CN112582204A - Arc extinguish chamber unit for gas-filled cabinet - Google Patents
Arc extinguish chamber unit for gas-filled cabinet Download PDFInfo
- Publication number
- CN112582204A CN112582204A CN202011406660.1A CN202011406660A CN112582204A CN 112582204 A CN112582204 A CN 112582204A CN 202011406660 A CN202011406660 A CN 202011406660A CN 112582204 A CN112582204 A CN 112582204A
- Authority
- CN
- China
- Prior art keywords
- extinguish chamber
- arc extinguish
- movable
- wire outlet
- outlet seat
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 230000003068 static effect Effects 0.000 claims abstract description 21
- 230000017525 heat dissipation Effects 0.000 claims abstract description 14
- 239000002184 metal Substances 0.000 claims description 13
- 238000000034 method Methods 0.000 claims description 11
- 230000008569 process Effects 0.000 claims description 8
- 238000005470 impregnation Methods 0.000 claims description 4
- 238000000465 moulding Methods 0.000 claims description 3
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 230000005684 electric field Effects 0.000 abstract description 6
- 238000009826 distribution Methods 0.000 abstract description 4
- 238000004880 explosion Methods 0.000 abstract 1
- 230000007246 mechanism Effects 0.000 description 10
- 230000009471 action Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000007789 sealing Methods 0.000 description 3
- 239000004677 Nylon Substances 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 230000005404 monopole Effects 0.000 description 2
- 229920001778 nylon Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Images
Classifications
-
- 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
-
- 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
- H01H33/6606—Terminal arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02B—BOARDS, SUBSTATIONS OR SWITCHING ARRANGEMENTS FOR THE SUPPLY OR DISTRIBUTION OF ELECTRIC POWER
- H02B1/00—Frameworks, boards, panels, desks, casings; Details of substations or switching arrangements
- H02B1/26—Casings; Parts thereof or accessories therefor
- H02B1/30—Cabinet-type casings; Parts thereof or accessories therefor
- H02B1/32—Mounting of devices therein
Abstract
The invention relates to an arc extinguish chamber unit for an inflatable cabinet. The arc extinguish chamber unit for the gas insulated switchgear is used for being assembled in a closed space in the gas insulated switchgear and comprises a vacuum arc extinguish chamber, wherein the front end and the rear end of the vacuum arc extinguish chamber are respectively a movable end and a static end, and the movable end is provided with a movable conducting rod; further comprising: the movable end wire outlet seat is provided with a guide hole, and the guide hole extends along the front-back direction; the conductive sliding block is assembled in the guide hole in a guiding mode and is in conductive connection with the movable end wire outlet seat through a contact finger, and the conductive sliding block is fixed on the movable conductive rod; the static end wire outlet seat is arranged at a front-back interval with the movable end wire outlet seat and is used for fixedly connecting the static end of the vacuum arc extinguish chamber; the arc extinguish chamber support rods are uniformly distributed around the vacuum arc extinguish chamber, and two ends of each arc extinguish chamber support rod are fixedly connected with the movable end wire outlet seat and the static end wire outlet seat respectively. Above-mentioned scheme can solve the current electric field distribution problem and the partial discharge performance problem that the explosion chamber unit appears for the gas insulated switchgear easily, and is with low costs, good heat dissipation.
Description
Technical Field
The invention relates to an arc extinguish chamber unit for an inflatable cabinet.
Background
The circuit breaker unit for the existing gas-filled cabinet generally comprises an operating mechanism and an arc extinguish chamber unit, the operating mechanism is installed outside the gas-filled cabinet, the arc extinguish chamber unit is installed inside the gas-filled cabinet, the arc extinguish chamber unit and the cabinet body are isolated through a corrugated pipe and connected with the operating mechanism through an insulating pull rod in a transmission mode, the vacuum arc extinguish chamber in the arc extinguish chamber unit can be prevented from being influenced by severe environment, and the service life of the vacuum arc extinguish chamber unit is prolonged. Wherein, the vacuum arc-extinguishing chamber of each phase generally adopts the solid utmost point post form of sealing, or adopts the insulating cylinder form, as an integral monopole.
The arc extinguish chamber unit for the inflatable cabinet of the vacuum arc extinguish chamber in the form of the insulating cylinder is in a structure adopted by a pole type vacuum load switch for the inflatable ring main unit, as disclosed in Chinese patent document with publication number CN203733703U, an upper wire outlet seat and a lower wire outlet seat are integrally cast in the insulating cylinder, the upper wire outlet seat is used for being connected with the movable end of the vacuum arc extinguish chamber through flexible connection, and the lower wire outlet seat is used for being connected with the static end of the vacuum arc extinguish chamber. In order to facilitate heat dissipation, the insulating cylinder is provided with heat dissipation holes; in order to firmly fix the vacuum arc-extinguishing chamber, a nylon sleeve is arranged in the insulating cylinder, and the moving end of the vacuum arc-extinguishing chamber is fixed on the nylon sleeve; in order to avoid the problem of uneven electric field at the soft connection position, a shielding cover is arranged on the periphery of the connection part of the insulating pull rod and the movable end of the vacuum arc extinguish chamber.
However, for the vacuum arc-extinguishing chamber in the form of the embedded pole or the insulating cylinder, the shape of the insulator or the insulating cylinder on the outer layer of the embedded pole is irregular, which easily affects the electric field distribution and the partial discharge performance, and further affects the reliability. In addition, the solid-sealed polar pole and the insulating cylinder need to be poured by epoxy resin, so that the material consumption is large, and the manufacturing cost is high. Moreover, due to the limitation of the structural characteristics, the heat dissipation performance is difficult to improve.
Disclosure of Invention
The invention aims to provide an arc extinguish chamber unit for an inflatable cabinet, which solves the problems of electric field distribution and partial discharge performance easily caused by the existing arc extinguish chamber unit for the inflatable cabinet.
The invention adopts the following technical scheme:
the arc extinguish chamber unit for the gas insulated switchgear is used for being assembled in a closed space in the gas insulated switchgear and comprises a vacuum arc extinguish chamber, wherein the front end and the rear end of the vacuum arc extinguish chamber are respectively a movable end and a static end, and the movable end is provided with a movable conducting rod;
further comprising:
the movable end wire outlet seat is provided with a guide hole, and the guide hole extends along the front-back direction;
the conductive sliding block is assembled in the guide hole in a guiding mode and is in conductive connection with the movable end wire outlet seat through a contact finger, and the conductive sliding block is fixed on the movable conductive rod;
the static end wire outlet seat is arranged at a front-back interval with the movable end wire outlet seat and is used for fixedly connecting the static end of the vacuum arc extinguish chamber;
the arc extinguish chamber support rods are uniformly distributed around the vacuum arc extinguish chamber, and two ends of each arc extinguish chamber support rod are fixedly connected with the movable end wire outlet seat and the static end wire outlet seat respectively.
Has the advantages that: by adopting the technical scheme, the movable end wire outlet seat and the static end wire outlet seat are arranged at intervals in the front-back direction and are fixedly connected through the arc extinguish chamber supporting rods, the arc extinguish chamber supporting rods are uniformly distributed around the vacuum arc extinguish chamber, the structure is regular, the influence on the electric field distribution and the partial discharge performance can be reduced, the whole single pole belongs to an open structure and can be directly and fully contacted with gas in the gas box, the heat dissipation effect is good, the structure is simple, and the cost is low; meanwhile, the vacuum arc extinguish chamber can be assembled in the guide hole on the movable end wire outlet seat in a guide mode through the conductive sliding block fixed on the movable conductive rod, and the movable conductive rod is connected with the movable end wire outlet seat in a conductive mode through the contact finger, so that the fixing requirement of the vacuum arc extinguish chamber and the guide requirement of the movable conductive rod can be met simultaneously, and the vacuum arc extinguish chamber is simple in structure.
As a preferred technical scheme: the conductive sliding block is of a cylindrical structure, a supporting plate is arranged in the conductive sliding block, and the supporting plate enables the longitudinal section of the conductive sliding block to be H-shaped;
the supporting plate is provided with a pull rod through hole, the rear end of the insulating pull rod is provided with a small-diameter section, a shaft shoulder is formed at the rear end of the insulating pull rod by the small-diameter section, and the shaft shoulder is used for being pressed backwards on the front side surface of the supporting plate; and the small-diameter section is provided with an external thread which is used for penetrating through the pull rod through hole and connecting the pull rod through hole into a threaded hole at the front end of the movable conducting rod.
Has the advantages that: by adopting the technical scheme, the fixed and conductive connection of the movable conducting rod and the conductive sliding block can be realized simultaneously after the insulating pull rod is fixedly connected with the movable conducting rod, the improvement of the uniformity of an electric field is facilitated, and the assembly is convenient.
As a preferred technical scheme: the conductive sliding block is in a flaring conical structure at the rear part of the supporting plate, and the front end of the movable conductive rod is in a necking conical structure and has the same taper as the conical structure on the conductive sliding block.
Has the advantages that: by adopting the technical scheme, the fixing reliability of the movable conducting rod and the conducting slide block is improved, the contact area of the movable conducting rod and the conducting slide block can be increased, the through-flow effect is ensured, and the heat productivity is reduced.
As a preferred technical scheme: the movable end outlet seat comprises a plate-shaped main body and a convex cylinder body, wherein the convex cylinder body is arranged on at least one side of the plate-shaped main body and is used for forming the guide hole together with the through hole in the plate-shaped main body.
Has the advantages that: by adopting the technical scheme, the guide length can be increased, the guide performance is ensured, and the material consumption of the movable end wire outlet seat can be avoided.
As a preferred technical scheme: the rear side of the plate-shaped main body is provided with the convex barrel, and the rear side of the plate-shaped main body is also provided with radiating fins.
Has the advantages that: by adopting the technical scheme, the radiating fins can effectively utilize the space at the position of the convex barrel body, and the radiating performance is further improved.
As a preferred technical scheme: the arc extinguish chamber unit for the gas-filled cabinet also comprises an arc extinguish chamber bracket, wherein the arc extinguish chamber bracket is of a cylindrical structure, and an inner cavity is used for accommodating the insulating pull rod;
the front end of the arc extinguish chamber bracket is provided with a connecting plate fixing structure for fixing the arc extinguish chamber bracket to a cabinet body connecting plate, and the cabinet body connecting plate is a connecting plate for fixing the arc extinguish chamber bracket to a cabinet body of an inflatable cabinet;
and the rear end of the arc extinguish chamber support is provided with a wire outlet seat fixing structure which is used for fixing the wire outlet seat at the movable end.
Has the advantages that: by adopting the technical scheme, the movable end wire outlet seat is convenient to assemble and fix, and the structure is simple.
As a preferred technical scheme: the front side of the movable end outgoing line seat is provided with radiating fins, the cylinder wall of the arc extinguish chamber support is provided with radiating holes, and at least one radiating hole corresponds to the radiating fins.
Has the advantages that: by adopting the technical scheme, the heat dissipation effect is favorably ensured.
As a preferred technical scheme: and the front side and/or the rear side of the static end outgoing line seat is/are provided with radiating fins.
Has the advantages that: by adopting the technical scheme, the heat dissipation performance at the static end wire outlet seat can be improved.
As a preferred technical scheme: the arc extinguish chamber supporting rod is a round rod manufactured by a vacuum impregnation molding process.
Has the advantages that: the technical scheme is mature in technology, low in cost and good in structural strength.
As a preferred technical scheme: metal thread inserts are arranged at two axial ends of the arc extinguish chamber supporting rod, and connecting holes are formed in two end faces of the arc extinguish chamber supporting rod by the metal thread inserts;
and the movable end wire outlet seat and the fixed end wire outlet seat are provided with bolt through holes for fixedly connecting with the arc extinguish chamber supporting rod through bolts and metal thread inserts.
Has the advantages that: the metal thread insert is convenient to manufacture, simple in structure and convenient to fix.
Drawings
Fig. 1 is a perspective view of an assembled state of an arc extinguishing chamber unit 1 for an inflatable cabinet and an operating mechanism according to the present invention;
figure 2 is a front view of the arc chute unit for the gas-filled cabinet of figure 1;
FIG. 3 is a top view of FIG. 2;
FIG. 4 is a cross-sectional view A-A of FIG. 3;
FIG. 5 is a partial enlarged view at B in FIG. 4;
FIG. 6 is a schematic structural view of a front wire outlet seat;
FIG. 7 is a schematic structural view of a rear wire outlet base;
FIG. 8 is a schematic view of a connection structure of the arc extinguish chamber bracket and the movable end wire outlet base;
fig. 9 is a left side view of fig. 8.
The names of the components corresponding to the corresponding reference numerals in the drawings are: 11. a vacuum arc-extinguishing chamber; 12. a movable conductive rod; 20. a cabinet body connecting plate; 21. a seal ring; 31. an operating mechanism; 32. fixing the rod; 33. a bellows; 34. an insulating pull rod; 35. a drive rod; 40. an arc extinguishing chamber bracket; 41. heat dissipation holes; 42. an inner boss; 50. a movable end wire outlet seat; 51. a plate-like body; 52. a convex barrel body; 53. a guide hole; 54. a watchband contact finger; 55. a conductive slider; 56. a support plate; 60. a stationary end outlet base; 61. a screw; 70. a heat dissipating fin; 80. arc extinguish chamber bracing piece.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the detailed description and specific examples, while indicating the preferred embodiment of the invention, are intended for purposes of illustration only and are not intended to limit the scope of the invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments of the present invention without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that relational terms such as "first" and "second," and the like, which may be present in the embodiments of the present invention, are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, the statement that "comprises an … …" is intended to indicate that there are additional elements of the same process, method, article, or apparatus that comprise the element.
In the description of the present invention, unless otherwise expressly specified or limited, the terms "mounted," "connected," and "connected" when they are used are to be construed broadly, e.g., as meaning a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, or may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
In the description of the present invention, unless otherwise specifically stated or limited, the term "provided" may be used in a broad sense, for example, the object of "provided" may be a part of the body, or may be arranged separately from the body and connected to the body, and the connection may be detachable or non-detachable. The specific meaning of the above terms in the present invention can be understood by those skilled in the art from specific situations.
The present invention will be described in further detail with reference to examples.
Embodiment 1 of the arc extinguishing chamber unit for the gas insulated switchgear of the present invention:
as shown in fig. 1 to 4, the arc extinguish chamber unit for the gas insulated switchgear includes a vacuum arc extinguish chamber 11, a cabinet connecting plate 20, an arc extinguish chamber bracket 40, a moving end wire outlet base 50, a static end wire outlet base 60, and an arc extinguish chamber supporting rod 80. The vacuum interrupter 11 is provided with three, forming three monopoles. As a known structure, the front end and the rear end of a vacuum arc extinguish chamber 11 are respectively a movable end and a static end, and the movable end is provided with a movable conducting rod 12.
As shown in fig. 2, fig. 3 and fig. 4, the cabinet connecting plate 20 is used for being fixed to the cabinet body of the inflatable cabinet, and is provided with a sealing ring 21 on the inner side thereof, so as to form a sealing fit with the side wall of the cabinet body of the inflatable cabinet. The operating mechanism 31 is fixedly connected to the left side of the cabinet connecting plate 20 in the figure through a fixing rod 32 and can be independently detached. As shown in fig. 5, the operating mechanism 31 is connected to a driving rod 35, the driving rod 35 is provided with a limit boss, the limit boss is welded and fixed to and sealed with the front end of the bellows 33, and the rear end of the bellows 33 is connected to the opening on the cabinet connecting plate 20 and sealed with the cabinet connecting plate 20, so that the vacuum interrupter 11 is located in the sealed inner cavity of the gas-filled cabinet. The driving rod 35 moves back and forth under the driving of the operating mechanism 31 and compresses or stretches the bellows 33, and the bellows 33 is used for maintaining the closed environment in the cabinet body. The operating mechanism 31 may be of the prior art, regardless of the technical solution to be protected, and will not be described in detail here.
As shown in fig. 4, an arc extinguishing chamber bracket 40 is connected to the rear side of the cabinet connecting plate 20, the arc extinguishing chamber bracket 40 is a cylindrical structure, and an inner cavity is used for accommodating the insulating pull rod 34. The front end of the arc extinguishing chamber support 40 is provided with a flange forming a connecting plate fixing structure for fixing to the cabinet connecting plate 20. As shown in fig. 8 and 9, the arc extinguishing chamber support 40 is provided at a rear end thereof with two inner bosses 42, the inner bosses 42 extend toward the inner side of the arc extinguishing chamber support 40, and are provided with bolt holes in the form of inner flanges, forming a wire outlet base fixing structure for fixing to the movable end wire outlet base 50 by screws.
The movable end wire outlet seat 50 is used for realizing wire outlet of the movable end of the vacuum arc-extinguishing chamber 11 and also used for supporting the movable end of the vacuum arc-extinguishing chamber 11 and guiding the movable conducting rod 12. As shown in fig. 6, the movable-end outlet base 50 includes a plate-shaped main body 51 and a protruding cylinder 52, the protruding cylinder 52 being disposed at a rear side of the plate-shaped main body 51 for forming a guide hole 53 together with a through hole on the plate-shaped main body 51. The guide hole 53 extends in the front-rear direction, and a finger groove is provided on the inner wall thereof, and a band finger 54 is fitted in the finger groove, for guiding fitting and electrically connecting with a corresponding conductive slider 55. The conductive slider 55 is a cylindrical structure, and a support plate 56 is arranged in the conductive slider 55, and the support plate 56 is located in the axial middle of the conductive slider 55, so that the longitudinal section of the conductive slider 55 is H-shaped. Of course, in other embodiments, the supporting plate 56 may be located at the front end of the conductive slider 55 or at the rear end of the conductive slider 55. As shown in fig. 4, the supporting plate 56 is provided with a through hole for a pull rod, the rear end of the insulating pull rod 34 is provided with a small diameter section, the small diameter section forms a shaft shoulder at the rear end of the insulating pull rod 34, and the shaft shoulder is used for pressing backwards on the front side surface of the supporting plate 56; and the small-diameter section is provided with an external thread which is used for penetrating through the pull rod through hole and is connected into a threaded hole at the front end of the movable conducting rod 12. The conductive slider 55 is in a flared cone structure at the rear part of the support plate 56, the front end of the movable conductive rod 12 is in a narrowed cone structure, the insulating pull rod 34 is screwed into the movable conductive rod 12 to tighten the movable conductive rod 12, and good conductive contact between the movable conductive rod 12 and the conductive slider 55 is realized by virtue of the cone structure. Of course, the movable terminal outlet seat 50 is made of metal.
The plate-shaped main body 51 is provided with heat radiating fins 70 on the rear side and the front side of the plate-shaped main body 51, and the heat radiating fins 70 on the rear side and the outer convex cylinder 52 on the rear side share the space on the rear side of the plate-shaped main body 51. The arc extinguish chamber bracket 40 is provided with heat radiating holes 41 on the cylinder wall, and part of the heat radiating holes 41 correspond to the heat radiating fins 70 on the front side of the plate-shaped main body 51 to form an air flow circulation path which is through up and down, so that heat radiation is facilitated.
The stationary outlet base 60 and the movable outlet base 50 are spaced from each other in a front-to-back direction, and in order to fix the vacuum interrupter 11, as shown in fig. 4, a screw hole is formed in the middle of the stationary outlet base 60 and is used for fixedly connecting the stationary end of the vacuum interrupter 11. As shown in fig. 2 and 7, similar to the movable terminal outlet block 50, the front and rear sides of the stationary terminal outlet block 60 are also provided with heat dissipating fins 70. Meanwhile, in order to facilitate the installation of the screw 61, the heat dissipation fin 70 at the middle part of the rear side of the fixed end outlet base 60 is shorter in size, so that a dismounting space is reserved for the screw 61. Of course, the stationary outlet base 60 is made of metal.
Four arc extinguish chamber support rods 80 are uniformly distributed around the vacuum arc extinguish chamber 11, and two ends of each arc extinguish chamber support rod 80 are fixedly connected with the movable end wire outlet seat 50 and the static end wire outlet seat 60 respectively. Specifically, the arc extinguish chamber support rod 80 is a round rod manufactured by a vacuum impregnation molding process, and is made of an insulating material, metal threaded inserts are arranged at two axial ends of the round rod, and the metal threaded inserts form connecting holes on two end faces of the arc extinguish chamber support rod 80; and the movable end wire outlet seat 50 and the fixed end wire outlet seat 60 are provided with bolt through holes for fixedly connecting with the arc extinguish chamber supporting rod 80 through bolts and metal thread inserts. The vacuum impregnation forming process is the existing process, is mature in technology and low in cost, and is beneficial to controlling the overall cost of the arc extinguish chamber unit for the gas-filled cabinet.
During assembly, the vacuum arc-extinguishing chamber 11 and the conductive sliding block 55 are fixedly connected through the insulating pull rod 34, and outgoing lines are conducted through the front outgoing line seat and the rear outgoing line seat, and the outgoing lines of the front outgoing line seat and the rear outgoing line seat respectively achieve leading-out of the movable end and the static end of the vacuum arc-extinguishing chamber 11. During operation, the operating mechanism 31 drives the movable conducting rod 12 to move through the insulating pull rod 34, so as to realize the opening and closing operation of the vacuum arc-extinguishing chamber 11.
In the above embodiment, the movable terminal outlet base 50 includes the plate-shaped main body 51 and the rear convex cylinder 52, so that the material consumption can be reduced while the guide matching length is increased, and the heat dissipation is facilitated; in other embodiments, the outer cylindrical body 52 may be separately provided on the front side of the plate-shaped main body 51 or provided on both the front side and the rear side of the plate-shaped main body 51, or the outer cylindrical body 52 may not be provided by increasing the thickness of the plate-shaped main body 51. In addition, in the above embodiment, the arc extinguish chamber support rod 80 is fixed with the movable end outlet base 50 and the fixed end outlet base 60 by means of metal threaded inserts at the end portions, and in other embodiments, flanges may be provided at both ends of the arc extinguish chamber support rod 80 and connected through the flanges. In the above embodiment, the conductive slider 55 is connected to the movable conductive rod 12 through the insulating rod 34, but in another embodiment, both ends of the conductive slider 55 may be connected to the insulating rod 34 and the movable conductive rod 12, respectively, for example, may be screwed to the insulating rod 34 and the movable conductive rod 12, respectively.
The above description is only a preferred embodiment of the present application, and not intended to limit the present application, the scope of the present application is defined by the appended claims, and all changes in equivalent structure made by using the contents of the specification and the drawings of the present application should be considered as being included in the scope of the present application.
Claims (10)
1. The arc extinguish chamber unit for the gas-filled cabinet is used for being assembled in a closed space in the gas-filled cabinet and comprises a vacuum arc extinguish chamber (11), wherein the front end and the rear end of the vacuum arc extinguish chamber (11) are respectively a movable end and a static end, and the movable end is provided with a movable conducting rod (12);
it is characterized by also comprising:
the movable end outgoing line seat (50) is provided with a guide hole (53), and the guide hole (53) extends along the front-back direction;
the conductive sliding block (55) is assembled in the guide hole (53) in a guiding mode and is in conductive connection with the movable end outgoing line seat (50) through a contact finger, and the conductive sliding block (55) is fixed on the movable conductive rod (12);
the static end wire outlet seat (60) is arranged at a front-back interval with the movable end wire outlet seat (50) and is used for fixedly connecting the static end of the vacuum arc extinguish chamber (11);
the arc extinguish chamber support rods (80) are uniformly distributed around the vacuum arc extinguish chamber (11), and two ends of each arc extinguish chamber support rod (80) are fixedly connected with the movable end wire outlet seat (50) and the static end wire outlet seat (60) respectively.
2. The arc extinguishing chamber unit for the gas insulated switchgear according to claim 1, characterized in that the conductive slider (55) is a cylindrical structure, inside which a support plate (56) is provided, the support plate (56) making the longitudinal section of the conductive slider (55) H-shaped;
a pull rod through hole is formed in the supporting plate (56), a small-diameter section is arranged at the rear end of the insulating pull rod (34), a shaft shoulder is formed at the rear end of the insulating pull rod (34) by the small-diameter section and is used for being pressed backwards on the front side face of the supporting plate (56); the small-diameter section is provided with an external thread which is used for penetrating through the pull rod through hole and is connected into a threaded hole at the front end of the movable conducting rod (12).
3. Arc extinguishing chamber unit for gas-filled cabinets according to claim 2, characterized in that the conductive slider (55) is in flared cone structure at the rear of the support plate (56), and the front end of the movable conductive rod (12) is in necked cone structure and has the same taper as the cone structure on the conductive slider (55).
4. Arc chute unit for gas insulated cabinets as claimed in claim 1, 2 or 3, characterized in that said moving end outlet seat (50) comprises a plate-like body (51) and a protruding cylinder (52), the protruding cylinder (52) being arranged on at least one side of the plate-like body (51) for forming said guiding hole (53) together with a through hole on the plate-like body (51).
5. Arc chute unit for gas insulated cabinets as claimed in claim 4, characterized in that said protruding cylinder (52) is provided on the rear side of said plate-like body (51), said plate-like body (51) being further provided with heat dissipating fins (70) on the rear side of the plate-like body (51).
6. The arc extinguish chamber unit for the gas insulated switchgear according to claim 1, 2 or 3, further comprising an arc extinguish chamber bracket (40), wherein the arc extinguish chamber bracket (40) is of a cylindrical structure, and an inner cavity is used for accommodating the insulating pull rod (34);
a connecting plate fixing structure is arranged at the front end of the arc extinguish chamber bracket (40) and is used for being fixed on a cabinet body connecting plate (20), and the cabinet body connecting plate (20) is used for being fixed on a cabinet body of the inflatable cabinet;
and the rear end of the arc extinguish chamber bracket (40) is provided with a wire outlet seat fixing structure which is used for being fixed on the movable end wire outlet seat (50).
7. The arc extinguish chamber unit for the gas insulated switchgear according to claim 6, wherein the front side of the movable terminal outgoing line seat (50) is provided with heat dissipation fins (70), the cylinder wall of the arc extinguish chamber support (40) is provided with heat dissipation holes (41), and at least one heat dissipation hole (41) corresponds to the heat dissipation fins (70).
8. Arc chute unit for gas insulated cabinets according to claim 1, 2 or 3, characterized in that the front and/or rear side of the dead end outlet socket (60) is provided with heat dissipating fins (70).
9. Arc chute unit for gas-filled cabinets according to claim 1, 2 or 3, characterized in that the arc chute support rods (80) are round bars made by a vacuum impregnation molding process.
10. The arc extinguish chamber unit for the gas insulated switchgear according to claim 1, 2 or 3, wherein the arc extinguish chamber support rod (80) is provided with metal threaded inserts at two axial ends, and the metal threaded inserts form connecting holes on two end faces of the arc extinguish chamber support rod (80);
and the movable end wire outlet seat (50) and the static end wire outlet seat (60) are provided with bolt through holes for fixedly connecting with the arc extinguish chamber supporting rod (80) through bolts and metal thread inserts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406660.1A CN112582204B (en) | 2020-12-04 | 2020-12-04 | Arc extinguishing chamber unit for gas-filled cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011406660.1A CN112582204B (en) | 2020-12-04 | 2020-12-04 | Arc extinguishing chamber unit for gas-filled cabinet |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN112582204A true CN112582204A (en) | 2021-03-30 |
| CN112582204B CN112582204B (en) | 2024-04-02 |
Family
ID=75127237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011406660.1A Active CN112582204B (en) | 2020-12-04 | 2020-12-04 | Arc extinguishing chamber unit for gas-filled cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112582204B (en) |
Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120181157A1 (en) * | 2009-09-29 | 2012-07-19 | Hubei Shengjia Wiring Co., Ltd. | Circuit breaker |
| CN203134670U (en) * | 2013-01-24 | 2013-08-14 | 平高集团有限公司 | Three-phase common-box vacuum circuit breaker and main loop structure thereof |
| CN203733703U (en) * | 2014-01-10 | 2014-07-23 | 常州太平洋电力设备(集团)有限公司 | Pole type vacuum load switch for inflatable ring network cabinet |
| WO2015043460A1 (en) * | 2013-09-24 | 2015-04-02 | 国家电网公司 | High-speed grounding switch and grounding switch assembly unit composed thereof |
| CN105374618A (en) * | 2015-11-27 | 2016-03-02 | 平高集团有限公司 | Combined type solid-sealed polar pole |
| CN105679593A (en) * | 2016-03-31 | 2016-06-15 | 许昌永新电气股份有限公司 | High-voltage vacuum circuit breaker pole |
| CN205452934U (en) * | 2015-12-11 | 2016-08-10 | 平高集团有限公司 | Inflatable cubical switchboard |
| US20160329180A1 (en) * | 2014-01-20 | 2016-11-10 | Zhejiang Ziguang Electric Appliance Co., Ltd | A Contact for a High-Voltage Vacuum Arc Extinguishing Chamber |
| CN106451191A (en) * | 2016-11-14 | 2017-02-22 | 国家电网公司 | Cubicle gas-insulated switchgear |
| WO2018107714A1 (en) * | 2016-12-14 | 2018-06-21 | 江苏南瑞帕威尔电气有限公司 | Integrally cast vacuum circuit breaker monopole |
| CN209169038U (en) * | 2019-01-25 | 2019-07-26 | 上海西门子高压开关有限公司 | The gentle body insulated metal closed switch equipment of arc extinguishing chamber component |
| KR20190101206A (en) * | 2018-02-22 | 2019-08-30 | 엘에스산전 주식회사 | Gas circuit breaker for gas insulation switchgear |
| CN110911216A (en) * | 2019-10-31 | 2020-03-24 | 许昌许继软件技术有限公司 | Open-type arc extinguish chamber pole and switch cabinet |
-
2020
- 2020-12-04 CN CN202011406660.1A patent/CN112582204B/en active Active
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20120181157A1 (en) * | 2009-09-29 | 2012-07-19 | Hubei Shengjia Wiring Co., Ltd. | Circuit breaker |
