CN201904273U - High-breaking vacuum load switch - Google Patents
High-breaking vacuum load switch Download PDFInfo
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- CN201904273U CN201904273U CN2010205485400U CN201020548540U CN201904273U CN 201904273 U CN201904273 U CN 201904273U CN 2010205485400 U CN2010205485400 U CN 2010205485400U CN 201020548540 U CN201020548540 U CN 201020548540U CN 201904273 U CN201904273 U CN 201904273U
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Abstract
The utility model relates to a high-breaking vacuum load switch, which comprises a frame 1, isolating switches 2, an upper grounding switch 3, a lower grounding switch 4, a high-breaking vacuum load switch 5 and a solid seal level column 6, wherein the isolated switches 2 are separated from each other and are installed on the frame 1. Compared with the prior art, the high-breaking vacuum load switch has the advantages that the upper grounding switch 3 and the lower grounding switch 4 are arranged, and the two grounding switches are synchronously acted and continuously acted with the isolating switches so that the hidden danger of error operations of the isolating switches 2 and the grounding switches is avoided; and the solid seal level column 6 avoids exposing an arc extinguish chamber outside to cause the dangle of being impacted outside ,and the defects of being easily subjected to the dirtiness and condensation influence on the ground insulation. The high-breaking vacuum load switch 5 has a simple structure and little power loss consumption, and is operated with the isolating switch in different steps to avoid the condition that the high-breaking vacuum load switch 5 is switched on prior to the isolating switch 2 to cause the isolating switch 2 is operated with load to cause accidents. The high-breaking vacuum load switch is easy to manufacture and simple to operate, and is safer and more reliable.
Description
Technical field
The utility model relates to a kind of high breaking vacuum load switch.
Background technology
On-load switch is with the dielectric branch: air-generating on-load switch, pressure-operated load switch, vacuum load switch, SF6 on-load switch.China starting stage of development based on air-generating and pressure-operated load switch, and the air-generating on-load switch is because the arc extinguishing ability, the few employing to the utmost.The pressure-operated load switch pneumatically carries out arc extinguishing, has visible arc light when cut-offfing, and it is less that its maximum is cut-off transfer current, about 1200A.Kyoto Protocol SF6 gas is put into one of restricted six kinds of greenhouse gas.SF6 is the extremely strong gases of a kind of greenhouse effect ".Though the proportion of SF6 is greater than air, along with turbulent flow, it still can move to atmospheric top.And in a single day get there, its greenhouse effect will be bigger 24900 times than CO2.The time limit that exists of SF6 estimates that Le Guan estimation is to be no less than 3200 the most between 8000 to 10000.Vacuum load switch adopts the vacuum interrupter arc extinguishing, and no arc light, drop-out current are greatly and environmental protection again.So vacuum load switch is the most rising a kind of on-load switch in China.
Along with the fast development of urban construction, ring network power supply progressively increases, and ring network power supply unit and box-type substation also increase gradually.Vacuum load switch is wherein being served as the important task of cut-offfing in the distribution line, is widely used.Existing vacuum load switch complex structure, volume is big, and drop-out current is little, and maximum can only be cut-off the 3.15kA electric current.Existing vacuum interrupter moving contact transmission mechanism adopts the transmission of 2-3 level usually, and part is many, and power loss is big.Existing arc control device are exposed outside, are subject to the danger of extraneous bump; Alternate and insulation against ground is subject to the defective of filth, condensation influence; The assembling link is many, mechanical unreliability.Isolating switch and on-load switch are operated simultaneously, cause on-load switch to close a floodgate prior to isolating switch easily, cause the operation of isolating switch on-load to cause the accident.Design earthed switch and supreme earthed switch is easy to generate capacitive discharge down only.
Summary of the invention
Technical problem to be solved in the utility model is at the existing state of the art, provide a kind of isolating switch and on-load switch separate operation, simultaneously possess the last earthed switch of synchronization action and following earthed switch, arc control device adopt solid encapsulation technique avoid exposed outside, transmission mechanism is 1 grade of transmission, can cut-offs the 20kA short circuit current.Be easier to make, more safe and reliable high breaking vacuum load switch.
The utility model solves the problems of the technologies described above the technical scheme that is adopted: this high breaking vacuum load switch, include framework, be installed on isolating switch separate on the framework, isolate fixed contact, go up earthed switch, earthed switch, link gear, high breaking vacuum load switch down, a solid envelope grade post, seal insulating base, push rod, on-load switch transmission mechanism admittedly.
1, isolating switch and last earthed switch: isolate fixed contact and be fixed on pole top, isolate moving contact and be fixed on the pole middle part, the isolation knife lower end is fixed on and isolates the moving contact place, the isolation knife middle-end is connected in pull bar, last earthed switch fixed contact is fixed on the mounting bracket, isolation knife rotates under the effect of pull bar, thereby isolation knife realizes isolating switch closing function and last earthed switch separating brake function when closely contacting with the isolation fixed contact, isolation knife is separated with the isolation fixed contact, thereby realize isolating switch separating brake function and last earthed switch closing function when closely contacting with last earthed switch fixed contact.
2, following earthed switch: the fixed contact of following earthed switch is fixed on the switch outlet copper bar, the ground connection cutter is fixed on the connecting lever, connecting lever is fixed on the grounding shaft, the ground connection cutter is that the center rotates with the earth's axis, thereby when the ground connection cutter closely contacts with fixed contact, realize earthed switch closing function down, thus when the ground connection cutter away from fixed contact away from the time realize earthed switch separating brake function down.
3, isolating switch and following earthed switch carry out combined operation by the link gear transmission: pull bar one end is connected the isolation knife middle-end in the link gear, the pull bar other end adopts bearing pin to be connected in first connecting lever, first connecting lever is fixed on isolates on the axle and can rotate, isolating axle is fixed on the framework, second connecting lever is fixed on the isolation the tip of the axis, second connecting lever adopts bearing pin to be connected with connecting rod, the connecting rod other end adopts bearing pin to be connected with the 3rd connecting lever, the 3rd connecting lever is fixed on the grounding shaft, grounding shaft is fixed on the framework and can rotates, ground connection connecting lever one end is fixed on the grounding shaft, and the ground connection connecting lever other end is connecting to descend the ground connection cutter of earthed switch.
Connect the ground connection positioning disc on this grounding shaft, be limited in the first weldering axle of framework by the breach on the ground connection positioning disc, thereby limit the rotational angle of grounding shaft, two terminal position is respectively down the combined floodgate and the separating brake position of earthed switch.
Isolate axle and be provided with the zero passage spring mechanism, the 4th connecting lever one end in the zero passage spring mechanism is fixed on isolates on the axle, and the other end is connected on the expansion link, and expansion link cooperates with flexible axis hole axle and links to each other, spacer spring is housed in the middle of expansion link and the telescopic shaft, and telescopic shaft is fixed on the second weldering axle of framework.Isolating switch is closed a floodgate and the enough pressure of separating brake position maintenance.
4, pole includes: be fixed on the framework admittedly seal insulating base, high breaking vacuum interrupter sealing and fixing is being sealed insulating base inside admittedly, and the sealing silica gel sealing is adopted in high breaking vacuum interrupter lower end, and insulative cap is fixed on solid envelope insulating base lower end.
5, the on-load switch transmission mechanism includes: push rod is fixed on the high breaking vacuum interrupter moving contact, push rod is connected by pin with the load connecting lever, the load connecting lever is fixed on the pole by the first insulation pin, the load connecting lever is thereby that function is closed in the disjunction and the pass of realizing the high breaking vacuum interrupter that rotate, center with the first insulation pin, insulation push rod one end connects by the second insulation pin, touch spring is equipped with in insulation push rod inside, the touch spring other end is being fixed the insulation inner push-rod, and the insulation inner push-rod is fixed on the load switch spring mechanism.The pressure of touch spring keeps certain pressure when the high breaking vacuum interrupter is closed a floodgate.
Compared with prior art, advantage of the present utility model is: be provided with earthed switch, down two earthed switches of earthed switch and two earthed switch synchronization actions are operated with the isolating switch interlock, have stopped the hidden danger of isolating switch and earthed switch misoperation; Pole avoids arc control device exposed outside, is subject to the danger of extraneous bump; Alternate and insulation against ground is subject to the defective of filth, condensation influence; On-load switch adopts 1 grade of transmission, and simple in structure, power loss is little, operates step by step with isolating switch, avoids causing on-load switch to close a floodgate prior to isolating switch, causes the operation of isolating switch on-load to cause the accident; This high breaking on-load switch manufacturing processing, simple to operate, safety and reliability of being easy to simple in structure.
Description of drawings
Fig. 1, Fig. 2 are the structural representation of the utility model embodiment;
Fig. 3 the utility model is embodied as front view;
Fig. 4 is the left view of Fig. 3;
Fig. 5 is the right view of Fig. 3;
The cutaway view that Fig. 6 closes a floodgate for isolating switch combined floodgate, last earthed switch and following earthed switch separating brake, on-load switch in the utility model enforcement;
Fig. 7 is for isolating switch separating brake, last earthed switch and following earthed switch in the utility model enforcement close a floodgate, the cutaway view of on-load switch separating brake.
Embodiment
Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.
As Fig. 1-shown in Figure 7, this high breaking vacuum load switch includes framework 1, the separate isolating switch 2 on it, last earthed switch 3, following earthed switch 4, high breaking vacuum load switch 5, pole 6, link gear 7, zero passage spring mechanism 8, on-load switch transmission mechanism 9, guidance panel 10, load switch spring mechanism 11 is set.
This isolating switch 2 and last earthed switch 3 include:
Isolate fixed contact 21 and be fixed on pole 6 tops, isolate moving contact 22 and be fixed on pole 6 middle parts, isolation knife 23 lower ends are fixed on and isolate moving contact 22 places, isolation knife 23 middle-ends are connected in pull bar 701, last earthed switch fixed contact 31 is fixed on the mounting bracket 32, isolation knife 23 rotates under the effect of pull bar 701, thereby isolation knife 23 realizes isolating switch 2 closing functions and last earthed switch 3 separating brake functions when closely contacting with isolation fixed contact 21, isolation knife 23 is separated with isolation fixed contact 21, thereby realize isolating switch 2 separating brake functions and last earthed switch 3 closing functions when closely contacting with last earthed switch 3 fixed contacts 31.
This time earthed switch 4 includes:
The fixed contact 41 of following earthed switch 4 is fixed on the switch outlet copper bar 11, ground connection cutter 42 is fixed on the connecting lever 712, connecting lever 712 is fixed on the grounding shaft 710, ground connection cutter 42 is that the center rotates with the earth's axis 710, thereby when ground connection cutter 42 and fixed contact 41 closely contact, realize earthed switch 4 closing functions down, thus when ground connection cutter 42 away from fixed contact 41 away from the time realize under earthed switch 4 separating brake functions.
This isolating switch 2 and following earthed switch 4 carry out combined operation by link gear 7 transmissions.
This link gear 7 includes:
Connect ground connection positioning disc 711 on this grounding shaft 710, be limited in the first weldering axle 11 of framework 1 by the breach on the ground connection positioning disc 711, thereby the rotational angle of restriction grounding shaft 710, two terminal position is respectively down the combined floodgate and the separating brake position of earthed switch 4.
Isolate axle 704 and be provided with zero passage spring mechanism 8, the 4th connecting lever 801 1 ends in the zero passage spring mechanism 8 are fixed on isolates on the axle 704, the other end is connected on the expansion link 802, expansion link 802 cooperates with telescopic shaft 804 hole axles and links to each other, expansion link 802 and the telescopic shaft 804 middle spacer springs 803 that are equipped with, telescopic shaft 804 is fixed on the second weldering axle 12 of framework 1.Isolating switch 2 is closed a floodgate and the enough pressure of separating brake position maintenance.
This pole 6 includes:
Be fixed on the framework 1 admittedly seal insulating base 61, high breaking vacuum interrupter 62 sealing and fixing are being sealed insulating base 61 inside admittedly, and 63 sealings of sealing silica gel are adopted in high breaking vacuum interrupter 62 lower ends, and insulative cap 64 is fixed on solid envelope insulating base 61 lower ends.
This on-load switch transmission mechanism 9 includes:
If the course of work of the present utility model is following:
Following earthed switch 4 and last earthed switch 3 close a floodgate, isolating switch 2 separating brakes, with guidance panel 10 oriented manipulation persons is direction of observation (promptly with shown in the direction of observation of Fig. 5), clockwise rotating grounding shaft 710 makes the ground connection cutter 42 of earthed switch 4 under its drive insert the fixed contact 41 of earthed switch 4 down, promptly descend earthed switch 4 to close a floodgate, meanwhile grounding shaft 710 makes it spur second connecting lever 705 by the 3rd connecting lever 709 pulling connecting rods 707, second connecting lever 705 rotates counterclockwise isolates axle 704, isolate axle 704 and rotate counterclockwise pulling pull bar 701, the isolation knife 23 of pull bar 701 pulling isolating switches 2 with isolate fixed contact 21 and separate and inserts the last earthed switch fixed contact 31 of earthed switch 3, i.e. isolating switch 2 separating brakes and last earthed switch 3 combined floodgates.Following earthed switch 4 and last earthed switch 3 combined floodgates, isolating switch 2 sub-gate position configuration states are by keeping at spacer spring 803 elastic force, and are spacing by ground connection positioning disc 711.
Following earthed switch 4 and last earthed switch 3 separating brakes, isolating switch 2 divide-shut brakes, with guidance panel 10 oriented manipulation persons is direction of observation (promptly with shown in the direction of observation of Fig. 5), rotating counterclockwise grounding shaft 710 makes the ground connection cutter 42 of earthed switch 4 under its drive separate the fixed contact 41 of earthed switch 4 down, promptly descend earthed switch 4 separating brakes, meanwhile grounding shaft 710 makes it spur second connecting lever 705 by the 3rd connecting lever 709 pulling connecting rods 707, second connecting lever 705 clockwise rotates isolates axle 704, isolate axle 704 and clockwise rotate pulling pull bar 701, the isolation knife 23 of pull bar 701 pulling isolating switches 2 is inserted and is isolated fixed contact 21 and separate the last earthed switch fixed contact 31 of going up earthed switch 3, and promptly isolating switch 2 closes a floodgate and last earthed switch 3 separating brakes.Following earthed switch 4 and last earthed switch 3 separating brakes, isolating switch 2 closing position states are by keeping at spacer spring 803 elastic force, and are spacing by ground connection positioning disc 711.
High breaking vacuum load switch 5 closes a floodgate, with guidance panel 10 oriented manipulation persons is direction of observation (promptly with shown in the direction of observation of Fig. 5), clockwise rotate main shaft 13 drive load switch spring mechanisms and make insulation inner push-rod 98 high-speed mobile, promote touch spring 97 high-speed mobile, touch spring 97 promotes insulation push rod 96 at a high speed and moves, insulation push rod 96 promotes load connecting lever 94 at a high speed, load connecting lever 94 turns clockwise at a high speed with pin 92 and promotes push rod 91 and do to move upward at a high speed, push rod 91 promotes high breaking vacuum interrupter 62 moving contacts at a high speed and moves upward to realize high breaking vacuum interrupter 62 closing functions, has touch spring pressure 97 to keep high breaking vacuum load switch 5 closing positions behind the combined floodgate.
High breaking vacuum load switch 5 separating brakes, with guidance panel 10 oriented manipulation persons is direction of observation (promptly with shown in the direction of observation of Fig. 5), rotate counterclockwise main shaft 13 drive load switch spring mechanisms and make insulation inner push-rod 98 high-speed mobile, discharge touch spring 97 high-speed mobile, and pulling insulation push rod 96 moves at a high speed, insulation push rod 96 is pulling load connecting lever 94 at a high speed, load connecting lever 94 is rotated counterclockwise pulling push rod 91 at a high speed with pin 92 and does to move downward at a high speed, push rod 91 spurs high breaking vacuum interrupter 62 moving contacts at a high speed and moves downward to realize high breaking vacuum interrupter 62 separating brake functions, and combined floodgate afterload switch spring mechanism keeps high breaking vacuum load switch 5 separating brake positions.
To sum up, simple to operate as long as rotation grounding shaft 710 and main shaft 13 just can be realized the divide-shut brake of isolating switch 2, last earthed switch 3, following earthed switch 4, high breaking vacuum load switch 5, and safe and reliable.
Claims (6)
1. high breaking vacuum load switch is characterized in that: include framework (1), be installed on isolating switch separate on the framework (2), isolate fixed contact (21), go up earthed switch (3), down earthed switch (4), link gear (7), high breaking vacuum load switch (5), a solid envelope level post (6), seal insulating base (61), push rod (91), on-load switch transmission mechanism (9) admittedly.
2. a kind of high breaking vacuum load switch according to claim 1, it is characterized in that: isolate fixed contact (21) and be fixed on pole (6) top, isolate moving contact (22) and be fixed on the pole middle part, isolation knife (23) lower end is fixed on isolation moving contact (22) and locates, isolation knife (23) middle-end is connected in pull bar (701), last earthed switch fixed contact (31) is fixed on the mounting bracket (32), and isolation knife (23) rotates under the effect of pull bar (701).
3. a kind of high breaking vacuum load switch according to claim 1, it is characterized in that: the fixed contact of following earthed switch (41) is fixed on the switch outlet copper bar (11), ground connection cutter (42) is fixed on the connecting lever (712), connecting lever (712) is fixed on the grounding shaft (710), and ground connection cutter (42) is that the center rotates with the earth's axis (710).
4. a kind of high breaking vacuum load switch according to claim 1, it is characterized in that: pull bar (701) one ends are connected isolation knife (23) middle-end in the link gear (7), pull bar (701) other end adopts bearing pin (702) to be connected in first connecting lever (703), first connecting lever (703) is fixed on isolates on the axle (704) and can rotate, isolating axle (704) is fixed on the framework (1), second connecting lever (705) is fixed on the end of isolating axle (704), second connecting lever (705) adopts bearing pin (706) to be connected with connecting rod (707), connecting rod (707) other end adopts bearing pin (708) to be connected with the 3rd connecting lever (709), the 3rd connecting lever (709) is fixed on the grounding shaft (710), grounding shaft (710) is fixed on the framework (1) and can rotates, ground connection connecting lever (712) one ends are fixed on the grounding shaft (710), and ground connection connecting lever (712) other end is connecting to descend the ground connection cutter (42) of earthed switch (4);
Grounding shaft (710) is gone up and is connected ground connection positioning disc (711), be limited in the first weldering axle (11) of framework (1) by the breach on the ground connection positioning disc (711), thereby the rotational angle of restriction grounding shaft (710), two terminal position is respectively down the combined floodgate and the separating brake position of earthed switch (4);
Isolate axle (704) and be provided with zero passage spring mechanism (8), the 4th connecting lever (801) one ends in the zero passage spring mechanism (8) are fixed on isolates on the axle (704), the other end is connected on the expansion link (802), expansion link (802) cooperates with telescopic shaft (804) hole axle and links to each other, expansion link (802) and the middle spacer spring (803) that is equipped with of telescopic shaft (804), telescopic shaft (804) is fixed on the second weldering axle (12) of framework (1).
5. a kind of high breaking vacuum load switch according to claim 1, it is characterized in that: be fixed on the framework (1) admittedly seal insulating base (61), high breaking vacuum interrupter (62) sealing and fixing is being sealed insulating base (61) inside admittedly, sealing silica gel (63) sealing is adopted in high breaking vacuum interrupter (62) lower end, and insulative cap (64) is fixed on solid envelope insulating base (61) lower end.
6. a kind of high breaking vacuum load switch according to claim 1, it is characterized in that: push rod (91) is fixed on high breaking vacuum interrupter (62) moving contact, push rod (91) is connected by pin (92) with load connecting lever (94), load connecting lever (94) is fixed on the pole (6) by the first insulation pin (93), load connecting lever (94) is that the center rotates with the first insulation pin (93), insulation push rod (96) one ends connect by second dielectric pin (95), touch spring (97) is equipped with in insulation push rod (96) inside, touch spring (97) other end is being fixed insulation inner push-rod (98), and insulation inner push-rod (98) is fixed on the load switch spring mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205485400U CN201904273U (en) | 2010-09-25 | 2010-09-25 | High-breaking vacuum load switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205485400U CN201904273U (en) | 2010-09-25 | 2010-09-25 | High-breaking vacuum load switch |
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| Publication Number | Publication Date |
|---|---|
| CN201904273U true CN201904273U (en) | 2011-07-20 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2010205485400U Expired - Lifetime CN201904273U (en) | 2010-09-25 | 2010-09-25 | High-breaking vacuum load switch |
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| CN (1) | CN201904273U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592882A (en) * | 2012-03-06 | 2012-07-18 | 中能电气（福清）有限公司 | Bidirectional bi-travel operating mechanism for three-station vacuum arc extinguish chamber |
| CN102969192A (en) * | 2012-11-07 | 2013-03-13 | 博耳(无锡)电力成套有限公司 | Medium-pressure vacuum loading device |
| CN103474270A (en) * | 2013-08-29 | 2013-12-25 | 浙江博益电气有限公司 | Solid sealed type vacuum load switch |
| CN104300416A (en) * | 2014-09-12 | 2015-01-21 | 宁波耀华电气科技有限责任公司 | Combination switch with dual-isolation function |
| CN104681347A (en) * | 2015-03-10 | 2015-06-03 | 埃尔凯电器（珠海）有限公司 | Operating mechanism and high-voltage switch with operating mechanism |
| CN105390328A (en) * | 2015-12-14 | 2016-03-09 | 珠海康晋电气有限公司 | Pneumatic load switch |
| CN106449234A (en) * | 2016-12-23 | 2017-02-22 | 福建逢兴机电设备有限公司 | Breaker combined electric appliance |
| CN106653458A (en) * | 2016-12-20 | 2017-05-10 | 北京双杰电气股份有限公司 | Three-phase isolating switch |
| CN114121541A (en) * | 2020-08-28 | 2022-03-01 | 西门子股份公司 | Gas-insulated medium-or high-voltage switchgear assembly having a blade contact carrier |
| CN115472461A (en) * | 2022-11-10 | 2022-12-13 | 江苏苏中开关厂有限公司 | High-breaking load switch |
-
2010
- 2010-09-25 CN CN2010205485400U patent/CN201904273U/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102592882B (en) * | 2012-03-06 | 2015-06-24 | 中能电气（福清）有限公司 | Bidirectional bi-travel operating mechanism for three-station vacuum arc extinguish chamber |
| CN102592882A (en) * | 2012-03-06 | 2012-07-18 | 中能电气（福清）有限公司 | Bidirectional bi-travel operating mechanism for three-station vacuum arc extinguish chamber |
| CN102969192A (en) * | 2012-11-07 | 2013-03-13 | 博耳(无锡)电力成套有限公司 | Medium-pressure vacuum loading device |
| CN102969192B (en) * | 2012-11-07 | 2015-02-11 | 博耳(无锡)电力成套有限公司 | Medium-pressure vacuum loading device |
| CN103474270A (en) * | 2013-08-29 | 2013-12-25 | 浙江博益电气有限公司 | Solid sealed type vacuum load switch |
| CN104300416A (en) * | 2014-09-12 | 2015-01-21 | 宁波耀华电气科技有限责任公司 | Combination switch with dual-isolation function |
| CN104300416B (en) * | 2014-09-12 | 2016-08-17 | 宁波耀华电气科技有限责任公司 | There is the cubicle switch of double isolation features |
| CN104681347A (en) * | 2015-03-10 | 2015-06-03 | 埃尔凯电器（珠海）有限公司 | Operating mechanism and high-voltage switch with operating mechanism |
| CN105390328A (en) * | 2015-12-14 | 2016-03-09 | 珠海康晋电气有限公司 | Pneumatic load switch |
| CN106653458A (en) * | 2016-12-20 | 2017-05-10 | 北京双杰电气股份有限公司 | Three-phase isolating switch |
| CN106449234A (en) * | 2016-12-23 | 2017-02-22 | 福建逢兴机电设备有限公司 | Breaker combined electric appliance |
| CN114121541A (en) * | 2020-08-28 | 2022-03-01 | 西门子股份公司 | Gas-insulated medium-or high-voltage switchgear assembly having a blade contact carrier |
| CN115472461A (en) * | 2022-11-10 | 2022-12-13 | 江苏苏中开关厂有限公司 | High-breaking load switch |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of utility model: High-breaking vacuum load switch Effective date of registration: 20141015 Granted publication date: 20110720 Pledgee: Fujian Longyan rural commercial bank Limited by Share Ltd Phoenix branch Pledgor: Fujian Fengxing Mechanical & Electrical Equipment Co.,Ltd. Registration number: 2014990000850 |
|
| PLDC | Enforcement, change and cancellation of contracts on pledge of patent right or utility model | ||
| PC01 | Cancellation of the registration of the contract for pledge of patent right |
Date of cancellation: 20171017 Granted publication date: 20110720 Pledgee: Fujian Longyan rural commercial bank Limited by Share Ltd Phoenix branch Pledgor: Fujian Fengxing Mechanical & Electrical Equipment Co.,Ltd. Registration number: 2014990000850 |
|
| PC01 | Cancellation of the registration of the contract for pledge of patent right | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110720 |
|
| CX01 | Expiry of patent term |