CN200953287Y - Self-grinding dustproof self-cleaning auxiliary contact - Google Patents
Self-grinding dustproof self-cleaning auxiliary contact Download PDFInfo
- Publication number
- CN200953287Y CN200953287Y CN 200620052538 CN200620052538U CN200953287Y CN 200953287 Y CN200953287 Y CN 200953287Y CN 200620052538 CN200620052538 CN 200620052538 CN 200620052538 U CN200620052538 U CN 200620052538U CN 200953287 Y CN200953287 Y CN 200953287Y
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- contact
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- box body
- spring
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Abstract
The utility model relates to a self-grinding, dustproof, self-cleaning auxiliary contact terminal for locomotive electric appliance, which comprises a movable and a static contact terminal, a box body, a box cover, a support plate and a spring; a lever and a reset spring are arranged in the box body, a longitudinal axis on the lever is provided with a movable contact terminal and a tilt spring in turn, the two ends of the movable contact terminal are provided with an arc projected contact respectively, the longitudinal axis of the lever and the movable contact terminal are form a crosswise structure, the tilt spring is arranged in the lower end of the box body , the upper part of the tilt spring is covered on the longitudinal axis of the lever and is contacted with the movable contact terminal, the reset spring is arranged below the lever at right side and is contacted with the lever; the two static contact terminals are arranged at the two sides of the box body to make their contact terminals keep touch with each other; the switching on and off of the movable and static contact terminals are self-grinding slant open or close structure. The contact terminal can improve the service performance of the locomotive electric appliance effectively, be adaptable for bad environment, bring down the hazard rate, eliminate the circuit visual connection problem caused by pulling arc, oxidation, dust obstruct, and lower the cost of utilization and maintenance.
Description
Technical field
The utility model relates to the dustproof auto purification type auxiliary contact of self-grind that a kind of locomotive electric apparatus is used.
Background technology
Because volume is little, compact conformation can't adopt reliable contact to grind design at present known all kinds of locomotives with auxiliary contact.In all kinds of auxiliary contacts, can be divided into sealing quick-action type, straight ejector half two big class auxiliary contacts by its working method, its characteristics separately are as follows:
One, quick-action type auxiliary contact: sealing quick-action type auxiliary contact: the type auxiliary contact complex structure, contact easy fracture, if the contact arcing phenomenon occurs when contact, the contact can not be removed automatically and be drawn trace.
Sealing " V " shape contact self-cleaning quick-action type contact: its contact shape " V " shape, though self-purification function is arranged, the type auxiliary contact contact point and arcing point because of it is easy to generate electric arc, can cause contact oxidation or burn at same position; Moving contact and fixed contact should not dispel the heat because of being semi-closed state, cause contact resistance to strengthen, and make circuit contacts bad, so be not suitable for the application to the high locomotive electric apparatus of reliability requirement.
Two, straight ejector half auxiliary contact: straight ejector half back-moving spring formula auxiliary contact: the type component structure is simple, but the contact contact performance is bad, have the part contact to have the virtual connection phenomenon in the running, if the contact arc phenomenon occurs connecing when contact, the contact can not be removed automatically and be drawn trace.
Straight ejector half opening bridge chip contact auxiliary contact: the type auxiliary contact poor sealing performance, dust enter easily and are attached on the contact, easily cause the bad and contact heating of circuit contacts.
Summary of the invention
The purpose of this utility model is to overcome above-mentioned defective, provides a kind of and can solve contact self-cleaning, dustproof sand control, the good dustproof auto purification type auxiliary contact of self-grind of contact.
The technical solution of the utility model is: a kind of self-grind auto purification type auxiliary contact that prevents dust, it comprises moving contact, fixed contact, box body, lid, support plate and spring, be provided with lever and back-moving spring in the box body, the longitudinal axis of its lever is provided with moving contact and tilting spring successively, the longitudinal axis of lever and moving contact constitute the crosswise structure, respectively there is a circular arc convex shape contact at the moving contact two ends, tilting spring bottom is arranged on the lower end of box body, tilting spring top is sleeved on the longitudinal axis of lever and with moving contact and touches mutually, and back-moving spring is below, lever right side is set and touches mutually with lever.The box body top is provided with support plate, support plate is provided with board component, and the support plate center is provided with pressing plate, lining, spring and feeler lever successively, and its feeler lever pocketed springs also installs with lining and pressing plate, feeler lever of its band spring is touched mutually with propping up a board component, and pressing plate touches mutually with protuberance on the lever; Two fixed contacts are the S shape, there is a circular arc convex shape contact lower surface end, fixed contact top, two fixed contacts are separately fixed at both sides, box body bottom, and the contact on its fixed contact contacts with moving contact contact on the lever, and the opening and closing mode of dynamic and static contact is the oblique opening-closing structure of self-grind.Box body and lid constitute board-like box body structure; Be that lid is that board-like lid is embedded in and constitutes the sealed type contact box on the box body.
The normality operating state of auxiliary contact of the present utility model is normally closed, contact box be designed to sealing, its good sealing property guarantees anti-dust performance effectively, the action of contact realizes under motion promotes; In the auxiliary contact closing course, after dynamic and static contact was in contact with one another, because of lever continues and will move along the operation of circular arc rail, the drive moving contact moved right and produces slippage, and the contact generation on the dynamic and static contact is ground, thereby had realized the purpose of self-grind; Because of auxiliary contact moving contact and fixed contact all are to be the circular arc convex shape, thus dust and oxide-film on can fine removal contact, and also heat dispersion is good; When contact was opened, under the promotion of lever, contact was moved to the left, and made arcing point effectively avoid the contact point of contact operate as normal, thereby guaranteed that the working point is not by electric arc burn and oxidation.Contact contact simultaneously is for opening gradually or close gradually, and the be not hit effect of power of contact guarantees that effectively contact does not rupture.Auxiliary contact not only can solve dustproof problem, but also can carry out automatic grinding, thereby makes circuit contacts good, ensures locomotive operation safety.
The utility model is rational in infrastructure, installs simple and conveniently, stable, can effectively improve the serviceability of locomotive electric apparatus, can adapt to adverse circumstances, applicable to the locomotive electric apparatus high to reliability requirement.It efficiently solves dustproof, contact self-cleaning and arcing to the problem of contact influence, reduces the failure rate of locomotive electric apparatus at running, eliminates the phenomenon of locomotive electric apparatus contact virtual connection, has reduced the operation and maintenance cost of auxiliary contact.
Description of drawings
The accompanying drawing self-grind self-cleaning type auxiliary contact structural representation that prevents dust.
Embodiment
Referring to accompanying drawing, a kind of self-grind auto purification type auxiliary contact that prevents dust, it comprises moving contact 4, fixed contact 5, box body 6, lid 9, support plate 10 and spring, it is characterized in that it being to be provided with lever 7 and back-moving spring 18 in the box body 6, longitudinal axis on its lever 7 is provided with moving contact 4 and tilting spring 3 successively, the longitudinal axis of lever 7 and moving contact 4 constitute the crosswise structure, respectively there is a circular arc convex shape contact at moving contact 4 two ends, tilting spring 3 tops, lower end that tilting spring 3 bottoms are arranged on box body 6 are sleeved on the longitudinal axis of lever 7 and with moving contact 4 and touch mutually, and back-moving spring 18 is below, lever 7 right sides is set and touches mutually with lever 7.Box body 6 tops are provided with support plate 10 by nut 17, pad 16 and screw 15, support plate 10 is provided with a board component 14, support plate 10 centers are provided with pressing plate 8, lining 11, spring 12 and feeler lever 13 successively, its feeler lever 13 pocketed springs 12 also install with lining 11 and pressing plate 8, feeler lever 8 of its band spring 12 is touched mutually with propping up a board component 14, and pressing plate 8 touches mutually with protuberance on the lever 7; Two fixed contacts 5 are the S shape, there is a circular arc convex shape contact lower surface end, fixed contact 5 top, two fixed contacts 5 are to be separately fixed at both sides, box body 6 bottom by screw 1 and nut 2, and the contact on its fixed contact 5 contacts with moving contact 4 contacts on the lever 7; Moving contact 4 is oblique opening-closing structure with the opening and closing mode of fixed contact 5.That is to say the mode of self-cleaning: the folding mode of auxiliary dynamic and static contact is oblique folding.Box body 6 and lid 9 constitute board-like box body structure, and promptly lid 9 is board-like lid, is embedded on the box body 6.
Work of the present utility model is as follows: opening procedure: by an active force on the locomotive electric apparatus, make it to back down the auxiliary contact box, promptly propping up board component 14 promotes feeler lever 13 and moves downwards under the effect of external force, its tailgate 8 touches mutually with lever 7, its lever 7 is moved down, and promptly promoting lever 7 is that circular motion is done in the center of circle with the fulcrum of lever; When lever 7 moved to certain position, lever backed down moving contact 4, and lever 7 continues to move to extreme position under the effect of feeler lever power, the large opening of opening for dynamic and static contact this moment, and back-moving spring 3,12,18 is in the compressive state of maximum.
Closing course: make former the board component that has backed down auxiliary contact leave the high workload position of this mechanism by the service position (active force disappearance) that changes other mechanism, so under the effect of back-moving spring, moving contact 4 moves to fixed contact 5 directions, when it moves to a certain degree, dynamic and static contact closure.At this moment, back-moving spring 3 has been in normal condition, and back-moving spring 12,18 will continue action, thereby drive lever 7 continuation is that the circular motion promotion is done in the center of circle with the balance pivot, moving contact is realized the grinding of dynamic and static contact to grinding the direction motion, thereby reaches the function of grinding dedusting.
Claims (2)
1, the dustproof auto purification type auxiliary contact of a kind of self-grind, it comprises moving contact (4), fixed contact (5), box body (6), lid (9), support plate (10) and spring, it is characterized in that:
Be provided with lever (7) and back-moving spring (18) in A, the described box body (6), longitudinal axis on its lever (7) is provided with moving contact (4) and tilting spring (3) successively, the longitudinal axis of lever (7) and moving contact (4) constitute the crosswise structure, respectively there is a circular arc convex shape contact at moving contact (4) two ends, tilting spring (3) bottom is arranged on the lower end of box body (6), tilting spring (3) top is sleeved on the longitudinal axis of lever (7) and with moving contact (4) and touches mutually, and back-moving spring (18) is below, lever (7) right side is set and touches mutually with lever (7);
B, described box body (6) top are provided with support plate (10), support plate (10) is provided with a board component (14), support plate (10) center is provided with pressing plate (8), lining (11), spring (12) and feeler lever (13) successively, its feeler lever (13) pocketed springs (12) also installs with lining (11) and pressing plate (8), feeler lever (8) of its band spring (12) is touched mutually with propping up a board component (14), and pressing plate (8) touches mutually with protuberance on the lever (7);
C, described two fixed contacts (5) are the S shape, there is a circular arc convex shape contact lower surface end, fixed contact (5) top, two fixed contacts (5) are separately fixed at box body (6) both sides, bottom, contact on its fixed contact (5) contacts with moving contact (4) contact on the lever (7), and moving contact (4) is the oblique opening-closing structure of self-grind with the opening and closing mode of fixed contact (5).
2, the dustproof auto purification type auxiliary contact of self-grind according to claim 1 is characterized in that described box body (6) and lid (9) constitute board-like box body structure, and promptly lid (9) upward constitutes the sealed type contact box for board-like lid is embedded in box body (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052538 CN200953287Y (en) | 2006-10-20 | 2006-10-20 | Self-grinding dustproof self-cleaning auxiliary contact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620052538 CN200953287Y (en) | 2006-10-20 | 2006-10-20 | Self-grinding dustproof self-cleaning auxiliary contact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200953287Y true CN200953287Y (en) | 2007-09-26 |
Family
ID=38811589
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620052538 Expired - Fee Related CN200953287Y (en) | 2006-10-20 | 2006-10-20 | Self-grinding dustproof self-cleaning auxiliary contact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200953287Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104011817A (en) * | 2012-03-21 | 2014-08-27 | 西门子公司 | Contact slider unit for switching unit, in particular for circuit breaker |
| US9312084B2 (en) | 2012-03-21 | 2016-04-12 | Siemens Aktiengesellschaft | Contact slider unit for a switching unit, in particular for a circuit breaker |
-
2006
- 2006-10-20 CN CN 200620052538 patent/CN200953287Y/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104011817A (en) * | 2012-03-21 | 2014-08-27 | 西门子公司 | Contact slider unit for switching unit, in particular for circuit breaker |
| US9312084B2 (en) | 2012-03-21 | 2016-04-12 | Siemens Aktiengesellschaft | Contact slider unit for a switching unit, in particular for a circuit breaker |
| US9362067B2 (en) | 2012-03-21 | 2016-06-07 | Siemens Aktiengesellschaft | Contact slider unit for a switching unit, in particular for a circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20090109 Address after: Tian Xin hi tech Industrial Park, Hunan, Zhuzhou Province, China: 412001 Patentee after: Zhuzhou Weisen Auto Parts Co., Ltd. Address before: Tian Xin hi tech Industrial Park, Hunan, Zhuzhou Province, China: 412001 Patentee before: Tianxin Railway Electric Locomotive Fatting Plant, Zhuzhou City |
|
| ASS | Succession or assignment of patent right |
Owner name: ZHUZHOU WEISEN LOCOMOTIVE ASSESSORIES CO., LTD. Free format text: FORMER OWNER: ZHUZHOU CITY TIANXIN RAILWAY POWER LOCOMOTIVE ASSESSORIES FACTORY Effective date: 20090109 |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20070926 Termination date: 20101020 |