CN102592811A - Powdered-alloy tapped ignition coil and manufacture method thereof - Google Patents
Powdered-alloy tapped ignition coil and manufacture method thereof Download PDFInfo
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- CN102592811A CN102592811A CN2012100287286A CN201210028728A CN102592811A CN 102592811 A CN102592811 A CN 102592811A CN 2012100287286 A CN2012100287286 A CN 2012100287286A CN 201210028728 A CN201210028728 A CN 201210028728A CN 102592811 A CN102592811 A CN 102592811A
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- coil
- epoxy resin
- magnetic sheet
- powder metallurgy
- packet type
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Abstract
The invention relates to a powdered-alloy tapped ignition coil and a manufacture method of the ignition coil. The powdered-alloy tapped ignition coil comprises a large casing, a coil assembly and an ignition module mounted in the large casing, wherein the coil assembly includes a primary winding, a secondary winding sheathed on the outer side of the primary coil, and a small casing sheathed on the outer side of the primary winding and the secondary winding; the space between the small casing and the primary winding as well as the secondary winding is filled with epoxy resin (A); both ends of a magnetic core are respectively connected with a magnetic sheet covered with a magnetic sheet cover after passing through the inside the primary winding; the space between the coil assembly and the large casing is filled with epoxy resin (B); and the hardness of epoxy resin (B) is smaller than that of epoxy resin (A). The powdered-alloy tapped ignition coil provided by the invention solves the problems existing in the prior art, and has long service life.
Description
Technical field
The present invention relates to the fit of the coil inside of packing into of a kind of magnetic core that is used for powder metallurgy packet type ignition coil and powder metallurgy manufacturing on the automobile engine, magnetic sheet.
Background technology
In automotive engine ignition system, ignition coil is a kind of execution unit that ignition energy is provided for the air in the ignition engine cylinder and fuel oil mixture.It is a kind of special burst stepup transformer based on electromagnetic induction principle, and it passes through spark plug generation electric spark with the low-voltage of 8-16V by the voltage that the setpoint frequency break-make makes it secondary generation 20-40KV.
Shown in accompanying drawing 1 to accompanying drawing 4; Powder metallurgy packet type ignition coil of the prior art comprises big housing, is installed on coil assembly and ignition module in the big housing; Coil assembly comprises primary coil, be sheathed on the outside secondary coil of primary coil, pass the inner magnetic core of primary coil, be connected to the magnetic sheet at magnetic core two ends and be wrapped in the peripheral insulator of leading, and coil assembly and ignition module packed into successively adopt the disposable embedding of ordinary epoxy resin behind the big housing.The output voltage of powder metallurgy packet type ignition coil can reach the leading portion output voltage, but because the use of magnetic core, magnetic sheet, to the bigger influence of life-span tool of product design, assembly technology and the product of ignition coil.Raising along with aspects such as development of modern industry and resource utilizations; Because magnetic core, magnetic sheet belong to metal species, when epoxy resin that itself and modern technologies are generally used (be defined as epoxy resin A: hard and crisp, relatively poor with the stress buffer effect to the point discharge of metal after solidifying) directly contacts and can cause its shortcoming following:
1. magnetic core, magnetic sheet directly contact with epoxy resin A, owing to the reason of the point discharge of metal and stress can cause the epoxy resin cracking.
2. epoxy resin cracking, seal failure causes the puncture of product, phenomenon such as creepage, makes the life of product time short, even problem such as scraps.
Summary of the invention
In order to overcome above-mentioned shortcoming, the purpose of this invention is to provide a kind of product long powder metallurgy packet type ignition coil and manufacturing approach thereof in useful life.
According to an aspect of the present invention; The invention provides a kind of powder metallurgy packet type ignition coil; It comprises big housing, is installed on coil assembly and ignition module in the described big housing; Described coil assembly comprises primary coil, is sheathed on the outside secondary coil of described primary coil, is sheathed on described primary coil and the outside small shell of secondary coil; Be filled with epoxy resin A between described small shell and described primary coil, the secondary coil; Two ends were connected to the magnetic sheet that surface coverage has the magnetic sheet cover after magnetic core passed described primary coil inside, were filled with epoxy resin B between described coil assembly and the described big housing, and the hardness of described epoxy resin B is less than the hardness of described epoxy resin A.
As further improvement, the surface of described small shell, described magnetic sheet cover is slick and sly shape.
As further improvement, described small shell, described magnetic sheet cover are processed by plastic material.
According to another aspect of the present invention, a kind of manufacturing approach of powder metallurgy packet type ignition coil is provided, has comprised the steps:
A), reliable with epoxy resin A embedding sealing with behind the nested successively small shell of packing into of primary coil and secondary coil;
B) magnetic sheet is packed in the magnetic sheet cover, be connected to the inner magnetic core two ends of the primary coil that passes coil assembly again to form coil assembly;
C) coil assembly, ignition module are packed into behind the big housing successively, mend with epoxy resin B and irritate; Wherein, the hardness of described epoxy resin B is less than the hardness of described epoxy resin A.
As further improvement, the surface of described small shell, described magnetic sheet cover is slick and sly shape.
As further improvement, described small shell, described magnetic sheet cover are processed by plastic material.
Owing to adopted technique scheme; Make the present invention have the following advantages: the epoxy resin A that 1, is generally used by original magnetic core and magnetic sheet and modernization directly contacts; Become through the plastic cement small shell and isolate, prevented the epoxy resin cracking, the life-span of product is improved greatly; 2, the manufacturing articles risk is low, the technology easy operating; 3, improve product life-span, reduce scrappage.
Description of drawings
Accompanying drawing 1 is the three-dimensional broken away view of the coil assembly of powder metallurgy packet type ignition coil in the prior art;
Accompanying drawing 2 is the stereogram of the coil assembly of powder metallurgy packet type ignition coil in the prior art;
Accompanying drawing 3 is the assembling shell figure of powder metallurgy packet type ignition coil in the prior art;
Accompanying drawing 4 is the embedding figure of powder metallurgy packet type ignition coil in the prior art;
Accompanying drawing 5 is the small shell installation diagram of the powder metallurgy packet type ignition coil according to the present invention;
Accompanying drawing 6 is the small shell embedding figure of the powder metallurgy packet type ignition coil according to the present invention;
Accompanying drawing 7 is the three-dimensional broken away view of the coil assembly of powder metallurgy packet type ignition coil according to the present invention;
Accompanying drawing 8 is the stereogram of the coil assembly of powder metallurgy packet type ignition coil according to the present invention;
Accompanying drawing 9 is the assembling shell figure of the powder metallurgy packet type ignition coil according to the present invention;
Accompanying drawing 10 is the embedding figure of the powder metallurgy packet type ignition coil according to the present invention.
Embodiment
Below in conjunction with accompanying drawing preferred embodiment of the present invention is set forth in detail, thereby protection scope of the present invention is made more explicit defining so that advantage of the present invention and characteristic can be easier to it will be appreciated by those skilled in the art that.
Referring to accompanying drawing 5 to accompanying drawing 10; A kind of manufacturing approach of powder metallurgy packet type ignition coil; This kind powder metallurgy packet type ignition coil comprises big housing 9, is installed on coil assembly and ignition module 8 in the big housing 9; Coil assembly comprises primary coil 1, be sheathed on the outside secondary coil 2 of primary coil 1, be sheathed on the outside small shell 7 of primary coil 1 and secondary coil 2; Be filled with epoxy resin A101 between small shell 7 and primary coil 1, the secondary coil 2; Magnetic core 3 passes two ends, primary coil 1 inner back and is connected to the magnetic sheet 41,42 that surface coverage has magnetic sheet cover 61,62, is filled with epoxy resin B102 between coil assembly and the big housing 9, and the hardness of epoxy resin B102 is less than the hardness of epoxy resin A101.It comprises the steps:
A) referring to accompanying drawing 5 with shown in the accompanying drawing 6, according to big housing, primary coil, magnetic core, magnetic sheet, design small shell, design and develop the magnetic sheet cover according to magnetic sheet again, small shell and magnetic sheet cover surface slyness more are good more and process by plastic material; Behind the nested successively small shell 7 of packing into of primary coil 1 and secondary coil 2, it is reliable to carry out the embedding sealing first time with epoxy resin A101;
B) referring to shown in accompanying drawing 7 and the accompanying drawing 8, with plastics magnetic sheet cover 61,62 magnetic sheet 41,42 is encased, magnetic core 3 two ends that are connected to primary coil 1 inside of passing coil assembly again are to form coil assembly; What need proposition is that plastics magnetic sheet cover 61,62 will cover the one side of the magnetic sheet 41,42 of small shell 7 at least;
C) referring to accompanying drawing 9 with shown in the accompanying drawing 10, coil assembly, ignition module 8 are packed into behind the big housing 9 successively, mend filling with epoxy resin B102; Wherein, the hardness of epoxy resin B102 is less than the hardness of epoxy resin A101, and epoxy resin B102 belongs to soft type epoxy resin, to the point discharge of metal and stress all by bigger cushioning effect.
In sum, owing to the buffer action that has adopted dissimilar epoxy resin embedding of secondary and magnetic sheet cover, small shell, the present invention can avoid a series of problems of above-mentioned appearance, and the life-span, the utilization rate of raw materials that improve product are high.Above execution mode only is explanation technical conceive of the present invention and characteristics; Its purpose is to let the people that is familiar with this technology understand content of the present invention and implements; Can not limit protection scope of the present invention with this; All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed in protection scope of the present invention.
Claims (6)
1. powder metallurgy packet type ignition coil; It comprises big housing (9), is installed on coil assembly and ignition module (8) in the described big housing (9); It is characterized in that: described coil assembly comprises primary coil (1), is sheathed on the outside secondary coil (2) of described primary coil (1), is sheathed on described primary coil (1) small shell (7) outside with secondary coil (2); Be filled with epoxy resin A (101) between described small shell (7) and described primary coil (1), the secondary coil (2); Magnetic core (3) passes two ends, the inner back of described primary coil (1) and is connected to the magnetic sheet (41,42) that surface coverage has magnetic sheet cover (61,62); Be filled with epoxy resin B (102) between described coil assembly and the described big housing (9), the hardness of described epoxy resin B (102) is less than the hardness of described epoxy resin A (101).
2. powder metallurgy packet type ignition coil according to claim 1 is characterized in that: the surface of described small shell (7), described magnetic sheet cover (61,62) is slick and sly shape.
3. powder metallurgy packet type ignition coil according to claim 1 and 2 is characterized in that: described small shell (7), described magnetic sheet cover (61,62) are processed by plastic material.
4. a manufacturing approach that is used for powder metallurgy packet type ignition coil as claimed in claim 1 is characterized in that, comprises the steps:
With behind primary coil (1) and the nested successively small shell of packing into of secondary coil (2) (7), reliable with epoxy resin A (101) embedding sealing;
Magnetic sheet (41,42) is packed in the magnetic sheet cover (61,62), be connected to inner magnetic core (3) two ends of the primary coil (1) that passes coil assembly again to form coil assembly;
Coil assembly, ignition module (8) are packed into behind the big housing (9) successively, mend with epoxy resin B (102) and irritate; Wherein, the hardness of described epoxy resin B (102) is less than the hardness of described epoxy resin A (101).
5. the manufacturing approach of powder metallurgy packet type ignition coil according to claim 4 is characterized in that: the surface of described small shell (7), described magnetic sheet cover (61,62) is slick and sly shape.
6. according to the manufacturing approach of claim 4 or 5 described powder metallurgy packet type ignition coils, it is characterized in that: described small shell (7), described magnetic sheet cover (61,62) are processed by plastic material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028728.6A CN102592811B (en) | 2012-02-10 | 2012-02-10 | Powdered-alloy tapped ignition coil and manufacture method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210028728.6A CN102592811B (en) | 2012-02-10 | 2012-02-10 | Powdered-alloy tapped ignition coil and manufacture method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102592811A true CN102592811A (en) | 2012-07-18 |
| CN102592811B CN102592811B (en) | 2015-01-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210028728.6A Active CN102592811B (en) | 2012-02-10 | 2012-02-10 | Powdered-alloy tapped ignition coil and manufacture method thereof |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158321A (en) * | 2016-08-11 | 2016-11-23 | 昆山凯迪汽车电器有限公司 | Ignition coil magnetic structure |
| CN110391066A (en) * | 2018-04-17 | 2019-10-29 | 博格华纳路德维希堡有限公司 | Ignition coil and its manufacturing method |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6763816B1 (en) * | 1999-06-09 | 2004-07-20 | Hitachi, Ltd. | Internal combustion engine ignition coil |
| CN201174316Y (en) * | 2008-03-19 | 2008-12-31 | 李延军 | Dry type sparking coil of vehicle |
| CN201758068U (en) * | 2010-06-21 | 2011-03-09 | 浙江朕炜电器有限公司 | Efficient dry-type electronic injection ignition coil capable of material saving |
| CN102132365A (en) * | 2008-08-22 | 2011-07-20 | 住友电气工业株式会社 | Reactor component and reactor |
| CN202443848U (en) * | 2012-02-10 | 2012-09-19 | 昆山凯迪汽车电器有限公司 | Powder alloy grouped ignition coil |
-
2012
- 2012-02-10 CN CN201210028728.6A patent/CN102592811B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6763816B1 (en) * | 1999-06-09 | 2004-07-20 | Hitachi, Ltd. | Internal combustion engine ignition coil |
| CN201174316Y (en) * | 2008-03-19 | 2008-12-31 | 李延军 | Dry type sparking coil of vehicle |
| CN102132365A (en) * | 2008-08-22 | 2011-07-20 | 住友电气工业株式会社 | Reactor component and reactor |
| CN201758068U (en) * | 2010-06-21 | 2011-03-09 | 浙江朕炜电器有限公司 | Efficient dry-type electronic injection ignition coil capable of material saving |
| CN202443848U (en) * | 2012-02-10 | 2012-09-19 | 昆山凯迪汽车电器有限公司 | Powder alloy grouped ignition coil |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106158321A (en) * | 2016-08-11 | 2016-11-23 | 昆山凯迪汽车电器有限公司 | Ignition coil magnetic structure |
| CN110391066A (en) * | 2018-04-17 | 2019-10-29 | 博格华纳路德维希堡有限公司 | Ignition coil and its manufacturing method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102592811B (en) | 2015-01-21 |
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