CN219917007U - Vacuum arc-extinguishing chamber assembly without installing protective cover - Google Patents
Vacuum arc-extinguishing chamber assembly without installing protective cover Download PDFInfo
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- CN219917007U CN219917007U CN202320194569.0U CN202320194569U CN219917007U CN 219917007 U CN219917007 U CN 219917007U CN 202320194569 U CN202320194569 U CN 202320194569U CN 219917007 U CN219917007 U CN 219917007U
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- vacuum interrupter
- cavity
- connecting end
- protective cover
- interrupter assembly
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- 230000001681 protective effect Effects 0.000 title claims abstract description 41
- 238000003780 insertion Methods 0.000 claims abstract description 11
- 230000037431 insertion Effects 0.000 claims abstract description 11
- 230000002093 peripheral effect Effects 0.000 claims 1
- 239000002184 metal Substances 0.000 abstract description 20
- 238000005260 corrosion Methods 0.000 abstract description 8
- 230000007797 corrosion Effects 0.000 abstract description 8
- 238000004519 manufacturing process Methods 0.000 description 13
- 239000007788 liquid Substances 0.000 description 5
- 230000009286 beneficial effect Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 3
- 238000004891 communication Methods 0.000 description 2
- 238000005219 brazing Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
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- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
Abstract
The present utility model relates to the field of vacuum interrupters, and more particularly to a vacuum interrupter assembly without a protective cover, wherein the vacuum interrupter assembly without a protective cover comprises: the movable rod assembly comprises a movable rod and an annular stop block, the movable rod is provided with a third connecting end and a fourth connecting end, the third connecting end is connected with the fourth connecting end, one side of the annular stop block is provided with a round groove, the bottom wall forming the round groove is provided with an insertion hole, and one end of the third connecting end penetrates through one side, close to the third connecting end, of the fourth connecting end of the insertion hole and is fixedly connected with the wall surface forming the round groove; and the shell is provided with a first cavity, the moving rod is arranged in the first cavity, the wall surface forming the first cavity is provided with an annular lug, and the annular stop block is positioned on the upper side of the annular lug. The corrugated pipe provided by the utility model can realize the advantages of simplicity in processing, less influence of high-temperature metal vapor corrosion on the corrugated pipe and high practicability by effectively utilizing the self structural configuration.
Description
Technical Field
The utility model relates to the field of vacuum arc-extinguishing chambers, in particular to a vacuum arc-extinguishing chamber assembly without a protective cover.
Background
The existing vacuum arc-extinguishing chambers have different dimensions and long ends, and when the vacuum arc-extinguishing chambers with shorter dimensions are required to be applied, one end of a corrugated pipe of each vacuum arc-extinguishing chamber is close to or placed in a shielding cylinder due to the limitation of the dimensions, wherein a person skilled in the art should understand that a large amount of high-temperature metal vapor is generated when a moving contact and a fixed contact are disconnected, and if the corrugated pipe is too close to the shielding cylinder, a protective cover is required to be additionally arranged at the end part of the corrugated pipe so as to prevent the corrugated pipe from being corroded by the high-temperature metal vapor, thereby reducing the service life of the corrugated pipe. When a vacuum interrupter with a long size needs to be used, the existing vacuum interrupter is usually provided with a protective cover to protect the corrugated tube, but this increases the manufacturing cost. Therefore, in order to improve market competitiveness, a vacuum arc-extinguishing chamber assembly without installing a protective cover is required to be designed, so that when the corrugated pipe is positioned on the upper side of the shielding cover, the corrugated pipe is less influenced by high-temperature metal vapor corrosion and can be normally used within a preset period, and therefore the shielding cover is not required to be installed, and the production cost is reduced.
There is therefore a need to provide a vacuum interrupter assembly that is simple to manufacture, less susceptible to high temperature metal vapor corrosion of the bellows, and highly practical without the need for a protective cover.
Disclosure of Invention
The utility model mainly aims to provide a vacuum arc-extinguishing chamber assembly without installing a protective cover, wherein the vacuum arc-extinguishing chamber assembly without installing the protective cover can effectively utilize the self structural configuration of the vacuum arc-extinguishing chamber assembly to realize the advantages of simple processing and less influence of high-temperature metal vapor corrosion on a corrugated pipe.
