CN209515549U - High current contact arm - Google Patents
High current contact arm Download PDFInfo
- Publication number
- CN209515549U CN209515549U CN201822248221.7U CN201822248221U CN209515549U CN 209515549 U CN209515549 U CN 209515549U CN 201822248221 U CN201822248221 U CN 201822248221U CN 209515549 U CN209515549 U CN 209515549U
- Authority
- CN
- China
- Prior art keywords
- contact arm
- conducting ring
- high current
- utility
- circular cone
- 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 - Fee Related
Links
- 230000004308 accommodation Effects 0.000 claims abstract description 4
- 239000004020 conductor Substances 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Breakers (AREA)
Abstract
The utility model belongs to middle pressure vacuum circuit breaker field, specifically discloses a kind of high current contact arm, and including the conducting ring and contact arm matched, the inside of conducting ring is protruded on the top of contact arm；Contact arm protrudes into the part in conducting ring as circular cone shape and top is equipped with fixation hole；The part matched in conducting ring with contact arm top is hollow structure and the accommodation space for forming circular cone shape；Contact arm is affixed by bolt and conducting ring；The utility model conductor contact area is big and effectively enhances reliability.
Description
Technical field
The utility model belongs to middle pressure vacuum circuit breaker field, is related to a kind of contact arm, especially a kind of high current contact arm.
Background technique
The contact arm mounting means of breaker is all to use bolt fastening conducting ring and contact arm at present, and traditional overlapping mode is all
Fastening of the plane to plane, such mounting means faying surface is small, and larger-diameter contact arm is needed just to can guarantee large current interruption
Current-carrying capacity needed for device；The requirement of high current current-carrying capacity is not can guarantee if contact arm diameter is small；Heavy current breaker touching simultaneously
Arm is difficult in parallel to fasten two face paste conjunctions again when assembling contact arm, will cause conducting ring mounting surface so all than heavier
Poor contact is obtained with contact arm face, resistance can be made to increase, generates heat, leaves accident potential.
Utility model content
The technical problems to be solved in the utility model is in view of the deficiencies of the prior art, to propose that a kind of conductor contact area is big
And the high current contact arm of effectively enhancing reliability.
The technical problems to be solved in the utility model is achieved through the following technical solutions, and a kind of high current contact arm includes
The inside of conducting ring is protruded on the top of the conducting ring and contact arm matched, contact arm；It is circular cone that contact arm, which protrudes into the part in conducting ring,
Mesa-shaped and top are equipped with fixation hole；The part matched in conducting ring with contact arm top is hollow structure and forms circular cone shape
Accommodation space；Contact arm is affixed by bolt and conducting ring.
Preferably, the conical surface at the top of contact arm and conducting ring inner wall tight fit.
Preferably, the top of contact arm and conducting ring inner wall clearance fit.
Preferably, contact arm is hollow structure.
Compared with prior art, the utility model has the following beneficial effects: solving the problems, such as that minor diameter contact arm current-carrying capacity is lesser,
The reliability that high current contact arm installs conductive face contact can be improved；The contact arm connection type of the utility model can greatly increase by two
Contact area between conductor, the structure of the conical surface can assembly self-adjusting to best fit state.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model；
Fig. 2 is the structural schematic diagram of conducting ring in the utility model；
Fig. 3 is the structural schematic diagram of contact arm in the utility model.
Wherein: 1, conducting ring；2, bolt；3, contact arm.
Specific embodiment
A kind of high current contact arm, as shown in Figure 1-3, include the conducting ring 1 and contact arm 3 matched, the top of contact arm 3 is protruded into
The inside of conducting ring 1；Contact arm 3 protrudes into the part in conducting ring 1 as circular cone shape and top is equipped with fixation hole；In conducting ring 1 with
The part that 3 top of contact arm matches is hollow structure and the accommodation space for forming circular cone shape；Contact arm 3 passes through bolt 2 and conduction
Ring is affixed.
The conical surface and 1 inner wall tight fit of conducting ring at 3 top of contact arm, the top of contact arm 3 and 1 inner wall clearance fit of conducting ring,
Contact arm 3 is hollow structure.
It when the contact arm 3 is installed, is fastened by bolt 2, the conical surface of contact arm 3 is bonded with the conical surface jam-packed of conducting ring 1, completed
The installation of contact arm 3；When dismantling contact arm 3, first the bolt of M12 is dismantled, the screw buckle on contact arm 3 is M18, and conducting ring
Screw buckle on 1 is M12, then the bolt by fastening M18 can eject contact arm, completes contact arm 3 and dismantles.
The utility model discloses a kind of high current contact arm, solves the problems, such as that minor diameter contact arm current-carrying capacity is lesser, can improve
High current contact arm installs the reliability of conductive face contact；The contact arm connection type of the utility model can greatly increase by two conductors it
Between contact area, the structure of the conical surface can assembly self-adjusting to best fit state.
Claims (4)
1. a kind of high current contact arm, it is characterised in that: including the conducting ring and contact arm matched, conducting ring is protruded on the top of contact arm
Inside；Contact arm protrudes into the part in conducting ring as circular cone shape and top is equipped with fixation hole；In conducting ring with contact arm top phase
The part of cooperation is hollow structure and the accommodation space for forming circular cone shape；Contact arm is affixed by bolt and conducting ring.
2. high current contact arm according to claim 1, it is characterised in that: the conical surface and conducting ring inner wall at the top of the contact arm
Tight fit.
3. high current contact arm according to claim 2, it is characterised in that: the top and conducting ring inner wall gap of the contact arm
Cooperation.
4. high current contact arm according to claim 3, it is characterised in that: the contact arm is hollow structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248221.7U CN209515549U (en) | 2018-12-29 | 2018-12-29 | High current contact arm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822248221.7U CN209515549U (en) | 2018-12-29 | 2018-12-29 | High current contact arm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209515549U true CN209515549U (en) | 2019-10-18 |
Family
ID=68198458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822248221.7U Expired - Fee Related CN209515549U (en) | 2018-12-29 | 2018-12-29 | High current contact arm |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209515549U (en) |
-
2018
- 2018-12-29 CN CN201822248221.7U patent/CN209515549U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |