CN202332741U - Sliding contact structure realizing automatic adjustment on pressure of contact for low-pressure contactor - Google Patents
Sliding contact structure realizing automatic adjustment on pressure of contact for low-pressure contactor Download PDFInfo
- Publication number
- CN202332741U CN202332741U CN2011205118919U CN201120511891U CN202332741U CN 202332741 U CN202332741 U CN 202332741U CN 2011205118919 U CN2011205118919 U CN 2011205118919U CN 201120511891 U CN201120511891 U CN 201120511891U CN 202332741 U CN202332741 U CN 202332741U
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- CN
- China
- Prior art keywords
- contact unit
- contact
- unit
- pressure
- 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- Withdrawn - After Issue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 relates to a contact structure, in particular relates to a sliding contact structure realizing automatic adjustment on pressure of a contact for a low-pressure contactor. The sliding contact structure comprises a first static contact unit (401), a second static contact unit (402), a first movable contact unit (301), a second movable contact unit (302), an elastic mechanism (1), a conductive connecting rod (2) and an insulating rod (5). The elastic mechanism (1) is fixedly connected between the end parts of the first movable contact unit (301) and the second movable contact unit (302); the both ends of the conductive connecting rod (2) are connected with the first movable contact unit (301) and the second movable contact unit (302) through shafts; the insulating rod (5) is vertically and fixedly connected with the conductive connecting rod (2); and a compression spring structure is adopted as the elastic mechanism (1). The sliding contact structure provided by the utility model has high switching-on/off voltage grade, and has the function of automatically adjusting pressure between movable contacts and the static contacts so as to realize effective and compact contact between the contacts. The service life of the contacts can be prolonged by virtue of the self-cleaning function of the surfaces of the contacts.
Description
Technical field
the utility model relates to a kind of structure of contact terminal, relates in particular to the self-adjusting lv contactor sliding contact of a kind of employing contact pressure structure.
Background technology
contactor is a kind of control apparatus of automation.Contactor is mainly used in frequent connection or disjunction AC and DC circuit, and it is big to have a control capacity, but remote operation cooperates relay can realize fixed cycle operator, chain control, various quantitative controls and decompression and under-voltage protection.
existing A.C. contactor that is used for producing comprises a pair of contact, and it is fixed to be arranged to fixed contact usually, and moving contact is at the on-position of conducting electric current and cut off between the scram position of electric current and move back and forth with respect to fixed contact.On the one hand, repeatedly cut-offfing and closure, do not having electric current or alive contact surface because machinery or electric effect are are progressively worn and torn.On the other hand, there is contact resistance in the contact contact position, and in normal connection work and breaking current moment, contact can produce localized hyperthermia, after the long-term use, and the contact surface oxidation.Above-mentioned reason makes between the contact and can not fully well contact, and along with the contact resistance between the contact progressively increases, exposure level progressively reduces, and influences the useful life and the breaking capacity of contactor.The A.C. contactor of current use, its electric life often is far smaller than mechanical endurance.
The utility model content
the utility model is intended to overcome the weak point of prior art and provides a kind of volume little; Cost is low, the contact good conductivity, and the drop-out voltage grade is high; Has pressure between the automatic adjustment dynamic/static contact; Realize effectively closely contacting function between the contact,, reach and improve the contact self-adjusting lv contactor sliding contact of the employing contact pressure structure in useful life through the contact surface self-cleaning function.
For solving the problems of the technologies described above, the utility model is to realize like this
.
The self-adjusting lv contactor sliding contact of contact pressure structure is adopted in
, and it comprises the first fixed contact unit, the second fixed contact unit, the first moving contact unit, the second moving contact unit, elastic mechanism, conductive link and insulating bar; Said elastic mechanism is fixed between the first moving contact unit and the end, the second moving contact unit; The two ends of said conductive link and the first moving contact unit and the second moving contact unit are coupling; Said insulating bar is vertical with conductive link affixed.
as a kind of preferred version, the utility model elastic mechanism can adopt the compression spring structure.
as another kind of preferred version, the front end of the utility model first moving contact unit and the second moving contact unit adopts and upwarps structure.
further, the utility model first fixed contact unit and the second fixed contact unit can adopt U type structure.
in addition, there are differential seat angle in the said first fixed contact unit of the utility model and the first moving contact unit and the second fixed contact unit and the second moving contact unit in the elevation angle of disjunction position.
the utlity model has rational in infrastructure, compactness, and volume is little, and cost is low, and the drop-out voltage grade is high, characteristics such as balance double break contact pressure and contact self-cleaning function.
compared with prior art; The utility model advantage is: owing to connected by the compression spring between two moving contacts, and moving contact and conductor connecting rod be for being rotationally connected, so the pressure between the dynamic/static contact has self-adjusting function; Slide relative between the dynamic/static contact; Both helped to clean the contact surface oxide, and can make again between the contact to combine more closely, and helped to reduce contact resistance simultaneously and improve contact conductivity.
Description of drawings
are described further the utility model below in conjunction with accompanying drawing and embodiment.
Fig. 1 is the overall structure sketch map of the utility model.
Among
figure: 1, elastic mechanism; 2, conductive link; 301, the first moving contact unit; 302, the second moving contact unit; 401, the first fixed contact unit; 402, the second fixed contact unit; 5, insulating bar.
Embodiment
are as shown in Figure 1; Adopt the self-adjusting lv contactor sliding contact of contact pressure structure, it comprises the first fixed contact unit 401, the second fixed contact unit 402, the first moving contact unit 301, the second moving contact unit 302, elastic mechanism 1, conductive link 2 and insulating bar 5; Said elastic mechanism 1 is fixed between the first moving contact unit 301 and 302 ends, the second moving contact unit; The two ends of said conductive link 2 and the first moving contact unit 301 and the second moving contact unit 302 are coupling; Said insulating bar 5 is vertical affixed with conductive link 2.
the utility model elastic mechanism 1 can adopt the compression spring structure.
The front end of
the utility model first moving contact unit 301 and the second moving contact unit 302 can adopt and upwarp structure.
the utility model first fixed contact unit 401 and the second fixed contact unit 402 can adopt U type structure.
There are differential seat angle in the said first fixed contact unit 401 of
the utility model and the first moving contact unit 301 and the second fixed contact unit 402 and the second moving contact unit 302 in the elevation angle of disjunction position.
In
instance; Because the first fixed contact unit 401 and the first moving contact unit 301 and the second fixed contact unit 402 and the second moving contact unit 302; There is differential seat angle in the elevation angle in the disjunction position; From the process that touches complete closure, slide relative between the contact contact-making surface, clean surface salient point and oxide.Compression spring 1 can be adjusted both sides moving contact pressure automatically, guarantees that contact force is even between the double break point.After the complete closure of contact, electric current flows into from an end fixed contact, through moving contact, conductive link, moving contact, flows out from other end fixed contact at last, realizes the conducting in whole loop.
the utility model first moving contact unit 301, said both sides and the second moving contact unit, 302 front ends upwarp respectively; As arc leading angle; The first fixed contact unit 401 and the second fixed contact unit 402 are set to U type structure and fix through bolt and contactor shell, and when breaking arc, dynamic and static contact acting in conjunction produces and makes the outwards electric power of motion of electric arc; Blow-out on arc leading angle ensures the contact life-span.
the utility model mainly solves contactor after breaking current repeatedly; The contact surface wearing and tearing cause the problem that interrupting performance descends; Provide and have between a kind of dynamic/static contact that pressure is adjusted automatically and slide relative is the new type contactor structure of contact terminal of innovative point; Realize the contact surface automatically cleaning, improve the contact purpose in useful life thereby reach.
the utility model is made up of compression spring, conductor connecting rod, the first fixed contact unit, the second fixed contact unit, the first moving contact unit, the second moving contact unit, insulating bar.Between the first moving contact unit and the second moving contact unit and the conductive link for being rotationally connected; Two moving contacts on the conductive link (the first moving contact unit and the second moving contact unit) are through the sliding contact of insulating bar and interlock realization of compression spring and fixed contact (the first fixed contact unit, the second fixed contact unit); Be connected through bolt between conductive link and the insulating bar, fixed contact (the first fixed contact unit, the second fixed contact unit) is fixed on the contactor shell.
the utility model moving contact has the elevation angle of certain angle.Fixed contact (first fixed contact unit 401, the second fixed contact unit 402) is fixed on the contactor insulation crust.Fixed contact (first fixed contact unit 401, the second fixed contact unit 402) also has certain elevation angle.In closing course; Linkage spurs insulating bar 5 downwards; Insulating bar 5 drives conductive link 2 and moving contacts (the first moving contact unit 301 and the second moving contact unit 302) thereof downwards, is tending towards closed with fixed contact (first fixed contact unit 401, the second fixed contact unit 402).The elevation angle is different between the dynamic/static contact, therefore, from the process that touches complete closure, produces slide relative between two contacts.Slide relative between this contact had both helped to clean the contact surface oxide, can make again between the contact to combine more closely, helped to reduce contact resistance simultaneously and improved contact conductivity.After complete closure, electric current flows into from an end fixed contact, through moving contact, conductor connecting rod, compression spring, moving contact, flows out from other end fixed contact at last, realizes conducting.The moving contact (the first moving contact unit 301 and the second moving contact unit 302) that outage back insulating bar drives on conductive link 2 and the conductive link 2 resets with compression spring 1, accomplishes the separating brake action, has realized cut-offfing of circuit.
The above is merely the preferred embodiment of the utility model
, is not limited to the utility model, and for a person skilled in the art, the utility model can have various changes and variation.All within the spirit and principle of the utility model, any modification of being done, be equal to replacement, improvement etc., all should be included within the protection range of the utility model.
Claims (5)
1. adopt the self-adjusting lv contactor sliding contact of contact pressure structure; It is characterized in that, comprise the first fixed contact unit (401), the second fixed contact unit (402), the first moving contact unit (301), the second moving contact unit (302), elastic mechanism (1), conductive link (2) and insulating bar (5); Said elastic mechanism (1) is fixed between the first moving contact unit (301) and the end, the second moving contact unit (302); The two ends of said conductive link (2) and the first moving contact unit (301) and the second moving contact unit (302) are coupling; Said insulating bar (5) is vertical affixed with conductive link (2).
2. the self-adjusting lv contactor sliding contact of employing contact pressure according to claim 1 structure is characterized in that: elastic mechanism (1) adopts the compression spring structure.
3. the self-adjusting lv contactor sliding contact of employing contact pressure according to claim 2 structure is characterized in that: the front end of the first moving contact unit (301) and the second moving contact unit (302) adopts and upwarps structure.
4. the self-adjusting lv contactor sliding contact of employing contact pressure according to claim 3 structure is characterized in that: the first fixed contact unit (401) and the second fixed contact unit (402) adopt U type structure.
5. according to the self-adjusting lv contactor sliding contact of the arbitrary described employing contact pressure structure of claim 1～4; It is characterized in that: there are differential seat angle in the said first fixed contact unit (401) and the first moving contact unit (301) and the second fixed contact unit (402) and the second moving contact unit (302) in the elevation angle of disjunction position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205118919U CN202332741U (en) | 2011-12-09 | 2011-12-09 | Sliding contact structure realizing automatic adjustment on pressure of contact for low-pressure contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011205118919U CN202332741U (en) | 2011-12-09 | 2011-12-09 | Sliding contact structure realizing automatic adjustment on pressure of contact for low-pressure contactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202332741U true CN202332741U (en) | 2012-07-11 |
Family
ID=46444713
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011205118919U Withdrawn - After Issue CN202332741U (en) | 2011-12-09 | 2011-12-09 | Sliding contact structure realizing automatic adjustment on pressure of contact for low-pressure contactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202332741U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522267A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Low pressure contactor sliding contact structure employing contact pressure automatic adjustment |
| WO2017059821A1 (en) * | 2015-10-10 | 2017-04-13 | 首瑞（北京）投资管理集团有限公司 | Contact system and contactor comprising contact system |
| CN110660607A (en) * | 2019-09-30 | 2020-01-07 | 顾天琪 | Bridge type contact load switch and smart electric meter |
-
2011
- 2011-12-09 CN CN2011205118919U patent/CN202332741U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102522267A (en) * | 2011-12-09 | 2012-06-27 | 沈阳工业大学 | Low pressure contactor sliding contact structure employing contact pressure automatic adjustment |
| CN102522267B (en) * | 2011-12-09 | 2014-08-06 | 沈阳工业大学 | Low pressure contactor sliding contact structure employing contact pressure automatic adjustment |
| WO2017059821A1 (en) * | 2015-10-10 | 2017-04-13 | 首瑞（北京）投资管理集团有限公司 | Contact system and contactor comprising contact system |
| CN110660607A (en) * | 2019-09-30 | 2020-01-07 | 顾天琪 | Bridge type contact load switch and smart electric meter |
| CN110660607B (en) * | 2019-09-30 | 2021-06-25 | 顾天琪 | Bridge type contact load switch and smart electric meter |
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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: 20120711 Effective date of abandoning: 20140806 |
|
| RGAV | Abandon patent right to avoid regrant |