CN202394794U - Gas-insulated load switch - Google Patents
Gas-insulated load switch Download PDFInfo
- Publication number
- CN202394794U CN202394794U CN 201120571924 CN201120571924U CN202394794U CN 202394794 U CN202394794 U CN 202394794U CN 201120571924 CN201120571924 CN 201120571924 CN 201120571924 U CN201120571924 U CN 201120571924U CN 202394794 U CN202394794 U CN 202394794U
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- shell
- gas
- contact
- blade
- movable touch
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Abstract
The utility model discloses a gas-insulated load switch, which comprises an insulation shell, wherein insulation gas is filled into the insulation shell, and an upper static contact, a lower static contact, a grounding contact, a movable contact cutter and a driving mechanism are arranged in the insulation shell, wherein the movable contact cutter can rotate relative to the shell; the driving mechanism is connected with the movable contact cutter to drive the movable contact cutter to rotate among a switch-on position, a tripping position and a grounding position, and the tripping position is positioned between the switch-on position and the grounding position; a permanent magnet is arranged on the upper static contact; a blade is fixedly arranged on the movable contact cutter, and a sealing part of the shell, which is positioned between the switch-on position and the tripping position, is in matched with the blade hermetically, so that an inner cavity of the shell is divided into two air chambers; the blade is provided with air blowing openings which are communicated with the two air chambers; and the air blowing openings align with the upper static contact. The gas-insulated load switch has the advantages that an air compression mode and a magnetic mode are combined skillfully to be applied to the load switch, so that the arc extinguishing capacity of the switch is improved greatly; and the gas-insulated load switch is simple and compact in structure, low in cost, and high in arc extinguishing performance and reliability.
Description
Technical field
The utility model relates to a kind of gas-insulated on-load switch.
Background technology
Existing sulphur hexafluoride insulation load switch generally comprises insulation crust and the fixed contact, movable touch knife, grounding contact and the driving mechanism that are enclosed in the insulation crust, drives the movable touch knife activity with movable between closing position, separating brake position and earthing position through driving mechanism.Close the electric arc that produces in the load current process for extinguishing cut-offfing and close; Have now and mainly be divided into: aerogenesis mode, the mode of calming the anger, magnetic mode, cold arc gate mode etc. are carried out arc extinguishing; Make arc extinguishing by some way separately, arc extinguishing is limited in one's ability, often causes the arc extinguishing failure.
The utility model content
The utility model provides a kind of gas-insulated on-load switch, and it has overcome the not good deficiency of the existing arc extinction performance of a kind of gas-insulated on-load switch in the background technology.
The technical scheme that is adopted that the utility model solves its technical problem is:
A kind of gas-insulated on-load switch; It comprises insulation crust (10); Said shell fills insulating gas in (10); Upper static contact (20), following fixed contact (30), grounding contact (40), movable touch knife (50) and driving mechanism (60) are housed in the said insulation crust (10); Said movable touch knife (50) can opposite shell (10) rotate, and said driving mechanism (60) connects movable touch knife (50) and drives between the earthing position of movable touch knife (50) fixed contact (30) and grounding contact (40) under closing position, a separating brake position of a contact upper static contact (20) and following fixed contact (30) contact with one and rotate, said sub-gate position set is between closing position and earthing position;
Said upper static contact is equipped with permanent magnet on (20); Be installed with blade (70) on the said movable touch knife (50); And the corresponding closing position of said shell (10) and the hermetic unit (11) between the separating brake position and blade (70) is sealed and matched and shell (10) inner chamber is divided into two air chambers; Said blade (70) is established the blowing mouth (71) of connecting 2 air chambers, and said blowing mouth (71) is aimed at upper static contact (20).
Among one preferred embodiment: have the gap between the corresponding separating brake position of said shell (10) and gap portion (12) between earthing position and blade (70).
Among one preferred embodiment: said blade (70) is set as wavy shaped configuration along movable touch knife (50) pivot center.
Among one preferred embodiment: fixed contact (30) under fixed contact (30) and the contact under said movable touch knife (50) lower end articulates.
Among one preferred embodiment: said driving mechanism (60) comprises that line shaft (61), that a sealing pivot is worn shell (10) is fixed in the swing arm (62) and a linking arm (63) of line shaft (61); Said linking arm (30) one ends articulate swing arm (62) end, and the other end articulates movable touch knife (50) or blade (70).
Among one preferred embodiment: the affixed seat (51) that protrudes out of said moving contact cutter (50), said linking arm (30) other end is articulated in protrude out (51) of movable touch knife (50).
Among one preferred embodiment: said blade (70) lower limb sets firmly an arc-like sheet (72), and shell (10) inwall lower part is abutted against in the sealing of said arc-like sheet (72) outer wall; The hermetic unit (11) of said shell (10) is set as arc, the axis of this arc and arc-like sheet (72) dead in line and be the pivot center of movable touch knife (30).
Among one preferred embodiment: said shell (10) inwall lower part is convexly equipped with a boss (13), and said arc-like sheet (72) outer wall rotates and abuts against boss (13), and said arc-like sheet (72) is established impenetrating mouth; Said fixed contact (30) down is installed on the boss (13), and the adaptive impenetrating mouth that passes.
The present technique scheme is compared with background technology, and it has following advantage:
1, will calm the anger mode and magnetic means of the utility model combines to be applied in the on-load switch dexterously; Greatly improved the arc extinguishing ability of switch; It is limited in one's ability to have overcome traditional on-load switch arc extinguishing; Often cause the deficiency of arc extinguishing failure, and have advantage simple in structure, compact, that cost is low, arc extinction performance good, reliability is high.
2, blade is set as wavy shaped configuration, makes the more concentrated blowing mouth motion to design of air-flow, the structural strength of the blade of having strengthened simultaneously calming the anger.
3, have the gap between the corresponding separating brake position of shell and gap portion between earthing position and blade, when movable touch knife was movable between separating brake position and earthing position, the shell inner cavity gas balance reduced the resistance in the operational grounding process.
4, the blade lower limb sets firmly arc-like sheet; The outer casing inner wall lower part is abutted against in the sealing of arc-like sheet outer wall; The hermetic unit of shell is set as arc, and the axis of arc and arc-like sheet dead in line and be the pivot center of movable touch knife can guarantee being tightly connected between blade and the shell; Guarantee 2 air chambers independence, guarantee to calm the anger effect.
5, fixed contact under fixed contact and the contact under the movable touch knife lower end articulates for single break designs, cooperates the mode of calming the anger and magnetic means to combine, and reduces the switch internal volume greatly, the consumption of minimizing dielectric.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the utility model is described further.
Fig. 1 is the profile that the insulation load switch of a preferred embodiment is in closing position.
Fig. 2 is the profile that the insulation load switch of a preferred embodiment is in the separating brake position.
Fig. 3 is the profile that the insulation load switch of a preferred embodiment is in earthing position.
Fig. 4 is that the insulation load switch of a preferred embodiment is in the profile that rotate to earthing position the separating brake position.
Fig. 5 is the insulation load switch perspective interior view of a preferred embodiment.
Fig. 6 is the insulation load of the preferred embodiment blade profile stereogram of calming the anger.
Embodiment
Please refer to Fig. 1 to Fig. 6, a kind of gas-insulated on-load switch, it comprises insulation crust 10, fills insulating gas in the said shell 10, said insulating gas for example adopts sulphur hexafluoride.Upper static contact 20, following fixed contact 30, grounding contact 40, movable touch knife 50, driving mechanism 60 and blade 70 are housed in the said insulation crust 10.
Among the present embodiment, said insulation crust 10 comprises lower house, said go up that lower house is fixed together and its in be formed with closed cavity.Said shell 10 inwall lower parts are convexly equipped with a boss 13, and among the present embodiment, said boss 13 is convexly equipped with at lower house inwall middle part.
Set firmly upper static contact 20 in the said insulation crust 10, among the present embodiment, said upper static contact 20 is installed in upper enclosure inner wall.And, on the said upper static contact 20 permanent magnet is installed, utilize the permanent magnet arc extinguishing.
Said fixed contact 30 down is installed in the housing 10, and among the present embodiment, said fixed contact 30 down is to be installed on the boss 13.
Said movable touch knife 50 can opposite shell 10 rotate; And said driving mechanism 60 connects movable touch knife 50 and rotates between a closing position, a separating brake position and an earthing position can drive movable touch knife 50; Said sub-gate position set is between closing position and earthing position; Said closing position is meant that upper static contact 20 and following fixed contact 30 contact, and said earthing position is meant down that fixed contact 30 and grounding contact 40 contact.Among the present embodiment, fixed contact 30 under fixed contact 30 and the contact under said movable touch knife 50 lower ends articulate.
Be installed with blade 70 on the said movable touch knife 50; And the corresponding closing position of said shell 10 and the hermetic unit between the separating brake position 11 are sealed and matched so that shell 10 inner chambers are divided into two air chamber A, B with blade 70; Said blade 70 is established the blowing mouth 71 of connecting 2 air chambers, and said blowing mouth 71 is aimed at upper static contact 20, so that: turn to the process of separating brake position from closing position at movable touch knife 50; The gas of the blade 70 rotation B of compression air chamber; Air chamber B pressure increases, and air chamber B gas blows to upper static contact 20 fast from blowing mouth 71, to realize arc extinguishing; Turn to the process of closing position from the separating brake position at movable touch knife 50, the gas of the blade 70 rotation A of compression air chamber, air chamber A pressure increases, and air chamber A gas blows to air chamber B fast from blowing mouth 71, blows over soon in the journey, also through upper static contact 20, to realize arc extinguishing.The corresponding separating brake position of said shell 10 and the gap portion 12 between earthing position and 70 in blade have the gap, so that gas balance in the shell 10, the rotating operation merit is low, and energy consumption is low.Among the present embodiment, said blade is processed by insulating material.
Among the present embodiment, said blade 70 lower limbs set firmly an arc-like sheet 72, and shell 10 inwall lower parts are abutted against in said arc-like sheet 72 outer walls sealing.The hermetic unit 11 of said shell 10 is set as arc, and the axis of this arc and arc-like sheet 72 deads in line and be the pivot center of movable touch knife 30 so that when closing position turns to the separating brake position, can be divided into air chamber A, B with shell inner cavity.Two side seals are slided and are abutted against about said blade about 70 two sides and shell.Best, said arc-like sheet 72 outer walls rotate and abut against boss 13, and said arc-like sheet 72 is established impenetrating mouth; Said fixed contact 30 down is installed on the boss 13, and the adaptive impenetrating mouth that passes, and makes blade when fixed contact 20 rotates down, also can seal.
Among the present embodiment, said driving mechanism 60 comprises that line shaft 61, that a sealing pivot is worn shell 10 is fixed in the swing arm 62 and a linking arm 63 of line shaft 61.The said moving contact cutter 50 affixed seats 51 that protrude out.Said linking arm 30 1 ends articulate swing arm 62 ends, and what the other end articulated movable touch knife 50 protrudes out seat 51.
Among the present embodiment, please refer to Fig. 6, said blade 70 is set as wavy shaped configuration along movable touch knife 50 pivot centers, and said blowing mouth is arranged on the corrugated crest.
Among the present embodiment, said blade for example also comprises a plurality of bursts, and said a plurality of bursts are fixedly connected through movable touch knife and are blade.
The above; Be merely the utility model preferred embodiment; So can not limit the scope that the utility model is implemented according to this, the equivalence of promptly doing according to the utility model claim and description changes and modifies, and all should still belong in the scope that the utility model contains.
Claims (8)
1. gas-insulated on-load switch; It comprises insulation crust (10); Said shell fills insulating gas in (10); Upper static contact (20), following fixed contact (30), grounding contact (40), movable touch knife (50) and driving mechanism (60) are housed in the said insulation crust (10); Said movable touch knife (50) can opposite shell (10) rotate, and said driving mechanism (60) connects movable touch knife (50) and drives between the earthing position of movable touch knife (50) fixed contact (30) and grounding contact (40) under closing position, a separating brake position of a contact upper static contact (20) and following fixed contact (30) contact with one and rotate, said sub-gate position set is between closing position and earthing position; It is characterized in that: said upper static contact is equipped with permanent magnet on (20); Be installed with blade (70) on the said movable touch knife (50); And the corresponding closing position of said shell (10) and the hermetic unit (11) between the separating brake position and blade (70) is sealed and matched and shell (10) inner chamber is divided into two air chambers; Said blade (70) is established the blowing mouth (71) of connecting 2 air chambers, and said blowing mouth (71) is aimed at upper static contact (20).
2. a kind of gas-insulated on-load switch according to claim 1 is characterized in that: have the gap between the corresponding separating brake position of said shell (10) and gap portion (12) between earthing position and blade (70).
3. a kind of gas-insulated on-load switch according to claim 1 is characterized in that: said blade (70) is set as wavy shaped configuration along movable touch knife (50) pivot center.
4. according to claim 1 or 2 or 3 described a kind of gas-insulated on-load switches, it is characterized in that: fixed contact (30) under fixed contact (30) and the contact under said movable touch knife (50) lower end articulates.
5. according to claim 1 or 2 or 3 described a kind of gas-insulated on-load switches; It is characterized in that: said driving mechanism (60) comprises that line shaft (61), that a sealing pivot is worn shell (10) is fixed in the swing arm (62) and a linking arm (63) of line shaft (61); Said linking arm (30) one ends articulate swing arm (62) end, and the other end articulates movable touch knife (50) or blade (70).
6. a kind of gas-insulated on-load switch according to claim 5 is characterized in that: the affixed seat (51) that protrudes out of said moving contact cutter (50), said linking arm (30) other end is articulated in protrude out (51) of movable touch knife (50).
7. according to claim 1 or 2 or 3 described a kind of gas-insulated on-load switches, it is characterized in that: said blade (70) lower limb sets firmly an arc-like sheet (72), and shell (10) inwall lower part is abutted against in the sealing of said arc-like sheet (72) outer wall; The hermetic unit (11) of said shell (10) is set as arc, the axis of this arc and arc-like sheet (72) dead in line and be the pivot center of movable touch knife (30).
8. a kind of gas-insulated on-load switch according to claim 7 is characterized in that: said shell (10) inwall lower part is convexly equipped with a boss (13), and said arc-like sheet (72) outer wall rotates and abuts against boss (13), and said arc-like sheet (72) is established impenetrating mouth; Said fixed contact (30) down is installed on the boss (13), and the adaptive impenetrating mouth that passes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120571924 CN202394794U (en) | 2011-12-30 | 2011-12-30 | Gas-insulated load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120571924 CN202394794U (en) | 2011-12-30 | 2011-12-30 | Gas-insulated load switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202394794U true CN202394794U (en) | 2012-08-22 |
Family
ID=46669701
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120571924 Withdrawn - After Issue CN202394794U (en) | 2011-12-30 | 2011-12-30 | Gas-insulated load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202394794U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187199A (en) * | 2011-12-30 | 2013-07-03 | 厦门华电开关有限公司 | Gas-insulated load switch |
| CN103280368A (en) * | 2013-06-13 | 2013-09-04 | 北京合纵科沃尔电力科技有限公司 | Magnetic quenching SF6 three-position load switch |
-
2011
- 2011-12-30 CN CN 201120571924 patent/CN202394794U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103187199A (en) * | 2011-12-30 | 2013-07-03 | 厦门华电开关有限公司 | Gas-insulated load switch |
| CN103187199B (en) * | 2011-12-30 | 2015-11-25 | 厦门华电开关有限公司 | Gas insulated load switch |
| CN103280368A (en) * | 2013-06-13 | 2013-09-04 | 北京合纵科沃尔电力科技有限公司 | Magnetic quenching SF6 three-position load switch |
| CN103280368B (en) * | 2013-06-13 | 2015-10-28 | 北京合纵科沃尔电力科技有限公司 | The SF6 three-stations load switch of magnetic quenching |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20120822 Effective date of abandoning: 20151125 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |