CN202094044U - Static piece for vacuum tube in vacuum circuit breaker and vacuum tube employing same - Google Patents
Static piece for vacuum tube in vacuum circuit breaker and vacuum tube employing same Download PDFInfo
- Publication number
- CN202094044U CN202094044U CN2011201800932U CN201120180093U CN202094044U CN 202094044 U CN202094044 U CN 202094044U CN 2011201800932 U CN2011201800932 U CN 2011201800932U CN 201120180093 U CN201120180093 U CN 201120180093U CN 202094044 U CN202094044 U CN 202094044U
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- Prior art keywords
- quiet
- vacuum tube
- cover plate
- vacuum
- radome
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- Expired - Fee Related
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The utility model provides a static piece for a vacuum tube in a vacuum circuit breaker. The static piece comprises a static cover plate and a shielding case which adopt an integrated structure. In the utility model, as the static cover plate in the vacuum tube of the vacuum circuit breaker is integrated with the shielding case, both the leak tightness and the precision of the vacuum tube are improved, the product quality is improved and the manufacturing cost is lowered while the welding technology and the assembly process are reduced.
Description
Technical field
The utility model relates to accessory that a kind of vacuum circuit-breaker vacuum tube uses and the vacuum tube that is provided with this accessory.Vacuum tube is used in specifically a kind of vacuum circuit-breaker quiet.
Background technology
Utilize vacuum to be called vacuum circuit-breaker as the circuit breaker of insulation and arc-extinguishing medium between contact; it plays control, protection, safety isolation in electric power system; breaking capacity is strong because its circuit breaker than other form has, not oxidation of contact, electric arc does not expose, volume is little, in light weight, safe and reliable advantage, and therefore the application in power distribution network is comparatively general.An important components in the vacuum circuit-breaker is a vacuum tube, design has vacuum interrupter in the described vacuum tube, vacuum tube of the prior art as shown in Figure 1, described vacuum tube comprises insulation crust 6, is arranged on the quiet cover plate 10 at two ends, inner parts such as moving contact 9, fixed contact 8, radome 20 and bellows 7.
Above-mentioned vacuum tube of the prior art, its quiet cover plate 10 and radome 20 are that branch is body formed, and the two is an one by welding forming afterwards, and the effect that improves electric field, improves make-break capacity has effectively been played in being provided with of wherein said radome.But find through long-term practice, above-mentioned vacuum tube of the prior art exists following defective: at first, if welding is improper between quiet cover plate 10 and the radome 20, main product leaks gas easily in the welding position, will directly have influence on the breaking capacity and the useful life of vacuum circuit-breaker; Moreover, because described quiet cover plate 10 and radome 20 split settings make that the assembling of vacuum tube is loaded down with trivial details, complex process, production cost height.
Summary of the invention
In order to solve vacuum tube of the prior art because described quiet cover plate and radome are that branch is body formed, and the main product that causes leaks gas, assembles the problem loaded down with trivial details, that production cost is high easily in the welding position.The utility model proposes quiet that a kind of integrated vacuum tube uses and have this vacuum tube of quiet.
The utility model is achieved through the following technical solutions:
Vacuum tube is used in a kind of vacuum circuit-breaker quiet, comprise quiet cover plate and radome, the structure that described quiet cover plate and described radome are formed in one.
The main body of described radome is cylindrical.
The main body of described radome is also extended and is provided with cylindrical reducing section, and the diameter of described cylindrical reducing section is less than the diameter of described cylinder-shaped body.
Described cylindrical reducing section from described cylindrical reducing section near described main body one end to away from an end equal diameters of described main body.
Described quiet also comprises quiet bar, the structure that described quiet bar and described quiet cover plate are formed in one.
Be provided with recess in described quiet cover plate central authorities, described quiet bar runs through the recess setting of described quiet cover plate, and is positioned at the center of described recess.
Described quiet bar is the cylinder bodily form.
A kind of have a described quiet vacuum tube, on the main body of described radome and the changeover portion between the described cylindrical reducing section, be sealed and installed with earthenware, the other end that described earthenware is relative with described quiet cover plate is a blind end, and the center of described blind end is provided with moving bar.
Technique scheme of the present utility model has the following advantages compared to existing technology:
(1) in quiet of the present invention, the structure that described quiet cover plate and described radome are formed in one.Thereby avoided the vacuum tube that causes because of the welding phenomenon of gas leakage easily, effectively improved sealing and the precision of described vacuum tube.Simultaneously, described quiet one-time formed structure simplified production technology, makes the vacuum tube assembling simple, prolonged the useful life of vacuum circuit-breaker simultaneously, effectively reduces production cost.
(2) in quiet of the present invention, described quiet bar and quiet cover plate in the also described quiet cover plate are set to integrated structure, avoided the vacuum tube that causes because of the welding phenomenon of gas leakage easily equally, and it is simple to have an assembling, simplifies the effect of production technology.
(3) in quiet of the present invention, also extend with the main body of described radome and to be provided with cylindrical reducing section, the diameter of described cylindrical reducing section is less than the diameter of described cylinder-shaped body.In described vacuum circuit-breaker, described cylindrical reducing section is used for the earthenware interface is positioned, described earthenware is fixed on the changeover portion between described cylindrical reducing section and the cylinder-shaped body, thereby play arc extinguishing better and improve effect of electric field, improve the energy cutting capacity of described circuit breaker.
Description of drawings
For the easier quilt of content of the present utility model is clearly understood, according to specific embodiment of the utility model also in conjunction with the accompanying drawings, the utility model is described in further detail, wherein below
Fig. 1 is the cross section structure schematic diagram of vacuum tube of the prior art;
Fig. 2 is a cross section structure schematic diagram described in the utility model quiet;
Fig. 3 is to use the cross section structure schematic diagram of vacuum tube described in the utility model quiet;
Reference numeral is expressed as among the figure: the quiet cover plate of 1-, and the 2-radome, the quiet cover plate of 10-, the 20-radome, 3-reducing section, the quiet bar of 4-, the 5-recess, the 6-insulation crust, 7 bellowss, the 8-fixed contact, the 9-moving contact, the 12-earthenware, 13-moves bar, 14-blind end, 15-changeover portion.
Embodiment
Embodiment
In the described a kind of vacuum circuit-breaker of present embodiment quiet of vacuum tube, as shown in Figure 2, comprise quiet cover plate 1 and radome 2, the structure that described quiet cover plate 1 and described radome 2 are formed in one, the main body of described radome 2 is cylindrical, also be connected with cylindrical reducing section 3 with the main body of described radome 2, the diameter of described cylindrical reducing section 3 is less than described cylinder-shaped body, and from described cylindrical reducing section 3 near described main body one ends to an end equal diameters away from described main body.
Described quiet of present embodiment, be provided with tubular quiet bar 4 in the grafting of the center of described quiet cover plate 1, described quiet bar 4 is fixedlyed connected with described quiet cover plate 1, be provided with recess 5 in described quiet cover plate 1 central authorities, the recess 5 that described quiet bar 4 runs through described quiet cover plate 1 is provided with, and is positioned at the center of described recess 5.Quiet bar 4 is formed in one with described quiet cover plate 1 described in the utility model, and as selectable execution mode, described quiet bar 4 also can use the mode of pegging graft or welding to be tightly connected with described quiet cover plate 1.
Use described quiet the vacuum tube of present embodiment as shown in Figure 3, in the described vacuum circuit-breaker, on the main body of described radome 2 and the changeover portion 15 between the described cylindrical reducing section 3, be sealed and installed with earthenware 12.Described earthenware 12 has played arc extinguishing and has improved effect of electric field.Described reducing section 3 and described quiet cover plate 1 a relative other end is a blind end 14, is provided with moving bar 13 at the center of described blind end 14.Certainly, as selectable execution mode, the radome described in the present embodiment also can not established reducing section 3.
Quiet of the present utility model, the structure that its quiet cover plate and radome are formed in one has just been saved the step of plug-in mounting, welding like this in preparation process, makes the firm and assembling of this quiet structure simply.Simultaneously, also strengthen the sealing and the precision of vacuum tube, effectively reduced production cost, had higher economic benefit.
Certainly, quiet described in the utility model is except being used for vacuum circuit-breaker, because structural similarity, the operation principle of vacuum contactor and vacuum circuit-breaker are identical, in quiet the vacuum tube that can be applied to equally in the vacuum contactor of the present utility model.
Obviously, the foregoing description only is for example clearly is described, and is not the qualification to execution mode.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And conspicuous variation of being extended out thus or change still are in the protection range of the invention.
Claims (8)
1. a vacuum circuit-breaker vacuum tube comprises quiet cover plate (1) and radome (2) with quiet, it is characterized in that the structure that described quiet cover plate (1) and described radome (2) are formed in one.
2. quiet according to claim 1, it is characterized in that the main body of described radome (2) is cylindrical.
3. quiet according to claim 2, it is characterized in that the main body of described radome (2) is also extended and is provided with cylindrical reducing section (3), the diameter of described cylindrical reducing section (3) is less than the diameter of described cylinder-shaped body.
4. quiet according to claim 3, it is characterized in that, described cylindrical reducing section (3) from described cylindrical reducing section (3) near described main body one end to away from an end equal diameters of described main body.
5. according to claim 1 or 2 or 3 described quiet, it is characterized in that described quiet also comprises quiet bar (4), the structure that described quiet bar (4) and described quiet cover plate (1) are formed in one.
6. quiet according to claim 4, it is characterized in that central authorities are provided with recess (5) at described quiet cover plate (1), the recess (5) that described quiet bar (4) runs through described quiet cover plate (1) is provided with, and is positioned at the center of described recess (5).
7. quiet according to claim 5, it is characterized in that described quiet bar (4) is the cylinder bodily form.
8. one kind has described quiet the vacuum tube of claim 1-8, it is characterized in that, on the main body of described radome (2) and the changeover portion (15) between the described cylindrical reducing section (3), be sealed and installed with earthenware (12), the other end that described earthenware (12) is relative with described quiet cover plate (1) is blind end (14), and the center of described blind end (14) is provided with moving bar (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201800932U CN202094044U (en) | 2011-05-31 | 2011-05-31 | Static piece for vacuum tube in vacuum circuit breaker and vacuum tube employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201800932U CN202094044U (en) | 2011-05-31 | 2011-05-31 | Static piece for vacuum tube in vacuum circuit breaker and vacuum tube employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202094044U true CN202094044U (en) | 2011-12-28 |
Family
ID=45369094
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201800932U Expired - Fee Related CN202094044U (en) | 2011-05-31 | 2011-05-31 | Static piece for vacuum tube in vacuum circuit breaker and vacuum tube employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202094044U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342310A (en) * | 2020-02-19 | 2020-06-26 | 平高集团有限公司 | Electric connection structure and connector thereof |
-
2011
- 2011-05-31 CN CN2011201800932U patent/CN202094044U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111342310A (en) * | 2020-02-19 | 2020-06-26 | 平高集团有限公司 | Electric connection structure and connector thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111228 Termination date: 20130531 |