CN202260234U - Grounding transitional plate and grounding switch employing same - Google Patents
Grounding transitional plate and grounding switch employing same Download PDFInfo
- Publication number
- CN202260234U CN202260234U CN 201120240384 CN201120240384U CN202260234U CN 202260234 U CN202260234 U CN 202260234U CN 201120240384 CN201120240384 CN 201120240384 CN 201120240384 U CN201120240384 U CN 201120240384U CN 202260234 U CN202260234 U CN 202260234U
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- shaped base
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Abstract
The utility model discloses a grounding transitional plate and a grounding switch employing the same. The grounding switch comprises a casing and a crank arm box, wherein a driving crank arm and a three-phase movable contact driven by the driving crank arm are arranged in the crank arm box; an intermediate conductive contact in conductive contact with the three-phase movable contact is arranged in the casing; a three-phase fixed contact in make-and-break match with the three-phase movable contact is also arranged in the casing; the grounding transitional plate is arranged between the casing and the crank arm box and comprises a conductive platy matrix; three penetration holes for the three-phase movable contact to penetrate are formed on the platy matrix in the position corresponding to the three-phase movable contact; a mounting part for fixedly mounting the three-phase intermediate conductive contact on the grounding transitional plate is arranged on the circumferential outer side of each penetration hole on the platy matrix; and a grounding lead-out part for grounding is also arranged on the platy matrix. In the utility model, the grounding transitional plate replaces a grounding insulator of a conventional grounding switch, so that cracking of the grounding insulator is effectively avoided, and the security of the grounding switch is improved.
Description
Technical field
The utility model belongs to high voltage electrical apparatus technical field, and employed ground connection rebound when relating to a kind of linear earthed switch safety ground also relates to a kind of earthed switch simultaneously.
Background technology
The gases at high pressure insulated switching installation of three-phase combined type is the straight line ground connection place that linear earthed switch is mainly used in major loop on the GIS product in the electric power system at present.Linear earthed switch will satisfy following function: 1, working earthing suits static, em induced current meter and closes the ability of closing peak current; 2, when measuring resistance and debug circuit breaker characteristic, major loop and body insulation facilitate the introduction of signal.Linear earthed switch mainly comprises housing and connecting lever box among the used high pressure GIS; Between housing and connecting lever box, be provided with disk insulator as linear ground insulation; In disk insulator, be embedded with the three-phase center conductor; Be provided with the driving connecting lever in the connecting lever box, be used for driving the three-phase moving contact action of connecting lever box, in housing, be provided with three middle contacts of three-phase that are used for reliably contacting conducting with three-phase moving contact; Three-phase moving contact in the connecting lever box pass linear ground insulation all the time with three-phase in the middle of conductive contact reliably conduct electricity and contact; In housing, also be provided with and be used for the three-phase fixed contact that is connected with three-phase moving contact conduction, driving when three-phase moving contact under the driving of connecting lever and moving three-phase fixed contact conductive communication or disconnection in three-phase moving contact and the housing; Thereby, when middle conductive contact and three-phase fixed contact conductive communication, be grounded middle conductive contact and three-phase fixed contact conductive communication or disconnection.After three-phase moving contact, the middle conductive contact of three-phase and corresponding fixed contact conduction will contact; Three-phase center conductor in linear ground insulation reliably conducts electricity with the three-phase fixed contact through conductive contact in the middle of the three-phase and contacts, and the three-phase center conductor is drawn in the port of drawing of earthed switch.Because it is bigger to constitute the expansion rate coefficient difference of sub material of linear ground insulation and center conductor material; When the above-mentioned earthed switch that is equipped with this linear ground insulation is applied to low temperature environment following time; Along with temperature Change; Linear ground insulation occurs easily and cause cracking, influence the normal use of linear earthed switch because the internal stress that produced of expanding with heat and contract with cold is inhomogeneous.
The utility model content
The purpose of the utility model be to provide a kind of simple in structure, do not allow to be subject to external environment condition and cause ftractureing be used for ground connection rebound with middle conductive contact conductive earthing; The earthed switch of the above-mentioned ground connection rebound of use that while the utility model also provides.
For realizing above-mentioned purpose; The ground connection rebound that the utility model provided adopts following technical scheme: a kind of ground connection rebound; The panel-shaped base body that comprises conduction; On panel-shaped base body, be provided with three perforation that the three-phase moving contact that is used to supply earthed switch passes, on panel-shaped base body, be useful on the installation portion of conductive contact in the middle of the three-phase of fixed installation earthed switch, also be provided with the ground connection lead division that is used for ground connection on the described panel-shaped base body corresponding to the circumferential arranged outside of each perforation.
Described panel-shaped base body is a waist shape matrix, and described three perforation are arranged along the long axis direction of waist shape matrix successively.
On the two sides of described panel-shaped base body in week of each perforation laterally respectively correspondence offer closure gasket groove, described closure gasket groove be positioned at be used for fixing on the said panel-shaped base body install in the middle of conductive contact installation portion week laterally.
The earthed switch that the utility model provided adopts technique scheme: a kind of earthed switch that uses the ground connection rebound; Comprise housing and connecting lever box; In the connecting lever box, be provided with the three-phase moving contact that drives connecting lever and drive by the driving connecting lever; Described three-phase moving contact extends in the housing; In housing, be furnished with the middle conductive contact that contacts with three-phase moving contact conduction, also be provided with in the described housing and be used for the three-phase fixed contact that cooperates with the three-phase moving contact break-make, be provided with the ground connection rebound between described housing and the connecting lever box; This ground connection rebound comprises the panel-shaped base body of conduction; On panel-shaped base body, be provided with three perforation that supply three-phase moving contact to pass in described three-phase moving contact opposite position place, on the panel-shaped base body in the middle of the circumferential arranged outside of each perforation has said three-phase conductive contact be fixedly mounted on the installation portion on the ground connection rebound, also be provided with the ground connection lead division that is used for ground connection on the described panel-shaped base body.
Described panel-shaped base body is a waist shape matrix, and described three perforation are arranged along the long axis direction of waist shape matrix successively.
On the two sides of described panel-shaped base body in week of each perforation laterally respectively correspondence offer closure gasket groove; Described closure gasket groove be positioned at be used for fixing on the said panel-shaped base body install in the middle of conductive contact installation portion week laterally, in described closure gasket groove, be provided with sealing ring.
The beneficial effect of the utility model is: the ground connection rebound that the utility model provided comprises the panel-shaped base body of conduction; On panel-shaped base body, be provided with three perforation that supply three-phase moving contact to pass; On panel-shaped base body, also be provided with the installation portion of conductive contact in the middle of being used to install; And on described panel-shaped base body, also be provided with the ground connection lead division; Like this when between housing that the ground connection rebound is installed in earthed switch and the connecting lever box, the three-phase moving contact in the connecting lever box from three perforation of panel-shaped base body, pass and with three-phase in the middle of the conductive contact sliding conduction contact, under the effect of driving connecting lever; The break-make of the three-phase fixed contact in three-phase moving contact realization and the housing; When three-phase moving contact and the conducting of three-phase fixed contact, the three-phase fixed contact is conductive contact, the safety ground of ground connection rebound in the middle of three-phase moving contact, three-phase, is grounded the safety ground function of switch.Adopt the ground connection lead division of ground connection rebound as earthed switch; Effectively avoided the cracking of original ground insulation; The ground connection rebound is a conductive plate; It can difference variation not occur and CRACKING ACCIDENT occur because of the earthed switch applied location, has improved the fail safe of earthed switch, has prolonged the useful life of earthed switch.
The ground connection rebound that the utility model provided is applied on the earthed switch; Heat is not applicable to the safety ground switch; Middle conductive contact is fixedly mounted on the ground connection rebound; Three-phase moving contact extends into to housing and with the middle conductive contact sliding conduction of three-phase through the perforation on the ground connection rebound and pegs graft, and drives the break-make that connecting lever drives the three-phase fixed contact in three-phase moving contact action realization three-phase moving contact and the housing, when three-phase moving contact contacts conducting with the three-phase fixed contact; The three-phase fixed contact is realized safety ground through conductive contact, ground connection rebound in the middle of three-phase moving contact, the three-phase, guarantees the fail safe of earthed switch.
Description of drawings
Fig. 1 is a kind of structural representation of earthed switch;
Fig. 2 is that K among Fig. 1 is to view;
Fig. 3 is an A-A place cutaway view among Fig. 1.
Embodiment
Shown in Fig. 1, Fig. 2, Fig. 3; Between housing 3 and connecting lever box 4, be provided with ground connection rebound 1; This ground connection rebound comprises the panel-shaped base body of conduction, and panel-shaped base body is a waist shape panel-shaped base body in the present embodiment, and panel-shaped base body is provided with three perforation 10 that the three-phase moving contact that is used to supply earthed switch passes; Described three perforation 10 are arranged along the long axis direction of waist shape matrix successively; On panel-shaped base body, be useful on the installation portion 11 of conductive contact in the middle of the three-phase of fixed installation earthed switch corresponding to the circumferential arranged outside of each perforation, the installation portion 11 here is a mounting flange, and mounting flange is provided with screw mounting hole; The ground connection rebound is provided with the ground connection lead division that is used for ground connection, and the ground connection lead division here is arranged on the position of being convenient to ground connection and gets final product.
Because the ground connection rebound is to be applied on the earthed switch; And because the three-phase moving contact in the connecting lever box of earthed switch stretches out from the connecting lever box and stretches in the housing; So just need offer pilot hole at the opposite position place of housing and connecting lever box; Need between ground connection rebound and housing, connecting lever box, hermetically-sealed construction be set when just the ground connection rebound being assemblied between housing and the connecting lever box when being used for conducting ground connection like this; Because three perforation corresponding to three-phase moving contact on the ground connection rebound are corresponding with the pilot hole on connecting lever box and the housing; So on the two sides of panel-shaped base body in week of each perforation laterally respectively correspondence offer closure gasket groove; Closure gasket groove be positioned at be used for fixing on the said panel-shaped base body install in the middle of conductive contact installation portion week laterally, when the ground connection rebound being assemblied between housing and the connecting lever box, sealing ring being installed in the closure gasket groove of ground connection rebound can being realized sealing.
Like Fig. 1, Fig. 2, shown in Figure 3; A kind of earthed switch; Comprise connecting lever box 4 and housing 3, between connecting lever box 4 and housing 3, be provided with the ground connection rebound, in connecting lever box 4, be provided with the three-phase moving contact assembling that drives connecting lever 9 and drive by driving connecting lever 9; The drive mechanism that the three-phase moving contact assembling comprises and the driving connecting lever is in transmission connection and the three-phase moving contact 5 of synchronization action; In housing 3, be provided with and be used for conductive contact 2 in the middle of the three-phase that corresponding conduction with the three-phase moving contact of connecting lever box pegs graft, conductive contact 2 is fixedly installed on the ground connection rebound in the middle of the three-phase here, in housing, also is provided with to be used for the three-phase fixed contact (not shown) that cooperates with the three-phase moving contact break-make; The structure of the ground connection rebound in the present embodiment is identical with the structure of above-mentioned ground connection rebound embodiment; Repeat no more at this, extend in the housing, then be provided with at the opposite position place of connecting lever box and housing like this and be used to the pilot hole that supplies three-phase moving contact to pass because the three-phase moving contact in the connecting lever box stretches out the connecting lever box and makes; The ground connection rebound is assemblied between connecting lever box and the housing; The perforation 10 that is used on the ground connection rebound this moment to supply three-phase moving contact to pass is corresponding with the pilot hole on connecting lever box and the housing, in order to guarantee the earthed switch performance, between ground connection rebound and connecting lever box and housing, hermetically-sealed construction is set; The hermetically-sealed construction here comprises the closure gasket groove on the two sides of the panel-shaped base body that is arranged on the ground connection rebound, and in closure gasket groove, is provided with sealing ring 6.And the ground connection lead division of ground connection rebound is provided with ground connection assembling 8 and is used to be grounded.
When the earthed switch in the foregoing description uses; Because conducting electricity with the middle conductive contact of the three-phase in the housing all the time, three-phase moving contact contacts; And middle conductive contact all the time with ground connection rebound conductive communication; Like this when drive connecting lever drive the three-phase moving contact action with housing in three-phase fixed contact (not drawing among the figure) when contacting conducting; The three-phase fixed contact is realized conductive earthing through conductive contact, ground connection rebound in the middle of three-phase moving contact, the three-phase, and all contacts with ground connection rebound conduction with housing because of the connecting lever box, thereby has realized the safety ground of connecting lever box and housing.
Earthed switch in the present embodiment is the fail safe earthed switch; Be linear earthed switch that need not the number of winning the confidence; So adopt the ground connection rebound can play the effect of ground insulation; Under the prerequisite that guarantees the earthed switch operate as normal, effectively avoided the cracking of ground insulation, the fail safe and the useful life thereof of having improved earthed switch.
Claims (6)
1. ground connection rebound; It is characterized in that: the panel-shaped base body that comprises conduction; On panel-shaped base body, be provided with three perforation that the three-phase moving contact that is used to supply earthed switch passes; On panel-shaped base body, be useful on the installation portion of conductive contact in the middle of the three-phase of fixed installation earthed switch, also be provided with the ground connection lead division that is used for ground connection on the described panel-shaped base body corresponding to the circumferential arranged outside of each perforation.
2. ground connection rebound according to claim 1 is characterized in that: described panel-shaped base body is a waist shape matrix, and described three perforation are arranged along the long axis direction of waist shape matrix successively.
3. ground connection rebound according to claim 1 and 2; It is characterized in that: on the two sides of described panel-shaped base body in week of each perforation laterally respectively correspondence offer closure gasket groove, described closure gasket groove be positioned at be used for fixing on the said panel-shaped base body install in the middle of conductive contact installation portion week laterally.
4. earthed switch; Comprise housing and connecting lever box; In the connecting lever box, be provided with the three-phase moving contact that drives connecting lever and drive by the driving connecting lever; Described three-phase moving contact extends in the housing; In housing, be furnished with the middle conductive contact that contacts with three-phase moving contact conduction, also be provided with in the described housing and be used for the three-phase fixed contact that cooperates with the three-phase moving contact break-make, it is characterized in that: be provided with the ground connection rebound between described housing and the connecting lever box; This ground connection rebound comprises the panel-shaped base body of conduction; On panel-shaped base body, be provided with three perforation that supply three-phase moving contact to pass in described three-phase moving contact opposite position place, on the panel-shaped base body in the middle of the circumferential arranged outside of each perforation has said three-phase conductive contact be fixedly mounted on the installation portion on the ground connection rebound, also be provided with the ground connection lead division that is used for ground connection on the described panel-shaped base body.
5. earthed switch according to claim 4 is characterized in that: described panel-shaped base body is a waist shape matrix, and described three perforation are arranged along the long axis direction of waist shape matrix successively.
6. according to claim 4 or 5 described earthed switches; It is characterized in that: on the two sides of described panel-shaped base body in week of each perforation laterally respectively correspondence offer closure gasket groove; Described closure gasket groove be positioned at be used for fixing on the said panel-shaped base body install in the middle of conductive contact installation portion week laterally, in described closure gasket groove, be provided with sealing ring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120240384 CN202260234U (en) | 2011-07-08 | 2011-07-08 | Grounding transitional plate and grounding switch employing same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120240384 CN202260234U (en) | 2011-07-08 | 2011-07-08 | Grounding transitional plate and grounding switch employing same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202260234U true CN202260234U (en) | 2012-05-30 |
Family
ID=46121419
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120240384 Expired - Fee Related CN202260234U (en) | 2011-07-08 | 2011-07-08 | Grounding transitional plate and grounding switch employing same |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202260234U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105513846A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Breaker, transmission structure and transmission shaft |
| CN106611937A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Insulation device for grounding leading-out of three-position isolation grounding switch |
| CN110444435A (en) * | 2019-08-14 | 2019-11-12 | 新东北电气集团高压开关有限公司 | A kind of high pressure inspection earthing switch |
-
2011
- 2011-07-08 CN CN 201120240384 patent/CN202260234U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106611937A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Insulation device for grounding leading-out of three-position isolation grounding switch |
| CN106611937B (en) * | 2015-10-27 | 2018-10-12 | 上海思源高压开关有限公司 | A kind of seal drawn for three-station isolating grounding switch ground connection |
| CN105513846A (en) * | 2015-11-27 | 2016-04-20 | 平高集团有限公司 | Breaker, transmission structure and transmission shaft |
| CN110444435A (en) * | 2019-08-14 | 2019-11-12 | 新东北电气集团高压开关有限公司 | A kind of high pressure inspection earthing switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120530 Termination date: 20190708 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |