A kind of vacuum interruption mechanism that is used to strengthen electrical insulation properties
Technical field
The utility model belongs to high-voltage switch gear structure-design technique field, is specifically related to a kind of vacuum interruption mechanism that is used to strengthen electrical insulation properties.
Background technology
The structural representation of conventional high-tension on-load switch comprises housing, is arranged on vacuum interruption mechanism and operating mechanism in the housing; Described vacuum interruption mechanism comprises three vacuum interrupters, the moving conductive rod and the static conductive rod that link to each other with each vacuum interrupter; Described operating mechanism comprises a driving main shaft and three connecting lever assemblies, and an end of described each connecting lever assembly is arranged on the driving main shaft, and the other end is connected on the corresponding moving conductive rod; During divide-shut brake, described driving main shaft drives three moving moving conductive rod motions by three connecting lever component synchronization.This kind conventional high-tension on-load switch is set directly on the shell bottom wall owing to each vacuum interruption mechanism, connecting rod in each moving conductive rod and the corresponding connecting lever assembly and each static conductive rod are and adopt the metal manufacturing, and all expose outside, in order to guarantee the electrical insulation properties between each circuitry phase equipment, need be between the connecting lever assembly also being the enough big distance of reservation between each vacuum interruption mechanism, thereby cause this kind conventional high-tension on-load switch overall volume bigger, not only increase cost, brought all inconvenience also for transportation and installation.
The utility model content
The purpose of this utility model provides a kind of vacuum interruption mechanism that is used to strengthen electrical insulation properties that can effectively reduce the switch overall volume.
The technical scheme that realizes the utility model purpose is: a kind of vacuum interruption mechanism that is used to strengthen electrical insulation properties comprises vacuum interrupter, the moving conductive rod that links to each other with vacuum interrupter and static conductive rod, is arranged on the contact terminal and the insulation booth of moving conductive rod and static conductive rod outboard end; The top of described insulation booth is provided with opening, and its relative two side ends is provided with open-work; Described vacuum interrupter is arranged in the insulation booth, and described moving conductive rod and static conductive rod pass a corresponding open-work.
In the technique scheme, be arranged with insulated tube on moving conductive rod and the static conductive rod; Binding post on described moving conductive rod and the static conductive rod exposes described insulated tube.
In the technique scheme, described insulated tube and insulation booth are integral pieces.
In the technique scheme, comprise that also covering on insulation booth is provided with insulating shield on the end of moving conductive rod.
In the technique scheme, the bottom of described insulating shield and a side are equipped with opening.
In the technique scheme, described insulating shield adopts silicon rubber to make; Described insulating shield top is provided with suppending hole.
In the technique scheme, comprise that also covering on insulation booth is provided with shadow shield on the end of static conductive rod.
In the technique scheme, described shadow shield adopts silicon rubber to make; One side of described shadow shield is provided with opening, and another side relative with it is provided with open-work; Described shadow shield directly is set on the box body of insulation booth; The described insulated tube that is enclosed within on the static conductive rod passes the open-work of described shadow shield.
The utlity model has positive effect:
(1) in the utility model, the top of described insulation booth is provided with opening, and its relative two side ends is provided with open-work; Described vacuum interrupter is arranged in the insulation booth, and described moving conductive rod and static conductive rod pass a corresponding open-work.This kind structure can cover the major part of the connecting rod in the exposed moving conductive rod of script, static conductive rod and the connecting lever assembly, thereby improve the electrical insulation properties between each adjacent circuitry phase equipment, effectively reduce the mounting distance between each circuitry phase equipment, thereby reduce the switch overall volume.
(2) in the utility model, be arranged with insulated tube on moving conductive rod and the static conductive rod; Binding post on described moving conductive rod and the static conductive rod exposes described insulated tube; More the structure of You Huaing is that described insulated tube and corresponding insulation box are made of one part.This kind structure has further improved the electrical insulation properties between each circuitry phase equipment in exposed moving conductive rod and static conductive rod also are wrapped in originally.