| CN203134670U (en) * | 2013-01-24 | 2013-08-14 | 平高集团有限公司 | Three-phase common-box vacuum circuit breaker and main loop structure thereof |
| WO2015043460A1 (en) * | 2013-09-24 | 2015-04-02 | 国家电网公司 | High-speed grounding switch and grounding switch assembly unit composed thereof |
| CN203733703U (en) * | 2014-01-10 | 2014-07-23 | 常州太平洋电力设备(集团)有限公司 | Pole type vacuum load switch for inflatable ring network cabinet |
| US20160329180A1 (en) * | 2014-01-20 | 2016-11-10 | Zhejiang Ziguang Electric Appliance Co., Ltd | A Contact for a High-Voltage Vacuum Arc Extinguishing Chamber |
| CN105374618A (en) * | 2015-11-27 | 2016-03-02 | 平高集团有限公司 | Combined type solid-sealed polar pole |
| CN205452934U (en) * | 2015-12-11 | 2016-08-10 | 平高集团有限公司 | Inflatable cubical switchboard |
| CN105679593A (en) * | 2016-03-31 | 2016-06-15 | 许昌永新电气股份有限公司 | High-voltage vacuum circuit breaker pole |
| CN106451191A (en) * | 2016-11-14 | 2017-02-22 | 国家电网公司 | Cubicle gas-insulated switchgear |
| WO2018107714A1 (en) * | 2016-12-14 | 2018-06-21 | 江苏南瑞帕威尔电气有限公司 | Integrally cast vacuum circuit breaker monopole |
| KR20190101206A (en) * | 2018-02-22 | 2019-08-30 | 엘에스산전 주식회사 | Gas circuit breaker for gas insulation switchgear |
| CN209169038U (en) * | 2019-01-25 | 2019-07-26 | 上海西门子高压开关有限公司 | The gentle body insulated metal closed switch equipment of arc extinguishing chamber component |
| CN110911216A (en) * | 2019-10-31 | 2020-03-24 | 许昌许继软件技术有限公司 | Open-type arc extinguish chamber pole and switch cabinet |
Non-Patent Citations (1)
| Title |
|---|
| 王小焕;于洪宇;汪宁;陈利民;: "40.5kV充气柜用真空断路器设计", 科学技术创新, no. 28 * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN112582204B (en) | 2024-04-02 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US20110204030A1 (en) | Retainer, vacuum interrupter, and electrical switching apparatus including the same | |
| CN114373652B (en) | Insulating cylinder device for vacuum circuit breaker | |
| CN102683100A (en) | Serial connection structure of high-voltage vacuum arc extinguish chambers | |
| CN212542260U (en) | Aerify combination of cabinet with solid utmost point post and three-station isolator and circuit breaker | |
| CN201893279U (en) | Circuit breaker pole and insulating cylinder thereof | |
| CN112582204A (en) | Arc extinguish chamber unit for gas-filled cabinet | |
| US6410867B1 (en) | Bolted conical loading joint system | |
| CN111627782A (en) | Combination of three-station disconnecting switch and circuit breaker suitable for inflating cabinet | |
| CN205609429U (en) | Aerify for cabinet heavy current and seal utmost point post admittedly | |
| CN110932159A (en) | Gas insulation switch cabinet | |
| CN201149960Y (en) | New type through-wall sleeve | |
| CN213366517U (en) | Combination of three-station disconnecting switch and circuit breaker suitable for inflating cabinet | |
| CN202434411U (en) | Solid-sealed polar pole of high-voltage vacuum circuit breaker | |
| CN112185751A (en) | Circuit breaker and gas insulated switchgear using the same | |
| CN114520128B (en) | Porcelain base structure of double-break vacuum arc-extinguishing chamber and double-break vacuum circuit breaker | |
| CN212485799U (en) | Open-type contact box and contact box assembly | |
| CN202205921U (en) | Electric connection structure and distribution cabinet unit with same | |
| CN219040332U (en) | Novel main loop structure device of heavy-current circuit breaker | |
| CN216818194U (en) | Circuit breaker structure | |
| GB2230143A (en) | Electrical power vacum interrupters | |
| CN211183105U (en) | Gas-insulated vacuum switch mechanism and gas-insulated switch cabinet | |
| CN220381996U (en) | Insulation mounting structure of C-GIS breaker for wind power equipment | |
| CN212304454U (en) | Insulating cover of solid insulated switch and solid insulated switch | |
| CN211428111U (en) | Vacuum arc extinguish chamber with heat dissipation structure | |
| CN214672454U (en) | Compact type insulating pull rod assembly for air insulated circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |