CN209282157U - A kind of moving contact of breaker structure - Google Patents
A kind of moving contact of breaker structure Download PDFInfo
- Publication number
- CN209282157U CN209282157U CN201822028041.8U CN201822028041U CN209282157U CN 209282157 U CN209282157 U CN 209282157U CN 201822028041 U CN201822028041 U CN 201822028041U CN 209282157 U CN209282157 U CN 209282157U
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- contact
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- spring
- moving contact
- support
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Abstract
The utility model discloses a kind of moving contact of breaker structures, it includes that contact supports (1), several moving contact contact chips (2), several touch springs (3), contact chip installation axle (4) and clamping plate (5), the contact-support (1) and clamping plate (5) are installed on together, several moving contact contact chips (2) can rotate on the contact chip installation axle (4) and around contact chip installation axle (4) side by side, contact chip installation axle (4) both ends are in the two side arms (501) of the clamping plate (5), it is characterized by: several touch springs (3) are in the spring mounting hole (101) on the contact-support (1), described several touch springs (3) one end resists several moving contact contact chips (2), the other end resists detachable spring limiting part (6).This moving contact is easy to assembly, and touch spring dismounts maintainability and is easy, and manufacturing cost is cheap, and contact system stability is higher.
Description
Technical field
The utility model belongs to low voltage electrical apparatus technology field, is specifically exactly to be related to a kind of moving contact of breaker structure.
Background technique
Breaker is controller switching equipment important in low-voltage distribution system, as the requirement of electric system is continuously improved, to electricity
The performance requirement of road protective switch is higher and higher, and miniaturization, high-performance, modularization, high reliability are breaker development at this stage
Direction.Contact system is the core component of breaker, and touch spring parameter and contact end pressure directly close in contact system
It is to be resistant to performance in short-term to breaker.
Raising breaker is resistant to performance in short-term can increase the selective protection range of breaker, effectively improve very poor protection
Reliability, prevent the generation of the accidents such as overstepping.It can be effectively reduced in the prior art by increasing moving contact piece quantity
Electrodynamic repulsion force, and then make breaker in the case where not improving contact end pressure, can by higher KA Rms, but
In the case where breaker given volume, this scheme certainly will will lead to the reduction of moving contact piece thickness, in turn result in matched
Spring installation space reduces, and the ratio of height to diameter of spring increases, and touch spring force value and service life are difficult to ensure, eventually lead to contact system
Dynamic, thermal stability reduces, and reduces so as to cause breaker service life and reliability.
It is specifically exactly that as shown in figure 1 and 2, the movable contact system of existing omnipotent breaker includes moving contact
Piece, touch spring, contact-support, clamping plate, axis, touch spring be located at mounting groove and moving contact piece on contact-support groove it
Between；It is limited by grid intensity and structure limitation, the installation space of touch spring is extremely limited, causes spring ratio of height to diameter excessive, no
Stablize, is easy failure；And in the actual production process, touch spring need to be mounted so that be easy to appear in slot installation it is not in place
The case where and be difficult to find such installation situation not in place, the final performance for reducing breaker and service life；Simultaneously it is existing this
Kind of moving contact is in initial setup process, and due to the presence of touch spring initial pressure, in installation process, contact chip, contact chip are solid
Dead axle and clamping plate are in stress, exacerbate field erected difficulty, cause the reduction of assembly efficiency and the increasing of product cost
Add；And the assembly of contact system correlated parts is realized positioning by tapping screw afterwards in place, is fixed, it is this to be fixed using tapping screw
Mode be it is irreversible, when needing to replace touch spring or safeguarded, dismantle need replacing after tapping screw it is new
Contact-support be just able to satisfy matching requirements, cause the increase of Material Cost, it is secondary to assemble the failure for more exacerbating touch spring
Risk, the presence of installation difficulty further improve the cost of contact system maintenance.
On the other hand, there are larger gaps between moving contact piece and contact grid, when product undertakes short circuit current, contact chip
Between existing electric power cause contact chip laterally offset, make dynamic/static contact contact resistance increase, eventually lead to circuit contact electricity
Resistance increase, product heating burnout, increase the security risk of product.
Utility model content
The purpose of this utility model is difficult to install aiming at the touch spring of above-mentioned existing moving contact, moving contact piece with
It is easy that the technological deficiency of moving contact piece offset generation safety accident occurs in short circuit current there are larger gap between contact grid,
A kind of moving contact of breaker structure is provided, one end mounting means of touch spring is changed to removable, passes through limit shaft and spring
The fit structure of locating part realizes the fast assembling-disassembling of touch spring, and do not destroyed in disassembly process contact system components and
Contact system reliability stability, improves contact system stability and reliability is effectively reduced while ensuring properties of product
The assembly difficulty of contact system promotes assembly efficiency, saves production and maintenance cost；The installation side of moving contact piece is improved simultaneously
Formula avoids it from being shifted by electrodynamic action and generates security risk.
Technical solution
In order to achieve the above technical purposes, a kind of moving contact of breaker structure provided by the utility model, it includes contact
Support, several moving contact contact chips, several touch springs, contact chip installation axle and clamping plate, the contact-support and Boards wall
It is fitted together, several moving contact contact chips are mounted in the contact chip installation axle side by side and can turn around contact chip installation axle
Dynamic, contact chip installation axle both ends are in the two side arms of the clamping plate, it is characterised in that: several touch springs are mounted in
In spring mounting hole on the contact-support, described several touch spring one end resist several moving contact contact chips, separately
One end resists detachable spring limiting part.
Further, the spring limiting part is in the limiting slot on the contact-support head, the spring limiting part
Pressure can be provided to several touch springs on limit shaft, the limit shaft both ends are mounted in the limiting slot two
It is limited in mounting hole on side wall using circlip.
Further, the contact head of several moving contact contact chips is located at several contact grid shapes on the contact-support
At several compartments in, the plate faces of several contact grid, which is equipped with lug boss, can clamp therebetween moving contact contact
Piece.
Further, the spring limiting part is equipped with guide ledges, is equipped with and the guide ledges pair in the limiting slot
The guiding groove answered can be packed into the limiting slot spring limiting part and carry out guide-localization.
Further, shield is installed on the contact-support.
The utility model compared with the existing technology in moving contact structure have the advantages that the following aspects:
1, moving contact installation method is changed, the assembly of core component touch spring and other parts are separated into independent assembly,
It realizes Fast Installation, the disassembly, replacement of touch spring, and does not influence properties of product.Can save rapidoprint, save processing,
Maintenance cost.
2, touch spring is avoided to assemble situation not in place, before touch spring assembly, moving contact contact chip and contact are supported
It is reliably fixed, it is only necessary to touch spring is put into spring mounting hole and is fixed, touch spring installation difficulty is reduced, and
Ensure spring reliable assembling, the final performance for guaranteeing breaker and service life.
3, change contact grid structure, under the premise of not increasing cost, avoid moving contact contact chip by electric power and
Caused laterally offset avoids the increase of loop contact resistance, reduces product heating burnout risk, eliminates product safety
Hidden danger.
Detailed description of the invention
Fig. 1 is existing moving contact structure schematic diagram.
Fig. 2 is existing touch spring mounting structure schematic diagram.
Fig. 3 is moving contact structure perspective view of the explosion in the utility model embodiment.
Fig. 4 is spring position of mounting hole in the utility model embodiment.
Fig. 5 is touch spring mounting structure schematic diagram position in the utility model embodiment.
Fig. 6 is moving contact structure structural schematic diagram in the utility model embodiment.
Fig. 7 is contact grid positional structure schematic diagram in the utility model embodiment.
Fig. 8 a is the utility model embodiment protrusions portion positional structure schematic diagram.
Fig. 8 b is the enlarged drawing in attached drawing 8a at A.
Specific embodiment
With reference to the accompanying drawings and examples, the utility model is described in further details.
Embodiment
As shown in figures 3 and 4, a kind of moving contact of breaker structure, it includes contact-support 1, several moving contact contact chips
2, several touch springs 3, contact chip installation axle 4 and clamping plate 5, the contact-support 1 and clamping plate 5 are installed on one with screw 10
It rises, several moving contact contact chips 2 can rotate in the contact chip installation axle 4 and around contact chip installation axle 4, institute side by side
4 both ends of contact chip installation axle are stated in the two side arms 501 of the clamping plate 5, shield 9 is installed on the contact-support 1
On.Wherein, several touch springs 3 are in the spring mounting hole 101 on the contact-support 1, several contact bullets
3 one end of spring resists several moving contact contact chips 2, and the other end resists detachable spring limiting part 6.
As depicted in figures 5 and 6, the spring limiting part 6 is in the limiting slot 102 on 1 head of contact-support, institute
Pressure, 7 liang of the limit shaft can be provided to several touch springs 3 on limit shaft 7 by stating spring limiting part 6
End is limited in the mounting hole 102a01 on the 102 two sidewalls 102a of limiting slot using circlip 8.The spring limiting part 6
Guide ledges 601 are equipped with, being equipped with guiding groove 102b corresponding with the guide ledges 601 in the limiting slot 102 can
The spring limiting part 6 is packed into the limiting slot 102 and carries out guide-localization.
As shown in Fig. 7, the contact head 201 of several moving contact contact chips 2 is located at several on the contact-support 1
In several compartment 103a that contact grid 103 is formed, as shown in attached drawing 8a and 8b, the plate face of several contact grid 103
103b, which is equipped with lug boss 103b01, can clamp therebetween moving contact contact chip 2.
The installation process of the present embodiment is: as shown in Fig. 4, first will be except spring limiting part 6, several touch springs 3, limit
Outside the axis 7 of position, other parts are installed in place.As shown in Fig. 5, several touch springs 3 are packed into contact by spring mounting hole 101
In support 1, compression touch spring 3 arrives suitable position to spring limiting part 6 downwards, it is ensured that hole 1 and peace on spring limiting part 6
After dress hole 102a01 is concentric, limit shaft 7 passes through Kong Kongyi 602 and mounting hole 102a01, realizes the fixation of spring limiting part 6, leads
The spring limiting part 6 can be packed into the limiting slot 102 be oriented to and determined to boss 601 and guiding groove 102b cooperation
Position, the effect for realizing guiding and the overturning of anti-fixed block was assembled in spring limiting part 6, and circlip 8 is placed in 7 both ends circlip of limit shaft
In slot, 7 axial float of limit shaft is limited；It completes after entire assembly as shown in Fig. 6, meanwhile, such as attached drawing 7, shown in 8a and 8b, institute
The plate face 103b for stating several contact grid 103, which is equipped with lug boss 103b01, can clamp therebetween moving contact contact chip
2.In the case where ensuring several moving contact contact chips 2 around contact chip 4 flexible rotating of installation axle, moving contact contact chip is effectively limited
2 axial direction surveys inclined and play.
The present embodiment structure depicted in this specification institute accompanying drawings, ratio, size etc., only to cooperate specification revealed interior
Hold, so that those skilled in the art understands and reads, is not intended to limit the utility model enforceable qualifications, therefore not
Has technical essential meaning, the modification of any structure, the change of proportionate relationship or the adjustment of size are practical new not influencing this
Under the effect of type can be generated and the purpose that can reach, it should all still fall in the revealed technology contents of the utility model and obtain and can contain
In the range of lid.Meanwhile it is cited such as "upper", "lower", "left", "right", " centre ", " clockwise ", " inverse time in this specification
The term of needle " etc. is merely convenient to being illustrated for narration, rather than to limit the enforceable range of the utility model, it is opposite to close
System is altered or modified, under the content of no substantial changes in technology, when being also considered as the enforceable scope of the utility model.
Claims (5)
1. a kind of moving contact of breaker structure, it includes contact-support (1), several moving contact contact chips (2), several touch springs
(3), contact chip installation axle (4) and clamping plate (5), the contact-support (1) and clamping plate (5) are installed on together, described several dynamic
Contact piece (2) can rotate on the contact chip installation axle (4) and around contact chip installation axle (4), the contact side by side
Piece installation axle (4) both ends are in the two side arms (501) of the clamping plate (5), it is characterised in that: several touch springs (3)
In spring mounting hole (101) on the contact-support (1), described several touch spring (3) one end resist described several
Moving contact contact chip (2), the other end resist detachable spring limiting part (6).
2. a kind of moving contact of breaker structure as described in claim 1, it is characterised in that: the spring limiting part (6) is mounted in
In limiting slot (102) on contact-support (1) head, the spring limiting part (6) can on limit shaft (7)
Pressure is provided to several touch springs (3), limit shaft (7) both ends are mounted in the limiting slot (102) two sidewalls
It is limited in mounting hole (102a01) on (102a) using circlip (8).
3. a kind of moving contact of breaker structure as described in claim 1, it is characterised in that: several moving contact contact chips
(2) contact head (201) is located at several compartments (103a) that several contact grid (103) are formed on the contact-support (1)
Interior, the plate face (103b) of several contact grid (103), which is equipped with lug boss (103b01), can clamp therebetween move
Contact piece (2).
4. a kind of moving contact of breaker structure as claimed in claim 2, it is characterised in that: set on the spring limiting part (6)
Have guide ledges (601), guiding groove (102b) corresponding with the guide ledges (601) is equipped in the limiting slot (102)
The spring limiting part (6) can be packed into the limiting slot (102) and carry out guide-localization.
5. a kind of moving contact of breaker structure as claimed in claim 2, it is characterised in that: shield (9) is installed on described
On contact-support (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822028041.8U CN209282157U (en) | 2018-12-04 | 2018-12-04 | A kind of moving contact of breaker structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822028041.8U CN209282157U (en) | 2018-12-04 | 2018-12-04 | A kind of moving contact of breaker structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209282157U true CN209282157U (en) | 2019-08-20 |
Family
ID=67609600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822028041.8U Active CN209282157U (en) | 2018-12-04 | 2018-12-04 | A kind of moving contact of breaker structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209282157U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111276376A (en) * | 2018-12-04 | 2020-06-12 | 上海良信电器股份有限公司 | Moving contact structure of circuit breaker |
-
2018
- 2018-12-04 CN CN201822028041.8U patent/CN209282157U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111276376A (en) * | 2018-12-04 | 2020-06-12 | 上海良信电器股份有限公司 | Moving contact structure of circuit breaker |
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