CN201242972Y - Fixing/sealing phase pole for circuit breaker and sealing ring thereof - Google Patents
Fixing/sealing phase pole for circuit breaker and sealing ring thereof Download PDFInfo
- Publication number
- CN201242972Y CN201242972Y CNU2008201452792U CN200820145279U CN201242972Y CN 201242972 Y CN201242972 Y CN 201242972Y CN U2008201452792 U CNU2008201452792 U CN U2008201452792U CN 200820145279 U CN200820145279 U CN 200820145279U CN 201242972 Y CN201242972 Y CN 201242972Y
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- ring
- sealing
- face
- vacuum interrupter
- lip ring
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Abstract
The utility model discloses a breaker used fixedly sealed phase column and a sealing ring thereof. The breaker used fixedly sealed phase column comprises a vacuum arc extinguish chamber, an upper terminal, a movable terminal, a lower terminal and an outer insulation; wherein, the upper terminal is connected with the static end of the vacuum arc extinguish chamber; the movable terminal is connected with the movable end of the vacuum arc extinguish chamber; and the lower terminal and the outer insulation are connected with the outside of the movable terminal. The sealing ring is connected with the vacuum arc extinguish chamber and the lower terminal; the sealing ring comprises an annular sealing piece; at least one face of the top face and the bottom face of the annular sealing piece is provided with an annular trough; the annular trough is provided with an O-shaped rubber ring; and the O-shaped rubber ring is partly protruded from the face of the annular sealing piece.
Description
Technical field
The utility model relates to a kind of circuit breaker with sealing the phase post admittedly, refers in particular to the sealing ring of this phase post.
Background technology
The major part of vacuum circuit-breaker is three phase posts, and each phase post all includes upper terminal, lower terminal, vacuum interrupter and external insulation.This vacuum interrupter is the most important element that the vacuum circuit-breaker electric current cut-offs, and is the heart of vacuum circuit-breaker.This vacuum interrupter utilizes vacuum as arc-extinguishing medium.This vacuum interrupter comprises the hollow circular cylinder of a pottery or glass, and these hollow circular cylinder two ends are provided with stainless steel or oxygen-free copper end cap, and this end cap and pottery or glass shell have been welded to form a vacuum chamber.Be provided with moved end contact and quiet end contact in this vacuum chamber, this moved end contact links to each other with the end cap of an end by bellows and can carry out opening and closing movement.The inside of this vacuum interrupter is vacuum state, and has enough dielectric strengths, and this is to be guaranteed by the structure of vacuum interrupter itself.This vacuum interrupter is under common, reasonable environmental condition, and for example height above sea level is low, humidity is little, under the condition pollution-free or that seldom pollute, and electric pressure can directly rely on air as the external insulation medium when 12KV.But when environmental condition changes, for example high height above sea level, high humility, have and pollute or have under the filthy condition, the dielectric strength of the external insulation of vacuum interrupter descends, in addition, 40.5KV the external insulation of the vacuum interrupter of electric pressure distance is too short, therefore all can not directly utilize air as dielectric.These vacuum extinction outdoor insulation dielectric property descend can cause the failure of circuit breaker certainly.
In order to improve the external insulation performance of vacuum interrupter, people have designed following method: vacuum interrupter is encapsulated in the solid insulating material, forms whole phase post.So not only can increase vacuum extinction outdoor insulation dielectric properties, and can even be enclosed in admittedly together with instrument transformer sometimes, can improve the integral installation characteristic of vacuum circuit-breaker the bus terminal.Also have following problem but do like this: be encapsulated in the size matching problem of vacuum interrupter in the insulating material and other parts, the stress problem that the contraction of insulating material in solidification process causes, the stress problem that insulating material in use expands with heat and contract with cold and causes also needs to solve the air gap problem that might exist equally.
The utility model content
The utility model provides a kind of circuit breaker with sealing phase post and sealing ring thereof admittedly, and the circuit breaker that it has overcome background technology seals the existing dimensional problem of phase post admittedly, the deficiency of internal stress and air gap is arranged.
One of technical scheme that its technical problem that solves the utility model adopts is:
A kind of circuit breaker sealing ring that seals the phase post admittedly, this seals admittedly, and the phase post comprises vacuum interrupter, is connected the upper terminal of the quiet end of vacuum interrupter, the lower terminal that is connected the moved end son of vacuum interrupter moved end and is connected son outside, moved end, sealing circle be tightly connected vacuum interrupter and lower terminal, the sealing circle comprises a lip ring, have at least in the end face of this lip ring and the bottom surface on the face and offer a circular trough, this circular trough is provided with an O type rubber ring, and this O type rubber ring part is also protruded this face of lip ring.
In the preferred embodiment of the present utility model, all offer a circular trough on the end face of this lip ring and the bottom surface, all be provided with an O type rubber ring on this circular trough, this O type rubber ring partly protrudes this face of lip ring.
In the preferred embodiment of the present utility model, this lip ring material is an epoxy resin.
In the preferred embodiment of the present utility model, this lip ring is produced by automatic pressure gelation process by epoxy resin.
In the preferred embodiment of the present utility model, this lip ring is produced by the vacuum pouring method by epoxy resin.
In the preferred embodiment of the present utility model, this lip ring is produced by the Vehicle Processing method by epoxy resin.
Two of the technical scheme that its technical problem that solves the utility model adopts is:
A kind of circuit breaker is with sealing the phase post admittedly, it comprises vacuum interrupter, be connected the upper terminal of the quiet end of vacuum interrupter, be connected the vacuum interrupter moved end moved end, be connected the lower terminal and the external insulation of son outside, moved end, sealing circle be tightly connected vacuum interrupter and lower terminal, the sealing circle comprises a lip ring, have at least in the end face of this lip ring and the bottom surface on the face and offer a circular trough, this circular trough is provided with an O type rubber ring, and this O type rubber ring part is also protruded this face of lip ring.
In the preferred embodiment of the present utility model, all offer a circular trough on the end face of this lip ring and the bottom surface, all be provided with an O type rubber ring on this circular trough, this O type rubber ring partly protrudes this face of lip ring and sealing contact vacuum interrupter or lower terminal.
In the preferred embodiment of the present utility model, this lip ring material is an epoxy resin.
In the preferred embodiment of the present utility model, this lip ring is produced by automatic pressure gelation process by epoxy resin, or, produce by the vacuum pouring method, or, produce by the Vehicle Processing method.
The technical program solves the difficult point that background technology is implemented: 1, sealing ring has size adjustment, the size of upper terminal, lower terminal, vacuum interrupter is difficult to change, and just can make entire product upper and lower side subcenter apart from reaching desirable size by the size of adjusting sealing ring; 2, the dimensional tolerance of vacuum interrupter is bigger, and the sealing circle respectively has an O type rubber ring up and down, can reduce the influence of vacuum interrupter dimensional discrepancy; 3, seal the phase post admittedly in poured with epoxy resin, if epoxy resin enters the vacuum interrupter moved end, can cause the moved end can't be movable, and sealing ring can stop resin to enter the vacuum interrupter moved end from position between vacuum interrupter and the lower terminal; 4, in the production process of sealing the phase post admittedly, epoxy resin can produce 1% contraction, and seal phase post upper terminal (copper), lower terminal (copper), vacuum interrupter (pottery) etc. admittedly all is the rigidity material, can't shrink, seal the phase post so admittedly and have very big internal stress, serious meeting causes solid envelope phase band of column epoxy resins cracking, this novel seal circle respectively has an O type groove up and down, add O type rubber ring, can absorb the contraction of epoxy resin, thereby reduce the internal stress of solid envelope phase post greatly.In like manner, the sealing circle can also absorb the internal stress that variations in temperature is expanded with heat and contract with cold and caused in the solid envelope phase post use; 5, the sealing part is with to seal phase post external insulation material admittedly identical, and shrinkage is the same, can not produce air gap in the production of sealing the phase post admittedly with in using.6, this epoxy resin is high temperature resistant, can bear the high temperature in solid envelope phase post production and the use.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 has illustrated the generalized section of the solid envelope phase post of a preferred embodiment.
Embodiment
Please refer to Fig. 1, a kind of circuit breaker is with sealing the phase post admittedly, and it comprises vacuum interrupter 10, is connected the upper terminal 20 of vacuum interrupter 10 quiet ends, is connected moved end 30 of vacuum interrupter 10 moved ends, the lower terminal 40 that is connected son 30 outsides, moved end, the sealing ring 50 and the external insulation of be tightly connected vacuum interrupter 10 and lower terminal 40.
This lip ring is produced by automatic pressure gelation process by epoxy resin, this manufacture method is the APG method, geomery according to seal is carried out mould in advance, under certain pressure, inject epoxy resin then, hot setting reaction moulding is carried out surface sand-blasting again and is handled and clean behind the product stripping.The raw material of sealing part are epoxy resin, and epoxy resin producer is HUNTSMAN, and the trade mark is CY5824/HY5824 or CW229/HW229.Also can adopt the vacuum pouring method to produce as required, or the Vehicle Processing method produce.Those manufacture methods all are prior art.
When the seal size design, give the certain decrement of O type circle, also to reserve some decrements simultaneously, when sealing the cast of phase post admittedly, sealing ring just can play the effect of sealing like this, and seal can compress again when epoxy resin shrinks simultaneously, reduces internal stress.
This external insulation is to be cast in by epoxy resin to form outside this vacuum interrupter 10, upper terminal 20, lower terminal 40 and the sealing ring 50.Sealing circle outer rim through blasting treatment with seal epoxy resin that post mutually uses admittedly in conjunction with tight one each other.
The above, it only is the utility model preferred embodiment, so can not limit the scope that the utility model is implemented with this, i.e. the equivalence of doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model patent contains.
Claims (10)
1. a circuit breaker is with the sealing ring that seals the phase post admittedly, this seals admittedly, and the phase post comprises vacuum interrupter, is connected the upper terminal of the quiet end of vacuum interrupter, the lower terminal that is connected the moved end son of vacuum interrupter moved end and is connected son outside, moved end, sealing circle be tightly connected vacuum interrupter and lower terminal, it is characterized in that: the sealing circle comprises a lip ring, have at least in the end face of this lip ring and the bottom surface on the face and offer a circular trough, this circular trough is provided with an O type rubber ring, and this O type rubber ring partly protrudes this face of lip ring.
2. a kind of circuit breaker sealing ring that seals the phase post admittedly according to claim 1, it is characterized in that: all offer a circular trough on the end face of this lip ring and the bottom surface, all be provided with an O type rubber ring on this circular trough, this O type rubber ring partly protrudes this face of lip ring.
3. a kind of circuit breaker sealing ring that seals the phase post admittedly according to claim 1 and 2, it is characterized in that: this lip ring material is an epoxy resin.
4. a kind of circuit breaker sealing ring that seals the phase post admittedly according to claim 3, it is characterized in that: this lip ring is produced by automatic pressure gelation process by epoxy resin.
5. a kind of circuit breaker sealing ring that seals the phase post admittedly according to claim 3, it is characterized in that: this lip ring is produced by the vacuum pouring method by epoxy resin.
6. a kind of circuit breaker sealing ring that seals the phase post admittedly according to claim 3, it is characterized in that: this lip ring is produced by the Vehicle Processing method by epoxy resin.
7. a circuit breaker is with sealing the phase post admittedly, it comprises vacuum interrupter, be connected the upper terminal of the quiet end of vacuum interrupter, be connected the vacuum interrupter moved end moved end, be connected the lower terminal and the external insulation of son outside, moved end, sealing circle be tightly connected vacuum interrupter and lower terminal, it is characterized in that: the sealing circle comprises a lip ring, have at least in the end face of this lip ring and the bottom surface on the face and offer a circular trough, this circular trough is provided with an O type rubber ring, and this O type rubber ring partly protrudes this face of lip ring.
8. a kind of circuit breaker according to claim 7 is with sealing the phase post admittedly, it is characterized in that: all offer a circular trough on the end face of this lip ring and the bottom surface, all be provided with an O type rubber ring on this circular trough, this O type rubber ring partly protrudes this face of lip ring and sealing contact vacuum interrupter or lower terminal.
According to claim 7 or 8 described a kind of circuit breakers with sealing the phase post admittedly, it is characterized in that: this lip ring material is an epoxy resin.
10. a kind of circuit breaker according to claim 9 is characterized in that with sealing the phase post admittedly: this lip ring is produced by automatic pressure gelation process by epoxy resin, or, produce by the vacuum pouring method, or, produce by the Vehicle Processing method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201452792U CN201242972Y (en) | 2008-08-18 | 2008-08-18 | Fixing/sealing phase pole for circuit breaker and sealing ring thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201452792U CN201242972Y (en) | 2008-08-18 | 2008-08-18 | Fixing/sealing phase pole for circuit breaker and sealing ring thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201242972Y true CN201242972Y (en) | 2009-05-20 |
Family
ID=40716263
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201452792U Expired - Lifetime CN201242972Y (en) | 2008-08-18 | 2008-08-18 | Fixing/sealing phase pole for circuit breaker and sealing ring thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201242972Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488052A (en) * | 2019-08-30 | 2019-11-22 | 国网山东省电力公司平阴县供电公司 | A kind of electric tool insulation detection device |
-
2008
- 2008-08-18 CN CNU2008201452792U patent/CN201242972Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110488052A (en) * | 2019-08-30 | 2019-11-22 | 国网山东省电力公司平阴县供电公司 | A kind of electric tool insulation detection device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090520 |
|
| CX01 | Expiry of patent term |