Another object of the present utility model is to provide a vacuum interrupter assembly without installing a protection cover, wherein the vacuum interrupter assembly without installing a protection cover includes a movable rod assembly, a housing and a bellows, the housing has a first cavity, the movable rod assembly is disposed in the first cavity, the movable rod assembly includes a movable rod, a middle section of the movable rod has a ring-shaped stopper, the bellows is connected with the movable rod in a sleeved manner and is fixedly connected with the ring-shaped stopper, and the ring-shaped stopper is spaced from a wall surface forming the first cavity by a predetermined distance, wherein the ring-shaped stopper is configured to block metal vapor or liquid drops generated when the vacuum interrupter is disconnected, thereby ensuring normal use of the bellows within a predetermined time.
Another object of the present utility model is to provide a vacuum interrupter assembly without a protective cover, wherein the vacuum interrupter assembly without a protective cover comprises
The utility model further aims to provide a vacuum arc-extinguishing chamber assembly without installing a protective cover, wherein the vacuum arc-extinguishing chamber assembly without installing the protective cover has a simple structure, is convenient to operate, does not relate to complex manufacturing process and expensive materials, has higher economy, and is easy to popularize and use.
In order to achieve at least one of the above objects, the present utility model provides a vacuum interrupter assembly without a protective cover, wherein the vacuum interrupter assembly without a protective cover comprises:
the movable rod assembly comprises a movable rod and an annular stop block, the movable rod is provided with a third connecting end and a fourth connecting end, the third connecting end is connected with the fourth connecting end, one side of the annular stop block is provided with a round groove, the bottom wall forming the round groove is provided with an insertion hole, one end of the third connecting end penetrates through the insertion hole, and one side, close to the third connecting end, of the fourth connecting end is fixedly connected with the wall forming the round groove; and
the movable rod is arranged in the first cavity, an annular lug is arranged on the wall surface forming the first cavity, and the annular stop block is arranged on the upper side of the annular lug.
In one or more embodiments of the present utility model, the vacuum interrupter assembly without a protective cover further includes a shield canister mated with the annular projection.
In one or more embodiments of the present utility model, the vacuum interrupter assembly without a protective cover further includes a bellows, one end of the bellows is disposed in the first cavity, and the bellows is sleeved on the fourth connection end and is fixedly connected to a bottom wall forming the circular groove.
In one or more embodiments of the present utility model, a side of the annular bump, which is close to the bellows, has an abutment surface, the shielding cylinder has a first connection end, an abutment end and a second connection end, two ends of the abutment end are respectively connected to the first connection end and the second connection end, the first connection end is located at a side of the annular bump, which is away from the first cavity, and is spaced a predetermined distance, the abutment end is fixedly connected to the abutment surface, so as to define a position of the shielding cylinder, and the second extension end extends a predetermined distance in a direction away from the abutment end and is close to an end of the housing.
In one or more embodiments of the present utility model, the shielding cylinder further has a first opening and a second opening, where the first opening and the second opening are both in communication with the second cavity, and the first opening is located at an end of the first connection end facing away from the abutting end, the second opening is located at an end of the second connection end facing away from the abutting end, and a size of the first opening is smaller than a size of the second opening.
In one or more embodiments of the utility model, the annular stop has a circular cross-section, and the cross-sectional dimension of the annular stop corresponds to the largest cross-sectional dimension of the first connecting end.
In one or more embodiments of the utility model, the maximum cross-sectional dimension of the bellows is smaller than the cross-sectional dimension of the annular stop, and further the gap between the annular stop and the wall forming the first cavity is 0.5-0.8mm.
In one or more embodiments of the present utility model, the wall surface forming the circular groove further has a plurality of first assembling grooves, the plurality of first assembling grooves are located at the periphery of the insertion hole, an elastic member is further disposed in each of the first assembling grooves, and one end of the plurality of elastic members facing away from the circular groove abuts against one side of the bellows close to the annular stop block.
Drawings
These and/or other aspects and advantages of the present utility model will become more apparent and more readily appreciated from the following detailed description of the embodiments of the utility model, taken in conjunction with the accompanying drawings, wherein:
fig. 1 illustrates a schematic structural view of a vacuum interrupter assembly without a protective cover.
FIG. 2 illustrates an enlarged view of A in FIG. 1
Fig. 3 illustrates an enlarged view of B in fig. 1.
Detailed Description
The terms and words used in the following description and claims are not limited to literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the utility model. It will be apparent to those skilled in the art, therefore, that the following description of the various embodiments of the utility model is provided for illustration only and not for the purpose of limiting the utility model as defined by the appended claims and their equivalents.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Although ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used merely to distinguish one component from another. For example, a first component may be referred to as a second component, and likewise, a second component may be referred to as a first component, without departing from the teachings of the inventive concept. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.
The terminology used herein is for the purpose of describing various embodiments only and is not intended to be limiting. As used herein, the singular is intended to include the plural as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, or groups thereof.
Summary of the application
The existing vacuum arc-extinguishing chambers have different dimensions and long ends, and when the vacuum arc-extinguishing chambers with shorter dimensions are required to be applied, one end of a corrugated pipe of each vacuum arc-extinguishing chamber is close to or placed in a shielding cylinder due to the limitation of the dimensions, wherein a person skilled in the art should understand that a large amount of high-temperature metal vapor is generated when a moving contact and a fixed contact are disconnected, and if the corrugated pipe is too close to the shielding cylinder, a protective cover is required to be additionally arranged at the end part of the corrugated pipe so as to prevent the corrugated pipe from being corroded by the high-temperature metal vapor, thereby reducing the service life of the corrugated pipe. When a vacuum interrupter with a long size needs to be used, the existing vacuum interrupter is usually provided with a protective cover to protect the corrugated tube, but this increases the manufacturing cost. Therefore, in order to improve market competitiveness, a vacuum arc-extinguishing chamber assembly without installing a protective cover is required to be designed, so that when the corrugated pipe is positioned on the upper side of the shielding cover, the corrugated pipe is less influenced by high-temperature metal vapor corrosion and can be normally used within a preset period, and therefore the shielding cover is not required to be installed, and the production cost is reduced.
Based on the above, there is a need for a vacuum interrupter assembly that is simple to manufacture, less susceptible to high temperature metal vapor corrosion of the bellows, and highly practical without the need for a protective cover.
Based on the technical problems, the utility model provides the vacuum arc-extinguishing chamber assembly without the protective cover, wherein the vacuum arc-extinguishing chamber assembly without the protective cover has a simple structure, does not relate to complex manufacturing process and expensive materials, has higher economical efficiency, and is easy to produce, low in cost, more beneficial to control the production cost and further beneficial to product popularization and use for manufacturers.
Vacuum interrupter assembly schematically without protective cover
Referring to fig. 1 to 3, according to a preferred embodiment of the present utility model, there is provided a vacuum interrupter assembly without a protective cover, wherein the existing vacuum interrupter has different sizes and ends, and when a vacuum interrupter with a shorter size is required, one end of a bellows is close to or placed in a shielding cylinder due to the limitation of the size, wherein it should be understood by those skilled in the art that a large amount of high temperature metal vapor is generated when a moving contact is disconnected from a fixed contact, and if the bellows is too close to the shielding cylinder, the protective cover is required to be added to the end of the bellows to prevent the bellows from being corroded by the high temperature metal vapor, thereby reducing the service life of the bellows. When a vacuum interrupter with a long size needs to be used, the existing vacuum interrupter is usually provided with a protective cover to protect the corrugated tube, but this increases the manufacturing cost. Therefore, in order to improve market competitiveness, a vacuum interrupter assembly without installing a protective cover is required to ensure that the corrugated pipe is less affected by high-temperature metal vapor corrosion when the corrugated pipe is positioned on the upper side of the shielding cover, so that the shielding cover is not required to be installed, and the production cost is reduced.
Specifically, the vacuum interrupter assembly without installing a protective cover includes a housing 10 and a shielding cylinder 20, the shielding cylinder 20 is disposed in the housing 10, the housing 10 has a first cavity 101 with two communicating ends, the shielding cylinder 20 is disposed in the first cavity 101, the shielding cylinder 20 also has a second cavity 201 with two communicating ends, and two communicating ends of the second cavity 201 are respectively communicated with the first cavity 101.
The vacuum interrupter assembly without the protective cover further comprises a bellows 30, wherein one end of the bellows 30 is disposed in the first cavity 101 and spaced a predetermined distance from the shielding cylinder 20, and the bellows 30 is further disposed on the upper side of the shielding cylinder 20.
Specifically, the vacuum interrupter assembly without the protective cover further includes a movable rod assembly 40, one end of the movable rod assembly 40 is disposed in the shielding cylinder 20, and the other end is connected with the bellows 30 in a sleeved mode. Wherein it will be appreciated by those skilled in the art that the end of the housing 10 adjacent to one end of the bellows 30 is provided with an outer moving cover against which the other end of the bellows 30 rests, and the moving rod assembly 40 is movable a predetermined distance in a direction approaching the bellows 30. It should be noted that, an end of the bellows 30 facing away from the external movable cover plate abuts against the movable rod assembly 40, that is, when the movable rod assembly 40 moves, the movable rod assembly 40 presses the bellows 30 to deform the bellows 30.
It should be noted that, the wall surface forming the first cavity 101 has an annular protrusion 11, where the bellows 30 is located on the upper side of the annular protrusion 11, the shielding cylinder 20 is located on the lower side of the annular protrusion 11, and one side of the annular protrusion 11 near the bellows 30 has an abutment surface 111, and the shielding cylinder 20 is fixedly connected with the abutment surface 111, so as to define the position of the shielding cylinder 20. The shielding cylinder 20 has a first connection end 21, an abutting end 22 and a second connection end 23, two ends of the abutting end 22 are respectively connected with the first connection end 21 and the second connection end 23, the first connection end 21 is located at one side of the annular protrusion 11 away from the first cavity 101 and spaced a predetermined distance, the abutting end 22 is fixedly connected with the abutting surface 111, so as to define a position of the shielding cylinder 20, and the second extension end extends a predetermined distance in a direction away from the abutting end 22 and is close to an end of the housing 10.
It should be noted that the shielding cylinder 20 further has a first opening 201 and a second opening 202, where the first opening 201 and the second opening 202 are both in communication with the second cavity 201, and the first opening 201 is located at an end of the first connection end 21 facing away from the abutment end 22, and the second opening 202 is located at an end of the second connection end 23 facing away from the abutment end 22. It will be further understood by those skilled in the art that the abutment surface 111 is welded to the abutment end 22 by applying a metal coating to the abutment surface 111 and brazing. Further, the size of the first opening 201 is smaller than the size of the second opening 202, that is, the wall surface forming the first opening 201 is curved inward, so that when the vacuum chamber is opened, the wall surface forming the first opening 201 can block part of the metal vapor and the liquid droplets sprayed toward the first opening 201 (the contact generates a large amount of metal vapor and liquid droplet splashes during arcing).
Further, the movable rod assembly 40 includes a movable rod 41 and a movable contact 42, one end of the movable rod 41 passes through the first opening 201 and is disposed in the second cavity 201, and one end of the movable rod 41 disposed in the second cavity 201 is fixedly connected with the movable contact 42, and the movable rod 41 and the movable contact 42 may be connected in a welded manner or in a riveted manner.
Further, the middle section of the moving rod 41 has an annular stop 411, the annular stop 411 is located on the upper side of the annular protrusion 11, and two ends of the annular stop 411 are close to the wall surface forming the first cavity 101, wherein the cross section of the annular stop 411 is circular. In addition, the cross-sectional dimension of the annular stopper 411 is identical to the maximum cross-sectional dimension of the first connection end 21, that is, the metal vapor and the liquid droplets ejected from the first opening 201 are blocked by the annular stopper 411. It should be noted that the moving rod 41 has a third connecting end 412 and a fourth connecting end 413, the third connecting end 412 is connected to the fourth connecting end 413, the third connecting end 412 is smaller than the fourth connecting end 413, one side of the annular stop 411 has a circular groove 41101, the bottom wall forming the circular groove 41101 has an insertion hole 41102, one end of the third connecting end 412 passes through the insertion hole 41102 and is disposed in the second cavity 201, and one side of the fourth connecting end 413 close to the third connecting end 412 is fixedly connected to the wall forming the circular groove 41101, so as to define the position of the annular stop 411. It should be noted that the third connection end 412, the fourth connection end 413, and the annular stop 411 may also be integrally formed.
It should be noted that the bellows 30 is sleeved on the fourth connecting end 413, and the maximum cross-sectional dimension of the bellows 30 is smaller than the cross-sectional dimension of the annular stop 411, and in addition, the gap between the annular stop 411 and the wall surface forming the first cavity 101 is 0.5-0.8mm, preferably 0.6 mm, so that the metal vapor and the liquid drop received by the bellows 30 are smaller, thereby ensuring that the bellows 30 can normally operate within a predetermined lifetime.
In addition, the wall surface forming the circular groove 41101 further has a plurality of first assembling grooves (not shown), the plurality of first assembling grooves are located on the periphery side of the insertion hole 41102, and an elastic member 43 is further disposed in each of the first assembling grooves, and one end of the plurality of elastic members 43 facing away from the circular groove 41101 abuts against one side of the bellows 30 near the annular stop 411. It should be noted that, the elastic member 43 may be implemented as a compression spring, and since each movement of the moving rod 41 causes deformation of the bellows 30, when the bellows 30 is deformed too many times, there may be a problem that the contact between the moving contact 42 and the fixed contact is not tight, so by adding a plurality of elastic members 43, a force is applied to the bottom wall forming the circular groove 41101 to ensure that the moving contact 42 is tightly contacted with the fixed contact.
In summary, the vacuum interrupter assembly without the protection cover according to the embodiment of the utility model is illustrated, which provides advantages of simple processing, less influence of high-temperature metal vapor corrosion on the bellows, high practicality, and the like for the vacuum interrupter assembly without the protection cover.
It should be noted that, in the embodiment of the utility model, the vacuum interrupter assembly without the protection cover has a simple structure, does not involve complex manufacturing process and expensive materials, and has higher economical efficiency. Meanwhile, for manufacturers, the vacuum arc-extinguishing chamber component without the protective cover is easy to produce, low in cost, beneficial to control of production cost and further beneficial to product popularization and use.
It will be appreciated by persons skilled in the art that the embodiments of the utility model described above and shown in the drawings are by way of example only and are not limiting. The objects of the present utility model have been fully and effectively achieved. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments of the utility model may be modified or practiced without departing from such principles.
Claims (8)
1. A vacuum interrupter assembly without a protective cover, the vacuum interrupter assembly without a protective cover comprising:
the movable rod assembly comprises a movable rod and an annular stop block, the movable rod is provided with a third connecting end and a fourth connecting end, the third connecting end is connected with the fourth connecting end, one side of the annular stop block is provided with a round groove, the bottom wall forming the round groove is provided with an insertion hole, one end of the third connecting end penetrates through the insertion hole, and one side, close to the third connecting end, of the fourth connecting end is fixedly connected with the wall forming the round groove; and
the movable rod is arranged in the first cavity, an annular lug is arranged on the wall surface forming the first cavity, and the annular stop block is arranged on the upper side of the annular lug.
2. The protective cover-free vacuum interrupter assembly of claim 1, wherein said protective cover-free vacuum interrupter assembly further comprises a shield cylinder, said shield cylinder cooperating with said annular projection, said shield cylinder also having a second cavity communicating at both ends, said second cavity communicating at both ends with said first cavity, respectively.
3. The protective cover-free vacuum interrupter assembly according to claim 2, wherein said protective cover-free vacuum interrupter assembly further comprises a bellows having one end disposed within said first cavity, said bellows being disposed over said fourth connection end and fixedly connected to a bottom wall forming said circular groove.
4. The vacuum interrupter assembly of claim 3, wherein a side of said annular projection adjacent said bellows has an abutment surface, said shield canister has a first connection end, an abutment end and a second connection end, said abutment end being connected at each end to said first connection end and said second connection end, and said first connection end being located on a side of said annular projection facing away from said first cavity and spaced a predetermined distance, said abutment end being fixedly connected to said abutment surface to define a position of said shield canister, said second extension end extending a predetermined distance away from said abutment end and adjacent an end of said housing.
5. The vacuum interrupter assembly of claim 4, wherein said shield canister further has a first opening and a second opening, said first opening and said second opening both communicating with said second cavity, said first opening being at an end of said first connecting end facing away from said abutting end, said second opening being at an end of said second connecting end facing away from said abutting end, and said first opening being smaller in size than said second opening.
6. The vacuum interrupter assembly of claim 5, wherein said annular stop has a circular cross-section, said annular stop having a cross-sectional dimension that is consistent with a maximum cross-sectional dimension of said first connecting end.
7. The vacuum interrupter assembly of claim 6, wherein a maximum cross-sectional dimension of said bellows is less than a cross-sectional dimension of said annular stop, and further wherein a gap between said annular stop and a wall forming said first cavity is 0.5-0.8mm.
8. The vacuum interrupter assembly according to claim 7, wherein the wall forming the circular groove further has a plurality of first fitting grooves, the plurality of first fitting grooves are located on the peripheral side of the insertion hole, and an elastic member is further provided in each of the first fitting grooves, and one end of the elastic member facing away from the circular groove abuts against one side of the bellows close to the annular stopper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320194569.0U CN219917007U (en) | 2023-01-31 | 2023-01-31 | Vacuum arc-extinguishing chamber assembly without installing protective cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320194569.0U CN219917007U (en) | 2023-01-31 | 2023-01-31 | Vacuum arc-extinguishing chamber assembly without installing protective cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219917007U true CN219917007U (en) | 2023-10-27 |
Family
ID=88426245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320194569.0U Active CN219917007U (en) | 2023-01-31 | 2023-01-31 | Vacuum arc-extinguishing chamber assembly without installing protective cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219917007U (en) |
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2023
- 2023-01-31 CN CN202320194569.0U patent/CN219917007U/en active Active
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