section is only for enhancement of understanding of the general background of the invention and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.
Disclosure of Invention
The invention aims to provide a primary and secondary depth integration circuit breaker, which arranges a standby power supply part and a control part for controlling a permanent magnet mechanism into a shell of the circuit breaker, does not need to arrange 1 box body independently, is convenient to use and saves cost under the condition of ensuring the normal use of the permanent magnet mechanism.
In order to achieve the purpose, the invention provides the following technical scheme:
a circuit breaker with a second order depth convergence, comprising:
the circuit breaker comprises a circuit breaker shell, a door and a control device, wherein the circuit breaker shell is of a hollow structure with a rectangular opening at the front end; a capacitor is fixed on the inner wall of the shell door;
the vacuum bubbles are arranged at intervals on the top of the breaker shell, and the lower ends of the electrode pull rods of the vacuum bubbles penetrate through the top of the breaker shell and are connected to a connecting plate together;
the permanent magnet mechanism is fixed in the middle of the bottom plate of the breaker shell; the upper end of the movable iron core of the permanent magnetic mechanism is integrally formed with a driving shaft, and the top of the driving shaft is connected to the middle part of the connecting plate; a closing coil and an opening coil in the permanent magnet mechanism are connected in series;
the control part is fixed on a bottom plate of the breaker shell and comprises a first IGBT, a second IGBT, a third IGBT, a fourth IGBT and a control module; the C pole of the first IGBT is connected to the I end of the capacitor, and the E pole of the first IGBT is connected to one end, far away from the opening coil, of the closing coil; the C pole of the second IGBT is connected to one end, far away from the closing coil, of the opening coil, and the E pole of the second IGBT is connected to the II end of the capacitor; the C pole of the third IGBT is connected to the I end of the capacitor, and the E pole of the third IGBT is connected to one end, far away from the closing coil, of the opening coil; the C pole of the fourth IGBT is connected to one end, far away from the opening coil, of the closing coil, and the E pole of the fourth IGBT is connected to the II end of the capacitor; the control module is respectively connected with G poles of the first IGBT, the second IGBT, the third IGBT and the fourth IGBT;
and the capacitor charger is fixed on the bottom plate of the breaker shell and connected with the capacitor, and the capacitor charger charges the capacitor.
Preferably, a travel switch connected with the control module is fixed on a bottom plate of the circuit breaker shell, and the travel switch is positioned below the connecting plate; when the movable iron core of the permanent magnet mechanism moves downwards to the lowest part, the connecting plate is abutted against the travel switch and triggers the travel switch.
Compared with the prior art, the invention has the following beneficial effects:
(1) according to the invention, the control module and the control part of the permanent magnet mechanism are arranged in the shell of the circuit breaker, a large box body is not required to be arranged independently, and the permanent magnet mechanism can be operated and normally used only by a small control box, so that the operation and the use are convenient, and the cost is saved.
(2) The invention improves the connection mode of the coil for the original permanent magnetic mechanism and the connection circuit of the coil and an external control part, connects the closing coil and the opening coil in series, and equivalently increases the number of turns of the coil in the permanent magnetic mechanism. The stress of the movable iron core is in direct proportion to the number of turns of the coil, and the stress of the movable iron core is increased under the condition that the number of turns of the coil is increased, so that switching-on and switching-off can be realized by using a smaller capacitor, and less manufacturing cost is facilitated.
Drawings
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a front view of FIG. 1;
FIG. 3 is a schematic structural diagram of a permanent magnet mechanism according to the present invention;
FIG. 4 is a cross-sectional view of FIG. 3;
FIG. 5 is a schematic diagram of the connection between the control member and the opening and closing coils according to the present invention;
FIG. 6 is a schematic view of a control member of the present invention;
with reference to the description of the reference numbers:
100. a circuit breaker housing; 101. a shell door; 102. a capacitor; 103. a travel switch; 200. vacuum bubble; 201. an electrode pull rod; 202. a connecting plate; 300. a permanent magnet mechanism; 301. a movable iron core; 302. a drive shaft; 303. a closing coil; 304. a brake separating coil; 400. a control member; 401. a first IGBT; 402. a second IGBT; 403. a third IGBT; 404. a fourth IGBT; 405. a control module; 500. a capacitor charger.
