CN103985602A - Alternating current contactor E type iron core - Google Patents
Alternating current contactor E type iron core Download PDFInfo
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- CN103985602A CN103985602A CN201410235951.7A CN201410235951A CN103985602A CN 103985602 A CN103985602 A CN 103985602A CN 201410235951 A CN201410235951 A CN 201410235951A CN 103985602 A CN103985602 A CN 103985602A
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- iron core
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H50/00—Details of electromagnetic relays
- H01H50/16—Magnetic circuit arrangements
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Abstract
The invention relates to an alternating current contactor, and discloses an alternating current contactor E type iron core. According to the technical scheme, the alternating current contactor E type iron core comprises a static iron core formed by stacking silicon steel sheets and is characterized in that the end faces of three vertical columns of the static iron core are located on the same plane, a groove is machined in the end face of at least one vertical column among the three vertical columns, the bottom surface of each groove is lower than the plane, and the grooves are used for reducing the contact area of a movable iron core and the static iron core when the movable iron core and the static iron core attract. Furthermore, a hollow structure is arranged on each silicon steel sheet, and therefore the weight of the iron core is reduced. According to the alternating current contactor E type iron core, the grooves are machined in the end faces of the vertical columns for reducing the contact area, and therefore the goal of adjusting attracting force is achieved; the hollow structures are machined on the silicon steel sheets, so that the weight of the iron core is reduced, the influence of the hollow structures on the magnetic conductivity of the iron core can be compensated by adjusting parameters of a drive system and can also be compensated by adjusting the width of the grooves to change the contact area between the movable iron core and the static iron core, and normal use of the iron core cannot be affected.
Description
Technical field
The present invention relates to A.C. contactor, particularly a kind of AC contactor iron core structure and holding force method of adjustment thereof.
Background technology
A.C. contactor is a kind of application low-voltage electrical apparatus very widely, based on the operation principle of " energising adhesive; charged maintenance; power-off discharges ", while using ac control power supply manipulation, magnetic hysteresis loss and eddy current loss in iron core and short-circuited conducting sleeve account for the more than 90% of total energy consumption, have strengthened the electric energy loss on power network line, have shortened the useful life of contactor coil.For a change this high energy consumption operation conditions, China has promulgated GB21518-2008 " A.C. contactor efficiency limit value and efficiency grade ", the efficiency grade, efficiency limit value, Energy efficiency evaluation value and the test method that in standard, have specified A.C. contactor, played positive facilitation to the research of alternating-current contactor energy-saving and electron controls technology.
At present, alternating-current contactor energy-saving technology is along with the extensive use of electron controls technology has obtained tremendous development, be direct current adhesive by the ac operation mode that changes A.C. contactor magnet exciting coil, direct current keeps operational mode, and the efficiency grade of A.C. contactor is improved constantly.A.C. contactor is the product of electromechanical integrated structure, single from changing the electronic control mode of A.C. contactor, also can not make the operational efficiency of contactor and manufacturing cost reach optimization far away.
In prior art, a kind ofly apply general E shaped iron core silicon steel structure as shown in Figure 1, the static iron core structure of the stacking formation of this silicon steel sheet as shown in Figure 2, can be regarded as by three column one end and connect " E " font iron core that same crossbeam forms.This iron core has symmetrical structure conventionally, and in figure, OP is its symmetry axis.As seen from Figure 1, iron core middle column's end face and two side column end faces are not in one plane, center pillar end face and two side column end face differences in height are δ, in the time of contactor adhesive, moving iron core only with two side column end contacts of static iron core, move the gap due to an equal height of existence between iron core and static iron core center pillar, and do not contact with moving iron core.This gap is called air gap (or magnetic gap), in engineering, by adjusting the height (size of δ) of this air gap, adjusts contactor holding force.Concrete method of adjustment is to adopt grinding technics, and two side column end faces and center pillar end face are polished, and air gap is adjusted to suitable height, to obtain suitable holding force.There is subject matter in this iron core of prior art, and the one, because needs are polished to two side column end faces and center pillar end face, machining accuracy is difficult to guarantee, and the first-time qualification rate of product is lower, and manufacturing cost is high; The 2nd, in use because wearing and tearing have changed initial air gap value unshakable in one's determination, cause shorten the final useful life of contactor product; The 3rd, because air-gap reluctance is far longer than the magnetic resistance of silicon steel sheet, need larger adhesive to keep power, product energy consumption is larger.On the other hand, A.C. contactor weight is also the problem that needs solve, in ac contactor apparatus, (comprise iron core, magnet exciting coil, actuating mechanism and control system etc.), iron core weight exceedes 40% of device total weight, by reducing the iron core weight weight of alleviator greatly.Particularly move the weight of iron core by reduction, can further reduce adhesive power, improve breaking speed, reduce running noises.
Summary of the invention
For the shortcoming of above-mentioned prior art, the object of this invention is to provide a kind of A.C. contactor E shaped iron core, by changing core structure, improve iron core working (machining) efficiency, reduce A.C. contactor energy consumption.
The present invention solve the technical problem, the technical scheme adopting is, A.C. contactor E shaped iron core, comprise the static iron core being built up by silicon steel sheet, it is characterized in that, the end face of three columns of described static iron core, in same plane, is processed with groove on the end face of at least one column in three columns, described groove floor is lower than described plane, the contact area when reducing moving iron core and static iron core adhesive.
The present invention has changed three different structures of column height of conventional AC contactor E shaped iron core, in iron core, three column end faces are in same plane, while moving iron core with static iron core adhesive, three columns all contact with moving iron core, by reducing contact area in column end face machined grooves, reach the object of adjusting holding force.This structural change conventional AC contactor iron core holding force method of adjustment, iron core processing is more simple and convenient, has improved product working (machining) efficiency.
Preferably, described groove is arranged on center pillar both sides, makes its end face middle part exceed both sides and forms boss.
Groove is arranged on center pillar both sides by this scheme, makes its end face middle part exceed both sides and form boss, and when iron core adhesive, except two side column end faces contact with moving iron core, this boss on center pillar also contacts with moving iron core.Because boss has reduced the magnetic resistance of magnetic circuit, iron core holding force increases greatly, can reduce adhesive and keep electric current to reach energy-conservation object, also can improve contact holddown spring counter-force, thereby improve breaking speed, reduces contact abrasion.This scheme is applicable to middle low power AC contactor iron core structure very much.
Preferably, described groove is arranged on center pillar end face and/or two side column end face centre positions, makes its end face form two boss.
Groove is arranged on column end face centre position, makes its end face form two boss, is called double polarizing keys structure.Can form double polarizing keys structure at center pillar end face, also can all form this double polarizing keys structure at center pillar end face and two side column end faces, this structure is suitable for middle high-power AC contactor iron core very much.
Preferably, described groove is dovetail groove.
For the iron core of double polarizing keys structure, Pocket Machining is become to dovetail groove wide at the top and narrow at the bottom or up-narrow and down-wide dovetail groove, can change by three column end faces of polishing the size of contact-making surface, thereby adjust holding force, very convenient.
Further, on described silicon steel sheet, be provided with engraved structure, to alleviate iron core weight.
This scheme reduces iron core weight by process engraved structure on silicon steel sheet, and actual weight loss effect can meet or exceed 17%, and particularly for high-power contactor, weight loss effect is very outstanding.By choose reasonable hollow out position, can reduce the impact on core structure intensity, and the impact that engraved structure causes iron core magnetic permeability, can compensate by the parameter of adjusting drive system, also can be by adjusting recess width, the contact area that changes moving iron core and static iron core is supplemented, and can not affect the normal use of iron core.
Concrete, described engraved structure is rectangular through-hole or manhole.
Engraved structure on silicon steel sheet adopts rectangular through-hole or manhole, can, by Sheet Metal Forming Technology time processing moulding in silicon steel sheet production process, have mould structure structure, feature easy to process.Particularly rectangular through-hole, has advantages of that weight loss effect is outstanding.
Preferably, described engraved structure is arranged on and is positioned on the middle silicon steel sheet of iron core.
Because the magnetic line of force mainly concentrates on iron core periphery surface, the core center position magnetic line of force is relatively less, carry out hollow out processing at the silicon steel sheet that is positioned at iron core centre, keep original structure not deal with for the silicon steel sheet at iron core two ends, can reduce to greatest extent the impact on magnetic permeability, and the hole that engraved structure can be formed is enclosed in the middle of iron core, do not contact with the external world, can reduce the chance that these holes are sheltered evil people and countenance evil practices, reduce iron core corrosion rate, and increased globality and the structural strength of iron core.
Preferably, on adjacent silicon steel disc, engraved structure position does not overlap mutually.
On adjacent silicon steel disc, engraved structure position does not overlap mutually, and the hole on adjacent silicon steel disc is staggered.The iron core of this structure can make engraved structure greatly reduce the impact of core structure intensity, and has reduced the impact on iron core magnetic permeability.
Recommend, the silicon steel sheet that is provided with engraved structure has same structure, and on silicon steel sheet, same position place engraved structure shape is identical with size, and adjacent silicon steel disc turn-over stacks.
In this technical scheme, the engraved structure arranging on silicon steel sheet is identical, and on silicon steel sheet, same position place engraved structure shape is identical with size.Can adopt respectively same secondary Mould Machining silicon steel sheet for static iron core and moving iron core, thereby cut down finished cost.When lamination, adjacent silicon steel disc turn-over is stacked and just can realize the design feature that on adjacent silicon steel disc, engraved structure position does not overlap mutually.
Recommend, the engraved structure position arranging on alternate silicon steel sheet in described iron core is identical.
This scheme adopts two groups of silicon steel sheets that structure is different, and while stacking, two groups of silicon steel sheets are stacked alternately, and also can realize the design feature that on adjacent silicon steel disc, engraved structure position does not overlap mutually.
The invention has the beneficial effects as follows, static iron core structure of the present invention can improve holding force 30%～50% unshakable in one's determination, can reduce holding current reaches energy-conservation object to newly-increased holding force on the one hand, can appropriateness improve contact holddown spring counter-force, the loss that improves the Speed Reduction contact of probe of contactor disjunction on the other hand.The raising of holding force unshakable in one's determination has also been created condition for hollow out processing, can compensate the magnetic permeability that hollow out processing causes and reduce the impact on holding force.
Brief description of the drawings
Fig. 1 is prior art iron core static iron core silicon steel structure schematic diagram;
Fig. 2 is prior art iron core static iron core structural representation;
Fig. 3 is embodiment 1 static iron core silicon steel structure schematic diagram;
Fig. 4 is embodiment 1 static iron core structural representation;
Fig. 5 is embodiment 2 static iron core silicon steel structure schematic diagrames;
Fig. 6 is embodiment 2 static iron core structural representations;
Fig. 7 is embodiment 3 groove structure schematic diagrames
Fig. 8 is embodiment 4 groove structure schematic diagrames;
Fig. 9 is the moving iron core silicon-steel sheet structural representation of embodiment 5;
Figure 10 is the moving core structure schematic diagram of embodiment 5;
Figure 11 is embodiment 5 static iron core silicon steel structure schematic diagrames;
Figure 12 a is the moving iron core silicon-steel sheet structural representation of embodiment 6;
Figure 12 b is the rearview of Figure 12 a;
Figure 13 a is the static iron core silicon steel structure schematic diagram of embodiment 6;
Figure 13 b is the rearview of Figure 13 a.
In figure, 1 is rectangular through-hole (engraved structure); 2 is pilot hole; OP is symmetry axis; δ is air gap height (difference in height of center pillar and side column); 11 is rivet; 12 is groove; 13 is boss.
Embodiment
Below in conjunction with drawings and Examples, describe technical scheme of the present invention in detail.
The present invention has changed three different structures of column height of conventional AC contactor E shaped iron core, and in iron core, three column height are identical, and its end face is in same plane.While moving iron core with static iron core adhesive, three columns all contact with moving iron core, and due to the increase of contact area, iron core holding force increases greatly, can reduce contact area in column end face machined grooves, reach the object of adjusting holding force.Also can coordinate hollow out processing to carry out loss of weight, the holding force of increase can compensate the negative effect of engraved structure to holding force.
A.C. contactor E shaped iron core structure of the present invention, change traditional iron core holding force method of adjustment of passing through polishing column adjustment air gap height, in iron core column end face machined grooves, form boss structure, contact area while changing moving iron core and static iron core adhesive by adjusting recess width, thus reach the object of adjusting moving iron core and static iron core holding force.Reduce the area that recess width has been equivalent to increase the moving iron core of boss contact, thereby increase moving iron core and static iron core holding force, otherwise, increase the area that recess width has just been equivalent to reduce the moving iron core of boss contact, thereby reduce moving iron core and static iron core holding force.More easily hold precision owing to controlling the width of groove in engineering than controlling three column end face height, so method machining accuracy of the present invention is higher, conforming product rate is also higher.
Embodiment 1
This routine A.C. contactor E shaped iron core, comprises the moving iron core and the static iron core that are built up by silicon steel sheet, and Fig. 3 shows the structure of static iron core silicon steel sheet, and Fig. 4 is the static iron core structural representation of the stacking formation of silicon steel sheet.The end face of three columns of static iron core, in same plane, is processed with groove 12 on the end face of center pillar, groove 12 is arranged on center pillar both sides, makes center pillar end face middle part exceed both sides and forms boss 13.Groove 12 bottom surfaces are lower than three column end faces, while making iron core with static iron core adhesive, center pillar only has boss 13 to contact with moving iron core, other parts of center pillar end face do not contact with moving iron core, thereby reduce the contact area of moving iron core and static iron core, reach the object of adjusting holding force.
Embodiment 2
This routine A.C. contactor E shaped iron core, is a high-power AC contactor iron core, and as shown in Figure 5 and Figure 6, Fig. 5 is silicon steel structure schematic diagram to structure, and Fig. 6 is core structure schematic diagram.The section of three columns of this routine static iron core silicon steel sheet is all provided with groove 12, and groove 12 is arranged on center pillar end face and two side column end face centre positions, and the both sides of three column end faces all form boss 13, form so-called double polarizing keys structure.Conventionally, AC contactor iron core center pillar width is all greater than two side column width, and the recess width of corresponding center pillar end face setting is also the widest in three columns.In the time of A.C. contactor adhesive, the boss 13 of iron core end face all contacts with moving iron core, by changing the width of groove 12, just can change the width of boss 13, thereby change contact area, reaches the object of adjusting holding force.
Embodiment 3
As shown in Figure 7, the shape of this routine groove 12 is different from above-described embodiment, and groove 12 adopts oat tail groove structure wide at the top and narrow at the bottom, and these other structures of routine iron core are identical with embodiment 2.This routine static iron core can be adjusted contact area by polishing column end face, the groove shapes shown in Fig. 7, and polishing column can increase contact area, namely increases holding force.
Embodiment 4
The groove of three column end faces of this routine static iron core adopts up-narrow and down-wide oat tail groove structure, as shown in Figure 8.The contact area of moving iron core and static iron core when this routine static iron core can reduce adhesive by polishing column end face, other structures of this example are identical with embodiment 2.
Embodiment 5
This routine iron core is also E shaped iron core, and its moving iron core and static iron core are by the stacking formation of silicon steel sheet, and as shown in Figure 9, Figure 10 shows the moving iron core that silicon steel sheet builds up to moving iron core silicon-steel sheet structure, and as shown in figure 11, OP is silicon steel sheet symmetry axis to static iron core silicon steel structure.The pilot hole that in figure, manhole 2 is iron core, comprises the rivet hole of rivet clasp iron core and the supported hole of mounting bracket.Rectangular through-hole 1 in figure is exactly the engraved structure for loss of weight processing.Significantly, engraved structure 1 also can be processed into manhole, although manhole weight loss effect is not so good as rectangular through-hole, manhole processing is more convenient, and mould structure is also simpler.
As seen from Figure 10, engraved structure 1 be all processing on the silicon steel sheet being positioned in the middle of iron core, be positioned on the silicon steel sheet at iron core two ends and do not process engraved structure, but kept silicon steel sheet original structure.In the moving iron core of this example, each silicon steel sheet that is provided with engraved structure all has same structure, and on each silicon steel sheet, same position place engraved structure shape is all identical with size, and static iron core is also like this.When the silicon steel sheet of this structure assembles, in whole iron core, hollow out position overlaps, and does not process engraved structure except the silicon steel sheet at iron core two ends, and hollow out also can be regarded the hollow out to whole iron core as.The iron core weight loss effect of this structure is outstanding, but larger on core structure intensity and magnetic permeability impact.Three column end faces of this routine static iron core are all processed with groove 12, and comparison diagram 5 and Figure 11 can find out, groove 12 structures of static iron core column end face are identical with embodiment 2.This routine engraved structure impact on iron core holding force, can be compensated and be adjusted by the width that changes groove 12.
Embodiment 6
The moving iron core silicon-steel sheet structure of this example is as shown in Figure 12 a, Figure 12 b, and static iron core silicon steel structure is as shown in Figure 13 a, Figure 13 b.If certain one side of silicon steel sheet is defined as to front (A face), its reverse side is the back side (B face), Figure 12 a is considered as to moving iron core silicon-steel sheet A face front view, Figure 12 b is exactly moving iron core silicon-steel sheet B face front view, Figure 13 a is static iron core silicon steel sheet A face front view, and Figure 13 b is static iron core silicon steel sheet B face front view.Figure 12 a also can regard two kinds of moving iron core silicon-steel sheets that structure is different as with Figure 12 b, and corresponding, Figure 13 a also can regard two kinds of static iron core silicon steel sheets that structure is different as with Figure 13 b.In this routine iron core, on adjacent silicon steel disc, engraved structure position does not overlap mutually.
According to the symmetry of iron core (being also the symmetry of silicon steel sheet), this routine iron core can adopt two kinds of processing methods to manufacture.Its processing method can describe by Figure 12 a, Figure 12 b and Figure 13 a, Figure 13 b, to move iron core as example, referring to Figure 12 a and Figure 12 b.
The first processing method is, need to carry out the silicon steel sheet of hollow out processing, all press the shape processing engraved structure 1 shown in Figure 12 a, each silicon steel sheet all has same structure, on silicon steel sheet, same position place engraved structure shape is identical with size, when lamination, adjacent silicon steel disc turn-over stacks, and the engraved structure position on adjacent silicon steel disc is not overlapped mutually.Can be found out by Figure 12 a and Figure 12 b, by the silicon steel sheet of the shape processing shown in Figure 12 a, after turn-over, its shape is just as shown in Figure 12 b, and the just interlaced arrangement of engraved structure position in two width figure, does not overlap mutually.The advantage of this processing method is, only needs can complete processing once secondary mould, and during by lamination, turn-over stacks the architectural feature that the engraved structure position that just can obtain on adjacent silicon steel disc does not overlap mutually.This processing method, has requirement to engraved structure position, need to be by engraved structure location arrangements on silicon steel sheet symmetry axis both sides.
The second processing method, to regard Figure 12 a as two kinds of silicon steel sheets that structure is different with the silicon steel sheet shown in Figure 12 b, the silicon steel sheet that needs hollow out is divided into 2 groups, first group of silicon steel sheet is according to shape processing engraved structure described in Figure 12 a, second group of silicon steel sheet is according to the processing of shape shown in Figure 12 b engraved structure, the engraved structure position difference of processing on two groups of silicon steel sheets, interlaced arrangement.When lamination, first group of silicon steel sheet and second group of silicon steel sheet are alternately stacking, and on alternate silicon steel sheet, engraved structure position is identical, and the engraved structure position on adjacent silicon steel disc does not overlap mutually.The feature of this processing method is to need two secondary moulds to process, and does not need to carry out turn-over operation when lamination.This processing method can be arranged on engraved structure on silicon steel sheet symmetry axis, realizes the scheme of the upper and lower interlaced arrangement of engraved structure on adjacent silicon steel disc symmetry axis.
Can be found out by Figure 13 a and Figure 13 b, this routine static iron core column end face is all processed with groove 12.Above-mentioned two kinds of iron cores that processing method obtains, alternate silicon steel structure is identical, adjacent silicon steel structure difference, the through hole that does not have engraved structure to form in the iron core obtaining, impact on core structure intensity is smaller, also can reduce the impact of iron core magnetic permeability, and just weight loss effect is slightly poor.
180A specification A.C. contactor holding current is compared as follows:
| Core construction | Magnet exciting coil specification (V) | Holding current (mA) |
| Prior art iron core | 220 | 205 |
| Iron core of the present invention | 220 | 95 |
Claims (10)
1. A.C. contactor E shaped iron core, comprise the moving iron core and the static iron core that are built up by silicon steel sheet, it is characterized in that, the end face of three columns of described static iron core is in same plane, article three, in column, on the end face of at least one column, be processed with groove, described groove floor is lower than described plane, the contact area when reducing moving iron core and static iron core adhesive.
2. A.C. contactor E shaped iron core according to claim 1, is characterized in that, described groove is arranged on center pillar both sides, makes its end face middle part exceed both sides and forms boss.
3. A.C. contactor E shaped iron core according to claim 1, is characterized in that, described groove is arranged on center pillar end face and two side column end face centre positions, makes its end face form two boss.
4. A.C. contactor E shaped iron core according to claim 3, is characterized in that, described groove is dovetail groove.
5. according to the A.C. contactor E shaped iron core described in claim 1～4 any one, it is characterized in that, on described silicon steel sheet, be provided with engraved structure, to alleviate iron core weight.
6. A.C. contactor E shaped iron core according to claim 5, is characterized in that, described engraved structure is rectangular through-hole or manhole.
7. according to power A.C. contactor E shaped iron core according to claim 5, it is characterized in that, described engraved structure is arranged on and is positioned on the middle silicon steel sheet of iron core.
8. according to power A.C. contactor E shaped iron core according to claim 5, it is characterized in that, in described iron core, on adjacent silicon steel disc, engraved structure position does not overlap mutually.
9. according to power A.C. contactor E shaped iron core according to claim 8, it is characterized in that, the silicon steel sheet that is provided with engraved structure has same structure, and on silicon steel sheet, same position place engraved structure shape is identical with size, and adjacent silicon steel disc turn-over stacks.
10. according to power A.C. contactor E shaped iron core according to claim 8, it is characterized in that, the engraved structure position arranging on alternate silicon steel sheet in described iron core is identical.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235951.7A CN103985602B (en) | 2014-05-30 | 2014-05-30 | A.C. contactor E shaped iron core |
| PCT/CN2015/079873 WO2015180633A1 (en) | 2014-05-30 | 2015-05-27 | E-type iron core for alternating-current contactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410235951.7A CN103985602B (en) | 2014-05-30 | 2014-05-30 | A.C. contactor E shaped iron core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103985602A true CN103985602A (en) | 2014-08-13 |
| CN103985602B CN103985602B (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410235951.7A Expired - Fee Related CN103985602B (en) | 2014-05-30 | 2014-05-30 | A.C. contactor E shaped iron core |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN103985602B (en) |
| WO (1) | WO2015180633A1 (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180633A1 (en) * | 2014-05-30 | 2015-12-03 | 成都海沃斯电气技术有限公司 | E-type iron core for alternating-current contactor |
| CN105914010A (en) * | 2016-04-18 | 2016-08-31 | 长兴盛强电子器材有限公司 | E-type choking coil |
| CN110131467A (en) * | 2019-06-06 | 2019-08-16 | 福建洁博利厨卫科技有限公司 | A kind of bistable electromagnetic valve and induction discharging device |
| JP7008888B1 (en) * | 2021-03-19 | 2022-01-25 | 三菱電機株式会社 | Electromagnetic contactor |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114038665B (en) * | 2021-12-21 | 2023-03-10 | 江苏天瑞变压器有限公司 | Transformer core and wire winding rack thereof |
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| US1582986A (en) * | 1924-04-09 | 1926-05-04 | Reyrolle A & Co Ltd | Alternating-current electromagnet |
| GB1031794A (en) * | 1962-01-29 | 1966-06-02 | Cie Electro Mechanique | Improvements in and relating to magnetic circuits for relays, contactors or like electromagnetic apparatus |
| CH458538A (en) * | 1967-09-05 | 1968-06-30 | Landis & Gyr Ag | Folding armature relay |
| US4577174A (en) * | 1984-03-31 | 1986-03-18 | Square D Starkstrom Gmbh | Electromagnet for electric switching device |
| JP2003318023A (en) * | 2002-04-23 | 2003-11-07 | Fuji Electric Co Ltd | Electromagnet |
| CN101630568A (en) * | 2008-06-18 | 2010-01-20 | 富士电机机器制御株式会社 | Electromagnet device and electromagnetic contactor |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US457717A (en) * | 1891-08-11 | hicks | ||
| CN103985602B (en) * | 2014-05-30 | 2015-10-28 | 成都海沃斯电气技术有限公司 | A.C. contactor E shaped iron core |
-
2014
- 2014-05-30 CN CN201410235951.7A patent/CN103985602B/en not_active Expired - Fee Related
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2015
- 2015-05-27 WO PCT/CN2015/079873 patent/WO2015180633A1/en active Application Filing
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US1582986A (en) * | 1924-04-09 | 1926-05-04 | Reyrolle A & Co Ltd | Alternating-current electromagnet |
| GB1031794A (en) * | 1962-01-29 | 1966-06-02 | Cie Electro Mechanique | Improvements in and relating to magnetic circuits for relays, contactors or like electromagnetic apparatus |
| CH458538A (en) * | 1967-09-05 | 1968-06-30 | Landis & Gyr Ag | Folding armature relay |
| US4577174A (en) * | 1984-03-31 | 1986-03-18 | Square D Starkstrom Gmbh | Electromagnet for electric switching device |
| JP2003318023A (en) * | 2002-04-23 | 2003-11-07 | Fuji Electric Co Ltd | Electromagnet |
| CN101630568A (en) * | 2008-06-18 | 2010-01-20 | 富士电机机器制御株式会社 | Electromagnet device and electromagnetic contactor |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015180633A1 (en) * | 2014-05-30 | 2015-12-03 | 成都海沃斯电气技术有限公司 | E-type iron core for alternating-current contactor |
| CN105914010A (en) * | 2016-04-18 | 2016-08-31 | 长兴盛强电子器材有限公司 | E-type choking coil |
| CN105914010B (en) * | 2016-04-18 | 2017-09-22 | 长兴盛强电子器材有限公司 | E type choke coils |
| CN110131467A (en) * | 2019-06-06 | 2019-08-16 | 福建洁博利厨卫科技有限公司 | A kind of bistable electromagnetic valve and induction discharging device |
| JP7008888B1 (en) * | 2021-03-19 | 2022-01-25 | 三菱電機株式会社 | Electromagnetic contactor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103985602B (en) | 2015-10-28 |
| WO2015180633A1 (en) | 2015-12-03 |
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