CN203774101U - Auxiliary switch with cleaning function - Google Patents
Auxiliary switch with cleaning function Download PDFInfo
- Publication number
- CN203774101U CN203774101U CN201320853514.2U CN201320853514U CN203774101U CN 203774101 U CN203774101 U CN 203774101U CN 201320853514 U CN201320853514 U CN 201320853514U CN 203774101 U CN203774101 U CN 203774101U
- Authority
- CN
- China
- Prior art keywords
- contact
- moving
- push rod
- auxiliary switch
- cleaning function
- 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 - Lifetime
Links
- 238000004140 cleaning Methods 0.000 title claims abstract description 15
- 239000012535 impurity Substances 0.000 abstract description 4
- 238000010891 electric arc Methods 0.000 abstract description 3
- 239000000463 material Substances 0.000 abstract description 3
- 238000003763 carbonization Methods 0.000 description 4
- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 239000004568 cement Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009776 industrial production Methods 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 239000013528 metallic particle Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Push-Button Switches (AREA)
- Contacts (AREA)
Abstract
The utility model discloses an auxiliary switch with a cleaning function. The auxiliary switch includes a push rod provided with a plurality of slide holes, a push rod reset spring that sleeves a lower part of the push rod, two moving contact bridges arranged in the slide holes, contact reset springs arranged in the slide holes and located between the two moving contact bridges, moving contacts arranged on two ends of the moving contact bridges, and fixed contacts having fixed contacts matched with the moving contacts. Each moving contact is provided with a protruding hemispherical boss in the center of a contact surface where the moving contact is electrically connected with a corresponding fixed contact. According to the auxiliary switch with the cleaning function, the center of the contact surface of each moving contact is provided with the protruding hemispherical boss, when the moving contact contacts with the fixed contact, the hemispherical boss can contact with the fixed contact at the earliest time, an electric arc that is generated can be used to oxidize impurities and a carbide part on contact materials and dross is blown away, thereby improving contact performance of the moving contact and the fixed contact, and ensuring stable and reliable service lives of the moving contact and the fixed contact.
Description
Technical field
The utility model belongs to low tension switch structure-design technique field, is specifically related to a kind of auxiliary switch with cleaning function.
Background technology
At present, low pressure stroke switch is widely used in the industries such as metallurgy, mine, cement, chemical industry, electric power, and travel switch can be divided into several structures such as Direct Action Type, roller type, inching and composite type.For the Direct Action Type travel switch of selling on market, ubiquity contact is few, changing-over speed is slow, the shortcoming such as sturdy and durable not, thereby make the application scenario of switch and performance be subject to great restriction, and contact is in long-term use, there will be following problem: the too high or overload of frequency of operation, contact surface is got an electric shock and have metallic particles projection or foreign matter, and then generation stuck phenomenon, because the reasons such as the carbonization of contact surface contact cause the loose contact of contact, the normal work of travel switch will be had a strong impact on as cleared up not in time, affect normal industrial production.
Utility model content
The purpose of this utility model is to provide a kind of above-mentioned drawback that solves, automatically the impurity on clear contact and the auxiliary switch with cleaning function of carbonization.
The technical scheme that realizes the utility model object is: a kind of auxiliary switch with cleaning function, comprise be provided with multiple slide openings push rod, be set in push rod back-moving spring on push rod bottom, be arranged on two movable contact bridges in each slide opening, be arranged in each slide opening and the contact back-moving spring between two movable contact bridges, be arranged on moving contact on each movable contact bridge two ends and with the suitable fixed contact with fixed contact of each moving contact; Each moving contact is center for the contact-making surface that is electrically connected with a corresponding moving contact at it, is provided with an outstanding hemisphere boss.
In such scheme, the maximum outside diameter of described hemisphere boss is 0.05mm to 0.5mm.
In such scheme, the height of described hemisphere boss is 0.05mm to 0.5mm.