(3) in the utility model, also be provided with and cover on insulation booth and be provided with insulating shield on the end of moving conductive rod.Because the particularity of this kind high voltage load switch structure, its connecting lever assembly is arranged on the top of corresponding vacuum interruption mechanism, and the connecting rod in the connecting lever assembly need move reciprocatingly, so for vacuum interruption mechanism is installed, for the connecting lever assembly is installed on the moving conductive rod, and reserve enough spaces for the connecting rod in the connecting lever assembly, so the top of each insulation booth need reserve opening, but reserving this opening compares with totally enclosed type, influence the electrical insulation properties between each circuitry phase equipment to a certain extent, in order to overcome this point, be used to cover on the insulating shield that respectively insulate on the box body so specially in housing, be provided with, with its part opening that covers each insulation booth top, improve the electrical insulation properties between each circuitry phase equipment as far as possible.
(4) in the utility model, reserve enough spaces in order to give the connecting rod in the connecting lever assembly, so need select the comparatively unique insulating shield of structure for use, the bottom of described insulating shield and a side are equipped with opening.It is in order can be set on the insulation booth top that the insulating shield bottom is provided with opening, and the part opening on insulation booth top is covered on wherein; It is in order to cover on the connecting rod in the connecting lever assembly wherein, can to allow all the other connecting lever assemblies stretch out from this insulating cover again, being unlikely to influence the regular event of connecting lever that one side of insulating shield is provided with opening.
(5) in the utility model, because the general silicon rubber that adopt of insulating shield are made more, its material is softer, so the spy preferably is provided with suppending hole on the top of insulating shield, fix the upper end of each insulating cover by hang, thereby effectively simplify the mounting structure of insulating shield.
(6) in the utility model, also be provided with and cover on insulation booth and be provided with shadow shield on the end of static conductive rod.This shadow shield can match with above-mentioned insulating shield, and the opening on capping insulation booth top further improves the electrical insulation properties between each circuitry phase equipment as much as possible.
(7) in the utility model, a side of described shadow shield is provided with opening, and another side relative with it is provided with open-work; Described shadow shield directly is set on the box body of insulation booth; The described insulated tube that is enclosed within on the static conductive rod passes the open-work of described shadow shield.This shadow shield can directly be set on the insulation booth box body, encloses the vestibule size by default its, can tightly be stuck on the insulation booth box body, so its installation is comparatively convenient.
Description of drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of perspective view of insulating shield in the vacuum interruption mechanism shown in Figure 1;
Fig. 3 is a kind of perspective view of shadow shield in the vacuum interruption mechanism shown in Figure 1;
A kind of perspective view that Fig. 4 is a shadow shield shown in Figure 3 when another angle is observed;
Fig. 5 is a kind of application state schematic diagram of the present utility model.
Be labeled as shown in the accompanying drawing: housing 1, vacuum interruption mechanism 2, vacuum interrupter 21, moving conductive rod 22, static conductive rod 23, binding post 24, operating mechanism 3, driving main shaft 31, connecting lever assembly 32, connecting rod 321, insulation booth 4, opening 41, insulated tube 43, insulating shield 5, opening 51, suppending hole 52, fixed lever 6, shadow shield 7, opening 71, open-work 72.
Embodiment
(embodiment 1)
Fig. 1 to Fig. 5 has shown first kind of embodiment of the present utility model, and wherein, Fig. 1 is a kind of structural representation of the present utility model; Fig. 2 is a kind of perspective view of insulating shield in the vacuum interruption mechanism shown in Figure 1; Fig. 3 is a kind of perspective view of shadow shield in the vacuum interruption mechanism shown in Figure 1; A kind of perspective view that Fig. 4 is a shadow shield shown in Figure 3 when another angle is observed; Fig. 5 is a kind of application state schematic diagram of the present utility model.
Present embodiment is a kind of high voltage load switch, sees Fig. 1 to Fig. 5, comprises insulation booth 4, vacuum interrupter 21, the moving conductive rod 22 that links to each other with vacuum interrupter 21 and static conductive rod 23, is arranged on the contact terminal 24 of moving conductive rod 22 and static conductive rod 23 outboard ends; The top of described each insulation booth 4 is provided with opening 41, and its relative two side ends is provided with open-work; Described vacuum interrupter 21 is arranged in the insulation booth 4, described moving conductive rod 22 and static conductive rod 23 pass the open-work of corresponding insulation booth 4 two side ends, and each moving conductive rod 22 and static conductive rod 23 stretch out on the part body of rod of insulation booth 4 open-works and be arranged with insulated tube 43; The binding post 24 of described each moving conductive rod 22 and static conductive rod 23 exposes described insulated tube 43.
In the present embodiment, described insulated tube 43 is integral pieces with insulation booth 4.
See Fig. 1, also be provided with insulating shield 5 and shadow shield 7 on the insulation booth 4 of present embodiment, described insulating shield 5 covers on each insulation booth 4 and is provided with on the end of moving conductive rod 22; Described shadow shield 7 covers on the other end that is provided with static conductive rod 23 of each insulation booth.
Described each vacuum interrupter 21 and each moving conductive rod 22 all are arranged in the corresponding insulation booth 4 with the link of a corresponding connecting lever assembly 32, described moving conductive rod 22 and static conductive rod 23 pass the open-work of corresponding insulation booth 4 two side ends, and each moving conductive rod 22 and static conductive rod 23 stretch out on the part body of rod of insulation booth 4 open-works and be arranged with insulated tube 43; The binding post 24 of described each moving conductive rod 22 and static conductive rod 23 exposes described insulated tube 43.
See Fig. 2, described insulating shield 5 adopts silicon rubber to make; The bottom of described insulating shield 5 and a side are equipped with opening 51, and its top is provided with suppending hole 52.
See Fig. 3 and Fig. 4, described shadow shield 7 adopts silicon rubber to make; One side of described shadow shield 7 is provided with opening 71, and another side relative with it is provided with open-work 72; Described shadow shield 7 directly is set on the box body of insulation booth 4; The described insulated tube 43 that is enclosed within on the static conductive rod 23 passes the open-work 72 of described shadow shield 7.
Fig. 5 is a kind of high-voltage switch gear that adopts present embodiment to make, and has shown a kind of application mode of the present utility model.This kind high-voltage switch gear comprises housing 1, is arranged on vacuum interruption mechanism 2 and operating mechanism 3 in the housing 1; Described vacuum interruption mechanism 2 comprises three vacuum interrupters 21, the moving conductive rod 22 and the static conductive rod 23 that link to each other with each vacuum interrupter 21 and is arranged on each moving conductive rod 22 and the binding post 24 of static conductive rod 23 outboard ends; Described operating mechanism 3 comprises driving main shaft 31 and three connecting lever assemblies 32 with connecting rod 321, and an end of described each connecting lever assembly 32 is arranged on the driving main shaft 31, and the other end also is that connecting rod 321 is connected on the corresponding moving conductive rod 22; Be provided with three insulation booths 4 in the described housing 1, the top of described each insulation booth 4 is provided with opening 41, and its relative two side ends is provided with open-work; Described each vacuum interrupter 21 and each moving conductive rod 22 all are arranged in the corresponding insulation booth 4 with the link of a corresponding connecting lever assembly 32, described moving conductive rod 22 and static conductive rod 23 pass the open-work of corresponding insulation booth 4 two side ends, and each moving conductive rod 22 and static conductive rod 23 stretch out on the part body of rod of insulation booth 4 open-works and be arranged with insulated tube 43; The binding post 24 of described each moving conductive rod 22 and static conductive rod 23 exposes described insulated tube 43.Be provided with insulating shield 5, hanger bar 6 and shadow shield 7 in the described housing 1.Described insulating shield 5 covers on each insulation booth 4 and is provided with on the end of moving conductive rod 22; Described shadow shield 7 covers on the other end that is provided with static conductive rod 23 of each insulation booth.Described insulating shield 5 adopts silicon rubber to make, and its bottom and a side are equipped with opening 51, and its top is provided with suppending hole 52, is provided with the fixed lever 6 that is used for fixing insulating shield 5 in the described housing 1, and described fixed lever 6 passes the suppending hole 52 on the insulating shield 5.Described insulating shield 5 covers on each connecting lever assembly 32 and the connecting rod 321 that moving conductive rod 22 is connected simultaneously.One side of described shadow shield 7 is provided with opening 71, and another side relative with it is provided with open-work 72; Described shadow shield 7 directly is set on the box body of a corresponding insulation booth 4; The described insulated tube 43 that is enclosed within on the static conductive rod 23 passes the open-work 72 of described shadow shield 7.Because present embodiment has strengthened the electrical insulation properties between each circuitry phase equipment, so this kind high voltage load switch, can reduce the spacing distance between each circuitry phase equipment compared to the conventional high-tension on-load switch, thereby effectively dwindles the switch overall volume.
Present embodiment has positive effect:
(1) in the present embodiment, the top of described insulation booth 4 is provided with opening 41, and its relative two side ends is provided with open-work; Described vacuum interrupter 21 is arranged in the insulation booth 4, and described moving conductive rod 22 and static conductive rod 23 pass a corresponding open-work.This kind structure can cover the major part of the connecting rod in the exposed moving conductive rod of script, static conductive rod and the connecting lever assembly, thereby improve the electrical insulation properties between each adjacent circuitry phase equipment, effectively reduce the mounting distance between each circuitry phase equipment, thereby reduce the switch overall volume.
(2) in the present embodiment, be arranged with insulated tube on moving conductive rod and the static conductive rod; Binding post 24 on described moving conductive rod 22 and the static conductive rod 23 exposes described insulated tube 43; More the structure of You Huaing is that described insulated tube and corresponding insulation box are made of one part.This kind structure has further improved the electrical insulation properties between each circuitry phase equipment in exposed moving conductive rod and static conductive rod also are wrapped in originally.
(3) in the present embodiment, also be provided with and cover on insulation booth 4 and be provided with insulating shield on the end of moving conductive rod 22.Because the particularity of this kind high voltage load switch structure, its connecting lever assembly is arranged on the top of corresponding vacuum interruption mechanism, and the connecting rod in the connecting lever assembly need move reciprocatingly, so for vacuum interruption mechanism is installed, for the connecting lever assembly is installed on the moving conductive rod, and reserve enough spaces for the connecting rod in the connecting lever assembly, so the top of each insulation booth need reserve opening, but reserving this opening compares with totally enclosed type, influence the electrical insulation properties between each circuitry phase equipment to a certain extent, in order to overcome this point, be used to cover on the insulating shield that respectively insulate on the box body so specially in housing, be provided with, with its part opening that covers each insulation booth top, improve the electrical insulation properties between each circuitry phase equipment as far as possible.
(4) in the present embodiment, reserve enough spaces in order to give the connecting rod in the connecting lever assembly, so need select the comparatively unique insulating shield of structure for use, the bottom of described insulating shield and a side are equipped with opening.It is in order can be set on the insulation booth top that the insulating shield bottom is provided with opening, and the part opening on insulation booth top is covered on wherein; It is in order to cover on the connecting rod in the connecting lever assembly wherein, can to allow all the other connecting lever assemblies stretch out from this insulating cover again, being unlikely to influence the regular event of connecting lever that one side of insulating shield is provided with opening.
(5) in the present embodiment, because the general silicon rubber that adopt of insulating shield are made more, its material is softer, so the spy preferably is provided with suppending hole 52 on the top of insulating shield 5, fix the upper end of each insulating cover by hang, thereby effectively simplify the mounting structure of insulating shield.
(6) in the present embodiment, also be provided with and cover on insulation booth 4 and be provided with shadow shield on the end of static conductive rod 23.This shadow shield can match with above-mentioned insulating shield, and the opening on capping insulation booth top further improves the electrical insulation properties between each circuitry phase equipment as much as possible.
(7) in the present embodiment, a side of described shadow shield 7 is provided with opening 71, and another side relative with it is provided with open-work 72; Described shadow shield 7 directly is set on the box body of insulation booth 4; The described insulated tube 43 that is enclosed within on the static conductive rod 23 passes the open-work 72 of described shadow shield 7.This shadow shield can directly be set on the insulation booth box body, encloses the vestibule size by default its, can tightly be stuck on the insulation booth box body, so its installation is comparatively convenient.
Obviously, the foregoing description of the present utility model only is for the utility model example clearly is described, and is not to be qualification to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here need not also can't give exhaustive to all execution modes.And these belong to conspicuous variation or the change that connotation of the present utility model extends out and still belong to protection range of the present utility model.