CN204178938U - It is a kind of that have can the electro-pneumatic contact in automatic-rotating contact face - Google Patents
It is a kind of that have can the electro-pneumatic contact in automatic-rotating contact face Download PDFInfo
- Publication number
- CN204178938U CN204178938U CN201420736505.XU CN201420736505U CN204178938U CN 204178938 U CN204178938 U CN 204178938U CN 201420736505 U CN201420736505 U CN 201420736505U CN 204178938 U CN204178938 U CN 204178938U
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- contact
- movable part
- strutting piece
- fixture
- fixed
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Abstract
The utility model proposes that a kind of have can the electro-pneumatic contact in automatic-rotating contact face, belong to electric switch technical field.By upper and lower two panels fixture, strutting piece is fixed on centre, movable part connects together with fixture by fixed axis, forms semi-cylindrical contact-making surface between movable part and strutting piece, and forms the contact-making surface of plane between fixed contact.When fixed contact thickness is different, movable part automatic rotation adjusting angle, make it to be always between strutting piece between Cylindrical Surfaces Contact and fixed contact and be always plane contact, thus greatly increase the effective contact area between dynamic/static contact, the generation of contact heating burnout phenomenon can be prevented.Movable part can dismounting and change separately, and convenience easy to maintenance, reduces maintenance cost, is conducive to power supply of resuming production rapidly.The utility model has the plurality of advantages such as structure is simple, with low cost, fail safe is good, reliability is high, technique is simple, can be widely used in isolating switch, pincerlike fixture and withdrawable circuit breaker etc. electrically and in measuring equipment.
Description
Technical field
The utility model relates to a kind of contact of electrical switch, and particularly a kind of have can the electro-pneumatic contact in automatic-rotating contact face.Belong to electric switch technical field.
Background technology
The pincerlike fixture etc. of plug-pull type breaker, isolating switch, electric equipment, because itself does not possess arc-suppression function, the more catastrophe failure of being all strictly on guard against its heating during use and causing thus, as arcing, ablation, contact local melting welding etc.Current electro-pneumatic contact is all overall structure, and because the fixed contact thickness that will connect is different, moving contact and fixed contact contact portion generally adopt arcuate structure, therefore can only keep the contact-making surface only having a line between two kinds of contacts, easily heating and generation electric arc.
The application technology in this field still cannot solve the reason such as mechanical oscillation, contact arcing ablation and caused contact position temperature to raise present stage.Domestic very rare about patent in this respect at present, Chinese patent " the bridge-type contact device for universal circuit breaker drawer seat " (application number: 201320543033.1) proposition bridge-type contact substitutes traditional contact of breaker, mechanism is complicated, although part solves the serious problem of mechanical wear, but it is limited and to the adaptive problem of different-thickness fixed contact fundamentally to solve contact area, and the contact position oxidation caused thus, contact local melting welding, produce the spark even problem such as arc discharge, its fail safe, reliability and durability all have much room for improvement.
Summary of the invention
In order to overcome the deficiencies in the prior art, the utility model provides that a kind of have can the electro-pneumatic contact in automatic-rotating contact face, traditional linear contact lay is become face contact, increases the effective contact area between dynamic/static contact, effectively prevent contact from generating heat.Meanwhile, adopt simple exquisite structural design to reduce manufacturing cost, simplify production technology, increase the replaceability of equipment, convenient for maintaining.
The utility model solves the technical scheme that its technical problem adopts:
Described a kind of have can the electro-pneumatic contact in automatic-rotating contact face, and moving contact comprises movable part (1), strutting piece (2), fixture (3), fixed axis (4); Movable part (1) and fixture (3) have axis hole (5), and movable part (1), through axis hole (5), connects together with fixture (3) by fixed axis (4); It is semicircle cylinder that movable part (1) connects the side of strutting piece, and the vertical section of corresponding strutting piece (2) also has semi-circular recesses, identical with the semicylindrical portions radius of movable part (1), and closely agrees with the semicircle cylinder of movable part (1) and contact; The opposite side of movable part (1) is plane, with fixed contact (6) close contact; Fixture (3) is divided into upper and lower two panels, by strutting piece (2) fixed clamp in centre.
When clamping static contact (6), movable part (1) can be different according to the thickness of fixed contact (6), rotate to an angle, keep its planar side to have good face to contact with fixed contact (6) around fixed axis (4) is adaptive.Semicylindrical portions then by movable part (1) between movable part (1) and strutting piece (2) is connected with the semi-cylindrical recesses intimate surface contact of strutting piece (2).Adopt this kind of structure, greatly increase the effective contact area between dynamic/static contact, prevent the generation of contact fever phenomenon.
The axis hole (5) of the movable part (1) of described moving contact is opened at semi-cylindrical home position, and the radius of the radius ratio fixed axis (4) of its axis hole (5) is bigger.Axis hole (5) is opened at semi-cylindrical home position, then the rotation of movable part (1) is carried out around the center of circle, to ensure that with the semi-cylindrical recesses surface of strutting piece (2) be rotating contact always; The radius of axis hole (5) the radius ratio fixed axis (4) of movable part (1) is bigger, then avoid a little bias due to processing technology, cause movable part (1) be fixed axle (4) restriction, and cannot with the semi-cylindrical recesses intimate surface contact of strutting piece (2).
Described strutting piece (2) is identical with fixture (3) upper end shape, is arc, then, when inserting fixed contact (6), the arc of upper end plays guide effect, is convenient to insert.After fixed contact (6) inserts completely, movable part (1) outline protrudes from strutting piece (2) and fixture (3), avoids interference movable part (1) and contacts with the face of fixed contact (6).In addition, movable part (1) and the contact-making surface side of fixed contact (6), near fixed contact (6) direction of insertion, also need to make oblique line or arc, insert to guide fixed contact (6).
The strutting piece (2) of described moving contact comprises the identical sheet metal of one or more pieces structures, is stacked form during assembling by the sheet metal that multi-disc is above-mentioned, according to the difference of capacity, the sheet metal of varying number can be adopted to stack, thus simplified manufacturing technique; But movable part (1) is as a whole, according to the difference of capacity, need the design different size of processing and thickness.In addition, when the sheet metal of strutting piece (2) stacks, in the middle of every two panels, can gap be left, the palisade space of formation rule, be conducive to contact heat radiation.
Described movable part (1) and fixture (3) leave gap between two panels up and down, to make movable part (1) free to rotate, be convenient to the varied in thickness adapting to fixed contact (6); Fixed axis (4) is detachable, then when movable part (1) occurs hidden danger or damages, only need lay down fixed axis (4) can take out movable part (1), adopts spare part to replace, do not need to affect moving contact other parts, easy to maintenance, be conducive to power supply of resuming production rapidly.
Compared with prior art, the utility model tool has the following advantages:
Strutting piece adopts movable part, can be different according to the thickness of fixed contact, angle is adjusted adaptively by the rotation of movable part, make to be always Cylindrical Surfaces Contact between movable part and strutting piece, between movable part and fixed contact, to be always plane contact, the whole through-flow loop of moving contact does not have bottleneck, greatly increase the effective contact area between dynamic/static contact, prevent the generation of contact heating burnout phenomenon.
Realize by the quantity superposing strutting piece the object changing moving contact discharge capacity, reduce manufacturing cost, simplify production technology.Movable part can carry out dismounting and change separately, and easy to maintenance, simple and fast, reduces maintenance cost, and is conducive to power supply of resuming production rapidly.
Accompanying drawing explanation
Fig. 1: moving contact overall structure figure of the present utility model.
Fig. 2: moving contact of the present utility model inserts the schematic diagram after fixed contact.
Fig. 3: traditional moving contact inserts the schematic diagram after fixed contact.
Fig. 4: the utility model adopts the four stacked moving contact end views added.
In figure: 1-movable part, 2-strutting piece, 3-fixture, 4-fixed axis, 5-axis hole, 6-fixed contact.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
As shown in Figure 1, moving contact comprises movable part (1), strutting piece (2), fixture (3), fixed axis (4).Movable part (1) and fixture (3) have axis hole (5), and movable part (1), through axis hole (5), connects together with fixture (3) by fixed axis (4).The combined shaped that movable part (1) is semi-cylindrical and rectangle, also can be semi-cylindrical and leg-of-mutton combined shaped; Strutting piece (2) has semi-cylindrical recesses, identical with the semicylindrical portions radius of movable part (1), closely agrees with contact.The rectangular side of movable part (1) forms face closely with fixed contact (6) and contacts.Fixture (3) is divided into upper and lower two panels, by strutting piece (2) fixed clamp in centre.Clear the fixture (3) of bottom being done section process to indicate in figure, the strutting piece blocked (2) having been come out, and indicate with shade in the drawings by it.
The axis hole (5) of movable part (1) is opened at semi-cylindrical home position, and the radius of the radius ratio fixed axis (4) of its axis hole (5) is bigger.The axis hole (5) of movable part (1) is opened at semi-cylindrical home position, then the rotation of movable part (1) is carried out around the center of circle, to ensure the semi-cylindrical recesses intimate surface contact with strutting piece (2).The radius of axis hole (5) the radius ratio fixed axis (4) of movable part (1) is bigger, then avoid a little bias due to processing technology, cause movable part (1) be fixed axle (4) restriction, and cannot with the semi-cylindrical recesses intimate surface contact of strutting piece (2).
As shown in Figure 2, strutting piece (2) is wherein identical with fixture (3) upper end shape, is arc.When inserting fixed contact, guide effect is played in strutting piece (2) upper end, does camber and is convenient to insert.After insertion fixed contact, when contacting with fixed contact (6), movable part (1) outline protrudes from strutting piece (2) and fixture (3), ensures that strutting piece (2) disengages with fixed contact (6), it also avoid fully contacting of strutting piece (2) interfering activity part (1) and fixed contact (6).
Fig. 3 is the schematic diagram after traditional moving contact structure inserts fixed contact, can find out compared with the moving contact structure of the present utility model of Fig. 2, on moving contact of the present utility model, movable part (1) can be different according to the thickness of fixed contact (6), automatic rotation certain angle, all the time the contact-making surface of a plane is ensured with it, instead of linear contact lay, effectively add flow area.
Fig. 4 is the schematic diagram that multiple strutting piece (2) stacks rear formation moving contact, moving contact is stacked by multi-disc strutting piece (2), adopts two panels fixture (3) to fix, when the sheet metal of strutting piece (2) stacks up and down, can gap be left in the middle of every two panels, be conducive to contact heat radiation.Movable part (1) is an entirety, is arranged in the middle of two panels fixture (3) through axis hole (5) by fixed axis (4), and can be freely movable, and when needing to change, fixed axis (4) of only need dismantling, just can take out movable part (1).
The foregoing is only better embodiment of the present utility model; not in order to limit the utility model; all within spirit of the present utility model and principle, any amendment done, equivalent replacement, improvement etc., all should be included within protection range of the present utility model.
Claims (5)
1. having can the electro-pneumatic contact in automatic-rotating contact face, it is characterized in that: moving contact comprises movable part (1), strutting piece (2), fixture (3), fixed axis (4); Movable part (1) and fixture (3) have axis hole (5), and movable part (1), through axis hole (5), connects together with fixture (3) by fixed axis (4); The side that movable part (1) connects strutting piece (2) is semicircle cylinder, and corresponding strutting piece (2) also has semi-circular recesses, identical with the semicylindrical portions radius of movable part (1), and closely agrees with contact; The opposite side of movable part (1) is plane, with fixed contact (6) close contact; Fixture (3) is divided into upper and lower two panels, by strutting piece (2) fixed clamp in centre.
2. according to claim 1 a kind of have can the electro-pneumatic contact in automatic-rotating contact face, and it is characterized in that: the axis hole (5) of movable part (1) is opened at semi-cylindrical home position, the radius of the radius ratio fixed axis (4) of its axis hole (5) is large.
3. according to claim 1 a kind of have can the electro-pneumatic contact in automatic-rotating contact face, it is characterized in that: strutting piece (2) is identical with fixture (3) upper end shape, is arc; When inserting fixed contact (6), movable part (1) protrudes from strutting piece (2) and fixture (3), only has movable part (1) to contact with fixed contact (6).
4. according to claim 1 a kind of have can the electro-pneumatic contact in automatic-rotating contact face, it is characterized in that: strutting piece (2) comprises the identical sheet metal of one or more pieces structures, is stacked form during assembling by the sheet metal that multi-disc is above-mentioned.
5. according to claim 1 a kind of have can the electro-pneumatic contact in automatic-rotating contact face, it is characterized in that: movable part (1) and fixture (3) leave gap between two panels up and down, fixed axis (4) is detachable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736505.XU CN204178938U (en) | 2014-12-01 | 2014-12-01 | It is a kind of that have can the electro-pneumatic contact in automatic-rotating contact face |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420736505.XU CN204178938U (en) | 2014-12-01 | 2014-12-01 | It is a kind of that have can the electro-pneumatic contact in automatic-rotating contact face |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204178938U true CN204178938U (en) | 2015-02-25 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420736505.XU Withdrawn - After Issue CN204178938U (en) | 2014-12-01 | 2014-12-01 | It is a kind of that have can the electro-pneumatic contact in automatic-rotating contact face |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204178938U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377047A (en) * | 2014-12-01 | 2015-02-25 | 哈尔滨理工大学 | Electrical moving contact structure capable of automatically adjusting contact-surface angle |
| CN110116244A (en) * | 2019-05-08 | 2019-08-13 | 梁锦 | A kind of magnetic force tapping guide device |
-
2014
- 2014-12-01 CN CN201420736505.XU patent/CN204178938U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104377047A (en) * | 2014-12-01 | 2015-02-25 | 哈尔滨理工大学 | Electrical moving contact structure capable of automatically adjusting contact-surface angle |
| CN110116244A (en) * | 2019-05-08 | 2019-08-13 | 梁锦 | A kind of magnetic force tapping guide device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20150225 Effective date of abandoning: 20161026 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |