CN215988577U - Contact supporting assembly, vacuum arc extinguishing assembly and vacuum circuit breaker - Google Patents
Contact supporting assembly, vacuum arc extinguishing assembly and vacuum circuit breaker Download PDFInfo
- Publication number
- CN215988577U CN215988577U CN202121842460.0U CN202121842460U CN215988577U CN 215988577 U CN215988577 U CN 215988577U CN 202121842460 U CN202121842460 U CN 202121842460U CN 215988577 U CN215988577 U CN 215988577U
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- connecting rod
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- 230000008859 change Effects 0.000 claims abstract description 5
- 230000007246 mechanism Effects 0.000 claims description 6
- 230000002093 peripheral effect Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 description 15
- 238000005299 abrasion Methods 0.000 description 7
- 230000003068 static effect Effects 0.000 description 7
- 239000000306 component Substances 0.000 description 4
- 230000006870 function Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 239000008358 core component Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 230000000452 restraining effect Effects 0.000 description 1
- 230000008016 vaporization Effects 0.000 description 1
- 238000009834 vaporization Methods 0.000 description 1
Images
Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/0015—Means for testing or for inspecting contacts, e.g. wear indicator
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/50—Means for increasing contact pressure, preventing vibration of contacts, holding contacts together after engagement, or biasing contacts to the open position
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/664—Contacts; Arc-extinguishing means, e.g. arcing rings
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H33/00—High-tension or heavy-current switches with arc-extinguishing or arc-preventing means
- H01H33/60—Switches wherein the means for extinguishing or preventing the arc do not include separate means for obtaining or increasing flow of arc-extinguishing fluid
- H01H33/66—Vacuum switches
- H01H33/666—Operating arrangements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/16—Indicators for switching condition, e.g. "on" or "off"
Landscapes
- High-Tension Arc-Extinguishing Switches Without Spraying Means (AREA)
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model relates to a contact support assembly, a vacuum arc extinguishing assembly and a vacuum circuit breaker. The contact support assembly includes: a holder (41); a contact spring (45) supported by the bracket (41); a movable member (47) which is coupled to the contact spring (45) in a following manner and has a wear indicating portion (472); a link (42) connected to the movable member (47) and having a contact connection end (421); wherein the relative position of the movable member (47) and the link (42) is arranged such that when the contact reaches a predetermined value of wear thickness, a change in position of the wear indication portion (472) during closing of the contact is identifiable.
Description
Technical Field
The utility model relates to the technical field of control and protection of electrical equipment, in particular to a contact support assembly, a vacuum arc extinguishing assembly and a vacuum circuit breaker.
Background
The vacuum arc-extinguishing chamber is also called a vacuum switch tube, is a core component of a medium-high voltage power switch, and mainly has the main functions of rapidly extinguishing arc and restraining current after a medium-high voltage circuit is cut off a power supply through excellent vacuum insulation in the tube, so that accidents and accidents are avoided. During the breaking and closing processes of the moving contact and the static contact in the vacuum arc extinguishing chamber, various phenomena such as metal liquid bridges, electric arcs, spark discharge and the like can be generated at the gap between the contacts, so that metal transfer, splashing and vaporization of contact materials are caused, and loss of the contact materials and deformation of the contacts are caused, which are collectively called as abrasion of the contacts. The wear of the contacts directly affects the service life of the electrical equipment and even the safety of the electrical equipment. Therefore, there is a need for an effective means of communicating contact wear information to an operator in a timely manner.
One known solution is to form a wear indicator on the moving contact, and to indicate the wear of the contact by the operator through the displacement of the wear indicator after the contact is closed. However, this solution has the disadvantage that the vacuum interrupter needs to be constructed as a closed component, which generally does not allow the operator to directly observe the moving contact during actual use, and therefore cannot check the wear of the contacts. For this reason, it may be necessary to equip a series of kit parts, such as sensors, which increase the structural complexity of the circuit breaker and also do not facilitate the installation and maintenance of the device. Therefore, there is a need in the industry for a solution that allows direct inspection of the contact wear and that is structurally simplified.
SUMMERY OF THE UTILITY MODEL
The present invention is directed to a contact support assembly that solves at least some of the problems set forth above.
The present invention is also directed to a vacuum arc extinguishing assembly employing the improved contact support assembly.
The present invention is also directed to a vacuum circuit breaker employing the improved vacuum arc extinguishing assembly.
According to one aspect of the utility model, there is provided a contact support assembly comprising: a support; a contact spring supported by the bracket; a movable member that is follow-up engaged to the contact spring and has a wear indicating portion; a connecting rod connected to the movable member and having a contact connecting end; wherein the relative position of the moveable member and the link is arranged such that when the contact reaches a predetermined value of wear thickness, a change in position of the wear indicator during closing of the contact is identifiable.
In some embodiments, the link passes through the movable member, and the movable member is mounted on the link so as to be positionally adjustable in an axial direction thereof with respect to the link.
In some embodiments, the link passes through the bracket and the contact spring and is connected to the movable member, one end of the link is formed with a flange on a side of the bracket facing away from the contact spring, and the other end of the link protrudes out of the movable member and serves as the contact connecting end.
In some embodiments, an insulating sleeve is sleeved on the connecting rod, and the insulating sleeve penetrates through the contact spring and the bracket.
In some embodiments, a first insulating pad is sleeved on the connecting rod, and the first insulating pad is positioned between the bracket and the flange; and/or a second insulating pad is sleeved on the connecting rod and is arranged on the side surface of the movable piece, which faces away from the support.
In some embodiments, the contact spring is housed in a sleeve supported by the cradle, the wear indicator being arranged to be movable out of the sleeve to be identified when the contact reaches a predetermined value of wear thickness during closing of the contact.
In some embodiments, the movable member is supported by the contact spring, and the wear indicating portion is an indicating line formed on an outer circumferential surface of the movable member.
In some embodiments, the moveable member further has a mounting indicator portion that is remote from the bracket relative to the wear indicator portion.
According to another aspect of the present invention, there is provided a vacuum arc extinguishing assembly comprising: the vacuum arc extinguish chamber is provided with a moving contact and a fixed contact which can move relatively; a contact support assembly connected to the movable contact; the contact support assembly is the contact support assembly, and the contact connecting end of the connecting rod is connected to the moving contact.
According to still another aspect of the present invention, there is provided a vacuum circuit breaker including: a housing; a vacuum arc extinguishing assembly housed in the housing; an operating mechanism connected to the vacuum arc extinguishing assembly; wherein the vacuum arc extinguishing assembly is the vacuum arc extinguishing assembly described above, wherein the operating mechanism is connected to the bracket of the contact supporting assembly.
Additional features and advantages of the utility model will be set forth in part in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following, or may be learned from the practice of the utility model.
Drawings
Embodiments of the utility model are described in detail below with reference to the attached drawing figures, wherein:
fig. 1 is a partial schematic view of a vacuum interrupter according to an embodiment of the present invention;
figure 2 is a schematic view of a contact support assembly according to an embodiment of the utility model;
figure 3 is an exploded schematic view of a contact support assembly according to an embodiment of the present invention;
fig. 4 is a cross-sectional view of a contact support assembly according to an embodiment of the present invention, showing that the installation indicating portion of the movable member can be identified and the wear indicating portion cannot yet be identified in the contact-closed state;
fig. 5 is a cross-sectional view of a contact support assembly according to an embodiment of the present invention, showing that a wear indicating portion of a movable member can be identified in a contact-closed state.
Description of reference numerals:
1. a vacuum circuit breaker; 2. a coil; 3. a vacuum arc-extinguishing chamber; 31. a first connection terminal; 32. a second connection terminal; 33. soft connection; 4. a contact support assembly; 40. a connecting shaft; 41. a support; 42. a connecting rod; 421. a contact connecting end; 422. a flange; 43. a first insulating pad; 44. an insulating sleeve; 45. a contact spring; 451. a spring plate; 46. a sleeve; 47. a movable member; 471. an installation indication part; 472. a wear indicator; 48. a second insulating pad; 5. a connecting rod assembly.
Detailed Description
Referring now to the drawings, illustrative aspects of the disclosed contact support assembly, vacuum arc extinguishing assembly and vacuum circuit breaker will be described in detail. Although the drawings are provided to present some embodiments of the utility model, the drawings are not necessarily to scale of particular embodiments, and certain features may be exaggerated, removed, or partially sectioned to better illustrate and explain the present disclosure. The position of some components in the drawings can be adjusted according to actual requirements on the premise of not influencing the technical effect. The appearances of the phrase "in the drawings" or similar language in the specification are not necessarily referring to all drawings or examples.
Certain directional terms used hereinafter to describe the drawings, such as "inner", "outer", "above", "below", and other directional terms, will be understood to have their normal meaning and refer to those directions as they normally relate to when viewing the drawings. Unless otherwise indicated, the directional terms described herein are generally in accordance with conventional directions as understood by those skilled in the art.
The terms "first," "second," and the like, as used herein, do not denote any order, quantity, or importance, but rather are used to distinguish one element from another.
Fig. 1 shows a schematic view of an embodiment of a vacuum interrupter 1 according to the present invention. As shown in the figure, a stationary contact (not shown) in the vacuum interrupter 3 of the vacuum circuit breaker 1 is connected to the first connection terminal 31, and a movable contact (not shown) in the vacuum interrupter 3 is connected to the second connection terminal 32 through a flexible connection 33. A coil 2, for example a CT coil, is arranged at the first connection terminal 31. The contact supporting component 4 is connected with a moving contact of the vacuum arc-extinguishing chamber 3. The switching-on and switching-off operating mechanism (not shown) of the vacuum circuit breaker 1 is connected with the connecting rod assembly 5 and controls the contact supporting assembly 4 to move, so that the moving contact is driven to be connected with or separated from the fixed contact. The vacuum interrupter 3 and the contact support assembly 4 may be placed in a one-piece housing (not shown), for example.
Fig. 2 and 3 show one example of a contact support assembly 4. As shown in the drawing, in the contact support assembly 4, the connection shaft 40 is mounted on a bracket 41. The bracket 41 is shown in an inverted U-shape, with the connecting shaft 40 passing through two opposite side walls of the bracket 41. The connecting shaft 40 is used to pivotally connect the tie rods of the link assembly 5. In other embodiments, not shown, the bracket 41 may have other configurations, for example omitting a connection shaft separate from the bracket, and the bracket itself being integrally formed with a projecting cylindrical shaft for connecting the tie rod of the connecting-rod assembly 5.
A sleeve 46 is supported on the carrier 41, and a contact spring 45 is arranged within the sleeve 46. The contact spring 45 supports the movable member 47 and provides a pushing force to the movable member 47 in a direction away from the bracket 41 (i.e., in a direction toward the movable contact in the vacuum interrupter chamber). The connecting rod 42 passes through the bracket 41, the contact spring 45 and the movable element 47, and the connecting rod 42 is connected with the movable element 47, after assembly, the connecting rod 42 and the movable element 47 cannot move relatively, or at least the movable element 47 cannot move along the axial direction of the connecting rod 42, so that the movement of the movable element 47 (under the thrust action of the contact spring 45) drives the connecting rod 42 to move synchronously. The contact spring 45 is shown to be composed of a plurality of spring pieces 451 stacked in the axial direction of the sleeve 46. In other embodiments not shown, the contact spring may be a coil spring, or may be a spring element of other configurations. One end of the connecting rod 42 projects beyond the side of the support 41 facing away from the sleeve 46 and is provided with a flange 422 at this end. The size of the flange 422 is larger than the opening of the bracket 41 through which the link 42 passes, and prevents the link 42 from coming out of the bracket 41 during movement. The other end of the connecting rod 42 protrudes from the side of the movable element 47 facing away from the support 41 and serves as a contact connection end 421 for connecting to a movable contact in the vacuum interrupter chamber.
In one embodiment, the link 42 is a threaded rod and the flange 422 is a nut that is threadably engaged to the link 42. The movable member 47 is adapted to have internal threads that mate with the external threads of the threaded rod so that the movable member can be adjusted in position axially of the connecting rod 42 during assembly, and this adjustment is continuous and positioned relative to the connecting rod after adjustment to the proper position. In another embodiment, the connecting rod 42 is arranged with a plurality of positioning portions in the axial direction, for example, a plurality of circumferential grooves, which communicate with each other by means of one or more grooves extending in the axial direction of the connecting rod, and the inner wall of the movable member 47 is formed with a mating positioning protrusion, and the adjustment of the axial position of the movable member along the connecting rod is achieved by moving the positioning protrusion along the axial groove to a corresponding one of the circumferential grooves and into the circumferential groove. In a further embodiment, the connecting rod is arranged with a plurality of positioning holes in the axial direction, the movable member has a corresponding aperture, and after the movable member is adjusted to the closed position in the axial direction of the rod member, the positioning of the movable member relative to the connecting rod can also be achieved by inserting a positioning pin or nail into the aperture and the aligned one of the positioning holes. In another embodiment, the movable member may be a tight fit around the link. In other embodiments, the movable part can also be arranged in a positionally unadjustable manner relative to the connecting rod, for example welded or glued to the connecting rod.
