CN104882261B - The socket technique of automobile ignition coil core sheath and this sheath and iron core - Google Patents
The socket technique of automobile ignition coil core sheath and this sheath and iron core Download PDFInfo
- Publication number
- CN104882261B CN104882261B CN201510362812.5A CN201510362812A CN104882261B CN 104882261 B CN104882261 B CN 104882261B CN 201510362812 A CN201510362812 A CN 201510362812A CN 104882261 B CN104882261 B CN 104882261B
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- China
- Prior art keywords
- sheath
- iron core
- core
- ignition coil
- mould
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- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 title claims abstract description 63
- 238000000034 method Methods 0.000 title claims abstract description 13
- 239000003822 epoxy resin Substances 0.000 claims abstract description 26
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 26
- 238000001802 infusion Methods 0.000 claims abstract description 5
- 239000013013 elastic material Substances 0.000 claims abstract description 4
- 239000003292 glue Substances 0.000 claims description 6
- 239000000463 material Substances 0.000 claims description 4
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000001816 cooling Methods 0.000 claims description 3
- 238000007789 sealing Methods 0.000 claims description 3
- 239000000741 silica gel Substances 0.000 claims description 3
- 229910002027 silica gel Inorganic materials 0.000 claims description 3
- 238000007569 slipcasting Methods 0.000 claims description 3
- 230000006378 damage Effects 0.000 abstract description 5
- 230000010412 perfusion Effects 0.000 description 8
- 230000000694 effects Effects 0.000 description 6
- 238000005336 cracking Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 4
- 239000004593 Epoxy Substances 0.000 description 3
- 241000167854 Bourreria succulenta Species 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- LNEPOXFFQSENCJ-UHFFFAOYSA-N haloperidol Chemical compound C1CC(O)(C=2C=CC(Cl)=CC=2)CCN1CCCC(=O)C1=CC=C(F)C=C1 LNEPOXFFQSENCJ-UHFFFAOYSA-N 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The invention discloses a kind of automobile ignition coil core sheath, including the sheath body in " Contraband " type structure, described sheath body is made up of soft elastic material, this internal inner chamber being provided with for installing iron core of sheath, described sheath body includes that pars intermedia and integral type are connected to the side portion at pars intermedia two ends, and the outer surface of described pars intermedia and side portion offers some grooves for infusion epoxy resin.Also disclose the socket technique of this sheath and iron core.The invention reside in the existing sheath of solution and easily block gap between iron core and housing, cause epoxy resin to irrigate incomplete and existing sheath and iron core socket inconvenience, the easily problem of damage sheath.
Description
Technical field
The present invention relates to automobile component field, be specifically related to ignition coil field.
Background technology
Existing automobile ignition coil parts mainly include iron core, primary coil, secondary coil, housing and with the primary coil low pressure, input end of external connection and be connected the high-voltage output end of secondary coil and respectively organize inserting terminal.During assembling, the coil block being made up of iron core, primary coil and secondary coil is loaded in housing, and by being packaged from case top infusion epoxy resin.
The iron core of this ignition coil is directly covered with epoxy, and owing to core structure exists right angle faceted pebble and wedge angle, and forms the great solid body of hardness after epoxy resin cure.During ignition coil work, cold and hot variations in temperature can occur, owing to iron core is different with epoxy expansion coefficient, stress is produced in making epoxy encapsulation body, and occur position to deform, and structure length is the biggest, stress is bigger, initial ring epoxy resins can peel off or crack at the right angle of iron core and wedge angle stress concentration portion position, causes product to puncture failure.
The Chinese patent document of existing Application No. 201220342883.0 discloses a kind of protection set preventing automobile ignition coil epoxy resin cracking from puncturing; it is characterized in that: being fitted by inner surface and wrapping up the overcoat of ignition coil iron core is constituted, and the material of described overcoat is elastic.Although the protection set arranged serves the effect preventing ignition coil epoxy resin from ftractureing, but also creates new problem simultaneously.Existing ignition coil housing structure is extremely compact, need to ensure can fill in housing completely during epoxy resin perfusion, small gap is generally left between housing and iron core, infiltration for epoxy resin, now due at the tradition protected set of iron core overcoat, and protection cuff is flexible, above-mentioned gap is largely filled up by protection set, epoxy resin is made to be difficult to perfusion completely when perfusion, the easy residual gaps of enclosure interior, and then affect the insulating properties of ignition coil, therefore prior art also needs to one and can effectively ensure that epoxy resin can irrigate ignition coil iron core sheath completely.
The most existing ignition coil iron core the most all becomes " Contraband " type structure, and two ends include kink, and existing protection set needs to be placed on closely on iron core; due to the existence of kink, this suit trouble very, workman's manual operations; not only it is easily damaged protection set, and is set with not in place.
Summary of the invention
The deficiency existed for prior art, the invention provides a kind of automobile ignition coil core sheath, prevents in ignition coil while epoxy resin cracking playing, it is possible to the effective completeness ensureing epoxy resin perfusion, improves the stability in use of product.
For achieving the above object, the technical scheme is that a kind of automobile ignition coil core sheath, including the sheath body in " Contraband " type structure, described sheath body is made up of soft elastic material, this internal inner chamber being provided with for installing iron core of sheath, described sheath body includes that pars intermedia and integral type are connected to the side portion at pars intermedia two ends, and the outer surface of described pars intermedia and side portion offers some grooves for infusion epoxy resin.
The quantity of described groove is four, and two of which is positioned at pars intermedia, and two other lays respectively at two side portion.
Described sheath body constitutes the jaws having " Contraband " type, and described groove is positioned at the sheath body opposite side relative to jaws.
The thickness of described sheath body is 1.1～1.5mm.
The material of described sheath body is elastic silica gel.
By using technique scheme, the present invention is by being provided for the groove that epoxy resin penetrates on sheath body, thus avoid sheath body and the gap between iron core and housing is filled up, and the setting of groove, also improve the contact area between epoxy resin and sheath body, insulating properties are more preferable, and shock proof ability is higher, preferably play after preventing epoxy resin cure because of from the different of the iron core coefficient of expansion and cause cracking, breakdown situation to occur.And epoxy resin is when perfusion, the bottom of iron core can be flowed into along groove so that the perfusion of epoxy resin is the most complete, it is not easy to remain non-filling chink, improves product quality, and using effect is more stable.
Present invention also offers the socket technique of a kind of sheath and iron core, apply to above-mentioned sheath, be more convenient to be connected on iron core by sheath, suit puts in place, and will not damage sheath.
For achieving the above object, the technical scheme is that the socket technique of a kind of sheath and iron core, apply to the socket of above-mentioned automobile ignition coil core sheath and iron core, this sheath is integrated and is molded on iron core, its step includes secured core, utilizes two ends of fixture secured core；Iron core is fixed mould, mould includes that upper die and lower die, upper mold dock with lower mold, and mould fits tightly sealing near two ends of iron core with iron core, retain the gap of sheath desired thickness between mould inner wall and iron core, be provided with in mould for making the convex stupefied of groove；Slip casting, the injected hole in mould injects glue, treats that glue fills mould inside and seals injected hole again；Cooling, form removal, thus complete the socket of sheath and iron core.
Traditional socket technique is artificial socket, sheath is strip, and iron core is generally with two kinks, therefore artificial socket inconvenience very, easily sheath is caused damage, and due to the existence of kink, sheath is stretched in kink, therefore sheath weakens in kink elastic effect, and thickness reduces, and kink is affected by the place that stress is concentrated most, the most traditional sheath socket technique, while socket inconvenience, there is also the biggest mass defect.The present invention, by sheath integral type being molded on iron core, effectively solves traditional handicraft socket inconvenience, is set with not in place, and the problem that there is mass defect.
Accompanying drawing explanation
Fig. 1 is the structural representation of sheath body of the present invention；
Fig. 2 is that iron core carries out being socketed schematic diagram during sheath by mould；
Fig. 3 is the exploded perspective view after iron core passes through mould socket sheath.
Description of reference numerals: 1, sheath body；2, iron core；3, mould；11, pars intermedia；12, side portion；13, inner chamber；14, groove；31, upper mold；32, lower mold；33, convex stupefied；34, injected hole.
Detailed description of the invention
Referring to figs. 1 through Fig. 3, the embodiment of the present invention is described further.
Automobile ignition coil core sheath of the present invention, as shown in Figure 1, including the sheath body 1 in " Contraband " type structure, described sheath body 1 is made up of soft elastic material, the inner chamber 13 for installing iron core 2 it is provided with in sheath body 1, described sheath body 1 includes that pars intermedia 11 and integral type are connected to the side portion 12 at pars intermedia 11 two ends, and the outer surface of described pars intermedia 11 and side portion 12 offers some grooves 14 for infusion epoxy resin.The stalloy offering the vertical iron core in direction 2 of groove 14 is arranged, and in this programme, the quantity of described groove 14 is four, and two of which is positioned at pars intermedia 11, and two other lays respectively at two side portion 12.Above-mentioned quantity arranges and can be varied from according to the difference of ignition coil specification, and such scheme also resides in, groove 14 is only disposed on pars intermedia 11 and side portion 12, and the kink being positioned at sheath body 1 is not provided with groove 14, mainly due at this being the local consideration concentrated most that meets with stresses
Described sheath body 1 constitutes the jaws having " Contraband " type, and described groove 14 is positioned at the opposite side of the relative jaws of sheath body 1.Groove 14 is the opposite side being opened in the relative jaws of sheath body 1, and this side contacts with housing, and groove 14 is arranged at this side, when iron core 2 is installed in housing, can reserve space between groove 14 and housing.
Further, in order to ensure the elastic effect of sheath body 1, as preferably, the thickness of described sheath body 1 is 1.1～1.5mm.Further, preferably 1.2mm
Further, the material of described sheath body 1 is preferably elastic silica gel based on elastomeric consideration.
The present invention is by being provided for the groove 14 that epoxy resin penetrates on sheath body 1, thus avoid sheath body 1 and the gap between iron core 2 and housing is filled up, and the setting of groove 14, also improve the contact area between epoxy resin and sheath body 1, insulating properties are more preferable, shock proof ability is higher, preferably play after preventing epoxy resin cure because of from the different of iron core 2 coefficient of expansion and cause cracking, breakdown situation to occur.And epoxy resin is when perfusion, can flow into the bottom of iron core 2 along groove 14 so that the perfusion of epoxy resin is the most complete, it is not easy to remain non-filling chink, improves product quality, and using effect is more stable.
Present invention also offers the socket technique of a kind of sheath and iron core 2, apply to above-mentioned sheath, be more convenient to be connected on iron core 2 by sheath, suit puts in place, and will not damage sheath.
Its scheme is as described below, a kind of sheath and the socket technique of iron core 2, applies to the socket of above-mentioned sheath and iron core 2, and described sheath is integrated and is molded on iron core 2, and its step includes secured core 2, utilizes two ends of fixture secured core 2；Iron core 2 is fixed mould 3, the structure of mould 3 is as shown in Figure 3, mould 3 includes upper mold 31, lower mold 32, upper mold 31 is docked with lower mold 32, mould 3 fits tightly sealing near two ends of iron core 2 with iron core 2, between mould 3 inwall and iron core 2 retain sheath desired thickness gap, be provided with in mould 3 for make groove 14 convex stupefied 33；Slip casting, the injected hole 34 in mould 3 injects glue, treats that glue fills mould 3 inside and seals injected hole 34 again；Cooling, form removal, thus complete the socket of sheath and iron core 2.
Traditional socket technique is artificial socket, sheath is strip, and iron core 2 is generally with two kinks, therefore artificial socket inconvenience very, easily sheath is caused damage, and due to the existence of kink, sheath is stretched in kink, therefore sheath weakens in kink elastic effect, and thickness reduces, and kink is affected by the place that stress is concentrated most, the most traditional sheath socket technique, while socket inconvenience, there is also the biggest mass defect.The present invention, by sheath integral type being molded on iron core 2, effectively solves traditional handicraft socket inconvenience, is set with not in place, and the problem that there is mass defect.
The foregoing is only presently preferred embodiments of the present invention, be not limited to the present invention, all within the design concept of the present invention, any modification, equivalent substitution and improvement etc. made, should be included within the scope of the present invention.
Claims (6)
1. an automobile ignition coil core sheath, it is characterized in that: include the sheath body in " Contraband " type structure, described sheath body is made up of soft elastic material, this internal inner chamber being provided with for installing iron core of sheath, described sheath body includes that pars intermedia and integral type are connected to the side portion at pars intermedia two ends, and the outer surface of described pars intermedia and side portion offers some grooves for infusion epoxy resin.
Automobile ignition coil core sheath the most according to claim 1, is characterized in that: the quantity of described groove is four, and two of which is positioned at pars intermedia, and two other lays respectively at two side portion.
Automobile ignition coil core sheath the most according to claim 1, is characterized in that: described sheath body constitutes the jaws having " Contraband " type, and described groove is positioned at the sheath body opposite side relative to jaws.
Automobile ignition coil core sheath the most according to claim 1, is characterized in that: the thickness of described sheath body is 1.1～1.5mm.
Automobile ignition coil core sheath the most according to claim 1, is characterized in that: the material of described sheath is elastic silica gel.
6. a sheath and the socket technique of iron core, socket for automobile ignition coil core sheath as claimed in claim 1 Yu iron core, it is characterized in that: this sheath is integrated and is molded on iron core, and its step includes secured core, utilize two ends of fixture secured core；Iron core is fixed mould, mould includes that upper die and lower die, upper mold dock with lower mold, and mould fits tightly sealing near two ends of iron core with iron core, retain the gap of sheath desired thickness between mould inner wall and iron core, be provided with in mould for making the convex stupefied of groove；Slip casting, the injected hole in mould injects glue, treats that glue fills mould inside and seals injected hole again；Cooling, form removal, thus complete the socket of sheath and iron core.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362812.5A CN104882261B (en) | 2015-06-24 | 2015-06-24 | The socket technique of automobile ignition coil core sheath and this sheath and iron core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510362812.5A CN104882261B (en) | 2015-06-24 | 2015-06-24 | The socket technique of automobile ignition coil core sheath and this sheath and iron core |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN104882261A CN104882261A (en) | 2015-09-02 |
| CN104882261B true CN104882261B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510362812.5A Active CN104882261B (en) | 2015-06-24 | 2015-06-24 | The socket technique of automobile ignition coil core sheath and this sheath and iron core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104882261B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110911094B (en) * | 2019-12-05 | 2021-11-26 | 龙南县方成科技有限公司 | Surround durable inductor |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2798470B1 (en) * | 1999-09-09 | 2001-12-21 | Pioch Sa | INDUCTIVE SENSOR FOR MEASURING A CURRENT IN A CONDUCTOR |
| CN201138611Y (en) * | 2007-10-27 | 2008-10-22 | 遵义长征汽车零部件有限公司 | Dry-type sparking coil with encapsulation protecting layer for iron core |
| CN202678079U (en) * | 2012-07-16 | 2013-01-16 | 重庆长安志阳汽车电气有限责任公司 | Protecting jacket for preventing epoxy resin of ignition coil for automobile from being cracked and broken down |
| CN202871482U (en) * | 2012-07-18 | 2013-04-10 | 北京新创四方电子有限公司 | High voltage withstanding totally-enclosed annular magnetic core thyristor trigger transformer |
| CN204167075U (en) * | 2014-09-17 | 2015-02-18 | 天津市新阳汽车电子有限公司 | A kind of automobile ignition coil coil block with anti-shell cracking rubber cover |
| CN204289033U (en) * | 2014-10-08 | 2015-04-22 | 长葛市红亮电器厂 | Transformer core protective jacket |
| CN204720302U (en) * | 2015-06-24 | 2015-10-21 | 浙江凯硕汽车电子有限公司 | Automobile ignition coil core sheath |
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- 2015-06-24 CN CN201510362812.5A patent/CN104882261B/en active Active
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| CN104882261A (en) | 2015-09-02 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| EXSB | Decision made by sipo to initiate substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| PE01 | Entry into force of the registration of the contract for pledge of patent right |
Denomination of invention: Sheath for automotive ignition coil iron core and its connection process with iron core Effective date of registration: 20231012 Granted publication date: 20160928 Pledgee: Zhejiang Ruian Rural Commercial Bank Co.,Ltd. Luofeng sub branch Pledgor: ZHEJIANG KAISHUO AUTOMOBILE ELECTRONICS CO.,LTD. Registration number: Y2023980060790 |
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| PE01 | Entry into force of the registration of the contract for pledge of patent right |