CN207409450U - A kind of breaker arc insulating cover - Google Patents
A kind of breaker arc insulating cover Download PDFInfo
- Publication number
- CN207409450U CN207409450U CN201721392384.1U CN201721392384U CN207409450U CN 207409450 U CN207409450 U CN 207409450U CN 201721392384 U CN201721392384 U CN 201721392384U CN 207409450 U CN207409450 U CN 207409450U
- Authority
- CN
- China
- Prior art keywords
- arc
- breaker
- insulating cover
- body case
- sleeve
- 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 breaker arc insulating covers, it is characterised in that：The breaker arc insulating cover is installed on the outside of breaker connecting terminal contact and covers the wire connection terminal contact, and the breaker arc insulating cover includes：Arc over body case 1, arc-chute 2 and sleeve 3.The utility model realizes each element in inside of breaker top arc-chutes and Shell of circuit breaker and the internal insulation of breaker, when there is disjunction in breaker, this structure can effectively prevent remaining high temperature and high pressure gas or charged particle from entering inside Shell of circuit breaker, it can realize secondary arc extinguishing, prevent it from generating harmful effect and other damages or dangerous to circuit breaker internal element.
Description
Technical field
The utility model is related to low-pressure electronic equipment product fields, especially breaker arc insulating cover.
Background technology
The high fever generated during low-voltage circuit breaker disjunction makes to form very high draught head, intracavity gas meeting with extraneous in contact cavities
It is outwards sprayed along gap, contains electric arc in the gas of injection.Arc-chutes are installed on the housing of general breaker, arc-chutes contain
There is a plurality of gap, be the main thoroughfare that contact intracavity gas outwards discharge, the spray for preventing arcing is provided with beside arc-chutes
End shield is penetrated, and end shield space is big.In general, rational design structure should reach the arc energy that breaker generates and all be introduced into
In the indoor arc extinguishing structure of arc extinguishing, it is made to eliminate completely, only the safe gas of surplus high temperature and pressure, then safe gas passes through end shield
Safety excludes, and realizes that pressure is balanced against damages with all parts of protective breaker, protects the personal safety of operator.
For the best open frame circuit breaker of current antiarcing-over effect, cover end is mounted on drawer, arc extinguishing
Room is mounted on Shell of circuit breaker, and housing and drawer can realize that split operates, but during open frame circuit breaker normal work, shell
Body be inside drawer chassis, end shield and arc-chutes be it is movable, end shield and between arc-chutes there are certain gap, so as to
Shell of circuit breaker will not be touched when entering drawer, when breaker disjunction, the electric arc and thermal current that can generate, and thermal current tool
There is very strong impact force, a part of thermal current still can carry some metallics and impurity secretly by being deposited between end shield and arc-chutes
Arc-chutes are sprayed in gap, it is possible to the electric conductor of circuit breaker internal is made to connect and charged, it is charged and due to the big influence of air pressure
Particle can be discharged from above-mentioned gap, be injected in around Shell of circuit breaker, cause serious phase fault and ground fault.
Utility model content
The technical problem to be solved by the utility model is to existing breaker arc insulating apparatus to be difficult to effectively protection open circuit
Device equipment has security risk, and provides a kind of breaker arc insulating cover, the arc insulating cover can effectively protective breaker equipment, ensure
Equipment safety normal use facilitates wiring to constitute a threat to reduce to personal safety.
The utility model is achieved in the following manner：
The breaker arc insulating cover is installed on the outside of breaker connecting terminal contact and covers the wire connection terminal contact,
The breaker arc insulating cover includes：Arc over body case 1, arc-chute 2 and sleeve 3；
The arc over body case 1 is equipped with spherical surface salient point 6, and the breaker arc insulating cover passes through spherical surface salient point 6 and breaker
Keyway clamping on housing, the spherical surface salient point 6 are interference fitted with keyway；
1 inner wall of arc over body case is equipped with card slot 4, and the arc-chute 2 is mounted on arc insulating cover by 4 inner cavity of card slot
It is interior；
The arc over body case 1 is internally provided with Elastic buckle 5；
Net structure is set in the 1 face arc-chute cover wall of arc over body case；
The arc-chute 2 is feeromagnetic metal, and arc-chute 2 is set to four, and arc case is stuck in by the way that card slot on inner wall 4 is embedded
On body 1；
The sleeve 3 is removable sleeve, and sleeve 3 is set to 3, and T-shaped to put, sleeve 3 passes through elastic on arc over body case 1
Sleeve 3 is connected by buckle 5 with arc over body case 1.
