CN205621593U - Prevent ignition coil fracture structure - Google Patents
Prevent ignition coil fracture structure Download PDFInfo
- Publication number
- CN205621593U CN205621593U CN201620291048.7U CN201620291048U CN205621593U CN 205621593 U CN205621593 U CN 205621593U CN 201620291048 U CN201620291048 U CN 201620291048U CN 205621593 U CN205621593 U CN 205621593U
- Authority
- CN
- China
- Prior art keywords
- ignition coil
- iron core
- rubber sleeve
- silicone rubber
- pressure winding
- 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
Links
- 238000004804 winding Methods 0.000 claims abstract description 35
- 229920002379 silicone rubber Polymers 0.000 claims abstract description 30
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 28
- 239000004945 silicone rubber Substances 0.000 claims abstract description 24
- 239000004593 Epoxy Substances 0.000 claims abstract 3
- 239000003822 epoxy resin Substances 0.000 claims description 13
- 229920000647 polyepoxide Polymers 0.000 claims description 13
- 238000005336 cracking Methods 0.000 claims description 11
- 238000001746 injection moulding Methods 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims 1
- 239000011347 resin Substances 0.000 claims 1
- 239000000463 material Substances 0.000 abstract description 4
- 238000010521 absorption reaction Methods 0.000 abstract 1
- 238000005253 cladding Methods 0.000 abstract 1
- RKTYLMNFRDHKIL-UHFFFAOYSA-N copper;5,10,15,20-tetraphenylporphyrin-22,24-diide Chemical group [Cu+2].C1=CC(C(=C2C=CC([N-]2)=C(C=2C=CC=CC=2)C=2C=CC(N=2)=C(C=2C=CC=CC=2)C2=CC=C3[N-]2)C=2C=CC=CC=2)=NC1=C3C1=CC=CC=C1 RKTYLMNFRDHKIL-UHFFFAOYSA-N 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 230000005674 electromagnetic induction Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 239000000295 fuel oil Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- -1 low pressure winding Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Landscapes
- Ignition Installations For Internal Combustion Engines (AREA)
Abstract
The utility model relates to an automobile engine technical field refers in particular to a prevent ignition coil fracture structure, including the ignition coil casing, be equipped with epoxy, low voltage winding, iron core subassembly and high voltage winding in the ignition coil casing, the iron core subassembly includes the little iron core of locating the big iron core in the low voltage winding and locating the high voltage winding both sides respectively, little iron core skin is equipped with the silicone rubber sleeve. The utility model discloses a such structure setting, through being equipped with the silicone rubber sleeve at little iron core skin, epoxy cladding again is outer in the silicone rubber sleeve, because the silicon rubber material can the active absorption internal stress, effectively reduces the fracture of product, extension product life.
Description
Technical field
The utility model relates to technical field of automobile engine, refers in particular to one and prevents ignition coil cracking structure.
Background technology
In automotive engine ignition system, ignition coil is that one is ignition engine cylinder air and fuel oil mixture carries
For the execution unit of ignition energy, it is a kind of special burst transformer based on electromagnetic induction principle, can low with 10～12V
Voltage is converted into 25000V, even more high.Why low tension on car can be uprised piezoelectricity by ignition coil, be due to its with common
The identical shape of transformer, low pressure winding is big with the turn ratio of high pressure winding, but ignition coil working method and common transformer
Equally, common transformer is continuously work, and ignition coil is then interrupter duty, it according to the different rotating speed of engine with
Different frequencies is repeated energy storage and exoergic.When low pressure winding switches on power, as the growth surrounding of electric current produces one very
Strong magnetic field, iron core stores magnetic field energy, and when switching device makes low-voltage winding circuit disconnect, the magnetic field of low pressure winding is rapid
Decay, high pressure winding will induce very high voltage.The magnetic field disappearance speed of low pressure winding is fast, and electric current disconnects the electric current of moment
Bigger, the turn ratio of two windings is bigger, then to induce voltage higher for high pressure winding.
At present, ignition coil epoxy resin is directly set on iron core, when ignition coil working environment alternating hot and cold, due to
The coefficient of expansion of epoxy resin and iron core there are differences, and easily produces internal stress, cause product to produce between epoxy resin and iron core
Crackle and ftracture.
Content of the invention
For problem above, the utility model provides one and prevents ignition coil cracking structure, by epoxy resin and iron
Being provided with silicone rubber sleeve between core, silicon rubber material can effectively absorb internal stress, effectively prevents the cracking of product, and extending product makes
Use the life-span.
To achieve these goals, the technical solution adopted in the utility model is as follows:
One prevents ignition coil cracking structure, including ignition coil housing, be provided with in ignition coil housing epoxy resin, low pressure winding,
Core assembly and high pressure winding, core assembly includes the big iron core being located in low pressure winding and is respectively arranged on the little of high pressure winding both sides
Iron core, little iron core outer layer is provided with silicone rubber sleeve.
Furthermore, described silicone rubber sleeve uses tetragonal structure design, the outer formable layer of silicone rubber sleeve be provided with some projections with
Some grooves, silicone rubber sleeve uses injection molding manner to be located at little iron core outer layer.
Furthermore, described low pressure is in being mounted on high voltage winding group, and epoxy resin encapsulated is in ignition coil housing, and bag
It is overlying on high pressure winding and silicone rubber sleeve outer layer.
The utility model beneficial effect:
The utility model uses such structure to arrange, and by being provided with silicone rubber sleeve at little iron core outer layer, epoxy resin is coated on silicon rubber again
Gum cover outer layer, owing to silicon rubber material can effectively absorb internal stress, effectively reduces the cracking of product, extends product service life.
Brief description
Fig. 1 is the utility model ignition coil overall structure figure；
Fig. 2 is silicone rubber sleeve structure chart.
1st, ignition coil housing；2nd, silicone rubber sleeve；3rd, epoxy resin；4th, low pressure winding；5th, little iron core；6th, high pressure winding；20、
Projection；21st, groove；50th, big iron core (50).
Detailed description of the invention
With embodiment, the technical solution of the utility model is illustrated below in conjunction with the accompanying drawings.
As it is shown in figure 1, one described in the utility model prevents ignition coil cracking structure, including ignition coil housing 1, point
Being provided with epoxy resin the 3rd, low pressure winding the 4th, core assembly and high pressure winding 6 in fire coil housing 1, core assembly includes being located at low
Big iron core 50 in pressure winding 4 and the little iron core 5 being respectively arranged on high pressure winding 6 both sides, little iron core 5 outer layer is provided with silicone rubber sleeve
2.The above constitutes the utility model basic structure.
The utility model uses such structure to arrange, by being provided with silicone rubber sleeve 2, epoxy resin 3 at little iron core 5 outer layer
It is coated on silicone rubber sleeve 2 outer layer again, owing to silicon rubber material can effectively absorb internal stress, effectively prevents the cracking of product, extend
Product service life.
More specifically, as in figure 2 it is shown, described silicone rubber sleeve 2 uses tetragonal structure to design, silicone rubber sleeve 2 outer layer becomes
Type is provided with some projections 20 and some grooves 21, and silicone rubber sleeve 2 uses injection molding manner to be located at little iron core 5 outer layer.Use such
Structure is arranged, when epoxy resin 3 is overlying on silicone rubber sleeve 2 outer layer, firmer with some grooves 21 by some projections 20.
More specifically, described low pressure winding 4 is located in high pressure winding 6, and epoxy resin 3 embedding is in ignition coil housing 1
In, and it is coated on high pressure winding 6 and silicone rubber sleeve 2 outer layer.
Being more than the utility model preferably embodiment, the utility model those skilled in the art can also be to above-mentioned enforcement
Mode changes and changes.Therefore, the utility model is not limited to above-mentioned detailed description of the invention, every art technology
Any conspicuously improved, replacement or modification that personnel are made on the basis of the utility model belong to guarantor of the present utility model
Protect scope.
Claims (3)
1. preventing an ignition coil cracking structure, including ignition coil housing (1), described ignition coil housing is provided with epoxy in (1)
Resin (3), low pressure winding (4), core assembly and high pressure winding (6), it is characterised in that: described core assembly includes being located at
Big iron core (50) in low pressure winding (4) and the little iron core (5) being respectively arranged on high pressure winding (6) both sides, described little iron core
(5) outer layer is provided with silicone rubber sleeve (2).
2. one prevents ignition coil cracking structure according to claim 1, it is characterised in that: described silicone rubber sleeve (2) uses four
Square structure designs, and the outer formable layer of described silicone rubber sleeve (2) is provided with some projections (20) and some grooves (21), described silicon
Rubber sleeve (2) uses injection molding manner to be located at little iron core (5) outer layer.
3. one prevents ignition coil cracking structure according to claim 1, it is characterised in that: described low pressure winding (4) is located at height
In pressure winding (6), described epoxy resin (3) embedding is in ignition coil housing (1), and is coated on high pressure winding (6)
With silicone rubber sleeve (2) outer layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291048.7U CN205621593U (en) | 2016-04-08 | 2016-04-08 | Prevent ignition coil fracture structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620291048.7U CN205621593U (en) | 2016-04-08 | 2016-04-08 | Prevent ignition coil fracture structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205621593U true CN205621593U (en) | 2016-10-05 |
Family
ID=57030023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620291048.7U Expired - Fee Related CN205621593U (en) | 2016-04-08 | 2016-04-08 | Prevent ignition coil fracture structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205621593U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
-
2016
- 2016-04-08 CN CN201620291048.7U patent/CN205621593U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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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: 20161005 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |