CN205230855U - Circuit breaker contact piece - Google Patents
Circuit breaker contact piece Download PDFInfo
- Publication number
- CN205230855U CN205230855U CN201521082284.XU CN201521082284U CN205230855U CN 205230855 U CN205230855 U CN 205230855U CN 201521082284 U CN201521082284 U CN 201521082284U CN 205230855 U CN205230855 U CN 205230855U
- Authority
- CN
- China
- Prior art keywords
- contact
- site
- piece
- chip body
- circuit breaker
- 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
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Abstract
The utility model discloses a circuit breaker contact piece, contact piece one end is the strip contact, strip contact one side sets up flat contact site, the width of contact site is greater than the width of strip contact. The contact site with contact piece body integrated into one piece. The utility model discloses a set up the contact site, increased contacting area's area of contact, guarantee to keep the route state at the contact circuit. Contact site and contact piece integrated into one piece, but not link together it through traditional welding means for the contact site is more inseparable with being connected of contact piece, has reduced the contact site and has taken place from the condition that the contact piece drops. Through following the improvement on design and the forming technology, contact piece contact failure's problem has been solved.
Description
Technical field
The utility model relates to a kind of breaker assembly, and more particularly, it relates to a kind of breaker contacts sheet.
Background technology
The structure composition of circuit breaker generally comprises binding post, magnetic tripping system, hot tripping system, contact system and arc quenching system, wherein contact system is one of most important part of circuit breaker, contact system generally comprises hard-wired fixed contact and relative to the cephalomotor moving contact of stationary contact, a kind of structure commonplace is at present that moving contact is arranged in a rotary rotating shaft, when rotating shaft drives moving contact to rotate, moving contact and fixed contact can be made to close or separate, simultaneously, moving contact is arranged in rotating shaft by bearing pin, also can relative to axis of rotation.The size opening distance when dynamic/static contact disconnects directly determines the arcing length of fault current, i.e. arc resistance size, and then directly has influence on the height of circuit breaker breaking capacity.
At present, the application number on market is that the Chinese patent of CN201110262697.6 discloses a kind of moving contact of breaker, and this moving contact is rear wide front narrow laminated structure; Moving contact rear portion is provided with a U-shaped groove-like snap close point; In the middle part of moving contact, position to the rear is provided with a pivot point, and moving contact rotates with this fulcrum and realizes switching on and off of circuit breaker; A spring location points is provided with between moving contact pivot point and snap close point; Snap close point is not more than 9mm to the distance of touch spring anchor point; The distance of the contact-making surface contacted with fixed contact to moving contact through the vertical vertical line of snap close point is not more than 2.5mm.
This moving contact of breaker, although this moving contact can on the basis not changing the connecting rod operation mechanism such as handle, tripping, more large opening can be obtained by means of only parameters such as variation moving contact rotating fulcrum, contact tension spring positioning supporting points, but it is known by the accompanying drawing of above-mentioned patent, the contact that its moving contact contacts with fixed contact is only a side end of moving contact, and this contact is as the extension of moving contact, wide with moving contact, cause it and fixed contact is conflicted time contact-making surface little, easily cause loose contact.
Utility model content
For the deficiency that prior art exists, the purpose of this utility model is to provide a kind of contact reliable breaker contacts sheet.
For achieving the above object, the utility model provides following technical scheme: a kind of breaker contacts sheet, comprises contact chip body, and described contact chip body one end is strip contact, described strip contact side arranges flat contact site, and the width of described contact site is greater than the width of strip contact.
Compare traditional point cantact, the contact area being arranged so that contact of contact site becomes large, and holding circuit maintains channel status.Improve the stability of contact, reduce the bad situation of contact and occur.
Further, described contact site and described this body by integral forming of contact chip.
Contact site adopts extrusion process, directly extrusion modling on the basis of contact chip contact, is no longer linked together at two positions by welding.Integrated molding makes the connection of contact site and contact chip more tight, decreases the phenomenon come off and occurs.
Further, in the middle of described contact chip, the weld zone being used for welding lead is set.
When contact chip is fit into circuit breaker, contact chip is fixed on-board the circuit breaker by weld zone and is connected wire.
Further, described weld zone is provided with protruding anti-slip part away from contact site side.
When contact chip is welded on circuit breaker, smooth plane is unfavorable for the connection of contact chip and circuit breaker, and rough anti-slip part can make solder side more coarse, adds the effect of strong weld, makes contact chip and circuit breaker be easy to be connected.
Further, described contact chip body offers the through hole for hinged contact chip body, described through hole surrounding is provided with some circular protrusions around arrays of openings.
Circular projection makes after contact chip is connected with circuit breaker, and the gap between connecting portion is less, part interference fit, makes it connect more tight.
Accompanying drawing explanation
Fig. 1 is the vertical view of the utility model breaker contacts sheet;
Fig. 2 is the rearview of the utility model breaker contacts sheet;
Fig. 3 is the structural representation of the utility model breaker contacts sheet.
Reference numeral: 1, contact; 2, weld zone; 3, contact chip body; 11, contact site; 21, anti-slip part; 22, through hole; 23, circular protrusions.
Embodiment
Referring to accompanying drawing, the utility model is further illustrated.
A kind of breaker contacts sheet, comprise contact chip body 3, described contact chip body 3 one end is strip contact 1, and described strip contact 1 side arranges flat contact site 11, and the width of described contact site 11 is greater than the width of strip contact 1.
Compare traditional point cantact, the contact area being arranged so that contact 1 of contact site 11 becomes large, and during contact, the whole flat plane of contact site 11 can participate in connecting, and the connection of holding circuit is unobstructed.Improve the stability of contact 1, the situation reducing contact 1 loose contact occurs.
Described contact site 11 and described contact chip body 3 one-body molded.Contact site 11 small volume, welding is inconvenient.So the utility model contact site 11 adopts extrusion forming process, directly extrusion modling on the basis of contact chip body 3, forms contact site 11, is no longer linked together at two positions by welding.Integrated molding makes the connection of contact site 11 and contact chip body 3 more tight, decreases the phenomenon come off and occurs.
Described contact chip body 3 arranges the weld zone 2 being used for welding lead.Protruding anti-slip part 21 is provided with in described weld zone 2.Described contact chip body 3 offers the through hole 22 for hinged contact chip body 3, described through hole 22 surrounding is provided with some circular protrusions 23 arranged around through hole 22.
When contact chip body 3 is fit into circuit breaker, the cylinder of the corresponding circuit breaker protrusions of through hole 22 in the middle of contact chip body 3.Before welding, through hole 22 can play the effect of Primary Location contact chip body 3 position.After being welded, contact chip body 3 is hinged by through hole 22 with circuit breaker, and contact chip body 3 can rotate on-board the circuit breaker.The cylinder card of circuit breaker protrusions, in contact chip through hole 22, also can play a part Restricted Contact sheet body 3 position, ensures still to be in predeterminated position in use procedure.Circular protrusions 23 make after contact chip body 3 is connected with circuit breaker, the gap between connecting portion is less, part interference fit, makes it connect more tight.This programme is optimal case, and the position of circular protrusions 23 is not restricted to around through hole 22, and the place playing positioning action in contact chip body 3 and breaker contacts face can arrange such circular protrusions 23.
When contact chip body 3 is welded on circuit breaker, compares some the bonding strength at plane-welding position of smooth plane relative coarseness relatively low, also more easily skid in welding process.So the utility model arranges rough anti-slip part 21, arranging of anti-slip part 21 can make solder side more coarse, adds the effect of strong weld, makes contact chip body 3 and circuit breaker be easy to be connected.
The above is only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, do not departing from the some improvements and modifications under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (5)
1. a breaker contacts sheet, comprise contact chip body (3), it is characterized in that: described contact chip body (3) one end is strip contact (1), described strip contact (1) side arranges flat contact site (11), and the width of described contact site (11) is greater than the width of strip contact (1).
2. breaker contacts sheet according to claim 1, is characterized in that: described contact site (11) and described contact chip body (3) one-body molded.
3. breaker contacts sheet according to claim 1, is characterized in that: arrange the weld zone (2) being used for welding lead in the middle of described contact chip body (3).
4. breaker contacts sheet according to claim 3, is characterized in that: be provided with protruding anti-slip part (21) in described weld zone (2).
5. breaker contacts sheet according to claim 1, it is characterized in that: described contact chip body (3) offers the through hole (22) for hinged contact chip body (3), described through hole (22) surrounding is provided with some circular protrusions (23) arranged around through hole (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082284.XU CN205230855U (en) | 2015-12-22 | 2015-12-22 | Circuit breaker contact piece |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521082284.XU CN205230855U (en) | 2015-12-22 | 2015-12-22 | Circuit breaker contact piece |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205230855U true CN205230855U (en) | 2016-05-11 |
Family
ID=55905902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521082284.XU Expired - Fee Related CN205230855U (en) | 2015-12-22 | 2015-12-22 | Circuit breaker contact piece |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205230855U (en) |
-
2015
- 2015-12-22 CN CN201521082284.XU patent/CN205230855U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160511 Termination date: 20181222 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |