CN203351530U - Movable iron core - Google Patents
Movable iron core Download PDFInfo
- Publication number
- CN203351530U CN203351530U CN 201320367672 CN201320367672U CN203351530U CN 203351530 U CN203351530 U CN 203351530U CN 201320367672 CN201320367672 CN 201320367672 CN 201320367672 U CN201320367672 U CN 201320367672U CN 203351530 U CN203351530 U CN 203351530U
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- connecting rod
- iron core
- main part
- main body
- external diameter
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Abstract
The utility model discloses a movable iron core. The main points of the technical scheme are that: the movable iron core includes an iron core body; the iron core body comprises a tip, a first connecting rod, a second connecting rod, and a main body which are sequentially integrated; the outer diameter of the second connecting rod is smaller than that of the main body; the outer diameter of the first connecting rod is smaller than that of the second connecting rod; an end face of another side of the tip opposite to the first connecting rod is provided with a chamfer; an end face of the main body close to the tip is provided with the chamfer; the iron core body is made of low carbon steel or an electrical pure iron; and the tip, the first connecting rod, the second connecting rod and the main body are coaxial. The movable iron core of the utility model can effectively improve the material utilization rate, reduce the waste of materials, and reduce the production cost.
Description
Technical field
The utility model relates to a kind of iron core, is specifically related to a kind of moving iron core.
Background technology
The miniature circuit breaker short circuit protection system is by the variation of solenoid electromagnet sensing loop electric current, when loop current in normal value or when the short-circuit protection value of setting is following, the electromagnetic force that solenoid electromagnet produces can not overcome the active force of anti-spring, and moving iron core remains on initial position; When current circuit is short-circuited fault; electric current sharply increases; the electromagnetic force that solenoid electromagnet produces overcomes the active force of anti-spring; moving iron core promotes push rod; and act on and freely take off mouth mechanism, making freely to take off mouth mechanism and trip, moving contact is opened fast under the effect of spring; cut off current circuit, realize short-circuit protection function.Traditional moving iron core is tubular structure, and the metal material punching press good by magnetic property made, and the moving iron core had is from first to last all unified caliber, and stock utilization is low, and production cost is relatively high.
The utility model content
The deficiency existed for prior art, the utility model provides a kind of moving iron core, and this moving iron core has effectively improved stock utilization, reduces the waste of material, reduces production costs.
For achieving the above object, the utility model provides following technical scheme: a kind of moving iron core, comprise the iron core main body, described iron core main body comprises termination, first connecting rod, second connecting rod and the main part be wholely set successively, the external diameter of described second connecting rod is less than the external diameter of main part, the external diameter of described first connecting rod is less than the external diameter of second connecting rod, on the opposite side end face relative with first connecting rod of described termination, is provided with chamfering, on the end face of described main part near termination one side, is provided with chamfering.
By adopting technique scheme, when this moving iron core is arranged in plastic casing, termination and first connecting rod pass opening and are placed in the plastic casing outside, second connecting rod is placed in opening part, when moving iron core in axial direction moves around, second connecting rod can be along opening and main part synchronizing moving, and main part is placed in plastic casing inside, can along axial direction, move around in plastic casing inside, and can be inconsistent with static iron core; It is suitable that the external diameter of second connecting rod is less than the external diameter of main part and second connecting rod and opening, so the opening internal diameter is less than the external diameter of main part, can prevent that main part from deviating from from opening part, makes main part do back and forth movement between opening and static iron core; Second connecting rod and opening are suitable, play a guidance quality effect, and the external diameter of first connecting rod are less than the external diameter of second connecting rod, can effectively raise the stock utilization of this moving iron core, reduce the waste of material at first connecting rod place, reduce production costs; Be provided with chamfering on the opposite side end face relative with first connecting rod of termination, when this moving iron core is installed into plastic casing, chamfering has certain guidance quality effect, the opening part that facilitates termination to pass to arrange on plastic casing; Be provided with chamfering on the end face of main part near termination one side, facilitate the iron core main body to be installed into plastic casing.
The utility model further is set to, and described iron core main body is made by mild steel or electrical pure iron.
By adopting technique scheme, moving iron core is arranged in miniature circuit breaker, the active force of the electromagnetic field produced by electrified coil moves, and the drive push rod touches trip gear cut-out electric current, and size and its magnetic resistance that moving iron core produces magnetic force are inversely proportional to, should be made by mild steel or electrical pure iron by moving iron core, there is good magnetic property, make its service behaviour better.
The utility model further is set to, and the axle center of described termination, first connecting rod, second connecting rod and main part is all on the same straight line.
By adopting technique scheme, the axle center of assurance termination, first connecting rod, second connecting rod and main part is all on the same straight line, and while making iron core work, motion in the axial direction can not produce deviation and cause clamping stagnation.
The accompanying drawing explanation
The structural representation that Fig. 1 is the moving iron core of the utility model;
Fig. 2 is arranged on the structural representation in plastic casing for moving iron core.
Reference numeral: 1, iron core main body; 11, termination; 12, first connecting rod; 13, second connecting rod; 14, main part; 2, plastic casing; 21, opening; 3, static iron core; 4, chamfering.
Embodiment
Referring to figs. 1 through Fig. 2, the moving iron core embodiment of the utility model is described further.
A kind of moving iron core, comprise iron core main body 1, iron core main body 1 comprises termination 11, first connecting rod 12, second connecting rod 13 and the main part 14 be wholely set successively, the external diameter of second connecting rod 13 is less than the external diameter of main part 14, the external diameter of first connecting rod 12 is less than the external diameter of second connecting rod 13, be provided with chamfering 4 on the opposite side end face relative with first connecting rod 12 of termination 11, on the end face of main part 14 near termination 11 1 sides, be provided with chamfering 4.
By adopting technique scheme, when this moving iron core is arranged on plastic casing 2 when interior, as shown in Figure 2, termination 11 and first connecting rod 12 pass opening 21 and are placed in plastic casing 2 outsides, second connecting rod 13 is placed in opening 21 places, when moving iron core in axial direction moves around, second connecting rod 13 can be along opening 21 and main part 14 synchronizing movings, main part 14 is placed in plastic casing 2 inside, can along axial direction, move around in plastic casing 2 inside, and can be inconsistent with static iron core 3, what need to indicate is herein, the length of second connecting rod 13 should meet when main part 14 in axial direction moves around, second connecting rod 13 can keep in touch with opening 21 inwalls all the time, the external diameter of second connecting rod 13 is less than the external diameter of main part 14 and second connecting rod 13 is suitable with opening 21, therefore opening 21 internal diameters are less than the external diameter of main part 14, can prevent that main part 14 from deviating from from opening 21, make main part 14 do back and forth movement between opening 21 and static iron core 3, second connecting rod 13 is suitable with opening 21, play a guidance quality effect, and the external diameter of first connecting rod 12 is less than the external diameter of second connecting rod 13, can effectively raise the stock utilization of this moving iron core, reduces the waste of material at first connecting rod 12 places, reduces production costs, be provided with chamfering 4 on the opposite side end face relative with first connecting rod 12 of termination 11, when this moving iron core is installed into plastic casing 2, chamfering 4 has certain guidance quality effect, facilitates termination 11 through opening 21 places that arrange on plastic casing 2, be provided with chamfering 4 on the end face of main part 14 near termination 11 1 sides, facilitate iron core main body 1 to be installed into plastic casing 2, it should be noted that herein, the external diameter of main part 14 is slightly less than the internal diameter of plastic casing 2, the external diameter of second connecting rod 13 is slightly less than the internal diameter of opening 21, iron core can in axial direction be moved back and forth in plastic casing 2, not there will be catching phenomenon, the inner diameter deviation of the external diameter of second connecting rod 13 and opening 21 is not too large simultaneously, opening 21 has also played a guide effect, when being moved back and forth in plastic casing 2, iron core remains on certain axial direction, disalignment while avoiding moving iron core to move and clamping stagnation, in plastic casing 2, cause equipment fault.
Described iron core main body 1 is made by mild steel or electrical pure iron.
By adopting technique scheme, moving iron core is arranged in miniature circuit breaker, the active force of the electromagnetic field produced by electrified coil moves, and the drive push rod touches trip gear cut-out electric current, and size and its magnetic resistance that moving iron core produces magnetic force are inversely proportional to, should be made by mild steel or electrical pure iron by moving iron core, there is good magnetic property, make its service behaviour better.
The axle center of described termination 11, first connecting rod 12, second connecting rod 13 and main part 14 is all on the same straight line.
By adopting technique scheme, the axle center of assurance termination 11, first connecting rod 12, second connecting rod 13 and main part 14 is all on the same straight line, and while making iron core work, motion in the axial direction can not produce deviation and cause clamping stagnation.
The above is only preferred implementation of the present utility model, and protection range of the present utility model also not only is confined to above-described embodiment, and all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, in the some improvements and modifications that do not break away under the utility model principle prerequisite, these improvements and modifications also should be considered as protection range of the present utility model.
Claims (3)
1. a moving iron core, comprise the iron core main body, described iron core main body comprises termination, first connecting rod, second connecting rod and the main part be wholely set successively, it is characterized in that: the external diameter of described second connecting rod is less than the external diameter of main part, the external diameter of described first connecting rod is less than the external diameter of second connecting rod, be provided with chamfering on the opposite side end face relative with first connecting rod of described termination, on the end face of described main part near termination one side, be provided with chamfering.
2. a kind of moving iron core according to claim 1, it is characterized in that: described iron core main body is made by mild steel or electrical pure iron.
3. a kind of moving iron core according to claim 2, it is characterized in that: the axle center of described termination, first connecting rod, second connecting rod and main part is all on the same straight line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320367672 CN203351530U (en) | 2013-06-24 | 2013-06-24 | Movable iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320367672 CN203351530U (en) | 2013-06-24 | 2013-06-24 | Movable iron core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203351530U true CN203351530U (en) | 2013-12-18 |
Family
ID=49751397
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320367672 Expired - Fee Related CN203351530U (en) | 2013-06-24 | 2013-06-24 | Movable iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203351530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928208A (en) * | 2014-05-04 | 2014-07-16 | 任金瑞 | Movable iron core of automatic gearbox of electric automobile and electric tricycle |
-
2013
- 2013-06-24 CN CN 201320367672 patent/CN203351530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103928208A (en) * | 2014-05-04 | 2014-07-16 | 任金瑞 | Movable iron core of automatic gearbox of electric automobile and electric tricycle |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131218 Termination date: 20140624 |
|
| EXPY | Termination of patent right or utility model |