CN201804723U - Contact connecting mechanism - Google Patents
Contact connecting mechanism Download PDFInfo
- Publication number
- CN201804723U CN201804723U CN2009203175981U CN200920317598U CN201804723U CN 201804723 U CN201804723 U CN 201804723U CN 2009203175981 U CN2009203175981 U CN 2009203175981U CN 200920317598 U CN200920317598 U CN 200920317598U CN 201804723 U CN201804723 U CN 201804723U
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- CN
- China
- Prior art keywords
- contact
- conductor
- touch finger
- spring touch
- spring
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
A contact connecting mechanism in the field of electric switches includes a spring contact finger, a contact seat and two guide sleeves, wherein the spring contact finger is clamped in the contact seat, the two guide sleeves are fixed on the internal and the external sides of the spring contact finger respectively, and a conductor is located in the contact seat and is in contact with the spring contact finger and the two guide sleeves respectively. Under the action of the force of the short-circuit current, the contact connecting mechanism ensures that the excessive radial displacement of the conductor can not happen, thereby avoiding the fusion welding of a spring contact and improving the reliability of equipment.
Description
Technical field
The utility model relates to a kind of device of power switch technical field, specifically is a kind of contact coupling mechanism.
Background technology
Conductor under the short circuit current electrodynamic action, conductor that tangible radial displacement can not take place after inserting contact base, and when displacement (swing) was excessive, the contact pressure of partial spring contact diminished or loses, and contact resistance increases suddenly, and spring contact is understood melting welding surely.Short-circuit electromotive force can make also that conductor and contact base inwall are collided in addition, shunting, loose contact and play electric arc, or ablation conductor, contact base or weldering are dead.Therefore for conductor effective positioner must be set.
Most at present contact hookups, the positioner of employing is for to be provided with central locating rod on contact base, and end conductor is opened centre bore, and backstay inserts in the conductor centre bore.Exist very big defective in this structure, because backstay is a metal material, under the short circuit current electrodynamic action, conductor generation radial displacement, conductor and backstay are collided, shunting, loose contact and play electric arc.
Find through retrieval prior art, Chinese patent literature CN1440580A has put down in writing a kind of " bus tie ", this technology is made up of one first contact (17) and one second contact (18), first contact (17) wherein so is fixed on prejudicially about its longitudinal axis (L1) on the position of establishing about its longitudinal axis (L2) also off-centre of second contact (18), be these two contacts (17,18) longitudinal axis (L1, L2) mutually vertical but each interval one segment distance (A) of trend, thereby contact (17,18) contact-making surface is non-intersect or not overlapping, but 90 ° of ground of wrong relatively commentaries on classics are established side by side.But the prior art is on the one hand for the restricted requirement of the direction in through-flow loop, only is used to move towards orthogonal or linable and around the bus of its rotational 90 degree.And in fact very various in the trend of switching device median generatrix, its technology can't satisfy at all.The prior art does not solve the problem that may cause electric arc after itself and the busbar connection owing to loose contact at all in addition.
The utility model content
The utility model is at the prior art above shortcomings, a kind of contact coupling mechanism is provided, guarantee under the short circuit current electrodynamic action, the conductor radial displacement can be not excessive, thereby avoid spring contact melting welding, the reliability of raising equipment, mounting means is flexible simultaneously, is applicable to the bus of various trends.
The utility model is achieved through the following technical solutions, the utility model comprises: spring touch finger, contact base and two fairleads, wherein: spring touch finger is connected in the contact base, two fairleads are fixedly set in the inside and outside both sides of spring touch finger respectively, and conductor is positioned at contact base and contacts with spring touch finger and fairlead respectively.
The inboard of described spring touch finger contacts with conductor, and the outside of spring touch finger contacts with contact base.
The internal diameter of described fairlead is
External diameter is
Width is 8mm; Guaranteed except that spring touch finger with conductor contacts, other position of conductor can not contact with contact base.Fairlead circumference semicircle place leaves a straight trough, can make fairlead in a circumferential direction can dilatation so that be fit in the contact base.
Description of drawings
Fig. 1 is the utility model structural representation.
Fig. 2 is the spring touch finger schematic diagram.
Fig. 3 is the fairlead schematic diagram;
Wherein: Fig. 3 a is a structural representation; Fig. 3 b is the A-A cutaway view.
Embodiment
Below embodiment of the present utility model is elaborated; present embodiment is being to implement under the prerequisite with technical solutions of the utility model; provided detailed execution mode and concrete operating process, but protection range of the present utility model is not limited to following embodiment.
As depicted in figs. 1 and 2, present embodiment comprises: contact base 1, spring touch finger 2, first fairlead 3, conductor 4 and second fairlead 5, wherein: spring touch finger 2 is connected in the contact base 1, first fairlead 3 and second fairlead 5 are fixedly set in the inside and outside both sides of spring touch finger 2 respectively, and conductor 4 is positioned at contact base 1 and contacts with spring touch finger 2 and fairlead respectively.
As shown in Figure 2, described spring touch finger 2 is a ring spring, and its inboard contacts with conductor 4, and the outside of spring touch finger 2 contacts with contact base 1.The annular outer diameter D of this spring touch finger 2
1Be 104.5mm, annular inside diameter D
2Be 88mm, screw diameter d is 8.76mm.
As shown in Figure 3, the inside diameter D of described first fairlead 3 and second fairlead 5
4For
Outer diameter D
3For
Width d is
Guaranteed except that spring touch finger 2 with conductor 4 contacts, other position of conductor 4 can not contact with contact base 1.
Claims (4)
1. contact coupling mechanism, it is characterized in that, comprise: spring touch finger, contact base and two fairleads, wherein: spring touch finger is connected in the contact base, two fairleads are fixedly set in the inside and outside both sides of spring touch finger respectively, and conductor is positioned at contact base and contacts with spring touch finger and fairlead respectively.
2. contact coupling mechanism according to claim 1 is characterized in that the inboard of described spring touch finger contacts with conductor, and the outside of spring touch finger contacts with contact base.
3. contact coupling mechanism according to claim 1 and 2 is characterized in that, described spring touch finger is a ring spring, and the annular external diameter of this spring touch finger is 104.5mm, and annular internal diameter is 88mm, and screw diameter is 8.76mm.
4. contact coupling mechanism according to claim 1 is characterized in that, the internal diameter of described fairlead is the 88.8mm size, and external diameter is the 96.8mm size, and width is the 8mm size.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203175981U CN201804723U (en) | 2009-12-16 | 2009-12-16 | Contact connecting mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009203175981U CN201804723U (en) | 2009-12-16 | 2009-12-16 | Contact connecting mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201804723U true CN201804723U (en) | 2011-04-20 |
Family
ID=43874227
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009203175981U Expired - Fee Related CN201804723U (en) | 2009-12-16 | 2009-12-16 | Contact connecting mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201804723U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969193A (en) * | 2012-11-13 | 2013-03-13 | 北京京东方真空电器有限责任公司 | Direct-acting vacuum switch device of ring main unit (RMU) |
| CN104347283A (en) * | 2013-08-05 | 2015-02-11 | Abb技术有限公司 | High voltage interrupter unit with improved mechanical endurance |
| CN106198268A (en) * | 2016-07-13 | 2016-12-07 | 河南平高电气股份有限公司 | A kind of spring touch finger life testing method and frock |
| CN114709092A (en) * | 2021-12-24 | 2022-07-05 | 平高集团有限公司 | Static contact, circuit breaker and gas insulated metal enclosed switchgear |
-
2009
- 2009-12-16 CN CN2009203175981U patent/CN201804723U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102969193A (en) * | 2012-11-13 | 2013-03-13 | 北京京东方真空电器有限责任公司 | Direct-acting vacuum switch device of ring main unit (RMU) |
| CN102969193B (en) * | 2012-11-13 | 2015-11-25 | 北京京东方真空电器有限责任公司 | A kind of ring main unit direct-acting vacuum switching device |
| CN104347283A (en) * | 2013-08-05 | 2015-02-11 | Abb技术有限公司 | High voltage interrupter unit with improved mechanical endurance |
| CN106198268A (en) * | 2016-07-13 | 2016-12-07 | 河南平高电气股份有限公司 | A kind of spring touch finger life testing method and frock |
| CN114709092A (en) * | 2021-12-24 | 2022-07-05 | 平高集团有限公司 | Static contact, circuit breaker and gas insulated metal enclosed switchgear |
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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: 20110420 Termination date: 20151216 |
|
| EXPY | Termination of patent right or utility model |