Detailed Description
In the following, the technical solutions of the present invention will be described clearly and completely, and it is obvious that the described embodiments are some, not all embodiments of the present invention. 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.
Examples
Referring to fig. 1-6, a circuit breaker with a double depth integration includes:
the circuit breaker comprises a circuit breaker shell 100, a shell door 101 and a shell, wherein the circuit breaker shell 100 is of a hollow structure with a rectangular opening at the front end; a capacitor 102 is fixed on the inner wall of the shell door 101;
a plurality of vacuum bubbles 200 are arranged at intervals on the top of the breaker casing 100, and the lower ends of the electrode pull rods 201 of the plurality of vacuum bubbles 200 penetrate through the top of the breaker casing 100 and are connected to a connecting plate 202 in common; it is not difficult to understand here that the vacuum bubble 200 is fixed on the circuit breaker case 100;
a permanent magnet mechanism 300 fixed to the middle of the bottom plate of the circuit breaker case 100; the upper end of the movable iron core 301 of the permanent magnet mechanism 300 is integrally formed with a driving shaft 302, and the top of the driving shaft 302 is connected to the middle part of the connecting plate 202; a closing coil 303 and an opening coil 304 in the permanent magnet mechanism 300 are connected in series; it should be added here that the permanent magnet mechanism 300 in the present embodiment is the same as that disclosed in publication No. CN 212392150U;
a control member 400 fixed on a bottom plate of the circuit breaker case 100, the control member 400 including a first IGBT401, a second IGBT402, a third IGBT403, a fourth IGBT404, and a control module 405; the C pole of the first IGBT401 is connected to the I end of the capacitor 102, and the E pole is connected to the end of the closing coil 303 far from the opening coil 304; the C pole of the second IGBT402 is connected to the end of the opening coil 304 away from the closing coil 303, and the E pole is connected to the II end of the capacitor 102; the C pole of the third IGBT403 is connected to the I terminal of the capacitor 102, and the E pole is connected to the end of the opening coil 304 away from the closing coil 303; the C pole of the fourth IGBT404 is connected to one end, far away from the opening coil 304, of the closing coil 303, and the E pole is connected to the II end of the capacitor 102; the control module 405 is connected with the G poles of the first IGBT401, the second IGBT402, the third IGBT403 and the fourth IGBT404 respectively; it should be added that 2 control modules 405 in fig. 5 are the same control module 405.
And a capacitor charger 500 fixed to the bottom plate of the circuit breaker case 100 and connected to the capacitor 102, the capacitor charger 500 charging the capacitor 102.
In addition, in the embodiment, a travel switch 103 connected with the control module 405 is fixed on the bottom plate of the circuit breaker housing 100, and the travel switch 103 is positioned below the connecting plate 202; when the plunger 301 of the permanent magnet mechanism 300 moves downward to the lowermost position, the link plate 202 abuts on the stroke switch 103 and triggers the stroke switch 103.
It should be added that, in this embodiment, the control module 405 is connected to an external power supply and an external control switch, and the external control switch is used for sending closing and opening information to the control module 405.
When in use, the circuit breaker in the embodiment is placed at a corresponding use position and is fixed; when the switch-on is needed, the external control switch sends switch-on information to the control module 405, after the control module 405 receives the switch-on information, the first IGBT401 and the second IGBT402 are controlled to be conducted to form a loop, the voltage of the capacitor 102 is loaded on a line formed by connecting the switch-on coil 303 and the switch-off coil 304 in series, the movable iron core 301 moves upwards to the top of the permanent magnet 1 under the action of the switch-on coil 303 and the switch-off coil 304, the driving shaft 302 at the upper end of the movable iron core 301 moves upwards together, and the connecting plate 202 generates upwards thrust on the electrode pull rods 201 of the vacuum bubbles 200 to conduct the power system line, so that the switch-on is completed.
Similarly, when the switching-off is needed, the switching-off information is sent to the control module 405 through the external control switch, after the control module 405 receives the switching-off information, the third IGBT403 and the fourth IGBT404 are controlled to be conducted to form a loop, the voltage of the capacitor 102 is loaded on a line in which the switching-on coil 303 and the switching-off coil 304 are connected in series, at this time, the current directions in the switching-on coil 303 and the switching-off coil 304 are opposite to the current direction during the switching-on, the movable iron core 301 moves downwards to the bottom of the permanent magnet 1 under the action of the switching-on coil 303 and the switching-off coil 304, the driving shaft 302 at the upper end of the movable iron core 301 moves downwards together, and the connecting plate 202 generates a downward pulling force on the electrode pull rods 201 of the plurality of vacuum bubbles 200, so that the circuit of the power system is disconnected, and the switching-off is completed.
It should be noted that, because the closing coil 303 and the opening coil 304 of the permanent magnetic mechanism 300 are connected in series, which is equivalent to that the number of turns of the coil in the permanent magnetic mechanism 300 is increased, the stress of the movable iron core 301 is in direct proportion to the number of turns of the coil, and under the condition that the number of turns of the coil is increased, the stress of the movable iron core 301 is increased, so that closing and opening can be realized by using a smaller capacitor 102, which is beneficial to reduce the manufacturing cost.
In addition, the upward movement or the downward movement of the connection plate 202 may separate from or contact the travel switch 103, and the travel switch 103 sends information to the control module 405 so that the control module 405 determines whether the power system line is open or closed.
The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. It is not intended to limit the invention to the precise form disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the invention and its practical application to enable one skilled in the art to make and use various exemplary embodiments of the invention and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the invention be defined by the claims and their equivalents.
Claims (2)
1. A circuit breaker with a secondary depth fusion function, comprising:
the circuit breaker comprises a circuit breaker shell, a door and a control device, wherein the circuit breaker shell is of a hollow structure with a rectangular opening at the front end; a capacitor is fixed on the inner wall of the shell door;
the vacuum bubbles are arranged at intervals on the top of the breaker shell, and the lower ends of the electrode pull rods of the vacuum bubbles penetrate through the top of the breaker shell and are connected to a connecting plate together;
the permanent magnet mechanism is fixed in the middle of the bottom plate of the breaker shell; a driving shaft is integrally formed at the upper end of the movable iron core of the permanent magnetic mechanism, and the top of the driving shaft is connected to the middle part of the connecting plate; a closing coil and an opening coil in the permanent magnetic mechanism are connected in series;
the control part is fixed on a bottom plate of the breaker shell and comprises a first IGBT, a second IGBT, a third IGBT, a fourth IGBT and a control module; the C pole of the first IGBT is connected to the I end of the capacitor, and the E pole of the first IGBT is connected to one end, far away from the opening coil, of the closing coil; the C pole of the second IGBT is connected to one end, far away from the closing coil, of the opening coil, and the E pole of the second IGBT is connected to the II end of the capacitor; the C pole of the third IGBT is connected to the I end of the capacitor, and the E pole of the third IGBT is connected to one end, far away from the closing coil, of the opening coil; the C pole of the fourth IGBT is connected to one end, far away from the opening coil, of the closing coil, and the E pole of the fourth IGBT is connected to the II end of the capacitor; the control module is respectively connected with G poles of the first IGBT, the second IGBT, the third IGBT and the fourth IGBT;
and the capacitor charger is fixed on the bottom plate of the breaker shell and connected with the capacitor, and the capacitor charger charges the capacitor.
