CN212113559U - Solid-sealed polar pole - Google Patents
Solid-sealed polar pole Download PDFInfo
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- CN212113559U CN212113559U CN202021261606.8U CN202021261606U CN212113559U CN 212113559 U CN212113559 U CN 212113559U CN 202021261606 U CN202021261606 U CN 202021261606U CN 212113559 U CN212113559 U CN 212113559U
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Abstract
The utility model relates to a solid-sealed polar pole, which comprises a polar pole body formed by pouring epoxy resin; the input bus, the first output bus, the second output bus and the vacuum arc-extinguishing chamber are integrally poured in the pole body; an isolation grounding switch installation cavity is formed in the pole body, and the output end of the input bus and the input end of the first output bus are both positioned on the inner side of the isolation grounding switch installation cavity; the output end of the input bus and the input end of the second output bus are positioned on the same side in the isolating and grounding switch installation cavity and are arranged in an up-down structure; the output end of the first output bus and the input end of the second output bus are respectively connected with the static contact and the moving contact of the vacuum arc-extinguishing chamber in a conduction mode. The solid-sealed polar pole is optimally designed again, and has the advantages of compact structure, small volume, reliable and convenient operation and high safety.
Description
Technical Field
The utility model relates to a looped netowrk switch field, concretely designs an gu seal utmost point post.
Background
The solid-sealed pole is formed by simultaneously embedding the vacuum arc-extinguishing chamber and the related conductive parts into easily-cured solid insulating materials such as epoxy resin, so that the whole pole of the circuit breaker becomes an integral part.
The existing solid-sealed pole is as published in Chinese patent literature with an authorization publication number CN104201041B, an authorization publication date 2015.10.21 and a patent name of 'combined solid-sealed pole and working principle thereof', and comprises the solid-sealed pole, a three-station isolation grounding switch and a vacuum arc extinguishing chamber assembly, wherein the three-station isolation grounding switch and the vacuum arc extinguishing chamber assembly are arranged in the solid-sealed pole, and a movable contact is driven by a lead screw to be sleeved among an outgoing line seat, a left static conductive seat, a right static conductive seat and a grounding seat in a reciprocating mode so as to realize three-station operation of a circuit breaker; in the solid-sealed polar pole, the movable contact sleeve is driven to move through the lead screw, so that the manufactured solid-sealed polar pole is relatively long (because the lead screw needs to be accommodated), the size is relatively large, the electric contact is unreliable, and when the power frequency withstand voltage is about 10kV, the local discharge value is relatively large and the service life is short.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: the defects of the prior art are overcome, and the solid-sealed polar pole is provided, so that the problems of large local discharge capacity, large volume and low power frequency withstand voltage of the conventional solid-sealed polar pole are solved.
The utility model provides a technical scheme that its technical problem adopted is:
an embedded pole comprises
The pole body is formed by pouring epoxy resin; and
the input bus, the first output bus, the second output bus and the vacuum arc-extinguishing chamber are integrally poured in the pole body; wherein the content of the first and second substances,
an isolation grounding switch installation cavity is formed in the pole body, and the output end of the input bus and the input end of the first output bus are both positioned on the inner side of the isolation grounding switch installation cavity;
the output end of the input bus and the input end of the second output bus are positioned on the same side in the isolating and grounding switch installation cavity and are arranged in an up-down structure;
and the output end of the first output bus is in conductive connection with a static contact of the vacuum arc-extinguishing chamber. And the input end of the second output bus is connected with a moving contact of the vacuum arc-extinguishing chamber through flexible connection.
Furthermore, a pull rod cavity for installing an insulating pull rod is formed in the pole body, and the pull rod cavity is located on one side of the moving contact of the vacuum arc extinguish chamber.
Further, the post body comprises a first cable cone, the input bus is located in the first cable cone, a first shielding net is arranged in the first cable cone, and the input bus penetrates through the first shielding net.
Furthermore, the inner side of the isolation grounding switch installation cavity is provided with a creepage slot which is positioned between the output end of the input bus and the input end of the first output bus.
Furthermore, a first voltage-sharing cover is arranged in the pole body and is arranged at the joint of the output end of the first output bus and the static contact of the vacuum arc-extinguishing chamber.
Furthermore, a second voltage-sharing cover is arranged in the pole body and is arranged at the joint of the input end of the second output bus and the moving contact of the vacuum arc-extinguishing chamber.
Further, a third voltage-sharing cover is arranged in the pole body and is arranged at a static contact of the vacuum arc-extinguishing chamber.
Furthermore, a second shielding net is arranged in the pole body and is located outside the second output bus.
Furthermore, two guide sliding grooves are formed in two sides of the isolation grounding switch installation cavity respectively.
Furthermore, a first stationary contact seat is installed at the output end of the input bus, and a second stationary contact seat is installed at the input end of the first output bus.
The utility model has the advantages that:
the utility model provides an gu seal utmost point post carries out optimization design again to gu sealing utmost point post, relies on shielding net and the pressure-equalizing cover of addding in utmost point post, makes its partial discharge condition obtain improving at work, obtains the partial discharge value and the withstand voltage value of ideal. The solid-sealed polar pole has compact structure, small volume, reliable and convenient operation and high safety.
Drawings
The present invention will be further explained with reference to the accompanying drawings.
FIG. 1 is a perspective view of a solid-sealed pole;
FIG. 2 is a half-sectional view of the embedded pole;
51, a pole body 521, an input bus 522, a first output bus 523, a second output bus 53, an isolation grounding switch installation cavity 531, a guide chute 532, a creepage slot 54, a pull rod cavity 541, an insulation pull rod 55, a first cable cone 56, a first shielding net 57, a first voltage-sharing cover 58 and a vacuum arc-extinguishing chamber; 59. the second voltage-sharing cover comprises a second voltage-sharing cover body 60, a second shielding net 61, a first static contact seat 62, a second static contact seat 63, a flexible connection 64 and a third voltage-sharing cover body.
Detailed Description
The invention will now be further described with reference to specific embodiments. The drawings are simplified schematic diagrams only illustrating the basic structure of the present invention in a schematic manner, and thus show only the components related to the present invention.
As shown in fig. 1 and fig. 2, an embedded pole comprises a pole body 51 formed by epoxy resin casting; the input bus 521, the first output bus 522, the second output bus 523 and the vacuum arc-extinguishing chamber 58 are integrally cast in the pole body 51; wherein the content of the first and second substances,
an isolation grounding switch installation cavity 53 is formed in the pole body 51, and the output end of the input bus 521 and the input end of the first output bus 522 are both positioned on the inner side of the isolation grounding switch installation cavity 53;
the output end of the input bus 521 and the input end of the second output bus 523 are located on the same side in the isolation grounding switch installation cavity 53 and are arranged in an up-down structure; the output end of the first output bus 522 is connected to the arc extinguishing static contact and the arc extinguishing moving contact of the vacuum arc extinguishing chamber 58. The input end of the second output bus 523 is connected to the arc extinguishing moving contact of the vacuum arc extinguishing chamber 58 through a flexible connection 63.
In this embodiment, the vacuum arc-extinguishing chamber 58 belongs to a mature product, and includes an arc-extinguishing static contact and an arc-extinguishing moving contact inside, and the arc-extinguishing static contact and the arc-extinguishing moving contact are respectively connected (conductively connected) to the first output bus 522 and the second output bus 523, so as to control on/off between the two output buses. The second output bus 523 is in conductive connection with the movable contact through a flexible connection 63.
Specifically, in this embodiment, a pull rod cavity 54 for installing the insulating pull rod 541 is formed in the pole body 51, and the pull rod cavity 54 is located on one side of the arc extinguishing moving contact of the vacuum arc extinguishing chamber 58. An insulating pull rod 541 is installed in the pull rod cavity 54, and the insulating pull rod 541 is connected with an arc extinguishing moving contact in the vacuum arc extinguishing chamber 58, so that the on-off between two output buses in the solid-sealed polar pole is controlled.
Specifically, in this embodiment, the pole body 51 includes a first cable cone 55, the input bus 521 is located in the first cable cone 55, a first shielding mesh 56 is disposed in the first cable cone 55, and the input bus 521 passes through the first shielding mesh 56. The first shielding mesh 56 is used to solve the problem of partial discharge of the input bus 521.
Specifically, in this embodiment, an creepage slot 532 is disposed inside the isolation earthing switch installation cavity 53, and the creepage slot 532 is located between the output end of the input bus 521 and the input end of the first output bus 522. The creepage slot 532 can increase creepage distance between the input bus 521 and the first output bus 522, and improve withstand voltage level.
Specifically, in this embodiment, a first voltage-sharing cover 57 is disposed in the pole body 51, and the first voltage-sharing cover 57 is disposed at a connection between an output end of the first output bus 522 and an arc-extinguishing static contact of the vacuum arc-extinguishing chamber 58. The first voltage-sharing cover 57 covers the tip of the connection position of the first output bus 522 and the arc extinguishing static contact, and the first voltage-sharing cover 57 is of a spherical structure, so that partial discharge is effectively avoided, and the voltage withstanding value is improved.
Specifically, in this embodiment, a second voltage-sharing cover 59 is disposed in the pole body, and the second voltage-sharing cover 59 is disposed at a connection between an input end of the second output bus and a moving contact of the vacuum interrupter. The second voltage-sharing cover 59 is used for improving the voltage resistance of the connection between the input end of the second output bus and the movable contact of the vacuum arc-extinguishing chamber and reducing the problem of partial discharge.
Specifically, in this embodiment, a third voltage-sharing cover 64 is disposed in the pole body, and the third voltage-sharing cover 64 is disposed at an arc-extinguishing static contact of the vacuum arc-extinguishing chamber. The third voltage-sharing cover 64 is used for improving the voltage resistance of the vacuum arc-extinguishing chamber and solving the problem of partial discharge.
Specifically, in this embodiment, a second shielding net 60 is disposed in the pole body 51, and the second shielding net 60 is located outside the second output bus. The second shielding mesh 60 is used to solve the problem of partial discharge of the second output bus 523.
Specifically, in this embodiment, two guide chutes 531 are respectively disposed on two sides of the isolation ground switch installation cavity 53. The guide chute 531 plays a role in guiding, an isolation movable contact base is required to be movably arranged in the isolation grounding switch installation cavity 53 to conduct the input bus 521 and the first output bus 522, a sliding block is arranged on the isolation movable contact base, and the sliding block is matched with the guide chute 531, so that the isolation movable contact base can move more stably in the isolation grounding switch installation cavity 53.
Specifically, in this embodiment, the output end of the input bus is mounted with a first stationary contact seat 61, and the input end of the first output bus is mounted with a second stationary contact seat 62. The first stationary contact seat 61 and the second stationary contact seat 62 are cylindrical, and the stationary contact seats are fixed on the bus through screws. The isolating ground switch mounting cavity 53 is provided with an isolating movable contact base moving back and forth, when the upper end and the lower end of the isolating movable contact base are respectively connected with two fixed contact bases in a conducting manner, the conducting connection between the input bus 521 and the first output bus 522 is realized, so that the isolating switch is switched on, otherwise, the isolating movable contact base moves outwards, and the isolating switch enters the switching-off state. The grounding rod moves to be connected with the second stationary contact seat 62 on the first output bus 522 in a guiding mode, and grounding of the isolating switch is achieved.
The utility model provides a solid-sealed polar pole which is formed by pouring epoxy resin; the structural mode that keeps apart movable contact seat, earthing rod carry out separating brake, combined floodgate, ground connection in sealing the utmost point post admittedly is changed, redesign has optimized the structure that seals the utmost point post admittedly, makes the volume of sealing the utmost point post in isolation switch littleer, and the partial discharge value is littleer, the withstand voltage value is higher, security, stability during the operation are higher.
In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (10)
1. An embedded pole is characterized by comprising
The pole body is formed by pouring epoxy resin; and
the input bus, the first output bus, the second output bus and the vacuum arc-extinguishing chamber are integrally poured in the pole body; wherein the content of the first and second substances,
an isolation grounding switch installation cavity is formed in the pole body, and the output end of the input bus and the input end of the first output bus are both positioned on the inner side of the isolation grounding switch installation cavity;
the output end of the input bus and the input end of the second output bus are positioned on the same side in the isolating and grounding switch installation cavity and are arranged in an up-down structure;
the output end of the first output bus and the input end of the second output bus are respectively connected with the static contact and the moving contact of the vacuum arc-extinguishing chamber in a conduction mode.
2. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
a pull rod cavity for installing an insulating pull rod is formed in the pole body, and the pull rod cavity is located on one side of a moving contact of the vacuum arc extinguish chamber.
3. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
the pole body comprises a first cable cone, the input bus is located in the first cable cone, a first shielding net is arranged in the first cable cone, and the input bus penetrates through the first shielding net.
4. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
the inner side of the isolation grounding switch installation cavity is provided with a creepage slot which is positioned between the output end of the input bus and the input end of the first output bus.
5. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
a first voltage-sharing cover is arranged in the pole body and is arranged at the joint of the output end of the first output bus and a static contact of the vacuum arc-extinguishing chamber.
6. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
and a second voltage-sharing cover is arranged in the pole body and is arranged at the joint of the input end of the second output bus and the moving contact of the vacuum arc-extinguishing chamber.
7. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
a third voltage-sharing cover is arranged in the pole body and is arranged at a static contact of the vacuum arc-extinguishing chamber.
8. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
a second shielding net is arranged in the pole body and located outside the second output bus.
9. The embedded pole of claim 1, wherein the embedded pole is a hollow pole,
two guide sliding grooves are formed in the two sides of the isolation grounding switch installation cavity respectively.
10. The embedded pole of claim 1, wherein the output end of the first output bus bar is provided with a first static contact seat, and the input end of the second output bus bar is provided with a second static contact seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021261606.8U CN212113559U (en) | 2020-07-01 | 2020-07-01 | Solid-sealed polar pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021261606.8U CN212113559U (en) | 2020-07-01 | 2020-07-01 | Solid-sealed polar pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212113559U true CN212113559U (en) | 2020-12-08 |
Family
ID=73628904
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021261606.8U Active CN212113559U (en) | 2020-07-01 | 2020-07-01 | Solid-sealed polar pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212113559U (en) |
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2020
- 2020-07-01 CN CN202021261606.8U patent/CN212113559U/en active Active
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Jiangsu Luoyun Power Technology Co., Ltd., No. 71, Tangshu village, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee after: Jiangsu Luokai Intelligent Technology Co.,Ltd. Address before: Jiangsu Luoyun Power Technology Co., Ltd., No. 71, Tangshu village, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee before: JIANGSU ROLINK ELECTRICITY Co.,Ltd. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20230515 Address after: 213000 No. 101 Yonganli Road, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province Patentee after: JIANGSU LUOKAI MECHANICAL & ELECTRICAL Co.,Ltd. Address before: Jiangsu Luoyun Power Technology Co., Ltd., No. 71, Tangshu village, Luoyang Town, Wujin District, Changzhou City, Jiangsu Province, 213000 Patentee before: Jiangsu Luokai Intelligent Technology Co.,Ltd. |
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| TR01 | Transfer of patent right |