CN217114215U

CN217114215U - Vacuum arc-extinguishing chamber not prone to poor contact

Info

Publication number: CN217114215U
Application number: CN202220068579.5U
Authority: CN
Inventors: 王朝斌
Original assignee: Ningbo Yunzhen Vacuum Electrical Appliance Co ltd
Current assignee: Ningbo Yunzhen Vacuum Electrical Appliance Co ltd
Priority date: 2022-01-06
Filing date: 2022-01-06
Publication date: 2022-08-02
Anticipated expiration: 2032-01-06

Abstract

The application relates to a vacuum arc extinguish chamber, in particular to a vacuum arc extinguish chamber not prone to poor contact, which comprises a shell, wherein the shell is provided with a first opening, a first cavity and a second opening, the first opening and the second opening are communicated with the first cavity, and the first opening and the second opening are also communicated with the outside; the shielding cylinder is connected with the wall surface forming the first cavity in a clamping way; and the limiting part is arranged in the shielding cylinder, the limiting part is also provided with a through hole penetrating through the limiting part, and the limiting part is also provided with a limiting part which is annular. The utility model discloses can realize using convenient, simple structure, practicality height, difficult contact failure's advantage through effectively utilizing its self structural configuration.

Description

Vacuum arc-extinguishing chamber not prone to poor contact

Technical Field

The present application relates to a vacuum interrupter, and more particularly, to a vacuum interrupter that is less prone to poor contact.

Background

The existing vacuum arc-extinguishing chamber can cause poor contact between the moving contact and the fixed contact due to failure of the corrugated pipe in the using process, so that the vacuum arc-extinguishing chamber is enabled to be failed integrally. And through injecing moving contact displacement to injecing the flexible distance of bellows, can effectively improve the life of bellows, avoided because of the inefficacy of bellows, and lead to moving contact and static contact problem bad.

Therefore, a need exists for a vacuum interrupter that is easy and convenient to use, simple in structure, highly practical, and less prone to poor contact.

Disclosure of Invention

The main aim at of this application provides a vacuum interrupter who is difficult for contact failure, wherein, the vacuum interrupter who is difficult for contact failure can utilize its self structural configuration to realize using convenient, the advantage of being difficult for contact failure effectively.

Another objective of the present application is to provide a vacuum interrupter with less possibility of poor contact, wherein the vacuum interrupter with less possibility of poor contact includes a shielding cylinder and a limiting part, the limiting part is disposed in the shielding cylinder, and the limiting part is disposed to limit the moving distance of the moving contact.

Another object of the present application is to provide a vacuum interrupter with low probability of poor contact, wherein the vacuum interrupter with low probability of poor contact has simple structure, convenient operation, does not involve complicated manufacturing process and expensive materials, has high economical efficiency, and is easy to popularize and use.

In order to achieve at least one of the above objects, the present application provides a vacuum interrupter less prone to poor contact, comprising:

the shell is provided with a first opening, a first cavity and a second opening, the first opening and the second opening are communicated with the first cavity, and the first opening and the second opening are also communicated with the outside;

the shielding cylinder is connected with the wall surface forming the first cavity in a clamping way; and

the limiting part is arranged in the shielding cylinder, the limiting part is further provided with a through hole penetrating through the limiting part, the limiting part is further provided with a limiting part, and the limiting part is annular.

In one or more embodiments of this application, be difficult for contact failure's vacuum interrupter still includes one and moves the apron, move the apron by fixed connection in the casing is equipped with first open-ended one end, in order to seal first opening, it still has one and runs through to move the apron first patchhole and a second cavity, first patchhole respectively with second cavity and outside are linked together, the second cavity still with first cavity is linked together.

In one or more embodiments of this application, be difficult for the vacuum interrupter of contact failure still includes a carriage release lever, the one end of carriage release lever is arranged in slidably in the first cavity, the one end of carriage release lever is passed in proper order first patchhole with the second cavity is arranged in the first cavity, and the other end is arranged in the outside.

In one or more embodiments of this application, difficult noncontacting vacuum interrupter still includes a uide bushing and a solid fixed ring, the uide bushing still with the moving member deviates from the one end of first cavity is cup jointed and is connected, gu fixed ring with the uide bushing cup joints and is connected, the uide bushing is arranged in the solid fixed ring, wherein gu fixed ring still with move the apron and deviate from one side fixed connection of first cavity.

In one or more embodiments of this application, be difficult for the vacuum interrupter of bad contact still includes a bellows, the bellows with the carriage release lever cup joints and connects, and is arranged in the first cavity, just the one end of bellows supports and leans on and forms on the diapire of second cavity, and the bellows is close to the one end of the diapire of second cavity has still extended one and has inserted the end, it is arranged in to insert the end in the first insert hole, just the other end of bellows is arranged in the middle section of first cavity.

In one or more embodiments of this application, difficult contact failure's vacuum interrupter still includes a safety cover, the safety cover with the bellows is close to the one end in first cavity middle section cup joints and connects, just the safety cover still with the carriage release lever cup joints and connects.

In one or more embodiments of the present application, the moving rod further has a moving contact, the moving contact is disposed at one end of the moving rod located in the first cavity, the moving contact is disposed in the shielding cylinder, and one end of the moving rod, where the moving contact is disposed, passes through the through hole, so that the moving contact is located at one side of the limiting portion away from the moving rod.

In one or more embodiments of the present application, the movable rod further has a plurality of mounting grooves uniformly distributed at one end of the first cavity.

In one or more embodiments of the present application, the vacuum interrupter less prone to poor contact further includes a plurality of elastic members, the elastic members are respectively disposed in the plurality of mounting grooves, one end of each of the elastic members is fixedly connected to the bottom wall of the corresponding mounting groove, and the other end of each of the elastic members is fixedly connected to the moving contact.

Drawings

These and/or other aspects and advantages of the present application will become more apparent and more readily appreciated from the following detailed description of the embodiments of the present application, taken in conjunction with the accompanying drawings of which:

fig. 1 illustrates a schematic structural view of a first vacuum interrupter which is less prone to poor contact.

Fig. 2 illustrates a partial structural view of a first vacuum interrupter which is less prone to poor contact.

Fig. 3 illustrates an enlarged view of a in fig. 2.

Fig. 4 illustrates a partial structural view of a second type of vacuum interrupter which is less prone to poor contact.

Detailed Description

The terms and words used in the following specification and claims are not limited to the literal meanings, but are used only by the inventors to enable a clear and consistent understanding of the application. Accordingly, it will be apparent to those skilled in the art that the following descriptions of the various embodiments of the present application are provided for illustration only and not for the purpose of limiting the application as defined by the appended claims and their equivalents.

It is understood that the terms "a" and "an" should be interpreted as meaning that a number of one element or element is one in one embodiment, while a number of other elements is one in another embodiment, and the terms "a" and "an" should not be interpreted as limiting the number.

While ordinal numbers such as "first," "second," etc., will be used to describe various components, those components are not limited herein. The term is used only to distinguish one element from another. For example, a first component could be termed a second component, and, similarly, a second component could be termed a first component, without departing from the teachings of the present inventive concept. As used herein, the term "and/or" 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 forms are intended to include the plural forms 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, numbers, steps, operations, components, elements, or combinations thereof, but do not preclude the presence or addition of one or more other features, numbers, steps, operations, components, elements, or groups thereof.

Summary of the application

Therefore, a vacuum arc-extinguishing chamber which is convenient to use, simple in structure, high in practicability and not prone to poor contact is needed.

Based on above-mentioned technical problem, this application provides a vacuum interrupter who is difficult for contact failure, wherein, the vacuum interrupter who is difficult for contact failure simple structure does not relate to complicated manufacturing process and expensive material, has higher economic nature, and simultaneously, to the manufacture factory, the vacuum interrupter who is difficult for contact failure who this application provided is easily produced, and low cost more is favorable to controlling manufacturing cost, further is favorable to product popularization and use.

Vacuum arc-extinguishing chamber with low probability of poor contact

Referring to fig. 1 to 4, according to a preferred embodiment of the present invention, the vacuum interrupter with less contact failure is described, wherein the conventional vacuum interrupter causes the moving contact and the static contact to fail due to the failure of the bellows during the use process, so that the vacuum interrupter is entirely failed. And the utility model discloses moving contact displacement is being injectd through injecing to the flexible distance of injecing the bellows, thereby improve the life of bellows, avoided because of the inefficacy of bellows, and lead to moving contact and static contact failure, and then improved vacuum interrupter life. The present invention is explained in detail below to facilitate understanding of the present invention.

Specifically, the vacuum interrupter not prone to poor contact comprises a housing 10, the housing 10 has a first opening 101, a first cavity 102 and a second opening 103, the first opening 101 and the second opening 103 are both communicated with the first cavity 102, and the first opening 101 and the second opening 103 are also both communicated with the outside, which is worth mentioning that the housing 10 can be implemented as a porcelain shell.

Specifically, the vacuum interrupter with less poor contact further includes a movable cover plate 20, and the movable cover plate 20 is fixedly connected to one end of the housing 10, where the first opening 101 is formed, so as to close the first opening 101. It should be noted that the movable cover plate 20 further has a first insertion hole (not shown) and a second cavity (not shown) penetrating through the movable cover plate 20, the first insertion hole is respectively communicated with the second cavity and the outside, and the second cavity is further communicated with the first cavity 102.

Specifically, the vacuum interrupter with less poor contact is further provided with a moving rod 30, and one end of the moving rod 30 is slidably disposed in the first cavity 102. One end of the moving rod 30 passes through the first insertion hole and the second cavity in turn, and is disposed in the first cavity 102, and the other end is disposed outside.

It should be mentioned that, in order to prevent the moving bar from deflecting during moving, the vacuum interrupter which is not prone to poor contact further includes a guide sleeve 40, and the guide sleeve 40 is further connected with one end of the moving member departing from the first cavity 102 in a sleeved manner. Wherein difficult poor vacuum interrupter still includes a solid fixed ring 50, gu fixed ring 50 with uide bushing 40 cup joints and is connected, uide bushing 40 is arranged in gu fixed ring 50, wherein gu fixed ring 50 still with move apron 20 and deviate from one side fixed connection of first cavity 102.

Specifically, the vacuum interrupter not prone to poor contact further includes a bellows 60, the bellows 60 is connected to the moving rod 30 in a sleeved manner and is disposed in the first cavity 102, one end of the bellows 60 abuts against the bottom wall forming the second cavity, and an insertion end (not shown in the drawing) extends from an end of the bellows 60 close to the bottom wall of the second cavity, the insertion end is disposed in the first insertion hole, and the other end of the bellows 60 is disposed in a middle section of the first cavity 102.

Specifically, the vacuum interrupter that is not prone to contact failure further includes a protective cover 70, the protective cover 70 with the bellows 60 is close to the one end in first cavity 102 middle section is cup jointed and is connected, just the protective cover 70 still with the carriage release lever 30 is cup jointed and is connected. It is worth mentioning that the protective cover 70 is used to reduce the loss of the bellows 60 during use.

Specifically, the moving rod 30 further has a movable contact 31, and the movable contact 31 is disposed at one end of the moving rod 30 located in the first cavity 102.

It is worth mentioning that, for guaranteeing that the moving contact 31 can effectually reset to the predetermined distance, it is further right the utility model discloses improve.

Further, the moving rod 30 has a plurality of mounting grooves 301 uniformly distributed at one end of the first cavity 102.

Further, the vacuum interrupter not prone to poor contact further includes a plurality of elastic members 80, the elastic members 80 are respectively disposed in the plurality of mounting grooves 301, one end of each elastic member 80 is fixedly connected to the bottom wall of the corresponding mounting groove 301, and the other end of each elastic member 80 is fixedly connected to the movable contact 31.

Specifically, the vacuum interrupter less prone to poor contact further includes a fixing rod 90, one end of the fixing rod 90 is disposed in the first cavity 102 and close to the movable contact 31, and the other end of the fixing rod 90 passes through the second opening 103 and is disposed outside. It should be noted that one end of the fixing rod 90 close to the movable contact 31 is also fixedly connected with a fixed contact 91, and the fixed contact 91 is directly contacted with the movable contact 31.

It should be noted that, when the fixed contact 91 is in contact with the movable contact 31, the plurality of elastic elements 80 are pressed by the movable contact 31 to deform, so that the movable contact 31 is in contact with one end of the movable rod 30 located in the first cavity 102.

Specifically, the vacuum interrupter that is not prone to contact failure further includes a static cover plate 200, the static cover plate 200 is fixedly connected to the end, provided with the second opening 103, of the housing 10 to seal the second opening 103, and the static cover plate 200 is further connected to the fixing rod 90 in a sleeved manner.

In order to effectively limit the moving distance of the movable contact 31, the utility model is further improved.

Specifically, the vacuum interrupter not prone to poor contact further includes a hollow shielding cylinder 300, and the shielding cylinder 300 is connected to a wall surface forming the first cavity 102 in a clamped manner, and it should be mentioned that the moving contact 31 and the static contact 91 are both located in the shielding cylinder 300.

