CN202205672U - Undervoltage releasing device for breaker - Google Patents
Undervoltage releasing device for breaker Download PDFInfo
- Publication number
- CN202205672U CN202205672U CN2011203259255U CN201120325925U CN202205672U CN 202205672 U CN202205672 U CN 202205672U CN 2011203259255 U CN2011203259255 U CN 2011203259255U CN 201120325925 U CN201120325925 U CN 201120325925U CN 202205672 U CN202205672 U CN 202205672U
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- CN
- China
- Prior art keywords
- sensitive switch
- circuit breaker
- under
- releasing equipment
- draw bar
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model relates to an undervoltage releasing device for a breaker, belonging to the technical field of breaker, comprising a microswitch assembly, an electromagnetic mechanism, an energy storage mechanism and a base, characterized in that the microswitch assembly is electrically connected with the conductive loop of the electromagnetic mechanism in series, when the breaker is in a switching-on state the microswitch assembly is also in the switching-on state in the conductive loop of the undervoltage releasing device, and when the undervoltage releasing device performs an undervoltage operation to drive the breaker to be released and switched-off, the microswitch assembly is switched to a conductive loop for cutting-off the undervoltage releasing device. The undervoltage releasing device for a breaker enables the working current of the coil to be small, the reliability of the undervoltage releasing device to be increased, the service life of the undervoltage releasing device to be prolonged, the electric energy to be saved, and the power consumption to be omitted after releasing.
Description
Technical field
The utility model belongs to breaker technical field, is specifically related to the device for under-voltage releasing equipment that a kind of circuit breaker is used
Background technology
are no lack of the technology contents of the device for under-voltage releasing equipment that is seen in circuit breaker in disclosed Chinese patent document; Slightly giving an example like CN2182457Y (device for under-voltage releasing equipment), CN2901564Y (device for under-voltage releasing equipment that is used for breaker with double breaks and plastic case), CN201663129U (device for under-voltage releasing equipment of circuit breaker), CN201898102U (dual-interruption point breaker is used device for under-voltage releasing equipment) and CN201898110U (the single-break circuit breaker is used device for under-voltage releasing equipment), or the like.
are not limited to the logical fraud of device for under-voltage releasing equipment existence that the cited circuit breaker of above-mentioned document is used, and still there is the power consumption situation exactly in that after dropout.More particularly; The coil of device for under-voltage releasing equipment and circuit remain conducting after the device for under-voltage releasing equipment low-voltage drives the circuit breaker tripping tripping operation, after main circuit recovers normal voltage, before circuit breaker not being fastened again the lock operation; Coil is in "on" position always; Thereby cause waste of energy, and accelerating coil is aging, shortens the useful life of device for under-voltage releasing equipment
Summary of the invention
The task of
the utility model is to provide a kind of coil that after dropout, can make electromagnetic mechanism to be in off-state and uses the device for under-voltage releasing equipment that the circuit breaker that embodies saves energy and help the useful life of extension coil is used.
The task of
the utility model is accomplished like this; The device for under-voltage releasing equipment that a kind of circuit breaker is used; Comprise sensitive switch assembly, electromagnetic mechanism, stored energy mechanism and pedestal; It is characterized in that: described sensitive switch assembly is connected in series in electric connection mode in the galvanic circle of said electromagnetic mechanism, and when circuit breaker was in "on" position, said sensitive switch assembly was in on-state in the galvanic circle of device for under-voltage releasing equipment; And when the device for under-voltage releasing equipment low-voltage and drive circuit breaker tripping when tripping operation, said sensitive switch assembly is converted to the galvanic circle that cuts off device for under-voltage releasing equipment.
described stored energy mechanism of the utility model comprises snap close, amplifies draw bar, energy-stored spring and strike bar, and latch pivot is connected on the said pedestal, amplifies the draw bar pivotal connection on pedestal; One end of energy-stored spring is connected with the amplification draw bar, and the other end is connected with pedestal, hits bar and amplifies the draw bar pivotal connection; And it is corresponding with circuit breaker operation mechanism; Wherein: an end of said snap close has a latch hook, and the other end has a drive rod, on described amplification draw bar, is provided with a latch hook; To amplify draw bar with the cooperation of latch hook by latch hook is connected with snap close; Described amplification draw bar has an end, matches with described sensitive switch assembly in this end, and described drive rod is connected with said electromagnetic mechanism.
Be formed with the corresponding lug in position on the described amplification draw bar of
the utility model with the lever of circuit breaker operation mechanism.
The described strike bar of
the utility model offers a vertical slot in vertical direction, in vertical slot, is provided with one and is used for playing the guiding role and ensureing and hit the strike axle that bar moves up and down hitting bar, and this strikes axle and said pedestal are fixed.
The described sensitive switch assembly of
the utility model comprises base, cover plate, sensitive switch body, spring and push rod; Sensitive switch body, spring, push rod are arranged in the base base cavity; And place by cover plate lid and to implement to cover on the base to protect; Wherein, In the cavity volume of base, constitute sensitive switch body fitted shaft, cooperate axis hole and have sensitive switch on the sensitive switch body, this sensitive switch cooperates axis hole to match with sensitive switch body fitted shaft; Described spring and the push rod position in the base cavity of said base is positioned at the same side of said sensitive switch body jointly, and push rod leans out base and matches with the end of said amplification draw bar.
The edge of
described cover plate of the utility model constitutes the cover plate breach, and the accent position of the base cavity of described base constitutes the holding bead, and the holding bead matches with the cover plate breach.
described electromagnetic mechanism of the utility model comprises dynamic and static iron core, coil, yoke cover and positioning sleeve, and coil is arranged on the said pedestal, and dynamic and static iron core corresponds to each other and is arranged in the inner chamber of coil; Wherein, Moving iron core is connected with described drive rod, and the yoke cover is installed on the pedestal, and is positioned at the top of the inner chamber of said coil; Positioning sleeve is located in the yoke cover, and matches with described iron core.
The vertical sectional shape of
described moving iron core of the utility model is little and the inverted T font that the bottom is big in top, and constitutes confined planes at the intersection of top and bottom.
The advantage of the technical scheme that
the utility model provides is that the operating current of coil is less; After the device for under-voltage releasing equipment low-voltage drove the circuit breaker tripping tripping operation, the sensitive switch assembly can cut off the loop of coil rapidly simultaneously, even after major loop recovers normal voltage; Before circuit breaker not being fastened again the lock operation; Therefore coil is in off-position always, has avoided meaningless power loss and coil heating, can improve the reliability of device for under-voltage releasing equipment effectively and increases the service life; Simultaneously again can saves energy, embody the no power consumption after threading off.
Description of drawings
Fig. 1 is the utility model embodiment plane structure chart.
Fig. 2 is the utility model sensitive switch modular construction sketch map.
Fig. 3 is the utility model structure diagram.
Fig. 4 is the utility model hasp sketch map.
Embodiment
The technical spirit and the beneficial effect of the utility model can fully be understood in order to make the public in
; The applicant will combine accompanying drawing that the embodiment of the utility model is described in detail below; But the applicant is not the restriction to technical scheme to the description of embodiment, anyly makes form but not the variation of essence all should be regarded as the protection range of the utility model according to the utility model design.
see also Fig. 1, Fig. 2 and Fig. 4; The device for under-voltage releasing equipment that the circuit breaker that the utility model provides is used comprises electromagnetic mechanism 2, stored energy mechanism 3, pedestal 4 and sensitive switch assembly 1; Described sensitive switch assembly includes base 11, cover plate 12, sensitive switch body 13, spring 14 and push rod 15; Sensitive switch body 13, spring 14 and push rod 15 place the base cavity of base 11 respectively, and the sensitive switch of offering on the sensitive switch body 13 cooperates axis hole 131 to match with the interior sensitive switch body fitted shaft 111 that constitutes of the base cavity of base 11.Aforesaid spring 14 and push rod 15 place the same side of sensitive switch body 13, and spring 14 places push rod 15 tops, and push rod 15 leans out the end 323 of the amplification draw bar 32 in base 11 and the stored energy mechanism 3 and matches.Offer cover plate breach 121 in the edge of cover plate 12, and constitute the holding bead 112 that position and cover plate breach 121 are corresponding and match at the accent position of the base cavity of base 11, holding bead 112 fastens with cover plate breach 121.Described sensitive switch assembly 1 pivotal connection is on pedestal 4.
see also Fig. 1, Fig. 3 and Fig. 4; Described electromagnetic mechanism 2 comprises coil 23, moving iron core 21 and static iron core 22; Coil 23 is arranged on the pedestal 4, and dynamic and static iron core 21,22 places the inner chamber of coil 23 respectively, and moving iron core 21 is positioned at static iron core 22 tops; Moving iron core 21 is the cylinders that are made up of two parts about major diameter and the minor diameter; Its vertical sectional shape is the big inverted T font in bottom for top is little, is formed with confined planes 211 at upper and lower two-part intersection, offers one in moving end, iron core 21 upper end and is used for the snap close connecting hole 212 that is connected with the snap close 31 of stored energy mechanism 3.Interior top of chamber at said coil 23 also is provided with a yoke cover 24, and this yoke cover 24 is installed on the pedestal 4, and moving iron core 21 passes described yoke cover 24 and can overlap in 24 at yoke and moves up and down.In the yoke cover 24 positioning sleeve 25 is installed, this positioning sleeve 25 cooperates with moving iron core 21, can the reset position of moving iron core 21 be positioned.Need to prove: the setting of yoke cover 24, one side can be carried out spacing to moving iron core 21, can reduce the leakage field of electromagnetic system on the other hand, increases electromagnetic attraction, makes electromagnetic system compact more.
please continue to consult Fig. 1, Fig. 4 and combine Fig. 3; Described stored energy mechanism 3 comprises snap close 31, amplification draw bar 32, energy-stored spring 33 and hits bar 34; Described amplification draw bar 32 pivotal connections are on pedestal 4; End amplifying draw bar 32 has a latch hook 321, forms corresponding with the position of circuit breaker operation mechanism lever and can realize the lug 322 that cooperatively interacts between the two at the other end that amplifies draw bar 32, and the middle part pivotal connection of described snap close 31 is on pedestal 4; One end of snap close 31 has one and is used for realizing the hook lock 311 that hook is joined with the latch hook 321 that amplifies on the draw bar 32; Snap close 31 other ends are formed with a drive rod 312, and the snap close connecting hole 211 that this drive rod 312 inserts on the aforesaid moving iron core 21 makes between iron core 21 and the snap close 31 to be connected.One end of energy-stored spring 33 is connected with amplification draw bar 32, and the other end is connected with pedestal 4.
are hit bar 34 and are amplified draw bar 32 pivotal connections; Offer a vertical slot 341 in vertical direction at strike bar 34; In vertical slot 341, be provided with one and be used for playing the guiding role and guaranteeing to hit the strike axle 3411 that bar 34 can only move up and down hitting bar 34, this strikes spools 3411 is fixed on the described pedestal 4.
see also Fig. 1, Fig. 2, Fig. 3 and Fig. 4, the course of work of narration the utility model, and sensitive switch assembly 1 is serially connected in the galvanic circle of device for under-voltage releasing equipment electromagnetic mechanism 2; Under the normal condition; When circuit breaker was detained again, then lever in the circuit breaker operation mechanism (not shown, as to belong to known technology) contacted with lug 322 on the amplification draw bar 32; And drive amplification draw bar 32 is rotated counterclockwise; The latch hook 321 that amplifies on the draw bar 32 contacts with the latch hook 311 of snap close 31, and is pinned by snap close 31, and energy-stored spring 33 is accomplished energy storage.In this process, the end 323 of amplifying draw bar 32 promotes push rod 15, and then makes the contact conversion of sensitive switch body 13; Change into connection by disconnection, coil 23 gets electric adhesive, the electromagnetic attraction of generation and energy-stored spring dynamic balance; Snap close is pinned amplify draw bar 32, circuit breaker can close a floodgate.In device for under-voltage releasing equipment decompression when action,, the electromagnetic attraction that coil produces reduces, can not with energy-stored spring 33 equilibrant force balances; Cause the snap close release, amplify draw bar 32 and under the effect of energy-stored spring 33, move, drive and hit bar 34 and then the circuit breaker draw bar is threaded off; The end 323 of amplifying draw bar simultaneously breaks away from push rod 15, and push rod 15 outwards ejects under the effect of spring 14, and then makes the contact conversion of sensitive switch body 13; Change into disconnection by connection, cut off the galvanic circle of under-voltage coil, even after major loop recovers normal voltage; Before circuit breaker not being fastened again the lock operation, under-voltage coil is in off-position all the time.Thereby reach the effect of protection device for under-voltage releasing equipment and saves energy
Claims (8)
1. the device for under-voltage releasing equipment used of
a kind of circuit breaker; Comprise sensitive switch assembly (1), electromagnetic mechanism (2), stored energy mechanism (3) and pedestal (4); It is characterized in that: described sensitive switch assembly (1) is connected in series in the galvanic circle of said electromagnetic mechanism (2) with electric connection mode; When circuit breaker was in "on" position, said sensitive switch assembly (1) was in on-state in the galvanic circle of device for under-voltage releasing equipment; And when the device for under-voltage releasing equipment low-voltage and drive circuit breaker tripping when tripping operation, said sensitive switch assembly (1) is converted to the galvanic circle that cuts off device for under-voltage releasing equipment.
2. the device for under-voltage releasing equipment used of
circuit breaker according to claim 1; It is characterized in that described stored energy mechanism (3) comprises snap close (31), amplification draw bar (32), energy-stored spring (33) and hits bar (34); Snap close (31) pivotal connection is amplified draw bar (32) pivotal connection on pedestal (4) on said pedestal (4), an end of energy-stored spring (33) is connected with amplification draw bar (32); And the other end is connected with pedestal (4); Hit bar (34) and amplify draw bar (32) pivotal connection, and corresponding with circuit breaker operation mechanism, wherein: an end of said snap close (31) has a latch hook (311); And the other end has a drive rod (312); On described amplification draw bar (32), be provided with a latch hook (321), will amplify draw bar (32) by latch hook (311) with the cooperation of latch hook (321) and be connected with snap close (31), described amplification draw bar (32) has an end (323); Match with described sensitive switch assembly (1) in this end (321), described drive rod (312) is connected with said electromagnetic mechanism (2).
3. the device for under-voltage releasing equipment used of
circuit breaker according to claim 2 is characterized in that being formed with on the described amplification draw bar (32) the corresponding lug in position (322) with the lever of circuit breaker operation mechanism.
4. the device for under-voltage releasing equipment used of
circuit breaker according to claim 2; It is characterized in that described strike bar (34) offers a vertical slot (341) in vertical direction; In vertical slot (341), be provided with one and be used for playing the guiding role and ensureing and hit the strike axle (3411) that bar (34) moves up and down hitting bar (34), it is fixing with said pedestal (4) that this hits axle (3411).
5. the device for under-voltage releasing equipment used of
circuit breaker according to claim 2; It is characterized in that described sensitive switch assembly (1) comprises base (11), cover plate (12), sensitive switch body (13), spring (14) and push rod (15); Sensitive switch body (13), spring (14), push rod (15) are arranged in base (11) base cavity; And placing base (11) to go up by cover plate (12) lid implements to cover to protect; Wherein, In the cavity volume of base (11), constitute sensitive switch body fitted shaft (111); Cooperate axis hole (131) and have sensitive switch on the sensitive switch body (13); This sensitive switch cooperates axis hole (131) to match with sensitive switch body fitted shaft (111), and described spring (14) and the position of push rod (15) in the base cavity of said base (11) are positioned at the same side of said sensitive switch body (13) jointly, and push rod (15) leans out base (11) and matches with the end (323) of said amplification draw bar (32).
6. the device for under-voltage releasing equipment used of
circuit breaker according to claim 5; The edge that it is characterized in that described cover plate (12) constitutes cover plate breach (121); And the accent position of the base cavity of described base (11) constitutes holding bead (112), and holding bead (112) matches with cover plate breach (121).
7. the device for under-voltage releasing equipment used of
circuit breaker according to claim 2; It is characterized in that described electromagnetic mechanism (2) comprises dynamic and static iron core (21,22), coil (23), yoke cover (24) and positioning sleeve (25); Coil (23) is arranged on the said pedestal (4); Dynamic and static iron core (21,22) corresponds to each other and is arranged in the inner chamber of coil (23), and wherein, moving iron core (21) is connected with described drive rod (312); Yoke cover (24) is installed on the pedestal (4); And be positioned at the top of the inner chamber of said coil (23), positioning sleeve (25) is located in the yoke cover (24), and matches with described iron core (21).
8.
The device for under-voltage releasing equipment that circuit breaker according to claim 7 is used, the vertical sectional shape that it is characterized in that described moving iron core (21) are little and the inverted T font that the bottom is big in top, and constitute confined planes (211) at the intersection of top and bottom
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203259255U CN202205672U (en) | 2011-09-01 | 2011-09-01 | Undervoltage releasing device for breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203259255U CN202205672U (en) | 2011-09-01 | 2011-09-01 | Undervoltage releasing device for breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202205672U true CN202205672U (en) | 2012-04-25 |
Family
ID=45969778
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203259255U Expired - Lifetime CN202205672U (en) | 2011-09-01 | 2011-09-01 | Undervoltage releasing device for breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202205672U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103594274A (en) * | 2013-10-30 | 2014-02-19 | 葛剑优 | Single-pole double-throw change-over switch |
| CN103871791A (en) * | 2012-12-13 | 2014-06-18 | 苏州景泰电气有限公司 | Shunt release for circuit breakers |
| CN104392866A (en) * | 2014-09-30 | 2015-03-04 | 佳一电气有限公司 | Energy-saving mechanism cooperating with electromagnetic switching-on and switching-off mechanism for use |
-
2011
- 2011-09-01 CN CN2011203259255U patent/CN202205672U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103871791A (en) * | 2012-12-13 | 2014-06-18 | 苏州景泰电气有限公司 | Shunt release for circuit breakers |
| CN103594274A (en) * | 2013-10-30 | 2014-02-19 | 葛剑优 | Single-pole double-throw change-over switch |
| CN103594274B (en) * | 2013-10-30 | 2015-12-09 | 葛剑优 | A kind of single-pole double-throw change-over switch |
| CN104392866A (en) * | 2014-09-30 | 2015-03-04 | 佳一电气有限公司 | Energy-saving mechanism cooperating with electromagnetic switching-on and switching-off mechanism for use |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120425 |
|
| CX01 | Expiry of patent term |