CN212934478U - Reinforced conductive rod for vacuum arc extinguish chamber - Google Patents
Reinforced conductive rod for vacuum arc extinguish chamber Download PDFInfo
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- CN212934478U CN212934478U CN202022184656.7U CN202022184656U CN212934478U CN 212934478 U CN212934478 U CN 212934478U CN 202022184656 U CN202022184656 U CN 202022184656U CN 212934478 U CN212934478 U CN 212934478U
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- conducting rod
- vacuum
- reinforced
- conductive copper
- vacuum arc
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Abstract
The utility model relates to a vacuum switch equipment technical field, concretely relates to strenghthened type conducting rod for vacuum interrupter. This strenghthened type conducting rod for vacuum interrupter is including running through the enhancement dabber of the coaxial setting of conductive copper sheathing with conductive copper sheathing, strengthens adopting vacuum fusion casting technique fixed connection between dabber and the conductive copper sheathing, provides a simple structure, and reasonable in design guarantees that the conducting rod keeps good intensity strenghthened type conducting rod for vacuum interrupter.
Description
Technical Field
The utility model relates to a vacuum switch equipment technical field, concretely relates to strenghthened type conducting rod for vacuum interrupter.
Background
The vacuum switch is an electrical device for controlling and protecting a circuit of a power system, and the vacuum arc-extinguishing chamber is a core component of the vacuum switch, and can quickly extinguish electric arcs after the vacuum switch is opened through excellent internal insulating property and arc-extinguishing capacity, so that opening operation is realized, and a fault circuit is disconnected.
The conducting rod of the vacuum interrupter, as part of the conducting circuit of the vacuum interrupter, is required to have not only good conducting ability but also sufficient mechanical properties. The impact of the contacts of the vacuum arc-extinguishing chamber during closing generates great force on the conducting rod, the conducting rod is roughly shortened due to balanced contact impact, and the conducting rod is bent due to unbalanced contact impact. The conducting rod with large length is particularly sensitive to contact impact, the conducting rod can be switched on incompletely after being shortened roughly, the contact surface of the switching-on contact can be reduced sharply due to bending, and the function of the vacuum arc extinguish chamber is lost when the contact is serious.
At present, an improved scheme on the basis of a traditional conducting rod for a vacuum arc-extinguishing chamber is that a steel core is inserted into a central blind hole of a copper conducting rod, and the strength of the whole conducting rod is enhanced by the aid of the strength of steel which is much higher than that of copper. The problems with this solution are: 1. the steel core and the blind hole of the copper conducting rod are in clearance fit so as to facilitate assembly, so that the steel core has no obvious effect before the impact force deforms the copper to fill the clearance; 2. high temperature when brazing the vacuum arc-extinguishing chamber has an annealing effect on the steel core, and the strength of the steel core is reduced.
SUMMERY OF THE UTILITY MODEL
The to-be-solved technical problem of the utility model is: overcome prior art's not enough, provide a simple structure, reasonable in design guarantees that the conducting rod keeps good intensity strenghthened type conducting rod for vacuum interrupter.
The utility model discloses a solve the technical scheme that its technical problem adopted and do: the reinforced conductive rod for the vacuum arc extinguish chamber comprises a reinforcing mandrel which penetrates through a conductive copper sleeve and is coaxially arranged with the conductive copper sleeve, and the reinforcing mandrel is fixedly connected with the conductive copper sleeve by adopting a vacuum casting technology.
The conductive copper sleeve is made of pure copper material. Providing good electrical conductivity.
The reinforcing mandrel is made of an alloy material. Has the characteristics of high temperature resistance and high strength, and can still maintain enough strength after high temperature.
And the reinforcing mandrel and the conductive copper sleeve are connected by casting pure copper by adopting a vacuum casting technology. Realize between electrically conductive copper sheathing and the enhancement dabber tight connection seamless.
The outer wall surface of the reinforcing mandrel is concave-convex. Used for ensuring the adhesion effect of the conductive copper sleeve.
And a thread groove is formed in the outer wall of the reinforcing mandrel. Further increasing the adhesion effect of the conductive copper sheath.
And a threaded hole is formed above the reinforcing mandrel. And the connecting and fixing are realized through threaded holes.
Compared with the prior art, the utility model discloses following beneficial effect has:
the utility model provides a strenghthened type conducting rod for vacuum interrupter solves current vacuum interrupter when closing a floodgate, because high-speed striking leads to the conducting rod to shorten and crooked to influence the problem in vacuum interrupter performance and life-span. The conducting rod can always keep good strength, and the requirements of the vacuum arc extinguish chamber are met.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. a conductive copper sleeve; 2. a reinforcing mandrel; 3. a threaded bore.
Detailed Description
The embodiments of the present invention will be further described with reference to the accompanying drawings:
examples
As shown in fig. 1, the copper sleeve comprises a reinforcing mandrel 2 which penetrates through a conductive copper sleeve 1 and is coaxially arranged with the conductive copper sleeve 1, and the reinforcing mandrel 2 is fixedly connected with the conductive copper sleeve 1 by adopting a vacuum casting technology.
The conductive copper bush 1 is made of pure copper material. Providing good electrical conductivity.
The reinforcing mandrel 2 is made of an alloy material. Has the characteristics of high temperature resistance and high strength, and can still maintain enough strength after high temperature.
The reinforcing mandrel 2 and the conductive copper sleeve 1 are connected by casting pure copper by adopting a vacuum casting technology. Realize the tight connection between the conductive copper bush 1 and the reinforcing mandrel 2 without gap.
The outer wall surface of the reinforcing mandrel 2 is concave-convex. For ensuring the adhesion effect of the conductive copper bush 1.
The outer wall of the reinforcing mandrel 2 is provided with a thread groove. Further increasing the adhesion effect of the conductive copper bush 1.
A threaded hole 3 is arranged above the reinforcing mandrel 2. The connection and fixation are performed through the threaded hole 3.
Claims (7)
1. The utility model provides a strenghthened type conducting rod for vacuum interrupter which characterized in that, including run through electrically conductive copper sheathing (1) and electrically conductive copper sheathing (1) coaxial setting strengthen dabber (2), strengthen dabber (2) with adopt vacuum fusion casting technique fixed connection between electrically conductive copper sheathing (1).
2. The reinforced conducting rod for the vacuum arc-extinguishing chamber according to claim 1, characterized in that the conducting copper sleeve (1) is made of pure copper material.
3. Reinforced conducting rod for vacuum interrupters according to claim 1 characterized in that the reinforcing mandrel (2) is made of alloy material.
4. The reinforced conducting rod for the vacuum arc-extinguishing chamber is characterized in that the reinforced core shaft (2) and the conductive copper sleeve (1) are connected by casting pure copper by adopting a vacuum casting technology.
5. The reinforced conducting rod for the vacuum arc-extinguishing chamber is characterized in that the surface of the outer wall of the reinforced mandrel (2) is concave-convex.
6. The reinforced conducting rod for the vacuum arc-extinguishing chamber is characterized in that a threaded groove is arranged on the outer wall of the reinforcing mandrel (2).
7. The reinforced conducting rod for the vacuum arc extinguish chamber according to claim 1, wherein a threaded hole (3) is formed above the reinforcing mandrel (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022184656.7U CN212934478U (en) | 2020-09-29 | 2020-09-29 | Reinforced conductive rod for vacuum arc extinguish chamber |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022184656.7U CN212934478U (en) | 2020-09-29 | 2020-09-29 | Reinforced conductive rod for vacuum arc extinguish chamber |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212934478U true CN212934478U (en) | 2021-04-09 |
Family
ID=75312087
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022184656.7U Active CN212934478U (en) | 2020-09-29 | 2020-09-29 | Reinforced conductive rod for vacuum arc extinguish chamber |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212934478U (en) |
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2020
- 2020-09-29 CN CN202022184656.7U patent/CN212934478U/en active Active
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