CN204010941U - A kind of I shape ignition coil magnetic core - Google Patents

A kind of I shape ignition coil magnetic core Download PDF

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Publication number
CN204010941U
CN204010941U CN201420439238.XU CN201420439238U CN204010941U CN 204010941 U CN204010941 U CN 204010941U CN 201420439238 U CN201420439238 U CN 201420439238U CN 204010941 U CN204010941 U CN 204010941U
Authority
CN
China
Prior art keywords
end cap
magnetic core
ignition coil
cylinder
shape
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN201420439238.XU
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Chinese (zh)
Inventor
钟远东
李伟平
李叶亮
房建明
陈善华
罗合兵
邹海平
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGXI MAGPIONEER NEW MATERIALS TECHNOLOGY Co Ltd
Original Assignee
JIANGXI MAGPIONEER NEW MATERIALS TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGXI MAGPIONEER NEW MATERIALS TECHNOLOGY Co Ltd filed Critical JIANGXI MAGPIONEER NEW MATERIALS TECHNOLOGY Co Ltd
Priority to CN201420439238.XU priority Critical patent/CN204010941U/en
Application granted granted Critical
Publication of CN204010941U publication Critical patent/CN204010941U/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a kind of I shape ignition coil magnetic core, belong to electric components field.Comprise cylinder and end cap, wherein, described cylinder and end cap are one-body molded through voltage stabilizing technique by soft-magnetic composite material respectively; The edge at the two ends up and down of described cylinder all has identical step groove, makes the end face at upper and lower two ends be major arc shape; The corresponding end cap in upper and lower end face of described cylinder is identical end cap, and the middle part of this end cap has the major arc through hole corresponding with cylinder end face, and the main body profile of this end cap is the major arc shape of arc ratio identical with its through hole simultaneously.The utility model magnetic core is compared the stacking moulding of silicon steel sheet punching press, not only have lower cost advantage, and can reduce heating because resistivity of material promotes in performance, Optimize magnetic circult design is difficult for occurring leakage field, therefore obviously improve the useful life of ignition coil, saved car owner's replacement cost.

Description

A kind of I shape ignition coil magnetic core
Technical field
The utility model belongs to electric components field, is specifically related to a kind of I shape ignition coil magnetic core.
Background technology
In automotive ignition system, ignition coil provides the important execution unit of ignition energy for air and fuel oil mixture in ignition engine cylinder, and ignition coil magnetic core/iron core is as the core of ignition coil, the structure that it uses and material, have important impact for the ignition energy of ignition coil.
Existing ignition coil iron core/magnetic core mostly is silicon steel sheet or the stacked one that is fixed into of ferroalloy sheet, and forming ellipticity or square frame shape, this type of fabrication of iron core is comparatively complicated, needs the diel of the many covers of design, different size stack of laminations efficiency is lower, and its production cost is higher; And the low eddy current loss of its resistivity is high, and radiating effect is poor, and between silicon steel sheet lamination, there is certain air gap to have leakage field phenomenon, therefore after service time is long, ignition coil energy decreases, causes automotive ignition and has some setbacks, affect traffic safety, therefore need irregularly to change, increased car owner's consumer cost.
Summary of the invention
The purpose of this utility model is according to the problems referred to above, and a kind of I shape ignition coil magnetic core is provided, and this magnetic core resistivity and magnetic flux density are all higher, and can not produce leakage field phenomenon, have higher useful life.
For achieving the above object, the technical scheme that the utility model adopts is:
A kind of I shape ignition coil magnetic core, comprises cylinder and end cap, it is characterized in that: described cylinder and end cap are one-body molded through voltage stabilizing technique by soft-magnetic composite material respectively; The edge at the two ends up and down of described cylinder all has identical step groove, makes the end face at upper and lower two ends be major arc shape; The corresponding end cap in upper and lower end face of described cylinder is identical end cap, and the middle part of this end cap has the major arc through hole corresponding with cylinder end face, and the main body profile of this end cap is the major arc shape of arc ratio identical with its through hole simultaneously.
Described cylinder and end cover surface are all closely fitted with the insulation silicone grease layer that thermal diffusivity is good.
The end cap through hole that described cylinder is corresponding with it is matched in clearance, and its gap width is 0.02-0.03mm.
The radius of described end cap main body is 1.5-2.5 times of its corresponding through hole radius.
Chamfered is all passed through in the corner of described end cap.
Technique effect of the present utility model:
1, magnetic core each several part is compound one-body molded through voltage stabilizing technique by soft magnetism respectively, compares the stacking technique of silicon steel sheet punching press, not only has lower cost, and resistivity high-eddy damages low, be difficult for leakage field occurs, have higher useful life, saved car owner's replacement cost;
2, I-type magnetic core is with respect to frame shape or day shaped magnetic core, not only simple in structure, and more rapid at installation composite type, and on magnetic core, winding around is more convenient;
3, the cylinder of magnetic core and the through hole of end cap are all major arc shape, have strengthened interfixing between cylinder and end cap, and the major arc shape that the main body of end cap is same ratio simultaneously can be fixed by hard point fire coil in automobile.
Brief description of the drawings
Fig. 1 is column structure schematic diagram.
Fig. 2 is end cover structure schematic diagram.
Illustrate: 1. cylinder 2. end face 3. step groove 4. end cap 5. through hole 6. corners.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described further.
A kind of I shape ignition coil magnetic core, its cylinder (1) and end cap (4) are compound one-body molded through voltage stabilizing technique by soft magnetic material respectively, this soft-magnetic composite material is water-atomized iron powder, iron sponge powder or the ferrous alloy powder of high-purity high-compressibility, wraps up through organic material.
Iron core surface is all closely fitted with the insulation silicone grease layer that thermal diffusivity is good; The edge at the two ends up and down of cylinder (1) all has identical step groove (3), makes the end face (2) at upper and lower two ends be major arc shape; The middle part of end cap (4) has the major arc through hole corresponding with cylinder (1) end face (2), end cap (4) through hole that cylinder (1) is corresponding with it is matched in clearance, gap width is 0.02-0.03mm, the main body profile of this end cap (4) is the major arc shape of arc ratio identical with its through hole simultaneously, the major arc radius of its main body is 1.5-2.5 times of its corresponding through hole radius, and its corner (6) all pass through chamfered simultaneously.
Preparation technology of the present utility model mainly comprises following step:
1, raw material are selected: water-atomized iron powder, iron sponge powder or ferrous alloy powder (containing Si, Al, the elements such as Co) with high-purity high-compressibility are raw material;
2, powder insulating wrapped and mixed process: use organic or inorganic insulated with material cladding iron powder, add binding agent, profit agent etc., powder is fully mixed;
3, moulding compacting: the powder mixing is poured in corresponding rigid die and carried out single shaft to compacting, and pressing pressure is generally at 800MPa;
4, heat treatment: temperature general control is between 400-600 DEG C;
5, face coat or spray paint: goods, by the high pressure Silicon-On-Insulator membrane of lipoprotein of fitting, increase its stability and thermal diffusivity, after oil immersion is processed, plastic.
The above has only expressed preferred implementation of the present utility model, and it describes comparatively concrete and detailed, but can not therefore be interpreted as the restriction to the utility model the scope of the claims.It should be pointed out that for the person of ordinary skill of the art, without departing from the concept of the premise utility, can also make some distortion, improvement and substitute, these all belong to protection range of the present utility model.Therefore, the protection range of the utility model patent should be as the criterion with claims.

Claims (5)

1. an I shape ignition coil magnetic core, comprises cylinder (1) and end cap (4), it is characterized in that: described cylinder (1) and end cap (4) are one-body molded through voltage stabilizing technique by soft-magnetic composite material respectively; The edge at the two ends up and down of described cylinder (1) all has identical step groove (3), makes the end face (2) at upper and lower two ends be major arc shape; The corresponding end cap in upper and lower end face (2) (4) of described cylinder (1) is identical end cap (4), the middle part of this end cap (4) has the major arc through hole corresponding with cylinder (1) end face (2), and the main body profile of this end cap (4) is the major arc shape of arc ratio identical with its through hole simultaneously.
2. a kind of I shape ignition coil magnetic core according to claim 1, is characterized in that: described cylinder (1) and end cap (4) surface are all closely fitted with the insulation silicone grease layer that thermal diffusivity is good.
3. a kind of I shape ignition coil magnetic core according to claim 1, is characterized in that: end cap (4) through hole that described cylinder (1) is corresponding with it is matched in clearance, and its gap width is 0.02-0.03mm.
4. a kind of I shape ignition coil magnetic core according to claim 1, is characterized in that: the radius of described end cap (4) main body is 1.5-2.5 times of its corresponding through hole radius.
5. a kind of I shape ignition coil magnetic core according to claim 1, is characterized in that: chamfered is all passed through in the corner (6) of described end cap (4).
CN201420439238.XU 2014-08-06 2014-08-06 A kind of I shape ignition coil magnetic core Expired - Fee Related CN204010941U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420439238.XU CN204010941U (en) 2014-08-06 2014-08-06 A kind of I shape ignition coil magnetic core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420439238.XU CN204010941U (en) 2014-08-06 2014-08-06 A kind of I shape ignition coil magnetic core

Publications (1)

Publication Number Publication Date
CN204010941U true CN204010941U (en) 2014-12-10

Family

ID=52050904

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420439238.XU Expired - Fee Related CN204010941U (en) 2014-08-06 2014-08-06 A kind of I shape ignition coil magnetic core

Country Status (1)

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CN (1) CN204010941U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109378174A (en) * 2018-12-19 2019-02-22 合肥博微田村电气有限公司 A kind of liquid cooling core structure of electromagnetic induction element

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109378174A (en) * 2018-12-19 2019-02-22 合肥博微田村电气有限公司 A kind of liquid cooling core structure of electromagnetic induction element

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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: 20141210

Termination date: 20190806

CF01 Termination of patent right due to non-payment of annual fee