CN113593971A - Integrated structure vacuum arc-extinguishing chamber and vacuum switch using same - Google Patents
Integrated structure vacuum arc-extinguishing chamber and vacuum switch using same Download PDFInfo
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- CN113593971A CN113593971A CN202110881480.7A CN202110881480A CN113593971A CN 113593971 A CN113593971 A CN 113593971A CN 202110881480 A CN202110881480 A CN 202110881480A CN 113593971 A CN113593971 A CN 113593971A
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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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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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
- H01H33/662—Housings or protective screens
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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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
A vacuum arc-extinguishing chamber with an integrated structure and a vacuum switch using the same are disclosed, wherein the vacuum arc-extinguishing chamber with the integrated structure comprises a static side conducting bar, a dynamic side conducting bar integrated with a dynamic side conducting direction, a static side cover plate, a static side ceramic shell, a dynamic side cover plate, a static contact, a shielding case, a dynamic contact integrated with a motion structure and a contact structure inside the arc-extinguishing chamber, and a dynamic permanent magnet disc connected with the dynamic contact; the integrated structure vacuum switch comprises an integrated structure vacuum arc extinguish chamber and an operating mechanism, wherein the operating mechanism consists of a holding permanent magnet and a driving coil wound on the holding permanent magnet, and is fixed below the vacuum arc extinguish chamber by a switch bottom shell; the direction of current passing through the driving coil needs to be matched with the polarity of the permanent magnet, and corresponding closing keeping and opening keeping functions are achieved. On the basis of the insulation design of a full vacuum environment, the invention simplifies the structure of the vacuum arc extinguish chamber, avoids the use of a corrugated pipe and reduces the motion quality.
Description
Technical Field
The invention belongs to the field of vacuum circuit breakers and miniaturized vacuum switches, and particularly relates to a vacuum arc-extinguishing chamber with an integrated structure and a vacuum switch applying the vacuum arc-extinguishing chamber.
Background
The vacuum circuit breaker has strong arc extinguishing capability, small pollution and long service life, is widely used in an alternating current power grid, and gradually begins to be applied in a direct current power transmission system along with the wide application of clean energy power generation such as solar energy and the like and the development of electric automobiles. With the development of vacuum switch technology and the increasing market competition, miniaturized products with reliable performance will have more competitive advantages.
Vacuum interrupters typically comprise three main parts: vacuum interrupter, operating mechanism, support and other parts. The operating mechanism is used for completing the opening and closing operation of the circuit breaker and plays a decisive role in the action of the circuit breaker. The traditional operating mechanism is usually connected with a vacuum arc-extinguishing chamber through an insulating pull rod, and the traditional operating mechanism mainly comprises three types: the electromagnetic operating mechanism, the spring operating mechanism and the permanent magnet operating mechanism. The electromagnetic operating mechanism consists of an electromagnetic coil, an iron core, a brake separating spring and a necessary mechanical locking system; the spring operating mechanism stores all energy required by opening and closing by a spring and pushes the contact of the vacuum arc extinguish chamber to act through a cam mechanism and a connecting rod mechanism; the permanent magnet operating mechanism utilizes the energy stored by the capacitor to energize the opening and closing coil, and the movable iron core is kept at a stable position by the magnetic force of the permanent magnet. Because the operating mechanism is usually more complicated in structure, and the part quantity is many, and the installation cooperation degree of difficulty is big, and insulating pull rod coupling part is also more complicated moreover, and this leads to vacuum circuit breaker bulky, is unfavorable for developing to the miniaturization direction.
The movable wire outlet end of the traditional vacuum arc-extinguishing chamber is generally connected with a conductive clamp and a guide shaft sleeve in a flow guiding and guiding manner, but the conventional conductive clamp can not be fastened completely and slip, so that the conductive effect is influenced. The conductive clamp is fixed on the movable guide rod, so that the quality of a moving part can be improved, and the speed and the effect of the switch-on and switch-off are greatly influenced. In order to ensure the air tightness of the arc extinguish chamber in the movement process, the movable guide rod is also connected with a corrugated pipe, the mechanical life of the corrugated pipe can greatly influence the service life of the circuit breaker, and the insulation strength of the vacuum arc extinguish chamber can also be influenced.
Disclosure of Invention
In order to solve the problems in the prior art and combine a large amount of research and experimental accumulation in the early stage, the invention aims to provide a vacuum arc-extinguishing chamber with an integrated structure and a vacuum switch applied by the vacuum arc-extinguishing chamber. Through the design, the problems of insulation design, flow guide design, movement design and the like in the miniaturization development of the vacuum circuit breaker are solved.
In order to achieve the above purpose, the invention adopts the following technical scheme:
a vacuum arc-extinguishing chamber with an integrated structure comprises a static side conducting bar 101, a movable side conducting bar 107, a static side cover plate 103, a static side ceramic shell 105, a movable side ceramic shell 108, a movable side cover plate 110, a static contact 102, a shielding cover 104, a movable contact 106, a movable side permanent magnet disc 109 and a movable side cover plate 110, wherein the static side conducting bar and the movable side conducting bar are integrated into a whole; the static side cover plate 103, the static side ceramic shell 105, the dynamic side ceramic shell 108 and the dynamic side cover plate 110 are sequentially connected, a vacuum arc extinguish chamber cavity is formed inside the static side cover plate, the static side conducting bar 101 is positioned outside the vacuum arc extinguish chamber cavity and is connected with a static contact 102 positioned in the vacuum arc extinguish chamber cavity, and the shielding cover 104 covers the static contact 102 and the end part of a dynamic contact 106 integrated with a moving structure and a contact structure; the guide rod of the moving contact 106 with the integrated moving structure and contact structure is designed to be thick at the top and thin at the bottom to form a limiting structure, and the arc extinguish chamber is limited on the conductive bar 107 with the integrated moving side conductive direction in the opening process, so that the moving side permanent magnetic disc 109 connected with the moving contact 106 with the integrated moving structure and contact structure is prevented from being in direct contact with the moving side cover plate 110 in the opening state, the isolation of a strong electric part and an operating mechanism part is realized, and the use of an insulating pull rod is avoided; the movable side conductive integrated conductive bar 107 is fixed between the static side ceramic shell 105 and the movable side ceramic shell 108, the middle vertical opening is sleeved outside the thin guide rod of the movable contact 106 integrated with the moving structure and the contact structure and is in sliding contact with the thin guide rod, a current channel between the movable contact and the thin guide rod is formed, the flow guiding effect is realized, meanwhile, the movable side conductive integrated conductive bar 107 limits the movable contact 106 integrated with the moving structure and the contact structure to only vertically move along the opening, the guiding effect is realized, and the use of a conductive clamp and a guide shaft sleeve is reduced.
The connection between the static conductive rod of the static contact 102 and the static side conductive bar 101 is realized by a threaded connection, a fastening connection or a welding rigid connection.
The fixed contact 102 and the moving contact 106 with an integrated moving structure and contact structure adopt a transverse magnetic contact or a longitudinal magnetic contact, and the vacuum arc-extinguishing chamber with the integrated structure can be used for alternating current breaking and direct current breaking.
The moving contact 106 with the integrated moving structure and contact structure is connected with the moving permanent magnet disc 109 by adopting a threaded connection, a fastener connection or a welding rigid connection mode.
The dynamic side permanent magnetic disk 109 is made of engineering pure iron or magnetic stainless steel; rectangular or cylindrical bodies are adopted.
The arc extinguish chamber moving side cover plate 110 adopts non-magnetic conducting materials which are easy to be welded with the moving side porcelain shell 108.
A vacuum switch with an integrated structure comprises a vacuum arc extinguish chamber 201 with the integrated structure and an operating mechanism 202, wherein the operating mechanism 202 consists of a holding permanent magnet 112 and a driving coil 111 wound on the holding permanent magnet 112, and is fixed below the vacuum arc extinguish chamber 201 by a switch bottom shell 113; the winding direction of the driving coil 111 and the direction of the current passing therethrough are arbitrarily set, but need to match the polarity of the holding permanent magnet 112; when the permanent magnet 112 is kept to play the opening and keeping functions: the polarity of the movable permanent magnet disk 109 and the polarity of the holding permanent magnet 112 on the side close to the movable cover plate 110 are opposite; when the permanent magnet 112 is kept in the closing keeping function: the polarity of the moving-side permanent magnet disk 109 and the polarity of the holding permanent magnet 112 on the side close to the moving-side cover plate 110 are both N-pole or both S-pole.
The material of the permanent magnet 112 is kept to be engineering pure iron or magnetic stainless steel; rectangular or cylindrical bodies are adopted.
The switch bottom shell 113 is made of non-magnetic material which is easy to weld with the moving side porcelain shell 108.
When the vacuum circuit breaker works in a closing keeping state, no current flows in the driving coil 111 in the closing state, the polarities of the movable permanent magnet disc 109 and the keeping permanent magnet 112 close to the movable side cover plate 110 are the same, and the static contact 102 and the moving contact 106 are ensured to be attached under the repulsion action; during opening, enough current is introduced into the driving coil 111 to generate and maintain a magnetic field with opposite polarity and higher strength of the permanent magnet 112, so that the moving contact 106 moves downwards to complete opening, and meanwhile, the opening limit on the moving contact 106 limits the action amplitude of the moving contact 106, the direct contact between the moving-side permanent magnet disc 109 and the moving-side cover plate 110 is avoided, and the insulation strength is ensured.
Compared with the prior art, the invention has the following advantages:
1. the invention simplifies the structure of the vacuum arc extinguish chamber, realizes the guide by utilizing the conductive bar integrating the movable side and the side guide into a whole, plays a role in guiding, reduces the use of the conductive clamp and the guide shaft sleeve, reduces the movement quality, and reduces the volume of the vacuum arc extinguish chamber and the design problem of the guide.
2. The invention skillfully designs the opening limit on the moving contact with the integration of the moving structure and the contact structure, and isolates the moving permanent magnetic disc from the moving side cover plate by utilizing the vacuum environment, thereby avoiding the insulation problem of the vacuum arc extinguish chamber caused by contact.
3. The invention designs a non-contact electromagnetic operating mechanism, which realizes the complete isolation of strong and weak current parts, avoids the use of a corrugated pipe and a conductive clamp and reduces the motion quality.
4. The invention has simple structure and easy assembly, and promotes the application of the vacuum circuit breaker in the field of miniaturization.
Drawings
Fig. 1(a) is a cross-sectional view showing a switching-off state of the vacuum interrupter with an integrated structure according to the present invention.
Fig. 1(b) is a cross-sectional view showing a closing state of the vacuum interrupter having an integrated structure according to the present invention.
Fig. 2 is an isometric view of a unitary structure vacuum interrupter of the present invention.
Fig. 3 is a cross-sectional view of the matching of the moving contact of the vacuum arc-extinguishing chamber with an integrated structure and the conductive bar integrated with the moving side conductive direction.
Fig. 4 is an isometric view of a one-piece vacuum switch of the present invention.
Fig. 5 is a sectional view showing the opening state of the vacuum switch with an integrated structure according to the present invention.
Fig. 6(a) is a cross-sectional view of the vacuum switch operating mechanism with integrated structure of the present invention, which is in a closing state when the permanent magnet is kept opening and closing.
Fig. 6(b) is a cross-sectional view of the integrated structure vacuum switch operating mechanism of the present invention in the opening state when the permanent magnet is kept in the opening state.
Fig. 7(a) is a cross-sectional view of the integrated structure vacuum switch operating mechanism of the present invention in an open state when the permanent magnet is kept in an open state and a close state.
Fig. 7(b) is a cross-sectional view of the vacuum switch operating mechanism with integrated structure of the present invention, which is in a closing state when the permanent magnet is kept to be opened and closed.
Detailed Description
The invention is described in further detail below with reference to the following figures and specific embodiments.
Fig. 1(a) and 1(b) are sectional views illustrating an opening state and a closing state of a vacuum interrupter with a unified structure according to the present invention, and fig. 2 is an isometric view illustrating a vacuum interrupter with a unified structure according to the present invention. As shown in fig. 1 and fig. 2, the vacuum interrupter 201 with an integrated structure of the present invention includes a static side conducting bar 101, a moving side conducting bar 107, a static side cover plate 103, a static side ceramic shell 105, a moving side ceramic shell 108, a moving side cover plate 110, a static contact 102, a shielding cover 104, a moving contact 106, a moving side permanent magnetic disk 109, and a moving side cover plate 110, which are integrated into a moving structure and a contact structure; the static side cover plate 103, the static side ceramic shell 105, the dynamic side ceramic shell 108 and the dynamic side cover plate 110 are sequentially connected, a vacuum arc extinguish chamber cavity is formed inside the static side cover plate, the static side conducting bar 101 is positioned outside the vacuum arc extinguish chamber cavity and is connected with a static contact 102 positioned in the vacuum arc extinguish chamber cavity, and the shielding cover 104 covers the static contact 102 and the end part of a dynamic contact 106 integrated with a moving structure and a contact structure; the guide rod of the moving contact 106 with the integrated moving structure and contact structure is designed to be thick at the top and thin at the bottom to form a limiting structure, the arc extinguish chamber is limited on the conductive bar 107 with the integrated moving side conductive direction in the opening process, the direct contact between the moving side permanent magnetic disc 109 connected with the moving contact 106 with the integrated moving structure and contact structure and the moving side cover plate 110 in the opening state is avoided, the isolation of a strong current part and an operating mechanism part is realized through vacuum gap insulation, the use of an insulating pull rod is avoided, and the structure of the vacuum switch is more compact; the movable side conductive integrated conductive bar 107 is fixed between the static side ceramic shell 105 and the movable side ceramic shell 108, the middle vertical opening is sleeved outside the thin guide rod of the movable contact 106 integrated with the moving structure and the contact structure and is in sliding contact with the thin guide rod, a current channel between the movable contact and the thin guide rod is formed, the flow guiding effect is realized, meanwhile, the movable side conductive integrated conductive bar 107 limits the movable contact 106 integrated with the moving structure and the contact structure to only vertically move along the opening, the guiding effect is realized, and the use of a conductive clamp and a guide shaft sleeve is reduced.
As a preferred embodiment of the present invention, the connection between the static conductive rod of the static contact 102 and the static side conductive bar 101 is a threaded connection, a connection with a fastener, or a rigid connection by welding.
As a preferred embodiment of the present invention, the fixed contact 102 and the movable contact 106 with an integrated moving structure and contact structure adopt a transverse magnetic contact or a longitudinal magnetic contact, and the vacuum interrupter with the integrated structure can be used for both ac and dc disconnection.
In a preferred embodiment of the present invention, the movable contact 106 integrated with the moving structure and the contact structure is connected to the movable permanent magnet disk 109 by a screw connection, a fastening connection or a welding rigid connection.
Fig. 3 is a schematic diagram of the matching of the moving contact of the vacuum interrupter with an integrated structure and the conductive bar with an integrated moving side conductive direction, which shows the matching manner of the moving contact 106 and the conductive bar 107 with an integrated moving side conductive direction and the opening limit structure.
Fig. 4 is an isometric view and fig. 5 is a cross-sectional view of the integrally structured vacuum switch of the present invention. As shown in fig. 4 and 5, a vacuum switch with an integrated structure comprises a vacuum interrupter 201 with an integrated structure and an operating mechanism 202, wherein the operating mechanism 202 is composed of a holding permanent magnet 112 and a driving coil 111 wound on the holding permanent magnet 112, and is fixed below the vacuum interrupter 201 by a switch bottom shell 113; the winding direction of the driving coil 111 and the direction of the current passing therethrough are arbitrarily set, but need to match the polarity of the holding permanent magnet 112; when the permanent magnet 112 is kept to play the opening and keeping functions: the polarity of the movable permanent magnet disk 109 and the polarity of the holding permanent magnet 112 on the side close to the movable cover plate 110 are opposite; when the permanent magnet 112 is kept in the closing keeping function: the polarity of the moving-side permanent magnet disk 109 and the polarity of the holding permanent magnet 112 on the side close to the moving-side cover plate 110 are both N-pole or both S-pole.
The materials of the movable permanent magnet disc 109 and the holding permanent magnet 112 can be engineering pure iron or magnetic stainless steel or other magnetic materials; rectangular parallelepiped, cylindrical or other shapes may be used.
The switch bottom shell 113 and the arc extinguish chamber moving side cover plate 110 can adopt any non-magnetic conducting materials, but need to be easily welded with the moving side porcelain shell 108.
Fig. 6(a) is a cross-sectional view of the vacuum switch operating mechanism with integrated structure of the present invention, which is in a closing state when the permanent magnet is kept opening and closing. When the permanent magnet 112 in the vacuum switch operating mechanism is opened and closed for keeping, the polarities of the moving-side permanent magnet disk 109 and the permanent magnet 112 close to the moving-side cover plate 110 are different, taking N and S in the magnetizing direction of the moving-side permanent magnet disk 109 and N and S in the magnetizing direction of the permanent magnet 112 as an example. When the brake is switched off, current is introduced into the driving coil 111 to generate a magnetic field with the same direction as that of the magnetic field of the permanent magnet 112, the moving-side permanent magnet disc 109 drives the moving contact 106 with the integrated moving structure and contact structure to move downwards under the combined action of the magnetic fields generated by the permanent magnet 112 and the driving coil 111, the current in the driving coil 111 is cut off after the moving contact moves to the brake-off position, and the permanent magnet 112 is kept to generate the magnetic field to play a role in maintaining the brake-off.
Fig. 6(b) is a cross-sectional view of the integrated structure vacuum switch operating mechanism of the present invention in the opening state when the permanent magnet is kept in the opening state. When the switch is switched on, the driving coil 111 is electrified to generate a magnetic field which is opposite to the direction of the magnetic field of the permanent magnet 112 and has a magnetic field intensity larger than that of the magnetic field of the permanent magnet 112, and the moving contact 106 with the integrated moving structure and contact structure is driven to move upwards to the switch-on position and then the current in the driving coil 111 is kept, so that the moving contact 106 with the integrated moving structure and contact structure is kept in the switch-on state.
Fig. 7(a) is a cross-sectional view of the integrated structure vacuum switch operating mechanism of the present invention in an open state when the permanent magnet is kept in an open state and a close state. When the permanent magnet 112 is kept switched on and switched off in the vacuum switch operating mechanism, the polarities of the movable permanent magnet disk 109 and the permanent magnet 112 close to the movable cover plate 110 are the same, and take S-N in the magnetizing direction of the movable permanent magnet disk 109 and N-S in the magnetizing direction of the permanent magnet 112 as an example. When the switch is switched on, current is introduced into the driving coil 111 to generate a magnetic field with the same direction as the magnetic field of the permanent magnet 112, the moving-side permanent magnet disc 109 drives the moving contact 106 with the integrated moving structure and contact structure to move upwards under the combined action of the magnetic fields generated by the permanent magnet 112 and the driving coil 111, the current in the driving coil 111 is cut off after the moving contact moves to the switch-on position, and the magnetic field generated by the permanent magnet 112 is kept to play a role in keeping the switch on.
Fig. 7(b) is a cross-sectional view of the vacuum switch operating mechanism with integrated structure of the present invention, which is in a closing state when the permanent magnet is kept opening and closing. When the brake is opened, the driving coil 111 is electrified to generate a magnetic field which is opposite to the direction of the magnetic field of the permanent magnet 112 and has a magnetic field intensity larger than that of the magnetic field of the permanent magnet 112, and the moving contact 106 with the integrated moving structure and contact structure is driven to move downwards to the brake opening position and then the current in the driving coil 111 is kept, so that the moving contact 106 with the integrated moving structure and contact structure is kept in the brake opening state.
Compared with the traditional vacuum switch, the vacuum arc-extinguishing chamber with the integrated structure and the vacuum switch using the vacuum arc-extinguishing chamber have the following advantages that: the invention simplifies the structure of the vacuum arc extinguish chamber, realizes the guide by utilizing the conductive bar integrating the movable side and the side conductive direction, plays a role in guiding, reduces the use of the conductive clamp and the guide shaft sleeve, reduces the motion quality, and reduces the volume of the vacuum arc extinguish chamber and the design problem of the guide; the invention skillfully designs the opening limit on the moving contact with the integration of the moving structure and the contact structure, thereby solving the insulation problem of the vacuum arc-extinguishing chamber; the invention designs a non-contact electromagnetic operating mechanism, realizes the insulation design in a full vacuum environment, and avoids the use of a corrugated pipe and a conductive clamp; the invention has simple structure and easy assembly, and promotes the application of the vacuum circuit breaker in the field of miniaturization.
The present invention is not limited to the above preferred embodiments, and those skilled in the art can make modifications and variations to the vacuum interrupter of the present invention and the vacuum switch using the same in accordance with the teachings of the present invention. All such modifications and variations are intended to be included herein within the scope of this disclosure.
Claims (9)
1. The utility model provides an integrated structure vacuum interrupter which characterized in that: the integrated structure vacuum arc extinguish chamber (201) comprises a static side conducting bar (101), a movable side conducting bar (107) which is integrated with a conducting direction, a static side cover plate (103), a static side ceramic shell (105), a movable side ceramic shell (108), a movable side cover plate (110), a static contact (102), a shielding case (104), a movable contact (106) which is integrated with a moving structure and a contact structure, a movable side permanent magnet disc (109) and a movable side cover plate (110); the static side cover plate (103), the static side ceramic shell (105), the moving side ceramic shell (108) and the moving side cover plate (110) are sequentially connected, a vacuum arc extinguish chamber cavity is formed inside the static side ceramic shell, the static side conductive bar (101) is positioned outside the vacuum arc extinguish chamber cavity and is connected with a static contact (102) positioned in the vacuum arc extinguish chamber cavity, and a shielding cover (104) covers the static contact (102) and the end part of a moving contact (106) with an integrated moving structure and a contact structure; the guide rod of the moving contact (106) with the integrated moving structure and contact structure is designed to be thick at the top and thin at the bottom to form a limiting structure, the arc extinguish chamber is limited on the moving side conductive row (107) which is integrated with the moving contact (106) with the integrated moving structure and contact structure in the opening process, and the direct contact between a moving side permanent magnetic disc (109) connected with the moving contact (106) with the integrated moving structure and contact structure and a moving side cover plate (110) is avoided when the arc extinguish chamber is in the opening state, so that the isolation of a strong current part and an operating mechanism part is realized, and the use of an insulating pull rod is avoided; the movable side conductive integrated conductive bar (107) is fixed between the static side ceramic shell (105) and the movable side ceramic shell (108), the middle vertical opening is sleeved outside the thin guide rod of the movable contact (106) with the integrated moving structure and contact structure and is in sliding contact with the thin guide rod, a current channel between the movable contact and the thin guide rod is formed, the flow guiding effect is realized, meanwhile, the movable side conductive integrated conductive bar (107) limits the movable contact (106) with the integrated moving structure and contact structure to only vertically move along the opening, the guiding effect is realized, and the use of the conductive clamp and the guide shaft sleeve is reduced.
2. The structurally integrated vacuum interrupter as claimed in claim 1, wherein: the static conducting rod of the static contact (102) is connected with the static side conducting bar (101) in a threaded connection mode, a fastening piece connection mode or a welding rigid connection mode.
3. The structurally integrated vacuum interrupter as claimed in claim 1, wherein: the static contact (102) and the moving contact (106) with the integrated moving structure and contact structure adopt a transverse magnetic contact or a longitudinal magnetic contact, and the vacuum arc-extinguishing chamber with the integrated structure can be used for alternating current breaking and direct current breaking.
4. The structurally integrated vacuum interrupter as claimed in claim 1, wherein: the moving contact (106) with the integrated moving structure and contact structure is connected with the moving permanent magnet disc (109) in a threaded connection mode, a fastener connection mode or a welding rigid connection mode.
5. The structurally integrated vacuum interrupter as claimed in claim 1, wherein: the dynamic side permanent magnetic disk (109) is made of engineering pure iron or magnetic stainless steel; rectangular or cylindrical bodies are adopted.
6. The structurally integrated vacuum interrupter as claimed in claim 1, wherein: the arc extinguish chamber moving side cover plate (110) adopts non-magnetic conductive material which is easy to be welded with the moving side porcelain shell (108).
7. The utility model provides an integral structure vacuum switch which characterized in that: comprising a structurally integrated vacuum interrupter (201) according to any one of claims 1 to 7 and an actuator (202), the actuator (202) being composed of a holding permanent magnet (112) and a drive coil (111) wound around the holding permanent magnet (112) and being fixed by a switch bottom housing (113) below the vacuum interrupter (201); the winding direction of the driving coil (111) and the direction of current passing through the driving coil are arbitrarily set, but the polarity of the driving coil is matched with that of the permanent magnet (112); when the permanent magnet (112) is kept to play the opening and keeping functions: the polarity of the movable permanent magnet disc (109) is opposite to that of the permanent magnet (112) on the side close to the movable cover plate (110); when the permanent magnet (112) is kept to play a closing keeping function: the moving side permanent magnet disc (109) and the holding permanent magnet (112) are both N poles or both S poles with the same polarity on the side close to the moving side cover plate (110).
8. A structurally integrated vacuum switch as claimed in claim 7, wherein: the material of the permanent magnet (112) is engineering pure iron or magnetic stainless steel; rectangular or cylindrical bodies are adopted.
9. A structurally integrated vacuum switch as claimed in claim 7, wherein: the switch bottom shell (113) adopts a non-magnetic conductive material which is easily welded with the moving side porcelain shell (108).
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| CN202110881480.7A CN113593971B (en) | 2021-08-02 | 2021-08-02 | Integrated structure vacuum arc-extinguishing chamber and vacuum switch using same |
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| CN202307674U (en) * | 2011-10-20 | 2012-07-04 | 北京华东森源电气有限责任公司 | Vacuum arc extinguish chamber and vacuum breaker using same |
| CN203966962U (en) * | 2014-08-02 | 2014-11-26 | 浙江沈高所电气有限公司 | A kind of laborsaving minute brake structure of vacuum circuit-breaker |
| CN105788954A (en) * | 2016-05-17 | 2016-07-20 | 国网山东省电力公司济南市长清区供电公司 | Vacuum circuit breaker |
| CN207947213U (en) * | 2017-12-28 | 2018-10-09 | 毛红玲 | A kind of double power source vacuum arc-chutes for capableing of cushion impact forces |
| CN208922972U (en) * | 2018-10-15 | 2019-05-31 | 南通紫升科技有限公司 | A kind of new vacuum-tube |
| CN209388942U (en) * | 2019-03-13 | 2019-09-13 | 上海甬亿电器有限公司 | A kind of double-fracture outdoor high-voltage isolation on-load switch |
| CN210091978U (en) * | 2019-07-12 | 2020-02-18 | 汕头市崎碌电器实业有限公司 | Novel vacuum arc extinguish chamber |
| CN211062648U (en) * | 2019-11-22 | 2020-07-21 | 山东民生电气设备有限公司 | Miniaturized vacuum arc-extinguishing chamber |
| CN212365824U (en) * | 2020-11-16 | 2021-01-15 | 南京全屋电器开关有限公司 | Novel high-low voltage isolating switch |
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