CN109698095A - Vacuum interrupter with flexible electrode support construction - Google Patents
Vacuum interrupter with flexible electrode support construction Download PDFInfo
- Publication number
- CN109698095A CN109698095A CN201910039160.XA CN201910039160A CN109698095A CN 109698095 A CN109698095 A CN 109698095A CN 201910039160 A CN201910039160 A CN 201910039160A CN 109698095 A CN109698095 A CN 109698095A
- Authority
- CN
- China
- Prior art keywords
- support construction
- flexible electrode
- energy
- electrode support
- contact
- 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.)
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Classifications
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- 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
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
Abstract
Vacuum interrupter disclosed by the invention with flexible electrode support construction, dynamic guide rod, moving contact and the quiet guide rod, static contact connected respectively by flexible electrode support construction, the moving contact and static contact are oppositely arranged, the flexible electrode support construction includes at least cricoid supporting element, the supporting element offers at least one energy-absorbing slot along its circumferential direction, and described energy-absorbing slot at least one end is connected with through-hole.Vacuum interrupter of the invention using flexible electrode support construction deformation occurs absorb close a floodgate generate impact kinetic energy, to reduce the reaction force between dynamic/static contact, the closing rebound for even avoiding vacuum interrupter can effectively be inhibited, meet the requirement of vacuum circuit breaker performance parameter.
Description
Technical field
The invention belongs to vacuum interrupter technical field of structures, and in particular to a kind of with the true of flexible electrode support construction
Empty arc-chutes.
Background technique
Closing rebound performance is a kind of important parameter of vacuum breaker mechanical features, and closing rebound refers to vacuum circuit breaker
When combined floodgate, since combined floodgate impact kinetic energy is larger, moving contact and static contact generate inelastic collision, are reacted and push after contact
The phenomenon that opening, then contacting but also be open not only.Single the main reason for analyzing generation spring from arc-chutes is that dynamic/static contact combined floodgate touches
When hitting, combined floodgate impact kinetic energy can not all be sponged by arc-chutes, and remaining energy makes moving contact be rebounded and be generated.Bullet
The stability and reliability for not only influencing vacuum interrupter are jumped, but also in making process, since moving contact and static contact disconnect
Apart from small, electric arc will not extinguish, and arc energy is accumulated rapidly in vacuum extinction room, be easy to produce contact fever, Welding Phenomena, lead
It causes contact electrical wear to aggravate, seriously affects the break performance and service life of vacuum interrupter.
Summary of the invention
The purpose of the present invention is to provide a kind of vacuum interrupters with flexible electrode support construction, utilize resilient support
Part absorbs the impact kinetic energy to close a floodgate and meets vacuum circuit breaker performance parameter to reduce the closing rebound of vacuum circuit breaker
Standard requirements.
The technical scheme adopted by the invention is that: the vacuum interrupter with flexible electrode support construction, respectively by soft
Property electrode supporting structure connection dynamic guide rod, moving contact and quiet guide rod, static contact, the moving contact and static contact is opposite sets
It sets, the flexible electrode support construction includes at least cricoid supporting element, and the supporting element offers at least one along its circumferential direction
Energy-absorbing slot, described energy-absorbing slot at least one end are connected with through-hole.
The features of the present invention also characterized in that
The flexible electrode support construction further includes being set between dynamic guide rod, moving contact and quiet guide rod, static contact
Contact base, the supporting element are set in the contact base.
The opening of the contact base is connected with contact tray, and the moving contact, static contact are respectively arranged at the contact tray
On.
Magnetism gathering rings are additionally provided in the contact base, the magnetism gathering rings are sheathed on the supporting element.
It is carved on the supporting element along a circumference and is equipped with a plurality of energy-absorbing slot, be mutually not attached between the energy-absorbing slot.
It is carved on the supporting element along at least two circumferences and is equipped with a plurality of energy-absorbing slot, the energy-absorbing slot positioned at same circumference is mutual
It is not attached to.
Energy-absorbing groove location on two neighboring circumference intermeshes.
The energy-absorbing slot is the helical structure being arranged along the supporting element.
The beneficial effects of the present invention are: vacuum interrupter of the invention using flexible electrode support construction deformation occurs absorb
The impact kinetic energy generated that closes a floodgate can effectively inhibit even vacuum to be avoided to go out to reduce the reaction force between dynamic/static contact
The closing rebound of arc chamber meets the requirement of vacuum circuit breaker performance parameter.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the vacuum interrupter with flexible electrode support construction of the invention；
Fig. 2 is a kind of structural schematic diagram of supporting element in Fig. 1；
Fig. 3 is the top view of Fig. 2；
Fig. 4 is another structural schematic diagram of supporting element in Fig. 1.
In figure, 1. contact bases, 2. contact trays, 3-1. moving contact, 3-2. static contact, 4. magnetism gathering rings, 5. supporting elements, 6. energy-absorbings
Slot, 7. through-holes, 8. dynamic guide rods, 9. quiet guide rods, 10. corners.
Specific embodiment
The following describes the present invention in detail with reference to the accompanying drawings and specific embodiments.
The structure of vacuum interrupter provided by the invention with flexible electrode support construction as shown in Figure 1, pass through respectively
Dynamic guide rod 8, moving contact 3-1 and quiet guide rod 9, static contact 3-2, moving contact 3-1 and the stationary contact of flexible electrode support construction connection
Head 3-2 is oppositely arranged, and flexible electrode support construction includes at least cricoid supporting element 5, and supporting element 5 offers at least along its circumferential direction
One energy-absorbing slot 6.Further, at least one end of energy-absorbing slot 6 is connected with through-hole 7.Preferably, all it is arranged at 6 both ends of energy-absorbing slot
There is through-hole 7.
Further, flexible electrode support construction further includes being set to dynamic guide rod 8, moving contact 3-1 and quiet guide rod 9, quiet
Contact base 1 between contact 3-2, supporting element 5 are set in contact base 1.Further, the opening of contact base 1 is connected with
Contact tray 2, moving contact 3-1, static contact 3-2 are respectively arranged on contact tray 2, and supporting element 5 connects 1 bottom of contact base and contact tray
2.In turn, it is preferred that magnetism gathering rings 4 are additionally provided in contact base 1, magnetism gathering rings 4 are sheathed on 5 outside of supporting element.
The angle of energy-absorbing slot 6 on supporting element 5 of the invention, which is 30 ° -240 °, to be advisable, and the width of energy-absorbing slot 6 is then with 1-
4mm is advisable, and the diameter of through-hole 7 is advisable with 3-8mm.
Referring to fig. 2 and Fig. 3, it discloses a kind of structure of the energy-absorbing slot 6 on supporting element 5, along one on the supporting element 5
Circumference, which is carved, is equipped with a plurality of energy-absorbing slot 6 (forming single layer endergonic structure), is mutually not attached between energy-absorbing slot 6.Energy-absorbing in the present embodiment
The quantity of slot 6 is 3, groove width 3mm, and corner 10 is 80 °, and the starting point of energy-absorbing slot 6 and the diameter of end vias 7 are 5mm.
Example, it is carved on supporting element 5 along at least two circumferences and is equipped with a plurality of 6 (formation at least two layers of suction of energy-absorbing slot
Energy structure), the energy-absorbing slot 6 positioned at same circumference is mutually not attached to.Preferably, 6 position of energy-absorbing slot on two neighboring circumference
It intermeshes.Fig. 4 then discloses a kind of supporting piece structure of two layers of endergonic structure, and the quantity of energy-absorbing slot 6 is 6, and groove width is
2mm, the angle of corner 10 are 80 °, and the starting point of energy-absorbing slot 6 and the diameter of end vias 7 are 4mm.Invention additionally discloses one
Two layers of endergonic structure supporting element 5 of kind, the quantity of energy-absorbing slot 6 are 2, groove width 1.5mm, and the angle of corner 10 is 240 °,
The starting point of energy-absorbing slot 6 and the diameter of end vias 7 are 3mm.
Example, energy-absorbing slot 6 can also be the helical structure (not shown) being arranged along supporting element 5, specifically, the suction
Energy slot 6 can be the slot of a connection along spiral shape setting, be also possible to along the spaced a plurality of slot of spiral shape.
When in flexible electrode support construction of the invention on the one hand the effect of supporting element 5 avoids contact base 1 from closing a floodgate because of mechanism
Collision be squeezed and deformed, cause contact base 1 and slot；On the other hand in vacuum interrupter making process, arc-chutes it is dynamic,
Static contact contact generates reaction force, and supporting element 5 plays the role of the transmitting of impulse force, and dynamic and static contact passes through supporting element 5 for reaction
Power passes to contact base 1, then passes to dynamic guide rod 8 and quiet guide rod 9, in this process, contact base 1, contact tray 2, dynamic guide rod 8
If certain deformation cannot occur with quiet guide rod 9, reaction force cannot be absorbed, and can be acted between dynamic/static contact, be produced
Raw spring, therefore the effect for the energy-absorbing slot 6 being equipped at 5 barrel of supporting element of the present invention is that the dynamic and static contact of arc-chutes closes a floodgate and collides
Afterwards, combined floodgate impact kinetic energy makes the energy-absorbing slot 6 on supporting element 5 deform in loading process, can inhale in 5 deformation process of supporting element
Energy is received, the reaction force that dynamic and static contact generates is eliminated, makes the contact of dynamic and static contact from rigidly becoming Elastic Contact, closes a floodgate
Impulse force is transmitted to contact base after absorbing major part by supporting element 5, then passes to the reaction force of moving conductive rod 8 and static conductive rod 9
It dies down, to reduce spring.
