CN105448550A - Tank-type breaker and static-end air retaining device thereof - Google Patents
Tank-type breaker and static-end air retaining device thereof Download PDFInfo
- Publication number
- CN105448550A CN105448550A CN201510912808.1A CN201510912808A CN105448550A CN 105448550 A CN105448550 A CN 105448550A CN 201510912808 A CN201510912808 A CN 201510912808A CN 105448550 A CN105448550 A CN 105448550A
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- CN
- China
- Prior art keywords
- static contact
- contact seat
- quiet
- air
- relief hole
- 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
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
Landscapes
- Breakers (AREA)
- Elimination Of Static Electricity (AREA)
Abstract
The invention discloses a tank-type breaker and a static-end air retaining device thereof. The static-end air retaining device of the tank-type breaker comprises a static insulated supporter, wherein a static contact base and an air retaining hood are arranged on the static insulated supporter; an exhaust hole is formed in the static contact base; and a pressure relief hole which is communicated with the exhaust hole in the static contact base is formed in the air retaining hood. The pressure relief hole is added to the air retaining hood; and hot airflow sprayed from an opening of the static contact base does not cause deformation of the air retaining hood due to over-high pressure in the air retaining hood, so that the insulating level of the breaker is ensured.
Description
Technical field
The present invention relates to breaker technical field, be specifically related to a kind of potting breaker and quiet terminal block device of air thereof.
Background technology
Potting breaker, as the one of primary cut-out, is widely used at present in electric power system.Potting breaker is in fixed contact assembling process, and more general use insulation pad supports the load bearing seat of fixed contact, and this load bearing seat is also known as static contact seat.For containing the high-temperature gas impact insulation of metallic vapour when preventing from cut-offfing, the quiet end structure of potting breaker has two kinds of forms at present, a kind of for not add gear device of air at quiet end, need to increase tank body volume to increase gas passage, the thermal current that generation is cut-off in guarantee is sprayed onto on tank body after can lowering the temperature again; Another kind of form is increase the devices such as retaining hood at quiet end.Such as, Chinese patent CN201859806U(authorized announcement date 2011.06.08) disclose a kind of screening arrangement of potting breaker static contact seat, this screening arrangement comprises static contact seat, retaining hood, insulation pad and shielding part, the terminal pad of insulation pad, retaining hood, shielding part and static contact seat is linked into an integrated entity successively by bolt.One end of shielding part is conical, and this part extend into the inner chamber of static contact seat.When circuit breaker cut-offs, the High Temperature Gas of generation fails to be convened for lack of a quorum and enters static contact seat inner chamber at a high speed, and the taper seat of shielding part can play effective guide functions, makes air-flow enter retaining hood fast, can avoid the failure of interruption fault because air-flow does not freely cause to a certain extent.But the front end of this radome has turnup structure, the gather qi together effect due to flange causes retaining hood air pressure inside to raise rapidly and skewness and deforming.Such tank interior will be no longer a concentric cylinder electric field, and insulating capacity declines.
Summary of the invention
The object of this invention is to provide the quiet terminal block device of air of a kind of potting breaker, to solve easy the distortion under hyperbar effect of existing gear device of air existence, cause the technical problem that tank body insulating capacity declines.The present invention simultaneously also provides a kind of potting breaker using this gear device of air.
In order to realize above object, in the present invention, the technical scheme of potting breaker quiet terminal block device of air is as follows: the quiet terminal block device of air of potting breaker, comprise quiet insulation column, quiet insulation column is provided with static contact seat, retaining hood, static contact seat is provided with steam vent, and described retaining hood is provided with the relief hole of the steam vent being communicated with described static contact seat.
Described retaining hood comprises the connecting portion for being connected with quiet insulation column being in described static contact seat peripheral direction, to have inner chamber cover body and being in bottom static contact seat, and described relief hole is arranged on the chamber wall of described cover body.
Described relief hole has one group at least and along the peripheral distribution of cover body, described relief hole and described steam vent are staggeredly arranged along on the axis direction of described static contact seat.
The chamber wall of described cover body extends towards the axis direction of described static contact seat.
The bottom of described static contact seat is provided with guiding cone, and described guiding cone has the guide face for being guided to the steam vent of static contact seat by air-flow.
Potting breaker of the present invention adopts following technical scheme, potting breaker comprises tank body, quiet terminal block device of air, quiet terminal block device of air comprises quiet insulation column, quiet insulation column is connected on tank body, quiet insulation column is provided with static contact seat, retaining hood, static contact seat is provided with steam vent, and described retaining hood is provided with the relief hole of the steam vent being communicated with described static contact seat.
Described retaining hood comprises the connecting portion for being connected with quiet insulation column being in described static contact seat peripheral direction, to have inner chamber cover body and being in bottom static contact seat, and described relief hole is arranged on the chamber wall of described cover body.
Described relief hole has one group at least and along the peripheral distribution of cover body, described relief hole and described steam vent are staggeredly arranged along on the axis direction of described static contact seat.
The chamber wall of described cover body extends towards the axis direction of described static contact seat.
The bottom of described static contact seat is provided with guiding cone, and described guiding cone has the guide face for being guided to the steam vent of static contact seat by air-flow.
Beneficial effect of the present invention: the quiet terminal block device of air of potting breaker of the present invention, due to retaining hood adding relief hole, the thermal current of static contact seat opening ejection can not make retaining hood internal pressure too high and causes retaining hood to be out of shape thus ensure that the insulation level of circuit breaker.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention.
Embodiment
The embodiment of the quiet terminal block device of air of potting breaker of the present invention: as shown in Figure 1, the quiet terminal block device of air of potting breaker, comprise quiet insulation column 3, one end of quiet insulation column 3 is connected on the tank body 1 of potting breaker, quiet insulation column 3 other end is provided with static contact seat 2, retaining hood 4, static contact seat 2 circumference is provided with steam vent 6, and retaining hood 4 is provided with the relief hole 43 of the steam vent 6 being communicated with static contact seat 2.Retaining hood 4 comprises the connecting portion 41 for being connected with quiet insulation column 3 being in static contact seat peripheral direction, to have inner chamber cover body 42 and being in bottom static contact seat.Cover body 42 is in tubular, and opening, towards the moved end of circuit breaker, is set in the periphery of static contact seat 2, and connecting portion 41 is formed by the flange of the fold inward bottom cover body.Static contact seat 2, retaining hood 4 are bolted together on quiet insulation column 3.Static contact seat is gone back radial convex and be provided with junction block, cover body is reserved with the resigning hole that this junction block is stepped down, interfere when preventing from installing.
Relief hole 43 is arranged on the chamber wall of cover body 41, and relief hole 43 has five groups, and each group of axis direction along cover body (left and right directions) is spaced apart, and the relief hole often organized and periphery along cover body are uniformly distributed.In order to prevent the air-flow penetrated from the steam vent of static contact seat from directly being discharged by relief hole, temperature is too high, and relief hole and steam vent are staggeredly arranged along on the axis direction of static contact seat, also namely makes relief hole be in the top (left side of cover body) of cover body.The chamber wall of cover body extends towards the axis direction of static contact seat, turns edge, ensure the smooth and easy discharge of air-flow in the left end of cover body 42 is no longer inwardly arranged.
The bottom of static contact seat 2 is provided with guiding cone 5, and guiding cone 5 has the guide face for being guided to the steam vent of static contact seat by air-flow.Guide face is formed by the conical surface of guiding cone.The cone point of guiding cone 5 extends towards the direction deviated from bottom static contact seat.By arranging the guide functions of guiding cone, air-flow is made to enter in retaining hood rapidly.
When circuit breaker cut-offs, the high temperature gas flow produced is sprayed onto the bottom of static contact seat 2 along static contact seat inner chamber, under the effect of bottom guiding cone 5, thermal current is directly injected to the cover body 42 of retaining hood 4 from the venthole ejection of quiet support, under the effect of retaining hood 4, part thermal current has sprayed to direction, circuit breaker moved end along retaining hood opening direction, part thermal current is ejected on the inwall of tank body by the relief hole of retaining hood, thermal current now have passed through repeatedly to reflect and fully cools, can not burn to inner tank wall generation and form discharge channel, prevent failure of interruption situation from occurring.Due to retaining hood adding relief hole, the thermal current of static contact seat opening ejection can not make retaining hood internal pressure too high and causes retaining hood to be out of shape thus ensure that the insulation level of circuit breaker.Retaining hood opening is towards direction, moved end simultaneously, prevents thermal current to blow to and quiet end support insulators makes insulating part aging and reduces insulation property, serve protective effect to insulating part.
In the present embodiment, be wholely set deflection cone by the direct bottom at static contact seat, can prevent air-flow from entering into quiet insulation column part; In other embodiments, the separate type of deflection cone and static contact seat can be adopted, be arranged on together on quiet insulation column.
In other embodiments, the group number of relief hole also can be arranged according to actual needs, such as, be arranged to one group, two groups etc.
The embodiment of potting breaker of the present invention, potting breaker comprises tank body, quiet terminal block device of air, quiet terminal block device of air comprises quiet insulation column, quiet insulation column is connected on tank body, quiet insulation column is provided with static contact seat, retaining hood, static contact seat is provided with steam vent, and retaining hood is provided with the relief hole of the steam vent being communicated with static contact seat.Quiet terminal block device of air is identical with the quiet terminal block device of air structure in above-mentioned potting breaker quiet terminal block device of air embodiment, and concrete execution mode is no longer described in detail in detail.Effectively can improve air-flow guiding by the quiet terminal block device of air of the present invention, promote insulation level and the connecting-disconnecting function of circuit breaker, promote the reliability of circuit breaker.
Claims (10)
1. the quiet terminal block device of air of potting breaker, comprise quiet insulation column, quiet insulation column is provided with static contact seat, retaining hood, static contact seat is provided with steam vent, it is characterized in that: described retaining hood is provided with the relief hole of the steam vent being communicated with described static contact seat.
2. the quiet terminal block device of air of potting breaker according to claim 1, it is characterized in that: described retaining hood comprises the connecting portion for being connected with quiet insulation column being in described static contact seat peripheral direction, to have inner chamber cover body and being in bottom static contact seat, and described relief hole is arranged on the chamber wall of described cover body.
3. the quiet terminal block device of air of potting breaker according to claim 2, is characterized in that: described relief hole has one group at least and along the peripheral distribution of cover body, described relief hole and described steam vent are staggeredly arranged along on the axis direction of described static contact seat.
4. the quiet terminal block device of air of potting breaker according to claim 3, is characterized in that: the chamber wall of described cover body extends towards the axis direction of described static contact seat.
5. the quiet terminal block device of air of the potting breaker according to any one of Claims 1-4, is characterized in that: the bottom of described static contact seat is provided with guiding cone, and described guiding cone has the guide face for being guided to the steam vent of static contact seat by air-flow.
6. potting breaker, comprise tank body, quiet terminal block device of air, quiet terminal block device of air comprises quiet insulation column, quiet insulation column is connected on tank body, quiet insulation column is provided with static contact seat, retaining hood, static contact seat is provided with steam vent, it is characterized in that: described retaining hood is provided with the relief hole of the steam vent being communicated with described static contact seat.
7. potting breaker according to claim 6, it is characterized in that: described retaining hood comprises the connecting portion for being connected with quiet insulation column being in described static contact seat peripheral direction, to have inner chamber cover body and being in bottom static contact seat, and described relief hole is arranged on the chamber wall of described cover body.
8. potting breaker according to claim 7, is characterized in that: described relief hole has one group at least and along the peripheral distribution of cover body, described relief hole and described steam vent are staggeredly arranged along on the axis direction of described static contact seat.
9. potting breaker according to claim 8, is characterized in that: the chamber wall of described cover body extends towards the axis direction of described static contact seat.
10. the potting breaker according to claim 6 to 9 any one, is characterized in that: the bottom of described static contact seat is provided with guiding cone, and described guiding cone has the guide face for being guided to the steam vent of static contact seat by air-flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912808.1A CN105448550B (en) | 2015-12-11 | 2015-12-11 | Potting breaker and its static side keep off device of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912808.1A CN105448550B (en) | 2015-12-11 | 2015-12-11 | Potting breaker and its static side keep off device of air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105448550A true CN105448550A (en) | 2016-03-30 |
| CN105448550B CN105448550B (en) | 2018-08-24 |
Family
ID=55558632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510912808.1A Expired - Fee Related CN105448550B (en) | 2015-12-11 | 2015-12-11 | Potting breaker and its static side keep off device of air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105448550B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987152A (en) * | 2018-07-31 | 2018-12-11 | 平高集团威海高压电器有限公司 | A kind of arc-chutes and breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129043U (en) * | 1984-01-17 | 1985-08-29 | 日新電機株式会社 | Disconnector for gas-sealed switchgear |
| CN201859806U (en) * | 2010-10-08 | 2011-06-08 | 山东泰开高压开关有限公司 | Shielding device for static contact seat of tank breaker |
| CN103828008A (en) * | 2011-09-28 | 2014-05-28 | 西门子公司 | Arrangement comprising a circuit breaker interrupter unit |
| CN203631362U (en) * | 2013-12-13 | 2014-06-04 | 中国西电电气股份有限公司 | A flow guide shield used for a composite apparatus arc extinguish chamber |
| CN205335099U (en) * | 2015-12-11 | 2016-06-22 | 平高集团有限公司 | Tank type breaker and quiet end keeps off gas device thereof |
-
2015
- 2015-12-11 CN CN201510912808.1A patent/CN105448550B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60129043U (en) * | 1984-01-17 | 1985-08-29 | 日新電機株式会社 | Disconnector for gas-sealed switchgear |
| CN201859806U (en) * | 2010-10-08 | 2011-06-08 | 山东泰开高压开关有限公司 | Shielding device for static contact seat of tank breaker |
| CN103828008A (en) * | 2011-09-28 | 2014-05-28 | 西门子公司 | Arrangement comprising a circuit breaker interrupter unit |
| CN203631362U (en) * | 2013-12-13 | 2014-06-04 | 中国西电电气股份有限公司 | A flow guide shield used for a composite apparatus arc extinguish chamber |
| CN205335099U (en) * | 2015-12-11 | 2016-06-22 | 平高集团有限公司 | Tank type breaker and quiet end keeps off gas device thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108987152A (en) * | 2018-07-31 | 2018-12-11 | 平高集团威海高压电器有限公司 | A kind of arc-chutes and breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105448550B (en) | 2018-08-24 |
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Granted publication date: 20180824 Termination date: 20211211 |