CN108630472A - Miniature circuit breaker - Google Patents
Miniature circuit breaker Download PDFInfo
- Publication number
- CN108630472A CN108630472A CN201810640474.0A CN201810640474A CN108630472A CN 108630472 A CN108630472 A CN 108630472A CN 201810640474 A CN201810640474 A CN 201810640474A CN 108630472 A CN108630472 A CN 108630472A
- Authority
- CN
- China
- Prior art keywords
- lower housing
- upper shell
- contact
- circuit breaker
- miniature circuit
- 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.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H1/00—Contacts
- H01H1/64—Protective enclosures, baffle plates, or screens for contacts
- H01H1/66—Contacts sealed in an evacuated or gas-filled envelope, e.g. magnetic dry-reed contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/025—Constructional details of housings or casings not concerning the mounting or assembly of the different internal parts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H9/00—Details of switching devices, not covered by groups H01H1/00 - H01H7/00
- H01H9/02—Bases, casings, or covers
- H01H9/04—Dustproof, splashproof, drip-proof, waterproof, or flameproof casings
- H01H9/042—Explosion-proof cases
Landscapes
- Gas-Insulated Switchgears (AREA)
Abstract
Miniature circuit breaker, it is related to a kind of electrical equipment, including breaker body, sealed set has upper shell and lower housing in the breaker body, plug aperture corresponding with breaker body upper contact and lower contact is respectively arranged on the upper shell and the lower housing, it is provided with elastic seal ring in the plug aperture, dismountable sealing cover is additionally provided in the plug aperture, it is respectively arranged with small gas storage tank on the upper shell and lower housing, it is stored with compressed nitrogen in the small gas storage tank, air outlet valve is provided on the air accumulator.Compared with prior art, this breaker contact point is sealed in the shell full of nitrogen, has completely cut off extraneous dust and impurity, simultaneously because the not contact of oxygen, the generation for having prevented contact oxidation reaction, greatly improves the service life of contact, reduces the incidence of failure.Moreover, after contact is exploded, the generation of fire can also be reduced under the inhibition of nitrogen.
Description
Technical field
The present invention relates to a kind of electrical equipment, especially a kind of breaker.
Background technology
Breaker is also referred to as molded case circuit breaker, and all parts are all sealed in plastic shell, auxiliary contact, owes electricity
Pressure buckle releaser and shunt release etc. mostly use modularization.Closely due to structure, breaker of plastic casing can not overhaul substantially.
It mostly uses manual operation, and electronic division may be selected in large capacity.Miniature circuit breaker will produce electric arc during the work time, and having very much can
It can explode, influence whether other normal equipment once miniature circuit breaker explodes, cause great property loss, sometimes
It can also create greater casualties.In use, the environmental conditions such as dust, temperature, humidity cause the failure of miniature circuit breaker
Have a great impact with service life, so if miniature circuit breaker has the shell of the functions such as sealing, cooling, damping, datonation-inhibition
Usability and the service life of electrical equipment are then greatly reinforced.
Invention content
The present invention is directed to deficiency in the prior art, provides miniature circuit breaker, this breaker contact point is sealed in full of nitrogen
In the shell of gas, extraneous dust and impurity are completely cut off, simultaneously because the not contact of oxygen, has prevented the hair of contact oxidation reaction
It is raw, it greatly improves the service life of contact, reduce the incidence of failure.Moreover, after contact is exploded, in nitrogen
Inhibition under can also reduce the generation of fire.
In order to solve the above-mentioned technical problem, the present invention is addressed by following technical proposals：Miniature circuit breaker, including it is disconnected
Road device main body, sealed set has upper shell and lower housing, the upper shell and the lower casing in the breaker body
It is respectively arranged with plug aperture corresponding with breaker body upper contact and lower contact on body, bullet is provided in the plug aperture
Property sealing ring is additionally provided with dismountable sealing cover in the plug aperture, is respectively set on the upper shell and lower housing
There is small gas storage tank, compressed nitrogen is stored in the small gas storage tank, air outlet valve is provided on the air accumulator, it is described
Upper shell and the lower housing in air pressure be more than ambient pressure.
In above-mentioned technical proposal, it is preferred that be provided with baroceptor in the upper shell and the lower housing, institute
The air outlet valve described in baroceptor control stated.
In above-mentioned technical proposal, it is preferred that be additionally provided with temperature sensor and signal transmission in the breaker body
Temperature signal is transmitted to monitoring device by device, the temperature sensor by signal transmitting apparatus.
In above-mentioned technical proposal, it is preferred that the upper shell and the lower housing are transparent.
In above-mentioned technical proposal, it is preferred that the upper shell and the lower housing are dismountable.
In above-mentioned technical proposal, it is preferred that the small gas storage tank is on the upper shell and the lower housing
It is dismountable.
The contact of this breaker is placed in a closed space full of nitrogen, can thus completely cut off extraneous ash
Dirt, meanwhile, air pressure, which is more than ambient pressure, in upper shell and lower housing can prevent the entrance of outside air, thus prevent contact
The generation of oxidation reaction greatly improves the service life of contact, reduces the incidence of failure.Nitrogen is also datonation-inhibition simultaneously
Effect, the harm of fire can be reduced by spark or explosion time occur in poor contact of contacts, prevent from burning, and ensure other equipment peace
Entirely.
Compared with prior art, this breaker contact point is sealed in the shell full of nitrogen, completely cut off extraneous dust with it is miscellaneous
Matter, simultaneously because the not contact of oxygen moreover after contact is exploded, can also reduce fire under the inhibition of nitrogen
Occur.
Description of the drawings
Fig. 1 is schematic diagram of the present invention.
Specific implementation mode
Present invention is further described in detail With reference to embodiment.
Embodiment 1：As shown in Figure 1, miniature circuit breaker, including breaker body 9, sealed in the breaker body 9
It is provided with upper shell 11 and lower housing 12, the upper shell 11 and 12 body of lower casing are transparent.11 He of upper shell
The lower housing 12 is dismountable.It is respectively arranged with and breaker master on the upper shell 11 and the lower housing 12
92 corresponding plug aperture 13 of 9 upper contact 91 of body and lower contact is provided with elastic seal ring 15 in the plug aperture 13, described
Plug aperture 13 on be additionally provided with dismountable sealing cover 14.It is respectively arranged on the upper shell 11 and lower housing 12 small-sized
Air accumulator 5, the small gas storage tank 5 are dismountable on the upper shell 11 and the lower housing 12.Described
It is stored with compressed nitrogen in small gas storage tank 5, is provided with air outlet valve 6 on the air accumulator 5, the upper shell 11 and described
Lower housing 12 in air pressure be more than ambient pressure.It is provided with baroceptor in the upper shell 11 and the lower housing 12
83, the baroceptor 83 controls the air outlet valve 6.It is additionally provided with temperature sensor in the breaker body 9
81 and signal transmitting apparatus 82, temperature signal is transmitted to monitoring dress by the temperature sensor 81 by signal transmitting apparatus 82
It sets.
In use, first assembling breaker body 9 and upper shell 11 and lower housing 12 so that upper contact 91 and lower contact 92
Expose outside plug aperture 13, and breaker body 9 is sealed with upper shell 11 and lower housing 12 elsewhere.Then pass through air outlet valve
6 to upper shell 11 and lower housing 12 respectively in discharge nitrogen, allow upper shell 11 with nitrogen is full of in lower housing 12, at this moment can be with
Arbitrary sealing cover 14 is first opened, upper shell 11 is allowed to be discharged with the air in lower housing 12, full of sealing up sealing after nitrogen
Lid 14 when being patched, removes sealing cover.It is respectively arranged with air pressure in upper shell 11 and the lower housing 12
Sensor 83 is supplemented as long as the amount deficiency of nitrogen is detected by baroceptor 83 by nitrogen cylinder 5.Temperature sensor
81 moment monitored temperature in converter main body 9, had exception to alarm by signal transmitting apparatus 82.Nitrogen can lead to after being finished
Air accumulator 5 is crossed to be replaced.This breaker contact point is sealed in the shell full of nitrogen, has completely cut off extraneous dust and impurity, together
When the generation of fire moreover after contact is exploded, can also be reduced under the inhibition of nitrogen due to the contact of not no oxygen.
Claims (6)
1. miniature circuit breaker, including breaker body, it is characterized in that, in the breaker body sealed set have upper shell and
It is respectively arranged on lower housing, the upper shell and the lower housing corresponding with breaker body upper contact and lower contact
Plug aperture, be provided with elastic seal ring in the plug aperture, dismountable sealing cover be additionally provided in the plug aperture,
It is respectively arranged with small gas storage tank on the upper shell and lower housing, compressed nitrogen is stored in the small gas storage tank,
Air outlet valve is provided on the air accumulator, air pressure is more than ambient pressure in the upper shell and the lower housing.
2. miniature circuit breaker according to claim 1, it is characterized in that, setting in the upper shell and the lower housing
There are baroceptor, the baroceptor control air outlet valve.
3. miniature circuit breaker according to claim 1, it is characterized in that, temperature biography is additionally provided in the breaker body
Temperature signal is transmitted to monitoring device by sensor and signal transmitting apparatus, the temperature sensor by signal transmitting apparatus.
4. miniature circuit breaker according to claim 1, it is characterized in that, the upper shell and the lower housing are transparent.
5. miniature circuit breaker according to claim 1, it is characterized in that, the upper shell and the lower housing are removable
It unloads.
6. miniature circuit breaker according to claim 1, it is characterized in that, the small gas storage tank in the upper shell and
It is dismountable on the lower housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640474.0A CN108630472A (en) | 2018-06-21 | 2018-06-21 | Miniature circuit breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810640474.0A CN108630472A (en) | 2018-06-21 | 2018-06-21 | Miniature circuit breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108630472A true CN108630472A (en) | 2018-10-09 |
Family
ID=63692120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810640474.0A Pending CN108630472A (en) | 2018-06-21 | 2018-06-21 | Miniature circuit breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108630472A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109450101A (en) * | 2018-12-28 | 2019-03-08 | 深圳市厚沃电气科技有限公司 | A kind of control device for low-pressure plastic shell circuit breaker |
| CN113692630A (en) * | 2018-12-26 | 2021-11-23 | 伊顿智能动力有限公司 | Circuit protection apparatus, system and method for explosive environment compliance |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202259067U (en) * | 2011-09-13 | 2012-05-30 | 上海诺雅克电气有限公司 | Minitype breaker provided with safety device |
| CN202796755U (en) * | 2012-07-17 | 2013-03-13 | 保定市莱凯电器设备制造有限公司 | Enclosed inflatable contactor |
| CN107622905A (en) * | 2017-08-21 | 2018-01-23 | 安徽省颍上县正泰电器有限责任公司 | A kind of breaker structure |
-
2018
- 2018-06-21 CN CN201810640474.0A patent/CN108630472A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202259067U (en) * | 2011-09-13 | 2012-05-30 | 上海诺雅克电气有限公司 | Minitype breaker provided with safety device |
| CN202796755U (en) * | 2012-07-17 | 2013-03-13 | 保定市莱凯电器设备制造有限公司 | Enclosed inflatable contactor |
| CN107622905A (en) * | 2017-08-21 | 2018-01-23 | 安徽省颍上县正泰电器有限责任公司 | A kind of breaker structure |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113692630A (en) * | 2018-12-26 | 2021-11-23 | 伊顿智能动力有限公司 | Circuit protection apparatus, system and method for explosive environment compliance |
| US20220328262A1 (en) * | 2018-12-26 | 2022-10-13 | Eaton Intelligent Power Limited | Circuit protection devices, systems and methods for explosive environment compliance |
| CN113692630B (en) * | 2018-12-26 | 2024-03-12 | 伊顿智能动力有限公司 | Circuit protection device, system and method for compliance in explosive environments |
| US11967478B2 (en) * | 2018-12-26 | 2024-04-23 | Eaton Intelligent Power Limited | Circuit protection devices, systems and methods for explosive environment compliance |
| CN109450101A (en) * | 2018-12-28 | 2019-03-08 | 深圳市厚沃电气科技有限公司 | A kind of control device for low-pressure plastic shell circuit breaker |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20181009 |