CN2613041Y - Anti-impact under voltage release for circuit breaker - Google Patents
Anti-impact under voltage release for circuit breaker Download PDFInfo
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- CN2613041Y CN2613041Y CN 03229695 CN03229695U CN2613041Y CN 2613041 Y CN2613041 Y CN 2613041Y CN 03229695 CN03229695 CN 03229695 CN 03229695 U CN03229695 U CN 03229695U CN 2613041 Y CN2613041 Y CN 2613041Y
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- armature
- strong impact
- voltage
- release
- voltage release
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Abstract
The utility model relates to a breaker used anti strong impact deficient voltage trip unit. The utility model is added by an anti strong impact mechanism on the basis of the trip unit in prior art, the mechanism comprises a plurality of particle balance block, a guide plate and a sliding connecting element which can prevent the trip unit from generating false action when receiving strong impact. The balance block has the function of balancing torque, the guide plate ensures the balance block sliding in parallel with a keeper, and the sliding connecting element has a sliding connection function. The utility model is a deficient voltage trip unit provided for a ship used plastic shell breaker, which perfects the protection function.
Description
Technical field
The utility model relates to a kind of resisting strong impact under-voltage release, relates to the resisting strong impact under-voltage release of a kind of warship with breaker of plastic casing or rather.
Background technology
Low-voltage circuit breaker is mainly born overload, the under voltage of distribution line and equipment, the usefulness of short-circuit protection.Under-voltage release is exactly above-mentioned circuit breaker carries out under voltage protection to low-voltage circuit and power consumption equipment a mechanism.Under-voltage release needs long-term energising continuously, and its operating characteristics should reach: when supply voltage be lower than rated operational voltage 35% the time, under-voltage release can not adhesive, has prevented the circuit breaker adhesive; When power supply be equal to or greater than rated operational voltage 85% the time should be able to adhesive, guarantee the reliable adhesive of circuit breaker; In supply voltage dropped to 70% and 35% scope of rated operational voltage, under-voltage release should disconnect; In addition, under-voltage release also must have high voltage withstanding ability, still holds normal tripping characteristic behind 110% o'clock of tolerance rated supply voltage.Just require under-voltage release can reliably discharge when low-voltage, working properly when high voltage, coil does not burn out.
Existing under-voltage release as shown in Figure 1, its operating principle is as follows:
When coil 6 applies 85% and during above rated voltage, armature 2 since electromagnetic attraction greater than spring 5 reaction forces by adhesive.The top 2a of armature 2 separates with trip shaft 7, makes trip shaft 7 be in the snap close position, and circuit breaker is promptly refastenable, the more feasible closing operation of button back circuit breaker.Closed circuit breaker is in rated voltage (70%～35%) scope during a certain voltage when coil 3 applies voltage, because the suction of armature 2 and trip shaft 7 counter-force sums are less than the counter-force of spring 5, causing that trip shaft 7 is rotated trips, circuit breaker is disconnected, utilize circuit breaker square shaft 11 by the shift length that rotational angle produced that is closed to disconnection.By magnetic air gap adjusting device 10, make armature 2 be in a certain air gap position.In this air gap position, the top 2a of armature 2 heads on trip shaft 7, makes it to be in unbuckled state, and circuit breaker can not be closed.When applying 85% rated voltage, the electromagnetic attraction of its generation should can make armature rest on the attracted position reliably greater than spring 5 counter-forces.This moment, the top 2a of armature 2 separated with trip shaft 7, made trip shaft be in the snap close position.The feasible closed procedure of circuit breaker this moment.When applying 35% rated voltage, the electromagnetic attraction of its generation is less than the counter-force of spring 5, and the top 2a of armature 2 heads on trip shaft 7, makes trip shaft 7 be in the position of triping, and this moment, circuit breaker can not be carried out button again.Circuit breaker can't close a floodgate.
But this device for under-voltage releasing equipment does not possess the resisting strong impact performance, when testing on C-200 type shock machine, because its misoperation makes closed warship disconnect with breaker of plastic casing, causes unnecessary power failure.As the warship breaker of plastic casing, this is unallowed.
By test and analysis, its reason is: because armature 2 fast moving under thump, its top 2a bump trip shaft 7 makes it to trip and causes the circuit breaker wrong diagnosis to open; Because support is a cantilever design, under impact conditions, its side direction is easy to generate rocks, and causes armature might clash into trip shaft 7, also can cause the circuit breaker misoperation again.Therefore, existing under-voltage release can not satisfy the use of warship with circuit breaker.
Summary of the invention
The purpose of this utility model provides a kind of existing circuit breaker under-voltage release basic function again under the thump situation, and the release that warship is held with the breaker of plastic casing wrong diagnosis not is to improve the reliability of circuit breaker power supply.
The technical solution of the utility model is such: on the basis of prior art release, send out and to put a shock resistance structure, promptly increase several groups of parts: balance weight 13, guide rail 12, be slidingly connected sub-assembly 15, guide plate 18, guide plate fulcrum support 16, guide plate supporting and connect sub-assembly 19.
The above-mentioned effect of several groups of parts in the shock resistance structure is: balance weight 13 plays the trimming moment effect, guide rail 17 guarantees that balance weight is parallel to armature and slides, be slidingly connected sub-assembly 15 and work the effect of being slidingly connected, guide plate 18 is that armature and balance weight are formed associated member, the guide plate fulcrum connects sub-assembly 19, makes guide plate and guide plate fulcrum support become movable combination.
Effect of the present utility model: the utility model provides a kind of under-voltage release for Chinese warship with circuit breaker, and perfect warship is with the defencive function of breaker of plastic casing, and it is supporting to have satisfied novel naval vessels power equipment, has reached international most advanced level.
Description of drawings
Fig. 1 is a prior art under-voltage release operating principle schematic diagram;
Fig. 2 is the front view of prior art under-voltage release structure;
Fig. 3 is the vertical view of Fig. 2;
Fig. 4 is the improvement structural representation of Fig. 2;
Fig. 5 is the improvement structural representation of Fig. 3;
Fig. 6 is the upward view of Fig. 4.
Embodiment
With reference to Fig. 1～Fig. 6, wherein Fig. 1～Fig. 3 is the action and the structural representation of the release of prior art, improves being designed to Fig. 4～Fig. 6 on this basis.
The utility model comprises armature component, electromagnetic assembly, trip assembley therefor, and the armature 2 that post shapes is arranged in the armature component is the top 2a of a shape on its top, and it is outer to be armature movable stand 2b, and an axle 3 perpendicular to yoke 4 is arranged; The coil 6 that is positioned at yoke 4 frameworks is arranged in the electromagnetic assembly; There are coil of being positioned at 6 and yoke 4 upper and lowers that one tension spring 5 is respectively arranged in the trip assembley therefor, are positioned at the trip shaft 7 of top 2a one side, trip shaft 7 lower end reaction springs 9; It is characterized in that: also set up a shock resistance construction package, this assembly has comprised the balance weight 13 of trimming moment effect, guarantees the guide rail 12 that slides, the guide plate 18 that armature 2 and balance weight 13 are associated together.
An initial air gap adjuster 10 is arranged on armature 2 in addition, and this adjuster is a screw; Also have one to support connector 19 in the middle of the guide plate 18; Armature 2 movable stand 2b are other to be provided with a strengthening frame, makes armature 2 top 2a bump trip shaft 7 misoperations because support 1 rocks when preventing to impact.Described balance weight 13 its quality are pressed the quality of armature 2, top 2a, armature movable stand 2b and long-pending with y, divided by the x decision, get x=y.
The following describes the operation principle of this resisting strong impact under-voltage release:
When coil 6 applies 85% and during above rated voltage, by adhesive, the top 2a of armature 2 separates with trip shaft 7 greater than spring 5 reaction forces owing to electromagnetic attraction for armature 2, makes trip shaft 7 be in the snap close position, and circuit breaker can be carried out button again, closed procedure.
Because armature 2, connector 14, guide plate 18 and be slidingly connected screw cap assembly 15,19 be with guide plate fulcrum support 16 that fulcrum drives balance weight 13 mobile in balance weight guide rail bracket 12, owing to considered cooperation in the driving parts design, its friction is very little, can ignore.Do not influence the original performance of device for under-voltage releasing equipment.
Applying voltage is a certain voltage or to apply voltage be 35% and when following in rated voltage (70%～35%) scope, and its performance is all consistent with original technology.
Under C-200 type shock machine impact condition because the impact acceleration effect, make armature 2 obtain the impulsive force of a bump trip shaft 7, but meanwhile balance weight 13 also obtain one with the identical impulsive force of armature 2 impulsive force directions.
Because these two impulsive forces are by the fulcrum on guide plate 18 and the guide plate fulcrum support 16, form a pair of balance couple, because its quality and impact acceleration equate,, thereby prevented device for under-voltage releasing equipment armature 2 issuable mobile bump when impacting so balance is offset mutually.
Above technical scheme is a preferred embodiment.
Claims (6)
1. a circuit breaker is owed electric release with resisting strong impact, comprises armature component, electromagnetic assembly, trip assembley therefor;
Described armature component comprises the top (2a) of axle shape of armature (2), the armature top of column, armature (2) outside armature movable stand (2b) arranged, and vertical axle (3) is arranged;
Described electromagnetic assembly comprises the coil of wire (6) that is positioned at yoke (4) framework;
Described trip assembley therefor comprises and is positioned at the coil of wire (6) and yoke (4) upper and lower respectively has tension spring (5), is positioned at the trip shaft (7) of top (2a) side, trip shaft (7) lower end reaction spring (9);
It is characterized in that: also set up a shock resistance mechanism assembly, the guide plate (18) that this assembly has comprised the balance weight (13) of trimming moment effect, the guide rail of guaranteeing to slide (12), armature (2) and balance weight (13) are associated together.
2. resisting strong impact under-voltage release as claimed in claim 1 is characterized in that:
An initial air gap adjuster (10) is arranged on the described armature (2).
3. resisting strong impact under-voltage release as claimed in claim 1 or 2 is characterized in that:
Described initial air gap adjuster (10) is a screw.
4. resisting strong impact under-voltage release as claimed in claim 1 is characterized in that:
Also have one to support connector (19) in the middle of the described guide plate (18).
5. resisting strong impact under-voltage release as claimed in claim 1 is characterized in that:
Described armature (2) movable stand (2b) is other to be provided with a strengthening frame, makes armature (2) top (2a) bump release axle (7) misoperation because support (1) rocks when preventing to impact.
6. resisting strong impact under-voltage release as claimed in claim 1 is characterized in that:
Its quality of described balance weight (13) is pressed the quality of armature (2), top (2a), armature movable stand (2b) and long-pending with y, divided by the x decision, gets x=y.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229695 CN2613041Y (en) | 2003-03-24 | 2003-03-24 | Anti-impact under voltage release for circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03229695 CN2613041Y (en) | 2003-03-24 | 2003-03-24 | Anti-impact under voltage release for circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2613041Y true CN2613041Y (en) | 2004-04-21 |
Family
ID=34165010
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03229695 Expired - Fee Related CN2613041Y (en) | 2003-03-24 | 2003-03-24 | Anti-impact under voltage release for circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2613041Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456412C (en) * | 2004-12-09 | 2009-01-28 | 上海电器科学研究所（集团）有限公司 | Flame type circuit breaker impact preventing mechanism |
-
2003
- 2003-03-24 CN CN 03229695 patent/CN2613041Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100456412C (en) * | 2004-12-09 | 2009-01-28 | 上海电器科学研究所（集团）有限公司 | Flame type circuit breaker impact preventing mechanism |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20040421 Termination date: 20110324 |