CN202332705U - Disc type gyromagnetic cross-blast vacuum interrupter - Google Patents
Disc type gyromagnetic cross-blast vacuum interrupter Download PDFInfo
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- CN202332705U CN202332705U CN2011205116701U CN201120511670U CN202332705U CN 202332705 U CN202332705 U CN 202332705U CN 2011205116701 U CN2011205116701 U CN 2011205116701U CN 201120511670 U CN201120511670 U CN 201120511670U CN 202332705 U CN202332705 U CN 202332705U
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- contact cup
- arc
- iron core
- utility
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- 238000004804 winding Methods 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 17
- 230000009471 action Effects 0.000 abstract description 3
- 238000007664 blowing Methods 0.000 abstract 1
- 238000010891 electric arc Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 5
- 230000003068 static effect Effects 0.000 description 5
- 230000008033 biological extinction Effects 0.000 description 4
- 238000011160 research Methods 0.000 description 4
- 238000002679 ablation Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 238000011161 development Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 238000013021 overheating Methods 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 238000003723 Smelting Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000007935 neutral effect Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
本实用新型属真空断路器领域，尤其涉及盘式旋磁横吹真空灭弧室，它包括导电杆（1）、触头杯底（2）、铁芯（7）及触头杯（3）；所述触头杯底（2）及触头杯（3）与导电杆（1）依次固定配接；在所述触头杯（3）上等份开有环流槽；所述环流槽与导电杆（1）纵轴线的偏角为15～35°；所述铁芯（7）置入触头杯（3）内；在所述铁芯（7）上等份开有绕组槽（6）；线圈绕组（8）沿径向呈辐射状分布成盘式结构；在触头杯底（2）的端部固定设有触头片。本实用新型通过旋转磁场的强力作用，同时在纵向磁场作用下，可以降低电弧电压，驱使电弧弧柱在阳极表面均匀分布，加速电弧能量释放，提高真空断路器的开断能力。
The utility model belongs to the field of vacuum circuit breakers, in particular to a disk-type rotary magnetic cross-blowing vacuum interrupter, which includes a conductive rod (1), a contact cup bottom (2), an iron core (7) and a contact cup (3); The bottom of the contact cup (2) and the contact cup (3) are fixedly connected with the conductive rod (1) in turn; there are circulation grooves in equal parts on the contact cup (3); the circulation groove and the conductive The deflection angle of the longitudinal axis of the rod (1) is 15-35°; the iron core (7) is placed in the contact cup (3); winding slots (6) are equally divided on the iron core (7) ; The coil windings (8) are radially distributed into a disk structure; the end of the contact cup bottom (2) is fixed with a contact piece. The utility model can reduce the arc voltage through the strong action of the rotating magnetic field and the action of the longitudinal magnetic field at the same time, so that the arc column is evenly distributed on the anode surface, accelerates the release of arc energy, and improves the breaking capacity of the vacuum circuit breaker.
Description
Technical field
The utility model belongs to the vacuum circuit-breaker field, relates in particular to the horizontal vacuum interrupter that blows of a kind of disc type gyromagnet.
Background technology
Vacuum circuit-breaker because of its arc-extinguishing medium and arc extinguishing after the dielectric in contact gap all be that high vacuum is gained the name; It has volume little, in light weight, be applicable to the advantage that frequent operation, arc extinguishing need not overhaul, in power distribution network, use comparatively universal.1893, the Li Dunhaosi of the U.S. proposed the simple vacuum interrupter of structure, and has obtained design patent.Nineteen twenty Sweden Fo Jia company has processed vacuum switch for the first time.The achievement in research of nineteen twenty-six U.S. Soren announcement such as gloomy has also shown the possibility of breaking current in a vacuum, but because of breaking capacity is little, receives the restriction of vacuum technique and vacuum material development level again, still can not drop into actual use.Along with the development of vacuum technique, the fifties, first vacuum switch that is applicable to specific (special) requirements such as cut-out capacitor group was just processed by the U.S., and breaking current still is parked in the level of 4 kilo-amperes.Because the breakthrough that is obtained in progress on the vacuum material smelting technique and the contacts of vacuum switch structural research, 1961, it was the vacuum circuit-breaker of 12.5 kilo-amperes that GE begins to produce 15 kilovolts, breaking current.Manufactured experimently into the vacuum circuit-breaker of 15 kilovolts, 26 kilo-amperes and 31.5 kilo-amperes in 1966, thereby make vacuum circuit-breaker get into high voltage, jumbo electric power system.The mid-80, the breaking capacity of vacuum circuit-breaker has reached 100 kilo-amperes.China developed vacuum switch since 1958, nineteen sixty Xi'an Communications University to be developed into first 6.7 kilovolts, breaking capacity jointly with Xi'an switching rectifier factory be 600 vacuum switches of pacifying; Processing 10 kilovolts, breaking capacity subsequently again is the three-phase vacuum switch of 1.5 kilo-amperes.1969 time photoelectron pipe factory and Xian High voltage Apparatus Research Institute processed 10 kilovolts, the single-phase fast vacuum switch of 2 kilo-amperes.After the seventies, China can independently develop and produce the vacuum switch of all size.
The dull and stereotyped contact of disc, transverse magnetic field contact and longitudinal field contact three phases have mainly been experienced in the improvement of vacuum arc-extinguishing chamber contact structure.
(1) the dull and stereotyped contact of disc: the dull and stereotyped structure of contact terminal of disc is simple, and mechanical strength is high, is generally used in vacuum load switch or the vacuum contactor.For the dull and stereotyped contact of disc, when drop-out current was big, spot will appear in anode, and vacuum arc will produce strong shrinkage phenomenon, and metal vapors electric arc will be shrinkage type by diffusion-type transition, and then cause cut-offfing failure.
(2) transverse magnetic field contact: have helicla flute on the contact blade and when electric current flows through contact, will produce a magnetic field vertical with the arc column axis direction.Transverse magnetic field contact and arc current interact and the Lorentz force that produces along the circumferential direction moves electric arc; Transverse magnetic field can elongate the camber in when motion; Make arc voltage and arc energy quantitative change big, cause connecting-disconnecting function to be restricted, and electric arc is strong when the ablation degree of contact still being spread than electric arc when gathering; The density of residue plasma when current over-zero is still higher in the arc gap, the phenomenon of still can restriking when recovery voltage is higher.
(3) longitudinal field contact: its magnetic line of force of longitudinal field contact structure is consistent with the arc current flow direction, the contraction that can resist electric arc, and improving electric arc is the critical value of shrinkage type by diffusion-type transition.Behind current over-zero, the diffusion of longitudinal magnetic field article on plasma body and neutral particle and decay are very unfavorable.The existence of eddy current not only reduces longitudinal magnetic field intensity between contact, and makes longitudinal magnetic field lag behind the electric current variation, still has the residue longitudinal magnetic field when making current over-zero between contact.
The utility model content
The utility model is intended to overcome the weak point of prior art and provides a kind of disc type gyromagnet the horizontal vacuum interrupter that blows, and it can produce the effect of longitudinal magnetic field again when transverse magnetic field is provided; Help the loss of arc energy more; Electric arc temperature drop piece, good insulation preformance, connecting-disconnecting function is strong; Convenient for installation and maintenance, operational reliability is high.
For solving the problems of the technologies described above, the utility model is to realize like this.
The horizontal vacuum interrupter that blows of disc type gyromagnet is at the bottom of it comprises conducting rod, contact cup, iron core and contact cup; At the bottom of the said contact cup and contact cup and conducting rod fixedly connect successively; Equal portions have circulating tanks on said contact cup; The drift angle of said circulating tanks and conducting rod longitudinal axis is 15～35 °; Said iron core is inserted in the contact cup; Equal portions have slot for winding on said iron core; Said slot for winding is built-in goes into the coil winding.
As a kind of preferred version, the number of the said slot for winding of the utility model is 12～30.
As another kind of preferred version, the groove width of the said slot for winding of the utility model is 2.5～3mm.
Further, the said coil windings of the utility model radially is scattered in tray type structure radially.
Further, the end of the utility model at the bottom of said contact cup is fixed with contact blade.
The utility model is behind logical three-phase alternating current; Conduction current flows in the contact cup through conducting rod, through winding coil, in the contact cup, forms rotating magnetic field; And, in intermediate air gap, equally also produce rotating magnetic field through the isostructural contact acting in conjunction of another second phase.Drive arc energy high speed rotating between dynamic/static contact, the rapid release energy, thus reduce the arcing time, prolong switch life.
The novel contact configurations that the utility model adopted makes the drive of the indoor arc energy of vacuum extinction through rotating magnetic field, becomes vortical by traditional axial flow and flows, and the transverse magnetic field structure of contact terminal is the helicla flute that utilizes on the contact face; Make the electric current of flowing through produce the transverse magnetic field vertical with the arc column direction; Transverse magnetic field produces tangential force to vacuum arc, makes electric arc make high speed rotary motion in contact surface, and its speed can reach 50m/s to 120m/s; Reducing fully constricted vacuum arc ablates to the part of contact; Arc energy is evenly distributed at electrode surface, reduce contact surface melting zone thickness, avoid local overheating.Arc energy is taken away in the radially exchange of gas generation kinetic energy fast in motion process, makes arc extinction.The utility model structure of contact terminal can effectively reduce arc temperature, quickens arc energy and discharges, and reduces contact ablation degree, and the protection structure of contact terminal improves the vacuum circuit-breaker connecting-disconnecting function.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the utility model overall structure sketch map.
Fig. 2 is the utility model iron core fluting sketch map.
Fig. 3 is the utility model coil windings sketch map.
Among the figure: 1, conducting rod; 2, at the bottom of the contact cup; 3, contact cup; 4, electric arc; 5, contact blade; 6, slot for winding; 7, iron core; 8, coil windings.
Embodiment
As shown in the figure, the horizontal vacuum interrupter that blows of disc type gyromagnet, it comprises at the bottom of conducting rod 1, the contact cup 2, iron core 7 and contact cup 3; At the bottom of the said contact cup 2 and contact cup 3 fixedly connect successively with conducting rod 1; Equal portions have circulating tanks on said contact cup 3; The drift angle of said circulating tanks and conducting rod 1 longitudinal axis is 30 °; Said iron core 7 is inserted in the contact cup 3; Equal portions have slot for winding 6 on said iron core 7; Said slot for winding 6 is built-in goes into coil winding 8.
The number of the said slot for winding 6 of the utility model is 12～30.The groove width of the said slot for winding 6 of the utility model is 2.5～3mm.The said coil windings 8 of the utility model radially is scattered in tray type structure radially.Be the coil windings 8 in the protection contact, the utility model end of 2 at the bottom of said contact cup is fixed with contact blade 5.
The horizontal structure of contact terminal that blows of the utility model vacuum circuit-breaker rotation through in the contact cup, placing the fluting iron core, can be equal to the armature with motor with the contact cup, and the active conductor of armature winding radially is scattered in tray type structure radially in the space.Coil windings adopts the copper coin spurt to weld then to make and forms.
The horizontal vacuum interrupter that blows of the utility model disc type gyromagnet forms transverse magnetic field through the grooved on the contact cup, because the effect of iron core winding will produce rotating magnetic field again, realizes gyromagnet, horizontal magnetic acting in conjunction simultaneously.
Referring to shown in Figure 1, the disc type gyromagnet is horizontal to blow that vacuum interrupter comprises at the bottom of conducting rod 1, the contact cup 2, contact cup (armature) 3, contact blade 5.Referring to shown in Figure 2, the utility model is placed every at a distance from 30 ° of iron cores 7 of opening a groove 6 in contact cup (armature) 3, and groove width is 2.5mm.
Referring to shown in Figure 3, the coil windings 8 of the utility model adopts the copper coin spurt to weld then to make and forms, and radially is scattered in tray type structure radially.
The utility model all adopts this structure to dynamic and static contact.In interrupting process, arc zone will appear between dynamic and static, through the effect of three-phase alternating current; Under the effect of dynamic and static contact coil windings, in contact surface rotating magnetic field will appear, because vacuum arc is to be made up of metallic plasma; Effect through electric arc; Arc zone between dynamic and static contact also will produce strong rotating magnetic field, through the forceful action of rotating magnetic field, take away arc energy fast.Simultaneously, because the contact cup is under the vertical transverse magnetic field effect of arc column direction, transverse magnetic field produces tangential force to vacuum arc; Make electric arc make high speed rotary motion in contact surface; Its speed can reach 50m/s to 120m/s, reduces fully constricted vacuum arc and is ablated in the part of contact, and arc energy is evenly distributed at electrode surface; Reduce contact surface melting zone thickness, avoid local overheating.Arc energy is taken away in the radially exchange of gas generation kinetic energy fast in motion process, makes arc extinction.Make arc extinction, effectively reduce arc temperature, quicken arc energy and discharge, reduce contact ablation degree, the protection structure of contact terminal improves the vacuum circuit-breaker connecting-disconnecting function.
The utility model can satisfy the requirement of cut-offfing under the special operation condition, the utlity model has very strong capacity current connecting-disconnecting function simultaneously, and through l-G simulation test research, can improve product reliability, safe operation.
The preferred embodiment that the above is merely the utility model is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (5)
1. the horizontal vacuum interrupter that blows of disc type gyromagnet is characterized in that, comprises (2) at the bottom of conducting rod (1), the contact cup, iron core (7) and contact cup (3); (2) and contact cup (3) fixedly connect with conducting rod (1) successively at the bottom of the said contact cup; Go up equal portions at said contact cup (3) and have circulating tanks; The drift angle of said circulating tanks and conducting rod (1) longitudinal axis is 15～35 °; Said iron core (7) is inserted in the contact cup (3); Go up equal portions at said iron core (7) and have slot for winding (6); Said slot for winding (6) is built-in goes into coil winding (8).
2. the horizontal vacuum interrupter that blows of disc type gyromagnet according to claim 1 is characterized in that: the number of said slot for winding (6) is 12～30.
3. the horizontal vacuum interrupter that blows of disc type gyromagnet according to claim 2 is characterized in that: the groove width of said slot for winding (6) is 2.5～3mm.
4. the horizontal vacuum interrupter that blows of disc type gyromagnet according to claim 3 is characterized in that: said coil windings (8) radially is scattered in tray type structure radially.
5. the horizontal vacuum interrupter that blows of disc type gyromagnet according to claim 4 is characterized in that: the end of (2) is fixed with contact blade (5) at the bottom of said contact cup.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205116701U CN202332705U (en) | 2011-12-09 | 2011-12-09 | Disc type gyromagnetic cross-blast vacuum interrupter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205116701U CN202332705U (en) | 2011-12-09 | 2011-12-09 | Disc type gyromagnetic cross-blast vacuum interrupter |
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| Publication Number | Publication Date |
|---|---|
| CN202332705U true CN202332705U (en) | 2012-07-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205116701U Expired - Fee Related CN202332705U (en) | 2011-12-09 | 2011-12-09 | Disc type gyromagnetic cross-blast vacuum interrupter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332705U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522258A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type gyromagnetic transverse blowing vacuum arc extinguish chamber |
-
2011
- 2011-12-09 CN CN2011205116701U patent/CN202332705U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522258A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type gyromagnetic transverse blowing vacuum arc extinguish chamber |
| CN102522258B (en) * | 2011-12-09 | 2015-07-15 | 沈阳工业大学 | Disc-type gyromagnetic transverse blowing vacuum arc extinguish chamber |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120711 Termination date: 20151209 |
|
| EXPY | Termination of patent right or utility model |