CN2751426Y - Cup-type axial magnetic vacuum arc extinguish chamber contact with iron core - Google Patents
Cup-type axial magnetic vacuum arc extinguish chamber contact with iron core Download PDFInfo
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- CN2751426Y CN2751426Y CN 200420086297 CN200420086297U CN2751426Y CN 2751426 Y CN2751426 Y CN 2751426Y CN 200420086297 CN200420086297 CN 200420086297 CN 200420086297 U CN200420086297 U CN 200420086297U CN 2751426 Y CN2751426 Y CN 2751426Y
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Abstract
The utility model discloses a cup-shaped longitudinal magnetic vacuum arc extinguish chamber contact with an iron core, which can be used for a vacuum switch in electric switches. The utility model comprises cup-shaped longitudinal contacts having the same shapes via butt joint. The utility model is characterized in that stainless steel seats provided with slots are arranged in the stainless steel cup-shaped longitudinal contacts, iron core sheets having the same shapes as the slots are embedded in the stainless steel seats provided with slots, and the cup-shaped longitudinal contacts are provided with contact sheets. The novel contact having the iron core can generate a longitudinal magnetic field which is stronger than that of an original contact, the delay time of the magnetic field is short due to a special vortex preventing design, and thus the opening and breaking capacity of a vacuum arc-extinguishing chamber is enhanced. The utility model has the advantages of simple manufacturing technique, low cost and high reliability.
Description
Technical field
The utility model relates to the vacuum switch in the switchgear, particularly a kind of vacuum arc-extinguishing chamber contact.
Background technology
Switchgear is the critical elements in the electric power system.Vacuum switch is a kind of in the switchgear.Since vacuum switch enters electric power system the beginning of the sixties, the history in existing more than 40 year.More than 85% of this field total output has been captured in China in medium voltate aspect (scope that refers to 7.2kV-40.5kV) at present.Reached 95% in Japan, on average reached in Europe about 80%, comprised that in the North America U.S., Canada etc. have reached the market share of 80-85%.
Vacuum interrupter is the key element of vacuum switch, is undertaking the task of controlling electric arc, and the cut-out of circuit is closed the contact that all leans in the vacuum interrupter with the pass and do not finished.In order to improve the short circuit current connecting-disconnecting function of vacuum interrupter, adopted the magnetic field control technology of vacuum arc.The magnetic field control technology of at present big current vacuum electric arc has two kinds, transverse magnetic field control technology and longitudinal magnetic field control technology.The direction of transverse magnetic field is vertical with the electric arc arc column, and the Ampere force that magnetic field and arc current effect produce drives vacuum arc in the contact surface fast rotational, alleviates the ablation to contact surface, and the connecting-disconnecting function of vacuum switch is strengthened; The direction of longitudinal magnetic field is consistent with electric arc arc column axis direction, after vacuum arc applied longitudinal magnetic field, vacuum arc still keeps disperse state under big electric current, alleviate ablation to contact surface, arc energy reduces simultaneously, therefore longitudinal magnetic field can improve the critical electric current value that forms anode spot, improves connecting-disconnecting function.
Common structure of contact terminal has cup-shaped to indulge the magnetic contact in the longitudinal magnetic field control technology, and coil type is indulged magnetic contact, two plate longitudinal field contact, four pole type longitudinal field contact etc.Wherein the vertical magnetic contact of cup-shaped at home be the most frequently used a kind of longitudinal field contact structure.This structure has " worker " font stainless steel supporting seat in the contact cup, the circumferential component of electric current provided during longitudinal magnetic field was referred to by cup.
Summary of the invention
The purpose of this utility model is intended to propose the vertical magnetic vacuum arc control device structure of contact terminal of a kind of cup-shaped, makes it to have stronger connecting-disconnecting function.
The technical solution that realizes above-mentioned utility model is, a kind of cup-shaped of ribbon core is indulged magnetic vacuum arc control device contact, it comprises that the vertical magnetic contact butt joint of cup-shaped of same structure constitutes, it is characterized in that, in the vertical magnetic contact of cup-shaped, slotted stainless steel seat is installed, the groove of the stainless steel seat of fluting is embedded in the lamination identical with groove shape, on the vertical magnetic contact of cup-shaped contact blade is arranged.
The utility model adds custom-designed iron core on the basis of the vertical magnetic contact of cup-shaped improves, improved the longitudinal flux induction of the vertical magnetic contact of cup-shaped on the one hand, the eddy current effect that has reduced greatly on the other hand to introduce ferromagnetic material and brought, thus the connecting-disconnecting function that cup-shaped is indulged the magnetic vacuum arc control device can be improved.
Description of drawings
Fig. 1 is the vertical magnetic vacuum arc control device contact figure of the novel cup-shaped of ribbon core; Each symbol is among the figure: 1, the vertical magnetic contact of cup-shaped, 2, the stainless steel seat of fluting, 3, lamination, 4, contact blade.
Fig. 2 is the stainless steel seat structure chart of fluting.Symbol is among the figure: 21, stainless steel seat, 22, groove.
Fig. 3 is the lamination structural perspective;
Fig. 4 is the vertical magnetic vacuum arc control device contact figure of the novel cup-shaped of second kind of ribbon core; Each symbol is among the figure: 1, the vertical magnetic contact of cup-shaped, 2, the stainless steel seat of fluting, 3, lamination, 4, contact blade.
Fig. 5 is the stainless steel seat structure chart of slotting in the vertical magnetic vacuum arc control device contact of the novel cup-shaped of second kind of ribbon core.Symbol is among the figure: 21, stainless steel seat, 22, groove.
Fig. 6 is the vertical magnetic vacuum arc control device contact of the novel cup-shaped of the third ribbon core.Each symbol is among the figure: 1, the vertical magnetic contact of cup-shaped, 2, the stainless steel seat of fluting, 3, lamination, 4, contact blade.
The stainless steel seat structure chart of Fig. 7 for slotting in the vertical magnetic vacuum arc control device contact of the novel cup-shaped of the third ribbon core.Symbol is among the figure: 21, stainless steel seat, 22, groove.
Embodiment
The vertical magnetic vacuum arc control device contact embodiment of cup-shaped of the ribbon core that provides below in conjunction with accompanying drawing and inventor is described in further detail the utility model.
As shown in Figure 1, the vertical magnetic vacuum arc control device contact of the cup-shaped of ribbon core comprises that vertical magnetic contact 1 butt joint of two cup-shapeds of same structure constitutes, in the vertical magnetic contact 1 of cup-shaped, slotted stainless steel seat 2 is installed, the groove of the stainless steel seat 2 of fluting is embedded in the lamination identical with groove shape 3, on the vertical magnetic contact 1 of cup-shaped contact blade 4 is arranged.
Electric current can be via the vertical magnetic contact 1 of cup-shaped to contact blade 4, and the contact blade 4 through the vertical magnetic contact 1 of another cup-shaped arrives the vertical magnetic contact 1 of cup-shaped again.Current direction also can be opposite with above-mentioned direction.When electric current flows through in the vertical magnetic contact of cup-shaped, produce the identical toroidal current component of direction, thereby can produce longitudinal magnetic field, and act on the vacuum arc in the contact gap.Owing to introduced two laminations 3, therefore can strengthen longitudinal magnetic field, this longitudinal magnetic field may command vacuum arc still remains on disperse state under bigger drop-out current, thereby has improved the connecting-disconnecting function of vacuum interrupter.Simultaneously, because iron core is a sheet, be clipped in the groove of stainless steel seat, this structure can alleviate the hoop eddy current effect in iron core greatly, thereby reduced magnetic field lag time, the magnetically confined time that plasma is subjected to when making current over-zero is short, and diffusion velocity is fast, thereby has guaranteed the reliability of high connecting-disconnecting function.
The concrete structure of the stainless steel seat of visible fluting in Fig. 2.Comprise stainless steel seat 21 and the groove 22 that is positioned on the stainless steel seat.In accompanying drawing 2, the direction of fluting is for radially.
The concrete structure of visible lamination in Fig. 3.It is the sheet ferromagnetic object that a profile is a cuboid.Can make by electrical pure iron.It is embedded in the groove of stainless steel seat, plays the effect that strengthens longitudinal magnetic field.Owing to this structure arrangement, the eddy current effect in the iron core reduces greatly simultaneously.In addition, this lamination is simple in structure, and is easy to process.
Embodiment 1: the vertical magnetic vacuum arc control device contact of the cup-shaped of ribbon core comprises that vertical magnetic contact 1 butt joint of two cup-shapeds of same structure constitutes, as shown in Figure 1.In the vertical magnetic contact 1 of cup-shaped slotted stainless steel seat 2 is installed, the groove of the stainless steel seat 2 of fluting is embedded in the lamination identical with groove shape 3, on the vertical magnetic contact 1 of cup-shaped contact blade 4 is arranged.
In this embodiment, the structure chart of stainless steel seat 2 has a plurality of radial slots as shown in Figure 2 on stainless steel seat.The structure of lamination as shown in Figure 3.Lamination is embedded in the groove on the stainless steel seat.
Embodiment 2: the vertical magnetic vacuum arc control device structure of contact terminal of the cup-shaped of the ribbon core of present embodiment is fully with embodiment 1, and different is in this embodiment, to have the groove of a plurality of parallel directions on the stainless steel seat 2 with embodiment 1.Structure chart as shown in Figure 5, the structure of lamination 3 is as shown in Figure 3.Lamination is embedded in the groove on the stainless steel seat.
Embodiment 3: the vertical magnetic vacuum arc control device structure of contact terminal of the cup-shaped of the third ribbon core is fully with embodiment 1, and its structure as shown in Figure 6.For convenience's sake, Fig. 6 only shows the structure of a contact, and the structure of another contact is identical with it, two butt joints.It comprises that cup-shaped indulges magnetic contact 1, in the vertical magnetic contact 1 of cup-shaped slotted stainless steel seat 2 is installed, and the groove of the stainless steel seat 2 of fluting is embedded in the lamination identical with groove shape 3, on the vertical magnetic contact 1 of cup-shaped contact blade 4 is arranged.In this embodiment, have a plurality of angled grooves 22 on the stainless steel seat 2/, its structure chart is referring to Fig. 7, the structure of lamination as shown in Figure 3, lamination is embedded in the groove on the stainless steel seat.
Claims (3)
1. the cup-shaped of a ribbon core is indulged magnetic vacuum arc control device contact, it comprises that vertical magnetic contact (1) butt joint of two cup-shapeds of same structure constitutes, it is characterized in that, in the vertical magnetic contact (1) of cup-shaped, slotted stainless steel seat (2) is installed, the groove of the stainless steel seat (2) of fluting is embedded in the lamination identical with groove shape (3), on the vertical magnetic contact (1) of cup-shaped contact blade (4) is arranged.
2. the vertical magnetic vacuum arc control device contact of the cup-shaped of ribbon core as claimed in claim 1 is characterized in that, the groove of the stainless steel seat of described fluting (2) is radial distribution or parallel distribution or the distribution of band certain angle, and groove is penetrating groove or impermeable groove.
3. the vertical magnetic vacuum arc control device contact of the cup-shaped of ribbon core as claimed in claim 1 is characterized in that described lamination (3) is made for ferromagnetic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086297 CN2751426Y (en) | 2004-12-02 | 2004-12-02 | Cup-type axial magnetic vacuum arc extinguish chamber contact with iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420086297 CN2751426Y (en) | 2004-12-02 | 2004-12-02 | Cup-type axial magnetic vacuum arc extinguish chamber contact with iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2751426Y true CN2751426Y (en) | 2006-01-11 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420086297 Expired - Fee Related CN2751426Y (en) | 2004-12-02 | 2004-12-02 | Cup-type axial magnetic vacuum arc extinguish chamber contact with iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2751426Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496518A (en) * | 2011-12-09 | 2012-06-13 | 沈阳工业大学 | Disk-type gyromagnetic vacuum arc extinguish chamber |
| CN102522258A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type gyromagnetic transverse blowing vacuum arc extinguish chamber |
| CN102522256A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type overlapping gyromagnetic vacuum arc extinguish chamber |
| CN102522259A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type overlapping gyromagnetic longitudinal blowing vacuum arc extinguish chamber |
| CN102522257A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disk-type gyromagnet longitudinal-blowing vacuum arc extinguish chamber |
| CN104217888A (en) * | 2014-09-10 | 2014-12-17 | 北京航空航天大学 | Excitation device with longitudinal magnetic field for medium-frequency current test system |
| CN104505300A (en) * | 2014-12-29 | 2015-04-08 | 西安交通大学 | Transverse magnetic field contact of vacuum arc-extinguishing chamber |
| CN106710968A (en) * | 2016-12-20 | 2017-05-24 | 北京双杰电气股份有限公司 | Direct current (DC) contactor |
| CN106783411A (en) * | 2016-12-20 | 2017-05-31 | 北京双杰电气股份有限公司 | A kind of D.C. contactor |
| CN108320997A (en) * | 2018-03-23 | 2018-07-24 | 西安交通大学 | Multipolar system transverse direction magnet structure direct current cut-offs vacuum interrupter and application |
| CN111668064A (en) * | 2019-03-05 | 2020-09-15 | 平高集团有限公司 | Vacuum arc-extinguishing chamber contact, vacuum arc-extinguishing chamber and vacuum circuit breaker |
| CN112582205A (en) * | 2020-12-27 | 2021-03-30 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | Reinforcing rib capable of enhancing switching-on and switching-off magnetic field |
| CN112614738A (en) * | 2020-12-14 | 2021-04-06 | 华中科技大学 | Vacuum arc-extinguishing chamber longitudinal magnetic contact based on ferromagnetic material |
-
2004
- 2004-12-02 CN CN 200420086297 patent/CN2751426Y/en not_active Expired - Fee Related
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102496518B (en) * | 2011-12-09 | 2015-04-15 | 沈阳工业大学 | Disk-type gyromagnetic vacuum arc extinguish chamber |
| CN102522258A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type gyromagnetic transverse blowing vacuum arc extinguish chamber |
| CN102522256A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type overlapping gyromagnetic vacuum arc extinguish chamber |
| CN102522259A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type overlapping gyromagnetic longitudinal blowing vacuum arc extinguish chamber |
| CN102522257A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disk-type gyromagnet longitudinal-blowing vacuum arc extinguish chamber |
| CN102496518A (en) * | 2011-12-09 | 2012-06-13 | 沈阳工业大学 | Disk-type gyromagnetic vacuum arc extinguish chamber |
| CN104217888A (en) * | 2014-09-10 | 2014-12-17 | 北京航空航天大学 | Excitation device with longitudinal magnetic field for medium-frequency current test system |
| CN104505300B (en) * | 2014-12-29 | 2016-03-30 | 西安交通大学 | A kind of vacuum interrupter transverse magnetic field contact |
| CN104505300A (en) * | 2014-12-29 | 2015-04-08 | 西安交通大学 | Transverse magnetic field contact of vacuum arc-extinguishing chamber |
| CN106710968A (en) * | 2016-12-20 | 2017-05-24 | 北京双杰电气股份有限公司 | Direct current (DC) contactor |
| CN106783411A (en) * | 2016-12-20 | 2017-05-31 | 北京双杰电气股份有限公司 | A kind of D.C. contactor |
| CN106783411B (en) * | 2016-12-20 | 2020-08-04 | 北京双杰电气股份有限公司 | Direct current contactor |
| CN106710968B (en) * | 2016-12-20 | 2020-08-04 | 北京双杰电气股份有限公司 | Direct current contactor |
| CN108320997A (en) * | 2018-03-23 | 2018-07-24 | 西安交通大学 | Multipolar system transverse direction magnet structure direct current cut-offs vacuum interrupter and application |
| CN108320997B (en) * | 2018-03-23 | 2019-01-08 | 西安交通大学 | Multipolar system transverse direction magnet structure direct current cut-offs vacuum interrupter and application |
| CN111668064A (en) * | 2019-03-05 | 2020-09-15 | 平高集团有限公司 | Vacuum arc-extinguishing chamber contact, vacuum arc-extinguishing chamber and vacuum circuit breaker |
| CN112614738A (en) * | 2020-12-14 | 2021-04-06 | 华中科技大学 | Vacuum arc-extinguishing chamber longitudinal magnetic contact based on ferromagnetic material |
| CN112582205A (en) * | 2020-12-27 | 2021-03-30 | 中国振华电子集团宇光电工有限公司（国营第七七一厂） | Reinforcing rib capable of enhancing switching-on and switching-off magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |