CN105374636A - Moving contact installation support of plastic casing breaker - Google Patents
Moving contact installation support of plastic casing breaker Download PDFInfo
- Publication number
- CN105374636A CN105374636A CN201510947346.7A CN201510947346A CN105374636A CN 105374636 A CN105374636 A CN 105374636A CN 201510947346 A CN201510947346 A CN 201510947346A CN 105374636 A CN105374636 A CN 105374636A
- Authority
- CN
- China
- Prior art keywords
- moving contact
- mounting bracket
- plastic casing
- breaker
- installation support
- 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
- H01H71/00—Details of the protective switches or relays covered by groups H01H73/00 - H01H83/00
- H01H71/02—Housings; Casings; Bases; Mountings
- H01H71/0207—Mounting or assembling the different parts of the circuit breaker
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H73/00—Protective overload circuit-breaking switches in which excess current opens the contacts by automatic release of mechanical energy stored by previous operation of a hand reset mechanism
- H01H73/02—Details
- H01H73/04—Contacts
Landscapes
- Breakers (AREA)
Abstract
The invention discloses a moving contact installation support of a plastic casing breaker, comprising two vertical side walls which are positioned on the left side and on the right side and are provided with rotation shaft holes and a bottom cavity for connecting to the side walls; and each of two spring seats of the bottom cavity is provided with a compression spring. The moving contact installation support of the plastic casing breaker is characterized in that the moving contact installation support is made of zinc alloy through die casting and that the surface is provided with a coating layer. The design structure of the moving contact installation support is changed, which is applicable to die casting and manufacture of the zinc alloy, changes the traditional stamping part structure of the part, simplifies the production technology and the structure of the moving contact installation support, and improves the processing accuracy and the production efficiency of the moving contact installation support.
Description
Technical field
The present invention relates to a kind of low voltage component, relate to a kind of moving contact mounting bracket of breaker of plastic casing specifically.
Background technology
Breaker of plastic casing is a kind of conventional distribution protection device, and it has the function to the switching of load supplying and overload, short-circuit protection, is widely used in electrical power distribution system.The movable contact system of breaker of plastic casing is the critical piece of breaker of plastic casing, its moving contact is combined into movable contact system by moving contact mounting bracket and contact connector by rotating shaft, at described moving contact mounting bracket built with Compress Spring, when moving contact disjunction and the stable position effect playing moving contact after closing a floodgate, the traditional structure of this moving contact mounting bracket is stamping parts structure, shaping through Multi-step forming ability, simultaneously in order to the service position of constant compression spring, a plastic mattress shell is provided with between Compress Spring and moving contact mounting bracket, this moving contact mounting bracket structure is caused to become complicated, scale error and requirement of mechanical strength higher.
Summary of the invention
The object of the invention is to change the present situation that current moving contact of plastic-shell circuit breaker mounting support structure is complicated, processes is difficult, a kind of moving contact mounting bracket of applicable alloy die cast is provided.
For achieving the above object, the technical solution used in the present invention is: a kind of moving contact mounting bracket of breaker of plastic casing, comprise two, left and right be provided with the vertical sidewall of shaft hole and be connected the chamber, the end of two sidewalls, the junction in described two perpendicular outer wall and chamber, the end is provided with demoulding chamfering.
Further setting, described moving contact mounting bracket is formed by zinc alloy diecasting, and surface is provided with coating layer.
Further setting, a columniform connection inserting column is respectively provided with on the shaft hole top of two sidewall outer walls of described moving contact mounting bracket and two sides, this inserting column is provided with certain tapering from root to top, be beneficial to the workpiece demoulding in die casting machine and with plug together closely plugging together of workpiece.
Further setting, two square connection inserting columns are provided with in the shaft hole bottom of two sidewall outer walls of described moving contact mounting bracket, this inserting column is provided with certain tapering from root to top, be beneficial to the workpiece demoulding in die casting machine and with plug together closely plugging together of workpiece.
Further setting, is provided with spring mounting seat, in spring mounting seat, is provided with Compress Spring in the chamber, the end of described moving contact mounting bracket, described Compress Spring for moving contact disjunction, close a floodgate time stable position.
The beneficial effect of the moving contact mounting bracket of above invention breaker of plastic casing is: because the project organization of moving contact mounting bracket there occurs change, make it the die casting manufacture that these parts can be applicable to kirsite, change the stamping parts structure that these parts are traditional, simplify the structure of production technology and moving contact mounting bracket, improve machining accuracy and the production efficiency of moving contact mounting bracket.
Accompanying drawing explanation
Fig. 1 is conventional art movable contact system structure chart;
Fig. 2 is conventional art moving-contact unit element exploded view;
Fig. 3 is moving-contact unit element exploded view of the present invention;
Fig. 4 is moving contact mounting bracket structure chart of the present invention.
Embodiment
Be clearly and completely described technical scheme of the present invention below in conjunction with accompanying drawing 1 ~ Fig. 4, obviously, described embodiment is section Example of the present invention, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making other embodiments all obtained under creative work prerequisite, belong to scope of the present invention.
In describing the invention, it should be noted that, term " on ", D score, "left", "right", " interior ", " outward " " vertically ", " sidewall ", " top " " chamber, the end ", the orientation of the instruction such as " two sides " or position relationship be based on orientation shown in the drawings or position relationship, only the present invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore can not be interpreted as limitation of the present invention.
Conventional art moving contact of plastic-shell circuit breaker system configuration as shown in Figure 1, moving contact 5, moving contact mounting bracket 4 and moving contact lead end 2 form moving-contact unit, by rotating shaft 3, moving-contact unit and moving contact connector 1 are combined as the movable contact system of breaker of plastic casing, described moving-contact unit can according to breaker of plastic casing need arrange two to four to form two poles to four pole breaker of plastic casing.
Conventional art moving-contact unit structure as shown in Figure 2, described moving contact mounting bracket 4 is built with support backing member 5, the Compress Spring 7 then two inside being equipped with spring pressed stud 8 loads in support backing member 5, then forms moving-contact unit by described rotating shaft 3 through the shaft hole of the shaft hole on moving contact mounting bracket 4 and moving contact lead end 2.
The structure of the moving-contact unit of a kind of breaker of plastic casing of the present invention is as Fig. 3, the Compress Spring 7 that spring pressed stud 8 is equipped with in two inside is arranged in two spring mounting seats 9021 in moving contact mounting bracket 9 lower bottom chamber 902, then forms moving-contact unit by described rotating shaft 3 through the shaft hole of the shaft hole 905 on moving contact mounting bracket 9 and moving contact lead end 2.
The structure of moving contact mounting bracket of the present invention as shown in Figure 4, described moving contact mounting bracket 9 is formed by 3# zinc alloy diecasting, surface is provided with nickel coating, comprise two, left and right be provided with the vertical sidewall 901 of shaft hole 905 and be connected the chamber, the end 902 of two sidewalls, the junction in described two perpendicular outer wall 901 and chamber, the end 902 is provided with the demoulding chamfering being not less than R2, is beneficial to the workpiece demoulding in die casting machine.
Further setting, a columniform connection inserting column 904 is respectively provided with on the top of the shaft hole 905 of two sidewall outer walls of described moving contact mounting bracket 9 and two sides, this inserting column is provided with the tapering being not less than 1% from root to top, be beneficial to the workpiece demoulding in die casting machine and with plug together closely plugging together of workpiece.
Further setting, two square connection inserting columns 903 are provided with in the bottom of the shaft hole 905 of two sidewall outer walls of described moving contact mounting bracket 9, this inserting column is provided with the tapering being not less than 1% from root to top, be beneficial to the workpiece demoulding in die casting machine and with plug together closely plugging together of workpiece.
Further setting, two spring mounting seats 9021 are arranged with in parallel in the chamber, the end 902 of described moving contact mounting bracket 9, the Compress Spring 7 that spring pressed stud 8 is equipped with in two inside is provided with in spring mounting seat 9021, when moving contact 5 is in "on" position, the Compress Spring 7 be in chamber 902, mounting bracket 9 end spring mounting seat 9021 applies pressure to moving contact 5 by the moving contact pressure hook 501 of spring pressed stud 8 and moving contact 5 end, make moving contact 5 produce a downward pulling force, thus make moving contact 5 stably be operated in "on" position; When breaker of plastic casing be short-circuited huge electromagnetic repulsion force between its dynamic and static contact of fault moving contact 5 is scolded out and makes breaker of plastic casing be in open position time, the Compress Spring 7 be in chamber 902, mounting bracket 9 end spring mounting seat 9021 applies pressure to moving contact 5 by the moving contact pressure hook 501 of spring pressed stud 8 and moving contact 5 end, make moving contact 5 produce a pulling force upwards, thus make moving contact stably be operated in gate-dividing state.
Obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to execution mode.For those of ordinary skill in the field; can also make other changes in different forms on the basis of the above description; here exhaustive without the need to also giving all execution modes, and thus the apparent change of extending out or variation be still among the protection range of the invention.
Claims (4)
1. a moving contact mounting bracket for breaker of plastic casing, comprises two, left and right and is provided with the vertical sidewall of shaft hole and is connected the chamber, the end of two sidewalls, it is characterized in that: described moving contact mounting bracket is formed by zinc alloy diecasting, and surface is provided with coating layer.
2. the moving contact mounting bracket of breaker of plastic casing according to claim 1, is characterized in that: be respectively provided with a columniform connection inserting column on the shaft hole top of described two sidewall outer walls and two sides.
3. the moving contact mounting bracket of breaker of plastic casing according to claim 1, is characterized in that: be provided with two square connection inserting columns in the shaft hole bottom of described two sidewall outer walls.
4. the moving contact mounting bracket of breaker of plastic casing according to claim 1, is characterized in that: in described chamber, the end, be provided with spring mounting seat.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947346.7A CN105374636A (en) | 2015-12-17 | 2015-12-17 | Moving contact installation support of plastic casing breaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510947346.7A CN105374636A (en) | 2015-12-17 | 2015-12-17 | Moving contact installation support of plastic casing breaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105374636A true CN105374636A (en) | 2016-03-02 |
Family
ID=55376731
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510947346.7A Pending CN105374636A (en) | 2015-12-17 | 2015-12-17 | Moving contact installation support of plastic casing breaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105374636A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170651A (en) * | 2016-03-07 | 2017-09-15 | 浙江正泰电器股份有限公司 | The turning gear of breaker |
| CN108878230A (en) * | 2018-08-23 | 2018-11-23 | 无锡新宏泰电器科技股份有限公司 | A kind of position limiting structure of contact of breaker |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5646586A (en) * | 1995-11-01 | 1997-07-08 | General Electric Company | Electronic trip unit conversion kit for high ampere-rated circuit breakers |
| CN101162667A (en) * | 2006-10-13 | 2008-04-16 | Abb服务有限公司 | Low-voltage device with reinforced rotating element |
| CN101315852A (en) * | 2007-05-29 | 2008-12-03 | 浙江正泰电器股份有限公司 | Contact system of plastic case breaker |
| CN101465233A (en) * | 2007-12-18 | 2009-06-24 | 松下电器产业株式会社 | Rotating operation type electronic component, and electronic device including the same |
| CN205211675U (en) * | 2015-12-17 | 2016-05-04 | 北京明日电器设备有限责任公司 | Moulded case circuit breaker's moving contact installing support |
-
2015
- 2015-12-17 CN CN201510947346.7A patent/CN105374636A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5646586A (en) * | 1995-11-01 | 1997-07-08 | General Electric Company | Electronic trip unit conversion kit for high ampere-rated circuit breakers |
| CN101162667A (en) * | 2006-10-13 | 2008-04-16 | Abb服务有限公司 | Low-voltage device with reinforced rotating element |
| CN101315852A (en) * | 2007-05-29 | 2008-12-03 | 浙江正泰电器股份有限公司 | Contact system of plastic case breaker |
| CN101465233A (en) * | 2007-12-18 | 2009-06-24 | 松下电器产业株式会社 | Rotating operation type electronic component, and electronic device including the same |
| CN205211675U (en) * | 2015-12-17 | 2016-05-04 | 北京明日电器设备有限责任公司 | Moulded case circuit breaker's moving contact installing support |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107170651A (en) * | 2016-03-07 | 2017-09-15 | 浙江正泰电器股份有限公司 | The turning gear of breaker |
| CN107170651B (en) * | 2016-03-07 | 2019-09-06 | 浙江正泰电器股份有限公司 | The turning gear of breaker |
| CN108878230A (en) * | 2018-08-23 | 2018-11-23 | 无锡新宏泰电器科技股份有限公司 | A kind of position limiting structure of contact of breaker |
| CN108878230B (en) * | 2018-08-23 | 2024-04-16 | 无锡新宏泰电器科技股份有限公司 | Limiting structure of breaker contact |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into 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: 20160302 |