In such scheme, be arranged in two movable contact bridges of each slide opening, the center of first movable contact bridge is provided with the conical positive stop lug boss protruding towards another movable contact bridge place direction, and the center of another movable contact bridge is fixed with a keeper; The cylindrical positioning boss that described keeper is provided with annular groove and is positioned at annular groove center and protrudes towards first movable contact bridge place direction; The one end that is arranged in the contact back-moving spring of this slide opening is set on conical positive stop lug boss, and is connected on first movable contact bridge, and the other end is set on cylindrical positioning boss, and is connected on keeper.
In such scheme, push rod is provided with two slide openings, and push rod back-moving spring is arranged on the below of these two slide openings.
In such scheme, the bottom of push rod is rotated and is provided with roller, and push rod back-moving spring is arranged between slide opening and roller.
In such scheme, the basic configuration of the contact-making surface of described each moving contact is circular cone shape.
The utility model arranges an outstanding hemisphere boss in the center of moving contact contact-making surface, when this hemisphere boss gets an electric shock contact in sound, can touch the earliest fixed contact, utilize the electric arc producing and to blow dregs open the impurity on contact material and carbonization partial oxidation, thereby improve the contact performance of dynamic/static contact, ensure the useful life that it is reliable and stable.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the present utility model;
Fig. 2 is a kind of side-looking structural representation that is provided with the movable contact bridge of moving contact shown in Fig. 1 in auxiliary switch;
Fig. 3 is a kind of perspective view of moving contact in auxiliary switch described in Fig. 1;
A kind of perspective view of Fig. 4 when to be moving contact shown in Fig. 3 observe from another angle;
Fig. 5 is a kind of plan structure schematic diagram of moving contact shown in Fig. 3;
Fig. 6 is a kind of side-looking structural representation of moving contact shown in Fig. 3.
Embodiment
(embodiment 1)
The present embodiment is a kind of auxiliary switch with cleaning function, comprise be provided with two slide openings 11 push rod 1, be set in push rod back-moving spring 2 on push rod bottom, be arranged on two movable contact bridges 3 in each slide opening, be arranged in each slide opening and the contact back-moving spring 4 between two movable contact bridges, be arranged on moving contact 5 on each movable contact bridge two ends and with the suitable fixed contact with fixed contact 61 6 of each moving contact; Each moving contact is center for the contact-making surface 52 that is electrically connected with a corresponding moving contact at it, is provided with an outstanding hemisphere boss 51.Push rod back-moving spring is arranged on the below of described slide opening.The basic configuration of the contact-making surface 52 of described each moving contact is circular cone shape.
The maximum outside diameter of described hemisphere boss is 0.05mm to 0.5mm, and the height of described hemisphere boss is 0.05mm to 0.5mm.
Be arranged in two movable contact bridges of each slide opening, the center of first movable contact bridge is provided with the conical positive stop lug boss 31 protruding towards another movable contact bridge place direction, and the center of another movable contact bridge is fixed with a keeper 7; The cylindrical positioning boss 72 that described keeper is provided with annular groove 71 and is positioned at annular groove center and protrudes towards first movable contact bridge place direction; The one end that is arranged in the contact back-moving spring of this slide opening is set on conical positive stop lug boss, and is connected on first movable contact bridge, and the other end is set on cylindrical positioning boss, and is connected on keeper.
The bottom of push rod is rotated and is provided with roller 8, and push rod back-moving spring is arranged between slide opening and roller.
The present embodiment arranges an outstanding hemisphere boss in the center of moving contact contact-making surface 52, when this hemisphere boss gets an electric shock contact in sound, can touch the earliest fixed contact, utilize the electric arc producing and to blow dregs open the impurity on contact material and carbonization partial oxidation, thereby improve the contact performance of dynamic/static contact, ensure the useful life that it is reliable and stable.
Obviously, above-described embodiment of the present utility model is only for the utility model example is clearly described, and is not the restriction to execution mode of the present utility model.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description.Here without also giving exhaustive to all execution modes.And these belong to apparent variation or the variation that connotation of the present utility model extends out and still belong to protection range of the present utility model.
Claims (7)
1. the auxiliary switch with cleaning function, comprise be provided with multiple slide openings (11) push rod (1), be set in push rod back-moving spring (2) on push rod bottom, be arranged on two movable contact bridges (3) in each slide opening, be arranged in each slide opening and the contact back-moving spring (4) between two movable contact bridges, be arranged on moving contact (5) on each movable contact bridge two ends and with the suitable fixed contact with fixed contact (61) (6) of each moving contact; It is characterized in that: each moving contact is center for the contact-making surface (52) that is electrically connected with a corresponding moving contact at it, is provided with an outstanding hemisphere boss (51).
2. the auxiliary switch with cleaning function according to claim 1, is characterized in that: the maximum outside diameter of described hemisphere boss is 0.05mm to 0.5mm.
3. the auxiliary switch with cleaning function according to claim 1, is characterized in that: the height of described hemisphere boss is 0.05mm to 0.5mm.
4. the auxiliary switch with cleaning function according to claim 1, it is characterized in that: two movable contact bridges that are arranged in each slide opening, the center of first movable contact bridge is provided with the conical positive stop lug boss (31) protruding towards another movable contact bridge place direction, and the center of another movable contact bridge is fixed with a keeper (7); The cylindrical positioning boss (72) that described keeper is provided with annular groove (71) and is positioned at annular groove center and protrudes towards first movable contact bridge place direction; The one end that is arranged in the contact back-moving spring of this slide opening is set on conical positive stop lug boss, and is connected on first movable contact bridge, and the other end is set on cylindrical positioning boss, and is connected on keeper.
5. the auxiliary switch with cleaning function according to claim 1, is characterized in that: push rod is provided with two slide openings, and push rod back-moving spring is arranged on the below of these two slide openings.
6. the auxiliary switch with cleaning function according to claim 5, is characterized in that: the bottom of push rod is rotated and is provided with roller (8), and push rod back-moving spring is arranged between slide opening and roller.
7. the auxiliary switch with cleaning function according to claim 1, is characterized in that: the basic configuration of the contact-making surface (52) of described each moving contact is circular cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853514.2U CN203774101U (en) | 2013-12-20 | 2013-12-20 | Auxiliary switch with cleaning function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320853514.2U CN203774101U (en) | 2013-12-20 | 2013-12-20 | Auxiliary switch with cleaning function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774101U true CN203774101U (en) | 2014-08-13 |
Family
ID=51291259
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320853514.2U Expired - Lifetime CN203774101U (en) | 2013-12-20 | 2013-12-20 | Auxiliary switch with cleaning function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774101U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977100A (en) * | 2016-06-30 | 2016-09-28 | 株洲中车时代电气股份有限公司 | Control method and device for DC contactor for rail transit |
| CN112635266A (en) * | 2020-12-28 | 2021-04-09 | 安徽鼎业电气有限公司 | Emergency closing device of permanent magnet intelligent circuit breaker for 10KV power distribution line of power grid |
-
2013
- 2013-12-20 CN CN201320853514.2U patent/CN203774101U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105977100A (en) * | 2016-06-30 | 2016-09-28 | 株洲中车时代电气股份有限公司 | Control method and device for DC contactor for rail transit |
| CN105977100B (en) * | 2016-06-30 | 2018-08-21 | 株洲中车时代电气股份有限公司 | A kind of control method and device of rail traffic D.C. contactor |
| CN112635266A (en) * | 2020-12-28 | 2021-04-09 | 安徽鼎业电气有限公司 | Emergency closing device of permanent magnet intelligent circuit breaker for 10KV power distribution line of power grid |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: Shen Jun Document name: Invalidation Request Acceptance Notice |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140813 |
|
| DD01 | Delivery of document by public notice | ||
| DD01 | Delivery of document by public notice |
Addressee: WENZHOU YONGQI ELECTRICAL TECHNOLOGY CO.,LTD. Person in charge of patents Document name: Notice of Termination of Patent Rights |