CN201142307Y - Mechanical auxiliary electromagnetic tripping device - Google Patents
Mechanical auxiliary electromagnetic tripping device Download PDFInfo
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- CN201142307Y CN201142307Y CNU2007200644023U CN200720064402U CN201142307Y CN 201142307 Y CN201142307 Y CN 201142307Y CN U2007200644023 U CNU2007200644023 U CN U2007200644023U CN 200720064402 U CN200720064402 U CN 200720064402U CN 201142307 Y CN201142307 Y CN 201142307Y
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Abstract
The utility model relates to a mechanical-assisted electromagnetic tripping mechanism which can be widely used for various circuit breakers, such as a leakage protective circuit breaker, an overcurrent protective circuit breaker, an overvoltage protective circuit breaker, an electric arc protective circuit breaker, a short circuit protective circuit breaker and so on. The tripping mechanism comprises a movable spring, a movable spring control part and a mechanism working state control part. When the coil is charged with electricity, the mechanism is in the working state, and when the coil loses electricity, the mechanism is in the tripping state. The power end adopts reverse connection with the load end, and if the coil is charged with no electricity, the mechanism cannot work. By adopting the mechanical-assisted structure, an angle of 90 degrees is formed between the action detection of the movable spring and the action direction of the iron core for controlling the working state of the mechanism, the action of the movable spring with required larger power is controlled by using the mechanical power, and the action of the iron core is controlled by using smaller electromagnetic force. The mechanism has the advantages that the excessive tripping current can be avoided, the service life of the mechanism can be greatly prolonged, the problems of high coil power dissipation and serious heat emission of the general electromagnetic mechanism can be avoided, and the service life and the reliability of the mechanism can be greatly improved.
Description
Affiliated technical field
The utility model relates to a kind of electromagnetic releaser mechanism, and especially a kind of electromagnetic releaser mechanism that is applied to circuit breaker can be widely used in all kinds of circuit breakers such as earth leakage protective, overcurrent protection, overvoltage protection, arc protection, short-circuit protection.
Background technology
Development along with modern science and technology; electricity is the important element that people's daily life can't be left; Electrical Safety is also paid attention to by people day by day, and people use various circuit breakers to be implemented in electricity consumption circuit to occur cutting off in time when dangerous, with the safety of protection people's life, property.As the tripping mechanism of one of circuit breaker critical component, the mode of its processing safety, reliability, useful life and action all is related to the fail safe and the reliability of circuit breaker.Tripping mechanism in the circuit breaker of Shi Yonging mainly contains three class modes in the market:
1, mechanical mechanism resets.
2, electromagnetic relay formula.
3, permanent magnet auxiliary selenoid relay.
More than three class modes separately defective is all arranged:
The 1st kind is adopted pure mechanical mechanism to reset, and when the zero line of power supply disconnects, can not cut off circuit, and feasible work with electric loading but has electricity, is in the state that is absolutely unsafe; Simultaneously, when power end and load end reversal connection, can not open circuit; And coil when getting electric thread off required electric current very big, also influence useful life of tripping mechanism.The mechanism of the 2nd kind of electromagnetic relay formula has avoided the defective of the 1st kind of mechanical mechanism effectively, and it is big but to exist the relay coil power consumption, and heating is serious, influences the useful life and the reliability of mechanism.The mechanism of the 3rd kind of permanent magnet auxiliary selenoid relay, solved the coil power dissipation problem of the mechanism of the 2nd kind of electromagnetic relay formula, but still adopted coil to get the working method of electric dropout, can't solve the problem of " when the zero line of power supply disconnects; can not cut off circuit; feasible work with electric loading but has electricity, is in the state that is absolutely unsafe "; Also exist electric current required when threading off very big, also influence the problem in the useful life of tripping mechanism.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of problem that can eliminate or alleviate described prior art existence, can be widely used for the mechanical assistance electromagnetic releaser mechanism of all kinds of circuit breakers, and have handling safety, powerful, characteristics that power consumption is little.
The technical scheme that its technical problem that solves the utility model adopts is:
The mechanical assistance electromagnetic releaser mechanism comprises: moving spring group, moving spring group control section, mechanism's operating state control section, moving spring group comprises: fixed contact 4, moving contact 5, movable contact spring 14 are used to realize the conducting and the disconnection of circuit breaker.Moving contact 5 is fixed on the movable contact spring 14, and fixed contact 4 is fixed on the mounting circuit boards 12, when circuit breaker is in closure state, is fixed on moving contact 5 and fixed contact 4 closures that are fixed on the mounting circuit boards 12 on the movable contact spring 14, has realized the conducting of mechanism.Moving spring group control section comprises: reset key 1, pull bar 2, back-moving spring 3, support 6, hitch frame 7, machine leader 8 are used to control the action of moving spring group.One side of pull bar 2 bottoms is the inclined-plane, and another side is a groove.One end of machine leader 8 is the catch of with groove, and top is porose.The middle part of hitch frame 7 and top are porose respectively, and hitch frame 7 can freely move up and down in the inside of support 6.Machine leader 8 is inserted in the hitch frame 7.Mechanism's operating state control section comprises: iron core 9, yoke 10, coil 11, mounting circuit boards 12, coil spring 13, iron core 9 are controlled the operating state of entire mechanism by the service position of action drives machine leader 8.One end of iron core 9 has a groove.Iron core 9 outer cover have coil 11, and its magnetic pole one is rectified facing to yoke 10.Machine leader 8 is stuck on the iron core 9, moves along with the motion of iron core 9.
The mechanical assistance electromagnetic releaser mechanism adopts the working method of electromagnetic type, makes coil get when electric, and mechanism is in running order, and during coil losing electricity, mechanism is in trip status.Can realize like this when any line (live wire or zero line) of power supply disconnects, cutting off circuit; When power end and load end reversal connection, because of coil not electric, mechanism does not work.Adopt the structure of mechanical assistance, the direction of action of feasible moving spring group and the iron core direction of action of controlling organization operating state become an angle of 90 degrees, need the action of the moving spring group of power greatly with machine power control, with the action of less electromagnetic force control iron core.
The beneficial effect of the mechanical assistance electromagnetic releaser mechanism that the utility model proposes is, because of the mode that mechanism adopts coil losing electricity to thread off, avoided excessive drop-away current, can prolong the useful life of mechanism greatly.Adopted the structure of mechanical assistance, need the action of the moving spring group of big power with machine power control, with the action of less electromagnetic force control iron core, avoided the problem that coil power dissipation is big, heating is serious of general electromagnetic mechanism, can improve the useful life and the reliability of mechanism greatly.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is a stereogram of the present utility model;
Fig. 2 is an A-A sectional view of the present utility model;
Fig. 3 to Figure 10 is the sectional view of key operations in the course of action of the present utility model.
Wherein: 1. reset key, 2. pull bar, 3. back-moving spring, 4. fixed contact, 5. moving contact, 6. support, 7. hitch frame, 8. machine leader, 9. iron core, 10. yoke, 11. coils, 12. mounting circuit boards, 13. coil springs, 14. movable contact springs.
Embodiment
The circuit breaker tripping mechanism that the present invention relates to is the mechanical assistance electromagnetic type, comprise: moving spring group, moving spring group control section, mechanism's operating state control section, its concrete formation comprises: reset key 1, pull bar 2, back-moving spring 3, fixed contact 4, moving contact 5, support 6, hitch frame 7, machine leader 8, iron core 9, yoke 10, coil 11, mounting circuit boards 12, coil spring 13, movable contact spring 14.Wherein, fixed contact 4, moving contact 5, movable contact spring 14 are formed moving spring group, realize the conducting and the disconnection of circuit breaker; Reset key 1, pull bar 2, back-moving spring 3, support 6, hitch frame 7, machine leader 8 are formed its moving spring group control section, the action of the moving spring group of control; Iron core 9, yoke 10, coil 11, mounting circuit boards 12, coil spring 13 formed the control section of mechanism's operating states, the service position of the action drives machine leader 7 by iron core 9, thus reach the purpose of the operating state of control entire mechanism.
Wherein, as shown in Figure 2, reset key 1 adopts engineering plastics to make, and a pull bar installing hole is arranged at the bottom; Pull bar 2 adopts stainless steel material, one side the bottom is the inclined-plane, another side is a groove; Back-moving spring 3 and coil spring 13 adopt spring steel wire; Fixed contact 4 and moving contact 5 adopt the silver-bearing copper composite material; Support 6 and hitch frame 7 can adopt resistant to elevated temperatures engineering plastics such as PBT or PPS to make, hitch frame 7 as shown in Figure 5, middle part and top are porose respectively, hitch frame 7 is support 6 inner can freely moving up and down; Machine leader 8 adopts stainless steel material to make, and the one end is the catch of with groove, and top is porose; Iron core 9 and yoke 10 adopt the electrical pure iron of high magnetic permeability, low remanent magnetism to make, and an end of iron core 9 has a groove; Movable contact spring 14 adopts beryllium-bronze or phosphor bronze elastomeric material to make.
Specify implementation procedure of the present invention below with reference to Fig. 3 to Figure 10.
Fig. 3 is that circuit breaker is when installing, tripping mechanism is in standby condition, at this moment coil 11 gets by mounting circuit boards 12, so, coil 11 inside generate an electromagnetic field, the trend that makes the oriented yoke end face 10a motion of iron core 9, but because of the electric current of coil 11 inside less, the electromagnetic field that produces is not enough to overcome the air reluctance between yoke end face 10a and iron core end face 9a and the bounce of coil spring 13, iron core 9 and be stuck in the machine leader 8 on the iron core 9 and be failure to actuate.
When pressing reset key 1 with external force, as shown in Figure 4, when the bounce that overcomes back-moving spring 3 under external force when pull bar 2 moves downward, the inclined-plane 2a of pull bar 2 will transmit the component of a horizontal direction by limit, the hole 8a of machine leader 8 to machine leader 8, promote machine leader 8, and drive the bounce that iron cores 9 overcome coil spring 13 by machine leader 8 and move to yoke end face 10a.
The end face 9a that always moves to iron core 9 contacts with yoke end face 10a, at this moment, the straight flange 2b of pull bar 2 contacts with the left side, the hole 8a of machine leader 8, as shown in Figure 5, because of the magnetic resistance between yoke end face 10a and iron core end face 9a reduces greatly, the magnetic force that yoke 10 and iron core are 9 is enough to overcome the bounce of coil spring 13, thereby makes iron core 9 rest on existing position, and the right hole limit 8b of machine leader 8 has entered into the groove 2c of pull bar 2.
At this moment, the external force that is applied on the reset key 1 is removed, as Fig. 6 and Fig. 7, pull bar 2 will be under the effect of the bounce of back-moving spring 3, move upward, in motion process, the groove 2c of pull bar 2 will hook the right, hole 8b of machine leader 8, machine leader 8 is moved upward, because of machine leader 8 is inserted in the hitch frame 7, so, hitch frame 7 also moves upward thereupon, the both wings 7a of hitch frame 7 promotes movable contact spring 14 upwards deformation, up to the moving contact 5 and fixed contact 4 closures that are fixed on the mounting circuit boards 12 that are fixed on the movable contact spring 14, has realized the conducting of mechanism.At this moment, circuit breaker is in closure state.
When occurring safety failures such as electric leakage, overcurrent, overvoltage, electric arc, short circuit in the residing circuit of circuit breaker, the detecting fault of circuit breaker and treatment circuit only need make coil 11 dead electricity.When coil 11 dead electricity, referring to Fig. 8, because of coil 11 no currents, the magnetic field diminishes that it is inner, the magnetic force that yoke 10 and iron core are 9 also disappears, and iron core 9 will promote machine leader 8 and move right under the effect of coil spring 13 bounces, meet the inclined-plane 2a of pull bar 2 up to the left hole of machine leader 8 limit 8a, its right hole limit 8b also will withdraw among the groove 2c of pull bar 2.
Like this, pull bar 2 can not hook machine leader 8 again, pull bar 2 will move upward under the effect of back-moving spring 3 bounces, and movable contact spring 14 will be under the effect of self deformation elastic force, promoting hitch frame 7 moves downward, the moving contact 5 that is fixed on the movable contact spring 14 will separate with the fixed contact on being fixed on mounting circuit boards 12, referring to Fig. 9 and Figure 10.
At last, mechanism will be returned to the state of initial Fig. 3, realize the disconnection of mechanism, and at this moment circuit breaker is in off-state, and at this moment, if once more to coil 11 power supplies, mechanism is in standby condition again, but repetitive cycling is used.
Claims (10)
1. mechanical assistance electromagnetic releaser mechanism comprises: moving spring group, moving spring group control section, mechanism's operating state control section is characterized in that:
Described moving spring group comprises: fixed contact (4), moving contact (5), movable contact spring (14) are used to realize the conducting and the disconnection of circuit breaker; Described moving spring group control section comprises: reset key (1), pull bar (2), back-moving spring (3), support (6), hitch frame (7), machine leader (8) are used to control the action of moving spring group; Described mechanism operating state control section comprises: iron core (9), yoke (10), coil (11), mounting circuit boards (12), coil spring (13), machine leader (8) is stuck on the iron core (9), iron core (9) is controlled the operating state of entire mechanism by the service position of action drives machine leader (8).
2. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 1 is characterized in that, the direction of action of the direction of action of moving spring group and the iron core (9) of controlling organization operating state becomes an angle of 90 degrees.
3. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 2 is characterized in that an end of described machine leader (8) is the catch of with groove, and top is porose.
4. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 3 is characterized in that, described pull bar (2) one side the bottom be the inclined-plane, another side is a groove.
5. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 4 is characterized in that, the middle part of described hitch frame (7) and top are porose respectively, and hitch frame (7) can freely move up and down in the inside of support (6).
6. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 5 is characterized in that an end of described iron core (9) has a groove.
7. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 6 is characterized in that described machine leader (8) is inserted in the hitch frame (7).
8. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 7 is characterized in that, described moving contact (5) is fixed on the movable contact spring (14), and described fixed contact (4) is fixed on the mounting circuit boards (12).
9. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 8, it is characterized in that, described support (6) and hitch frame (7) adopt resistant to elevated temperatures engineering plastics to make, and described iron core (9) and yoke (10) adopt the electrical pure iron of high magnetic permeability, low remanent magnetism to make.
10. a kind of mechanical assistance electromagnetic releaser mechanism according to claim 9 is characterized in that, described movable contact spring (14) adopts beryllium-bronze or phosphor bronze elastomeric material to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200644023U CN201142307Y (en) | 2007-09-10 | 2007-09-10 | Mechanical auxiliary electromagnetic tripping device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007200644023U CN201142307Y (en) | 2007-09-10 | 2007-09-10 | Mechanical auxiliary electromagnetic tripping device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201142307Y true CN201142307Y (en) | 2008-10-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007200644023U Expired - Lifetime CN201142307Y (en) | 2007-09-10 | 2007-09-10 | Mechanical auxiliary electromagnetic tripping device |
Country Status (1)
| Country | Link |
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| CN (1) | CN201142307Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051200A (en) * | 2013-03-14 | 2014-09-17 | 伊顿公司 | Undervoltage tripping device for circuit breaker |
| CN105470064A (en) * | 2015-12-31 | 2016-04-06 | 德力西电气有限公司 | Tripping apparatus and circuit breaker apparatus |
| CN107359088A (en) * | 2017-08-18 | 2017-11-17 | 广东美的制冷设备有限公司 | leakage current breaker |
| CN112382548A (en) * | 2020-11-26 | 2021-02-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Electromagnetic tripping device for direct current circuit breaker |
-
2007
- 2007-09-10 CN CNU2007200644023U patent/CN201142307Y/en not_active Expired - Lifetime
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104051200A (en) * | 2013-03-14 | 2014-09-17 | 伊顿公司 | Undervoltage tripping device for circuit breaker |
| CN104051200B (en) * | 2013-03-14 | 2016-12-28 | 伊顿公司 | Undervoltage tripping device for chopper |
| CN105470064A (en) * | 2015-12-31 | 2016-04-06 | 德力西电气有限公司 | Tripping apparatus and circuit breaker apparatus |
| CN107359088A (en) * | 2017-08-18 | 2017-11-17 | 广东美的制冷设备有限公司 | leakage current breaker |
| CN112382548A (en) * | 2020-11-26 | 2021-02-19 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Electromagnetic tripping device for direct current circuit breaker |
| CN112382548B (en) * | 2020-11-26 | 2024-07-05 | 武汉船用电力推进装置研究所（中国船舶重工集团公司第七一二研究所） | Electromagnetic tripping device for direct current breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HU'NAN XIANGYI RAILROAD LOCOMOTIVE ELECTRICAL EQUI Free format text: FORMER NAME: HUNAN XIANGYI RAILWAY LOCOMOTIVE ELECTRICAL APPARATUS CO., LTD. |
|
| CP01 | Change in the name or title of a patent holder |
Address after: 412007 Tianyuan District of Zhuzhou city of Hunan Province Hunan on the No. 6 Patentee after: Hunan Xiangyi Railroad Locomotive Electrical Equipment Co., Ltd. Address before: 412007 Tianyuan District of Zhuzhou city of Hunan Province Hunan on the No. 6 Patentee before: Hunan Xiangyi Railway Locomotive Electrical Apparatus Co., Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20081029 |