CN202332703U - Disc type stacked gyromagnetic vacuum interrupter - Google Patents
Disc type stacked gyromagnetic vacuum interrupter Download PDFInfo
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- CN202332703U CN202332703U CN201120511593XU CN201120511593U CN202332703U CN 202332703 U CN202332703 U CN 202332703U CN 201120511593X U CN201120511593X U CN 201120511593XU CN 201120511593 U CN201120511593 U CN 201120511593U CN 202332703 U CN202332703 U CN 202332703U
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- contact
- contact cup
- vacuum interrupter
- disc type
- gyromagnetic
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Abstract
The utility model belongs to the field of vacuum circuit breakers, and particularly relates to a disc type stacked gyromagnetic vacuum interrupter, which comprises a conducting rod (1), a contact cup bottom (2) and a contact cup (3). The contact cup bottom (2) and the contact cup (3) are fixedly matched and connected with the conducting rod (1) in turn. A core (7) is arranged in the contact cup (3), and winding slots (6) are equally reserved in the core (7). Coil windings (8) are arranged in the winding slots (6), and are radially distributed to form a disc type structure along a radial direction. A contact blade (4) is fixedly arranged at the end part of the contact cup bottom (2). More than two groups of coaxial coil windings (8) are stacked in the winding slots (6), and are sequentially staggered by a certain angle Theta. By the disc type stacked gyromagnetic vacuum interrupter, a transverse magnetic field can be provided, and a longitudinal magnetic field can also be generated, so that the dissipation of arc energy is more facilitated; and the disc type stacked gyromagnetic vacuum interrupter has the advantages of high arc cooling speed, high insulating property, high switching-on/switching-off capability, convenience for mounting and maintenance and high running reliability.
Description
Technical field
the utility model belongs to the vacuum circuit-breaker field, relates in particular to the folded formula gyromagnet vacuum interrupter of dish-type.
Background technology
in electric power system, high voltage switchgear plays control and protective effect.Primary cut-out is the most important electric equipment, is mainly used in to close to close, cut-off circuit.In recent years, along with the fast development of power industry, electric pressure and capacity promote day by day, and high-performance, oligosaprobic need for electricity are that the development of vacuum circuit-breaker provides more wide research and development and application space.
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.
The dull and stereotyped contact of
(1) 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.
Summary of the invention
the utility model is intended to overcome the weak point of prior art and provides a kind of dish-type to fold formula gyromagnet vacuum interrupter, 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 cooling 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, and the utility model is achieved in that dish-type folds formula gyromagnet vacuum interrupter, 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; Said iron core is inserted in the contact cup; Equal portions have slot for winding on said iron core; Two groups of above coaxial coil windings stack inserts in the slot for winding and the certain angle θ that staggers successively.
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.
in addition, the said angle θ of the utility model is between 5 °~15 °.
the utility model is behind logical three-phase alternating current, and conduction current flows in the contact cup, through winding coil through conducting rod; In the contact cup, form rotating magnetic field; The coil windings of formula is arranged because existence is staggered, and is also inequality at the magnetic direction that every group of coil of synchronization produces, and passes through the contact acting in conjunction of opposite side same structure; In intermediate air gap, produce the rotating magnetic field of different rotary frequency, also strengthened the intensity of rotating magnetic field simultaneously.Drive arc energy high speed rotating between dynamic/static contact, the rapid release energy, thus reduce the arcing time, prolong switch life.
novel contact configurations that the utility model adopted makes the drive of the indoor arc energy of vacuum extinction through rotating magnetic field; Becoming vortical by traditional axial flow flows; The radially exchange of gas generation kinetic energy in motion process; Take away arc energy fast, make 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
are described further the utility model below in conjunction with accompanying drawing and embodiment.
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.
Fig. 4 is the utility model coaxial coil winding sketch map.
Among
figure: 1, conducting rod; 2, at the bottom of the contact cup; 3, contact cup; 4, contact blade; 5, electric arc; 6, slot for winding; 7, iron core; 8, coil windings.
Embodiment
are as shown in the figure, and dish-type is folded formula gyromagnet vacuum interrupter, and 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; Said iron core 7 is inserted in the contact cup 3; Equal portions have slot for winding 6 on said iron core 7; Two groups of above coaxial coil windings 8 stack inserts in the slot for winding 6 and the certain angle θ that staggers successively.
2~5 groups of coaxial coil windings 8 of
the utility model stack inserts in the slot for winding 6 and the certain angle θ that staggers successively, and angle is got 10 °.
The number of
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 4.
the utility model dish-type is folded formula gyromagnet vacuum interrupter, through the fluting on the contact cup, can the contact cup be equal to the armature with motor, 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.
referring to shown in Figure 1, and the folded formula gyromagnet vacuum interrupter of dish-type comprises at the bottom of conducting rod 1, the contact cup 2, contact cup (armature) 3, contact blade 4.
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.
Referring to shown in Figure 4, the utility model overlays one group of coaxial iron core in the contact cup
, and 10 ° of the certain angles of staggering.
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, through the effect of 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; 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 above is merely the preferred embodiment of 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 (6)
1. the folded formula gyromagnet vacuum interrupter of dish-type 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; 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); Two groups of above coaxial coil windings (8) stack inserts in the slot for winding (6) and the certain angle θ that staggers successively.
2. dish-type according to claim 1 is folded formula gyromagnet vacuum interrupter, and it is characterized in that: the number of said slot for winding (6) is 12~30.
3. dish-type according to claim 2 is folded formula gyromagnet vacuum interrupter, and it is characterized in that: the groove width of said slot for winding (6) is 2.5~3mm.
4. dish-type according to claim 3 is folded formula gyromagnet vacuum interrupter, and it is characterized in that: said coil windings (8) radially is scattered in tray type structure radially.
5. dish-type according to claim 4 is folded formula gyromagnet vacuum interrupter, and it is characterized in that: the end of (2) is fixed with contact blade (4) at the bottom of said contact cup.
6. dish-type according to claim 5 is folded formula gyromagnet vacuum interrupter, and it is characterized in that: said angle θ is between 5 °~15 °.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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CN201120511593XU CN202332703U (en) | 2011-12-09 | 2011-12-09 | Disc type stacked gyromagnetic vacuum interrupter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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CN201120511593XU CN202332703U (en) | 2011-12-09 | 2011-12-09 | Disc type stacked gyromagnetic vacuum interrupter |
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CN202332703U true CN202332703U (en) | 2012-07-11 |
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Application Number | Title | Priority Date | Filing Date |
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CN201120511593XU Expired - Fee Related CN202332703U (en) | 2011-12-09 | 2011-12-09 | Disc type stacked gyromagnetic vacuum interrupter |
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CN (1) | CN202332703U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102522256A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type overlapping gyromagnetic vacuum arc extinguish chamber |
-
2011
- 2011-12-09 CN CN201120511593XU patent/CN202332703U/en not_active Expired - Fee Related
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102522256A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Disc-type overlapping gyromagnetic vacuum arc extinguish chamber |
CN102522256B (en) * | 2011-12-09 | 2015-07-15 | 沈阳工业大学 | Disc-type overlapping gyromagnetic 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 |