CN203644697U - Plastic shell breaker having isolation function - Google Patents
Plastic shell breaker having isolation function Download PDFInfo
- Publication number
- CN203644697U CN203644697U CN201320858493.3U CN201320858493U CN203644697U CN 203644697 U CN203644697 U CN 203644697U CN 201320858493 U CN201320858493 U CN 201320858493U CN 203644697 U CN203644697 U CN 203644697U
- Authority
- CN
- China
- Prior art keywords
- lever
- rotating shaft
- breaker
- contact
- operating mechanism
- 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 - Lifetime
Links
- 238000002955 isolation Methods 0.000 title claims abstract description 19
- 238000003466 welding Methods 0.000 claims abstract description 18
- 230000007246 mechanism Effects 0.000 claims abstract description 13
- 238000002844 melting Methods 0.000 claims description 16
- 230000008018 melting Effects 0.000 claims description 16
- 238000000034 method Methods 0.000 claims description 5
- 230000008569 process Effects 0.000 claims description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 3
- 230000004927 fusion Effects 0.000 abstract 2
- 230000002498 deadly effect Effects 0.000 abstract 1
- 230000006872 improvement Effects 0.000 description 3
- 230000002159 abnormal effect Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000008520 organization Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
Images
Landscapes
- Breakers (AREA)
Abstract
The utility model discloses a plastic shell breaker having an isolation function. The plastic shell breaker comprises a shell and an operating mechanism in the shell; an upper connecting rod, a lower connecting rod, a lever and a rotating shaft driving a moving contact to rotate are disposed in the operating mechanism; and the rotating shaft is provided with at least one shaft hole, a connecting piece is disposed in the shaft hole, and the lower end of the lever is fixedly provided with a limit structure which limits the lever to continuously move relatively to the connecting piece in the contact fusion welding case. The limit structure is a projection which is fixedly disposed at the lower end of the lever. When the operating mechanism is closed or opened normally, a contact system can move normally, so the added structure cannot obstruct closing and opening actions of the breaker; and when the contact fusion welding occurs, the breaker contact is deadly limited, and when a handle is pushed, people can find that a collision occurs between the added structure on the lever and a shaft passing through the rotating shaft after the handle runs for a certain distance, so the handle is stopped to move to a disconnection position, and the effect of the isolation function is achieved finally.
Description
Technical field
The utility model relates to a kind of breaker of plastic casing with isolation features.Particularly, relate in the situation that contact of breaker, because of abnormal conditions, melting welding occurs, stop the operating mechanism of handle motion to the isolation features of open position.
Background technology
Breaker of plastic casing is a kind of device for switching that is used for distributing electric energy and protection circuit and power-supply device in distribution network that is applied to, and relies on the closed and disconnected of dynamic and static contact to realize switching on and off of electric current.In the time that the electric current in circuit breaker is excessive, likely can there is the situation of melting welding in contact, makes circuit breaker keep the state of connecting always.If now promote circuit breaker handle to open position, circuit breaker handle indicating circuit is in off-state, but in fact circuit, still in on-state, will be indicated the unfounded Circuits System that causes because of circuit breaker like this and damage or casualties.For fear of the generation of above-mentioned situation, designer has added isolation features in circuit breaker design, make people in the time of contact of breaker melting welding to shift circuit breaker handle onto open position, thereby alert circuit breaker breaks down.
The breaker of plastic casing of selling on the market now, adopts the project organization of Schneider circuit breaker isolation features mostly, makes two structures with some bendings in lever one side, utilizes and comes spacing through an axle of upper connecting rod.In the time that circuit breaker normally disconnects, the structure of adding and described axle can be avoided, and do not have each other interference; In the time of contact melting welding, because that root axle no longer moves, lever understands in motion process and described axle bumps and stop motion, thereby reaches the object of isolation.The deficiency of this scheme is: on lever, adding structure can increase the complexity of technique, increase manufacturing cost, in order to step down to the structure of adding, it is very high that operating mechanism must do simultaneously, will increase like this height of circuit breaker, appearance and practicality are reduced.
Utility model content
The problems referred to above that exist for breaker of plastic casing in prior art, the utility model provides a kind of breaker of plastic casing with isolation features, can reach good isolation effect and not hinder the normal divide-shut brake of circuit breaker.
In order to achieve the above object, the scheme that the utility model adopts is:
A kind of breaker of plastic casing with isolation features, comprise the operating mechanism in housing and housing, operating mechanism inside is provided with the rotating shaft that connecting rod, lower link, lever and drive moving contact rotate, described rotating shaft is provided with at least one axis hole, in described axis hole, be provided with connector, described lever lower end is fixedly installed the position limiting structure that limits the relatively described connector continuation of lever motion in contact melting welding situation.
As further improvement of the utility model, described position limiting structure is the projection that is fixedly installed on lever lower end, the development length of projection depends on: in contact melting welding situation, the process that lever moves from closure state to off-state, projection can collide with described connector.
As further improvement of the utility model, described connector is an axle through rotating shaft upper shaft hole,, through the axle of rotating shaft, do not contact under normal circumstances through axle and the position limiting structure of rotating shaft, and collision mutually in melting welding situation.
Adopt after above technical scheme, the beneficial effect that the utility model reaches is:
In the time of the normal divide-shut brake of operating mechanism, because contact system can proper motion, the structure of adding can not hinder the divide-shut brake action of circuit breaker, in the time of contact melting welding, contact of breaker will be limit extremely, when driving handle, we can find that handle moves after a segment distance, the structure of adding on lever will bump with the axle through rotating shaft, thereby stops handle motion to disjunction position, finally reaches the effect of isolation features.
Accompanying drawing explanation
Fig. 1 is the structural representation of lever in the utility model;
Fig. 2 is the structural representation of circuit breaker in the time of handle locking position.
In figure: 1, rotating shaft; 2, pass the axle of rotating shaft; 3, position limiting structure; 4, handle; 5, lever; 6, upper connecting rod; 7, lower link; 8, moving contact; 9, fixed contact.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
The structure of a kind of breaker of plastic casing with isolation features of the utility model as shown in Figure 2, comprise the operating mechanism in housing and housing, the rotating shaft 1 that operating mechanism inside is provided with connecting rod 6, lower link 7, lever 5 and drives moving contact 8 to rotate, rotating shaft 1 is provided with at least one axis hole, in axis hole, be provided with connector, lever 5 lower ends are fixedly installed the position limiting structure 3 that limits the relative connector continuation of lever 5 motion in contact melting welding situation.
As a kind of preferred structure, position limiting structure 3 is for being fixedly installed on the projection of lever 5 lower ends, and the development length of projection depends on: in contact melting welding situation, the process that lever 5 moves from closure state to off-state, projection can collide with connector.
Connector is preferably an axle through rotating shaft 1 upper shaft hole,, through the axle 2 of rotating shaft, do not contact under normal circumstances through axle 2 and the position limiting structure 3 of rotating shaft, and collision mutually in melting welding situation.
The course of work of a kind of breaker of plastic casing with isolation features of the utility model is as follows:
Position when A, B, C represent respectively handle motion to closure, locking, off-state in Fig. 2.
The utility model adds position limiting structure as shown in Figure 1 below the lever of existing breaker of plastic casing, and this position limiting structure can interact with an axle through rotating shaft.
When the normal divide-shut brake of circuit breaker, due to moving contact energy normal rotation, normal deciliter of moving contact and fixed contact 9 energy, rotating shaft and lever be energy proper motion all, and position limiting structure can not hinder the action of mechanism.
In the time of contact melting welding, driving handle 4 makes circuit breaker disjunction, and due to contact melting welding, rotating shaft is not rotated, and no longer rotates through the axle of rotating shaft.Now, handle still can continue along with promotion motion, and position limiting structure can collide with the axle through rotating shaft in the position of B shown in Fig. 2, stops handle 4 to arrive open position, and alert circuit breaker breaks down, and plays the effect of isolation features.
The foregoing is only preferred embodiment of the present utility model, not in order to limit the utility model.All any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection range of the present utility model.
Claims (3)
1. one kind has the breaker of plastic casing of isolation features, comprise the operating mechanism in housing and housing, the rotating shaft (1) that operating mechanism inside is provided with connecting rod (6), lower link (7), lever (5) and drives moving contact (8) to rotate, it is characterized in that: described rotating shaft (1) is provided with at least one axis hole, in described axis hole, be provided with connector, described lever (5) lower end is fixedly installed the position limiting structure (3) that limits the relatively described connector continuation of lever (5) motion in contact melting welding situation.
2. the breaker of plastic casing with isolation features according to claim 1, it is characterized in that: described position limiting structure (3) is for being fixedly installed on the projection of lever (5) lower end, the development length of projection depends on: in contact melting welding situation, the process that lever (5) moves from closure state to off-state, projection can collide with described connector.
3. the breaker of plastic casing with isolation features according to claim 1 and 2, it is characterized in that: described connector is an axle through rotating shaft (1) upper shaft hole, pass the axle (2) of rotating shaft, axle (2) and position limiting structure (3) through rotating shaft do not contact under normal circumstances, collision mutually in melting welding situation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858493.3U CN203644697U (en) | 2013-12-25 | 2013-12-25 | Plastic shell breaker having isolation function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320858493.3U CN203644697U (en) | 2013-12-25 | 2013-12-25 | Plastic shell breaker having isolation function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203644697U true CN203644697U (en) | 2014-06-11 |
Family
ID=50875923
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320858493.3U Expired - Lifetime CN203644697U (en) | 2013-12-25 | 2013-12-25 | Plastic shell breaker having isolation function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203644697U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681138A (en) * | 2013-12-25 | 2014-03-26 | 大全集团有限公司 | Molded-case circuit breaker with isolation function |
-
2013
- 2013-12-25 CN CN201320858493.3U patent/CN203644697U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103681138A (en) * | 2013-12-25 | 2014-03-26 | 大全集团有限公司 | Molded-case circuit breaker with isolation function |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105070600A (en) | Circuit breaker failure state indicating device | |
| CN203644696U (en) | Plastic shell breaker having isolation function | |
| CN101630611B (en) | Selective protective breaker | |
| CN203644697U (en) | Plastic shell breaker having isolation function | |
| CN205828199U (en) | Automatically the contact position indicating device of electrical equipment is changed | |
| CN204424104U (en) | Tripper and automatic change-over | |
| CN104201068A (en) | Direct current circuit breaker | |
| CN103928272B (en) | A kind of breaker structure and circuit breaker utilizing electrodynamic repulsion force rapid-releasing | |
| CN104868439A (en) | Server power supply connector and server power supply system | |
| CN103681137A (en) | Molded-case circuit breaker with isolation function | |
| CN103681138A (en) | Molded-case circuit breaker with isolation function | |
| CN203871296U (en) | CPS control and protection switch electric device | |
| CN103839733B (en) | A kind of circuit breaker can "on" position indicating device and the operating mechanism that coordinates with this device | |
| CN204361032U (en) | Universal circuit breaker operating mechanism free handle | |
| CN201383454Y (en) | Knife switch | |
| CN206480575U (en) | A kind of circuit breaker operation mechanism | |
| CN205248131U (en) | Railway contact net is electronic mechanism of improved generation for isolator | |
| CN203839310U (en) | Breaker | |
| CN204155886U (en) | Circuit breaker rotary type double-breakpoint structure of contact terminal | |
| CN205104451U (en) | Malfunction indicating device of circuit breaker | |
| CN202886898U (en) | Intelligent synchronous switch controller | |
| CN104866060A (en) | Server power source and server power supply system | |
| CN205303234U (en) | Fuse dropout interlocking device | |
| CN105765682A (en) | Electrical switching apparatus and opening assembly therefor having engagement lug | |
| CN203300577U (en) | Operating mechanism of circuit breaker |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160104 Address after: 211106 No. 28, long hidden Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee after: NANJING DAQO ELECTRICAL INSTITUTE Co.,Ltd. Address before: 212211 Jiangsu city of Zhenjiang province Yangzhong city new town of New South Road, No. 66 Patentee before: DAQO GROUP Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170911 Address after: Xinba Daquan 212200 Yangzhong Road, Zhenjiang City, Jiangsu province 66 Patentee after: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. Address before: 211106 No. 28, long hidden Road, Jiangning economic and Technological Development Zone, Nanjing, Jiangsu Patentee before: NANJING DAQO ELECTRICAL INSTITUTE Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 212200 No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee after: Jiangsu Daquan Kaifan switch Co.,Ltd. Address before: 212200 No.66 Daquan Road, Xinba Town, Yangzhong City, Zhenjiang City, Jiangsu Province Patentee before: JIANGSU DAQO KFINE ELECTRIC Co.,Ltd. |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140611 |