CN201616358U - Energy storage quick-acting mechanism of miniature circuit breaker - Google Patents
Energy storage quick-acting mechanism of miniature circuit breaker Download PDFInfo
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- CN201616358U CN201616358U CN2010200015080U CN201020001508U CN201616358U CN 201616358 U CN201616358 U CN 201616358U CN 2010200015080 U CN2010200015080 U CN 2010200015080U CN 201020001508 U CN201020001508 U CN 201020001508U CN 201616358 U CN201616358 U CN 201616358U
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- circuit breaker
- barb
- groove
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Abstract
The utility model discloses an energy storage quick-acting mechanism of a miniature circuit breaker. The energy storage quick-acting mechanism comprises an energy storage part and a quick acting part, wherein the energy storage part comprises a driving piece and a driven piece that are connected with each other by a rivet; the quick acting part comprises a stopper; the driving piece comprises an operating arm, a long neck, an enclosure and an arc boss; the driven piece consists of an energy storage spring and a rotating shaft; a left barb and a round neck are arranged on the rotating shaft; one end of the energy storage spring is clamped on the long neck, and the other end thereof is clamped on the round neck; the stopper consists of a limit returning spring and a limit lever; a right barb and a trapezoid boss are arranged on the limit lever; one end of the limit returning spring is clamped on a neck of a base of the circuit breaker, and the other end thereof is connected with the limit lever; the arc boss can be contacted with the trapezoid boss; and the surface of the left barb can be contacted with the surface of the right barb. The energy storage quick-acting mechanism improves the rated short-circuit capability of the circuit breaker and has the advantages of simple structure, small size, light weight, convenient installation and safe and reliable use.
Description
Technical field
The utility model relates to the low-voltage electrical apparatus field, particularly a kind of energy storage quick-acting mechanism of miniature circuit breaker.
Background technology
Miniature circuit breaker is applicable to and exchanges 50/60Hz rated voltage 230/400V, and rated current is to the overload of 63A circuit and the usefulness of short-circuit protection, also can be under normal circumstances as the usefulness of the not frequent operation conversion of circuit.Miniature circuit breaker is mainly used in various places such as industry, commerce, high level and residential houses.
At present domestic the common specified short-circuit capacity of miniature circuit breaker is the highest to have only 10000A, its short-circuit capacity is low can be when circuit be short-circuited, make electric equipment overheated or be subjected to electrodynamic action and damaged easily, the interior voltage of circuit is reduced greatly, and then destroyed the operate as normal of other power consumption equipment, and the frequency that circuit breaker damages because of short circuit can improve.
Summary of the invention
The utility model is in order to solve the deficiencies in the prior art, and the energy storage quick-acting mechanism of the miniature circuit breaker of the specified short-circuit capacity that improves circuit breaker under a kind of prerequisite that does not change the circuit breaker outward appearance is provided.
The technical scheme that its technical problem that solves the utility model adopts is: a kind of energy storage quick-acting mechanism of miniature circuit breaker, comprise energy storage section and quick-action part, and described energy storage section comprises driving link and driven member, described driving link links to each other by rivet with driven member; Described quick-action partly comprises locating part; Described driving link comprises motion arm, be arranged on long draw-in groove, the case that links to each other with motion arm on the motion arm, be arranged on the outer circular arc boss of case; Described driven member is made up of energy-stored spring and rotating shaft, and described rotating shaft is provided with left barb and circle draw-in groove, and described energy-stored spring one end is stuck on the described long draw-in groove, on the round draw-in groove that the other end is stuck in; Described locating part is made up of spacing back-moving spring and limit lever, described limit lever is provided with right barb and trapezoid boss, described spacing back-moving spring one end is stuck on the draw-in groove of circuit breaker pedestal, the other end links to each other with limit lever, described circular arc boss can contact with described trapezoid boss, and the hook face of described left barb can contact with the hook face of described right barb.
The elastic potential energy of the idle stroke when compared with prior art, the utility model is owing to energy-stored spring torsion maximum has converted the rotational kinetic energy of rotating shaft to.When the dynamic/static contact of circuit breaker began to contact, energy-stored spring was near first torsion state, and the rotational kinetic energy of whole rotating shaft at this moment is maximum and with its release, collaborative energy-stored spring close circuit breaker.So promptly reduce the time of breaker closing, reduced the collision loss of dynamic/static contact again.The utility model is converted to elastic potential energy with kinetic energy and stores, and moment converts kinetic energy to again, under the prerequisite that does not change the circuit breaker outward appearance the specified short-circuit capacity of circuit breaker is brought up to 15000A, significantly improves its machinery and electrical endurance simultaneously.And has an advantage simple in structure, that volume is little, in light weight, easy for installation, safe and reliable.
Description of drawings
Fig. 1 is installed in original view in the circuit breaker for the utility model energy storage quick-acting mechanism;
Fig. 2 is installed in energy storage initial state schematic diagram in the circuit breaker for the utility model energy storage quick-acting mechanism;
Fig. 3 is installed in quick-action initial state schematic diagram in the circuit breaker for the utility model energy storage quick-acting mechanism;
Fig. 4 is the structural representation of energy storage section;
Fig. 5 is the rotating shaft schematic diagram;
Fig. 6 is that the A-A of Fig. 5 is to view;
Fig. 7 is the driving link schematic diagram;
Fig. 8 is that the A-A of Fig. 7 is to view;
Fig. 9 is the assembling schematic diagram of energy storage section.
Among the figure: 1. driving link, 101. motion arms, 102. cases, 103. the circular arc boss, 104. long draw-in groove, 2. rivets, 3. energy-stored spring, 4. rotating shaft, 401. left barbs, 402. the circle draw-in groove, 5. spacing back-moving spring, 6. limit lever, 601. right barb, 602. trapezoid boss, 7. pedestals, 701. draw-in grooves, 702. cylinder, 703..
Embodiment
The utility model is described in further detail below in conjunction with accompanying drawing.
Referring to Fig. 1, a kind of energy storage quick-acting mechanism of miniature circuit breaker comprises energy storage section and quick-action part, and described energy storage section comprises driving link 1 and driven member, and described quick-action partly comprises locating part; Fig. 1 is installed in reset condition in the circuit breaker for the utility model.Energy storage section is installed on the axle 703 of circuit breaker pedestal 7, and driven member is made up of energy-stored spring 3 and rotating shaft 4, and referring to Fig. 4 and Fig. 9, energy-stored spring 3 in the driven member and rotating shaft 4 are connected in the case 102 of driving link 1 by rivet 2.One end of energy-stored spring 3 is stuck on the long draw-in groove 104 on the driving link 1, and the other end is stuck on the round draw-in groove 402 in the rotating shaft 4; Locating part is made up of spacing back-moving spring 5 and limit lever 6, limit lever 6 in the locating part is connected on the cylinder 702 on the pedestal 7, spacing back-moving spring 5 one ends are stuck on the draw-in groove 701 of pedestal 7, the other end and limit lever 6 connect together, limit lever 6 is provided with right barb 601 and trapezoid boss 602, and this moment, the left barb 401 in the rotating shaft 4 did not all contact with trapezoid boss 602 on the limit lever 6 with right barb 601 and the circular arc boss 103 on the driving link 1 on the limit lever 6.
Referring to Fig. 2, driving link 1 turns round under the effect of external force, motion arm 101 on it will drive energy-stored spring 3 and rotating shaft 4 is rotated around axle 703 together, when forwarding certain angle to, left side barb 401 contacts with right barb 601 hook faces, and rotating shaft 4 this moment is limited to move, and driving link 1 is rotated further, long draw-in groove 104 on it will drive energy-stored spring 3 and be rotated further, and make spring reverse the beginning energy storage.
Referring to Fig. 3, circular arc boss 103 on the driving link 1 begins to contact with trapezoid boss 602 on the limit lever 6, when driving link 1 continues motion, circular arc boss 103 heads on trapezoid boss 602, limit lever 6 is moved downward, and left barb 401 disengages with right barb 601, and energy-stored spring 3 drives rotating shaft 4 motions rapidly simultaneously, make circuit breaker moment closure, thereby reach the quick-action effect.
Referring to Fig. 5 and Fig. 6, rotating shaft 4 is provided with left barb 401 and circle draw-in groove 402.
Referring to Fig. 7 and Fig. 8, driving link 1 comprises motion arm 101, be arranged on long draw-in groove 104, the case 102 that links to each other with motion arm 101 on the motion arm 101, be arranged on the outer circular arc boss 103 of case 102.
The utility model drives driven member by driving link and is synchronized with the movement, and when running to certain angle, left barb contacts with right barb hook face, rotating shaft this moment is limited to move, driving link is rotated further, and the long draw-in groove on the driving link will drive energy-stored spring and be rotated further, and energy-stored spring is reversed and energy storage; Circular arc boss on the driving link begins to contact with the trapezoid boss on the limit lever, when driving link continues motion, the circular arc boss heads on trapezoid boss, locating part is moved downward, left and right sides barb disengages, energy-stored spring drives the rotating shaft campaign rapidly simultaneously, makes circuit breaker moment closure, thereby reaches the quick-action effect.
Because when discharging, with the transient energy maximum, so this device can satisfy the low pressure isolating switch by the spring that tightened, the requirement of miniature circuit breaker etc. can provide maximum primary power, the fastest responsiveness.
Above-described embodiment, the utility model embodiment a kind of more preferably just, the common variation that those skilled in the art carries out in the technical solutions of the utility model scope and replacing all should be included in the protection range of the present utility model.
Claims (1)
1. the energy storage quick-acting mechanism of a miniature circuit breaker is characterized in that, comprises energy storage section and quick-action part, and described energy storage section comprises driving link and driven member, and described driving link links to each other by rivet with driven member; Described quick-action partly comprises locating part; Described driving link comprises motion arm, be arranged on long draw-in groove, the case that links to each other with motion arm on the motion arm, be arranged on the outer circular arc boss of case; Described driven member is made up of energy-stored spring and rotating shaft, and described rotating shaft is provided with left barb and circle draw-in groove, and described energy-stored spring one end is stuck on the described long draw-in groove, on the round draw-in groove that the other end is stuck in; Described locating part is made up of spacing back-moving spring and limit lever, described limit lever is provided with right barb and trapezoid boss, described spacing back-moving spring one end is stuck on the draw-in groove of circuit breaker pedestal, the other end links to each other with limit lever, described circular arc boss can contact with described trapezoid boss, and the hook face of described left barb can contact with the hook face of described right barb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200015080U CN201616358U (en) | 2010-01-07 | 2010-01-07 | Energy storage quick-acting mechanism of miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200015080U CN201616358U (en) | 2010-01-07 | 2010-01-07 | Energy storage quick-acting mechanism of miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201616358U true CN201616358U (en) | 2010-10-27 |
Family
ID=43002722
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200015080U Expired - Fee Related CN201616358U (en) | 2010-01-07 | 2010-01-07 | Energy storage quick-acting mechanism of miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201616358U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779664A (en) * | 2012-07-25 | 2012-11-14 | 天津市百利电气有限公司 | Isolating automatic transfer switch capable of preventing energy storage spring from shifting |
-
2010
- 2010-01-07 CN CN2010200015080U patent/CN201616358U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102779664A (en) * | 2012-07-25 | 2012-11-14 | 天津市百利电气有限公司 | Isolating automatic transfer switch capable of preventing energy storage spring from shifting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Zhejiang Zhongguan Electric Co.,Ltd. Assignor: Leqing Zhongguan Electric Co., Ltd. Contract record no.: 2011330001336 Denomination of utility model: Energy storage quick-acting mechanism of miniature circuit breaker Granted publication date: 20101027 License type: Exclusive License Record date: 20111109 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101027 Termination date: 20140107 |