CN110098083A - A kind of three station vacuum switches - Google Patents
A kind of three station vacuum switches Download PDFInfo
- Publication number
- CN110098083A CN110098083A CN201910475973.3A CN201910475973A CN110098083A CN 110098083 A CN110098083 A CN 110098083A CN 201910475973 A CN201910475973 A CN 201910475973A CN 110098083 A CN110098083 A CN 110098083A
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- Prior art keywords
- magnetic
- moving
- contact
- static contact
- insulation crust
- Prior art date
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- 230000003068 static effect Effects 0.000 claims abstract description 59
- 238000009413 insulation Methods 0.000 claims abstract description 35
- 230000000903 blocking effect Effects 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 6
- 238000005192 partition Methods 0.000 claims description 5
- 230000008033 biological extinction Effects 0.000 claims 1
- 239000000306 component Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 208000021760 high fever Diseases 0.000 description 2
- 241000208340 Araliaceae Species 0.000 description 1
- 235000005035 Panax pseudoginseng ssp. pseudoginseng Nutrition 0.000 description 1
- 235000003140 Panax quinquefolius Nutrition 0.000 description 1
- 238000009954 braiding Methods 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000005347 demagnetization Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 235000008434 ginseng Nutrition 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 230000002452 interceptive effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000036632 reaction speed Effects 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The present invention relates to a kind of three station vacuum switches, including vacuum interrupter and magnetic control operating mechanism, the vacuum interrupter includes insulation crust and the static side conductive column being located in insulation crust, a static contact, two moved end conductive columns, two moving contacts and a shielding case, and the shielding case is set to the static contact side；The magnetic control operating mechanism includes controller and two magnetic control units, each magnetic control unit all includes the quiet part of a magnetic and a magnetic moving part, the quiet part of the magnetic and magnetic moving part are arranged in the insulation crust, and the magnetic moving part is drivingly connected with a moving contact respectively, suction or repulsion are generated to control the quiet part of the magnetic to magnetic moving part, it closes or divides so that two moving contacts are realized with static contact respectively, the three stations vacuum switch eliminates delicate bellows, to solve the problems, such as existing vacuum interrupter because various caused by bellows.
Description
Technical field
The present invention relates to vacuum switch fields, are specifically related to a kind of three station vacuum switches of magnetic drive.
Background technique
Vacuum switch is a kind of for controlling and protecting the electrical equipment of electric system, it passes through control vacuum interrupter
The open and close of circuital current is realized in the closures of two electrode contacts in (also known as vacuum switch tube), separation, thus
Achieve the purpose that control electric system.Vacuum interrupter is the core component of vacuum switch, it is by being sealed in vacuum tank
In contact control, extinguish the device of electric arc.
In existing vacuum interrupter, bellows is indispensable element, not only can guarantee the sealing of arc-chutes, but also
The relative motion of dynamic and static contact can be realized by it, bellows is the motion seal part for being welded on moved end cover board, and bellows exists
The movement that recovery is compressed or extended when switching on and off carries out reciprocal mechanical movement, therefore, vacuum switch in arc-chutes
Splitting or integrating each time, all make the axially retractable generation mechanically deform of bellows, acutely, the mechanically deform of high frequency is easy to make ripple
Pipe is tired and is damaged.And with using the time elongated and number of operations increase, bellows can cause elasticity to be deteriorated or break because of fatigue
It splits, causes vacuum interrupter air inlet, vacuum interrupter insulation performance is caused not enough to puncture and even explode.
In addition, the driving force of existing vacuum switch is applied by vacuum interrupter external agency, outside this
The power that mechanism applies also needs the powerful resistance for overcoming bellows compression to generate, so that the conjunction point of vacuum interrupter needs powerful energy
Source, thus external agency is bulky, causes entire small product size huge.
Summary of the invention
The present invention is intended to provide a kind of three station vacuum switches, the three stations vacuum switch is by being arranged in vacuum interrupter
Interior magnetic force mechanism drives the dynamic and static contact to work, and delicate bellows is eliminated, to solve existing vacuum interrupter because of wave
Various problems caused by line pipe.
Concrete scheme is as follows:
A kind of three station vacuum switches, including vacuum interrupter and magnetic control operating mechanism, the vacuum interrupter include exhausted
Edge shell and the static side conductive column being located in insulation crust, a static contact, two moved end conductive columns, two moving contacts and a screen
Cover is covered, one end of the static side conductive column is electrically connected with the static contact, and the other end is exposed to the insulation crust, and described two is dynamic
One end of end conductive column is electrically connected with a moving contact respectively, and the other end is exposed to the insulation crust, and the shielding case is set to institute
State static contact side；The magnetic control operating mechanism includes controller and two magnetic control units, and each magnetic control unit all includes a magnetic
Quiet part and a magnetic moving part, the quiet part of the magnetic and magnetic moving part are arranged in the insulation crust, and the magnetic moving part is respectively with one
Moving contact is drivingly connected, and the controller is located at outside the insulation crust, and is electrically connected with the quiet part of the magnetic of two magnetic control units,
Suction or repulsion are generated to control the quiet part of the magnetic to magnetic moving part, to drive corresponding moving contact can be towards or away from
The static contact movement, closes or divides so that two moving contacts are realized with static contact respectively.
Further, the quiet part of the magnetic is electrical permanent-magnet, and the magnetic moving part is permanent magnet, and the quiet part of magnetic can be to described
Magnetic moving part generates suction and repulsion, to drive the moving contact that can move towards or away from the static contact, to realize dynamic touching
Head static contact between conjunction or point.
Further, further include a connecting rod, one end of the connecting rod is connect with the moving contact, the other end with it is described
The connection of magnetic moving part.
Further, it is also fixedly installed with a fixing piece on the one end of the moving contact far from the static contact, this is fixed
The recessed portion that is arranged with an open end towards the moving contact direction on part and along the connecting rod axis direction with it is described
The through-hole of recessed portion connection, the middle part of the connecting rod have the blocking portion for protruding from its outer peripheral surface, one end of the connecting rod
It is fixedly connected across the through-hole with the magnetic moving part, and the blocking portion is limited in the recessed portion, the connecting rod
The other end is located in the recessed portion, and is arranged with a snubber elastomeric part.
Further, recessed with being arranged with the connecting rod face on the end face of the fixed fixing piece of the moving contact
Chamber, and the internal diameter of the cavity is greater than the outer diameter of the connecting rod.
Further, the inner wall clearance fit of the outer peripheral surface of the blocking portion and the recessed portion is arranged.
Further, an at least partition is additionally provided in the insulation crust, the partition will be in the insulation crust
Space is separated out the first accommodating space and at least one second accommodating space, and the moving contact, static contact are located at first accommodating
In sky, the quiet part of magnetic and the magnetic moving part are located in second accommodating space.
Further, two magnetic control units of the magnetic control operating mechanism are arranged side by side on the same side of static contact.
Further, two magnetic control units of the magnetic control operating mechanism are respectively arranged on the opposite two sides of static contact.
Further, it is realized and is electrically connected by connecting wire between one end and moving contact of the moved end conductive column, the company
Connecing conducting wire has the surplus moved with the moving contact.
Three stations vacuum switch provided by the invention has the advantage that provided by the invention three compared with prior art
Station vacuum switch realizes the splitting or integrating between moving contact and static contact with magnetic control operating mechanism, and magnetic control operating mechanism is
Be set up directly in the insulation crust of vacuum interrupter, guarantee without the use of bellows vacuum interrupter sealing and it is dynamic,
Splitting or integrating between static contact, therefore there is no existing vacuum interrupters because of various defects caused by bellows.
In addition, when carrying out splitting or integrating lock, magnetic control operating mechanism only needs relatively much smaller due to eliminating bellows
Power the splitting or integrating between dynamic and static contact can be realized, can directly be realized by magnetic control operating mechanism between dynamic and static contact
Splitting or integrating, the huge operating mechanism of existing vacuum switch is omitted, the volume of the vacuum switch can be reduced and reduce its at
This.
Detailed description of the invention
Fig. 1 shows a kind of schematic diagram of three station vacuum switches.
Fig. 2 shows moving contact and the schematic diagrames of connecting rod.
Fig. 3 shows the schematic diagram of another three station vacuum switches.
Specific embodiment
To further illustrate that each embodiment, the present invention are provided with attached drawing.These attached drawings are that the invention discloses one of content
Point, mainly to illustrate embodiment, and the associated description of specification can be cooperated to explain the operation principles of embodiment.Cooperation ginseng
These contents are examined, those of ordinary skill in the art will be understood that other possible embodiments and advantages of the present invention.In figure
Component be not necessarily to scale, and similar component symbol is conventionally used to indicate similar component.
Now in conjunction with the drawings and specific embodiments, the present invention is further described.
As shown in Figure 1, the present invention provides a kind of three station vacuum switches comprising vacuum interrupter and magnetic control operation
Mechanism.Wherein, the vacuum interrupter includes insulation crust 10 and the static side conductive column 11, the stationary contact that are located in insulation crust
First 12, two moved end conductive columns 13, two moving contacts 14 and shielding case 15.Insulation crust 10 is usually ceramic shell, but is not limited
In this, insulation crust made of the other materials of existing vacuum interrupter can also be applied to this, the space in insulation crust 10
The vacuum environment for meeting vacuum interrupter requirement is formed by processing.
One end of static side conductive column 11 is electrically connected with static contact 12, and the other end is exposed to the insulation crust 10, and moved end is led
One end of electric column 13 and moving contact 14 are electrically connected, and the other end is exposed to the insulation crust 10, is exposed to outside insulation crust 10
Static side conductive column 11 and moved end conductive column 13 be used to be attached with the cable of external power system.Shielding case 15 is located at stationary contact
Around first 12, to realize its shielding action.
Magnetic control operating mechanism includes controller 20 and two magnetic control units 21, and each magnetic control unit 21 all includes the quiet part of a magnetic
210 and a magnetic moving part 212.Wherein, the quiet part 210 of magnetic and magnetic moving part 212 are arranged in the insulation crust 10, two magnetic control units
21 magnetic moving part 212 is drivingly connected with a moving contact 14 respectively.Controller 20 is located at outside the insulation crust 10, and with two magnetic
The quiet part 210 of magnetic of control unit 21 is electrically connected, and suction or repulsion is generated to control the quiet part 210 of magnetic to magnetic moving part 212, with driving
Corresponding moving contact 14 can be moved towards or away from static contact 12, so that two moving contacts 14 are realized with static contact 12 respectively
It closes or divides, so that the open and close of respective circuital current is realized, so that reach control quarter-phase circuit controls purpose respectively.
With reference to Fig. 1, since the quiet part 210 of magnetic and magnetic moving part 212 of driving moving contact 14 are respectively positioned on inside insulation crust 10, because
This need to consider the whole vacuum leakproofness of insulation crust 10, need to consider that moving contact connects without such as existing vacuum interrupter
Movable sealing performance between extension bar and insulation crust, thus vacuum interrupter provided by the present embodiment is relative to existing vacuum
Arc-chutes can have higher vacuum degree.And the reciprocating motion of moving contact 14 is realized by magnetic control operating mechanism, is not needed
Bellows provides restoring force, eliminates easy failure, service life short bellows, can extend vacuum interrupter service life and
Reduce accident rate.
It needs it is clear that magnetic control operating mechanism can be the mechanism such as similar electromagnet, such as the quiet part 210 of magnetic and magnetic moving part 212
It is electromagnet or one is hard magnetic body, another is electromagnet, and only need to can be realized the quiet part 210 of magnetic can to magnetic moving part 212
Repulsion and suction are generated, and the repulsion of its generation and suction need to meet: when the quiet part 210 of magnetic generates reprimand to magnetic moving part 212
When power, moving contact 14 connected to it can be in contact with static contact 12, to realize the closure of circuit；And when the quiet part 210 of magnetic is right
When magnetic moving part 212 generates suction, moving contact 14 connected to it can be separated with static contact 12, to realize the disconnection of circuit.And
Controller 20 controls the quiet part 210 of magnetic and generates suction or repulsion to magnetic moving part 212 as the prior art, therefore herein without superfluous
It states.
In the present embodiment, it is preferred that the quiet part 210 of above-mentioned magnetic is electrical permanent-magnet (Electro Permanent
Magnet-EPM), magnetic moving part 212 is permanent magnet, since electromagnet can lose in the case where magnetic control operating mechanism accident power-off
Its magnetic force, and magnetic moving part 212 is in the case where the quiet part 210 of magnetic loses magnetic force, it may be due to leading to moving contact under gravity
14 and static contact 12 be in contact, lead to the closure of circuital current, this may result in danger.Therefore the quiet part 210 of magnetic is preferably electricity
Permanent magnet, magnetic moving part 212 are preferably permanent magnet, in the event of a power failure, the magnetic pole of the hard magnetic body in the quiet part 210 of magnetic and conduct
The magnetic pole of the permanent magnet forward surface of magnetic moving part 212 is opposite, therefore still can generate suction to the magnetic moving part 212,
The case where magnetic control operating mechanism accident power-off, guarantees the safety of the vacuum switch.And the case where needing to realize circuital current closure
Under, the electrical permanent-magnet as the quiet part 210 of magnetic changes under the action of electric current towards the magnetic pole on 212 face of magnetic moving part, to described
Magnetic moving part generates repulsion, to drive the moving contact 14 that can move towards the static contact 12, to realize moving contact 14 and quiet
It is closed between contact 12.
And relative to electromagnet, electrical permanent-magnet has a better reaction speed, thus some needs carry out frequently into
Under the application of row folding, electrical permanent-magnet also has more advantage compared with electromagnet.
With reference to Fig. 1 and Fig. 2, in the present embodiment, preferably, further including a connecting rod 16, one end of the connecting rod 16
It is connect with the moving contact 14, the other end is connect with the magnetic moving part 212, to increase at magnetic moving part 212 and dynamic and static contact closure
The distance between.Since high fever in short-term can be generated during dynamic and static contact closure, on the contact surface of dynamic and static contact, because
This high temperature for a short time influence magnetic moving part 212 that increases the distance between magnetic moving part 212 and 12 contacting surface of static contact and can prevent is led
Cause its demagnetization.
Preferably, with reference to Fig. 1 and Fig. 2, the moving contact 14 is also fixedly installed on one end far from the static contact 12
One fixing piece 17, the recessed portion 170 being arranged with an open end towards 14 direction of moving contact on the fixing piece 17 and edge
The through-hole 172 that 16 axis direction of connecting rod is connected to the recessed portion 170, the middle part of the connecting rod 16, which has, to be protruded from
The blocking portion 160 of its outer peripheral surface, one end of the connecting rod 16 pass through the through-hole 172 and are fixedly connected with the magnetic moving part 212,
And the blocking portion 160 is limited in the recessed portion 170, the other end of the connecting rod 16 is located in the recessed portion 170,
And it is arranged with a snubber elastomeric part 18, the snubber elastomeric part 18 is spring in the present embodiment.Due to connecting rod 16 one end with
Indirect between the magnetic moving part 212 to be fixedly connected, during dynamic and static contact closure, snubber elastomeric part 18 can
Energy-absorbing and reduce bounce time.
More optimizedly, with reference to Fig. 2, have on the end face of the fixed fixing piece 17 of the moving contact 14 and the connecting rod
The cavity 140 of 16 faces setting, and the internal diameter of the cavity 140 is greater than the outer diameter of the connecting rod.In the mistake of dynamic and static contact closure
A part of Cheng Zhong, 16 end of connecting rod can extend into a cavity 140, so that snubber elastomeric part 18 is made with better energy-absorbing
With, and then further decrease bounce time.
Another to be preferably, with reference to Fig. 2, the outer peripheral surface of the blocking portion 160 and the inner wall gap of the recessed portion 170 are matched
Setting is closed, during dynamic and static contact closure, the inner wall of recessed portion 170 can play the role of guiding, to guarantee to connect
Extension bar 16 is moved along its axis direction.
In the present embodiment, another preferably, being additionally provided with an at least partition in insulation crust 10 with reference to Fig. 1 and Fig. 3
19, which is separated out the first accommodating space 100 and the second accommodating space 102 for the space in the insulation crust 10.Magnetic
Two magnetic control units 21 of controlling operating mechanism can be as shown in Figure 1, is respectively arranged on the opposite two sides of static contact 12, or
Person is as shown in Figure 3, is arranged side by side on the same side of static contact 12.Wherein preferably it is as shown in Figure 1 be respectively arranged at it is quiet
Arrangement mode on the opposite two sides of contact 12, such mode can be to avoid interfering with each other between two magnetic control units 21.
With reference to Fig. 1 and Fig. 3, moving contact 14, static contact 12 are respectively positioned in the first accommodating space 100, and the quiet part 210 of magnetic and magnetic are dynamic
Part 212 is located in the second accommodating space 102, and moving contact 14, static contact 12 and the quiet part 210 of magnetic and magnetic moving part 212 are separated, with
The high fever generated when the contact of dynamic and static contact in short-term is avoided to have an impact the quiet part of magnetic 210 and magnetic moving part 212.
In the present embodiment, another preferably, passing through between one end and moving contact 14 of moved end conductive column 13 with reference to Fig. 1
Connecting wire 130 realizes electrical connection, which has the surplus moved with moving contact 14, in order to moved end conductive column
Electrical connection between 13 and moving contact 14.More optimizedly, connecting wire 130 is the linear conducting wire of braiding, can be with moving contact
14 move and extend or shrink and be hardly damaged.
Although specifically showing and describing the present invention in conjunction with preferred embodiment, those skilled in the art should be bright
It is white, it is not departing from the spirit and scope of the present invention defined by the appended claims, it in the form and details can be right
The present invention makes a variety of changes, and is protection scope of the present invention.
Claims (10)
1. a kind of three station vacuum switches, it is characterised in that: including vacuum interrupter and magnetic control operating mechanism, the vacuum extinction
Room includes insulation crust and the static side conductive column being located in insulation crust, a static contact, two moved end conductive columns, two dynamic touchings
Head and a shielding case, one end of the static side conductive column are electrically connected with the static contact, and the other end is exposed to the insulation crust,
One end of two moved end conductive column is electrically connected with a moving contact respectively, and the other end is exposed to the insulation crust, the shielding
Cover at the side of the static contact；The magnetic control operating mechanism includes controller and two magnetic control units, each magnetic control unit
It all include the quiet part of a magnetic and a magnetic moving part, the quiet part of the magnetic and magnetic moving part are arranged in the insulation crust, and the magnetic is dynamic
Part is drivingly connected with a moving contact respectively, and the controller is located at outside the insulation crust, and quiet with the magnetic of two magnetic control units
Part is electrically connected, and suction or repulsion is generated to control the quiet part of the magnetic to magnetic moving part, to drive corresponding moving contact energy
It is enough to be moved towards or away from the static contact, it closes or divides so that two moving contacts are realized with static contact respectively.
2. three stations vacuum switch according to claim 1, it is characterised in that: the quiet part of magnetic is electrical permanent-magnet, described
Magnetic moving part is permanent magnet, and the quiet part of magnetic can generate suction and repulsion to the magnetic moving part, to drive the moving contact can
It is moved towards or away from the static contact, to realize the conjunction between moving contact and static contact or divide.
3. three stations vacuum switch according to claim 2, it is characterised in that: further include a connecting rod, the connecting rod
One end connect with the moving contact, the other end is connect with the magnetic moving part.
4. three stations vacuum switch according to claim 3, it is characterised in that: the moving contact is far from the static contact
A fixing piece is also fixedly installed on one end, the recess being arranged with an open end towards the moving contact direction on the fixing piece
Portion and the through-hole being connected to along the connecting rod axis direction with the recessed portion, the middle part of the connecting rod, which has, protrudes from it
The blocking portion of outer peripheral surface, one end of the connecting rod passes through the through-hole and is fixedly connected with the magnetic moving part, and the blocking portion
It is limited in the recessed portion, the other end of the connecting rod is located in the recessed portion, and is arranged with a snubber elastomeric part.
5. three stations vacuum switch according to claim 4, it is characterised in that: the fixed fixing piece of the moving contact
There is the cavity being arranged with the connecting rod face, and the internal diameter of the cavity is greater than the outer diameter of the connecting rod on end face.
6. three stations vacuum switch according to claim 4, it is characterised in that: the outer peripheral surface of the blocking portion with it is described recessed
The inner wall clearance fit of concave portion is arranged.
7. three stations vacuum switch according to claim 1, it is characterised in that: be additionally provided at least in the insulation crust
Space in the insulation crust is separated out the first accommodating space and at least one second accommodating space by one partition, the partition,
The moving contact, static contact are located in the first accommodating sky, and the quiet part of magnetic and the magnetic moving part are located at second accommodating
In space.
8. three stations vacuum switch according to claim 1, it is characterised in that: two magnetic control lists of the magnetic control operating mechanism
Member is arranged side by side on the same side of static contact.
9. three stations vacuum switch according to claim 1, it is characterised in that: two magnetic control lists of the magnetic control operating mechanism
Member is respectively arranged on the opposite two sides of static contact.
10. three stations vacuum switch according to claim 1, it is characterised in that: one end of the moved end conductive column and dynamic
It is realized and is electrically connected by connecting wire between contact, which has the surplus moved with the moving contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475973.3A CN110098083A (en) | 2019-06-03 | 2019-06-03 | A kind of three station vacuum switches |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910475973.3A CN110098083A (en) | 2019-06-03 | 2019-06-03 | A kind of three station vacuum switches |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110098083A true CN110098083A (en) | 2019-08-06 |
Family
ID=67450092
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910475973.3A Pending CN110098083A (en) | 2019-06-03 | 2019-06-03 | A kind of three station vacuum switches |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110098083A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127084A1 (en) * | 2012-03-02 | 2013-09-06 | 西安交通大学 | Vacuum arc-extinguishing chamber with fixed fracture |
| CN109830401A (en) * | 2019-04-04 | 2019-05-31 | 岳盛仙 | A kind of vacuum switch |
| CN209658077U (en) * | 2019-06-03 | 2019-11-19 | 岳盛仙 | A kind of three station vacuum switches |
-
2019
- 2019-06-03 CN CN201910475973.3A patent/CN110098083A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2013127084A1 (en) * | 2012-03-02 | 2013-09-06 | 西安交通大学 | Vacuum arc-extinguishing chamber with fixed fracture |
| CN109830401A (en) * | 2019-04-04 | 2019-05-31 | 岳盛仙 | A kind of vacuum switch |
| CN209658077U (en) * | 2019-06-03 | 2019-11-19 | 岳盛仙 | A kind of three station vacuum switches |
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