CN206293359U - A kind of breaker - Google Patents
A kind of breaker Download PDFInfo
- Publication number
- CN206293359U CN206293359U CN201621476215.1U CN201621476215U CN206293359U CN 206293359 U CN206293359 U CN 206293359U CN 201621476215 U CN201621476215 U CN 201621476215U CN 206293359 U CN206293359 U CN 206293359U
- Authority
- CN
- China
- Prior art keywords
- tension pole
- insulated tension
- bottom outlet
- installation cavity
- wall
- 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,Include plastic casing,The plastic casing inner hollow forms installation cavity,Vacuum interrupter is provided with installation cavity,Vacuum interrupter includes ceramic shell,Ceramic shell has been internally formed vacuum chamber,Apical pore and bottom outlet have been opened up respectively on the top and bottom of ceramic shell,Fix bar is plugged with apical pore,Fix bar outer wall is fitted with the hole wall of apical pore,Fix bar one end is fixed on the inwall of installation cavity,The fixed static contact of the other end,Insulated tension pole is plugged with bottom outlet,Insulated tension pole part extends in the vacuum chamber,And driven can be slided up and down relative to bottom outlet,In the fixed moving contact in the top of insulated tension pole,When insulated tension pole is slided up and down relative to the bottom outlet,Moving contact can be closer or far from static contact,Extended in the insulated tension pole and be arranged with metal bellows and radome on the part in the vacuum chamber,The radome is located at the lower section of the metal bellows and sets the wavy metal shroud.
Description
Technical field：
The utility model is related to technical field of electronic components, has been specifically related to a kind of anticreep breaker.
Background technology
Breaker (English name:Circuit-breaker, circuit breaker) it is to refer to close, carry and open
Electric current under normal loop condition of breaking simultaneously can close, carry and cut-off the electric current under abnormal loop condition within the time for specifying
Switching device.
In the prior art, a kind of breaker is disclosed in the Chinese invention patent of Patent No. 201410681336.9,
Including the electrical connection module in housing and housing, described housing bottom is provided through horizontal with circuit breaker guide rails in the width direction
To the installation cavity for coordinating installation, the installation cavity side is provided with and match somebody with somebody with circuit breaker guide rails cross side checkpost and supply housing with breaker
The fan-shaped mounting groove swung centered on guide rail side end, opposite side is provided with along circuit breaker guide rails horizontal sliding and by breaker
Guide rail opposite side side is locked in the locking piece in installation cavity, and the side that installation cavity is provided with locking piece is additionally provided with for housing phase
To the sliding chamber of circuit breaker guide rails horizontal sliding, sliding chamber is located on the sliding trajectory of locking piece.
But, breaker of the prior art has the situation of electric leakage after long-term use, can cause sizable
Potential safety hazard, because, although being provided with vacuum interrupter in existing breaker to eliminate what breaking moment overflowed
Electric arc, but existing breaker generally uses the combination of plastic casing and ceramic shell, using the insulation of plastic casing ceramics
Performance completely cuts off in vacuum extinction device electric arc, but the phenomenon of expanding with heat and contract with cold that plastic material is subject to is obvious, after long-term use
Can cause aging, easily form gap, and ceramic material is more crisp, be also possible to produce crack in installation process, therefore this
A little factors easily lead to electric arc and penetrate vacuum interrupter, cause potential safety hazard.
Utility model content：
The purpose of this utility model is to provide for a kind of anticreep breaker.
The purpose is achieved by the following scheme,
A kind of breaker, includes plastic casing, and the plastic casing inner hollow forms installation cavity, in the installation
Vacuum interrupter is provided with chamber, the vacuum interrupter includes ceramic shell, and the ceramic shell has been internally formed vacuum
Chamber, apical pore and bottom outlet have been opened up on the top and bottom of the ceramic shell respectively, and fix bar, institute are plugged with the apical pore
State fix bar outer wall to be fitted with the hole wall of the apical pore, described fix bar one end is fixed on the inwall of the installation cavity, another
Fixed static contact is held, insulated tension pole is plugged with the bottom outlet, the insulated tension pole part is extended in the vacuum chamber,
And driven can be slided up and down relative to the bottom outlet, in the fixed moving contact in the top of the insulated tension pole, when the insulation is drawn
When bar is slided up and down relative to the bottom outlet, the moving contact can prolong closer or far from the static contact in the insulated tension pole
Stretch and metal bellows and radome are arranged with the part in the vacuum chamber, the radome is located at the metal bellows
Lower section and the wavy metal shroud is set.
As improvement of the present utility model, guide cylinder set, the guide cylinder set socket are provided with the bottom outlet
On the insulated tension pole, the outer wall of the guide cylinder set is fitted with the hole wall of the bottom outlet.
As further improvement of the utility model, lubricating oil is coated with the outer wall of guide cylinder set.
Switch knob is preferably provided with the plastic casing as of the present utility model, is set in the installation cavity
Link gear is put, described switch knob one end extends in the installation cavity and is connected with the link gear, the linkage
Mechanism is also connected with the bottom of the insulated tension pole.
As it is of the present utility model further preferably, the link gear includes the plane scroll spring with outer cover, should
Plane scroll spring is connected on the switch knob by driving-chain, and main shaft is inserted with the plane scroll spring center,
Cam disc is also arranged on the main shaft, the cam disc can be connected with the main axis in the outer ring of the cam disc
Both arms movement connecting rod, described both arms movement connecting rod one end is connected with the cam disc, and the other end is connected to the insulated tension pole
Bottom.
Compared with prior art, the utility model has the advantage of：Metal bellows is provided with vacuum interrupter, should
Metal bellows is socketed on insulated tension pole and positioned at the lower section of moving contact, when the moment that moving contact and static contact disconnect, meeting
Electric arc is produced, electric arc can be siphoned away (electric conductivity of metal) by metal bellows rapidly, in order to prevent what metal bellows from siphoning away
Electric arc leaks, and cover has set radome below metal bellows, and the radome is insulation, so as to be formed in vacuum extinction room
Duplicate protection, it is ensured that do not have electric arc and be leaked to outside, trigger potential safety hazard.
Brief description of the drawings：
Fig. 1 is the external structure schematic diagram of breaker in the utility model embodiment；
Fig. 2 is the internal structure schematic diagram of breaker in the utility model embodiment；
Fig. 3 is the internal structure sectional view of vacuum interrupter.
Specific embodiment：
The utility model is elaborated below in conjunction with the accompanying drawings preferred embodiment.
The utility model provides a kind of breaker, includes plastic casing 1, and peace is formd in plastic casing inner hollow
It behave affectedly 11, vacuum interrupter 2 is provided with installation cavity, the vacuum interrupter includes ceramic shell 3, and ceramic shell is defined
One closed vacuum chamber 31, and ceramics have insulating properties, can prevent electric arc from leaking, and arc extinguishing process can cause vacuum in addition
The temperature of arc-chutes is raised, and it is enclosed in completely can aggravate expanding with heat and contract with cold for plastic casing in plastic casing, and then accelerates modeling
The ageing process of material shell body, and plastic casing is replaced using ceramic shell, the on the one hand thermal expansion and contraction degree pin of ceramics, and ceramics
Thermal conductivity it is preferable, it is possible to achieve the heat exchange of vacuum interrupter and extraneous air, it is ensured that it will not be overheated.In ceramic shell
Top and bottom have opened up apical pore 32 and bottom outlet 33 respectively, and fix bar 4 is plugged with apical pore, the fix bar outer wall and apical pore
Hole wall is fitted to realize air-tightness, in order to ensure vacuum chamber is fully sealed, can also cover sealing ring on fix bar outer wall, is entered
One step lifts rate of pressurization.
The top of foregoing fix bar is fixed on the inwall of installation cavity, the bottom of fix bar then fixed static contact 41,
Insulated tension pole 5 is plugged with bottom outlet, insulated tension pole part extends in the vacuum chamber, and driven (can actually receive hereinafter
The driving of the link gear) slided up and down relative to bottom outlet, in the fixed moving contact 51 in the top of insulated tension pole, when insulation is drawn
When bar rises relative to bottom outlet, moving contact can be near static contact until both contacts, realize the company of circuit when both contact
It is logical, conversely, when insulated tension pole declines relative to bottom outlet, moving contact when both are separate, that is, is realized resolving away from static contact
Road, needs exist for explanation, and moving contact and static contact are conductive, and the inside of insulated tension pole has worn a conducting rod,
Moving contact is the top of conducting rod, and why is referred to as insulated tension pole, because conducting rod is outside all by rubber etc.
Wrapped with insulation, therefore form the insulated tension pole described in the present embodiment.In order to realize slip of the insulated tension pole in low hole
Journey, is provided with guide cylinder set 6 in bottom outlet, and guide cylinder set is socketed on the insulated tension pole, the outer wall of guide cylinder set
Fitted with the hole wall of bottom outlet to realize the raising of air-tightness, and in order to reduce abrasion, smeared on the outer wall of guide cylinder set
Lubricating oil.
Extended in insulated tension pole and metal bellows 7 and radome 8 are arranged with the part in vacuum chamber, radome is located at
The lower section of metal bellows and wavy metal shroud is set, metal bellows is located at the lower section of moving contact, in breaking moment electric arc
During generation, metal bellows can be using the electric conductivity of itself by arc-absorption, and radome can then prevent electric arc along gold
Category bellows is discharged to guide cylinder and puts, and vacuum interrupter is penetrated by guide cylinder set.It is achieved thereby that to vacuum interrupter
The double insurance of insulating properties.
In order to control contact of the moving contact with static contact and separate, switch knob 12 is provided with plastic casing, in peace
Link gear 9 is provided with behaveing affectedly, the link gear includes the plane scroll spring 91 with outer cover, and switch knob one end extends
In installation cavity, a rotating shaft 121 is provided with this one end, when switch knob is pulled, the axis of rotation can be driven, turned
A driving-chain 92 is arranged on axle, the driving-chain 92 is also set in the outer ring of plane scroll spring 91, thus works as axis of rotation
When, can also drive plane scroll spring to rotate, main shaft 93 is inserted with plane scroll spring center, when plane scroll spring is rotated
When, main axis can be driven, cam disc 94 has also been arranged on main shaft, cam disc can be with main axis, in the outer ring of cam disc
Both arms movement connecting rod 95 is connected to, both arms movement connecting rod one end is connected with the cam disc, and the other end is connected to the insulation and draws
The bottom of bar, when cam disc is rotated, the other end that both arms can be driven to move connecting rod is moved up and down, so as to drive insulated tension pole
Slide up and down.
The above makes preferred embodiment of the present utility model, does not depart from for the person of ordinary skill of the art
On the premise of the utility model principle, some variations and modifications can also be made, these also should be regarded as protection of the present utility model
Scope.
Claims (5)
1. a kind of breaker, includes plastic casing, and the plastic casing inner hollow forms installation cavity, in the installation cavity
In be provided with vacuum interrupter, it is characterised in that：The vacuum interrupter includes ceramic shell, ceramic shell inside shape
Into vacuum chamber, apical pore and bottom outlet have been opened up respectively on the top and bottom of the ceramic shell, be plugged with the apical pore
Fix bar, the fix bar outer wall is fitted with the hole wall of the apical pore, and described fix bar one end is fixed on the interior of the installation cavity
On wall, the fixed static contact of the other end is plugged with insulated tension pole in the bottom outlet, and the insulated tension pole part extends in described
In vacuum chamber, and driven can be slided up and down relative to the bottom outlet, in the fixed moving contact in the top of the insulated tension pole, work as institute
When stating insulated tension pole and being slided up and down relative to the bottom outlet, the moving contact can closer or far from the static contact, it is described absolutely
Metal bellows and radome are arranged with the part that edge pull bar extends in the vacuum chamber, the radome is located at the gold
Belong to the lower section of bellows and set the wavy metal shroud.
2. breaker according to claim 1, it is characterised in that：Guide cylinder set is provided with the bottom outlet, it is described
Guide cylinder set is socketed on the insulated tension pole, and the outer wall of the guide cylinder set is fitted with the hole wall of the bottom outlet.
3. breaker according to claim 2, it is characterised in that：Lubrication is coated with the outer wall of guide cylinder set
Oil.
4. breaker according to claim 1, it is characterised in that：Switch knob is provided with the plastic casing,
Be provided with link gear in the installation cavity, described switch knob one end extend in the installation cavity and with the link gear
Connection, the link gear is also connected with the bottom of the insulated tension pole.
5. breaker according to claim 4, it is characterised in that：The link gear includes the plane snail volume with outer cover
Spring, the plane scroll spring is connected on the switch knob by driving-chain, is plugged at the plane scroll spring center
There is main shaft, cam disc has also been arranged on the main shaft, the cam disc can be with the main axis, in the outer of the cam disc
Circle is connected to both arms movement connecting rod, and described both arms movement connecting rod one end is connected with the cam disc, and the other end is connected to described exhausted
The bottom of edge pull bar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476215.1U CN206293359U (en) | 2016-12-30 | 2016-12-30 | A kind of breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621476215.1U CN206293359U (en) | 2016-12-30 | 2016-12-30 | A kind of breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206293359U true CN206293359U (en) | 2017-06-30 |
Family
ID=59098543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621476215.1U Expired - Fee Related CN206293359U (en) | 2016-12-30 | 2016-12-30 | A kind of breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206293359U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946151A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | Low-voltage leakage switchs |
| CN107946150A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | A kind of leakage circuit breakers |
| CN109545615A (en) * | 2018-11-15 | 2019-03-29 | 娄底市安地亚斯电子陶瓷有限公司 | Vacuum interrupter, vacuum direct-current high-voltage relay and preparation method thereof |
-
2016
- 2016-12-30 CN CN201621476215.1U patent/CN206293359U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107946151A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | Low-voltage leakage switchs |
| CN107946150A (en) * | 2017-12-21 | 2018-04-20 | 永嘉县信诚科技服务有限公司 | A kind of leakage circuit breakers |
| CN109545615A (en) * | 2018-11-15 | 2019-03-29 | 娄底市安地亚斯电子陶瓷有限公司 | Vacuum interrupter, vacuum direct-current high-voltage relay and preparation method thereof |
| CN109545615B (en) * | 2018-11-15 | 2019-12-27 | 娄底市安地亚斯电子陶瓷有限公司 | Vacuum arc-extinguishing chamber, vacuum direct-current high-voltage relay and preparation method thereof |
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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: 20170630 Termination date: 20171230 |