CN1971801A - Contactor system with self-regulating tolerance and reactive torsion spring stiffness - Google Patents
Contactor system with self-regulating tolerance and reactive torsion spring stiffness Download PDFInfo
- Publication number
- CN1971801A CN1971801A CN 200610098148 CN200610098148A CN1971801A CN 1971801 A CN1971801 A CN 1971801A CN 200610098148 CN200610098148 CN 200610098148 CN 200610098148 A CN200610098148 A CN 200610098148A CN 1971801 A CN1971801 A CN 1971801A
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- moving contact
- contact
- rotation
- torsion spring
- rotation moving
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Abstract
This invention relates to probe system with self-adjusting capacity and reverse torque rigidity, wherein, the system comprises the following parts: one pair of fix probe with one fix probe; one rotation dynamic probe; two freedom end probe fixed on the rotation dynamic probe; one rotation main axis; one second bolt; one first bolt; one torque. The invention is characterized by the following: setting one inclination at anglealpha to rotation probe to support one torque arm and to permit slide on inclination.
Description
Technical field
The present invention relates to the contact apparatus of a kind of current-limiting type moulded case circuit breaker band self-regulating tolerance and reactive torsion spring stiffness.
Background technology
At present, guarantee to have between the dynamic/static contact contact system of the double break point of enough contact pressures with placing side by side torsion spring, general all is to make a holddown groove to fix the end that torsion spring links to each other on the rotation moving contact, strict for the brachium that is fixed on the continuous side of torsion spring on the moving contact holddown groove like this, the tolerance grade height of brachium.In addition, take place under the big short circuit current situation at electrodynamic repulsion force type current limiting circuit breaker, electrodynamic repulsion force is scolded open contact after will overcoming the counter-force of torsion spring to moving contact.Along with the increase of the anglec of rotation of moving contact, adopt fixed slot configurations the contact system torsion spring windup-degree on year-on-year basis the moving contact anglec of rotation increase, the torsion spring counter-force also increases thereupon.
Summary of the invention
In order to address the above problem, the object of the present invention is to provide a kind of contact system with self-regulating tolerance and reactive torsion spring stiffness, moving contact fixedly the structure of torsion spring be designed to an inclined-plane at an angle, angle can be designed to different value according to concrete carrying.When the end that links to each other with torsion spring to turn round arm long partially or can find suitable position by sliding partially in short-term on the inclined-plane, increased the tolerance of torsion spring arm, reduced processing request.
According to technical scheme provided by the invention, the contact system of band self-regulating tolerance and reactive torsion spring stiffness comprises: a pair of fixed contact with corresponding terminal electrical connection, has a fixed contact thereon respectively separately;
A rotation moving contact has a centre bore, and between a pair of fixed contact;
A pair of be fixed on the rotation moving contact two free-ended moving contacts, moving contact by the rotation moving contact rotation with respect to fixed contact be connected or separation;
A rotary main shaft has the tubaeform groove of admitting the rotation moving contact, and two free ends of rotation moving contact stretch out to both sides from the axle center of rotary main shaft respectively;
One second pin, it passes the axle center of rotary main shaft and the centre bore of rotation moving contact, constitutes the rotation of above-mentioned rotation moving contact and above-mentioned rotary main shaft;
One first pin is positioned at an end of the tubaeform groove on the rotary main shaft;
A torsion spring, its middle part are enclosed within on second pin, and the arm of turning round of one end contacts with the rotation moving contact, and the arm of turning round of the other end is hooked on above-mentioned first pin, and is fashionable when circuit breaker closing, guarantees to have enough contact pressures between rotation moving contact and a pair of fixed contact;
It is characterized in that: an inclined-plane with a face angled α of rotation on the moving contact is being set on the above-mentioned rotation moving contact, and this inclined-plane is used for supporting of torsion spring and turns round arm, and allows this to turn round arm to slide on this inclined-plane.
At the step that the intersection of inclined-plane and a face is provided with, what be used to limit torsion spring turns round the sliding distance of arm on the inclined-plane.
Advantage of the present invention is: because the turning round arm can move adjusting automatically on the inclined-plane of moving contact of torsion spring, after moving contact was subjected to electrodynamic repulsion force to scold out rotation, the windup-degree of torsion spring was not on year-on-year basis in the anglec of rotation of moving contact, but less than the anglec of rotation of moving contact.So just reduced the counter-force of torsion spring to a certain extent, under the electrodynamic repulsion force effect of same short circuit current, that scolds out between dynamic/static contact effectively opens apart from bigger.
Description of drawings
The sectional view of Fig. 1 contact system.
The partial section of Fig. 2 contact system.
Embodiment
Following with reference to accompanying drawing, with specific embodiment the present invention is described.
As depicted in figs. 1 and 2, a pair of fixed contact 11 and 11 ' with corresponding terminal electrical connection, has a fixed contact 111 and 11 ' 1 thereon respectively separately;
A rotation moving contact 12 has a centre bore 123, and is positioned between a pair of fixed contact 11 and 11 ';
A pair of two free-ended moving contacts 121 and 121 ' that are fixed on rotation moving contact 12, moving contact 121 is connected or separates with 11 ' with respect to fixed contact 11 with the 121 ' rotation by rotation moving contact 12;
A rotary main shaft 13 has the tubaeform groove 131 of admitting rotation moving contact 12, and two free ends of rotation moving contact 12 stretch out to both sides from the axle center of rotary main shaft 13 respectively;
One second pin 16, it passes the axle center of rotary main shaft 13 and the centre bore 123 of rotation moving contact 12, constitutes the rotation of above-mentioned rotation moving contact 12 and above-mentioned rotary main shaft 13;
Sell 15 for one first, be positioned at an end of the tubaeform groove 131 on the rotary main shaft 13;
A torsion spring 14, its middle part is enclosed within on second pin 16, and the arm 142 of turning round of one end contacts with rotation moving contact 12, and the arm 141 of turning round of the other end is hooked on above-mentioned first pin 15, fashionable when circuit breaker closing, guarantee between rotation moving contact 12 and a pair of fixed contact 11 and 11 ', to have enough contact pressures;
Inclined-plane 124 with a face angled α of rotation on the moving contact 12 is being set on the above-mentioned rotation moving contact 12, this inclined-plane 124 is used for supporting of torsion spring 14 and turns round arm 142, and allow this to turn round arm 142 on this inclined-plane 124, to slide, turn round the deviation of arm 142 and regulate its windup-degree to accept it.When the length of turning round arm 142 has deviation, can on inclined-plane shown in Figure 2 124, slide up and down and find suitable fixed-site, increase the tolerance of its brachium.
124 steps 125 that are provided with the intersection of a face on the inclined-plane, what be used to limit torsion spring 14 turns round the sliding distance of arm 142 on inclined-plane 12, in order to avoid torsion spring 14 turn round arm 142 landings.
As shown in Figure 2, contact system of the present invention is under the circuit breaker short circuit situation, rotation moving contact 12 sells 16 with second under the effect of electrodynamic repulsion force be that the center turns clockwise, torsion spring 14 lean against inclined-plane 124 an end turn round arm along with rotation time can be along the direction of diagram arrow with respect to inclined-plane 124 to lower slider, reduced the windup-degree of torsion spring 14 like this, correspondingly, the counter-force of torsion spring 14 just has minimizing to a certain degree, the counter-force of torsion spring 14 is in the more constant scope all the time, thereby improves the accuracy of contact system when action.
The present invention is applicable to have and places side by side two current limliting circuit breakers that reverse the torsion spring contact system.
Claims (2)
1, a kind of contact system with self-regulating tolerance and reactive torsion spring stiffness, it comprises:
A pair of fixed contact (11) and (11 '), with corresponding terminal electrical connection, has a fixed contact (111) and (11 ' 1) thereon separately respectively;
A rotation moving contact (12) has a centre bore (123), and is positioned at a pair of fixed contact (11) and between (11 ');
A pair of two free-ended moving contacts (121) and (121 ') that is fixed on rotation moving contact (12), moving contact (121) is connected or separates with (11 ') with respect to fixed contact (11) with (121 ') rotation by rotation moving contact (12);
A rotary main shaft (13) has the tubaeform groove (131) of admitting rotation moving contact (12), and two free ends of rotation moving contact (12) stretch out to both sides from the axle center of rotary main shaft (13) respectively;
One second pin (16), it passes the axle center of rotary main shaft (13) and the centre bore (123) of rotation moving contact (12), constitutes the rotation of above-mentioned rotation moving contact (12) and above-mentioned rotary main shaft (13);
One first pin (15) is positioned at an end of the tubaeform groove (131) on the rotary main shaft (13);
A torsion spring (14), its middle part is enclosed within on second pin (16), the arm (142) of turning round of one end contacts with rotation moving contact (12), the arm (141) of turning round of the other end is hooked on above-mentioned first pin (15), fashionable when circuit breaker closing, guarantee rotating moving contact (12) and a pair of fixed contact (11) and having enough contact pressures between (11 ');
It is characterized in that: be provided with on the above-mentioned rotation moving contact (12) one with rotation moving contact (12) on the inclined-plane (124) of the angled α of a face, this inclined-plane (124) is used for supporting of torsion spring (14) and turns round arm (142), and allows this to turn round arm (142) to go up in this inclined-plane (124) and slide.
2, according to claim 1 with the contact system of self-regulating tolerance and reactive torsion spring stiffness, it is characterized in that, the step (125) that the intersection of (124) and a face is provided with on the inclined-plane, what be used to limit torsion spring (14) turns round the sliding distance of arm (142) on inclined-plane (12).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100981489A CN100466139C (en) | 2006-11-30 | 2006-11-30 | Contactor system with self-regulating tolerance and reactive torsion spring stiffness |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006100981489A CN100466139C (en) | 2006-11-30 | 2006-11-30 | Contactor system with self-regulating tolerance and reactive torsion spring stiffness |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1971801A true CN1971801A (en) | 2007-05-30 |
| CN100466139C CN100466139C (en) | 2009-03-04 |
Family
ID=38112543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006100981489A Expired - Fee Related CN100466139C (en) | 2006-11-30 | 2006-11-30 | Contactor system with self-regulating tolerance and reactive torsion spring stiffness |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100466139C (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335135B (en) * | 2007-06-29 | 2011-04-20 | 西门子公司 | Dual rotary disk switching contact arrangement |
| CN101740273B (en) * | 2008-11-10 | 2013-04-10 | 西门子公司 | Switch device |
| CN108091500A (en) * | 2016-11-23 | 2018-05-29 | 浙江正泰电器股份有限公司 | Double breaking points touch the pressure self-balancing structure of bridge |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3794163B2 (en) * | 1998-04-21 | 2006-07-05 | 三菱電機株式会社 | Circuit breaker |
| ITMI20012325A1 (en) * | 2001-11-06 | 2003-05-06 | Abb Service Srl | LOW VOLTAGE SWITCH |
| CN200990355Y (en) * | 2006-11-30 | 2007-12-12 | Tcl低压电器(无锡)有限公司 | Contact mechanism with self-regulating tolerance and reaction torsional spring stiffness |
-
2006
- 2006-11-30 CN CNB2006100981489A patent/CN100466139C/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101335135B (en) * | 2007-06-29 | 2011-04-20 | 西门子公司 | Dual rotary disk switching contact arrangement |
| CN101740273B (en) * | 2008-11-10 | 2013-04-10 | 西门子公司 | Switch device |
| CN108091500A (en) * | 2016-11-23 | 2018-05-29 | 浙江正泰电器股份有限公司 | Double breaking points touch the pressure self-balancing structure of bridge |
| WO2018095315A1 (en) * | 2016-11-23 | 2018-05-31 | 浙江正泰电器股份有限公司 | Self-balancing structure capable of balancing pressing forces on double-break contact bridge |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100466139C (en) | 2009-03-04 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20090304 Termination date: 20091230 |