CN203812787U - Grounding switch - Google Patents
Grounding switch Download PDFInfo
- Publication number
- CN203812787U CN203812787U CN201420148046.3U CN201420148046U CN203812787U CN 203812787 U CN203812787 U CN 203812787U CN 201420148046 U CN201420148046 U CN 201420148046U CN 203812787 U CN203812787 U CN 203812787U
- Authority
- CN
- China
- Prior art keywords
- delays
- elastic rod
- auxiliary contact
- delay
- contact
- 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.)
- Expired - Lifetime
Links
- 230000000979 retarding effect Effects 0.000 claims abstract description 12
- 230000001934 delay Effects 0.000 claims description 34
- 238000005452 bending Methods 0.000 claims description 25
- 230000005489 elastic deformation Effects 0.000 abstract description 10
- 230000003068 static effect Effects 0.000 abstract 2
- 238000004880 explosion Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 6
- 230000006698 induction Effects 0.000 description 5
- 230000003111 delayed effect Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- 238000013459 approach Methods 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
Landscapes
- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a grounding switch comprising a static contact (1) and a moving contact (2) which are matched with each other, the moving contact (2) is fixedly provided with at least one elastic rod (3), the top (11) of the static contact (1) is fixedly provided with an auxiliary contact device, and the auxiliary contact device is provided with a retarding device for stopping the elastic rods (3) which do not generate elastic deformation. According to the utility model, the elastic rods and the retarding device which are matched with one another are added, air blowout is achieved, the grounding switch is simple in structure, explosion chambers are not needed, and therefore the grounding switch is low in cost, convenient to install and simple to maintain.
Description
Technical field
The utility model relates to transmission line correlative technology field, particularly a kind of earthed switch.
Background technology
In two or more pieces altogether in tower or the contiguous overhead transmission line being arranged in parallel, when after a certain time or several times line outage, due to it with adjacent alive circuit between produce electromagnetic induction and electrostatic induction, on the loop of power failure, will produce induced voltage and induced current.Therefore, should install the device with opening and closing induction current ability additional for the earthed switch of these circuits.
In recent years the earthed switch of high voltage ground switch and part isolating switch attaching is proposed to the performance requirement of opening and closing induction current more and more.
What the device of the opening and closing induction current that the product of most operations installs additional at present all used is the auxiliary system with arc control device.
Owing to having increased arc control device, therefore the cost of earthed switch significantly rises.
Utility model content
Based on this, be necessary that the device of the opening and closing induction current installing additional for prior art earthed switch brings the technical problem of cost rising, provides a kind of earthed switch.
A kind of earthed switch, comprise the fixed contact and the moving contact that cooperatively interact, on described moving contact, be fixedly installed at least one elastic rod, on described fixed contact top, be fixedly installed auxiliary contact device, on described auxiliary contact device, be provided with stop and do not occur the retarding means of elastically-deformable described elastic rod.
Further, described auxiliary contact device comprises the first auxiliary contact, described retarding means comprises that first delays mechanism, described the first auxiliary contact comprises at least one fixed connecting rod, described fixed connecting rod comprises being fixedly connected with end and fixedly delaying to be held, the described end that is fixedly connected with is fixedly connected with described fixed contact top, describedly fixedly delays to hold and described first delays mechanism and be connected.
Further, described the first auxiliary contact also comprises tilting bar, described tilting bar comprises that inclination arrival end and inclination delay end, describedly fixedly delay to terminate at described inclination arrival end and described inclination delays on the shaft between end, and described tilting bar tilts to be connected with described fixed connecting rod, described first to delay mechanism be that described on described tilting bar fixedly delays to hold the shaft part of described inclination between delaying to hold.
Further:
Described the first auxiliary contact comprises two described fixed connecting rods and two described tilting bars, and the distance of two described inclination arrival ends is greater than two described inclinations and delays the distance of holding;
Described elastic rod is two, it is elastic rod top that described elastic rod and described first delays the end that mechanism contacts, two described elastic rod top distances are less than the distance of two described inclination arrival ends, and two described elastic rod top distances are greater than two described inclinations and delay the distance of holding.
Further, described auxiliary contact device comprises the second auxiliary contact, described retarding means comprises that second delays mechanism, described the second auxiliary contact comprises bending extension rod, two ends of described bending extension rod are fixedly connected with described fixed contact top respectively, shaft between two ends is bending and form and delay bending part, described in to delay bending part be described second to delay mechanism.
Further, the middle bent of described bending extension rod formation projection.
Further, described elastic rod is two, and described second to delay mechanism be two.
Further:
It is elastic rod top that described elastic rod and described second delays the end that mechanism contacts, and two described elastic rod tops distances are less than the distance of holding bending part described in two.
The elastic rod that the utility model cooperatively interacts by increase and delay mechanism, realizes air blowout, and what adopt is simple in structure, and without increasing arc control device, therefore cost is low, easy for installation and safeguard simple.
Brief description of the drawings
Fig. 1 is the structural representation of an embodiment of a kind of earthed switch of the utility model;
Fig. 2 is that a kind of earthed switch of the utility model adopts the vertical view of the first auxiliary contact as embodiment;
Fig. 3 is the enlarged diagram that is provided with the fixed contact top of the first auxiliary contact;
Fig. 4 is the enlarged diagram of the first auxiliary contact;
Fig. 5 is the enlarged diagram that is provided with the fixed contact top of the second auxiliary contact.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Be illustrated in figure 1 the structural representation of an embodiment of a kind of earthed switch of the utility model, comprise the fixed contact 1 and the moving contact 2 that cooperatively interact, on described moving contact 2, be fixedly installed at least one elastic rod 3, on described fixed contact 1 top 11, be fixedly installed auxiliary contact device, on described auxiliary contact device, be provided with stop and do not occur the retarding means of elastically-deformable described elastic rod.
Earthed switch produces the reason of electric arc, is fixed contact 1 while separating with moving contact 2, and the distance between fixed contact 1 and moving contact 2 approaches and forms high-voltage arc very much.Elastic rod 3 and retarding means that the utility model cooperatively interacts by increase, realize air blowout, because elastic rod 3 is fixed on moving contact 2, therefore in the time that moving contact 2 separates from fixed contact 1, the elastic rod 3 not occurring under elastic deformation state is delayed device stop, thereby the moving contact 2 that stop is connected with elastic rod 3, then moving contact 2 being applied to larger power makes elastic rod 3 occur to separate from described auxiliary contact device after deformation, the moment separating, because elastic rod 3 ejects from retarding means, therefore to moving contact 2 applied forces meeting abrupt releases, moving contact 2 is departed from from fixed contact rapidly, thereby realize air blowout.
Therein in an embodiment, described auxiliary contact device comprises the first auxiliary contact, described retarding means comprises that first delays mechanism, be illustrated in figure 2 a kind of earthed switch of the utility model and adopt the vertical view of the first auxiliary contact as embodiment, be illustrated in figure 3 the enlarged diagram on the fixed contact top that is provided with the first auxiliary contact, Fig. 4 is the enlarged diagram of the first auxiliary contact, described the first auxiliary contact 4 comprises at least one fixed connecting rod 42, described fixed connecting rod 42 comprises and is fixedly connected with end 421 and fixedly delay to hold 422, the described end 421 that is fixedly connected with is fixedly connected with described fixed contact 1 top 11, describedly fixedly delay to hold 422 and described first to delay mechanism 41 and be connected.
Elastic rod 3, under the drive of moving contact 2, inserts the first auxiliary contact 4, crosses first delay mechanism 41 by elastic deformation, delays the rear recovery of mechanism 41 crossing first.In the time that moving contact 2 separates from fixed contact, first delays mechanism's 41 stop elastic rods 3 and moving contact 2, and elastic rod 3 occurs to delay mechanism 41 from first after elastic deformation and separates, and moving contact 2 separates with fixed contact rapidly simultaneously, realizes arc extinguishing.
Therein in an embodiment, described first delays mechanism 41 for fixedly delaying to hold 422 projections that are connected with described.Elastically-deformable elastic rod 3 does not occur in projection prevention ejects, and finally forces elastic rod 3 that elastic deformation occurs, and ejects from projection, realizes arc extinguishing.
In another embodiment, be describedly back bent to form bend after fixedly delaying to hold 422 extensions, described first delays mechanism 41 for described bend.
Elastically-deformable elastic rod 3 does not occur in bend prevention ejects, and finally forces elastic rod 3 that elastic deformation occurs, and ejects from bend, realizes arc extinguishing.
Therein in an embodiment, described the first auxiliary contact 4 also comprises tilting bar 43, described tilting bar 43 comprises that inclination arrival end 431 and inclination delay to hold 432, describedly fixedly delay to hold 422 to be connected on described inclination arrival end 431 and described inclination delays to hold on the shaft between 432, and described tilting bar 43 tilts to be connected with described fixed connecting rod 42, described first to delay mechanism 41 be that described on described tilting bar 43 fixedly delays to hold 422 to delay to hold the shaft part between 432 to described inclination.
In the present embodiment, adopt tilting bar 43 to coordinate with fixed connecting rod 42 and realize and delay mechanism, fixedly delaying to hold 422 to delay to hold shaft part (first delays mechanism 41) between 432 to stop elastically-deformable elastic rod 3 does not occur to described inclination and eject, finally force elastic rod 3 that elastic deformation occurs, delay mechanism 41 from first and eject, realize arc extinguishing.
Therein in an embodiment:
Described the first auxiliary contact 4 comprises that the distance of two described fixed connecting rods 42 and 43, two described inclination arrival ends 431 of two described tilting bars is greater than two described inclinations and delays to hold 432 distance;
Described elastic rod 3 is two, it is elastic rod top 31 that described elastic rod 3 and described first delays the end that mechanism 41 contacts, two described elastic rod tops, 31 distances are less than the distance of two described inclination arrival ends 431, and two described elastic rod top 31 distances are greater than two described inclinations and delay to hold 432 distance.
The present embodiment the first auxiliary contact 4 coordinates with two elastic rods 3, guides two elastic rods 3 to insert the first backward both sides of auxiliary contact 4 and compresses, and is not easy to get loose.
Therein in an embodiment, described auxiliary contact comprises the second auxiliary contact, the described mechanism that delays comprises that second delays mechanism, be illustrated in figure 5 the enlarged diagram on the fixed contact top that is provided with the second auxiliary contact, described the second auxiliary contact 5 comprises bending extension rod 52, two ends 53 of described bending extension rod 52 are fixedly connected with described fixed contact 1 top 11 respectively, shaft between two ends 53 is bending and form and delay bending part, described in to delay bending part be described second to delay mechanism 51.
Two ends 53 of bending extension rod 52 are fixedly connected with described fixed contact 1 top 11 respectively, in the time that moving contact 2 inserts fixed contact 1, elastic rod 3 moves to end 53 along the shaft of bending extension rod 52, and is finally delayed mechanism 51 by second and block, and elastic rod 3 inserts the second auxiliary contact 5.In the time that moving contact 2 separates from fixed contact 1, elastically-deformable elastic rod 3 does not occur to be delayed mechanism 51 by second and blocks, now need to apply larger power, elastic rod 3 is occurred after elastic deformation, delaying mechanism 51 from second separates, elastic rod 3 is departed from from the second auxiliary contact 5, and moving contact 2 separates with fixed contact 1 fast simultaneously, thereby realizes arc extinguishing.
In an embodiment, the middle bent of described bending extension rod 52 also forms projection 54 therein.
When elastic rod 3 departs from from the second auxiliary contact 5, there is elastic deformation and delay mechanism 51 from second and separate in elastic rod 3 first, now, has certain possibility elastic rod 3 can enter in the space that bending extension rod 52 and fixed contact 1 top 11 form.The present embodiment increases projection 54, the space that helps elastic rod 3 to form from bending extension rod 52 and fixed contact 1 top 11, depart from, block and cause occurring elastic deformation for the second time and can not be bent extension rod 52, elastic rod 3 can be separated with the second auxiliary contact 5 swimmingly, thereby realize air blowout better.
In an embodiment, described elastic rod 3 is two therein, and described second to delay mechanism 51 be two.
Therein in an embodiment:
It is that described elastic rod top, 31, two, elastic rod top 31 distances are less than the distance of holding bending part described in two that described elastic rod 3 and described second delays the end that mechanism 51 contacts.
The present embodiment the second auxiliary contact 5 coordinates with two elastic rods 3, and the second auxiliary contact 5 is rear to be held bending part 51 to two and compress inserting to make two elastic rods 3.
It is simple in structure that earthed switch of the present utility model adopts, and can be applied in well high pressure field, realizes air blowout, and being particularly useful for voltage is the high pressure field of 110KV～550KV.
The above embodiment has only expressed several execution mode of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion and improvement, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.
Claims (8)
1. an earthed switch, comprise the fixed contact (1) and the moving contact (2) that cooperatively interact, it is characterized in that, on described moving contact (2), be fixedly installed at least one elastic rod (3), on described fixed contact (1) top (11), be fixedly installed auxiliary contact device, on described auxiliary contact device, be provided with stop and do not occur the retarding means of elastically-deformable described elastic rod (3).
2. earthed switch according to claim 1, it is characterized in that, described auxiliary contact device comprises the first auxiliary contact (4), described retarding means comprises that first delays mechanism (41), described the first auxiliary contact (4) comprises at least one fixed connecting rod (42), described fixed connecting rod (42) comprise be fixedly connected with end (421) and fixedly delay end (422), the described end (421) that is fixedly connected with is fixedly connected with described fixed contact (1) top (11), and the described end (422) and described first that fixedly delays delays mechanism (41) and is connected.
3. earthed switch according to claim 2, it is characterized in that, described the first auxiliary contact (4) also comprises tilting bar (43), described tilting bar (43) comprises that inclination arrival end (431) and inclination delay end (432), the described end (422) that fixedly delays is connected on described inclination arrival end (431) and described inclination and delays to hold on the shaft between (432), and described tilting bar (43) tilts to be connected with described fixed connecting rod (42), described first delays mechanism (41) delays to hold the shaft part between (432) to described inclination for the described end (422) that fixedly delays on described tilting bar (43).
4. earthed switch according to claim 3, is characterized in that:
Described the first auxiliary contact (4) comprises two described fixed connecting rods (42) and two described tilting bars (43), the distance of two described inclination arrival ends (431) be greater than two described inclinations delay end (432) distance;
Described elastic rod (3) is two, it is elastic rod top (31) that described elastic rod (3) and described first delays the end that mechanism (41) contacts, two described elastic rod tops (31) distances is less than the distance of two described inclination arrival ends (431), and two described elastic rod tops (31) distance is greater than two described inclinations and delays the distance of end (432).
5. earthed switch according to claim 1, it is characterized in that, described auxiliary contact device comprises the second auxiliary contact (5), described retarding means comprises that second delays mechanism (51), described the second auxiliary contact (5) comprises bending extension rod (52), two ends (53) of described bending extension rod (52) are fixedly connected with described fixed contact (1) top (11) respectively, shaft between two ends (53) is bending and form and delay bending part, described in to delay bending part be described second to delay mechanism (51).
6. earthed switch according to claim 5, is characterized in that, the middle bent of described bending extension rod (52) also forms projection (54).
7. earthed switch according to claim 5, is characterized in that, described elastic rod (3) is two, and described second to delay mechanism (51) be two.
8. earthed switch according to claim 7, is characterized in that:
It is elastic rod top (31) that described elastic rod (3) and described second delays the end that mechanism (51) contacts, and two described elastic rod tops (31) distance is less than two described second distances that delay mechanism (51).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148046.3U CN203812787U (en) | 2014-03-28 | 2014-03-28 | Grounding switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420148046.3U CN203812787U (en) | 2014-03-28 | 2014-03-28 | Grounding switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203812787U true CN203812787U (en) | 2014-09-03 |
Family
ID=51451506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420148046.3U Expired - Lifetime CN203812787U (en) | 2014-03-28 | 2014-03-28 | Grounding switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203812787U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113196435A (en) * | 2018-12-21 | 2021-07-30 | 西门子能源全球有限公司 | Earthing switch for medium and/or high voltage switchgear and corresponding switchgear |
-
2014
- 2014-03-28 CN CN201420148046.3U patent/CN203812787U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113196435A (en) * | 2018-12-21 | 2021-07-30 | 西门子能源全球有限公司 | Earthing switch for medium and/or high voltage switchgear and corresponding switchgear |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180529 Address after: Baden, Switzerland Patentee after: ABB Switzerland Co.,Ltd. Address before: Zurich Patentee before: ABB TECHNOLOGY Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210513 Address after: Baden, Switzerland Patentee after: ABB grid Switzerland AG Address before: Baden, Switzerland Patentee before: ABB Switzerland Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: Swiss Baden Patentee after: Hitachi energy Switzerland AG Address before: Swiss Baden Patentee before: ABB grid Switzerland AG |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140903 |