CN206040573U - Miniature circuit breaker's electromagnetic mechanism - Google Patents
Miniature circuit breaker's electromagnetic mechanism Download PDFInfo
- Publication number
- CN206040573U CN206040573U CN201621064535.6U CN201621064535U CN206040573U CN 206040573 U CN206040573 U CN 206040573U CN 201621064535 U CN201621064535 U CN 201621064535U CN 206040573 U CN206040573 U CN 206040573U
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- Prior art keywords
- yoke plate
- plate
- yoke
- iron core
- coil
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- 230000007246 mechanism Effects 0.000 title claims abstract description 22
- 230000003068 static effect Effects 0.000 claims abstract description 63
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 60
- 238000005452 bending Methods 0.000 claims abstract description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052709 silver Inorganic materials 0.000 claims abstract description 7
- 239000004332 silver Substances 0.000 claims abstract description 7
- 238000003466 welding Methods 0.000 claims description 30
- 238000007373 indentation Methods 0.000 claims description 11
- 229910000679 solder Inorganic materials 0.000 claims description 9
- 230000007704 transition Effects 0.000 claims description 6
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000009434 installation Methods 0.000 claims description 2
- 239000007787 solid Substances 0.000 claims 1
- 230000015572 biosynthetic process Effects 0.000 abstract 3
- 230000000694 effects Effects 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000006872 improvement Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910052742 iron Inorganic materials 0.000 description 2
- 238000010791 quenching Methods 0.000 description 2
- 230000000171 quenching effect Effects 0.000 description 2
- 230000001052 transient effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
Landscapes
- Electromagnets (AREA)
Abstract
The utility model discloses a miniature circuit breaker's electromagnetic mechanism, establish coil, quiet iron core on coil skeleton, move iron core, ejector pin, static contact, the setting silver contact and the wiring board of being qualified for the next round of competitions on the static contact including yoke, the coil skeleton who is equipped with the vestibule, cover, the yoke includes end yoke board, preceding yoke board, top yoke board and back yoke board, the formation of bending perpendicularly backward of the partial wall body of the bottom of preceding yoke board the formation of bending perpendicularly backward of end yoke board, the partial wall body on the top of preceding yoke board the formation of bending perpendicularly downwards of top yoke board, the partial wall body of rear end of top yoke board back yoke board, the left end of preceding yoke board is equipped with U type breach, and the bottom of back yoke board is equipped with bow -shaped breach. The utility model discloses the structure is miniaturized, can effectively reduce temperature rise and cost.
Description
Technical field
The utility model belongs to miniature circuit breaker technical field, and in particular to a kind of electromagnetic mechanism of miniature circuit breaker.
Background technology
The electromagnetic mechanism of miniature circuit breaker is to provide transient current protection, short circuit current protection, main to be tied using helix tube type
Structure.Traditional helix tube type structure is typically made up of coil, yoke, coil rack, dynamic iron core, static iron core, iron core spring, push rod,
Dynamic iron core, push rod are fixed together.
Under transient current, short circuit current, coil produces larger electromagnetic force, drives dynamic iron core to transport to static iron core direction
It is dynamic, therefore dynamic iron core drives push rod motion, push rod motion to trip operating mechanism, miniature circuit breaker disconnecting circuit.Dynamic iron core with
The sectional area of static iron core is bigger, and the electromagnetic force that coil is produced is bigger, and the less electromagnetic force of sectional area is less.
The iron core spring of the helix tube type electromagnetic system of design, static iron core were through on push rod in the past, and iron core spring
One end causes the diameter of bore of dynamic iron core, static iron core larger in dynamic iron core or static iron core, in order to ensure dynamic iron core, static iron core
Certain sectional area area, dynamic iron core, the external diameter of static iron core need more greatly, to cause the size of whole electromagnetic system bigger, small-sized
Breaker is difficult to smallerization.In addition, how to reduce the temperature rise of electromagnetic mechanism and cost be also current research main flow problem it
One.
Utility model content
The purpose of this utility model is to provide a kind of electromagnetic mechanism of the miniature circuit breaker of miniaturized structure.
The technical scheme for realizing the utility model purpose is：A kind of electromagnetic mechanism of miniature circuit breaker, including yoke, is provided with
The coil rack of vestibule, the coil being set on coil rack, static iron core, dynamic iron core, push rod, static contact, it is arranged on static contact
On silver contact and outlet terminal plate；Yoke includes bottom yoke plate, front yoke plate, top yoke plate and rear yoke plate；The portion of the bottom of front yoke plate
Vertical bending forms the bottom yoke plate to bulkhead body backward, and vertical bending forms the top to the part wall body on the top of front yoke plate backward
Yoke plate, the part wall body bending downward vertically for pushing up the rear end of yoke plate form the rear yoke plate；The left end of front yoke plate is provided with U-shaped lacking
Mouthful, the bottom of rear yoke plate is provided with arcuate indentation.
In such scheme, the center on the top of front yoke plate is provided with square breach；The center of the front end of top yoke plate is provided with
Rectangular indentation, the rectangular indentation of the top yoke plate are connected with the square breach of front yoke plate.
In such scheme, the bottom yoke plate of yoke, front yoke plate, top yoke plate and rear yoke plate enclose to form an accommodating cavity, coil
In the accommodating cavity.
In such scheme, static contact includes the welding section being fixedly installed on the yoke plate roof of bottom, from welding section forward downward
Extend the oblique line changeover portion for being formed, the contact being downwardly extending from oblique line changeover portion to support section, support from contact section to palintrope
Arc-shaped transition section and incline the striking section of extension from arc-shaped transition section rearwardly and upwardly that Qu Yanshen is formed；Coil by flat copper plate around
System is formed, and the front end of coil is provided with the front weld part for being weldingly fixed on static contact roof, and the front weld part is along bottom yoke plate
Horizontal direction arrange；
Being shaped as outlet terminal plate is step-like, including top rank plate, middle supporting plate and bottom rank plate；Top rank plate has to be used for and line
The welding plate portion that circle is weldingly connected；The rear end of coil is provided with for being welded and fixed the rear weld part being arranged in welding plate portion, the rear weldering
Socket part is arranged along the horizontal direction of bottom yoke plate.
In such scheme, welding section is flat segments；The left and right of static contact welding section to width there was only the width of bottom yoke plate
1/2nd, and positioned at the left half side of bottom yoke plate, the lower left of front yoke plate is provided with the peace for stretching out static contact welding section
Dress breach；The width in welding plate portion also only has 1/2nd of bottom yoke plate width, and the right half side setting just to bottom yoke plate, also ascends the throne
In the right half side dead astern of bottom yoke plate.
In such scheme, the bottom of front weld part and rear weld part is provided with the straight solder side for increasing contact area.
In such scheme, striking section is inclined upwardly and points to the welding section of static contact.
In such scheme, between the top rank plate of outlet terminal plate and bottom yoke plate, gap is left.
In such scheme, the support section that bottoms out of static contact is provided with caulking groove, and silver contact is set and is fixed in the caulking groove.
In such scheme, coil rack is arranged along the longitudinal direction, and the front end of coil rack is located at the rear side of front yoke plate, coil
The rear end of skeleton is located in the arcuate indentation of rear yoke plate.
In such scheme, the static setting of static iron core opposing yoke, static iron core include slide opening, for and coil rack fix connect
The connecting portion that connects, external diameter ring baffle portion and the limiting section in the U-shaped hole of front yoke plate more than coil rack external diameter；Static iron core
The portion of being connected through is fixed on the front end of the vestibule of coil rack.
In such scheme, the front end of push rod is provided with circular top plate, and middle-end is provided with traveller, and rear end is provided with caulking part.
In such scheme, the front end of dynamic iron core is provided with riveting portion, and middle-end is provided with sliding part, and rear end is provided with fore-set portion；Push rod
Caulking part back through static iron core slide opening and be connected with the riveting portion of dynamic iron core；Push rod relies on its traveller in the cunning of static iron core
Slide in hole；Dynamic iron core is slided in the vestibule of coil rack by its sliding part.
The utility model has following technique effect：(1) in yoke, the shape and structure of each yoke plate is designed, and ensure that entirety
The improvement minimized on the premise of support strength, is easily installed static contact, coil, coil rack, dynamic iron core, quiet iron again
Core and push rod.(2) static contact can be played the technique effect of magnetic quenching, namely be formed more due to its special planform
Good striking ability, further lifts the breaking capacity of breaker.(3) by the welding structure of improvement coil, so as to have more
Big solder side, effectively reduces the resistance at solder side, reduces temperature rise.(4) planform of static contact and outlet terminal plate had been both
Disclosure satisfy that water conservancy diversion intensity, again can effective material-saving, reduces cost.
Description of the drawings
Fig. 1 is a kind of dimensional structure diagram of the present utility model；
A kind of left views of the Fig. 2 for electromagnetic mechanism shown in Fig. 1；
A kind of explosive view of electromagnetic mechanism shown in Fig. 3 bitmaps 1.
Specific embodiment
(embodiment 1)
Fig. 1 to Fig. 3 shows a kind of specific embodiment of the present utility model.
As shown in Figure 1, the present embodiment is a kind of electromagnetic mechanism of miniature circuit breaker, as shown in Fig. 1 to Fig. 3, including yoke
1st, the coil rack 2 for being provided with vestibule 21, the coil 3 being set on coil rack, the static iron core 4 for being provided with slide opening 41, setting are online
Dynamic iron core 5 in ring framework vestibule, the push rod 6 slided along slide opening 41, static contact 7, the silver contact 8 being arranged on static contact, go out
Line terminal plate 9.
Yoke 1 is fixedly installed in the housing of miniature circuit breaker when in use；The yoke 1 of the present embodiment includes bottom yoke plate
11st, front yoke plate 12, top yoke plate 13 and rear yoke plate 14；Vertical bending forms the bottom yoke to the part wall body of the bottom of front yoke plate backward
Plate, vertical bending forms the top yoke plate backward for the part wall body on the top of front yoke plate, push up yoke plate rear end part wall body to
Vertical bending forms the rear yoke plate down；The left end of front yoke plate is provided with U-shaped breach 121, and the center on the top of front yoke plate is provided with
Square breach 122；The bottom of yoke plate is provided with arcuate indentation 141 afterwards；The center of the front end of top yoke plate is provided with rectangular indentation 131,
The rectangular indentation of the top yoke plate is connected with the square breach of front yoke plate.
The bottom yoke plate 11 of yoke, front yoke plate 12, top yoke plate 13 and rear yoke plate 14 enclose to form an accommodating cavity, and coil is located at
In the accommodating cavity.
Static contact 7 includes the welding section 71 being fixedly installed on the yoke plate roof of bottom, extends to be formed from welding section forward downward
Oblique line changeover portion 72, the contact being downwardly extending from oblique line changeover portion supports section 73, supports that from contact section is bent backward and prolong
Stretch the arc-shaped transition section 74 to be formed and the striking section 75 for inclining extension from arc-shaped transition section rearwardly and upwardly；Striking section is inclined upwardly
Point to the welding section of static contact.Welding section is flat segments.Static contact can play magnetic quenching due to its special planform
Technique effect, namely form more preferable striking ability, further lift the breaking capacity of breaker.
The left and right of static contact welding section to width only have bottom yoke plate width 1/2nd, and positioned at a left side for bottom yoke plate
Half side, the lower left of front yoke plate is provided with the installation gap 123 for stretching out static contact welding section.Static contact bottoms out support section
Caulking groove 76 is provided with, silver contact 8 is set and is fixed in the caulking groove.
Being shaped as outlet terminal plate 9 is step-like, including top rank plate 91, middle supporting plate 92 and bottom rank plate 93；Outlet terminal plate
Top rank plate and bottom yoke plate between leave gap.Top rank plate has the welding plate portion 911 for being weldingly connected with coil, the welding plate portion
Width also there was only 1/2nd of bottom yoke plate width, and the right half side setting just to bottom yoke plate, namely positioned at the right side of bottom yoke plate
Half side dead astern.
Coil is formed by flat copper plate coiling, and the front end of coil is provided with the front welding for being weldingly fixed on static contact roof
Portion 31, the front weld part are arranged along the horizontal direction of bottom yoke plate.The rear end of coil is provided with and is arranged on outlet and connects for being welded and fixed
Rear weld part 32 on line plate, the rear weld part are arranged along the horizontal direction of bottom yoke plate.
The horizontal direction is the direction vertical with fore-and-aft direction, namely the left and right directions of bottom yoke plate.
In the present embodiment, the bottom of front weld part and rear weld part is provided with straight solder side, for increasing contact area,
So as to have bigger solder side, reduce the resistance at solder side, reduce temperature rise.
Coil rack is arranged along the longitudinal direction, and the front end of coil rack is located at the rear side of front yoke plate, the rear end of coil rack
In the arcuate indentation of rear yoke plate.
The static setting of static iron core opposing yoke, static iron core also include for be fixedly connected with coil rack connecting portion 42,
Ring baffle portion 43 and limiting section 44 positioned at front yoke plate U-shaped hole in of the external diameter more than coil rack external diameter；Static iron core passes through which
Connecting portion is fixed on the front end of the vestibule 21 of coil rack.
The front end of push rod is provided with circular top plate 61, and middle-end is provided with traveller 62, and rear end is provided with caulking part 63；The front end of dynamic iron core
Riveting portion 51 is provided with, middle-end is provided with sliding part 52, and rear end is provided with fore-set portion 53；The caulking part 63 of push rod backs through static iron core
Slide opening 41 is simultaneously connected with the riveting portion of dynamic iron core；Push rod slides in the slide opening of static iron core by its traveller；Dynamic iron core relies on which
Sliding part slides in the vestibule of coil rack.
In the present embodiment, the shape of yoke is mainly designed to be easily installed static contact, coil, coil rack, dynamic iron
Core, static iron core and push rod；The shape of static contact and outlet terminal plate is mainly designed to positioned on the premise of water conservancy diversion intensity is met,
Material-saving, reduces cost.
The present embodiment has advantages below：(1) by the welding structure of improvement coil, so as to have bigger solder side,
The resistance at solder side is effectively reduced, temperature rise is reduced.(2) static contact can play magnetic blowout due to its special planform
The technique effect of arc, namely more preferable striking ability is formed, further lift the breaking capacity of breaker.(3) each yoke in yoke
The shape and structure design of plate, that is, ensure that overall support strength, be easily installed static contact, coil, coil rack, dynamic iron again
Core, static iron core and push rod.(4) planform of static contact and outlet terminal plate can either meet water conservancy diversion intensity, effectively can save again
Material saving, reduces cost.
Obviously, above-described embodiment of the present utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to embodiment of the present utility model.For those of ordinary skill in the field, in described above
On the basis of can also make other changes in different forms.There is no need to give to all of embodiment
It is exhaustive.And these belong to connotation of the present utility model it is extended obvious change or variation still fall within it is practical
New protection domain.
Claims (10)
1. a kind of electromagnetic mechanism of miniature circuit breaker, including yoke, is provided with the coil rack of vestibule, is set on coil rack
Coil, static iron core, dynamic iron core, pre- bar, static contact, the silver contact being arranged on static contact and outlet terminal plate；It is characterized in that：
Yoke includes bottom yoke plate, front yoke plate, top yoke plate and rear yoke plate；Vertical bending forms institute to the part wall body of the bottom of front yoke plate backward
Bottom yoke plate is stated, vertical bending forms the top yoke plate to the part wall body on the top of front yoke plate backward, pushes up the part of the rear end of yoke plate
Wall body bending downward vertically forms the rear yoke plate；The left end of front yoke plate is provided with U-shaped breach, and the bottom of rear yoke plate is provided with arch and lacks
Mouthful.
2. the electromagnetic mechanism of miniature circuit breaker according to claim 1, it is characterised in that：The center on the top of front yoke plate
It is provided with square breach；The center of the front end of top yoke plate is provided with rectangular indentation, the rectangular indentation of the top yoke plate and front yoke plate
Square breach are connected.
3. the electromagnetic mechanism of miniature circuit breaker according to claim 1, it is characterised in that：The bottom yoke plate of yoke, front yoke plate,
Top yoke plate and rear yoke plate enclose to form an accommodating cavity, and coil is located in the accommodating cavity.
4. the electromagnetic mechanism of miniature circuit breaker according to claim 1, it is characterised in that：Static contact includes being fixedly installed on
Welding section on the yoke plate roof of bottom, extend from welding section forward downward to be formed oblique line changeover portion, from oblique line changeover portion to downward
Stretch the contact to be formed support section, support from contact section bend backward extend the arc-shaped transition section that formed and from arc-shaped transition section to
Back upper place inclines the striking section for extending；Coil is formed by flat copper plate coiling, and the front end of coil is provided with for being weldingly fixed on stationary contact
Front weld part on the wall of the crown, the front weld part are arranged along the horizontal direction of bottom yoke plate；
Being shaped as outlet terminal plate is step-like, including top rank plate, middle supporting plate and bottom rank plate；Top rank plate has for welding with coil
Meet connected welding plate portion；The rear end of coil is provided with for being welded and fixed the rear weld part being arranged in welding plate portion, the rear weld part
Horizontal direction along bottom yoke plate is arranged.
5. the electromagnetic mechanism of miniature circuit breaker according to claim 4, it is characterised in that：Welding section is flat segments；Stationary contact
The left and right of head welding section to width only have bottom yoke plate width 1/2nd, and positioned at the left half side of bottom yoke plate, front yoke plate
Lower left be provided with the installation gap for stretching out static contact welding section；The width in welding plate portion also only has the two of bottom yoke plate width
/ mono-, and the right half side setting just to bottom yoke plate, namely positioned at the right half side dead astern of bottom yoke plate.
6. the electromagnetic mechanism of miniature circuit breaker according to claim 5, it is characterised in that：Front weld part and rear weld part
Bottom is provided with the straight solder side for increasing contact area.
7. the electromagnetic mechanism of miniature circuit breaker according to claim 5, it is characterised in that：Striking section be inclined upwardly sensing it is quiet
The welding section of contact.
8. the electromagnetic mechanism of miniature circuit breaker according to claim 5, it is characterised in that：The top rank plate of outlet terminal plate and
Gap is left between the yoke plate of bottom.
9. the electromagnetic mechanism of miniature circuit breaker according to claim 5, it is characterised in that：The support section that bottoms out of static contact sets
There is caulking groove, silver contact is set and is fixed in the caulking groove.
10. the electromagnetic mechanism of miniature circuit breaker according to claim 1, it is characterised in that：Coil rack is along the longitudinal direction
Arrange, the front end of coil rack is located at the rear side of front yoke plate, the rear end of coil rack is located in the arcuate indentation of rear yoke plate；
The static setting of static iron core opposing yoke, static iron core include slide opening, the connecting portion for being fixedly connected with coil rack, external diameter
More than ring baffle portion and the limiting section in the U-shaped hole of front yoke plate of coil rack external diameter；The static iron core portion of being connected through is solid
It is scheduled on the front end of the vestibule of coil rack；
The front end of push rod is provided with circular top plate, and middle-end is provided with traveller, and rear end is provided with caulking part；
The front end of dynamic iron core is provided with riveting portion, and middle-end is provided with sliding part, and rear end is provided with fore-set portion；The caulking part of push rod is backed through
The slide opening of static iron core is simultaneously connected with the riveting portion of dynamic iron core；Push rod slides in the slide opening of static iron core by its traveller；Dynamic iron core
Slide in the vestibule of coil rack by its sliding part.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621064535.6U CN206040573U (en) | 2016-08-13 | 2016-08-13 | Miniature circuit breaker's electromagnetic mechanism |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621064535.6U CN206040573U (en) | 2016-08-13 | 2016-08-13 | Miniature circuit breaker's electromagnetic mechanism |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206040573U true CN206040573U (en) | 2017-03-22 |
Family
ID=58295993
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621064535.6U Active CN206040573U (en) | 2016-08-13 | 2016-08-13 | Miniature circuit breaker's electromagnetic mechanism |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206040573U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010421A (en) * | 2019-04-22 | 2019-07-12 | 北京北元电器有限公司 | Selective small-sized DC breaker and tripping guard method |
-
2016
- 2016-08-13 CN CN201621064535.6U patent/CN206040573U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110010421A (en) * | 2019-04-22 | 2019-07-12 | 北京北元电器有限公司 | Selective small-sized DC breaker and tripping guard method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20171204 Address after: 325000 Zhenguang Industrial Zone, Liushi, Yueqing, Wenzhou, Zhejiang Province, No. 8 Patentee after: Hongxiu Electric Co., Ltd. Address before: 325600, Zhenxing Road, Xinguang Industrial Zone, Liushi Town, Zhejiang, Yueqing, 8 Patentee before: Zheng Wenxiu |