CN100480506C - Ignition device of engine - Google Patents
Ignition device of engine Download PDFInfo
- Publication number
- CN100480506C CN100480506C CNB2005100541304A CN200510054130A CN100480506C CN 100480506 C CN100480506 C CN 100480506C CN B2005100541304 A CNB2005100541304 A CN B2005100541304A CN 200510054130 A CN200510054130 A CN 200510054130A CN 100480506 C CN100480506 C CN 100480506C
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- CN
- China
- Prior art keywords
- ignition mechanism
- biasing element
- push element
- push
- magnetic core
- 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
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02P—IGNITION, OTHER THAN COMPRESSION IGNITION, FOR INTERNAL-COMBUSTION ENGINES; TESTING OF IGNITION TIMING IN COMPRESSION-IGNITION ENGINES
- F02P3/00—Other installations
- F02P3/02—Other installations having inductive energy storage, e.g. arrangements of induction coils
Abstract
An ignition device for an engine comprises a cylindrical coil part (20), an annular biasing element (40) and an annular push pressure element (35). The annular biasing element (40) with elasticity along diameter direction is connected with the external surface of one den of the coil part (20) on the side surface opposite to an engine spark plug. The push pressure element (35, 70) is connected with the external surface of the biasing element (40) and biases outwards radially to contact the inner surface of an inlet hole (12) formed on a spark plug hole (10) in a cylinder head. Accordingly, the ignition device (15) can be satisfactorily limited in such a way that the ignition device can not leave the plug hole (10) only by vibration.
Description
Technical field
The present invention relates to a kind of ignition mechanism, it is restricted to can be owing to vibration waits the consent that leaves motor.
Background technique
Usually, the ignition mechanism of motor is provided with a cylindrical coil part with a primary air and a secondary coil, an automatically controlled part that is positioned on the coiler part, and a high-pressure tower part that is positioned under the coiler part.High-pressure tower part and coiler part are inserted into the patchhole part of consent, and consent is formed at the cylinder head place of motor.The control section that is used for the control coil part is contained in the inlet hole part of consent.When driving motor, cylinder head will have the vibration of a little magnitude, so ignition mechanism may be left consent.
Leave consent in order to limit ignition mechanism, for example, control section can be provided with a flange that radially extends, and it is fixed to the end face of cylinder head.Alternatively, control section can be provided with connected member, and it engages from control section extension downwards and with cylinder head.
In JP-9-126112A, shown in Fig. 7 and 8, ignition mechanism 150 comprises a coil case 151 with built-in high-pressure generator, and the connecting pin 154 with built-in linkage unit, and it is electrically connected to spark plug 160.Connecting pin 154 is perpendicular to the bottom surface of coil case 151, and between a pair of connected member 152 that extends downwards from the bottom surface of coil case 151.
Each connected member 152 is provided with a hook-shaped engagement elements 153 in its lower end.Joint element 153 is from connected member 152 side-prominent to connecting pin 154.
With particular reference to Fig. 8, case lid 155 is provided with an annular mounting portion 157, and it is from case lid 155 protrusions and have an axially extended mounting hole 156.The internal diameter of mounting portion 157 (being the diameter of mounting hole 156) equals this to the distance between the connected member 152.One comprises that the joint release portion 159 of the recess that two radially outwards stretch out is formed at the inner rim 158 (internal surface) of mounting portion 157, thus hook-type connected member 153 can by pass engage release portion 159 and from the jointing state of mounting portion 157 discharge.
When ignition mechanism 150 was connected to case lid 155, connecting pin 154 was inserted mounting hole 156, and the position of joint element 153 (state) on the circumferencial direction of mounting portion 157 with the position consistency that engages release portion 159.After clockwise or counter clockwise direction turning ignition device 150, joint element 153 engages with the inner rim 158 of mounting portion 157.Thereby ignition mechanism 150 is fixed to case lid 155.
At this moment, coil case 151 is not provided with a flange so that have a small-diameter sized.Yet protrude from case lid 155 mounting portion 157, thereby increased the axial dimension of the assembly of ignition mechanism 150 and casing 155.And when joint element 153 was inserted into mounting hole 156, joint element 153 must be consistent each other on the circumferencial direction of mounting portion 157 with the position that engages release portion 159.Therefore, connection will become very complicated.In addition, connected member 152 is thin and grow, thereby will become easily deformable because of little rigidity or break.
Summary of the invention
Consider the problems referred to above, a target of the present invention provides a kind of ignition mechanism with limiting unit, and this limiting unit restriction ignition mechanism is left from the consent of motor.Limiting unit has big rigidity, and is easy to connect, and can not increase the axial dimension of ignition mechanism.
According to the present invention, the ignition mechanism of motor is provided with coiler part, cylindrical biasing element and cylindrical push element.Coiler part has primary air and Secondary coil.The termination that push element is opposite with coiler part and engine spark plug merges and places the inlet hole part of the consent that is formed at the engine cylinder cap place.Biasing element has elasticity and engages with push element so that touch the internal surface of inlet hole part in its directly make progress outside bias voltage push element so that push element on diameter.
So push element and biasing element have been constructed one and have been used to limit the limiting unit that ignition mechanism is left consent.Limiting unit can be connected to ignition mechanism by the engaged at end with coiler part easily.Because limiting unit is arranged between the inlet hole part end opposite with spark plug with coiler part, the height of ignition mechanism does not increase.In addition, limiting unit is made of cylindrical biasing element and cylindrical scribble element, thereby has big rigidity.
Preferably, coiler part also comprises a peripheral magnetic core with main body, and it combines with biasing element at the main body end place opposite with spark plug.Just, biasing element has constituted the part of peripheral magnetic core, thereby has simplified the assembling of ignition mechanism.
More preferably, push element is provided with the blind hole that extends axially of the neutral position that is positioned at the push element thickness direction.Blind hole has an opening that is positioned at the push element bottom.Biasing element is inserted (structure) in blind hole.So ignition mechanism can be easy to assembling.
Description of drawings
From following detailed description with reference to the accompanying drawings, above-mentioned and other target of the present invention, characteristics and advantage will be more obvious.In the accompanying drawings:
Fig. 1 is the longitudinal cross-section view according to the critical piece of the ignition mechanism of first embodiment of the invention;
Fig. 2 is the front view according to the push element of first embodiment's ignition mechanism;
Fig. 3 is the schematic representation according to the biasing element of first embodiment's ignition mechanism;
Fig. 4 A is a partial schematic diagram with peripheral magnetic core of bias voltage part according to second embodiment of the invention, and Fig. 4 B is the plan view of the peripheral magnetic core of Fig. 4 A;
Fig. 5 is that the longitudinal cross-section according to the push element of third embodiment of the invention and biasing element is to push away;
Fig. 6 A is the schematic representation according to the 3rd embodiment's biasing element, and Fig. 6 B be biasing element shown in Fig. 6 A a distortion front view;
Fig. 7 is the part section front view according to the ignition mechanism of prior art;
Fig. 8 is the partial schematic diagram of ignition mechanism shown in Figure 7.
Embodiment
Below with reference to accompanying drawing preferred embodiment is described.
[first embodiment]
Below with reference to Fig. 1-3 first embodiment of the present invention is described.
With reference to figure 1, the ignition mechanism 15 of motor (not shown) is provided with a coiler part 20, an automatically controlled part 30 that is positioned at above the coiler part 20, a high-pressure tower part (not shown) that is positioned at below the coiler part 20, and a limiting unit (push element 35 and biasing element 40) that is clipped between coiler part 20 and the consent 10.Coiler part 20 is arranged in the axial centre of ignition mechanism 15 (for example being rod shape).
The center magnetic core of being made by magnetic material 21 is arranged in the center of coiler part 20.Secondary coil 22 comprises cylindrical secondary roll 22a and secondary coiling group 22b.Secondary roll 22a and secondary coiling group 22b electrical insulation and secondary coiling group 22b twine thereon.Similarly, primary air 23 comprises cylindrical elementary roll 23a and elementary coiling group 23b.Elementary roll 23a and elementary coiling group 23b electrical insulation and elementary coiling group 23b twine thereon.
Also with reference to figure 2, the push element of making by elastic material (for example rubber) 35 cylindrical on the whole (annular).Push element 35 comprises that a column part 36 and one are positioned at the flange portion 37 that column part 36 1 ends (for example upper end) are located.Compare with column part 36, flange portion 37 length are than weak point and have bigger external diameter.
The external diameter of column part 36 is substantially equal to the internal diameter of inlet hole part 12.The internal diameter of column part 36 is substantially equal to or is a bit larger tham the external diameter of coiler part 20 upper ends.The internal surface place that shallow annular depression 38 is formed at cylindrical part 36 is used for the installation of biasing element 40.A plurality of ring ribs 39 with predetermined axial pitch are arranged on the outer surface of column part 36 equably.Column part 36 is arranged around the upper end of elementary roll 23a, and biasing element 40 is clipped between them.Flange portion 37 tightly contacts with the outer surface of peripheral magnetic core 24.
With reference to figure 3, the biasing element of being made by spring material 40 is thin walled cylindrical (annular) on the whole again.Biasing element 40 is contained in the depression 38 of push element 35, and all engages with the outer surface of primary air 23 upper end parts and the internal surface of column part 36.Biasing element 40 with respect to its axial centre symmetry comprises deformable segment 41 (bias voltage part), upper end 45 and a lower end 47 that is positioned at axial centre.Top and bottom 45,47 are shorter than deformable segment 41.
Rubber-like deformable segment 41 is provided with a plurality of protrusions 42 and a plurality of axially extended, slit 43 between adjacent protrusion 42 on the diameter.Protrude that 42 outer surfaces from deformable segment 41 protrude so that curved under nature, and the inside resiliently deformable that when in ignition mechanism 15, assembling, will make progress in the footpath of deformable segment 41.
The assembling of ignition mechanism 15 is below described.
At first, coiler part 20 is inserted overbias element 40 from the lower end of coiler part 20, so that the biased element 40 of outer surface of primary air 23 (coiler part 20) upper end surrounds (joint).After this, the coiler part 20 that engages with biasing element 40 was inserted push element 35 from the lower end of coiler part 20, so that push element 35 engages with the outer surface of biasing element 40.
Alternatively, biasing element 40 can also be installed in the depression 38 of push element 35 in advance.Subsequently, coiler part 20 was inserted push element 35, so that the outer surface of primary air 23 upper ends engages with biasing element 40.
More alternatively, coiler part 20 can also at first be inserted push element 35, so that the upper end of primary air 23 (coiler part 20) is urged element 35 and surrounds.Then, biasing element 40 is inserted into the depression 38 of push element 35, between the upper end that is clipped in column part 36 and primary air 23.
Thereby push element 35 engages with the outer surface of biasing element 40, so that the protrusion 42 of the deformable segment 41 inside resiliently deformable that makes progress in the footpath of deformable segment 41.Because biasing element 40 is maintained in the depression 38, the column part 36 of push element 35 will be owing to the negative function of the resiliently deformable of elastic part 41 and at its outside bias voltage that directly makes progress.
Subsequently, the coiler part 20 that has been connected on it of biasing element 35 and push element 40 is inserted into consent 10.Thereby the upper end of the coiler part 20 that biased element 35 and push element 40 are surrounded is contained in the inlet hole part 12 of consent 10.Part under the upper end part of coiler part 20 is inserted (maintenance) in the patchhole part 11 of consent 10.At this moment, the ring rib 39 of column part 36 outer surface, thereby is tightly contacted with the internal surface of inlet hole part 12 at its outside bias voltage that directly makes progress by deformable segment 41.
According to first embodiment, biasing element 40 engages with the outer surface of primary air 23 upper ends, and push element 35 engages with the outer surface of biasing element 40.Thereby push element 35 and biasing element 40 can be connected to coiler part 20 (elementary roll 23a) easily, and can not increase the height (length) of coiler part 20.
At this moment, the biasing element 40 outside bias voltage push element 35 that makes progress in the footpath of biasing element 40.Just, biasing element 40 promotes push element 35 towards the internal surface of inlet hole part 12.Because ring rib 39 is formed at the outer surface of push element 35, push element 35 can have and tightly the contacting of inlet hole part 12 internal surfaces easily.
And protrusion 42 and slit 43 are formed at the deformable segment 41 of biasing element 40, so that biasing element 40 has very big energy of deformation and very big biasing force.So, although ignition mechanism 15 can not left consent 10 by the gratifying vibration grade that is restricted to yet.
In addition, the biasing element 40 of thin-walled shape has the big rigidity that prevents to be out of shape and break.And push element 35 has the flange portion 37 that tightly contacts with the outer surface of peripheral magnetic core 24, with the slit between activation seal perimeter magnetic core 24 and the primary air 23.
[second embodiment]
Below with reference to Fig. 4 A and 4B second embodiment described.In this embodiment, the peripheral magnetic core 24 among Fig. 1 replaces with peripheral magnetic core 50.Push element 35 is by a part of institute bias voltage of peripheral magnetic core 50, and the outer surface of peripheral magnetic core 50 and primary air 23 joins and merges the outermost that is positioned at coiler part 20.
Periphery magnetic core 50 is made by spring material and is the thin-walled shape.A cross slits is arranged as the wall that runs through peripheral magnetic core 50.Cross slits comprises an axially extended slit 51 in whole peripheral magnetic core 50, and a slit 52 that extends circumferentially in the part of peripheral magnetic core 50.Slit 52 intersects with slit 51 at the upper end part and the boundary between the intermediate portion of peripheral magnetic core 50.Thereby peripheral magnetic core 50 is by the bias voltage part 54 (deformable segment) that is positioned at above the slit 51, and be positioned at below the slit 52 and peripheral magnetic core 50 axially on constitute than bias voltage part 54 long main bodys 53.Main body 53 and bias voltage part 54 all have C shape cross section.In nature, the external diameter of bias voltage part 54 is greater than the external diameter of main body 53, shown in Fig. 4 B.
In the ignition mechanism 15 according to second embodiment, push element 35 engages with the outer surface of the bias voltage part 54 of peripheral magnetic core 50, so that bias voltage part 54 is in its inside resiliently deformable that directly makes progress.The coiler part 20 that push element 35 has been connected on it is inserted in the consent 10.Thereby the upper end that is urged the coiler part 20 that element 35 surrounded is contained in inlet hole part 12.Coiler part 20 is held (inserting) in patchhole part 11 with respect to the bottom of push element 35.
At this moment, because the negative function of the resiliently deformable of bias voltage part 54, push element 35 is at its outside bias voltage that directly makes progress, thereby tightly contacts the internal surface of inlet hole part 12.
According to this embodiment, the bias voltage part 54 bias voltage push element 35 of peripheral magnetic core 50, and need not to use an independent biasing element.Therefore, except having the identical effect with above-mentioned first embodiment, second embodiment's ignition mechanism 15 can be constructed to have less components, because simplified assembling.
[the 3rd embodiment]
Below with reference to accompanying drawing 5,6A and 6B the 3rd embodiment described.In this embodiment, biasing element 80 is configured in the push element 70, and the outer surface with elementary roll 23a does not contact.
With reference to figure 5, push element 70 comprises a column part 72 and a flange portion 75 that is formed at the diameter ground extension of column part 72 upper ends.A plurality of ring ribs 73 with predetermined pitch are arranged on the outer surface of column part 72 equably.An axially extended blind hole 76 (patchhole) is formed at the centre of the thickness direction of column part 72, so that have a circular cross section concentric with column part 72.The opening of blind hole 76 is positioned at the bottom of column part 72.
As shown in Figure 6A, biasing element 80 comprises two annular portions 82 and 85 with identical C shape cross section.Annular portion 82 and 85 is respectively equipped with slit 83 and 86, and they extend axially on full annular part 82 and 85 respectively to form a pair of opposite end 84 and a pair of opposite end 87.The two pairs of opposite ends 84 and 87 elastically deformable that makes progress in the footpath of annular portion 82 and 85 respectively.
According to the 3rd embodiment, in the assembling of ignition mechanism 15, annular portion 82 and 85 will be inserted in the sealing stomidium 76 of push element 70 in advance.Particularly, annular portion 82 and 85 be arranged as annular portion 82 or 85 axially on overlap each other, and the position of slit 83 and 86 is staggered on the circumferencial direction of annular portion 82 and 85.Then, annular portion 82 and 85 is inserted (structure) in sealing stomidium 76, with the inside resiliently deformable that directly makes progress at it.
After this, the push element 70 that wherein is configured with annular portion 82 and 85 engages with the outer surface of coiler part 20 upper ends.Then, coiler part 20 is inserted into consent 10, so that the upper end that is urged the included coiler part 20 of element 70 is contained in the inlet hole part 12.Coiler part 20 is held (inserting) in patchhole part 11 with respect to the bottom of push element 70.
At this moment, the column part of push element 70 72 is because the return force of annular portion 82 and 85 and outside bias voltage diametrically, and annular portion 82 and 85 is by resiliently deformable and tend to be back to their original state.
Except the effect identical with first embodiment, the ignition mechanism 15 described in the 3rd embodiment is easy to assembling, because annular portion 82 and 85 is configured in the push element 70 in advance.
As the 3rd embodiment's modification, available helical spring 100 replaces annular portion 82 and 85, with reference to figure 6B.The helical spring 100 that is configured to a plurality of spirals has elasticity on diameter.Helical spring 100 is inserted (structure) in blind hole 76, so that in its inside resiliently deformable that directly makes progress.Thereby column part 72 is owing to helical spring 100 and at its outside bias voltage that directly makes progress.
[other embodiment]
There is not the push element 35 of flange portion 37 can be used for the ignition mechanism 15 described in first embodiment yet.
An inverted T-shaped slit also can be formed at peripheral magnetic core 50 places, replaces the cross slits among above-mentioned second embodiment.The inverted T-shaped slit comprises an axial slits that is arranged in peripheral magnetic core 50 upper ends, and a circumference slit that communicates with axial slits at the place, axial bottom of axial slits.At this moment, peripheral magnetic core 50 is constructed to have a main body and the bias voltage part with C shape cross section with circular cross section.
Claims (17)
1. the ignition mechanism of a motor (15), this ignition mechanism (15) comprising: have the coiler part (20) of primary air (23) and secondary coil (22), it is characterized in that:
Columniform push element (35,70), the termination opposite with engine spark plug of this push element (35) and coiler part (20) merges and places the inlet hole part (12) of the consent (10) that is formed at the engine cylinder cap place; With
Columniform biasing element (40,54,80), this biasing element (40,54,80) on diameter, has elasticity and engage so that in the described push element (35 of its outside bias voltage that directly makes progress with push element (35,70), 70) thus push element (35,70) touch the internal surface of inlet hole part (12).
2. according to the ignition mechanism (15) of claim 1, wherein biasing element (40) engages with the outer surface of the end opposite with spark plug of primary air (23).
3. according to the ignition mechanism (15) of claim 1, wherein:
Push element (35,70) has a plurality of ring ribs (39,73), its be arranged on the outer surface of push element (35,70) and push element (35,70) axially on be spaced apart from each other; With
Push element (35,70) has elasticity on diameter.
4. according to the ignition mechanism (15) of claim 2, wherein
Biasing element (40) comprises the deformable segment of being made by spring material (41), this deformable segment (41) under nature, upwards outwards protrude in the footpath of biasing element (40) and with push element (35) inside diametrically resiliently deformable when engaging.
5. according to the ignition mechanism (15) of claim 4, wherein
Deformable segment (41) has a plurality of axially extended slits (43), and it is spaced apart from each other on the circumferencial direction of deformable segment (41).
6. according to the ignition mechanism (15) of claim 1, wherein
Coiler part (20) also comprises a peripheral magnetic core (50) with main body (53), and it combines with biasing element (54) at main body (53) the end place opposite with spark plug.
7. according to the ignition mechanism (15) of claim 6, wherein:
Biasing element (54) has C shape cross section; With
Periphery magnetic core (50) is provided with circumference slit (52), and it extends between biasing element (54) and main body (53) circumferentially.
8. according to the ignition mechanism (15) of claim 7, wherein biasing element (54) has under nature than the big external diameter of main body (53), and with push element (35) inside resiliently deformable diametrically when engaging.
9. according to the ignition mechanism (15) of claim 1, wherein biasing element (80) is built in the push element (70).
10. according to the ignition mechanism (15) of claim 9, wherein biasing element (80) is a helical spring (100) that is inserted in the push element (70).
11. according to the ignition mechanism (15) of claim 9, wherein biasing element (80) has C shape cross section and is inserted in the push element (70).
12. according to ignition mechanism arbitrary in the claim 1-11 (15), wherein:
Push element (35,70) has cylindrical part (36,72) and be arranged in an end place of cylindrical part (36,72), the flange portion (37,75) that extends on diameter; With
Cylindrical part (36,72) engages with biasing element (40,54,80).
13. according to the ignition mechanism (15) of claim 7 or 8, wherein peripheral magnetic core (50) also is provided with axial slits (51), it axially extends in whole peripheral magnetic core (50) and intersects with circumference slit (52).
14. according to the ignition mechanism (15) of claim 7 or 8, wherein:
Periphery magnetic core (50) also is provided with the axial slits (51) that is positioned at its upper end part; With
Circumference slit (52) communicates with the axial bottom of axial slits (51) in axial slits (51).
15. according to the ignition mechanism (15) of claim 9 or 11, wherein biasing element (80) comprises two annular portions (82,85) with identical C shape cross section.
16. according to ignition mechanism arbitrary in the claim 9-11 (15), wherein:
Push element (70) is provided with the axially extended blind hole (76) of the neutral position that is positioned at push element (70) thickness direction, and this blind hole (76) has an opening that is positioned at push element (70) bottom; With
Biasing element (80) is inserted in the described blind hole (76).
17. according to ignition mechanism arbitrary in the claim 1-11 (15), wherein coiler part (20) is cylindrical.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2004065825 | 2004-03-09 | ||
| JP65825/2004 | 2004-03-09 | ||
| JP02816/2005 | 2005-01-07 | ||
| JP2005002816A JP2005294803A (en) | 2004-03-09 | 2005-01-07 | Ignition coil for internal combustion engine |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1667264A CN1667264A (en) | 2005-09-14 |
| CN100480506C true CN100480506C (en) | 2009-04-22 |
Family
ID=35038515
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100541304A Expired - Fee Related CN100480506C (en) | 2004-03-09 | 2005-03-09 | Ignition device of engine |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP2005294803A (en) |
| CN (1) | CN100480506C (en) |
| DE (1) | DE102005010635A1 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007242959A (en) * | 2006-03-09 | 2007-09-20 | Denso Corp | Ignition coil |
-
2005
- 2005-01-07 JP JP2005002816A patent/JP2005294803A/en active Pending
- 2005-03-08 DE DE200510010635 patent/DE102005010635A1/en not_active Withdrawn
- 2005-03-09 CN CNB2005100541304A patent/CN100480506C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| DE102005010635A8 (en) | 2006-03-09 |
| DE102005010635A1 (en) | 2005-09-29 |
| JP2005294803A (en) | 2005-10-20 |
| CN1667264A (en) | 2005-09-14 |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090422 Termination date: 20190309 |
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| CF01 | Termination of patent right due to non-payment of annual fee |