CN203415485U - Double contact of vacuum arc chute - Google Patents
Double contact of vacuum arc chute Download PDFInfo
- Publication number
- CN203415485U CN203415485U CN201320344678.2U CN201320344678U CN203415485U CN 203415485 U CN203415485 U CN 203415485U CN 201320344678 U CN201320344678 U CN 201320344678U CN 203415485 U CN203415485 U CN 203415485U
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- CN
- China
- Prior art keywords
- contact
- main
- auxiliary
- contacts
- seat
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- 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- Withdrawn - After Issue
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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a double contact of a vacuum arc chute. The double contact is characterized by being provided with two contact bodies of the same structures, wherein each contact body mainly comprises a main contact seat, a contact limiting block, a guide cylinder, a pressure spring, an auxiliary contact seat, a main contact and an auxiliary contact; and respective main contacts and auxiliary contacts of the two contact bodies of the same structures are opposite to each other, and can be absorbed or separated. In a switch-on/off process of the contacts of the vacuum arc chute, the main contacts are not ablated and abraded, the contact resistance between the contacts is low, and the resistance value is less than 2 micro-ohm so that the resistance of a main loop of a circuit breaker can be reduced, the heating amount of the main loop of the circuit breaker is lowered, the application performance of the vacuum circuit breaker is enhanced, and the service lifetime of the vacuum circuit breaker is extended.
Description
Technical field
The utility model belongs to electrical engineering technical field, particularly relates to the improvement of vacuum arc-extinguishing chamber contact.
Background technology
In power circuit, the break-make of vacuum circuit-breaker closes, cut-offs realization by vacuum arc-extinguishing chamber contact.Current vacuum interrupter product on the market, its design and manufacturing process thereof be comparative maturity, but goes back existent defect.During normal operation circuit, vacuum arc-extinguishing chamber contact flows through load current, when fault or stoppage in transit, vacuum arc-extinguishing chamber contact cut-offs fault or load current, along with increasing of vacuum arc-extinguishing chamber contact open and close times, and contact ablation, wearing and tearing, aging serious, contact Contact resistance increase.Circuit breaker major loop caloric value increases, and vacuum arc extinguish chamber housing epoxy resin heat dispersion is poor, and the high heat of generation has a strong impact on serviceability and the useful life of vacuum circuit-breaker and parts thereof.The problem existing for current vacuum arc-extinguishing chamber contact and the negative effect bringing thereof, development of new vacuum arc-extinguishing chamber contact is very important.
Summary of the invention
The purpose of this utility model is to manufacture and design the two contacts of a kind of vacuum interrupter, to overcome current vacuum interrupter product, contact flows through load current, when fault or stoppage in transit, vacuum arc-extinguishing chamber contact cut-offs fault or load current, along with increasing of vacuum arc-extinguishing chamber contact open and close times, contact ablation, wearing and tearing, aging serious, contact Contact resistance increase.Circuit breaker major loop caloric value increases, and vacuum arc extinguish chamber housing epoxy resin heat dispersion is poor, and the high heat of generation has a strong impact on the serviceability of vacuum circuit-breaker and parts thereof and the shortcoming in useful life.
The purpose of this utility model reaches like this: the two contacts of vacuum interrupter, it is characterized by: there are two contact bodies that structure is identical, described contact body mainly comprises that one end is fixed with the main contact seat 4 of main contact 6, be arranged in main contact seat 4 and the contact guide vane end stop 1 being connected with guide cylinder 2, be arranged at the guide cylinder 2 that in main contact seat 4, also two ends are connected with stage clip 3 with guide vane end stop 1 respectively, be arranged at the stage clip 3 that in main contact seat 4, also two ends are connected with main contact seat 4 with guide cylinder 2 respectively, be arranged at the auxiliary contact base 5 that the interior also one end of main contact seat 4 is fixed with auxiliary contact 7, be fixed on the main contact 6 of main contact seat 4, be fixed on the auxiliary contact 7 of auxiliary contact base 5, the described identical contact body of two structures, main contact 6 separately between two in opposite directions also can adhesive or separated with auxiliary contact 7.
When the two contacts of vacuum interrupter normally move, main contact conducting load current; When vacuum arc-extinguishing chamber contact cut-offs, the first disjunction of main contact, auxiliary contact drop-out current; When vacuum arc-extinguishing chamber contact closes, auxiliary contact first closes, and after main contact, closes.
Main contact 6 adopts silver oxide to make.
Auxiliary contact 7 adopts chromiumcopper to make, and copper weight of chromium ratio respectively accounts for 50 percent.
Take the utility model of above measure, at vacuum arc-extinguishing chamber contact, close, in interrupting process, contact is not ablated, wearing and tearing, contact Contact resistance is little, its resistance is less than 2 micro-ohms, can reduce circuit breaker major loop resistance, reduce the caloric value of circuit breaker major loop, improve serviceability and the useful life of vacuum circuit-breaker.
Below the utility model is described in further detail by reference to the accompanying drawings again.
Accompanying drawing explanation
Accompanying drawing 1 is the structural profile schematic diagram of a contact body of the utility model (embodiment).
Description of reference numerals: contact guide vane end stop 1, guide cylinder 2, stage clip 3, main contact seat 4, auxiliary contact base 5, main contact 6, auxiliary contact 7.
Embodiment
Accompanying drawing 1 has provided the structural profile schematic diagram of a contact body of the utility model embodiment.Referring to accompanying drawing 1, can know the structure that the utility model is inner concrete.
Contact body mainly comprises that one end is fixed with the main contact seat 4 of main contact 6, be arranged in main contact seat 4 and the contact guide vane end stop 1 being connected with guide cylinder 2, be arranged at the guide cylinder 2 that in main contact seat 4, also two ends are connected with stage clip 3 with contact guide vane end stop 1 respectively, be arranged at the stage clip 3 that in main contact seat 4, also two ends are connected with main contact seat 4 with guide cylinder 2 respectively, be arranged at the auxiliary contact base 5 that the interior also one end of main contact seat 4 is fixed with auxiliary contact 7, be fixed on the main contact 6 of main contact seat 4, be fixed on the auxiliary contact 7 of auxiliary contact base 5.Contact body is except main contact 6 and auxiliary contact 7 use metal materials are made, and miscellaneous part is made with insulating material.Main contact 6 and auxiliary contact 7 are done circlewise.
The utlity model has two contact bodies that structure is identical.Two contact bodies that structure is identical, main contact 6 separately between two in opposite directions also can adhesive or separated with auxiliary contact 7.One of them contact body can be fixed as fixed contact body, and another contact body is that moving contact body moves under the effect of external force, main contact 6 separately and the also adhesive or separated in opposite directions between two of auxiliary contact 7.
Main contact 6 of the present utility model adopts silver oxide to make; Auxiliary contact 7 adopts chromiumcopper to make, and copper weight of chromium ratio respectively accounts for 50 percent.
Claims (3)
1. two contacts of vacuum interrupter, it is characterized by: there are two contact bodies that structure is identical, described contact body mainly comprises that one end is fixed with the main contact seat (4) of main contact (6), be arranged in main contact seat (4) and the contact guide vane end stop (1) being connected with guide cylinder (2), be arranged at the guide cylinder (2) that in main contact seat (4), also two ends are connected with stage clip (3) with contact guide vane end stop (1) respectively, be arranged at the stage clip (3) that in main contact seat (4), also two ends are connected with main contact seat (4) with guide cylinder (2) respectively, be arranged at the auxiliary contact base (5) that the interior also one end of main contact seat (4) is fixed with auxiliary contact (7), be fixed on the main contact (6) of main contact seat (4), be fixed on the auxiliary contact (7) of auxiliary contact base (5), the described identical contact body of two structures, main contact separately (6) between two in opposite directions also can adhesive or separated with auxiliary contact (7).
2. the two contacts of vacuum interrupter according to claim 1, is characterized by: main contact (6) adopts silver oxide to make.
3. the two contacts of vacuum interrupter according to claim 1, is characterized by: auxiliary contact (7) adopts chromiumcopper to make.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320344678.2U CN203415485U (en) | 2013-06-17 | 2013-06-17 | Double contact of vacuum arc chute |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320344678.2U CN203415485U (en) | 2013-06-17 | 2013-06-17 | Double contact of vacuum arc chute |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203415485U true CN203415485U (en) | 2014-01-29 |
Family
ID=49978356
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320344678.2U Withdrawn - After Issue CN203415485U (en) | 2013-06-17 | 2013-06-17 | Double contact of vacuum arc chute |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203415485U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367024A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Double contact of vacuum arc extinguishing chamber |
-
2013
- 2013-06-17 CN CN201320344678.2U patent/CN203415485U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103367024A (en) * | 2013-06-17 | 2013-10-23 | 北海银河产业投资股份有限公司 | Double contact of vacuum arc extinguishing chamber |
| CN103367024B (en) * | 2013-06-17 | 2016-03-30 | 北海银河产业投资股份有限公司 | The two contact of vacuum interrupter |
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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: 20140129 Effective date of abandoning: 20160330 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |