CN105448592A - Tank-type breaker and moving-end air retaining device thereof - Google Patents
Tank-type breaker and moving-end air retaining device thereof Download PDFInfo
- Publication number
- CN105448592A CN105448592A CN201510912809.6A CN201510912809A CN105448592A CN 105448592 A CN105448592 A CN 105448592A CN 201510912809 A CN201510912809 A CN 201510912809A CN 105448592 A CN105448592 A CN 105448592A
- Authority
- CN
- China
- Prior art keywords
- moved end
- retaining hood
- touch base
- insulation column
- air
- 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.)
- Granted
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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
- H01H33/70—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid
- H01H33/88—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts
- H01H33/90—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism
- H01H33/91—Switches with separate means for directing, obtaining, or increasing flow of arc-extinguishing fluid the flow of arc-extinguishing fluid being produced or increased by movement of pistons or other pressure-producing parts this movement being effected by or in conjunction with the contact-operating mechanism the arc-extinguishing fluid being air or gas
Landscapes
- Circuit Breakers (AREA)
Abstract
The invention discloses a tank-type breaker and a moving-end air retaining device thereof. The moving-end air retaining device of the tank-type breaker comprises a moving-end insulated supporter, wherein a moving-end contact base is arranged on the moving-end insulated supporter; an inner air retaining hood is arranged in an inner cavity of the moving-end contact base; an exhaust hole is formed in the moving-end contact base; an outer air retaining hood is arranged on the moving-end insulated supporter, and is located at the periphery of the moving-end contact base; and the outer air retaining hood comprises the inner cavity which is communicated with the exhaust hole and of which an opening is opposite to the moving-end insulated supporter. The outer air retaining hood is added on the basis of an existing inner air retaining hood; one part of hot airflow generated by breaking the breaker is sprayed through the exhaust hole of the moving-end contact base after the outer air retaining hood is added; the part of hot airflow is sprayed to the wall of the inner cavity of the outer air retaining hood, but not directly sprayed to the inner wall of a tank body; and through the arrangement of the outer air retaining hood, a flow-guide channel is added, so that cooling of the hot airflow is quickened; and a breaking failure is avoided.
Description
Technical field
The present invention relates to potting breaker technical field, be specifically related to a kind of potting breaker and moved end gear device of air thereof.
Background technology
Potting breaker, as the one of primary cut-out, is widely used in electric power system.Current potting breaker moved end does not set up any gear gas equipment mostly, and the thermal current produced in interrupting process is sprayed onto on insulated tension pole and moved end insulating supporting by dynamic support base perforate, makes insulating part aging, reduces the insulation property of circuit breaker.
For solving the problem, Chinese patent CN201820687U(authorized announcement date is 2011.05.04) disclose the depressed structure of self-blasting circuit breaker moved end exhaust gear, the moved end touch base that the depressed structure of this gear comprises insulating supporting and is connected with insulating supporting, insulated tension pole pierces into insulating supporting cavity and is connected with the reinforcing pull rod in the touch base cavity of moved end.In the touch base of moved end, resonator end surface establishes a retaining hood, by arranging retaining hood, make a large amount of hot gas produced in circuit breaker interrupting process can be subject to retaining hood stop along pull bar in time moving in insulating supporting direction in the touch base of moved end and can not enter insulating supporting inner chamber, its inner chamber is returned along moved end touch base inwall, a large amount of hot gas cannot enter insulating supporting inner chamber by this gap, can solve thermal current to a certain extent and be ejected into the infringement problem that the support of insulated tension pole moved end causes it.But have certain distance outside retaining hood inwall and rod head, make branch's gas still can enter insulating supporting cavity through the gap of retaining hood, infringement dielectric chamber and insulated tension pole, make its insulation property reduce.In addition, the bottom of general moved end touch base offers steam vent, and a part of thermal current can be caused like this to be ejected in inner tank wall by steam vent, reduce its insulation property, containing foreign matters such as aluminium ions in thermal current, a discharge channel can be gone into, affect the break performance of circuit breaker.
Summary of the invention
The object of this invention is to provide a kind of potting breaker moved end gear device of air, with solve existing circuit breaker moved end gear device of air gear gas effect undesirable, understand some hot gas and to be ejected into technical problem in inner tank wall by the steam vent of moved end touch base.The present invention simultaneously also provides a kind of potting breaker using this potting breaker moved end to keep off device of air.
In order to realize above object, in the present invention, the technical scheme of potting breaker moved end gear device of air is as follows: potting breaker moved end gear device of air, comprise moved end insulation column, moved end insulation column is provided with moved end touch base, moved end touch base in the inner chamber is provided with interior retaining hood, described moved end touch base is provided with steam vent, described moved end insulation column is provided with outer retaining hood, described outer retaining hood is in the periphery of moved end touch base, described outer retaining hood have be communicated with described steam vent, the inner chamber of opening described moved end insulation column dorsad.
Described interior retaining hood comprises connecting portion for being connected with moved end touch base and cover body portion, interior retaining hood is provided with passes through mouth for moving contact pull rod shaft to what pass through, described cover body portion is taper, and the external diameter in described cover body portion gradually becomes large by one end of mouth to one end of connecting portion by being provided with.
Described interior retaining hood is provided with guide ring for coordinating with moving contact pull bar guiding movement in described by mouth place.
Described outer retaining hood comprises the housing of tubular and the syndeton for being connected with moved end insulation column, and described syndeton is formed by the in-flanges of housing, and described moved end touch base is provided with wire outlet seat, and described housing is provided with the resigning hole for avoiding described wire outlet seat.
Described potting breaker moved end gear device of air also comprises the moving contact pull bar with inner chamber, moving contact pull bar is provided with the venthole of the inner chamber being communicated with described moved end touch base, be provided with the deflection cone guided air-flow in described moving contact pull bar, the top of described deflection cone is towards the side away from described moved end insulation column.
Potting breaker of the present invention adopts following technical scheme, potting breaker, comprise tank body, potting breaker moved end gear device of air, potting breaker moved end gear device of air comprises moved end insulation column, moved end insulation column is provided with moved end touch base, moved end touch base in the inner chamber is provided with interior retaining hood, described moved end touch base is provided with steam vent, described moved end insulation column is provided with outer retaining hood, described outer retaining hood is in the periphery of moved end touch base, described outer retaining hood have be communicated with described steam vent, the inner chamber of opening described moved end insulation column dorsad.
Described interior retaining hood comprises connecting portion for being connected with moved end touch base and cover body portion, interior retaining hood is provided with passes through mouth for moving contact pull rod shaft to what pass through, described cover body portion is taper, and the external diameter in described cover body portion gradually becomes large by one end of mouth to one end of connecting portion by being provided with.
Described interior retaining hood is provided with guide ring for coordinating with moving contact pull bar guiding movement in described by mouth place.
Described outer retaining hood comprises the housing of tubular and the syndeton for being connected with moved end insulation column, and described syndeton is formed by the in-flanges of housing, and described moved end touch base is provided with wire outlet seat, and described housing is provided with the resigning hole for avoiding described wire outlet seat.
Described potting breaker moved end gear device of air also comprises the moving contact pull bar with inner chamber, moving contact pull bar is provided with the venthole of the inner chamber being communicated with described moved end touch base, be provided with the deflection cone guided air-flow in described moving contact pull bar, the top of described deflection cone is towards the side away from described moved end insulation column.
Beneficial effect of the present invention: potting breaker moved end of the present invention gear device of air, the basis of existing interior retaining hood adds outer retaining hood, after having had outer retaining hood, the thermal current part that circuit breaker cut-offs generation is ejected by the steam vent of moved end touch base, first this part thermal current can be ejected on the internal chamber wall of outer retaining hood, flow to the quiet end of circuit breaker along outer retaining hood inwall, and be not directly injected on the inwall of tank body.Adding flow-guiding channel by arranging outer retaining hood, accelerating the cooling of thermal current, avoiding the generation of failure of interruption.
Accompanying drawing explanation
Fig. 1 is the structural representation of embodiments of the invention.
Embodiment
The embodiment of potting breaker of the present invention, as shown in Figure 1, potting breaker comprises tank body 4, potting breaker moved end gear device of air.Potting breaker moved end gear device of air, comprise moved end insulation column 1, moved end insulation column 1 is provided with moved end touch base 2, the inner chamber of moved end touch base 2 is communicated with the cavity of moved end insulation column 1.Insulated tension pole 10 passes the cavity of moved end insulation column 1 and is connected with the moving contact pull bar 8 in moved end touch base 2 cavity.Moved end touch base 2 in the inner chamber is provided with interior gear gas 6 and covers, interior retaining hood 6 be provided with for moving contact pull bar 8 axially pass through by mouth, in being provided with the guide ring 7 for coordinating with moving contact pull bar 8 guiding movement by mouth place in interior retaining hood 6.Guide ring 7 is embedded in interior retaining hood 6, and moving contact pull bar 8 passes from this guide ring 7, both close contacts.Guide ring 7 not only can prevent air-flow from passing through but also can play the guiding role.As the guiding to arc control device, ensure the centering of moving contact.Interior retaining hood 6 comprises connecting portion 62 for being connected with moved end touch base and cover body portion 61, cover body portion 61 is in taper, the external diameter in cover body portion 61 gradually becomes large by one end of mouth to one end of connecting portion by being provided with, if the axis direction of definition insulated tension pole is left and right directions, namely cover body portion becomes large from right to left gradually.Cone structure has an effect for guiding to air-flow.The connecting portion of interior retaining hood is formed by flanging, which is provided with bolt hole.
The bottom (left side) of moved end touch base 2 is provided with steam vent 22, moved end insulation column 1 is also provided with outer retaining hood 5, outer retaining hood 5 is in the periphery of moved end touch base 2, outer retaining hood 5 have be communicated with steam vent 22, the inner chamber of opening moved end insulation column 1 dorsad, opening is also namely towards right side.Outer retaining hood 5 comprises the housing 51 of tubular and the syndeton 52 for being connected with moved end insulation column, and syndeton 52 is formed by the in-flanges of housing, and moved end touch base 2 is provided with wire outlet seat 21, and housing is provided with the resigning hole for avoiding described wire outlet seat 21.Interior retaining hood 6, moved end touch base 2, outer retaining hood 5 are bolted on moved end insulation column 1, and the syndeton of outer retaining hood 5 is between moved end insulation column and moved end touch base.
Moving contact pull bar 8 has the inner chamber for airflow, and moving contact pull bar 8 is provided with the venthole 81 of the inner chamber being communicated with moved end touch base, and be provided with the deflection cone 9 guided air-flow in moving contact pull bar 8, the top of deflection cone 9 is towards the side away from moved end insulation column 1.Deflection cone 9 is positioned at the left side of venthole.
When in circuit breaker interrupting process, the thermal current produced in arc control device has two kinds of modes to arrive inside, moved end, blast of hot air stream is spouting along moving contact pull bar 8 inner chamber, arrives inner under the effect of deflection cone 9, and it is inner that another personal share thermal current directly arrives moved end touch base 2 by relief valve.Thermal current is sprayed onto bottom along the inner chamber of moved end touch base 2, in bottom retaining hood 6 effect under, the steam vent ejection of thermal current driven end touch base is directly injected in outer retaining hood 5, and can not be ejected in moved end insulation column 1 inner chamber.Under the effect of retaining hood 5 outside, part thermal current has sprayed to the quiet extreme direction of circuit breaker along outer retaining hood 5 opening direction, be ejected on the inwall of tank body after the outer retaining hood of part thermal current ejection, 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.
In the present invention, the gear device of air of retaining hood and outer retaining hood composition both can effectively prevent thermal current from directly blowing on the inwall of tank body; prevent thermal current from burning to tank interior; can prevent again thermal current from blowing on moved end insulation column and insulated tension pole, protecting moved end insulation column and insulated tension pole can not burn charing and lose insulation effect because of thermal current.
In other embodiments, the cover body portion of interior retaining hood also can be arranged to cylindrical shape.
The embodiment of potting breaker moved end of the present invention gear device of air, this potting breaker moved end gear device of air is identical with the structure that the potting breaker moved end in above-mentioned potting breaker embodiment keeps off device of air, and embodiment no longer describes in detail.
Claims (10)
1. potting breaker moved end gear device of air, comprise moved end insulation column, moved end insulation column is provided with moved end touch base, moved end touch base in the inner chamber is provided with interior retaining hood, described moved end touch base is provided with steam vent, it is characterized in that: described moved end insulation column is provided with outer retaining hood, and described outer retaining hood is in the periphery of moved end touch base, described outer retaining hood have be communicated with described steam vent, the inner chamber of opening described moved end insulation column dorsad.
2. potting breaker moved end according to claim 1 gear device of air, it is characterized in that: described interior retaining hood comprises connecting portion for being connected with moved end touch base and cover body portion, interior retaining hood is provided with passes through mouth for moving contact pull rod shaft to what pass through, described cover body portion is taper, and the external diameter in described cover body portion gradually becomes large by one end of mouth to one end of connecting portion by being provided with.
3. potting breaker moved end according to claim 2 gear device of air, is characterized in that: described interior retaining hood is provided with guide ring for coordinating with moving contact pull bar guiding movement in described by mouth place.
4. potting breaker moved end according to claim 1 gear device of air, it is characterized in that: described outer retaining hood comprises the housing of tubular and the syndeton for being connected with moved end insulation column, described syndeton is formed by the in-flanges of housing, described moved end touch base is provided with wire outlet seat, and described housing is provided with the resigning hole for avoiding described wire outlet seat.
5. the potting breaker moved end gear device of air according to Claims 1-4 any one, it is characterized in that: described potting breaker moved end gear device of air also comprises the moving contact pull bar with inner chamber, moving contact pull bar is provided with the venthole of the inner chamber being communicated with described moved end touch base, be provided with the deflection cone guided air-flow in described moving contact pull bar, the top of described deflection cone is towards the side away from described moved end insulation column.
6. potting breaker, comprise tank body, potting breaker moved end gear device of air, potting breaker moved end gear device of air comprises moved end insulation column, moved end insulation column is provided with moved end touch base, moved end touch base in the inner chamber is provided with interior retaining hood, described moved end touch base is provided with steam vent, it is characterized in that: described moved end insulation column is provided with outer retaining hood, described outer retaining hood is in the periphery of moved end touch base, described outer retaining hood have be communicated with described steam vent, the inner chamber of opening described moved end insulation column dorsad.
7. potting breaker according to claim 6, it is characterized in that: described interior retaining hood comprises connecting portion for being connected with moved end touch base and cover body portion, interior retaining hood is provided with passes through mouth for moving contact pull rod shaft to what pass through, described cover body portion is taper, and the external diameter in described cover body portion gradually becomes large by one end of mouth to one end of connecting portion by being provided with.
8. potting breaker according to claim 7, is characterized in that: described interior retaining hood is provided with guide ring for coordinating with moving contact pull bar guiding movement in described by mouth place.
9. potting breaker according to claim 6, it is characterized in that: described outer retaining hood comprises the housing of tubular and the syndeton for being connected with moved end insulation column, described syndeton is formed by the in-flanges of housing, described moved end touch base is provided with wire outlet seat, and described housing is provided with the resigning hole for avoiding described wire outlet seat.
10. the potting breaker according to any one of claim 6 to 9, it is characterized in that: described potting breaker moved end gear device of air also comprises the moving contact pull bar with inner chamber, moving contact pull bar is provided with the venthole of the inner chamber being communicated with described moved end touch base, be provided with the deflection cone guided air-flow in described moving contact pull bar, the top of described deflection cone is towards the side away from described moved end insulation column.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912809.6A CN105448592B (en) | 2015-12-11 | 2015-12-11 | A kind of potting breaker and its moved end keep off device of air |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510912809.6A CN105448592B (en) | 2015-12-11 | 2015-12-11 | A kind of potting breaker and its moved end keep off device of air |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105448592A true CN105448592A (en) | 2016-03-30 |
| CN105448592B CN105448592B (en) | 2018-09-14 |
Family
ID=55558674
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510912809.6A Expired - Fee Related CN105448592B (en) | 2015-12-11 | 2015-12-11 | A kind of potting breaker and its moved end keep off device of air |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105448592B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109564836A (en) * | 2016-08-02 | 2019-04-02 | 西门子股份公司 | Breaker unit for power switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002334637A (en) * | 2001-05-09 | 2002-11-22 | Mitsubishi Electric Corp | Gas-insulated disconnecting switch |
| CN201820687U (en) * | 2010-06-17 | 2011-05-04 | 中国西电电气股份有限公司 | Movable-end air exhausting and baffling structure of self-extinguishing type circuit breaker |
| 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 |
| CN205335166U (en) * | 2015-12-11 | 2016-06-22 | 平高集团有限公司 | Tank type breaker and move end and keep off gas device thereof |
-
2015
- 2015-12-11 CN CN201510912809.6A patent/CN105448592B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002334637A (en) * | 2001-05-09 | 2002-11-22 | Mitsubishi Electric Corp | Gas-insulated disconnecting switch |
| CN201820687U (en) * | 2010-06-17 | 2011-05-04 | 中国西电电气股份有限公司 | Movable-end air exhausting and baffling structure of self-extinguishing type circuit breaker |
| 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 |
| CN205335166U (en) * | 2015-12-11 | 2016-06-22 | 平高集团有限公司 | Tank type breaker and move end and keep off gas device thereof |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109564836A (en) * | 2016-08-02 | 2019-04-02 | 西门子股份公司 | Breaker unit for power switch |
| US10685798B2 (en) | 2016-08-02 | 2020-06-16 | Siemens Aktiengesellschaft | Interrupter unit for a circuit breaker |
| CN109564836B (en) * | 2016-08-02 | 2020-07-03 | 西门子股份公司 | Circuit breaker unit for a circuit breaker |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105448592B (en) | 2018-09-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180914 Termination date: 20211211 |