CN107633978A - A kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact - Google Patents
A kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact Download PDFInfo
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- CN107633978A CN107633978A CN201711158166.6A CN201711158166A CN107633978A CN 107633978 A CN107633978 A CN 107633978A CN 201711158166 A CN201711158166 A CN 201711158166A CN 107633978 A CN107633978 A CN 107633978A
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- cup
- contact
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- magnetic field
- moving
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The invention discloses a kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact, belongs to technical field of electric appliances, circumferentially arranged with spring-like helical cutting control electric current path to produce longitudinal magnetic field wherein on static contact cup and moving contact cup；The helical cutting hand of spiral one on two contact cups, which is shown, produces longitudinal magnetic field in the same direction.Non-radial straight trough is provided with dynamic/static contact piece and suppresses vortes interference.The present invention is advantageous to reduce contact quality, increases longitudinal magnetic field intensity, strengthens effective control to electric arc, increase the connecting-disconnecting function of vacuum interrupter.
Description
Technical field
The invention belongs to vacuum circuit breaker technical field, and in particular to a kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact.
Background technology
In power system, high-tension switch gear plays control and protective effect.Primary cut-out is mostly important electrically to set
It is standby, it is mainly used in closing, cut-offs circuit.In recent years, as the fast development of power industry, voltage class and capacity increasingly carry
Rise, high-performance, the power demand of low stain provide more wide research and development and application space for the development of vacuum circuit breaker.
The structure of contact terminal being widely used at present mainly has horizontal magnetic contact to touch first two with vertical magnetic.Wherein, horizontal magnetic contact is profit
With contact, this body structure produces transverse magnetic field, and transverse magnetic field and arc current interact and caused Lorentz force makes electric arc edge
Circumferencial direction moves, acceleration energy loss, to extinguish electric arc.But transverse magnetic field can elongate camber when moving, and make electricity
Arc voltage and arc energy quantitative change are big, cause connecting-disconnecting function to be restricted.Vertical magnetic contact is the magnetic line of force and electricity using longitudinal magnetic field
Arc current flow direction is consistent, resists the contraction of electric arc, improves critical value of the electric arc by diffusion-type transition for shrinkage type.
The content of the invention
The purpose of this patent is to provide a kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact, can not increase contact volume and matter
On the premise of amount, higher magnetic field intensity is obtained to improve connecting-disconnecting function of the structure of contact terminal in vacuum circuit breaker.
The present invention is realized according to following technical scheme.
A kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact, including a kind of contact assembly, including moving contact and static contact, moving contact
Provided with moving contact cup and moving contact piece, moving contact cup is fixedly connected with moving conductive rod, and moving contact cup end is fixed with moving contact piece
Connection, static contact is provided with static contact cup and static contact piece, and static contact cup is fixedly connected with static conductive rod, static contact cup end with it is quiet
Contact blade is fixedly connected, and being circumferentially with the spring-like helical cutting of at least one circle along it on moving contact cup is divided into moving contact cup
It is spiral-shaped, on static contact cup along its be circumferentially with least one circle helical cutting by moving contact cup split it is helically shaped.
The moving contact and static contact include contact cup and the contact blade located at contact cup end, and moving contact grooving includes
Moving contact cup helical cutting part on moving contact cup and the moving contact contact blade slot portion on moving contact piece, it is quiet
Contact grooving includes the static contact helical cutting part on static contact cup and the static contact contact blade on static contact piece
Slot portion.
Described moving contact cup helical cutting using clockwise or counterclockwise, helical cutting top and end wire length with
Contact cup is contour, and static contact cup helical cutting top and end wire length and static contact cup are contour, static contact cup helical cutting
The hand of spiral is consistent with the moving contact cup helical cutting hand of spiral.
Non-radial straight trough is provided with described moving contact piece and static contact piece, path is flowed through to reduce whirlpool for increasing vortex
The influence of stream, so as to reduce remnant field.
Compared with prior art, the present invention has the advantage that：
1st, the vacuum arc-extinguishing chamber contact control arc ability in the present invention is stronger.During vacuum interrupter drop-out current, provided with helical cutting
Vertical magnetic contact caused by longitudinal magnetic field it is stronger, can more effectively regulate and control arc characteristic.
2nd, the vacuum arc-extinguishing chamber contact structure in the present invention is more simpler than coil type contact and the vertical magnetic structure of contact terminal of cup-shaped.
Vacuum arc-extinguishing chamber contact in the present invention only needs to drive a helical cutting on the contact cup of moving contact and static contact respectively, and not
Need spoke connecting lever to be connected with coiled contact, reduce manufacture difficulty.
3rd, the vacuum arc-extinguishing chamber contact in the present invention can be revolved according to the difference of required magnetic field intensity by changing helical cutting
Gyration can change the intensity of longitudinal magnetic field with spiral number of turns.
Brief description of the drawings
Fig. 1 is the front view of the present invention；
Fig. 2 is the static contact chip architecture schematic diagram of the present invention；
Fig. 3 is the moving contact chip architecture schematic diagram of the present invention；
Fig. 4 is the static contact cup helical cutting structural representation of the present invention；
Fig. 5 is the moving contact cup helical cutting structural representation of the present invention.
Wherein, 1. static conductive rod；2. static contact cup；3. static contact cup helical cutting；4. static contact piece；5. moving contact piece；
6. moving contact cup；7. moving contact cup helical cutting；8. moving conductive rod；9. contact blade straight trough.
Embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be described in further detail.
As Figure 1-5, static conductive rod 1 electrically couples with static contact cup 2 and static contact piece 4, similarly, moving conductive rod 8 with
Moving contact cup 6 and moving contact piece 5 are electrically coupled.Static conductive rod 1, static contact cup 2, static contact piece 4, moving contact piece 5, dynamic touch
Head cup 6, moving conductive rod 8 form current path when electric arc is produced between contact together with electric arc.
Embodiment one, as shown in figure 1, moving contact and static contact, which are cup-shaped, indulges magnetic contact, moving contact includes moving contact cup
With the moving contact piece located at moving contact cup end, moving contact cup edge circumferential direction is provided with a spring-like helical cutting, moving contact
Piece is provided with 6 non-radial straight troughs, and static contact includes static contact cup and the static contact piece located at static contact cup end, static contact cup edge
Circumferential direction is provided with a spring-like helical cutting, and static contact piece is provided with 6 non-radial straight troughs.
As shown in Figure 4, Figure 5, the helical cutting one end is located at contact cup opening, the other end and contact to helical cutting structure
Cup is contour, and the spiral angle of helical cutting is 20 degree, and the number of turns is 2 circles, moving contact cup helical cutting and static contact cup helical cutting
The hand of spiral is consistent, makes caused longitudinal magnetic field direction consistent, is overlapped mutually.
Coil type cup-shaped proposed by the present invention indulges magnetic contact can be by controlling the number of turns of helical cutting to be adjusted with angle
The size of longitudinal magnetic field.
The operation principle and the course of work of the present invention：
Contact of the present invention is still the principle for being flowed through contact using electric current and being produced longitudinal magnetic field.Moving conductive rod, moving contact cup are with moving
Contact blade is electrically connected, and static conductive rod, static contact cup and static contact piece are electrically connected, electric current flow through static conductive rod, static contact cup,
Static contact piece, moving contact piece, moving contact cup, moving conductive rod, a longitudinal magnetic field is formed in incision position.Magnetic is indulged with traditional cup-shaped to touch
Head compare, electric current contact cup upstream through path as coil, increase produce longitudinal magnetic field current component, produce ratio
Traditional cup-shaped indulges the stronger longitudinal magnetic field in magnetic magnetic field.
Claims (2)
1. a kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact, including static conductive rod（1）, it is characterised in that it is additionally provided with static contact cup
（2）, moving contact cup（6）；The static contact cup（2）Connect static conductive rod（1）With static contact piece（4）；The static contact piece（4）With
Moving contact piece（5）Engage；Static contact cup helical cutting（3）By static contact cup（2）Split curl；The moving contact cup
（6）Connect moving conductive rod（8）With moving contact piece（5）；Moving contact piece（5）With static contact piece（4）Engage；Moving contact cup spiral is cut
Groove（7）By moving contact cup（6）Split curl；Moving conductive rod（8）Connect moving contact cup（6）, and drive moving contact cup（6）With
Moving contact piece（5）Motion, makes moving contact piece（5）With static contact piece（4）Engagement forms port；Static contact piece（4）With moving contact
Piece（5）It is respectively formed on the contact blade straight trough for increasing its eddy current path（9）.
2. a kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact as claimed in claim 1, it is characterised in that flow through static contact cup（2）
With moving contact cup（6）Current uniform do not produce longitudinal magnetic field.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158166.6A CN107633978A (en) | 2017-11-20 | 2017-11-20 | A kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711158166.6A CN107633978A (en) | 2017-11-20 | 2017-11-20 | A kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107633978A true CN107633978A (en) | 2018-01-26 |
Family
ID=61108721
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711158166.6A Pending CN107633978A (en) | 2017-11-20 | 2017-11-20 | A kind of Axial Magnetic Field Vacuum Interrupters with Cup Type contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107633978A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447748A (en) * | 2018-03-23 | 2018-08-24 | 西安交通大学 | It is a kind of to use the vacuum interrupter for applying rotating excitation field outside and its cut-off direct methods |
| CN110942938A (en) * | 2019-12-02 | 2020-03-31 | 北京双杰电气股份有限公司 | Contact unit for DC contactor |
| CN114141576A (en) * | 2021-11-03 | 2022-03-04 | 西安交通大学 | Contact structure and vacuum arc-extinguishing chamber thereof |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372259A (en) * | 1965-05-28 | 1968-03-05 | Gen Electric | Vacuum-type electric circuit interrupter with arc-voltage limiting means |
| CN101425424A (en) * | 2008-11-03 | 2009-05-06 | 湖北汉光科技股份有限公司 | Vacuum switch tube for helical coil longitudinal magnetic field electrode |
| CN102668002A (en) * | 2009-09-29 | 2012-09-12 | 施耐德电气能源法国公司 | Winding for a contact of a medium-voltage vacuum bulb having improved arc cutoff, and related vacuum bulb and circuit breaker, such as an alternator disconnect circuit breaker |
| CN203013619U (en) * | 2012-12-26 | 2013-06-19 | 陕西宝光真空电器股份有限公司 | Cup-shaped longitudinal magnetic field electrode |
| CN205487923U (en) * | 2015-12-04 | 2016-08-17 | 天津平高智能电气有限公司 | Explosion chamber and indulge magnetism contact means thereof |
| CN105914096A (en) * | 2016-07-01 | 2016-08-31 | 天津平高智能电气有限公司 | Contact assembly for improving breaking capacity of arc extinguish chamber and arc extinguish chamber |
-
2017
- 2017-11-20 CN CN201711158166.6A patent/CN107633978A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3372259A (en) * | 1965-05-28 | 1968-03-05 | Gen Electric | Vacuum-type electric circuit interrupter with arc-voltage limiting means |
| CN101425424A (en) * | 2008-11-03 | 2009-05-06 | 湖北汉光科技股份有限公司 | Vacuum switch tube for helical coil longitudinal magnetic field electrode |
| CN102668002A (en) * | 2009-09-29 | 2012-09-12 | 施耐德电气能源法国公司 | Winding for a contact of a medium-voltage vacuum bulb having improved arc cutoff, and related vacuum bulb and circuit breaker, such as an alternator disconnect circuit breaker |
| CN203013619U (en) * | 2012-12-26 | 2013-06-19 | 陕西宝光真空电器股份有限公司 | Cup-shaped longitudinal magnetic field electrode |
| CN205487923U (en) * | 2015-12-04 | 2016-08-17 | 天津平高智能电气有限公司 | Explosion chamber and indulge magnetism contact means thereof |
| CN105914096A (en) * | 2016-07-01 | 2016-08-31 | 天津平高智能电气有限公司 | Contact assembly for improving breaking capacity of arc extinguish chamber and arc extinguish chamber |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108447748A (en) * | 2018-03-23 | 2018-08-24 | 西安交通大学 | It is a kind of to use the vacuum interrupter for applying rotating excitation field outside and its cut-off direct methods |
| CN110942938A (en) * | 2019-12-02 | 2020-03-31 | 北京双杰电气股份有限公司 | Contact unit for DC contactor |
| CN114141576A (en) * | 2021-11-03 | 2022-03-04 | 西安交通大学 | Contact structure and vacuum arc-extinguishing chamber thereof |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180126 |
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| RJ01 | Rejection of invention patent application after publication |