CN101685732B - Contact stop component of low-voltage circuit breaker - Google Patents
Contact stop component of low-voltage circuit breaker Download PDFInfo
- Publication number
- CN101685732B CN101685732B CN2009100266837A CN200910026683A CN101685732B CN 101685732 B CN101685732 B CN 101685732B CN 2009100266837 A CN2009100266837 A CN 2009100266837A CN 200910026683 A CN200910026683 A CN 200910026683A CN 101685732 B CN101685732 B CN 101685732B
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- contact
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- connecting rod
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- 230000000694 effects Effects 0.000 abstract description 8
- 230000005520 electrodynamics Effects 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000010891 electric arc Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
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Abstract
The invention discloses a contact stop component of a low-voltage circuit breaker. A contact penetrates symmetrically along the radial direction of a rotor and rotates in an empty groove of the rotor; a pin shaft is a rotating central shaft of the contact and the rotor; a fixing rod and a connecting rod which are arranged symmetrically by taking the pin shaft as an axis pass through the rotor; two ends of springs positioned at two sides of the rotor and arranged symmetrically are fixed on the connecting rod; the fixing rod is connected to one end of a connecting plate positioned at two sides of the rotor and arranged symmetrically, and the other end of the connecting plate is sleeved on the connecting rod; one end of connecting plate positioned at the two sides of the contact and arranged symmetrically is sleeved on the connecting rod, while the other end of the connecting plate is sleeved on the connecting rod; the connecting rod passes through the contact and is arranged symmetrically by taking the pin shaft as an axis; when the springs are positioned at the stretched longest positions, the centers of the two connected ends of the connecting plate and the connecting rod and the centre of the pin shaft are arranged at a dead point where the three points are collinear; the direction of spring force is changed such that the contact moves towards the tripping direction to be reliably locked; and when a small current failure occurs, the stopping effect of the contact is obvious particularly.
Description
Technical field
The present invention relates to the contact component of low-voltage circuit breaker, by the operating mechanism driven rotary of circuit breaker.
Background technology
At present, mould the case low-voltage circuit breaker moving contact part and form, drive the rotor rotation by the bar on the operating mechanism by rotor, contact and gripping mechanism etc., by the rotation of rotor realize moving contact deciliter.Wherein, gripping mechanism is to utilize contact or epitrochanterian edge to scold when reaching stuck position at contact, and the resistance of the contact-making surface between rotor or contact and accessory blocks contact.The defective of this device is: after repeatedly dividing closing operation, gripping mechanism can be because the wearing and tearing of contact-making surface make moving contact scold at electrodynamic repulsion force reliably not to be blocked after holding and is fallen after rise, causes the circuit breaker can not reliable deciliter and cause restriking of electric arc in the arc control device.
Summary of the invention
The objective of the invention is provides a kind of contact stop component of low-voltage circuit breaker for overcoming above-mentioned the deficiencies in the prior art, need not to use above-mentioned contact-making surface to realize blocking, and has avoided repeatedly dividing the problem that can not reliably block behind the closing operation.
The technical solution used in the present invention is: contact and rotor are axisymmetric shape, contact runs through and rotates in the dead slot of rotor along the radial symmetric of rotor, bearing pin is the rotary middle spindle of contact and rotor, the fixed lever and the connecting rod that with the bearing pin are the axial symmetry setting pass rotor, the two ends that are positioned at rotor both sides and symmetrically arranged spring are fixed on the connecting rod, the fixed lever connection is positioned at rotor both sides and symmetrically arranged connecting plate one end, and the connecting plate other end is enclosed within on the connecting rod; Be positioned at the contact both sides and symmetrically arranged connecting plate one end is enclosed within on the connecting rod, the other end is enclosed within on the connecting rod, and connecting rod passes contact and is the axial symmetry setting with the bearing pin; Be positioned at the longest position of stretching at spring, three point on a straight line is arranged at two the link centers of connecting plate and connecting rod and the center of bearing pin.
The invention has the beneficial effects as follows:
1, under the effect of contact at electrodynamic repulsion force, drive spring and be stretched to the longest position, be that spring is through this dead-centre position of three point on a straight line, the direction of spring force just changes, the automatic resilience of spring has just changed the rotation direction of contact, and contact is moved to the separating brake direction, contact can't fall after rise under the effect of spring force, thereby blocks contact reliably.Be compared with the prior art, the present invention does not use the structure of contact-making surface chucking between rotor or contact and accessory, the reliable and long service life of chucking.
When 2, in a single day contact was subjected to electrodynamic repulsion force and scolds out a smaller angle through the dead-centre position, spring can block contact rapidly, prevents the falling of contact, and the present invention is when low current fault, and the locking contacts effect is especially obvious.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is the front view of structure of the present invention;
Fig. 2 is an A-A position cutaway view among Fig. 1;
Fig. 3 is a B-B position cutaway view among Fig. 1;
Fig. 4 is a C-C position cutaway view among Fig. 3;
Fig. 5 is a D-D position cutaway view among Fig. 4.
Among the figure: 1. rotor; 2. contact; 3. connecting plate; 4. connecting plate; 5. connecting rod; 6. connecting rod; 7. fixed lever; 8. spring; 9. groove; 10. through hole; 12. bearing pin.
Embodiment
Shown in Fig. 1-5, contact 2 is an axisymmetric shape with rotor 1, and in the axial middle part of rotor 1, contact 2 runs through towards the radial symmetric of rotor 1.Contact 2 passes with bearing pin 12 with the center of rotor 1, and bearing pin 12 is the common centre of rotation axle of contact 2 and rotor 1.Contact 2 is that rotate in the dead slot of rotor 1 in the axle center with this bearing pin 12, and contact 2 can do freely to turn round action between make position and open position.
With bearing pin 12 is that axial symmetry is provided with a pair of fixed lever 7 and a pair of connecting rod 5, and shown in Fig. 2-3, fixed lever 7 and connecting rod 5 pass rotor 1.In the axial both sides of rotor 1 two groups of through holes about bearing pin 12 symmetries are set, wherein one group of through hole 10 matches with the circuit breaker operation mechanism bar, and another group through hole is passed by a pair of fixed lever 7.The two ends that are positioned at rotor 1 both sides and symmetrically arranged spring 8 are fixed on the connecting rod 5.Fixed lever 7 connects an end that is positioned at rotor 1 both sides and symmetrically arranged connecting plate 4, and the other end of connecting plate 4 is enclosed within on the connecting rod 5.Must not interfere with rotor 1 during the design of the overall dimension of connecting plate 4, with rotor 1 be that little matched in clearance gets final product.An end that is positioned at contact 2 both sides and symmetrically arranged a pair of connecting plate 3 is enclosed within on the connecting rod 5, the other end is enclosed within on the connecting rod 6, the profile of connecting plate 3 must not be interfered with rotor 1, can make contact 2 can freely rotate in rotor 1 both sides radially when closing position turns to locked position, connecting plate 3 is little matched in clearance with rotor 1 and contact 2.As Fig. 4-5, connecting rod 6 passes contact 2 and is the axial symmetry setting with bearing pin 12; Be positioned at the longest position of stretching at spring 8, three point on a straight line is arranged at two the link centers of connecting plate 3 and connecting rod 6 and the center of bearing pin 12.
Centre in the upper and lower end face of rotor 1 is symmetrical arranged a pair of groove 9, and connecting plate 4 places in the groove 9 with spring 8; Connecting rod 5 is through between the dead slot of groove 9 and rotor 1.Fixed lever 7 is positioned at groove 9 both sides and is fixed on the rotor 1.When contact 2 rotations, the effect of connecting plate 4 is the component of 3 pairs of rotors 1 of connecting plate can be transformed on the fixed lever 7.
When the present invention works, contact 2 is when closing position turns to locked position, drive connecting rod 6, connecting plate 3 and connecting rod 5 actions of two symmetries by contact 2, by connecting rod 5 extension springs 8, when spring 8 is stretched to the longest position, this moment connecting plate 3 with 3 at the center of two link centers of connecting rod 6 and bearing pin 12 at same straight line, form the dead-centre position of spring 8.When spring 8 through these positions, dead point, contact 2 still rotatablely moves continuing, the effect of spring 8 by 3 pairs of contacts 2 of connecting plate makes contact 2 rotate and keep this state to locked position, reaches the purpose of pinning.
When low-voltage circuit breaker closes a floodgate, drive rotor 1 rotation by operating mechanism, at this moment, spring 8 on the rotor 1 acts on connecting plate 3 by the connecting rod 5 that is through 9 of grooves, the moving belt of connecting plate 3 bar 6 that is dynamically connected is done spinning movement, and just the masterpiece that spring 8 is transmitted is used for contact 2, provides contact 2 pressure.
Under the situation of low-voltage circuit breaker at less short circuit current, contact 2 is scolded out a smaller angle, 2 pairs of connecting plates 3 of contact apply effect, overcome the power motion of spring 8, dead-centre position up to above-mentioned three point on a straight line, contact 2 continues motion this moment, and the effect of 3 pairs of contacts 2 of connecting plate makes contact 2 to the motion of locked position direction and keep this trend, thereby reaches the pinning purpose.
Claims (2)
1. contact stop component of low-voltage circuit breaker, contact (2) is an axisymmetric shape with rotor (1), contact (2) runs through and rotation in the dead slot of rotor (1) along the radial symmetric of rotor (1), and bearing pin (12) is the rotary middle spindle of contact (2) and rotor (1); With bearing pin (12) is that fixed lever (7) and the head rod (5) that axial symmetry is provided with passes rotor (1), the two ends that are positioned at rotor (1) both sides and symmetrically arranged spring (8) are fixed on the head rod (5), fixed lever (7) connection is positioned at rotor (1) both sides and symmetrically arranged first connecting plate (4) one ends, first connecting plate (4) other end is enclosed within on the head rod (5), it is characterized in that: be positioned at contact (2) both sides and symmetrically arranged second connecting plate (3) one ends are enclosed within on the head rod (5), the other end is enclosed within on second connecting rod (6), and second connecting rod (6) passes contact (2) and is the axial symmetry setting with bearing pin (12); Be positioned at the longest position of stretching at spring (8), three point on a straight line is arranged at two the link centers of second connecting plate (3) and second connecting rod (6) and the center of bearing pin (12).
2. contact stop component of low-voltage circuit breaker according to claim 1 is characterized in that: the centre in the upper and lower end face of rotor (1) is symmetrical arranged a pair of groove (9), and first connecting plate (4) places in the groove (9) with spring (8); Head rod (5) is through between groove (9), and fixed lever (7) is positioned at groove (9) both sides and is fixed on the rotor (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100266837A CN101685732B (en) | 2009-05-11 | 2009-05-11 | Contact stop component of low-voltage circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100266837A CN101685732B (en) | 2009-05-11 | 2009-05-11 | Contact stop component of low-voltage circuit breaker |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101685732A CN101685732A (en) | 2010-03-31 |
| CN101685732B true CN101685732B (en) | 2011-06-29 |
Family
ID=42048817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009100266837A Active CN101685732B (en) | 2009-05-11 | 2009-05-11 | Contact stop component of low-voltage circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101685732B (en) |
-
2009
- 2009-05-11 CN CN2009100266837A patent/CN101685732B/en active Active
Non-Patent Citations (1)
| Title |
|---|
| JP特开2005-310780A 2005.11.04 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101685732A (en) | 2010-03-31 |
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| C06 | Publication | ||
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| C14 | Grant of patent or utility model | ||
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Owner name: ZHENJIANG POWER SUPPLY COMPANY, JIANGSU PROV. POWE Effective date: 20140827 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140827 Address after: 212132 mechanical and Electrical Industrial Park, East Xing Gang Dong Road, Zhenjiang New District, Jiangsu, Zhenjiang A5 Patentee after: Jiangsu Phono Electric Co.,Ltd. Patentee after: JIANGSU ZHENJIANG ELECTRIC POWER SUPPLY Corp. Address before: 212132 mechanical and Electrical Industrial Park, East Xing Gang Dong Road, Zhenjiang New District, Jiangsu, Zhenjiang A5 Patentee before: Jiangsu Phono Electric Co.,Ltd. |
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| DD01 | Delivery of document by public notice |
Addressee: Niu Rui Document name: Notification of Passing Examination on Formalities |
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| CP01 | Change in the name or title of a patent holder |
Address after: 212132 mechanical and Electrical Industrial Park, East Xing Gang Dong Road, Zhenjiang New District, Jiangsu, Zhenjiang A5 Patentee after: Jiangsu Phono Electric Co.,Ltd. Patentee after: ZHENJIANG POWER SUPPLY COMPANY, STATE GRID JIANGSU ELECTRIC POWER Co. Address before: 212132 mechanical and Electrical Industrial Park, East Xing Gang Dong Road, Zhenjiang New District, Jiangsu, Zhenjiang A5 Patentee before: Jiangsu Phono Electric Co.,Ltd. Patentee before: JIANGSU ZHENJIANG ELECTRIC POWER SUPPLY Corp. |
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| CP01 | Change in the name or title of a patent holder | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220309 Address after: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang District, Zhenjiang, Jiangsu A5 Patentee after: Jiangsu Phono Electric Co.,Ltd. Address before: 212132 mechanical and Electrical Industrial Park, East Xing Gang Dong Road, Zhenjiang New District, Jiangsu, Zhenjiang A5 Patentee before: Jiangsu Phono Electric Co.,Ltd. Patentee before: ZHENJIANG POWER SUPPLY COMPANY, STATE GRID JIANGSU ELECTRIC POWER Co. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220513 Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee after: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd. Address before: 212132 mechanical and Electrical Industrial Park, Dagang East Road, Dagang District, Zhenjiang, Jiangsu A5 Patentee before: Jiangsu Phono Electric Co.,Ltd. |
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| TR01 | Transfer of patent right | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee after: Eaton Huineng low voltage electrical appliances (Jiangsu) Co.,Ltd. Address before: 212132 No. 97, Wufengshan Road, Dagang, New District, Zhenjiang City, Jiangsu Province Patentee before: Huineng low voltage electric appliance (Jiangsu) Co.,Ltd. |