Claims (8)
1. the vacuum interrupter with flexible electrode support construction, which is characterized in that connected respectively by flexible electrode support construction
Dynamic guide rod, moving contact and the quiet guide rod, static contact connect, the moving contact and static contact are oppositely arranged, the flexible electrode branch
Support structure includes at least cricoid supporting element, and the supporting element offers at least one energy-absorbing slot, the energy-absorbing slot along its circumferential direction
At least one end is connected with through-hole.
2. as described in claim 1 with the vacuum interrupter of flexible electrode support construction, which is characterized in that the flexible electrical
Pole support construction further includes the contact base being set between dynamic guide rod, moving contact and quiet guide rod, static contact, and the supporting element is set
It is placed in the contact base.
3. as claimed in claim 2 with the vacuum interrupter of flexible electrode support construction, which is characterized in that the contact base
Opening be connected with contact tray, the moving contact, static contact are respectively arranged on the contact tray.
4. as claimed in claim 2 with the vacuum interrupter of flexible electrode support construction, which is characterized in that the contact base
Magnetism gathering rings are inside additionally provided with, the magnetism gathering rings are sheathed on the supporting element.
5. as described in claim 1 with the vacuum interrupter of flexible electrode support construction, which is characterized in that the supporting element
On carved along circumference and be equipped with a plurality of energy-absorbing slot, be mutually not attached between the energy-absorbing slot.
6. as described in claim 1 with the vacuum interrupter of flexible electrode support construction, which is characterized in that the supporting element
On carved along at least two circumferences and be equipped with a plurality of energy-absorbing slot, the energy-absorbing slot positioned at same circumference is mutually not attached to.
7. as claimed in claim 6 with the vacuum interrupter of flexible electrode support construction, which is characterized in that two neighboring circle
Energy-absorbing groove location on contour intermeshes.
8. as described in claim 1 with the vacuum interrupter of flexible electrode support construction, which is characterized in that the energy-absorbing slot
For the helical structure being arranged along the supporting element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039160.XA CN109698095A (en) | 2019-01-16 | 2019-01-16 | Vacuum interrupter with flexible electrode support construction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910039160.XA CN109698095A (en) | 2019-01-16 | 2019-01-16 | Vacuum interrupter with flexible electrode support construction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109698095A true CN109698095A (en) | 2019-04-30 |
Family
ID=66233995
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910039160.XA Pending CN109698095A (en) | 2019-01-16 | 2019-01-16 | Vacuum interrupter with flexible electrode support construction |
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| CN (1) | CN109698095A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047696A (en) * | 2019-05-14 | 2019-07-23 | 云南电网有限责任公司电力科学研究院 | Low spring vacuum arc-extinguishing chamber contact structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552153A (en) * | 2009-05-15 | 2009-10-07 | 宁波晟光电气有限公司 | A vacuum arc-extinguishing chamber contact |
| CN201622971U (en) * | 2010-01-13 | 2010-11-03 | 锦州华光玻璃开关管有限公司 | Longitudinal magnetic contact of bounce-proofing vacuum arc extinguish chamber |
| CN205303321U (en) * | 2015-12-18 | 2016-06-08 | 江苏维爱斯电器有限公司 | Reduce vacuum interrupter of contact rigidity collision |
| CN206225281U (en) * | 2016-12-05 | 2017-06-06 | 浙江麦格电气有限公司 | A kind of high-pressure vacuum breaker magnetic blowout room |
-
2019
- 2019-01-16 CN CN201910039160.XA patent/CN109698095A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101552153A (en) * | 2009-05-15 | 2009-10-07 | 宁波晟光电气有限公司 | A vacuum arc-extinguishing chamber contact |
| CN201622971U (en) * | 2010-01-13 | 2010-11-03 | 锦州华光玻璃开关管有限公司 | Longitudinal magnetic contact of bounce-proofing vacuum arc extinguish chamber |
| CN205303321U (en) * | 2015-12-18 | 2016-06-08 | 江苏维爱斯电器有限公司 | Reduce vacuum interrupter of contact rigidity collision |
| CN206225281U (en) * | 2016-12-05 | 2017-06-06 | 浙江麦格电气有限公司 | A kind of high-pressure vacuum breaker magnetic blowout room |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110047696A (en) * | 2019-05-14 | 2019-07-23 | 云南电网有限责任公司电力科学研究院 | Low spring vacuum arc-extinguishing chamber contact structure |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20190430 |
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| RJ01 | Rejection of invention patent application after publication |