CN103187199B - Gas insulated load switch - Google Patents
Gas insulated load switch Download PDFInfo
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- CN103187199B CN103187199B CN201110458544.9A CN201110458544A CN103187199B CN 103187199 B CN103187199 B CN 103187199B CN 201110458544 A CN201110458544 A CN 201110458544A CN 103187199 B CN103187199 B CN 103187199B
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- movable touch
- touch knife
- shell
- load switch
- blade
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Abstract
The invention discloses gas insulated load switch, it comprises insulation crust, fills insulating gas in it, and it is built with upper and lower fixed contact, grounding contact, movable touch knife and driving mechanism.Described movable touch knife energy opposite shell is rotated, and driving mechanism connects movable touch knife movable touch knife can be driven at closing position, rotate between open position and earthing position, and described open position is positioned between closing position and earthing position.Described upper static contact is provided with permanent magnet.Described movable touch knife is installed with blade, and hermetic unit between the corresponding closing position of described shell and open position and runner sealing coordinate shell inner cavity to be divided into two air chambers, described blade establishes the blowing mouth connecting 2 air chambers, and described blowing mouth aims at upper static contact.Its tool has the following advantages: the present invention will calm the anger mode and magnetic means dexterously connected applications in on-load switch, drastically increase the arc extinguishing ability of switch, structure be simple, compact, cost is low, arc extinction performance is good, reliability is high.
Description
Technical field
The present invention relates to a kind of gas insulated load switch.
Background technology
Existing six-component force balance on-load switch generally comprises insulation crust and is enclosed in fixed contact, movable touch knife, grounding contact and driving mechanism in insulation crust, drives movable touch knife movable with at closing position, movable between open position and earthing position by driving mechanism.Cut-offfing for extinguishing and closing the electric arc produced in load current process, existingly mainly to be divided into: aerogenesis mode, mode of calming the anger, magnetic mode, cold arc gate mode etc. carry out arc extinguishing, be used alone certain mode arc extinguishing, arc extinguishing is limited in one's ability, often causes arc extinguishing failure.
Summary of the invention
The invention provides gas insulated load switch, which overcome the deficiency that arc extinction performance in background technology existing for gas insulated load switch is not good.
The technical scheme adopted that the present invention solves its technical problem is:
Gas insulated load switch, it comprises insulation crust (10), described shell fills insulating gas in (10), described insulation crust (10) is built with upper static contact (20), lower fixed contact (30), grounding contact (40), movable touch knife (50) and driving mechanism (60), described movable touch knife (50) can opposite shell (10) rotate, and described driving mechanism (60) connection movable touch knife (50) contacts the closing position of upper static contact (20) and lower fixed contact (30) can drive movable touch knife (50) one, rotate between one open position contacts down fixed contact (30) and grounding contact (40) earthing position with one, described open position is positioned between closing position and earthing position,
(20) are provided with permanent magnet to described upper static contact; Described movable touch knife (50) is installed with blade (70), and hermetic unit (11) between the corresponding closing position of described shell (10) and open position and blade (70) are sealed and matched that shell (10) inner chamber is divided into two air chambers, described blade (70) establishes the blowing mouth (71) connecting 2 air chambers, and described blowing mouth (71) aims at upper static contact (20).
Among one preferred embodiment: between the gap portion (12) between the corresponding open position of described shell (10) and earthing position and blade (70), there is gap.
Among one preferred embodiment: described blade (70) is set as wavy shaped configuration along movable touch knife (50) pivot center.
Among one preferred embodiment: fixed contact (30) under described movable touch knife (50) lower end pivot joint and the lower fixed contact (30) of contact.
Among one preferred embodiment: described driving mechanism (60) comprises swing arm (62) and the linking arm (63) that line shaft (61), that a sealing pivot wears shell (10) is fixed in line shaft (61), described linking arm (63) one end pivot joint swing arm (62) end, other end pivot joint movable touch knife (50) or blade (70).
Among one preferred embodiment: described movable touch knife (50) is affixed protrudes out seat (51), what described linking arm (63) other end was articulated in movable touch knife (50) protrudes out seat (51).
Among one preferred embodiment: described blade (70) lower limb sets firmly an arc-like sheet (72), the sealing of described arc-like sheet (72) outer wall is abutted against shell (10) inner wall lower and is divided; The hermetic unit (11) of described 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 (50).
Among one preferred embodiment: described shell (10) inner wall lower divides projection one boss (13), described arc-like sheet (72) outer wall rotates and abuts against boss (13), and described arc-like sheet (72) establishes impenetrating mouth; Described lower fixed contact (30) is installed on boss (13), and fits through impenetrating mouth.
The technical program is compared with background technology, and its tool has the following advantages:
1, the present invention will calm the anger mode and magnetic means dexterously connected applications in on-load switch, drastically increase the arc extinguishing ability of switch, overcome traditional on-load switch arc extinguishing limited in one's ability, often cause the deficiency of arc extinguishing failure, and there is the advantage that structure is simple, compact, cost is low, arc extinction performance is good, reliability is high.
2, blade is set as wavy shaped configuration, and the motion of the blowing mouth to design making air-flow more concentrated, strengthens the structural strength of blade of calming the anger simultaneously.
Have gap between the gap portion 3, between the corresponding open position of shell and earthing position and blade, when movable touch knife is movable between open position and earthing position, shell inner cavity gas balance, reduces the resistance in operational grounding process.
4, blade lower limb sets firmly arc-like sheet, 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, the axis of arc and arc-like sheet dead in line and be the pivot center of movable touch knife, being tightly connected between blade and shell can be ensured, ensure 2 air chambers independence, ensure to calm the anger effect.
5, fixed contact and the lower fixed contact of contact under the pivot joint of movable touch knife lower end, for single break design, coordinate mode of calming the anger and magnetic means to combine, greatly reduce switch internal volume, the consumption of minimizing dielectric.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the invention will be further described.
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 open position.
Fig. 3 is the profile that the insulation load switch of a preferred embodiment is in earthing position.
Fig. 4 is the profile that the insulation load switch of a preferred embodiment is in open position and rotates to earthing position.
Fig. 5 is the insulation load switch perspective interior view of a preferred embodiment.
Fig. 6 is that the insulation load of a preferred embodiment is calmed the anger blade profile stereogram.
Embodiment
Please refer to Fig. 1 to Fig. 6, gas insulated load switch, it comprises insulation crust 10, and fill insulating gas in described shell 10, described insulating gas such as adopts sulphur hexafluoride.Described insulation crust 10 is built with upper static contact 20, lower fixed contact 30, grounding contact 40, movable touch knife 50, driving mechanism 60 and blade 70.
Among the present embodiment, described insulation crust 10 comprises upper-lower casing, and described upper-lower casing is fixed together and is formed with closed cavity in it.Described shell 10 inner wall lower divides projection one boss 13, and among the present embodiment, the projection of described boss 13 is in the middle part of lower house inwall.
Set firmly upper static contact 20 in described insulation crust 10, among the present embodiment, described upper static contact 20 is installed in upper enclosure inner wall.And, described upper static contact 20 is provided with permanent magnet, utilizes permanent magnet arc extinguishing.
Described lower fixed contact 30 is installed in housing 10, and among the present embodiment, described lower fixed contact 30 is installed on boss 13.
Described movable touch knife 50 can opposite shell 10 rotate, and described driving mechanism 60 connects movable touch knife 50 movable touch knife 50 can be driven at a closing position, rotate between an open position and an earthing position, described open position is positioned between closing position and earthing position, described closing position refers to that upper static contact 20 and lower fixed contact 30 contact, and described earthing position refers to that lower fixed contact 30 and grounding contact 40 contact.Among the present embodiment, fixed contact 30 under described movable touch knife 50 lower end pivot joint and the lower fixed contact 30 of contact.
Described movable touch knife 50 is installed with blade 70, and hermetic unit 11 between the corresponding closing position of described shell 10 and open position and blade 70 are sealed and matched that shell 10 inner chamber is divided into two air chambers A, B, described blade 70 establishes the blowing mouth 71 connecting 2 air chambers, described blowing mouth 71 aims at upper static contact 20, to make: turn to the process of open position at movable touch knife 50 from closing position, the gas of blade 70 rotary compression air chamber B, air chamber B pressure increases, 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 at movable touch knife 50 from open position, the gas of blade 70 rotary compression air chamber A, air chamber A pressure increases, and air chamber A gas blows to air chamber B fast from blowing mouth 71, blows in journey soon, also through upper static contact 20, to realize arc extinguishing.Have gap between the gap portion 12 between the corresponding open position of described shell 10 and earthing position and blade 70, to make gas balance in shell 10, rotating operation merit is low, and energy consumption is low.Among the present embodiment, described blade is made up of insulating material.
Among the present embodiment, described blade 70 lower limb sets firmly an arc-like sheet 72, and described arc-like sheet 72 outer wall sealing is abutted against shell 10 inner wall lower and is divided.The hermetic unit 11 of described 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 50, during to make to turn to open position from closing position, shell inner cavity can be divided into air chamber A, B.Left and right two side seal of described blade about 70 two side and shell is slided and is abutted against.Best, described arc-like sheet 72 outer wall rotates and abuts against boss 13, and described arc-like sheet 72 establishes impenetrating mouth; Described lower fixed contact 30 is installed on boss 13, and fits through impenetrating mouth, and blade also can be sealed when lower fixed contact 20 rotates.
Among the present embodiment, described driving mechanism 60 comprises swing arm 62 and the linking arm 63 that line shaft 61, that a sealing pivot wears shell 10 is fixed in line shaft 61.Described movable touch knife 50 is affixed protrudes out seat 51.Described linking arm 63 one end pivot joint swing arm 62 end, other end pivot joint movable touch knife 50 protrude out seat 51.
Among the present embodiment, please refer to Fig. 6, described blade 70 is set as wavy shaped configuration along movable touch knife 50 pivot center, and described blowing mouth is arranged on corrugated crest.
Among the present embodiment, described blade such as also comprises multiple burst, and described multiple burst is fixedly connected in blade by movable touch knife.
The above, be only present pre-ferred embodiments, therefore can not limit scope of the invention process according to this, the equivalence change namely done according to the scope of the claims of the present invention and description with modify, all should still belong in scope that the present invention contains.
Claims (8)
1. gas insulated load switch, it comprises insulation crust (10), described shell fills insulating gas in (10), described insulation crust (10) is built with upper static contact (20), lower fixed contact (30), grounding contact (40), movable touch knife (50) and driving mechanism (60), described movable touch knife (50) can opposite shell (10) rotate, and described driving mechanism (60) connection movable touch knife (50) contacts the closing position of upper static contact (20) and lower fixed contact (30) can drive movable touch knife (50) one, rotate between one open position contacts down fixed contact (30) and grounding contact (40) earthing position with one, described open position is positioned between closing position and earthing position, it is characterized in that: (20) are provided with permanent magnet to described upper static contact, described movable touch knife (50) is installed with blade (70), and hermetic unit (11) between the corresponding closing position of described shell (10) and open position and blade (70) are sealed and matched that shell (10) inner chamber is divided into two air chambers, described blade (70) establishes the blowing mouth (71) connecting 2 air chambers, and described blowing mouth (71) aims at upper static contact (20).
2. gas insulated load switch according to claim 1, is characterized in that: have gap between the gap portion (12) between the corresponding open position of described shell (10) and earthing position and blade (70).
3. gas insulated load switch according to claim 1, is characterized in that: described blade (70) is set as wavy shaped configuration along movable touch knife (50) pivot center.
4. the gas insulated load switch according to claim 1 or 2 or 3, is characterized in that: fixed contact (30) under described movable touch knife (50) lower end pivot joint and the lower fixed contact (30) of contact.
5. the gas insulated load switch according to claim 1 or 2 or 3, it is characterized in that: described driving mechanism (60) comprises swing arm (62) and the linking arm (63) that line shaft (61), that a sealing pivot wears shell (10) is fixed in line shaft (61), described linking arm (63) one end pivot joint swing arm (62) end, other end pivot joint movable touch knife (50) or blade (70).
6. gas insulated load switch according to claim 5, it is characterized in that: described movable touch knife (50) is affixed protrudes out seat (51), what described linking arm (63) other end was articulated in movable touch knife (50) protrudes out seat (51).
7. the gas insulated load switch according to claim 1 or 2 or 3, it is characterized in that: described blade (70) lower limb sets firmly an arc-like sheet (72), the sealing of described arc-like sheet (72) outer wall is abutted against shell (10) inner wall lower and is divided; The hermetic unit (11) of described 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 (50).
8. gas insulated load switch according to claim 7, it is characterized in that: described shell (10) inner wall lower divides projection one boss (13), described arc-like sheet (72) outer wall rotates and abuts against boss (13), and described arc-like sheet (72) establishes impenetrating mouth; Described lower fixed contact (30) is installed on boss (13), and fits through impenetrating mouth.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458544.9A CN103187199B (en) | 2011-12-30 | 2011-12-30 | Gas insulated load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110458544.9A CN103187199B (en) | 2011-12-30 | 2011-12-30 | Gas insulated load switch |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103187199A CN103187199A (en) | 2013-07-03 |
| CN103187199B true CN103187199B (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110458544.9A Active CN103187199B (en) | 2011-12-30 | 2011-12-30 | Gas insulated load switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103187199B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4803319A (en) * | 1987-06-25 | 1989-02-07 | Merlin Gerin | Rotary switch with curved arc root migration track |
| CN2423649Y (en) * | 2000-04-25 | 2001-03-14 | 李彤 | Insulation cover for indoor high-voltage sulfur hexafluoride load switch |
| CN101582345A (en) * | 2008-05-16 | 2009-11-18 | 阿海珐T&D有限公司 | Middle- and high-voltage electrical switch disconnector |
| CN202394794U (en) * | 2011-12-30 | 2012-08-22 | 厦门华电开关有限公司 | Gas-insulated load switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2179773B1 (en) * | 2001-03-30 | 2004-03-16 | Grupo Ormazabal Sa | BLOWING SYSTEM FOR LOAD CUTTING SWITCHES |
-
2011
- 2011-12-30 CN CN201110458544.9A patent/CN103187199B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4803319A (en) * | 1987-06-25 | 1989-02-07 | Merlin Gerin | Rotary switch with curved arc root migration track |
| CN2423649Y (en) * | 2000-04-25 | 2001-03-14 | 李彤 | Insulation cover for indoor high-voltage sulfur hexafluoride load switch |
| CN101582345A (en) * | 2008-05-16 | 2009-11-18 | 阿海珐T&D有限公司 | Middle- and high-voltage electrical switch disconnector |
| CN202394794U (en) * | 2011-12-30 | 2012-08-22 | 厦门华电开关有限公司 | Gas-insulated load switch |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103187199A (en) | 2013-07-03 |
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