CN117524789B - Capacitor switching switch - Google Patents
Capacitor switching switch Download PDFInfo
- Publication number
- CN117524789B CN117524789B CN202410020907.8A CN202410020907A CN117524789B CN 117524789 B CN117524789 B CN 117524789B CN 202410020907 A CN202410020907 A CN 202410020907A CN 117524789 B CN117524789 B CN 117524789B
- Authority
- CN
- China
- Prior art keywords
- switch
- transmission rod
- permanent magnet
- vacuum arc
- driving mechanism
- 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.)
- Active
Links
- 239000003990 capacitor Substances 0.000 title claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 230000003068 static effect Effects 0.000 claims description 6
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 230000008713 feedback mechanism Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Classifications
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- 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
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- 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
-
- 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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
-
- 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
- Y02E40/00—Technologies for an efficient electrical power generation, transmission or distribution
- Y02E40/30—Reactive power compensation
Landscapes
- Driving Mechanisms And Operating Circuits Of Arc-Extinguishing High-Tension Switches (AREA)
Abstract
The invention discloses a capacitor switching switch which comprises a permanent magnet driving mechanism, a vacuum arc-extinguishing chamber, a transmission rod, a switching-on and switching-off connecting block, a mounting bracket, a position feedback mechanism and a circuit board, wherein all components of the three-phase switch are distributed in a straight line, the permanent magnet driving mechanism drives the transmission rod to move in a straight line through the driving connecting block on the permanent magnet driving mechanism, and the transmission rod drives the switching-on and switching-off connecting block to act so as to drive a moving contact of the vacuum arc-extinguishing chamber to complete switching on or switching off. The bistable permanent magnet driving mechanism is adopted to directly drive the transmission rod to perform linear motion, so that the traditional transmission shaft, transmission crank arms and other parts are omitted, the structure is simple, parts are reduced, the reliability is greatly improved, and the frequent capacitor switching requirement can be met; meanwhile, the transmission rod and the mounting bracket of the switch are all insulating parts, so that the switch is more compact to mount, the size of the switch is greatly reduced, and the production and application costs are greatly reduced.
Description
Technical Field
The invention relates to the field of high-voltage switches (10 kV), in particular to a capacitor switching switch.
Background
Along with the continuous development of social economy and the continuous improvement of the living standard of people, the method also provides higher and higher requirements on the electric energy quality, and the voltage and electric energy loss are indexes for measuring the electric energy quality. Along with the increase of electricity demand and the continuous input of new energy, the load of the power distribution network is also continuously increased, and under the condition, the loss of the power distribution network is also increased, and the aims of reducing loss and saving energy can be achieved by reactive compensation through the capacitor.
The existing market does not have a special switching switch aiming at the capacitive characteristic of a high-voltage capacitor, the switch applied in the active market is mainly a circuit breaker, as larger surge current is generated when the capacitor is switched in, a contactor cannot bear surge current impact of the capacitor and cannot be adopted, the switching of the capacitor is required to be frequently carried out to realize real-time tracking load compensation, the requirement of frequent switching cannot be met by a common circuit breaker, and a special switch suitable for frequent switching of the capacitor is required. Meanwhile, the switches in the active market all adopt transmission shafts and transmission crank arms to convert rotation into linear motion, the structure is complex, the size is large, and the application requirements in small and compact equipment cannot be met.
Disclosure of Invention
The invention provides a capacitor switching switch, wherein an operating mechanism of the capacitor switching switch adopts a bistable permanent magnet driving mechanism to directly drive a transmission rod to perform linear motion, the traditional transmission shaft, a transmission crank arm and other parts are eliminated, parts are reduced, the structure is simple, and the reliability is greatly improved; simultaneously, the transmission rod and the mounting bracket are both insulating parts, so that the volume of the switch is greatly reduced.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a capacitor switching switch is characterized by adopting a linear driving transmission mode, and comprises a permanent magnet driving mechanism, a vacuum arc extinguishing chamber, a transmission rod, a switching connection block, a mounting bracket, a position feedback switch and a circuit board;
the permanent magnet driving mechanism is fixedly connected with the mounting bracket, and the static contact seat of the vacuum arc-extinguishing chamber is fixedly connected with the mounting bracket;
the driving connecting block on the permanent magnet driving mechanism is fixedly connected with the transmission rod;
The movable contact seat of the vacuum arc-extinguishing chamber is fixedly connected with the transmission rod through the opening and closing connecting block;
The circuit board is arranged on the bracket of the permanent magnet driving mechanism.
According to a preferred embodiment of the invention, there are three vacuum interrupters, one for each phase, and three for each phase, arranged in a straight line.
According to a preferred embodiment of the invention, an insulating plate is arranged on one side of the static contact seat of the vacuum arc extinguishing chamber.
According to a preferred embodiment of the present invention, the permanent magnet driving mechanism drives the transmission rod to move linearly through a driving connection block thereon, and the transmission rod drives the opening and closing connection block to act so as to drive the moving contact of the vacuum arc extinguishing chamber to act, so as to complete the connection or disconnection of the vacuum arc extinguishing chamber.
According to a preferred embodiment of the present invention, the position feedback switch includes a position paddle and a position switch, the position paddle is mounted on the transmission rod, the position switch is mounted on the bracket of the permanent magnet driving mechanism, the transmission rod drives the position paddle to move when moving, the position paddle is connected or disconnected with the position switch, and position information is transmitted through the circuit board.
According to a preferred embodiment of the invention, the permanent magnet drive mechanism is a bistable permanent magnet drive mechanism.
According to a preferred embodiment of the invention, the transmission rod and the mounting bracket are both insulating elements.
Compared with the prior art, the three-phase switch has the beneficial effects that the whole structure of the three-phase switch adopts a linear structure, the driving transmission mode adopts linear motion, and the transmission rod and the mounting bracket both adopt insulating pieces, so that the switch has a simple structure, greatly reduces the volume, greatly improves the reliability, and can be suitable for frequent switching of a capacitor; the switch is applied and installed in compact reactive power compensation equipment to form a miniaturized and compact reactive power compensation device, and the volume and cost of the reactive power compensation device are greatly reduced.
Drawings
Fig. 1 is a schematic diagram of the external shape of a capacitor switching switch according to the present invention.
Fig. 2 is a schematic diagram of the internal structure of a capacitor switching switch according to the present invention.
Detailed Description
The invention is further described below with reference to the accompanying drawings. The embodiments described below are only for more clearly illustrating the technical aspects of the present invention, and are selected embodiments of the present invention, not all embodiments, and are not intended to limit the scope of the present invention. All other embodiments obtained by those skilled in the art without making any inventive effort are within the scope of the present invention.
Referring to fig. 1 and 2, the invention relates to a capacitor switching switch, which is a switch adopting linear driving transmission, and comprises a permanent magnet driving mechanism 1, a vacuum arc extinguishing chamber 2, a transmission rod 3, an opening and closing connecting block 4, a mounting bracket 5, a position feedback switch 6 and a circuit board 7; the permanent magnet driving mechanism 1 is fixedly connected with the mounting bracket 5; the capacitor switching switch is a three-phase switch, each phase is provided with a vacuum arc extinguishing chamber 2, and the three vacuum arc extinguishing chambers 2 are arranged in a straight line; the static contact seat 2.1 of the vacuum arc-extinguishing chamber 2 of each phase is fixedly connected with the mounting bracket 5, and one side of the static contact seat 2.1 is provided with an insulating plate 8 for improving the insulating performance; the movable contact seat 2.2 of each phase of vacuum arc-extinguishing chamber 2 is fixedly connected with the transmission rod 3 through an opening and closing connecting block 4; the driving connecting block 1.1 on the permanent magnet driving mechanism 1 is fixedly connected with the transmission rod 3; the circuit board 7 is arranged on the permanent magnet driving mechanism 1; the position feedback switch 6 comprises a position pulling piece 6.1 and a position switch 6.2, wherein the position pulling piece 6.1 is arranged on the transmission rod 3, and the position switch 6.2 is arranged on a bracket of the permanent magnet driving mechanism 1; the permanent magnet driving mechanism 1 adopts a bistable permanent magnet driving mechanism.
The permanent magnet driving mechanism 1 drives the transmission rod 3 to linearly move through the driving connecting block 1.1 on the permanent magnet driving mechanism, the transmission rod 3 drives the switching-on and switching-off connecting block 4 to act so as to drive the moving contact of the vacuum arc extinguishing chamber 2 to act, and the switching-on or switching-off of the vacuum arc extinguishing chamber 2 is completed. When the transmission rod 3 acts, the position shifting sheet 6.1 on the transmission rod is driven to act, the position shifting sheet 6.1 is connected or disconnected with the position switch 6.2, and position information is transmitted out through the circuit board 7.
In summary, the linear driving transmission design scheme of the capacitor switching switch adopts the permanent magnet driving mechanism to linearly drive the vacuum arc extinguishing chamber to act, so that the mechanical structure is greatly simplified, the reliability of the switch is improved, and the capacitor switching switch is suitable for frequently switching capacitors; meanwhile, all the component parts of the switch are arranged in a straight line, combined and installed or fixed, and the transmission rod and the installation support of the switch are all insulating parts, so that the installation distance of each component of the switch is more compact, the size of the switch is greatly reduced, and the production cost of the switch and the production cost applied to complete products are reduced.
The foregoing is merely a preferred embodiment of the present invention, and it should be noted that it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the mechanical action principle and structure of the present invention, and these changes and modifications should also be regarded as the protection scope of the present invention.
Claims (4)
1. A capacitor switching switch is characterized in that the switch is a switch with a linear structure and a linear driving transmission mode, and comprises a permanent magnet driving mechanism, a vacuum arc extinguishing chamber, a transmission rod, a switching connection block, a mounting bracket, a position feedback switch and a circuit board, wherein all components are arranged in a linear manner and are assembled or fixed;
the transmission rod and the mounting bracket are insulating pieces;
three vacuum arc-extinguishing chambers are arranged in a straight line, wherein each vacuum arc-extinguishing chamber is one of the three vacuum arc-extinguishing chambers;
the permanent magnet driving mechanism drives and drives the three vacuum arc-extinguishing chambers to act through the transmission rod in a linear manner;
The permanent magnet driving mechanism is fixedly connected with the mounting bracket, and the static contact seat of the vacuum arc-extinguishing chamber is fixedly connected with the mounting bracket; an insulating plate is arranged on one side of the static contact seat of the vacuum arc extinguishing chamber;
the driving connecting block on the permanent magnet driving mechanism is fixedly connected with the transmission rod;
The movable contact seat of the vacuum arc-extinguishing chamber is fixedly connected with the transmission rod through the opening and closing connecting block;
The circuit board is arranged on the bracket of the permanent magnet driving mechanism.
2. The capacitor switching switch according to claim 1, wherein the permanent magnet driving mechanism drives the transmission rod to move linearly through a driving connection block thereon, and the transmission rod drives the opening and closing connection block to act so as to drive a moving contact of the vacuum arc extinguishing chamber to act, so that the vacuum arc extinguishing chamber is switched on or off.
3. The capacitor switching switch of claim 1, wherein the position feedback switch comprises a position pulling piece and a position switch, the position pulling piece is mounted on the transmission rod, the position switch is mounted on a bracket of the permanent magnet driving mechanism, the transmission rod drives the position pulling piece to act when acting, the position pulling piece is connected with or disconnected from the position switch, and position information is transmitted out through the circuit board.
4. A capacitor switching switch as in claim 1, wherein said permanent magnet drive mechanism is a bistable permanent magnet drive mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410020907.8A CN117524789B (en) | 2024-01-08 | 2024-01-08 | Capacitor switching switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410020907.8A CN117524789B (en) | 2024-01-08 | 2024-01-08 | Capacitor switching switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117524789A CN117524789A (en) | 2024-02-06 |
| CN117524789B true CN117524789B (en) | 2024-05-24 |
Family
ID=89763101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410020907.8A Active CN117524789B (en) | 2024-01-08 | 2024-01-08 | Capacitor switching switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117524789B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465887U (en) * | 2009-06-10 | 2010-05-12 | 平顶山市康立电气有限责任公司 | Switching switch of high voltage reactive compensation capacitor |
| CN113345731A (en) * | 2020-04-07 | 2021-09-03 | 山东民生电气设备有限公司 | Miniaturized capacitance-regulating switch and capacitance-regulating transformer |
| CN215771055U (en) * | 2021-08-10 | 2022-02-08 | 北京博瑞莱智能科技周口有限公司 | Compound fling-cut switch of condenser and condenser compensating unit |
| CN115064412A (en) * | 2022-06-28 | 2022-09-16 | 山东国信电力科技有限公司 | High-voltage capacitor fling-cut switch and control method thereof |
| CN217822557U (en) * | 2022-06-22 | 2022-11-15 | 西安合容开关有限公司 | Capacitor step-by-step switching device based on permanent magnet vacuum contactor |
-
2024
- 2024-01-08 CN CN202410020907.8A patent/CN117524789B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201465887U (en) * | 2009-06-10 | 2010-05-12 | 平顶山市康立电气有限责任公司 | Switching switch of high voltage reactive compensation capacitor |
| CN113345731A (en) * | 2020-04-07 | 2021-09-03 | 山东民生电气设备有限公司 | Miniaturized capacitance-regulating switch and capacitance-regulating transformer |
| CN215771055U (en) * | 2021-08-10 | 2022-02-08 | 北京博瑞莱智能科技周口有限公司 | Compound fling-cut switch of condenser and condenser compensating unit |
| CN217822557U (en) * | 2022-06-22 | 2022-11-15 | 西安合容开关有限公司 | Capacitor step-by-step switching device based on permanent magnet vacuum contactor |
| CN115064412A (en) * | 2022-06-28 | 2022-09-16 | 山东国信电力科技有限公司 | High-voltage capacitor fling-cut switch and control method thereof |
Also Published As
| Publication number | Publication date |
|---|---|
| CN117524789A (en) | 2024-02-06 |
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