Specifically, as shown in fig. 4, another vacuum interrupter with less poor contact is further provided with a limiting member 400, the limiting member 400 is disposed in the shielding cylinder 300, the limiting member 400 further has a through hole penetrating through the limiting member 400, and one end of the moving rod 30 located in the first cavity 102 penetrates through the through hole (not shown). Further, the limiting member 400 further has a limiting portion (not shown in the drawings), the limiting portion is annular, where it should be noted that the size of the limiting portion is larger than the aperture of the through hole, and it should be noted that the end of the moving rod 30, which is provided with the moving contact 31, passes through the through hole, so that the moving contact 31 is located on a side of the limiting portion, which is away from the moving rod 30. Further, the limiting portion is close to the movable contact 31, that is, the size of the movable contact 31 is larger than the cross-sectional size of the limiting portion. When the moving rod 30 moves a predetermined distance in a direction away from the fixing rod 90, the moving contact 31 is no longer in contact with the stationary contact 91, and the limiting portion is in direct contact with the stationary contact 91, so as to limit the moving distance of the stationary contact 91, where it should be noted that when the limiting member 400 is used to control the moving distance of the moving contact 31, the elastic member 80 is not used at the same time, so that the moving contact 31 can be effectively prevented from falling off due to failure of the elastic member 80.

In conclusion, based on this application embodiment the vacuum interrupter that is difficult for contact failure is elucidated, it does the vacuum interrupter that is difficult for contact failure provides advantages such as convenient, simple structure, practicality height, difficult contact failure of use.

It is worth mentioning that, in the embodiment of the present application, the vacuum interrupter which is not prone to poor contact has a simple structure, does not involve a complicated manufacturing process and expensive materials, and has high economical efficiency. Meanwhile, for manufacturers, the vacuum arc-extinguishing chamber not prone to poor contact is easy to produce, low in cost and more beneficial to controlling production cost, and further beneficial to product popularization and use.

It will be understood by those skilled in the art that the embodiments of the present invention as described above and shown in the drawings are given by way of example only and are not limiting of the present invention. The objects of the present invention have been fully and effectively accomplished. The functional and structural principles of the present invention have been shown and described in the embodiments, and any variations or modifications may be made without departing from the principles of the present invention.

Claims

1. The utility model provides a vacuum interrupter who is difficult for contact failure which characterized in that, vacuum interrupter who is difficult for contact failure includes:

2. The vacuum interrupter with less poor contact according to claim 1, wherein the vacuum interrupter with less poor contact further comprises a movable cover plate, the movable cover plate is fixedly connected to the end of the housing having the first opening to close the first opening, the movable cover plate further has a first insertion hole and a second cavity penetrating through the movable cover plate, the first insertion hole is respectively communicated with the second cavity and the outside, and the second cavity is further communicated with the first cavity.

3. The less-vulnerable vacuum interrupter according to claim 2, wherein the less-vulnerable vacuum interrupter further comprises a moving rod, one end of the moving rod is slidably disposed in the first cavity, one end of the moving rod sequentially passes through the first insertion hole and the second cavity and is disposed in the first cavity, and the other end of the moving rod is disposed outside.

4. The vacuum interrupter with low probability of poor contact according to claim 3, wherein the vacuum interrupter with low probability of poor contact further comprises a guide sleeve and a fixing ring, the guide sleeve is further connected with one end of the moving rod departing from the first cavity in a sleeved mode, the fixing ring is connected with the guide sleeve in a sleeved mode, the guide sleeve is arranged in the fixing ring, and the fixing ring is further connected with one side of the moving cover plate departing from the first cavity in a fixed mode.

5. The vacuum interrupter with low probability of poor contact according to claim 4, wherein the vacuum interrupter with low probability of poor contact further comprises a bellows, the bellows is connected to the moving rod in a sleeved manner and is disposed in the first cavity, one end of the bellows abuts against the bottom wall forming the second cavity, an insertion end extends from an end of the bellows close to the bottom wall of the second cavity, the insertion end is disposed in the first insertion hole, and the other end of the bellows is disposed in the middle section of the first cavity.

6. The vacuum interrupter with low probability of poor contact according to claim 5, wherein the vacuum interrupter with low probability of poor contact further comprises a protection cover, the protection cover is connected to the end of the bellows close to the middle section of the first cavity in a sleeved manner, and the protection cover is further connected to the moving rod in a sleeved manner.

7. The vacuum interrupter with low probability of poor contact according to claim 6, wherein the moving rod further has a moving contact, the moving contact is disposed at one end of the moving rod located in the first cavity, the moving contact is disposed in the shielding cylinder, and one end of the moving rod where the moving contact is disposed passes through the through hole, so that the moving contact is located at one side of the limiting portion away from the moving rod.

8. The vacuum interrupter with reduced tendency to contact failure as claimed in claim 7, wherein the moving rod further has a plurality of mounting slots uniformly formed at one end of the first cavity.

9. The vacuum interrupter with less prone to poor contact according to claim 8, wherein the vacuum interrupter with less prone to poor contact further comprises a plurality of elastic members, the elastic members are respectively disposed in the mounting grooves, one end of each elastic member is fixedly connected to the bottom wall of the corresponding mounting groove, and the other end of each elastic member is fixedly connected to the movable contact.