CN202084490U - Auxiliary contact device of frame circuit breaker - Google Patents
Auxiliary contact device of frame circuit breaker Download PDFInfo
- Publication number
- CN202084490U CN202084490U CN 201120132877 CN201120132877U CN202084490U CN 202084490 U CN202084490 U CN 202084490U CN 201120132877 CN201120132877 CN 201120132877 CN 201120132877 U CN201120132877 U CN 201120132877U CN 202084490 U CN202084490 U CN 202084490U
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- CN
- China
- Prior art keywords
- contact
- connecting rod
- auxiliary contact
- circuit breaker
- lever
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- Expired - Fee Related
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Abstract
The utility model relates to an auxiliary contact device of a frame circuit breaker, which belongs to the field of electric switches. The auxiliary contact device comprises a moving contact-fixed contact rotary type structure component which is in mechanical linkage with a main circuit contact, wherein a moving contact consists of two pieces of elastic conductive bodies and takes the shape of 'Y', a fixed contact is formed by right-angle distribution of four pieces of conductive bodies, and the whole moving contact-fixed contact rotary type structure component is fixed on an installation surface of the base. The auxiliary contact device is characterized in that a connecting rod and a lever are sequentially arranged between a cantilever of the main circuit contact and a rotating shaft of an auxiliary contact, first pin connection is arranged between the cantilever of the main circuit contact and the connecting rod, and second pin connection is arranged between the connecting rod and the lever. The auxiliary contact device increases an action actuating arm, and the whole auxiliary contact device is not provided with a reaction spring in on/off conversion, so as to prevent the lever and the connecting rod from crossing over 'dead points' when the circuit breaker is switched on, and avoid the energy consumption of the circuit breaker and an energy storage spring. The auxiliary contact device can be widely used in the fields of design and manufacturing of energy storage type circuit breakers.
Description
Technical field
The utility model belongs to the electric switch field, relates in particular to a kind of protective overload circuit-breakin.
Background technology
Circuit breaker is the electric current under the connection of a kind of energy, carrying and the disjunction normal circuit condition, also can connect, carry the mechanical switch electrical equipment of certain hour and breaking current under the improper circuit condition of regulation.
Based on the needs of aspects such as circuit logic control or signal indication, circuit breaker usually can be outside main circuit contact moving system, and one group or array and main circuit contact synchronization action, and the auxiliary contact of main contact mechanical linkage are set.
Auxiliary contact is a kind of and the interlock of main circuit contact, and with the low capacity switch contact of the synchronous on/off of main circuit contact, it is generally used for electrical control or deixis, is divided into plurality of specifications by the contact logarithm.
Among China's utility model patent ZL 97234546.9 " auxiliary contacts of circuit breaker " or the ZL 02219640.4 " auxiliary contact of circuit breaker ", structure, the course of action of auxiliary contact device commonly used have been done more detailed disclosing.
Existing common auxiliary contact device, a kind of is sensitive switch closed assembly pattern (using as DW15-HH), its shortcoming is that electric clearance is less, is easy to generate electric spark between the contact, influences its useful life and on/off work quality; Another kind is Direct Action Type (using as DW45), though had bigger electric clearance, due to its design feature, reaction force is bigger during its on/off operation conversion, energy consumption to the circuit breaker energy-stored spring is more, and the on/off service speed of main circuit contact is had certain influence.
The utility model content
Technical problem to be solved in the utility model provides a kind of frame circuit breaker auxiliary contact device, and it is when having big electric clearance, and reaction force is littler during the on/off conversion, can further reduce the consumption to circuit breaker energy-stored spring energy.
The technical solution of the utility model is: a kind of frame circuit breaker auxiliary contact device is provided, comprise moving contact-fixed contact rotary structure assembly with the mechanical linkage of main circuit contact, described moving contact is made up of two elastic electric conductors, be shaped as " Y " shape, described fixed contact is at right angles distributed by four electric conductors, whole moving contact-fixed contact rotary structure assembly is fixed on the pedestal installed surface, it is characterized in that: between main circuit contact cantilever and auxiliary contact rotating shaft, set gradually connecting rod and lever; Between described main circuit contact cantilever and connecting rod, first pin joint is set connects; Between described connecting rod and lever, second pin joint is set connects.
Further, L shaped one-sided guide vane end stop is set on the described lever.
Wherein, described auxiliary contact rotating shaft center is to the first cursor distance of pedestal installed surface, less than the second cursor distance at main circuit contact cantilever rotating shaft center to the connecting rod first pin joint axle center.
The distance that is positioned at the first pin joint axle center to the second pin joint axle center that is positioned at the described connecting rod other end of described connecting rod one end is 77 centimetres.
Compared with the prior art, the utility model has the advantages that:
1. set up lever, the linearly operating kind of drive of connecting rod is become the spinning movement kind of drive, increased the action arm of force, the energy consumption when having reduced the conversion of auxiliary contact on/off;
2. the unidirectional guide vane end stop of L type is set, can prevents that lever and connecting rod from crossing " dead point " when breaker closing;
3. whole auxiliary contact device does not have reaction spring when on/off is changed, further reduced the energy consumption to circuit breaker and energy-stored spring.
Description of drawings
Fig. 1 is circuit breaker structural representation of the present utility model when being positioned at gate-dividing state;
Fig. 2 is circuit breaker structural representation of the present utility model when being positioned at gate-dividing state;
Fig. 3 be moving in the technical program auxiliary contact device/the fixed contact position concerns schematic diagram.
1 is auxiliary contact among the figure, and 2 is lever, and 3 is connecting rod, and 4 is cantilever, and 5 is the pedestal installed surface, and L shaped one-sided guide vane end stop 6,11 is a bearing, and 12 are rotating shaft, and 16 is fixed contact, and 17 is moving contact, and 18 is insulation board.
Embodiment
Below in conjunction with drawings and Examples the utility model is described further.
Among Fig. 1 and Fig. 2, this device comprises the moving contact-fixed contact rotary structure assembly with the mechanical linkage of main circuit contact, described moving contact is made up of two elastic electric conductors, be shaped as " Y " shape, described fixed contact is at right angles distributed by four electric conductors, whole moving contact-fixed contact rotary structure assembly is fixed on the pedestal installed surface, and it sets gradually connecting rod 3 and lever 2 between main circuit contact cantilever 4 and auxiliary contact rotating shaft 12; Between described main circuit contact cantilever and connecting rod, first pin joint is set connects; Between described connecting rod and lever, second pin joint is set connects.
Further, L shaped one-sided guide vane end stop 6 is set on the described lever.
Wherein, described auxiliary contact rotating shaft center is to the first cursor distance L 1 of pedestal installed surface, less than the second cursor distance L 2 at main circuit contact cantilever rotating shaft center to the connecting rod first pin joint axle center.
The distance L 3 that is positioned at the first pin joint axle center to the second pin joint axle center that is positioned at the described connecting rod other end of described connecting rod one end is 77 centimetres.
The working condition of auxiliary contact is 90 ° and reaches Chang Kai and normally closed mutual conversion.Auxiliary contact device operation principle is: cantilever rotates 41 °, by the transmission of connecting rod, makes lever rotate 90 °, finishes often the opening of auxiliary contact, normally closed conversion.
During actual enforcement, the installation site of auxiliary contact must be satisfied L1＜L2, L3=77 and could be guaranteed: frame circuit breaker mechanism operating angle is 41 °, by the motion of cantilever 4, connecting rod 3, lever 2, promotes auxiliary contact 1 half-twist
Among Fig. 3, provided the position relation of moving/fixed contact in this auxiliary contact device, as seen from the figure, moving contact 17 is made up of two elastic electric conductors, be shaped as " Y " shape, and fixed contact 16 is by the setting that at right angles distributes of four electric conductors.
During work, moving contact slips into fixed contact, finishes the connection circuit.
The rotary structure of the structure of this auxiliary contact device inside and operation principle and commercially available prod F10 auxiliary contact is similar, no longer narrates at this.
The utility model can be widely used in the design and the manufacturing field of energy storage type circuit breaker.
Claims (4)
1. frame circuit breaker auxiliary contact device, comprise moving contact-fixed contact rotary structure assembly with the mechanical linkage of main circuit contact, described moving contact is made up of two elastic electric conductors, be shaped as " Y " shape, described fixed contact is at right angles distributed by four electric conductors, whole moving contact-fixed contact rotary structure assembly is fixed on the pedestal installed surface, it is characterized in that:
Between main circuit contact cantilever and auxiliary contact rotating shaft, set gradually connecting rod and lever;
Between described main circuit contact cantilever and connecting rod, first pin joint is set connects;
Between described connecting rod and lever, second pin joint is set connects.
2. according to the described frame circuit breaker auxiliary contact of claim 1 device, it is characterized in that being provided with on the described lever L shaped one-sided guide vane end stop.
3. according to the described frame circuit breaker auxiliary contact of claim 1 device, it is characterized in that the first cursor distance of described auxiliary contact rotating shaft center, less than the second cursor distance at main circuit contact cantilever rotating shaft center to the connecting rod first pin joint axle center to the pedestal installed surface.
4. according to the described frame circuit breaker auxiliary contact of claim 1 device, the distance that it is characterized in that being positioned at the first pin joint axle center to the second pin joint axle center that is positioned at the described connecting rod other end of described connecting rod one end is 77 centimetres.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120132877 CN202084490U (en) | 2011-04-29 | 2011-04-29 | Auxiliary contact device of frame circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201120132877 CN202084490U (en) | 2011-04-29 | 2011-04-29 | Auxiliary contact device of frame circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202084490U true CN202084490U (en) | 2011-12-21 |
Family
ID=45345112
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201120132877 Expired - Fee Related CN202084490U (en) | 2011-04-29 | 2011-04-29 | Auxiliary contact device of frame circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202084490U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847638A (en) * | 2017-03-14 | 2017-06-13 | 江苏高博锐电气有限公司 | A kind of plug-in auxiliary contact |
| CN110571109A (en) * | 2018-06-06 | 2019-12-13 | 上海良信电器股份有限公司 | Auxiliary contact for universal circuit breaker |
-
2011
- 2011-04-29 CN CN 201120132877 patent/CN202084490U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106847638A (en) * | 2017-03-14 | 2017-06-13 | 江苏高博锐电气有限公司 | A kind of plug-in auxiliary contact |
| CN110571109A (en) * | 2018-06-06 | 2019-12-13 | 上海良信电器股份有限公司 | Auxiliary contact for universal circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111221 Termination date: 20190429 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |