CN1815662A - Actuating mechanism of reverse-connection protection earth-fault circuit breaker with static pressure balance - Google Patents
Actuating mechanism of reverse-connection protection earth-fault circuit breaker with static pressure balance Download PDFInfo
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- CN1815662A CN1815662A CN 200510007238 CN200510007238A CN1815662A CN 1815662 A CN1815662 A CN 1815662A CN 200510007238 CN200510007238 CN 200510007238 CN 200510007238 A CN200510007238 A CN 200510007238A CN 1815662 A CN1815662 A CN 1815662A
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- sleeve
- soft magnetic
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Abstract
The disclosed actuating mechanism includes following parts: a permanent magnet located at place near to a soft magnet; being located inside a sleeve, the soft magnet drives moving contact move up down under action of magnetic force; a closing coil is wrapped on one end of the sleeve near to the permanent magnet; a breaking winding is wrapped on the other end of the sleeve far apart from the permanent magnet; each two static contacts in four static contacts are setup at two sides of the sleeve respectively; each two moving contacts in four moving contacts are setup at two sides of the sleeve respectively, the moving contacts and four static contacts are in face to face; being sleeve joint on the soft magnet, a balancing adjustment rack includes accommodating slot at two ends for placing adjusting block; the rack is in use for adjusting contact force of pair between moving contact and static contact.
Description
Technical field
The present invention relates to a kind of earth-fault protection, particularly relate to a kind of actuating mechanism of ground-fault interrupter of the reverse-connection protection with static pressure balance.
Background technology
Because ground-fault interrupter can effectively prevent personal electric shock, electric equipment and fire incident.Thereby be used widely.Ground-fault interrupter is implemented the earth fault short-circuit protection by actuating mechanism; when the needs reverse-connection protection; the GFCI panel jack is not charged; so GFCI must have four pairs of silver tipped contacts; but when practical operation, these four pairs of silver tipped contacts are owing to reasons such as tolerances; often can not all reliably contact, so that cause cisco unity malfunction.
Summary of the invention
The actuating mechanism that the purpose of this invention is to provide a kind of ground-fault interrupter of the reverse-connection protection with static pressure balance.
Above-mentioned purpose of the present invention is achieved in that a kind of actuating mechanism of ground-fault interrupter of the reverse-connection protection with static pressure equilibrium, comprising:
A permanent magnet is positioned at the position contiguous with a soft magnetic bodies;
A soft magnetic bodies is positioned at a sleeve, and this soft magnetic bodies drives moving contact and moves up and down under the effect of magnetic force;
A closing coil is wrapped in an end of the nearly permanent magnet of sleeve;
A broken coil is wrapped in an end of the permanent magnet far away of sleeve;
Four fixed contacts split the both sides at sleeve in twos;
Four moving contacts split the both sides at sleeve in twos, and relative with four fixed contacts;
A balance adjustment rack, be socketed on the soft magnetic bodies, the two ends of this balance adjustment rack are provided with storage tank respectively, place in it and adjust piece, when balancing stand with soft magnetic bodies on the moving moving contact of shipper pole when contacting with fixed contact, this adjust piece a fixed contact to the downforce effect of a moving contact under other end perk, force another moving contact reliably to contact thus with another fixed contact.
Wherein, the bottom of described adjustment piece is provided with the central pivot point of a projection;
Wherein, the storage tank of described balance adjustment rack has a depression that adapts with the central pivot point of adjusting piece.
Wherein, the size of described adjustment piece is enough to make it to swing in storage tank.
Wherein, be provided with a retainer spring in the described sleeve, the fixedly connected sleeve of one end, the fixedly connected soft magnetic bodies of its other end.When broken coil is switched on, can utilize the recovery elastic force of broken coil and retainer spring like this, make soft magnetic bodies break away from permanent magnet.
Wherein, described soft magnetic bodies is the soft magnetism rod.
This shows, the present invention realizes that by the principle of static pressure balance moving contact contacts with the reliable of fixed contact, just, balance in the storage tank of balancing stand (308) is adjusted an end of piece 309 under the suppressing action of the static pressure of a fixed contact, make other end perk, thereby force another moving contact reliably to contact with another fixed contact, this is similar to the principle of seesaw, and an end presses down and makes other end perk.Therefore the present invention can realize that whole moving contacts contact with whole the reliable of fixed contact.
The present invention is described in detail below in conjunction with accompanying drawing.
Description of drawings
Fig. 1 is the schematic diagram of the actuating mechanism of ground-fault interrupter of the present invention, and wherein permanent magnet and soft magnetic bodies are in not attracting state;
Fig. 2 is the schematic diagram of the actuating mechanism of ground-fault interrupter of the present invention, and wherein permanent magnet and soft magnetic bodies are in attracting state;
Fig. 3 is the balancing stand of Fig. 1 of the present invention and Fig. 2 and the schematic diagram that concerns of adjusting piece; Wherein Fig. 3 a has shown the structure of balancing stand; Fig. 3 b has shown when moving on balancing stand is not, the relation of moving contact and fixed contact;
Fig. 3 c has shown when moving on the balancing stand, the moving contact when the adjustment piece does not adjust and the relation of fixed contact;
Fig. 3 d has shown the relation of adjusting adjusted moving contact of piece and fixed contact;
Fig. 4 is a circuit diagram of the present invention.
Embodiment
Fig. 1 and Fig. 2 show the schematic diagram of the actuating mechanism of ground-fault interrupter of the present invention, comprising:
A permanent magnet 202 is positioned at the position with a soft magnetic bodies 312 vicinities;
A soft magnetic bodies 312 is positioned at a sleeve, and this soft magnetic bodies 312 drives moving contact 305 and moves up and down under the effect of magnetic force;
A closing coil 310 is wrapped in an end of the nearly permanent magnet 202 of sleeve;
A broken coil 311 is wrapped in an end of the permanent magnet far away 202 of sleeve;
A balance adjustment rack 308, be socketed in soft magnetic bodies 312 (referring to Fig. 3 a) on, the two ends of this balance adjustment rack 308 are provided with storage tank respectively, place in it and adjust piece 309, when balancing stand 308 with soft magnetic bodies on the moving moving contact 305 of shipper pole when contacting with fixed contact 203, this adjusts piece 309 under the downforce effect of a fixed contact (for example right-hand member fixed contact 203 of Fig. 3 c) to a moving contact, adjusts the contact force of another moving contact and another fixed contact (for example left end fixed contact 203 of Fig. 3 c).
Wherein, the bottom of described adjustment piece 306 is provided with the central pivot point of a projection;
Wherein, the storage tank of described balance adjustment rack 308 has a depression that adapts with the central pivot point of adjusting piece.
Wherein, the size of described adjustment piece is enough to make it to swing in storage tank.
Wherein, when 310 short time of closing coil switch on, draw magnetic force on producing one, make on the soft magnetic bodies and move,, make soft magnetic bodies 312 drive moving contacts 305 thus and contact with fixed contact 203 with the permanent magnet adhesive; When 311 short time of broken coil switch on, produce a drop-down magnetic force, soft magnetic bodies 312 is moved down, separate with permanent magnet 202, make soft magnetic bodies 312 drive moving contact 305 thus and disengage with fixed contact 203.
Wherein, be provided with a retainer spring 307 in the described sleeve, the fixedly connected sleeve of one end, the fixedly connected soft magnetic bodies 312 of its other end.When broken coil 311 energisings, can utilize the recovery elastic force of broken coil 311 and retainer spring 307 like this, make soft magnetic bodies 307 break away from permanent magnet 202.
Wherein, described soft magnetic bodies 312 forms one with balancing stand 308.
Wherein, the both sides of described balancing stand 308 are respectively equipped with the balance of insulation and adjust piece 309, and described soft magnetic bodies 312 is adjusted piece 309 drive moving contacts 305 by balance and moved.
Wherein, described soft magnetic bodies 312 is soft magnetism rods.
Because two coils of the actuating mechanism of ground-fault interrupter of the present invention are consumed power at short notice only, is that zero-power is connected during connecting, and therefore can save a large amount of energy.
Fig. 3 has shown and utilizes static pressure balance principle of the present invention to realize the graph of a relation that moving contact of the present invention and fixed contact reliably contact.
Referring to Fig. 3 a, balance adjustment rack 308 is socketed on the soft magnetic bodies 312, and the two ends of this balance adjustment rack 308 are provided with storage tank respectively, places in it and adjusts piece 309.
Referring to Fig. 3 b, when balancing stand 308 moved on not, moving contact 305 did not contact with fixed contact 203.
Referring to Fig. 3 c, when balancing stand 308 with soft magnetic bodies on the moving moving contact 305 of shipper pole when contact with fixed contact 203, moving contact of these adjustment piece 309 drives contacts with a fixed contact, another moving contact is then waited for another fixed contact and being contacted.
Referring to Fig. 3 d, under the downforce effect of a fixed contact (for example right-hand member fixed contact 203 of Fig. 3 c), adjust piece 309 other end perks to a moving contact.Another moving contact is reliably contacted with another fixed contact (for example left end fixed contact 203 of Fig. 3 c).
This shows, the present invention realizes that by the principle of static pressure balance moving contact contacts with the reliable of fixed contact, just, balance in the storage tank of balancing stand 308 is adjusted an end of piece 309 under the suppressing action of the static pressure of a fixed contact, make other end perk, thereby force another moving contact reliably to contact with another fixed contact, this is similar to the principle of seesaw, and an end presses down and makes other end perk.Therefore the present invention can realize that whole moving contacts contact with whole the reliable of fixed contact.
The course of work of the actuating mechanism of ground-fault interrupter is described below in conjunction with Fig. 1 and Fig. 2.
When initial condition, under retainer spring 307 effects, GFCI punishes disconnected state, (K in respect to Fig. 4 when pressing reset key (RESET) as described in Figure 1
3) closing coil 310 is (with respect to coil J among Fig. 4
1) charged, draw magnetic field in the formation, under the magneticaction in this magnetic field, soft magnetism rod 312 moves on rapidly, makes soft magnetism rod 312 and permanent magnet 202 adhesives, and because of balancing stand 308 be an one with soft magnetism rod 312, thereby balance goes up shipper pole simultaneously and moves on the movable contact spring 305 and move.Finish GFCI with static contact 203 connections and connect process, its on-state as shown in Figure 2.
Otherwise, when hindering electric current and other reasons for some reason, make broken coil 312 charged, form drop-down magnetic field, this moment, soft magnetic bodies 312 drop-down electromagnetic forces and retainer spring 307 were combined into greater than permanent magnet and soft magnetic bodies the suction-combining force, balancing stand were moved down, to making the GFCI disjunction rapidly.
Can find out that from last surface analysis just the actuating mechanism characteristics are: 1, GFCI connects and keeps relying on the electromagnetism the suction-combining force of permanent magnet and soft magnetic bodies, does not need the closing coil energising thereby does not have power consumption.2, different other GFCI of GFCI connect with mechanical force, are suitable for Long-distance Control and connect disjunction with electromagnetic force.
Below in conjunction with Fig. 4 the circuit theory of GFCI is elaborated
The GFCI circuit is by transducer, electronic circuit, and ground fault detection circuit and action controlling organization are formed.
Transducer is by detecting magnet ring (zero sequence current mutual inductor) N
1With neutral misconnection ground protection coil N
2Form.
Electronic circuit is by DC power supply, the IC amplifying circuit, and neutral misconnection ground protective circuit, GFCI connects circuit, disjunction control circuit composition.
Coil J
2One end is connected with LINE, the other end and diode D
1Anodal linking to each other.D1 other end IC 5 pin connect, and power supply is through diode D
1Rectification is for the about 27V working dc power of IC.
(RESET) button K resets
3One end and D
1Negative terminal connects, the other end and capacitor C
7And resistance R
4Connect capacitor C
7And resistance R
4The other end and capacitor C
8And resistance R
3Connect capacitor C
8And resistance R
3Other end ground connection is worked as K
3When pressing, connect circuit and produce a pulse enable signal SCR VD
5Conducting, closing coil J
1Charged, GFCI connects.
Detect magnet ring N
1One end is connected the other end and is connected resistance R through resistance R 1 with IC 2 pin with IC 3 pin
2One end is connected with IC 1 pin, and the R2 other end is connected with IC 2 pin.Broken coil J2 one end is connected with power supply, and the J2 other end is connected with controllable silicon VD7 one end, controllable silicon VD7 other end ground connection, and controllable silicon VD7 trigger electrode is connected with IC 7 pin.When earth fault current, detect magnet ring secondary induced signal and amplify through IC, it reaches set point (being generally 5mA), IC 7 pin output triggering signal, controllable silicon VD7 conducting, broken coil is charged, makes the GFCI disjunction.
R
2Value is determined GFCI disjunction fault current size.
Coil N
1N
2Constitute transformer-coupled oscillator, when neutral misconnection ground phenomenon took place, this oscillator is super to shake, and when amplitude reached the IC threshold values, IC 7 pin output signals made the GFCI disjunction.
Claims (6)
1, a kind of actuating mechanism of ground-fault interrupter of the reverse-connection protection with static pressure equilibrium comprises:
A permanent magnet (202) is positioned at the position contiguous with a soft magnetic bodies (312);
A soft magnetic bodies (312) is positioned at a sleeve, and this soft magnetic bodies (312) drives moving contact (305) and moves up and down under the effect of magnetic force;
A closing coil (310) is wrapped in an end of the nearly permanent magnet (202) of sleeve;
A broken coil (311) is wrapped in an end of the permanent magnet far away (202) of sleeve;
Four fixed contacts (203) split the both sides at sleeve in twos;
Four moving contacts (305) split the both sides at sleeve in twos, and relative with four fixed contacts (203);
A balance adjustment rack (308), be socketed on the soft magnetic bodies (202), the two ends of this balance adjustment rack (308) are provided with storage tank respectively, place in it and adjust piece (309), when balancing stand (308) is gone up the moving moving contact (305) of shipper pole and fixed contact (203) when contacting with soft magnetic bodies (312), this adjust piece (309) a fixed contact to the downforce effect of a moving contact under other end perk, force another moving contact reliably to contact thus with another fixed contact.
2, actuating mechanism according to claim 1, wherein, the bottom of described adjustment piece (309) is provided with the central pivot point of a projection;
3, according to claim 1,2 described actuating mechanisms, wherein, the storage tank of described balance adjustment rack (308) has a depression that adapts with the central pivot point of adjusting piece (309).
4, according to claim 1,2,3 described actuating mechanisms, wherein, the size of described adjustment piece is enough to make it to swing in storage tank.
5, actuating mechanism according to claim 1 wherein, is provided with a retainer spring (307) in the described sleeve, the fixedly connected sleeve of one end, the fixedly connected soft magnetic bodies of its other end (312).
6, actuating mechanism according to claim 1, wherein, described soft magnetic bodies (312) is the soft magnetism rod.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100072388A CN100370569C (en) | 2005-02-05 | 2005-02-05 | Actuating mechanism of reverse-connection protection earth-fault circuit breaker with static pressure balance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100072388A CN100370569C (en) | 2005-02-05 | 2005-02-05 | Actuating mechanism of reverse-connection protection earth-fault circuit breaker with static pressure balance |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1815662A true CN1815662A (en) | 2006-08-09 |
| CN100370569C CN100370569C (en) | 2008-02-20 |
Family
ID=36907778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100072388A Active CN100370569C (en) | 2005-02-05 | 2005-02-05 | Actuating mechanism of reverse-connection protection earth-fault circuit breaker with static pressure balance |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100370569C (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5644464A (en) * | 1995-01-12 | 1997-07-01 | Pacific Sources, Inc. | Resettable latch mechanism |
| US5933063A (en) * | 1997-07-21 | 1999-08-03 | Rototech Electrical Components, Inc. | Ground fault circuit interrupter |
| CA2425810C (en) * | 2000-10-16 | 2007-04-10 | Leviton Manufacturing Co., Inc. | Circuit interrupting device |
| CN1220236C (en) * | 2002-10-09 | 2005-09-21 | 浙江东正电气有限公司 | Grounding failure circuit breaker with backing protection function |
-
2005
- 2005-02-05 CN CNB2005100072388A patent/CN100370569C/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN100370569C (en) | 2008-02-20 |
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Owner name: JIANGSU TOLLEA TECHNOLOGY CO., LTD. Free format text: FORMER OWNER: SHANGHAI TONGLING INVESTMENT DEVELOPMENT CO., LTD. Effective date: 20130528 |
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Effective date of registration: 20130528 Address after: Dalian Dongrun Logistics Park A03b 215400 in Jiangsu Province, Taicang City Economic Development Zone Patentee after: General Protecht Group Inc. Address before: 201800 Shanghai City, Jiading District Xing Xian Lu No. 1388 building 4 room 3100 Patentee before: Shanghai Tongling Investment and Development Co., Ltd. |
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Owner name: SHANGHAI TONGLING INVESTMENT DEVELOPMENT CO., LTD. Free format text: FORMER OWNER: JIANGSU TOLLEA TECHNOLOGY CO., LTD. Effective date: 20150701 |
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Effective date of registration: 20150701 Address after: 201800 Shanghai City, Jiading District Xing Xian Lu No. 1388 building 4 room 3100 Patentee after: Shanghai Tongling Investment and Development Co., Ltd. Address before: Dalian Dongrun Logistics Park A03b 215400 in Jiangsu Province, Taicang City Economic Development Zone Patentee before: General Protecht Group Inc. |
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Effective date of registration: 20171117 Address after: Dalian road Taicang City Dongrun Logistics Park A03b 215400 in Suzhou City, Jiangsu Province Economic Development Zone Patentee after: General Protecht Group Inc. Address before: 201800 Shanghai City, Jiading District Xing Xian Lu No. 1388 building 4 room 3100 Patentee before: Shanghai Tongling Investment and Development Co., Ltd. |
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