CN107808790A - Breaker of plastic casing structure of contact terminal magnet assemblies - Google Patents
Breaker of plastic casing structure of contact terminal magnet assemblies Download PDFInfo
- Publication number
- CN107808790A CN107808790A CN201711144653.7A CN201711144653A CN107808790A CN 107808790 A CN107808790 A CN 107808790A CN 201711144653 A CN201711144653 A CN 201711144653A CN 107808790 A CN107808790 A CN 107808790A
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- CN
- China
- Prior art keywords
- iron core
- shell
- determination
- magnet assemblies
- breaker
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Classifications
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- 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
- H01H9/30—Means for extinguishing or preventing arc between current-carrying parts
- H01H9/44—Means for extinguishing or preventing arc between current-carrying parts using blow-out magnet
-
- 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
- H01H73/18—Means for extinguishing or suppressing arc
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- Electromagnets (AREA)
- Breakers (AREA)
Abstract
The present invention relates to breaker of plastic casing structure of contact terminal magnet assemblies, including iron core more than two panels, in addition to the shell unshakable in one's determination for installation unshakable in one's determination, shell unshakable in one's determination have the installation cavity for installation unshakable in one's determination；Each iron core is installed in the installation cavity of shell unshakable in one's determination during installation, magnet assemblies is formed, magnet assemblies is installed in static contact afterwards, is realized by shell unshakable in one's determination to each positioning unshakable in one's determination.Compared to prior art, magnet assemblies are monolithic construction, easy for installation, and each positioning unshakable in one's determination is firm.
Description
Technical field
The present invention relates to a kind of magnet assemblies being used on the contact of breaker of plastic casing.
Background technology
Application of the low-pressure plastic shell circuit breaker in low-voltage distribution system is more and more extensive, and it is responsible for protection and control circuit
Dual role, security, dependable with function to whole line system play vital effect, breaker structure
It is different also very big on properties of product influence.Existing low-pressure plastic shell circuit breaker contact system is mainly by moving contact and static contact group
Into, breaker, moment to the arc blow-out power very little of electric arc, greatly reduces the breaking capacity of breaker after moving contact reprimand is opened, and
Reliable breaking is not high.
The background technology portion for the Chinese utility model patent that notification number is CN205582867U, the day for announcing is 2016.09.14
Divide and disclose a kind of breaker of plastic casing magnetic blow-out structure, including iron core more than static contact and two panels, one end of static contact is U-bend
Roll over end, iron core shares six, wherein four vertical arrays in the cavity at U-shaped bending end, in addition two panels set up separately static contact it is left,
Right side, six iron cores together form into the magnet assemblies of semi-closed structure.
Breaking capacity that existing breaker of plastic casing magnetic blow-out structure can preferably solve breaker is low, reliable breaking is not high
The problem of；But for magnet assemblies, also complicated in the presence of location structure unshakable in one's determination, the positioning unshakable in one's determination in static contact
The problem of less reliable.
The content of the invention
It is an object of the invention to provide a kind of breaker of plastic casing structure of contact terminal magnet assemblies, to solve existing magnetic blow-out
Location structure unshakable in one's determination existing for component is complicated, the insecure problem of positioning.
To achieve the above object, the scheme 1 of breaker of plastic casing structure of contact terminal magnet assemblies of the invention is：Plastic housing open circuit
Device structure of contact terminal includes iron core more than two panels, in addition to the shell unshakable in one's determination for installation unshakable in one's determination, shell tool unshakable in one's determination with magnet assemblies
There is the installation cavity for installation unshakable in one's determination.
Scheme 2 is, according to the magnet assemblies described in scheme 1, the shell unshakable in one's determination is provided with or shell unshakable in one's determination and iron core
On be equipped with the static contact in structure of contact terminal it is contact bottom outlet position correspondence, in structure of contact terminal locating dowel insert
Magnet bottom outlet.
Scheme 3 is, according to the magnet assemblies described in scheme 2, the iron core shell is opening up rectangular housing, iron core
The bottom wall of shell is provided with housing bottom outlet, and magnet bottom outlet includes housing bottom outlet, and each iron core is set perpendicular to the bottom wall of iron core shell.
Scheme 4 is, according to the magnet assemblies described in scheme 3, the bottom of the iron core is provided with the end for the locating dowel
The groove of insertion.
Scheme 5 is, according to the magnet assemblies described in scheme 4, two vertical edges of the iron core be provided be used for outside iron core
The spacing step of the top backstop of shell, step have stop surface directed downwardly.
Scheme 6 is that, according to the magnet assemblies described in scheme 3 or 4 or 5, the iron core is provided with the plate face perpendicular to iron core
The rivet of setting, the side wall of the iron core shell are provided with the otch for rivet insertion upward, iron core shell
Apply axial tension for rivet close to the end face of the otch.
Scheme 7 is, according to the magnet assemblies described in scheme 6, the rivet has spaced two, is arranged on iron
Otch in the same side wall of core housing has two, and each otch corresponds with each rivet.
Scheme 8 is, according to the magnet assemblies described in scheme 7, is connected with the lower opening's edge of the otch towards the iron core
The flanging of the outside turnover of shell.
The beneficial effects of the invention are as follows：Magnet assemblies include iron core more than two panels and the shell unshakable in one's determination for installation unshakable in one's determination,
Each iron core is installed in the installation cavity of shell unshakable in one's determination during installation, magnet assemblies is formed, magnet assemblies is installed to stationary contact afterwards
In head, realized by shell unshakable in one's determination to each positioning unshakable in one's determination.Compared to prior art, magnet assemblies are monolithic construction, installation
It is convenient, and each positioning unshakable in one's determination is firm.
Further, shell unshakable in one's determination is provided with or shell unshakable in one's determination is with being equipped with magnet bottom outlet, locating dowel insertion on iron core
In magnet bottom outlet；First locating dowel is unloaded during dismounting, magnet assemblies can translate out from static contact.Compared to prior art, magnetic
Iron component attachment structure is relatively simple, and dismounting is more convenient.
Further, the two of iron core vertical sides are provided with and matched somebody with somebody when iron core is installed for the top surface backstop with iron core shell
The step of conjunction；Increase the positioning to iron core, ensure each iron core alignment being set up in parallel, ensure iron core using effect.
Further, iron core is provided with rivet, and iron core shell is provided with otch, and iron core is arranged in rivet during assembling
Portion, the end of rivet is pressed on the end face of close otch of iron core shell after rivet is tensed；Iron core is linked to be with iron core shell
One, connection are firm.
Brief description of the drawings
Fig. 1 is installation diagram of the embodiment one of the magnet assemblies of the present invention in breaker of plastic casing structure of contact terminal；
Installation diagrams of the Fig. 2 between magnet assemblies and static contact and support member；
Fig. 3 is the stereogram of static contact；
Fig. 4 is the stereogram of support member；
Fig. 5 is Fig. 4 upward view；
Fig. 6 is the stereogram of iron core shell；
Fig. 7 is the stereogram of iron core.
Embodiment
Embodiments of the present invention are described further below in conjunction with the accompanying drawings.
The embodiment one of the breaker of plastic casing structure of contact terminal magnet assemblies of the present invention, as shown in Figures 1 to 7, plastic housing is broken
Road device structure of contact terminal includes breaker body 16, static contact 1 and support member 6, and one end of static contact 1, which is provided with, to be used for and breaker
Connecting hole, the other end of pedestal connection are U-shaped bending end, and U-shaped bending end has U-shaped cavity, and the top at U-shaped bending end, which is provided with, draws
Arc angle 2 and silver point 3；One end of support member 6 is used to be supported U-shaped bending end, and supporting surface is provided with the positioning upwardly extended
Post 12, the bottom of the other end are provided with two connecting holes 17 for being used for being connected with breaker body 16.
The bottom wall of U-shaped bending end is provided with the contact bottom outlet 11 passed through for locating dowel 12, and locating dowel 12 is that cross section is waist
Circular flat post, locating dowel 12 is hollow structure, and contact bottom outlet 11 is mounting hole.Breaker of plastic casing structure of contact terminal also includes setting
The magnet assemblies in the U-shaped cavity of U-shaped bending end are put, magnet assemblies include more than the two pieces iron cores 4 being set up in parallel and for iron
The iron core shell 5 that core 4 is installed.
Iron core 4 in the present embodiment is platy structure, and iron core shell 5 is opening up rectangular housing, iron core shell 5
Bottom wall is provided with the housing bottom outlet 8 passed through for locating dowel 12；Iron core 4 is set in iron core shell 5 perpendicular to the bottom surface of iron core shell 5
Put and perpendicular with locating dowel 12.The open-topped interior opening's edge of iron core shell 5 is provided with interior chamfering 7, facilitates iron core 4 to pacify
Dress.
The bottom of iron core 4 is provided with the U-shaped groove 15 of one end insertion of the insertion iron core shell 5 for locating dowel 12；Iron core 4
The bottom of two vertical sides is provided with when installing iron core 4 for the step 10 that backstop is carried out with the top of iron core shell 5, step 10
With step surface directed downwardly.
Iron core shell 5 and iron core 4 in the present embodiment use rivet interlacement, and iron core 4 is provided with two rivetings being set up in parallel
Nail perforation 9, rivet 9 is circular hole；The top of iron core shell 5 is provided with rectangular slits 13, and rectangular slits 13 are embedded in for rivet, iron
The end face of the close rectangular slits 13 of core housing 5 tenses for rivet, and the rectangular slits 13 in same side wall have spaced two
Individual, the lower opening's edge of each rectangular slits 13 is connected with the flanging 14 of the outside turnover towards iron core shell 5.
During assembling, first each iron core 4 is installed in iron core shell 5, iron core 4 and iron core shell 5 are connected as a single entity with rivet,
Iron core shell 5 is installed in the U-shaped cavity of static contact 1, housing bottom outlet 8 and the position correspondence of contact bottom outlet 11, static contact 1 pacified
It is attached on support member 6, the upper end of locating dowel 12 is inserted into the U-shaped groove 15 of the bottom of iron core 4；By 5 groups of iron core 4 and iron core shell
Into the positions of magnet assemblies fixed on static contact 1.
Compared to prior art, magnet assemblies are monolithic construction, easy for installation, and each positioning unshakable in one's determination is firm；Further
, magnet assemblies are positioned using locating dowel 12, simple in construction, convenient disassembly, stable performance, magnetic blow-out riveting part can strengthen
Magnetic field, magnetic conduction effect is played, pilot arc is rapidly introduced into arc-chutes, very big to the arc blow-out power of electric arc, can effectively be gone out
Arc, so as to strengthen the reliable breaking of breaker, and improve its breaking capacity.
In addition, iron core 4 is higher by rivet interlacement one, bonding strength with iron core shell 5.Due to the U-shaped of U-shaped bending end
Height space in cavity is limited, and iron core 4 can increase the quantity of settable iron core 4 using the form being vertically arranged.
Embodiment two, the difference of embodiment two and embodiment one are：Core assembly only includes more than two pieces of iron
Core, each iron core is folded along the vertical direction in the U-shaped bending end of static contact to be set, and is provided with the middle part of iron core and is passed through from the bottom to top for locating dowel
Centre bore.Alternatively, it is also possible to set iron core shell in the periphery of iron core, the side wall of iron core shell is provided with support member
The housing bore that locating dowel passes through.
Embodiment three, the difference of embodiment three and embodiment one are：Iron core shell can also be arranged to cross section
For the rectangular sleeve of rectangle, rectangular sleeve has the centre bore of up/down perforation, and each iron core arrangement is in the centre bore of rectangular sleeve.
Example IV, the difference of example IV and embodiment one are：In the middle part of iron core and in the side wall of iron core shell
It is respectively equipped with and supplies bolt penetration hole, iron core is installed in iron core shell during assembling, then screw is penetrated by the side of iron core shell,
Screw sequentially passes through each iron core, and the other end of screw stretches out iron core shell, fixed screw with nut.
Embodiment five, the difference of embodiment five and embodiment one are：First with screw or rivet by more than two panels
Iron core link into an integrated entity, afterwards by integral installation unshakable in one's determination into shell unshakable in one's determination, shell unshakable in one's determination is positioned by locating dowel, iron core by iron
Heart shell positions, and is not required to be provided for the otch for avoiding rivet/screw on shell unshakable in one's determination.
Claims (8)
1. breaker of plastic casing structure of contact terminal magnet assemblies, including iron core more than two panels, it is characterised in that：Also include for unshakable in one's determination
The shell unshakable in one's determination of installation, shell unshakable in one's determination have the installation cavity for installation unshakable in one's determination.
2. breaker of plastic casing structure of contact terminal magnet assemblies according to claim 1, it is characterised in that：The shell unshakable in one's determination
It is provided with or shell unshakable in one's determination on iron core with is equipped with and contact bottom outlet position correspondence, the confession on the static contact in structure of contact terminal
The magnet bottom outlet of locating dowel insertion in structure of contact terminal.
3. breaker of plastic casing structure of contact terminal magnet assemblies according to claim 2, it is characterised in that：The iron core shell
For opening up rectangular housing, the bottom wall of iron core shell is provided with housing bottom outlet, and magnet bottom outlet includes housing bottom outlet, each iron core
Bottom wall perpendicular to iron core shell is set.
4. breaker of plastic casing structure of contact terminal magnet assemblies according to claim 3, it is characterised in that：The bottom of the iron core
Portion is provided with the groove inserted for the end of the locating dowel.
5. breaker of plastic casing structure of contact terminal magnet assemblies according to claim 4, it is characterised in that：The two of the iron core
Vertical edge, which is provided with, is used for the step spacing with the top backstop of iron core shell, and step has stop surface directed downwardly.
6. the breaker of plastic casing structure of contact terminal magnet assemblies according to claim 3 or 4 or 5, it is characterised in that：The iron
Core is provided with the rivet set perpendicular to the plate face of iron core, and the side wall of the iron core shell is provided with the confession riveting upward
Embedded otch is followed closely, the end face of the close otch of iron core shell applies axial tension for rivet.
7. breaker of plastic casing structure of contact terminal magnet assemblies according to claim 6, it is characterised in that：The rivet
There are spaced two, the otch being arranged in the same side wall of iron core shell there are two, each otch and each rivet one
One correspondence.
8. breaker of plastic casing structure of contact terminal magnet assemblies according to claim 7, it is characterised in that：Under the otch
The flanging of the outside turnover towards the iron core shell is connected with opening's edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144653.7A CN107808790B (en) | 2017-11-17 | 2017-11-17 | Moulded case circuit breaker magnet subassembly for contact structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711144653.7A CN107808790B (en) | 2017-11-17 | 2017-11-17 | Moulded case circuit breaker magnet subassembly for contact structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN107808790A true CN107808790A (en) | 2018-03-16 |
| CN107808790B CN107808790B (en) | 2019-12-20 |
Family
ID=61589787
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711144653.7A Active CN107808790B (en) | 2017-11-17 | 2017-11-17 | Moulded case circuit breaker magnet subassembly for contact structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107808790B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2598125Y (en) * | 2003-05-17 | 2004-01-07 | 浙江德力西电器股份有限公司 | Magnetic force driver contact system for plastic case circuit breaker |
| CN102427006A (en) * | 2011-11-08 | 2012-04-25 | 江苏辉能电气有限公司 | Contact structure for low-current molded case low-voltage circuit breaker |
| CN205069553U (en) * | 2015-09-25 | 2016-03-02 | 浙江上图电气科技有限公司 | Moulded case circuit breaker contact means |
| CN205081080U (en) * | 2015-11-06 | 2016-03-09 | 精益联合集团有限公司 | Static contact |
| CN106971928A (en) * | 2017-05-18 | 2017-07-21 | 北京北元电器有限公司 | Arc extinguishing structure and breaker of plastic casing applied to breaker of plastic casing |
| EP3232457A1 (en) * | 2016-04-15 | 2017-10-18 | Schneider Electric Industries SAS | Dc electrical circuit breaker |
| CN208000850U (en) * | 2017-11-17 | 2018-10-23 | 河南森源电气股份有限公司 | A kind of breaker of plastic casing structure of contact terminal magnet assemblies |
-
2017
- 2017-11-17 CN CN201711144653.7A patent/CN107808790B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2598125Y (en) * | 2003-05-17 | 2004-01-07 | 浙江德力西电器股份有限公司 | Magnetic force driver contact system for plastic case circuit breaker |
| CN102427006A (en) * | 2011-11-08 | 2012-04-25 | 江苏辉能电气有限公司 | Contact structure for low-current molded case low-voltage circuit breaker |
| CN205069553U (en) * | 2015-09-25 | 2016-03-02 | 浙江上图电气科技有限公司 | Moulded case circuit breaker contact means |
| CN205081080U (en) * | 2015-11-06 | 2016-03-09 | 精益联合集团有限公司 | Static contact |
| EP3232457A1 (en) * | 2016-04-15 | 2017-10-18 | Schneider Electric Industries SAS | Dc electrical circuit breaker |
| CN106971928A (en) * | 2017-05-18 | 2017-07-21 | 北京北元电器有限公司 | Arc extinguishing structure and breaker of plastic casing applied to breaker of plastic casing |
| CN208000850U (en) * | 2017-11-17 | 2018-10-23 | 河南森源电气股份有限公司 | A kind of breaker of plastic casing structure of contact terminal magnet assemblies |
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| Publication number | Publication date |
|---|---|
| CN107808790B (en) | 2019-12-20 |
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