CN206331990U - Electric contact-system - Google Patents
Electric contact-system Download PDFInfo
- Publication number
- CN206331990U CN206331990U CN201621311141.6U CN201621311141U CN206331990U CN 206331990 U CN206331990 U CN 206331990U CN 201621311141 U CN201621311141 U CN 201621311141U CN 206331990 U CN206331990 U CN 206331990U
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- CN
- China
- Prior art keywords
- contact
- connecting rod
- insulation rotor
- shaped groove
- moving contact
- 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.)
- Withdrawn - After Issue
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Abstract
The utility model provides a kind of electric contact-system, including insulation rotor, and two static contacts are centrosymmetric settings outside insulation rotor, and moving contact passes through insulation rotor, and the stationary contact of two movable contacts corresponding two static contacts respectively at moving contact two ends；Connecting rod is in insulation rotor, the symmetrical centre of moving contact and being riveted centrally through central shaft for connecting rod；Connecting rod is respectively arranged at two ends with a hanging scroll, is connected respectively by a spring between moving contact two ends and two hanging scrolls；V-shaped groove is provided with insulation rotor at correspondence hanging scroll two ends, hanging scroll two ends are coupled in corresponding V-shaped groove and with the inclined plane slip of V-shaped groove.The device that the utility model is provided overcomes the deficiencies in the prior art, it is simple in construction, it is able to ensure that the balance for still ensureing two ends contact in the case where double break point travelling contact two ends scaling loss is inconsistent, ensure the reliability of contact, the precision and difficulty needed for manufacture are reduced, while also having level of competitiveness in cost.
Description
Technical field
The utility model is related to a kind of electric contact-system, more particularly to a kind of electric contact-system of double break point travelling contact, category
In low-voltage circuit breaker, especially moulded case circuit breaker (MCCB) technical field.
Background technology
There are the more advantages of MCCB than single moving contact, such as short circuit breaking performance using the MCCB of double break point travelling contact
It is very high, with very high current limiting capacity.Many more concern double breaking points movable contact systems of enterprise are in high short circuit current flow in industry
Under reprimand open the design of clamping mechanism, such as Chinese patent CN102386029B discloses a kind of double break contact of breaker of plastic casing
Rotating shaft system, Chinese patent CN1596454A disclose a kind of low-voltage circuit breaker, Chinese patent CN200710040348.3 and disclosed
A kind of circuit breaker rotating dual-breakpoint contact system and its rotor etc., few documents are referred to connects on double break point travelling contact two ends
Touch pressure balances sex chromosome mosaicism and its solution.
Chinese patent CN200810040543.0 discloses a kind of revolving double breakpoints structure of breaker of plastic casing, using dynamic
Angle has reached partial equilibrium between contact center of rotation designs " mounting hole " and optimizes " mounting hole ".But counterbalance effect also has
Wait to improve.
Utility model content
How the technical problems to be solved in the utility model is ensured in the inconsistent situation of double break point travelling contact two ends scaling loss
The lower balance for still ensureing two ends contact.
In order to solve the above-mentioned technical problem, the technical solution of the utility model is to provide a kind of electric contact-system, its feature
It is：Including insulation rotor, two static contacts are centrosymmetric setting outside insulation rotor, and moving contact passes through insulation rotor,
And two movable contacts at moving contact two ends correspond to the stationary contact of two static contacts respectively；Connecting rod is in insulation rotor, moving contact
Symmetrical centre and connecting rod rivet centrally through central shaft；Connecting rod is respectively arranged at two ends with a hanging scroll, moving contact two ends with two
Connected respectively by a spring between hanging scroll；V-shaped groove is provided with correspondence hanging scroll two ends on insulation rotor, hanging scroll two ends are located at corresponding
V-shaped groove in and slide and couple with an inclined plane of V-shaped groove.
Preferably, the insulation rotor is hollow cylindrical structure, and moving contact passes radially through insulation rotor.
It is highly preferred that being equipped with the symmetrically arranged axial direction that is used on the insulation rotor on bottom surface connects drive mechanism
Connecting hole.
Preferably, the moving contact, connecting rod can rotate around central shaft.
Preferably, the connecting rod center is provided with the centre bore for being used for passing through for the central shaft；The connecting rod two ends difference
Groove provided with one for being passed through for the hanging scroll.
Preferably, V-shaped groove bottom rounding.
Preferably, it is described to set the direction parallel with static contact as X-direction, then slide the V-shaped groove inclined plane coupled with hanging scroll
(32) angle with X-direction is 90 ° ± 15 °.
Preferably, the moving contact, connecting rod, hanging scroll, spring are formed along the floating in the tangential direction of V-shaped groove inclined plane
System, with balance capacity of self-regulation.
It is highly preferred that in the presence of drive mechanism, when insulation rotor is rotated counterclockwise, two of moving contact two ends are dynamic tactile
Point is contacted with the stationary contact of two static contacts, and contact pressure F1 is produced between stationary contact and movable contact, is touched in stationary contact with dynamic
Contact pressure F2, F1=F2 are produced between point；In the presence of drive mechanism, when insulation rotor is rotated clockwise, moving contact two
Two movable contacts at end are separated with the stationary contact of two static contacts, reach the effect of cut-out electric current and isolation.
Further, when occur unilateral asymmetrical wear when, floating system can along V-shaped groove inclined plane tangential direction from
It is dynamic to be moved to equilbrium position, the contact at moving contact two ends is reached balance.
The device that the utility model is provided overcomes the deficiencies in the prior art, simple in construction, it can be ensured that in double break crawl
Still ensure the balance of two ends contact in the case that contact two ends scaling loss is inconsistent, it is ensured that the reliability of contact, reduction
Precision and difficulty needed for manufacture, while also having level of competitiveness in cost.
Brief description of the drawings
The electric contact-system schematic diagram that Fig. 1 provides for the present embodiment；
Fig. 2 is bar linkage structure schematic diagram；
Schematic diagram when Fig. 3 is the sound contact separation of electric contact-system；
Fig. 4 is due to foozle and the unilateral asymmetrical wear W schematic diagrames of unbalanced scaling loss generation；
Fig. 5 is automatically adjusted to schematic diagram at 0.5W for electric contact-system；
Fig. 6 forms new balance schematic diagram for electric contact-system.
Embodiment
With reference to specific embodiment, the utility model is expanded on further.It should be understood that these embodiments are merely to illustrate this
Utility model rather than limitation scope of the present utility model.In addition, it is to be understood that reading the content of the utility model instruction
Afterwards, those skilled in the art can make various changes or modifications to the utility model, and these equivalent form of values equally fall within this Shen
Please appended claims limited range.
The electric contact-system schematic diagram that Fig. 1 provides for the present embodiment, described electric contact-system 100 is by insulation rotor 3, dynamic
Contact 2, connecting rod 5, spring 4, central shaft 6, hanging scroll 7 etc. are constituted.
Insulation rotor 3 is hollow cylindrical structure, and two static contacts 1,1 ' are centrosymmetric outside insulation rotor 3 and set
Put, moving contact 2 passes radially through insulation rotor 3, two movable contacts 20,20 ' at the two ends of moving contact 2 correspond to two static contacts respectively
1st, 1 ' stationary contact 11,11 '.Connecting rod 5 in the insulation rotor 3, the symmetrical centre of moving contact 2 and connecting rod 5 in
Heart axle 6 is riveted, and moving contact 2, connecting rod 5 can rotate around central shaft 6.With reference to Fig. 2, the center of connecting rod 5 is provided with centre bore 51, for supplying
Central shaft 6 is passed through；The two ends of connecting rod 5 have in a groove 52, two grooves 52 and are respectively provided with a hanging scroll 7.The one end of moving contact 2 with
Connected between one of hanging scroll 7 by a spring 4, pass through another spring between the other end of contact 2 and another hanging scroll 7
4 connections.The V-shaped groove of bottom rounding is provided with insulation rotor 3 at correspondence hanging scroll 7 two ends, the two ends of hanging scroll 7 are located at corresponding V-arrangement
Slide in groove and with the inclined plane 32 of V-shaped groove and couple.
Symmetrically arranged two holes 31 are provided with insulation rotor 3 on bottom surface, for axially connecting drive mechanism.Driving
In the presence of motivation structure, when rotating counterclockwise insulation rotor 3, two movable contacts 20,20 ' at the two ends of moving contact 2 and two it is quiet
The stationary contact 11,11 ' of contact is contacted, and contact pressure F1 is produced between stationary contact 11 and movable contact 20, in stationary contact 11 ' and dynamic
Contact pressure F2, F1=F2 are produced between contact 20 '.In the presence of drive mechanism, when rotating clockwise insulation rotor 3,
Two movable contacts 20,20 ' at the two ends of moving contact 2 are separated with the stationary contact 11,11 ' of two static contacts, reach cut-out electric current and every
From effect, as shown in Figure 3.
Due to that can not be avoided that there is foozle, and the movable contact of moving contact with the stationary contact of static contact when separating
Electric arc is inevitably generated, the scaling loss of sound silver point is caused.In actually used, this scaling loss can not possibly reach that unanimously this is just
The problem of causing so-called unbalanced scaling loss.
Above-mentioned foozle and unbalanced scaling loss can theoretically be simplified to Fig. 4 institutes representation model, i.e.,：Electric contact-system
100 are still arranged on symmetrical centre, only in the Y direction unilateral asymmetrical wear W of stationary contact 11 '.If doing the condition
Electric contact-system 100 can reach the balance of two ends contact again by internal self-control, then it is believed that this adjust
Section is effective.
According to theory mechanics analysis, the motion of object can be divided into translational motion, rotary motion and translation and rotation in plane
These three forms of the combination of motion, wherein the combination of translation and rotary motion is defined as " translation ", and " translation " can be decomposed
For translation+rotation.
Connecting rod 5 is coupled with the center of rotation of moving contact 2；The one end of spring 4 is coupled with moving contact 2, other end and the coupling of hanging scroll 7
Close；Hanging scroll 7 is coupled with connecting rod 5；Moving contact 2, connecting rod 5, hanging scroll 7, spring 4 is thusly-formed to be formed along V-shaped groove inclined plane 32
Floating system in tangential direction, reaches balance capacity of self-regulation.
If the direction parallel with stationary contact head plane is X-direction, then the V-shaped groove inclined plane 32 coupled and X side are slided with hanging scroll 7
To angle be 90 ° ± 15 °, preferably 90 °.
As shown in figure 4, when occurring unilateral asymmetrical wear W, at this moment only occurring contact pressure F1, in the anti-of F1 power
Under effect, the system that moving contact 2, connecting rod 5, spring 4, central shaft 6, hanging scroll 7 are constituted can be tilted along the V-shaped groove of insulation rotor 3
The tangential direction in face 32 is moved to 0.5W positions, and the elongation of spring 4 is changed into L2 from L1, as shown in figure 5, then moving contact 2 exists
New center of rotation O ' places rotate counterclockwise to dynamic/static contact and contacted again, the new contact pressure F 1 ' of generation and F2 ', and F1 '
=F2 ', F1 ' with F1 difference very little, set up new balance, as shown in Figure 6.
Claims (7)
1. a kind of electric contact-system, it is characterised in that：Including insulation rotor (3), two static contacts (1,1 ') are in insulation rotor (3)
Outside is centrosymmetric setting, and moving contact (2) passes through insulation rotor (3), and moving contact (2) two ends two movable contacts (20,
20 ') stationary contact (11,11 ') of two static contacts (1,1 ') is corresponded to respectively；Connecting rod (5) is in insulation rotor (3), moving contact
(2) symmetrical centre and connecting rod (5) are riveted centrally through central shaft (6)；Connecting rod (5) is respectively arranged at two ends with a hanging scroll (7), moves
It is connected respectively by a spring (4) between contact (2) two ends and two hanging scrolls (7)；Correspondence hanging scroll (7) two on insulation rotor (3)
V-shaped groove is provided with end, hanging scroll (7) two ends are coupled in corresponding V-shaped groove and with an inclined plane (32) slip of V-shaped groove.
2. a kind of electric contact-system as claimed in claim 1, it is characterised in that：The insulation rotor (3) is hollow cylinder
Structure, moving contact (2) passes radially through insulation rotor (3).
3. a kind of electric contact-system as claimed in claim 2, it is characterised in that：On the insulation rotor (3) on bottom surface
Provided with the symmetrically arranged connecting hole (31) for being used to axially connect drive mechanism.
4. a kind of electric contact-system as claimed in claim 1, it is characterised in that：The moving contact (2), connecting rod (5) can be around
Central shaft (6) rotates.
5. a kind of electric contact-system as claimed in claim 1, it is characterised in that：Connecting rod (5) center, which is provided with, to be used to supply institute
State the centre bore (51) that central shaft (6) is passed through；The connecting rod (5) be respectively arranged at two ends with one be used for for the hanging scroll (7) pass through
Groove (52).
6. a kind of electric contact-system as claimed in claim 1, it is characterised in that：V-shaped groove bottom rounding.
7. a kind of electric contact-system as claimed in claim 1, it is characterised in that：If the direction parallel with static contact is X-direction,
The angle that the V-shaped groove inclined plane (32) coupled and X-direction are then slided with hanging scroll (7) is 90 ° ± 15 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621311141.6U CN206331990U (en) | 2016-12-01 | 2016-12-01 | Electric contact-system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621311141.6U CN206331990U (en) | 2016-12-01 | 2016-12-01 | Electric contact-system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206331990U true CN206331990U (en) | 2017-07-14 |
Family
ID=59288977
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621311141.6U Withdrawn - After Issue CN206331990U (en) | 2016-12-01 | 2016-12-01 | Electric contact-system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206331990U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601564A (en) * | 2016-12-01 | 2017-04-26 | 上海电器科学研究所（集团）有限公司 | Electric contact system |
-
2016
- 2016-12-01 CN CN201621311141.6U patent/CN206331990U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106601564A (en) * | 2016-12-01 | 2017-04-26 | 上海电器科学研究所（集团）有限公司 | Electric contact system |
| CN106601564B (en) * | 2016-12-01 | 2018-08-17 | 上海电器科学研究所（集团）有限公司 | A kind of electric contact-system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20170714 Effective date of abandoning: 20180817 |
|
| AV01 | Patent right actively abandoned |