CN207731840U - A kind of arc striking piece for breaker - Google Patents
A kind of arc striking piece for breaker Download PDFInfo
- Publication number
- CN207731840U CN207731840U CN201721921502.3U CN201721921502U CN207731840U CN 207731840 U CN207731840 U CN 207731840U CN 201721921502 U CN201721921502 U CN 201721921502U CN 207731840 U CN207731840 U CN 207731840U
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- CN
- China
- Prior art keywords
- gauge
- snap
- hole
- arc striking
- striking piece
- 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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- Arc-Extinguishing Devices That Are Switches (AREA)
Abstract
The utility model discloses a kind of arc striking pieces for breaker, its drip irrigation device includes the interconnecting piece for being contacted with static contact, the interconnecting piece is connected with the guide portion for being contacted with arc extinguishing grid pieces, the guide portion both sides are respectively connected with flexible clamping portion, the clamping portion includes the snap-gauge being connect with guide portion and the elastic plate that is fixedly connected with snap-gauge, and the elastic plate collectively forms V-type with snap-gauge.After clamping portion is caught in the corresponding slot of Shell of circuit breaker, elastic plate deforms upon and close towards snap-gauge, so that between elastic plate and slot inner wall, there are interaction forces, clamping portion is so as to being firmly stuck in slot, so that the position of guide portion is less likely to occur to deviate, the trouble of arc striking piece short circuit is avoided.The process for installing arc striking piece simultaneously is simple, time saving and energy saving.
Description
Technical field
The utility model is related to breakers, more particularly to a kind of arc striking piece for breaker.
Background technology
Breaker is the electric current for referring to close, carry and cut-off under normal loop condition and can close before the deadline
Close, carry and cut-off the switching device of the electric current under abnormal loop condition.When circuit breaks down, moving contact and static contact meeting
Separation, to disconnecting circuit.But it is easy to form electric arc between contact in the two separation process.In order to reduce burning of the electric arc to contact
The space of damage and limitation electric arc extension, needs that arc striking piece and arc-chutes are arranged, to extinguish electric arc as early as possible.Breaker under normal conditions
Shell formed and for accommodating the space of arc striking piece can place arc striking piece, but without reinforcing knot between arc striking piece and shell
Structure, therefore arc striking piece is easy to deviate normal position and cause short circuit between the grid in arc striking piece and arc-extinguish chamber.
Notification number discloses a kind of arc striking piece of miniature circuit breaker for the Chinese patent of CN202487513U, including by insulating
Shell of circuit breaker made of material and the arc striking piece in shell, the shell includes lid and pedestal, the arc striking piece include
Body part, the riser portions being connect with body part, the falling portion being connect with riser portions top end, described body part one end both sides difference
Equipped with the first positioning pin, the second positioning pin, it is equipped with the first slot in pedestal, the second slot, first positioning pin are equipped in lid
Coordinate with the first slot, the second positioning pin and the second slot coordinate.The arc striking piece can be securely fixed in the shell of breaker,
And it is not easily moveable.
The arc striking piece of above-mentioned miniature circuit breaker is respectively clamped into the first slot and second by the first positioning pin, the second positioning pin
The mode of slot is relatively fixed with shell, so that arc striking piece position is not easy to deviate.If the first positioning pin, the second positioning pin
Size and corresponding first slot and the second slot it is equal in magnitude, then the first positioning pin and the second positioning pin are difficult to be caught in correspondence
Slot；If the first positioning pin and the second positioning pin are less than corresponding slot size, the position of arc striking piece is easy to loosen, to
It is be easy to cause poor contact between arc striking piece and the grid of arc-chutes, is had much room for improvement.
Utility model content
In view of the above technical defects, the purpose of this utility model is to provide a kind of arc striking piece for breaker, Neng Gouwen
Solid be caught in Shell of circuit breaker and position will not shift, avoid the trouble of arc striking piece short circuit.
To achieve the above object, the utility model provides following technical solution：
A kind of arc striking piece for breaker, includes the interconnecting piece for being contacted with static contact, and the interconnecting piece is connected with
Guide portion for being contacted with arc extinguishing grid pieces, the guide portion both sides are respectively connected with flexible clamping portion, the clamping portion
The elastic plate for including the snap-gauge being connect with guide portion and being fixedly connected with snap-gauge, the elastic plate collectively form V-type with snap-gauge.
By using above-mentioned technical proposal, after clamping portion is caught in the corresponding slot of Shell of circuit breaker, shape occurs for elastic plate
Become and it is close towards snap-gauge so that there are interaction forces between elastic plate and slot inner wall, and clamping portion is so as to firmly
It is stuck in slot, so that the position of guide portion is less likely to occur to deviate, avoids the trouble of arc striking piece short circuit.Installation is drawn simultaneously
The process of arcs is simple, time saving and energy saving.
The utility model is further arranged to：The one end of the elastic plate far from snap-gauge is bent towards snap-gauge to be arranged.
By using above-mentioned technical proposal, clamping portion is not easy to block when extracting out of corresponding slot, even if blocking, presses
Compression elasticity plate bending part, just can easily extract clamping portion.
The utility model is further arranged to：It is connected by insulation division between the guide portion and clamping portion.
By using above-mentioned technical proposal, clamping portion does not interfere with the conduction of electric arc.
The utility model is further arranged to：The side that the guide portion is used to contact with arc extinguishing grid pieces is contact surface, separately
One side is dorsal surface, and the insulation division includes connecting plate, and described connecting plate one end is adhered to dorsal surface, the other end and snap-gauge and connects
It connects, the isolation board being fixedly connected with connecting plate is provided between the snap-gauge and guide portion.
By using above-mentioned technical proposal, insulation division is connected to dorsal surface, to not interfere with arc striking piece and arc extinguishing grid pieces
Between contact.
The utility model is further arranged to：The part that the snap-gauge is connect with connecting plate is provided with card hole, the connection
Plate is provided with the connecting hole being connected to card hole, and connection strap is provided in the card hole and connecting hole.
By using above-mentioned technical proposal, by connection strap after being extracted in connecting hole, clamping portion just can be with insulated part
From so that the elastic force of clamping portion can be replaced after being deteriorated, opposite to replace entire arc striking piece, and cost substantially reduces.
The utility model is further arranged to：The one end of the card hole far from connecting hole is communicated with limit of the opening more than card hole
Position hole, is provided with the limited block being fixedly connected with connection strap in the limit hole, the one end of the connection strap far from limited block is stretched
Go out connecting hole and side is provided with through-hole, the connecting plate is glued with the fixed strip across through-hole.
By using above-mentioned technical proposal, connection strap is caught in card hole until limited block is located in limit hole, then by fixed strip
Across through-hole, snap-gauge just by the limit of limited block and fixed strip and can not with insulated part from so that clamping portion and insulation division
Between the compactness that connects increase.
The utility model is further arranged to：It is provided with chamfering at the via openings.
By using above-mentioned technical proposal, through-hole is caught in convenient for fixed strip.
The utility model is further arranged to：The card hole opening is provided with fillet.
By using above-mentioned technical proposal, card hole is caught in convenient for connection strap.
In conclusion the utility model has the advantages that：
1. the setting for passing through clamping portion so that the position of arc striking piece is less likely to occur to deviate, to avoid arc striking piece
The trouble of short circuit；
2. the setting for passing through insulation division so that clamping portion does not interfere with the conduction of electric arc.
Description of the drawings
Fig. 1 is the structural schematic diagram of embodiment；
Fig. 2 is the enlarged diagram of a-quadrant in Fig. 1；
Fig. 3 is the exploded perspective view of embodiment；
Fig. 4 is the enlarged diagram of B area in Fig. 3.
Reference sign：1, interconnecting piece；2, guide portion；21, contact surface；22, dorsal surface；3, clamping portion；31, snap-gauge；
311, card hole；312, limit hole；32, elastic plate；4, insulation division；41, connecting plate；411, connecting hole；42, isolation board；5, it connects
Item；51, through-hole；6, limited block；7, fixed strip.
Specific implementation mode
The utility model is described in further detail below in conjunction with attached drawing.
A kind of arc striking piece for breaker includes as shown in Figure 1 and Figure 2 the interconnecting piece 1 for being contacted with static contact, even
Socket part 1 is connected with the guide portion 2 for being contacted with arc extinguishing grid pieces.2 both sides of guide portion are respectively connected with flexible clamping portion 3,
Clamping portion 3 includes the snap-gauge 31 being connect with guide portion 2 and the elastic plate 32 being fixedly connected with snap-gauge 31, elastic plate 32 and snap-gauge
31 collectively form V-type.After clamping portion 3 is caught in the corresponding slot of Shell of circuit breaker, elastic plate 32 deforms upon and towards snap-gauge
31 is close so that there are interaction force between elastic plate 32 and slot inner wall, clamping portion 3 is so as to being firmly stuck in slot
It is interior, so that the position of guide portion 2 is less likely to occur to deviate, avoid the trouble of arc striking piece short circuit.Arc striking piece is installed simultaneously
Process is simple, time saving and energy saving.
As shown in Figure 1 and Figure 2, the one end of elastic plate 32 far from snap-gauge 31 bends towards snap-gauge 31 and is arranged so that clamping portion 3
It is not easy to block when extracting out of corresponding slot.Even if blocking, 32 bending part of elastic plate is pressed, it just can be easily by clamping portion 3
It extracts.It is connected by insulation division 4 between guide portion 2 and clamping portion 3 so that clamping portion 3 does not interfere with the conduction of electric arc.Guide portion
2 side for being contacted with arc extinguishing grid pieces is contact surface 21, another side is dorsal surface 22, and insulation division 4 includes connecting plate 41, even
41 one end of fishplate bar is adhered to dorsal surface 22, the other end and snap-gauge 31 connect, and is provided between snap-gauge 31 and guide portion 2 and connecting plate
41 isolation boards 42 being fixedly connected.Since insulation division 4 is connected to dorsal surface 22, insulation division 4 does not interfere with arc striking piece and goes out
Contact between arc grid.
As shown in Figure 3, Figure 4, can remove and replaced after declining for 3 elastic force of clamping portion, snap-gauge 31 with connect
The part that plate 41 connects is provided with card hole 311, and connecting plate 41 is provided with the connecting hole 411 being connected to card hole 311,311 He of card hole
Connection strap 5 is provided in connecting hole 411.By connection strap 5 after being extracted in connecting hole 411, clamping portion 3 just can be with insulation division 4
It detaches and is replaced, opposite to replace entire arc striking piece, cost substantially reduces.311 opening of card hole is provided with fillet, convenient for connecting
Narrow bars 5 are caught in card hole 311.
As shown in Figure 3, Figure 4, in order to increase the compactness connected between clamping portion 3 and insulation division 4, card hole 311 is far from even
The one end for connecing hole 411 is communicated with limit hole 312 of the opening more than card hole 311, is provided in limit hole 312 and is fixed with connection strap 5
The limited block 6 of connection.The one end of connection strap 5 far from limited block 6 stretches out connecting hole 411 and side is provided with through-hole 51, connecting plate
41 are glued with the fixed strip 7 across through-hole 51.Connection strap 5 is caught in card hole 311 until limited block 6 is located in limit hole 312, then incites somebody to action
Fixed strip 7 passes through through-hole 51, snap-gauge 31 just can not to be detached with insulation division 4 by the limit of limited block 6 and fixed strip 7 so that
The compactness connected between clamping portion 3 and insulation division 4 increases.51 opening of through-hole is provided with chamfering, is caught in convenient for fixed strip 7 logical
Hole 51.
The course of work：
When arc striking piece is installed, clamping portion 3 is caught in corresponding slot.
When dismantling clamping portion 3, first fixed strip 7 is extracted from through-hole 51, then connection strap 5 is extracted from card hole 311, most
Directly clamping portion 3 is detached with insulation division 4 afterwards.
This specific embodiment is only the explanation to the utility model, is not limitations of the present invention, ability
Field technique personnel can as needed make the present embodiment the modification of not creative contribution after reading this specification, but
As long as all being protected by Patent Law in the right of the utility model.
Claims (8)
1. a kind of arc striking piece for breaker includes the interconnecting piece (1) for being contacted with static contact, the interconnecting piece (1) is even
It is connected to the guide portion (2) for being contacted with arc extinguishing grid pieces, it is characterised in that：Guide portion (2) both sides are respectively connected with bullet
Property clamping portion (3), the clamping portion (3) include the snap-gauge (31) being connect with guide portion (2) and with snap-gauge (31) is fixed connects
The elastic plate (32) connect, the elastic plate (32) collectively form V-type with snap-gauge (31).
2. a kind of arc striking piece for breaker according to claim 1, it is characterised in that：The elastic plate (32) is separate
One end of snap-gauge (31) is bent towards snap-gauge (31) to be arranged.
3. a kind of arc striking piece for breaker according to claim 1, it is characterised in that：The guide portion (2) and card
It is connected by insulation division (4) between socket part (3).
4. a kind of arc striking piece for breaker according to claim 3, it is characterised in that：The guide portion (2) is used for
The side contacted with arc extinguishing grid pieces is contact surface (21), another side is dorsal surface (22), and the insulation division (4) includes connecting plate
(41), described connecting plate (41) one end is adhered to dorsal surface (22), the other end and snap-gauge (31) connect, and the snap-gauge (31) and draws
It leads and is provided with the isolation board (42) being fixedly connected with connecting plate (41) between portion (2).
5. a kind of arc striking piece for breaker according to claim 4, it is characterised in that：The snap-gauge (31) with connect
The part of plate (41) connection is provided with card hole (311), and the connecting plate (41) is provided with the connecting hole being connected to card hole (311)
(411), it is provided with connection strap (5) in the card hole (311) and connecting hole (411).
6. a kind of arc striking piece for breaker according to claim 5, it is characterised in that：The card hole (311) is separate
One end of connecting hole (411) is communicated with limit hole (312) of the opening more than card hole (311), is provided in the limit hole (312)
Connecting hole is stretched out in the limited block (6) being fixedly connected with connection strap (5), the one end of the connection strap (5) far from limited block (6)
(411) and side is provided with through-hole (51), and the connecting plate (41) is glued with the fixed strip (7) across through-hole (51).
7. a kind of arc striking piece for breaker according to claim 6, it is characterised in that：Through-hole (51) opening
It is provided with chamfering.
8. a kind of arc striking piece for breaker according to claim 6, it is characterised in that：Card hole (311) opening
Place is provided with fillet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721921502.3U CN207731840U (en) | 2017-12-29 | 2017-12-29 | A kind of arc striking piece for breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721921502.3U CN207731840U (en) | 2017-12-29 | 2017-12-29 | A kind of arc striking piece for breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207731840U true CN207731840U (en) | 2018-08-14 |
Family
ID=63084457
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721921502.3U Expired - Fee Related CN207731840U (en) | 2017-12-29 | 2017-12-29 | A kind of arc striking piece for breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207731840U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360698A (en) * | 2018-11-07 | 2019-02-19 | 南宁超伏电气科技有限公司 | A kind of arc-control device that nested can be mounted on insulator chain |
-
2017
- 2017-12-29 CN CN201721921502.3U patent/CN207731840U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109360698A (en) * | 2018-11-07 | 2019-02-19 | 南宁超伏电气科技有限公司 | A kind of arc-control device that nested can be mounted on insulator chain |
| CN109360698B (en) * | 2018-11-07 | 2023-10-03 | 南宁超伏电气科技有限公司 | Arc extinguishing device capable of being installed on insulator string in nested mode |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180814 Termination date: 20201229 |