The use of the new type realizes each element in inside and breaker of breaker top arc-chutes and Shell of circuit breaker
Internal insulation, when there is disjunction in breaker, this structure can effectively prevent remaining high temperature and high pressure gas or charged particle into
Enter inside Shell of circuit breaker, can realize secondary arc extinguishing, prevent it from generating harmful effect and other damages to circuit breaker internal element
It is bad or dangerous, while operating personnel's operational security is greatly improved, while removable sleeve is set on arc insulating cover, for being connect before plate
Line, the sleeve below arc insulating cover is directly detachable, and for wiring after plate, sleeve can play the role of storing wiring, beautiful
See safety.
Description of the drawings
Fig. 1 is shown breaker arc insulating cover front schematic view
Specific embodiment
Illustrate the technical solution of the utility model in order to clearer, in the following with reference to the drawings and specific embodiments to this practicality
It is new to be further described in detail.
As shown in Figure 1, the breaker arc insulating cover is installed on the outside of breaker connecting terminal contact and covers described connect
Line terminals contact, the breaker arc insulating cover include：Arc over body case 1, arc-chute 2 and sleeve 3；
The arc over body case 1 is equipped with spherical surface salient point 6, and the breaker arc insulating cover passes through spherical surface salient point 6 and breaker
Keyway clamping on housing, the spherical surface salient point 6 are interference fitted with keyway；
1 inner wall of arc over body case is equipped with card slot 4, and the arc-chute 2 is mounted on arc insulating cover by 4 inner cavity of card slot
It is interior；
The arc over body case 1 is internally provided with Elastic buckle 5；
Net structure is set in the 1 face arc-chute cover wall of arc over body case；
The arc-chute 2 is feeromagnetic metal, and arc-chute 2 is set to four, and arc case is stuck in by the way that card slot on inner wall 4 is embedded
On body 1；
The sleeve 3 is removable sleeve, and sleeve 3 is set to 3, and T-shaped to put, sleeve 3 passes through elastic on arc over body case 1
Sleeve 3 is connected by buckle 5 with arc over body case 1.
The breaker arc insulating cover is buckled on Shell of circuit breaker when mounted, and the arc-chute 2 is located at and breaker shell
The arc-chutes correspondence position of body, arcing from arc-chutes and elsewhere carry out secondary go out when passing through arc-chute 2
Arc ensures the normal work of breaker and the personal safety of operating personnel, and this isolating device carries out spherical surface with Shell of circuit breaker
It snaps connection, firmly installs and simple aspect.
Preceding wiring for convenience simultaneously is provided with corresponding dismountable sleeve with wire connection terminal on the arc insulating apparatus
3, when carrying out breaker connection, installing after can directly the sleeve 3 be removed, if wiring after plate, then need not remove.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement made within the spirit and principle of utility model etc., should be included in the utility model
Protection domain within.
Claims (7)
1. a kind of breaker arc insulating cover, it is characterised in that：The breaker arc insulating cover is installed on breaker connecting terminal contact
Outside simultaneously covers the wire connection terminal contact, and the breaker arc insulating cover includes：Arc over body case (1), arc-chute (2) and sleeve
(3)。
2. a kind of breaker arc insulating cover as described in claim 1, the arc over body case (1) are equipped with spherical surface salient point (6), institute
It states breaker arc insulating cover to be clamped by the keyway on spherical surface salient point (6) and Shell of circuit breaker, the spherical surface salient point (6) and keyway mistake
It is full of cooperation.
3. a kind of breaker arc insulating cover as claimed in claim 2, arc over body case (1) inner wall are equipped with card slot (4), institute
Arc-chute (2) is stated to be mounted in arc insulating cover by card slot (4) inner cavity.
4. a kind of breaker arc insulating cover as claimed in claim 2, the arc over body case (1) are internally provided with Elastic buckle (5).
5. a kind of breaker arc insulating cover as claimed in claim 2, it is set in arc over body case (1) the face arc-chute cover wall
Net structure.
6. a kind of breaker arc insulating cover as described in claim 1, the arc-chute (2) are feeromagnetic metal, arc-chute (2) is set to
It four, is stuck in by the way that card slot on inner wall (4) is embedded on arc over body case 1.
7. a kind of breaker arc insulating cover as described in claim 1, the sleeve (3) are removable sleeve, sleeve (3) is set to 3
A, T-shaped to put, sleeve (3) is connected by sleeve (3) by Elastic buckle (5) on arc over body case (1) with arc over body case (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392384.1U CN207409450U (en) | 2017-10-27 | 2017-10-27 | A kind of breaker arc insulating cover |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721392384.1U CN207409450U (en) | 2017-10-27 | 2017-10-27 | A kind of breaker arc insulating cover |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207409450U true CN207409450U (en) | 2018-05-25 |
Family
ID=62407903
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721392384.1U Expired - Fee Related CN207409450U (en) | 2017-10-27 | 2017-10-27 | A kind of breaker arc insulating cover |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207409450U (en) |
-
2017
- 2017-10-27 CN CN201721392384.1U patent/CN207409450U/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: 20180525 Termination date: 20191027 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |