CN215069792U - Solid-sealed polar pole - Google Patents
Solid-sealed polar pole Download PDFInfo
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- CN215069792U CN215069792U CN202022870146.5U CN202022870146U CN215069792U CN 215069792 U CN215069792 U CN 215069792U CN 202022870146 U CN202022870146 U CN 202022870146U CN 215069792 U CN215069792 U CN 215069792U
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- embedded pole
- solid
- pole
- contact seat
- arc extinguish
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Abstract
The utility model relates to the technical field of high-voltage switches, in particular to an embedded pole, which comprises an embedded pole upper part and an embedded pole lower part, an arc extinguish chamber, an insulating body, a high-voltage conductor and a contact seat, wherein the contact seat is arranged on the embedded pole upper part, a plurality of groups of first mounting nuts are arranged on the contact seat, the high-voltage conductor is arranged on the embedded pole upper part, the arc extinguish chamber is arranged in the insulating body and at the lower part of the embedded pole, the insulating body is made of epoxy resin, and the whole structure is cured through an epoxy resin automatic pressure gel forming process, so that the miniaturization purpose of a switch cabinet is achieved, the insulation outside the arc extinguish chamber is thoroughly free from the influence of external environment (dust, moisture and the like), the weather resistance is improved, the electric field distribution and the stress distribution are also optimized, the safety and the reliability of a circuit breaker are further improved, and the service life is longer, the maintenance-free pole is really realized, and the length of the ceramic part of the arc extinguish chamber accords with the miniaturization development direction of the switch.
Description
Technical Field
The utility model relates to a high tension switchgear technical field, concretely relates to seal component admittedly.
Background
In the prior art, in medium-voltage distribution networks, medium-voltage network switchgear, the external insulation medium mainly comprises air insulation, gas insulation and solid insulation. Air insulation is used as the cheapest insulation medium and is widely adopted all the time, and the switch has the characteristics of simple manufacture, low cost, convenient maintenance, simple operation and the like. The method is widely applied to non-key power supply places and substations with good ambient conditions. The main loop of the air insulation switch equipment comprises an isolation switch, a solid-sealed pole, a fuse and a grounding switch.
The solid-sealed pole is formed by embedding conductive parts related to the vacuum arc-extinguishing chamber and the circuit breaker into easily-cured insulating materials such as epoxy resin to form the pole, so that the whole circuit breaker pole is formed into an integral component.
In the prior art, an arc extinguish chamber is exposed in air, the outdoor insulation of the arc extinguish chamber is greatly influenced by the environment and is easy to have flashover, and the situation can be ensured only by the length of the arc extinguish chamber; secondly, the arc extinguish chamber can be supported only by external parts, and the number of the parts is large; moreover, the electric field structure is not uniform, and the maintenance-free requirement of the switch can not be met.
Therefore, how to further perfect and upgrade the structure of the solid-sealed pole is not beneficial to the long-term stable use of the medium-voltage distribution network medium-voltage network switch equipment, the maintenance of the switch equipment with a large amount of telephone charge time, and the requirement on space is high, and the miniaturization of the switch equipment is not beneficial.
SUMMERY OF THE UTILITY MODEL
The utility model provides a to prior art not enough, the utility model provides a have that the electrical property is good, the function is complete, simple to operate, the solid utmost point post that seals that the reliability is high.
In order to achieve the purpose, the utility model is realized by the following technical proposal:
the utility model provides an gu seal utmost point post, is including solid seal utmost point post upper portion and solid seal utmost point post lower part, its characterized in that: including explosion chamber, insulator, high-voltage conductor, contact seat, the contact seat sets up in solid utmost point post upper portion of sealing, is equipped with the first mounting nut of multiunit on the contact seat, the high-voltage conductor sets up in solid utmost point post upper portion of sealing, the explosion chamber sets up in insulator and in solid utmost point post lower part of sealing, the insulator material is epoxy to through epoxy automatic pressure gel forming technology solidification overall structure.
Furthermore, the solid-sealed polar pole comprises an incoming line end and an outgoing line end, the incoming line end is arranged in an arc extinguish chamber at the lower end of the solid-sealed polar pole and is connected with a cable or a fuse through a flexible connection, and the outgoing line end is arranged in a contact seat at the upper end of the solid-sealed polar pole and is connected with the contact seat, so that a complete outgoing line conductive loop is formed.
Furthermore, a fixing nut is further embedded in the lower portion of the solid-sealed pole, the arc extinguish chamber is connected with the fuse through the fixing nut, a conductive core rod is arranged at the wire inlet end and the wire outlet end, and the conductive core rod is made of copper materials. The solid-sealed polar pole further comprises a second mounting nut, the second mounting nut is arranged at the joint of the upper portion of the solid-sealed polar pole and the lower portion of the solid-sealed polar pole, the solid-sealed polar pole further comprises a shaft sleeve, the outer surface of the insulator body is subjected to sand blasting, and a zinc layer is plated on the outer surface of the insulator body.
The solid-sealed polar pole has the following advantages:
the outer insulation of the arc extinguish chamber is completely free from the influence of external environment (dust, moisture and the like), the weather resistance is improved, at the moment, the epoxy resin not only serves as the main insulation outside the arc extinguish chamber, but also provides mechanical support for the arc extinguish chamber, and the electric field distribution and the stress distribution of the epoxy resin are optimized accordingly. And because the pole is sealed, the arc extinguish chamber does not need additional fasteners, and the current-carrying piece is reliably fixed on the current-carrying piece by the surrounding casting resin, thereby greatly reducing the number of parts for fixing the arc extinguish chamber, reducing errors possibly occurring in the assembly process, further improving the safety and reliability of the circuit breaker, prolonging the service life and really realizing the maintenance-free of the pole. Because the arc extinguish chamber is fixedly sealed, the length of the ceramic part of the arc extinguish chamber can be shorter, the diameter of the ceramic part is smaller, and the ceramic part also accords with the miniaturization development direction of the switch.
Drawings
Fig. 1 is a sectional view of the embedded pole according to the embodiment of the present invention.
Fig. 2 is a first side view of the embedded pole according to the embodiment of the present invention.
Fig. 3 is a second side view of the embedded pole according to the embodiment of the present invention.
Fig. 4 is a bottom view of the embedded pole according to the embodiment of the present invention.
Description of reference numerals:
1. a nut is arranged on the contact seat; 2. a conductor; 3. solid-sealing the pole; 4. fixing a nut; 6. a shaft sleeve; 7. mounting a nut; 8. and (3) epoxy resin.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and examples.
In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "left", "right", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Referring to fig. 1-4, in the present embodiment, a solid-sealed polar pole 3 includes an upper portion of the solid-sealed polar pole 3 and a lower portion of the solid-sealed polar pole 3, and is characterized in that: including explosion chamber, insulator, high voltage conductor 2, contact seat, the contact seat sets up in 3 upper portions of solid utmost point post that seal, is equipped with the first mounting nut 7 of multiunit on the contact seat, high voltage conductor 2 sets up in 3 upper portions of solid utmost point post that seal, the explosion chamber sets up in insulator and in 3 lower parts of solid utmost point post that seal, the insulator material is epoxy 8 to through the solid overall structure of 8 automatic pressure gel forming process solidification of epoxy.
From the above description, it can be known that the mechanical properties can be obviously improved by forming the epoxy resin 8 into an integral structure through the automatic pressure gel forming process, and meanwhile, the precision of the forming through the epoxy resin 8 automatic pressure 5 gel forming process is higher, the dimensional accuracy of the insulating body can be improved, the cooperation with a mechanism and a box body is facilitated, the contact resistance is reduced, the interchangeability is high, the number of possible partial discharge nodes is small, the service life is long, the cost is low, the weight is light, the installation is labor-saving and convenient, and the requirement of an installer is low.
The solid-sealed polar pole 3 comprises an incoming line end and an outgoing line end, the incoming line end is arranged in an arc extinguish chamber at the lower end of the solid-sealed polar pole 3 and connected with a cable or a fuse through flexible connection, and the outgoing line end is arranged in a contact seat at the upper end of the solid-sealed polar pole 3 and connected with the contact seat to form a complete outgoing line conductive loop.
The lower part of the solid-sealed polar pole 3 is also embedded with a fixing nut 4, and the arc extinguish chamber is connected with the fuse through the fixing nut 4.
The wire inlet end and the wire outlet end are provided with conductive core rods, and the conductive core rods are made of copper materials.
The solid-sealed polar pole 3 further comprises a second mounting nut 7, and the second mounting nut 7 is arranged at the connecting position of the upper part of the solid-sealed polar pole 3 and the lower part of the solid-sealed polar pole 3.
The embedded pole 3 further comprises a shaft sleeve 6.
The outer surface of the insulating body is subjected to sand blasting treatment.
From the above description, it can be known that, through the sand blasting treatment, the surface of the insulator obtains certain cleanliness and different roughness due to the impact and cutting action of the abrasive on the surface of the insulator, so that the mechanical properties of the surface of the insulator are improved, thereby improving the fatigue resistance of the insulator, increasing the adhesion between the insulator and the coating, prolonging the durability of the coating, and being beneficial to the leveling and decoration of the coating.
And the outer surface of the insulator body is plated with a zinc layer.
From the above description, it can be seen that the zinc layer can be used as a shielding layer and can generate an induced signal, and the induced signal can be directly grounded or connected to a display or a controller.
The contact seat and the isolation switch form an isolation state and a conduction state; the contact seat mounting nut 1 is fixed on the metal frame through a bolt, the flexible connection and the movable end of the arc extinguish chamber are connected with each other and are fixed by the nut, the crank arm main shaft penetrates through the pin hole for positioning, and the arc extinguish chamber is communicated with the conductor 2.
The solid-sealed polar pole 3 only needs to fix 4 nuts, and is convenient and simple to mount. The epoxy resin automatic pressure gel forming (APG) process has enough mechanical strength. The size accuracy of the product is improved through the accurate size control of the die, the matching with a switch cabinet frame is facilitated, the contact resistance is reduced, and the interchangeability is improved. The whole scheme is equivalent to the original structure, and has the advantages of good electrical property, complete functions, convenient installation and high reliability.
The local discharge amount of the high-voltage conductor 2 to the ground (the mounting nut 7) is controlled in production, the electrical aging of the insulator is reduced, and the service life of the product is greatly prolonged.
The rated voltage of the bus sleeve is 12kV, the current value is 630A and 1250A, the scheme has a circuit breaker cabinet, a load switch cabinet and an isolation contact cabinet, and the power supply requirement of ring networks in cities, factories and the like is met.
Principle of operation
The installation nut 7 is fixed on the switch frame to form the functions of ground insulation and fixed support, the conductor 2 is connected with the isolation switch, the movable end of the arc extinguish chamber is connected with an outgoing cable or a fuse through flexible connection, and the contact seat is fixed on the position to be connected with the incoming line, so that a complete outgoing conductive loop is formed.
Because the surface of the arc extinguish chamber is covered with the epoxy resin to improve the surface insulation level, the purpose of miniaturization of the switch cabinet is achieved, the insulation outside the arc extinguish chamber is completely not influenced by the external environment (dust, moisture and the like), the weather resistance is improved, at the moment, the epoxy resin not only serves as the main insulation outside the arc extinguish chamber, but also provides mechanical support for the arc extinguish chamber, and the electric field distribution and the stress distribution of the arc extinguish chamber are optimized. The number of parts of the fixed arc extinguish chamber is greatly reduced, errors which possibly occur in the assembly process are reduced, so that the safety and reliability of the circuit breaker are further improved, the service life is longer, the maintenance-free pole is really realized, the arc extinguish chamber is fixedly sealed, the length of the ceramic part of the arc extinguish chamber can be shorter, the diameter is smaller, and the switch is also in accordance with the miniaturization development direction of the switch.
The above-mentioned embodiments are only used for illustrating the technical solution of the present invention, and not for limiting the same; although the present invention has been described in detail with reference to the foregoing embodiments, it should be understood by those skilled in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; these modifications and substitutions do not depart from the spirit and scope of the embodiments of the present invention, and therefore, all other embodiments obtained by those skilled in the art without any creative effort fall within the protection scope of the present invention.
Claims (8)
1. The utility model provides an gu seal utmost point post, is including solid seal utmost point post upper portion and solid seal utmost point post lower part, its characterized in that: including explosion chamber, insulator, high-voltage conductor, contact seat, the contact seat sets up in solid utmost point post upper portion of sealing, is equipped with the first mounting nut of multiunit on the contact seat, the high-voltage conductor sets up in solid utmost point post upper portion of sealing, the explosion chamber sets up in insulator and in solid utmost point post lower part of sealing, the insulator material is epoxy to through epoxy automatic pressure gel forming technology solidification overall structure.
2. The embedded pole according to claim 1, wherein the embedded pole comprises an incoming terminal and an outgoing terminal, the incoming terminal is arranged in an arc extinguish chamber at the lower end of the embedded pole and is connected with a cable or a fuse through a flexible connection, and the outgoing terminal is arranged in a contact seat at the upper end of the embedded pole and is connected with the contact seat to form a complete outgoing conductive loop.
3. The embedded pole of claim 1, wherein a fixing nut is further embedded in the lower portion of the embedded pole, and the arc extinguish chamber is connected with the fuse through the fixing nut.
4. The embedded pole of claim 2, wherein the wire inlet end and the wire outlet end are provided with conductive core rods, and the conductive core rods are made of copper.
5. The embedded pole of claim 1, further comprising a second mounting nut disposed at a connection between the upper portion of the embedded pole and the lower portion of the embedded pole.
6. The embedded pole of claim 1, further comprising a bushing.
7. The embedded pole of any one of claims 1 to 6, wherein the outer surface of the insulation body is sand blasted.
8. The embedded pole of any one of claims 1 to 6, wherein the outer surface of the insulation body is plated with a zinc layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022870146.5U CN215069792U (en) | 2020-12-04 | 2020-12-04 | Solid-sealed polar pole |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022870146.5U CN215069792U (en) | 2020-12-04 | 2020-12-04 | Solid-sealed polar pole |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215069792U true CN215069792U (en) | 2021-12-07 |
Family
ID=79161356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022870146.5U Active CN215069792U (en) | 2020-12-04 | 2020-12-04 | Solid-sealed polar pole |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215069792U (en) |
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2020
- 2020-12-04 CN CN202022870146.5U patent/CN215069792U/en active Active
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220117 Address after: 361100 third floor, No. 1 plant, No. 99, Tongsheng North 2nd Road, Xiangping street, Tong'an District, Xiamen City, Fujian Province Patentee after: Xiamen Huanyuan Power Technology Co.,Ltd. Address before: 361100 No.1 Factory building, No.99, Tongsheng North 2nd Road, Tong'an District, Xiamen City, Fujian Province Patentee before: XIAMEN HUANYUAN ELECTRIC POWER TECHNOLOGY Co.,Ltd. |