An attachment indicating portion 471 and a wear indicating portion 472 are formed on the outer periphery of the movable element 47. In the illustrated embodiment, the installation indication portion 471 and the wear indication portion 472 are each configured as an indication line extending circumferentially along the moveable member 47. The installation indicating portion 471 is closer to the contact connecting end 421 of the link 42 than the wear indicating portion 472. In other embodiments, the installation indicator 471 and the wear indicator 472 may have other forms, such as a pattern mark, a text mark, a scale mark, a color mark, or a combination of at least two of these forms. In the case of using the scale mark, the condition of abrasion of the moving contact and the static contact can be grasped in real time.
An insulating sleeve 44 is also sleeved on the connecting rod 42. In the illustrated embodiment, an insulating sleeve 44 may be placed over the link, optionally with heat shrink tubing, and through the bracket 41 and contact spring 45. In other embodiments, an insulating sleeve may be fitted over the connecting rod and formed with a radially extending flange near one end, the insulating sleeve passing through the carrier and the contact spring and resting on the carrier with the radially extending flange such that the carrier supports the insulating sleeve. A first insulating pad 43 may also be provided between the side of the support 41 facing away from the sleeve 46 and the flange 422 on the connecting rod 42, the first insulating pad 43 being fitted over the connecting rod 42. In addition, a second insulating pad 48 can be arranged on the side of the movable element 47 facing the contact connection 421 of the connecting rod 42, which second insulating pad 48 is fitted on the connecting rod 42.
The principle of the contact support assembly 4 of the present invention is described in detail below in connection with fig. 4 and 5.
Fig. 4 shows that in the case of initial normal assembly (the moving contact and the fixed contact in the vacuum arc-extinguishing chamber are not worn), when the moving contact and the fixed contact in the vacuum arc-extinguishing chamber are closed, the installation indication portion 471 of the moving member 47 is exposed outside the sleeve 46, and the operator determines that the contact supporting assembly 4 is correctly installed based on the fact that the installation indication portion 471 can be seen or detected. At this point, wear indicator 472 is not visible or detectable by the operator because it is located within sleeve 46. The installation indicator 471 corresponds to a reference position for the correct assembly of the contact support assembly 4 with the vacuum interrupter, and corresponds to a substantially fixed movement path of the contact spring. After the moving contact and the static contact in the vacuum arc extinguishing chamber are closed, the contact spring 45 is compressed under the operation of the connecting rod assembly 5, so that the moving contact and the static contact have enough contact pressure and overtravel. In this case, the installation indication portion 47 is required to be exposed outside the sleeve 46, for example, the upper edge of the sleeve 46 may be just flush with or slightly exposed, so that an accurate installation indication can be provided for an operator.
Once the moving contact and the fixed contact are worn, as shown in fig. 5, based on the same operation of the link assembly 5, when the moving contact and the fixed contact in the vacuum arc extinguishing chamber are closed, the moving member 47 makes the installation indication portion 471 be away from the upper edge of the sleeve 46 due to the larger stroke of the link 42, and meanwhile, the wear indication portion 472 is exposed outside the sleeve 46, and an operator can recognize the position change of the wear indication portion (relative to the sleeve) based on the fact that the wear indication portion 472 can be seen or detected, so as to determine that the wear thickness of the moving contact and the fixed contact has reached a predetermined value (for example, about 3 mm). The wear indicator 472 may, for example, be just flush with the upper edge of the sleeve 46 or slightly exposed at the upper edge to provide an accurate wear indication to the operator.
In an embodiment in which the movable element 47 is capable of moving relative to the connecting rod 42 to adjust its position on the connecting rod, for example, in a case where the connecting rod 42 is screwed to the movable element 47, when an operator finds that the position of the wear indication portion 472 has exceeded the sleeve 46, the contact support assembly 4 can be restored to the initial normal assembly shown in fig. 4 by adjusting the position of the movable element 47 in the axial direction of the connecting rod 42, that is, when the movable contact and the fixed contact in the vacuum interrupter chamber are closed, the installation indication portion 471 of the movable element 47 is exposed outside the sleeve 46 and can be directly recognized by the operator, and the wear indication portion 472 is located inside the sleeve 46 and cannot be directly recognized by the operator. Therefore, the worn moving contact and the worn static contact do not need to be frequently replaced, the complicated opening and closing operation mechanism and the connecting rod assembly 5 do not need to be adjusted, and the normal work of the vacuum circuit breaker can be ensured only by adjusting the moving part.
Although the illustrated embodiment shows the connecting rod passing through the bracket, the contact spring and the movable member in sequence and connected to the movable member, other variations are considered by those skilled in the art, for example, the contact spring is seated on the bracket and a connecting portion (e.g., a connecting member with a groove or a bolt) is provided at an end of the contact spring away from the bracket, and one end of the connecting rod is connected to the connecting portion (e.g., inserted into the groove or fixed by a bolt), and the other end is connected to the movable contact, and then the movable member is sleeved on the connecting rod. Therefore, when the moving contact and the static contact in the vacuum arc extinguishing chamber are closed, the contact spring is compressed by operating the connecting rod assembly, so that the thrust is transmitted to the moving contact by means of the connecting rod, the moving contact and the static contact are ensured to have sufficient contact pressure and overtravel, and meanwhile, the moving part can realize the function of providing accurate installation indication or wear indication for an operator.
Further, in other embodiments not shown, the wear indication portion of the moveable member may be closer to the contact connection end of the link than the mounting indication portion. Under the condition of initial normal assembly, when the movable contact and the fixed contact in the vacuum arc extinguishing chamber are closed, the installation indicating part and the wear indicating part of the movable contact can be directly identified (seen or detected) by an operator. Along with the abrasion of the moving contact and the fixed contact in the vacuum arc extinguish chamber, when the moving contact and the fixed contact are closed, due to the increased stroke of the connecting rod, the abrasion indicating part is immersed in the vacuum arc extinguish chamber (for example, is shielded by the lower edge of the vacuum arc extinguish chamber) or is shielded by other components, and an operator can identify the position change of the abrasion indicating part according to the condition that the abrasion indicating part cannot be seen or detected, so that the abrasion conditions of the moving contact and the fixed contact are judged.
It should be understood that although the description is in terms of various embodiments, not every embodiment includes only a single embodiment, and such description is for clarity purposes only, and those skilled in the art will recognize that the embodiments described herein may be combined as suitable to form other embodiments, as will be appreciated by those skilled in the art.
The above description is only an exemplary embodiment of the present invention, and is not intended to limit the scope of the present invention. Any equivalent alterations, modifications and combinations can be made by those skilled in the art without departing from the spirit and principles of the utility model.
Claims (10)
1. A contact support assembly, comprising:
a holder (41);
a contact spring (45) supported by the bracket (41);
a movable member (47) which is coupled to the contact spring (45) in a following manner and has a wear indicating portion (472);
a link (42) connected to the movable member (47) and having a contact connection end (421);
wherein the relative position of the movable member (47) and the link (42) is arranged such that when the contact reaches a predetermined value of wear thickness, a change in position of the wear indication portion (472) during closing of the contact is identifiable.
2. The contact support assembly according to claim 1, characterized in that the connecting rod (42) passes through the movable element (47), the movable element (47) being mounted on the connecting rod (42) in a position-adjustable manner in relation to the connecting rod (42) in the axial direction thereof.
3. The contact support assembly according to claim 1, characterized in that the link rod (42) passes through the carrier (41) and the contact spring (45) and is connected to the movable piece (47), one end of the link rod (42) is formed with a flange (422) on a side of the carrier (41) facing away from the contact spring (45), and the other end of the link rod (42) protrudes out of the movable piece (47) as the contact connection end (421).
4. Contact support assembly according to claim 3, characterized in that an insulating sleeve (44) is sleeved on the connecting rod (42), the insulating sleeve (44) passing through the contact spring (45) and the carrier (41).
5. The contact support assembly of claim 3,
a first insulating pad (43) is sleeved on the connecting rod (42), and the first insulating pad (43) is positioned between the bracket (41) and the flange (422); and/or
A second insulating pad (48) is arranged on the connecting rod (42) in a sleeved manner, and the second insulating pad (48) is arranged on the side surface of the movable piece (47) facing away from the support (41).
6. A contact support assembly according to any one of claims 1 to 5, characterized in that the contact spring (45) is housed in a sleeve (46) supported by the carrier (41), the wear indicator (472) being arranged so that the wear indicator (472) can be moved out of the sleeve (46) to be identified when the contact reaches a predetermined value of wear thickness during contact closing.
7. The contact support assembly according to any one of claims 1 to 5, characterized in that the movable member (47) is supported by the contact spring (45), and the wear indication portion (472) is an indication line formed on an outer peripheral surface of the movable member (47).
8. A contact support assembly according to any one of claims 1 to 5, characterized in that the mobile element (47) further has a mounting indication portion (471), the mounting indication portion (471) being remote from the carrier (41) with respect to the wear indication portion (472).
9. A vacuum arc extinguishing assembly comprising:
the vacuum arc extinguish chamber (3) is provided with a moving contact and a fixed contact which can move relatively;
a contact support assembly (4) connected to the movable contact;
characterized in that the contact support assembly (4) is a contact support assembly according to any one of claims 1 to 8, wherein the contact connection end (421) of the link (42) is connected to the movable contact.
10. A vacuum interrupter, comprising:
a housing;
a vacuum arc extinguishing assembly housed in the housing;
an operating mechanism connected to the vacuum arc extinguishing assembly;
a vacuum arc extinguishing assembly according to claim 9, wherein the operating mechanism is connected to the bracket (41) of the contact support assembly (4).
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121842460.0U CN215988577U (en) | 2021-08-09 | 2021-08-09 | Contact supporting assembly, vacuum arc extinguishing assembly and vacuum circuit breaker |
| EP22855622.1A EP4386803A1 (en) | 2021-08-09 | 2022-08-09 | Contact support assembly, vacuum interrupter assembly, and vacuum circuit breaker |
| PCT/IB2022/057422 WO2023017420A1 (en) | 2021-08-09 | 2022-08-09 | Contact support assembly, vacuum interrupter assembly, and vacuum circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121842460.0U CN215988577U (en) | 2021-08-09 | 2021-08-09 | Contact supporting assembly, vacuum arc extinguishing assembly and vacuum circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215988577U true CN215988577U (en) | 2022-03-08 |
Family
ID=80514382
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121842460.0U Active CN215988577U (en) | 2021-08-09 | 2021-08-09 | Contact supporting assembly, vacuum arc extinguishing assembly and vacuum circuit breaker |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4386803A1 (en) |
| CN (1) | CN215988577U (en) |
| WO (1) | WO2023017420A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023017420A1 (en) * | 2021-08-09 | 2023-02-16 | 伊顿电气有限公司 | Contact support assembly, vacuum interrupter assembly, and vacuum circuit breaker |
| CN117393368A (en) * | 2023-11-17 | 2024-01-12 | 广东电网有限责任公司广州供电局 | Contact pulling device |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117116703A (en) * | 2023-10-20 | 2023-11-24 | 厦门顾德益电气股份有限公司 | Vacuum arc-extinguishing chamber module of environment-friendly gas cabinet |
| CN117393375B (en) * | 2023-12-08 | 2024-02-02 | 陕西四方华能电气设备有限公司 | High-voltage vacuum circuit breaker |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6002560A (en) * | 1998-09-02 | 1999-12-14 | Eaton Corporation | Circuit breaker contact wear indicator |
| US9633808B2 (en) * | 2014-10-06 | 2017-04-25 | Eaton Corporation | Electrical interruption apparatus with wear indicator |
| CN105374622A (en) * | 2015-12-23 | 2016-03-02 | 戴顿（重庆）高压开关有限公司 | Insulating pull rod, vacuum circuit breaker with insulating pull rod and method for monitoring wearing capacity of movable and static contacts of vacuum circuit breaker |
| CN215988571U (en) * | 2021-08-09 | 2022-03-08 | 伊顿电气有限公司 | Vacuum circuit breaker |
| CN215988577U (en) * | 2021-08-09 | 2022-03-08 | 伊顿电气有限公司 | Contact supporting assembly, vacuum arc extinguishing assembly and vacuum circuit breaker |
-
2021
- 2021-08-09 CN CN202121842460.0U patent/CN215988577U/en active Active
-
2022
- 2022-08-09 EP EP22855622.1A patent/EP4386803A1/en active Pending
- 2022-08-09 WO PCT/IB2022/057422 patent/WO2023017420A1/en active Application Filing
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023017420A1 (en) * | 2021-08-09 | 2023-02-16 | 伊顿电气有限公司 | Contact support assembly, vacuum interrupter assembly, and vacuum circuit breaker |
| CN117393368A (en) * | 2023-11-17 | 2024-01-12 | 广东电网有限责任公司广州供电局 | Contact pulling device |
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| Publication number | Publication date |
|---|---|
| EP4386803A1 (en) | 2024-06-19 |
| WO2023017420A1 (en) | 2023-02-16 |
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