2. The circuit breaker with the secondary depth fusion as claimed in claim 1, wherein a travel switch connected with the control module is fixed on a bottom plate of the circuit breaker housing, and the travel switch is located below the connecting plate; when the movable iron core of the permanent magnet mechanism moves downwards to the lowest part, the connecting plate is abutted against the travel switch and triggers the travel switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327757.6A CN114582669A (en) | 2022-03-31 | 2022-03-31 | Breaker with primary and secondary depth fusion |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210327757.6A CN114582669A (en) | 2022-03-31 | 2022-03-31 | Breaker with primary and secondary depth fusion |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114582669A true CN114582669A (en) | 2022-06-03 |
Family
ID=81777201
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210327757.6A Pending CN114582669A (en) | 2022-03-31 | 2022-03-31 | Breaker with primary and secondary depth fusion |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN114582669A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116666165A (en) * | 2023-06-08 | 2023-08-29 | 伊发控股集团有限公司 | Circuit breaker on degree of depth fuses post |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221863A (en) * | 2007-09-07 | 2008-07-16 | 西安交通大学 | Double-coil Variable Current Control Circuit of Permanent Magnet Mechanism of Vacuum Circuit Breaker |
| CN212392176U (en) * | 2020-07-28 | 2021-01-22 | 广西真舜电力科技有限公司 | Connection structure of circuit breaker utmost point post pull rod |
| CN214254245U (en) * | 2021-02-03 | 2021-09-21 | 深圳市三和电力科技有限公司 | Intelligent permanent magnet vacuum contactor |
-
2022
- 2022-03-31 CN CN202210327757.6A patent/CN114582669A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221863A (en) * | 2007-09-07 | 2008-07-16 | 西安交通大学 | Double-coil Variable Current Control Circuit of Permanent Magnet Mechanism of Vacuum Circuit Breaker |
| CN212392176U (en) * | 2020-07-28 | 2021-01-22 | 广西真舜电力科技有限公司 | Connection structure of circuit breaker utmost point post pull rod |
| CN214254245U (en) * | 2021-02-03 | 2021-09-21 | 深圳市三和电力科技有限公司 | Intelligent permanent magnet vacuum contactor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116666165A (en) * | 2023-06-08 | 2023-08-29 | 伊发控股集团有限公司 | Circuit breaker on degree of depth fuses post |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN115172104B (en) | Bridge type double-breakpoint contactor and breaker | |
| CN115172115B (en) | Non-mechanical switching contact type breaker | |
| CN102403163B (en) | Quick horizontal vacuum switch for flexible power transmission | |
| CN214043580U (en) | Bistable permanent magnet operating mechanism | |
| CN114582669A (en) | Breaker with primary and secondary depth fusion | |
| CN214254245U (en) | Intelligent permanent magnet vacuum contactor | |
| CN101840815B (en) | High dielectric voltage withstand direct-current contactor | |
| CN118471729B (en) | Intelligent protection switch on outdoor column | |
| EP4435816A1 (en) | Magnetic shielding structure for relay contact and relay | |
| CN109427509A (en) | Relay | |
| CN212392176U (en) | Connection structure of circuit breaker utmost point post pull rod | |
| CN102306562B (en) | New type permanent magnetic mechanism switch | |
| CN212725137U (en) | Novel pole-mounted circuit breaker | |
| CN212695103U (en) | Manual opening and closing mechanism of circuit breaker | |
| CN213212054U (en) | Energy-saving non-polar DC contactor | |
| CN202473726U (en) | Outdoor high voltage AC vacuum recloser | |
| CN201698969U (en) | High-insulation and pressure-resistant direct current contactor | |
| CN218471832U (en) | Intelligent permanent magnet vacuum double-main circuit breaker | |
| CN219811442U (en) | Normally closed contactor | |
| CN200990336Y (en) | Outdoor high-voltage permanent magnetic vacuum circuit breaker | |
| CN222462726U (en) | A kind of opening and closing mechanism for vacuum interrupter | |
| CN222507442U (en) | Novel high-voltage circuit breaker | |
| CN222672900U (en) | Magnetic control mechanism of vacuum circuit breaker | |
| CN221262243U (en) | Low-voltage double-coil energy-saving contactor | |
| CN219832449U (en) | Monostable permanent magnet operating mechanism |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |