CN108172449A - A kind of rotary separation switch - Google Patents
A kind of rotary separation switch Download PDFInfo
- Publication number
- CN108172449A CN108172449A CN201711433701.4A CN201711433701A CN108172449A CN 108172449 A CN108172449 A CN 108172449A CN 201711433701 A CN201711433701 A CN 201711433701A CN 108172449 A CN108172449 A CN 108172449A
- Authority
- CN
- China
- Prior art keywords
- contact
- moved end
- rotary separation
- separation switch
- disconnecting switch
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
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- Fuses (AREA)
Abstract
The invention discloses a kind of rotary separation switch, it is used as moved end contact unit by the way that multipair rodlike active contact, blade contact spring are arranged on the constraint set, it is connect with insulated tension pole, conductive connecting piece and conductive connecting piece is fixedly connected with the moved end busbar, overall structure moved end component is correspondingly arranged with static side component；It is improved by the structure of blade contact spring contact, when disconnecting switch is closed a floodgate, contact is transmitted uniform and stable, reduce disconnecting switch contact resistance, contact melting welding is reduced, solves the problems, such as that galvanic circle contact fever makes contact melting welding, improves the thermal stability of disconnecting switch；It is improved by the structure of multipair rodlike active contact, improves the mechanical strength of multipair rodlike active contact and anti-fusion welding property, and then improve disconnecting switch dynamic stability, and then improve reliability and the safety of power system power supply.
Description
Technical field
The present invention relates to high-voltage switch gear technical field, more particularly to a kind of rotary separation switch.
Background technology
Disconnecting switch is a kind of indispensable common electrical equipment in electric system, it can play isolated power supply, fall
The effect of lock operation, plays power system security reliability service particularly significant.Wherein, disconnecting switch should be able to meet good object
The requirement of rationality energy, mechanical property and electrical contact performance, particularly should be able in the contact pressure when disconnecting switch is closed
It meets the requirements.
In the prior art, usually contact resistance is caused to increase since isolation switch contact pressure is uneven, causes conductive return
Road contact fever makes contact melting welding, restricts the thermal stability of disconnecting switch, and due to electric current linear shrinkage meeting during disconnecting switch contact
Electrodynamic repulsion force is generated in contact area, very big destruction is generated to disconnecting switch dynamic stability, disconnecting switch is caused to fail, directly
Influence reliability and the safety of power system power supply.
Invention content
It is an object of the invention in view of the above-mentioned problems, provide a kind of rotary separation switch, improve isolation switch contact
Pressure improves the thermal stability and dynamic stability of disconnecting switch, so as to improve the reliability of power system power supply and safety.
In order to reach object above, an embodiment of the present invention provides a kind of rotary separation switch, the rotary isolation
Switch includes static side component, moved end component,
The moved end component includes moved end contact unit, insulated tension pole, conductive connecting piece, moved end busbar, the conduction
Connection sheet is fixedly connected with the moved end busbar,
The moved end contact unit includes multipair rodlike active contact, about blade contact spring, collar, and the rodlike active is touched
Head, the blade contact spring are arranged in the about collar, and the blade contact spring is to the position of the rodlike active contact
It is defined, the about collar is fixedly connected respectively with the insulated tension pole, the conductive connecting piece；
The static side component includes being fixedly connected with the static side contact of setting and static side busbar；The static side contact with it is described
Rodlike active contact is correspondingly arranged.
Preferably, the rodlike active contact includes moved end contact and conductive rod, and the conductive rod is column structure,
It is fixedly connected with the moved end contact.
Preferably, the conductive rod is provided with heat emission hole.
Preferably, the moved end contact is nanocrystalline copper chromium alloy material.
Preferably, the blade contact spring is thermosetting resin base fibre reinforced materials.
Preferably, the quantity of the blade contact spring is one or more pieces.
Preferably, the rotary separation switch, which further includes, is flexible coupling, it is described be flexible coupling be arranged on the moved end and lead
On electricity row.
A kind of rotary separation switch provided in an embodiment of the present invention, by by multipair rodlike active contact, blade contact
Spring is arranged on the constraint set as moved end contact unit, is connect with insulated tension pole, conductive connecting piece and conductive connecting piece and institute
It states moved end busbar to be fixedly connected, overall structure moved end component is correspondingly arranged with static side component；Pass through blade contact spring contact
Structure is improved, and when disconnecting switch is closed a floodgate, contact is transmitted to uniform and stable, reduction disconnecting switch contact resistance, reduction is tactile
First melt is welded, and is solved the problems, such as that galvanic circle contact fever makes contact melting welding, is improved the thermal stability of disconnecting switch；By multipair
The structure of rodlike active contact is improved, and improves the mechanical strength of multipair rodlike active contact and anti-fusion welding property, so improve every
Pass dynamic stability is left, and then improves reliability and the safety of power system power supply.
Description of the drawings
Fig. 1 is a kind of structure diagram of rotary separation switch provided in an embodiment of the present invention；
Fig. 2 is a kind of partial structural diagram of rotary separation switch provided in an embodiment of the present invention；
Fig. 3 is a kind of partial structural diagram of rotary separation switch provided in an embodiment of the present invention；
Fig. 4 is a kind of partial structural diagram of rotary separation switch provided in an embodiment of the present invention；
Fig. 5 is a kind of partial structural diagram of rotary separation switch provided in an embodiment of the present invention；
Wherein, 1 static side contact, 2 static side busbars, 3 moved end busbars, 4 rodlike active contacts, 41 conductive rods, 42 moved ends
Contact, 43 heat emission holes, 5 about collars, 6 conductive connecting pieces, 7 insulated tension poles, 8 blade contact springs, 9 are flexible coupling.
Specific embodiment
The embodiment of the present invention is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, and is only used for explaining the present invention, and is not construed as limiting the claims.
For problems of the prior art, rotatably to keep apart as shown in Figure 1, an embodiment of the present invention provides one kind
It closes, which is characterized in that the rotary separation switch includes static side component, moved end component, and the moved end component is touched including moved end
Head unit, insulated tension pole 7, conductive connecting piece 6, moved end busbar 3, the conductive connecting piece 6 are fixed with the moved end busbar 3
Connection.
Specifically, as shown in Figure 1, insulated tension pole 7 is insulating materials, such as nylon, epoxy resin DMC, SMC；It leads moved end
Electricity row 3 is conductive excellent copper product, and position is static；Conductive connecting piece 6 is conductive excellent copper product, conductive by bolt and moved end
Row 3 fixes.
In the embodiment of the present invention, as shown in Figure 1, 2, the moved end contact unit includes multipair rodlike active contact 4, sheet
Contact spring 8, about collar 5, the rodlike active contact 4, the blade contact spring 8 are arranged in the about collar 5, described
Shape contact spring 8 is defined the position of the rodlike active contact 4, the about collar 5 respectively with the insulated tension pole 7, institute
Conductive connecting piece 6 is stated to be fixedly connected.
Specifically, rodlike active contact 4 is the conductive column of club shaped structure, as disconnecting switch moving contact, fully consider every
From switch contact self structure and problem of materials, improve the heat dissipation during electrical contact and anti-fusion welding property, so improve every
It leaves and closes rated current and dynamic, heat-stable current.
Specifically, conventional contact spring is spiral spring, and carrying pressure, impact, high temperature, fatigue capability are poor, and in contact
Contact transmits unstable, contact point discontinuity during combined floodgate, and local temperature rise is high.Piece is used in the specific embodiment of the invention
The advantages of shape contact spring 8, blade contact 8 structure type of spring is that elastic strain is big, specific strain energy is high, fatigue life is long, pressure passes
It is defeated uniform and stable so that blade contact spring 8 has the bearing capacity under long-term static load and dynamic load, has higher creep resistance and resists
Fatigue behaviour absorbs impact property and its certain heat resistance.The some shortcomings of conventional isolation switches touch spring are compensated for, are had
Contact pressure when closing a floodgate conducive to increase isolation switch contact can be conducive to reduce disconnecting switch contact resistance, reduce contact and melt
Weldering.
Further, as shown in figure 3, about collar 5 is insulating materials with insulated tension pole 7, to limit the rodlike active of constraint
Contact 4 is connect by axis pin with insulated tension pole 7 and conductive connecting piece 6.Rodlike active contact 4 is embedded on about collar 5, and by
Blade contact spring 8 limits constrained, is connected by axis pin with conductive connecting piece 6.Rodlike active contact 4 can be four pairs and also may be used
It is multipair with other.Insulated tension pole 7 moves up and down with 5 operation of moving constraint set, and then drives rodlike active contact 4, blade contact spring 8
The combined floodgate and separating brake of disconnecting switch are realized in rotation.
In the embodiment of the present invention, as shown in Figure 1, the static side component includes being fixedly connected the static side contact 1 of setting and quiet
Hold busbar 2；The static side contact 1 is correspondingly arranged with the rodlike active contact 4.Specifically, static side busbar 2 is conductive excellent
Different copper product, position are static；Static side contact 1 is conductive excellent copper product, is fixed by bolt and static side busbar 2.
Technical solution based on the embodiment of the present invention is improved by the structure of 8 contact of blade contact spring, kept apart
When closing lock, contact is transmitted to uniform and stable, reduction disconnecting switch contact resistance, reduction contact melting welding solves conduction
The problem of circuit contact fever makes contact melting welding improves the thermal stability of disconnecting switch；Pass through the knot of multipair rodlike active contact 4
Structure improves, and improves the mechanical strength of multipair rodlike active contact 4 and anti-fusion welding property, and then improve disconnecting switch dynamic stability,
And then improve reliability and the safety of power system power supply.
In the preferred embodiment of the present invention, as shown in figure 4, the rodlike active contact 4 includes moved end contact 42 and conductive rod
41, the conductive rod 41 is column structure, is fixedly connected with the moved end contact 42.The conductive rod 41 is provided with heat emission hole
43.The moved end contact 42 is nanocrystalline copper chromium alloy material.
Specifically, conductive rod 41 is provided with heat emission hole 43 using conductive excellent copper product, centre, advantageously reduces conductive temperature
It rises.The nanocrystalline copper chromium alloy material that moved end contact 42 is prepared using high-energy ball milling and hot pressed sintering, by electronic friction weldering with
Together, material takes into account excellent electric conductivity and anti-contact melting welding feature performance benefit to 41 seamless welding of conductive rod.Nanometer simultaneously
Contact material compares conventional material, and mechanical strength and hardness are high, and tensile strength increase, solder bond power and intensity are low, therefore anti-
Melting welding performance is better than normal contacts material, improves the rated current of disconnecting switch and dynamic, heat-stable current.
In the preferred embodiment of the present invention, as shown in figure 5, the blade contact spring 8 is thermosetting resin base fiber reinforcement material
Material.Such as polyester, vinylite and epoxy resin.Thermosetting resin base fibre reinforced materials has intensity height, impact resistance, resistance to
The characteristics of corrosion, has good mechanical performance and layer shear strength, relatively low cure shrinkage.
In the preferred embodiment of the present invention, as shown in figure 5, the quantity of the blade contact spring 8 is one or more pieces.Can be
A piece of or multiple big or small slices are formed by stacking, and single-sheet thickness about 1~5mm is nested in about collar 5, to limit the rodlike master of constraint
Moving contact 4.
In the preferred embodiment of the present invention, as shown in Figure 1, the rotary separation switch further includes and is flexible coupling 9, the soft company
9 are connect to be arranged on the moved end busbar 3.Specifically, it is flexible coupling 9 for conductive excellent copper product, is connected with galvanic circle, can transport
It is dynamic.
In the specific embodiment of the invention, in disconnecting switch making process, the operating mechanism action of disconnecting switch drives absolutely
Edge pull rod 7 moves up and down, and about collar 5 is moved with insulated tension pole 7, and then rodlike tactile, the blade contact spring 8 in moved end is driven to revolve
Turn.Moved end finite element rotation, which moves downward, makes disconnecting switch close a floodgate, and system circuit, which is powered, to be connected, electrical equipment work.Counter motion,
The safety of disconnecting switch separating brake, system circuit power-off isolation, guarantee maintenance or maintenance work.
By applying rotary separation switch provided in an embodiment of the present invention, when disconnecting switch is closed a floodgate, touched by sheet
Head 8 contact of spring structure and material, contact is transmitted it is uniform and stable, reduce disconnecting switch contact resistance, reduce contact melt
Weldering solves the problems, such as that galvanic circle contact fever makes contact melting welding, improves the thermal stability of disconnecting switch；By multipair rodlike
The structure and material of active contact 4 improves the mechanical strength of rodlike active contact 4 and anti-fusion welding property, improves disconnecting switch
Rated current and dynamic, heat-stable current, and then improve disconnecting switch dynamic stability, and then improve the reliable of power system power supply
Property and safety.
The structure, feature and effect of the present invention, more than institute are described in detail based on the embodiments shown in the drawings
Only presently preferred embodiments of the present invention is stated, but the present invention is not to limit practical range shown in drawing, it is every according to structure of the invention
Want made change or be revised as the equivalent embodiment of equivalent variations, when not going beyond the spirit of the description and the drawings,
It should all be within the scope of the present invention.
Claims (7)
1. a kind of rotary separation switch, which is characterized in that the rotary separation switch includes static side component, moved end component,
The moved end component includes moved end contact unit, insulated tension pole, conductive connecting piece, moved end busbar, described to be conductively connected
Piece is fixedly connected with the moved end busbar,
The moved end contact unit include multipair rodlike active contact, blade contact spring, about collar, the rodlike active contact,
The blade contact spring is arranged in the about collar, and the blade contact spring carries out the position of the rodlike active contact
It limits, the about collar is fixedly connected respectively with the insulated tension pole, the conductive connecting piece；
The static side component includes being fixedly connected with the static side contact of setting and static side busbar；The static side contact with it is described rodlike
Active contact is correspondingly arranged.
2. rotary separation switch as described in claim 1, which is characterized in that the rodlike active contact includes moved end contact
And conductive rod, the conductive rod are column structure, are fixedly connected with the moved end contact.
3. rotary separation switch as claimed in claim 2, which is characterized in that the conductive rod is provided with heat emission hole.
4. rotary separation switch as claimed in claim 2, which is characterized in that the moved end contact is nanocrystalline copper evanohm
Material.
5. rotary separation switch as described in claim 1, which is characterized in that the blade contact spring is thermosetting resin base
Fibre reinforced materials.
6. rotary separation switch as described in claim 1, which is characterized in that the quantity of the blade contact spring to be a piece of or
Multi-disc.
7. rotary separation switch as described in claim 1, which is characterized in that the rotary separation switch further includes soft company
Connect, it is described be flexible coupling be arranged on the moved end busbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433701.4A CN108172449A (en) | 2017-12-26 | 2017-12-26 | A kind of rotary separation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711433701.4A CN108172449A (en) | 2017-12-26 | 2017-12-26 | A kind of rotary separation switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108172449A true CN108172449A (en) | 2018-06-15 |
Family
ID=62521168
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711433701.4A Pending CN108172449A (en) | 2017-12-26 | 2017-12-26 | A kind of rotary separation switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108172449A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2760034A (en) * | 1953-10-28 | 1956-08-21 | Mcgraw Electric Co | High pressure contacts |
| CN201514882U (en) * | 2009-08-14 | 2010-06-23 | 中国西电电气股份有限公司 | Large current knife type high-pressure switch |
| CN202977183U (en) * | 2012-11-07 | 2013-06-05 | 江山市电器技术开发有限公司 | High-voltage grounding switch strong current static contact device |
| CN203491113U (en) * | 2013-10-15 | 2014-03-19 | 杭州电器开关有限公司 | Contact device of isolating switch |
| CN107240515A (en) * | 2016-03-28 | 2017-10-10 | 西门子公司 | Moving contact protective case and contact module and disconnecting switch with it |
-
2017
- 2017-12-26 CN CN201711433701.4A patent/CN108172449A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2760034A (en) * | 1953-10-28 | 1956-08-21 | Mcgraw Electric Co | High pressure contacts |
| CN201514882U (en) * | 2009-08-14 | 2010-06-23 | 中国西电电气股份有限公司 | Large current knife type high-pressure switch |
| CN202977183U (en) * | 2012-11-07 | 2013-06-05 | 江山市电器技术开发有限公司 | High-voltage grounding switch strong current static contact device |
| CN203491113U (en) * | 2013-10-15 | 2014-03-19 | 杭州电器开关有限公司 | Contact device of isolating switch |
| CN107240515A (en) * | 2016-03-28 | 2017-10-10 | 西门子公司 | Moving contact protective case and contact module and disconnecting switch with it |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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 | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180615 |