CN103247937A - Spark plug side electrode and manufacturing method thereof - Google Patents
Spark plug side electrode and manufacturing method thereof Download PDFInfo
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- CN103247937A CN103247937A CN2013101577859A CN201310157785A CN103247937A CN 103247937 A CN103247937 A CN 103247937A CN 2013101577859 A CN2013101577859 A CN 2013101577859A CN 201310157785 A CN201310157785 A CN 201310157785A CN 103247937 A CN103247937 A CN 103247937A
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- side electrode
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Abstract
The invention discloses a spark plug side electrode and a manufacturing method thereof. The spark plug side electrode is connected with the end part of a housing; and from the root to the head, at least one part of the spark plug side electrode is twisted. If the spark plug side electrode is twisted by an angle partially or wholly, the strength and the service life of the spark plug side electrode can be increased; and especially after the spark plug side electrode is twisted by 90 or 270 degrees, the side surface of the spark plug side electrode in the material thickness direction, which is originally connected to the housing,is changed into an ignition surface facing a central electrode, but a wider original ignition surface is changed into a side surface. Thus, under the condition of not changing the wall thickness of the original housing, the wider surface of the spark plug side electrode is changed into a curve plane by twisting the spark plug side electrode, so that not only the strength of the spark plug side electrode in the radial direction of the curve plane is increased, but also the width of the ignition surface facing a flame nucleus is reduced. By twisting the spark plug side electrode, while the strength of the spark plug side electrode is increased, the obstacles that preventing the flame nucleus from expanding into a combustor are reduced.
Description
Technical field
The present invention relates to a kind of spark plug components and preparation method thereof, relate to a kind of spark-plug side electrode and preparation method thereof specifically; Described lateral electrode has higher lateral electrode intensity and good ignition performance, and is easy to realize producing in enormous quantities, accurately makes spark-plug side electrode.
Background technology
Spark-plug side electrode is one of of paramount importance part of spark plug.Because lateral electrode is in the high-temperature area that works in the combustion chamber in, so it is good high temperature resistant to require spark-plug side electrode to possess, the overfiring-proof performance.Present spark-plug side electrode generally all is that nickel alloy material is made, the lateral electrode of existing high-grade spark plug then is to adopt precious metal alloys as the lateral electrode firing tip, fine rule or thin slice that noble metal is made are welded on the lateral electrode, do the ignition performance that can improve lateral electrode like this, increase the service life.Because the wall thickness of housing is thinner, the thickness that is welded to the nickel alloy lateral electrode on it also is restricted, and the intensity of lateral electrode just is difficult for improving.Because the housing end face is circular-arc, the width that increases lateral electrode also is restricted.Wideer lateral electrode, the igniting face area increase in the face of central electrode also can influence ignition performance.Dwindling the electrode ignition area, is one of means that improve ignition performance.Will make electrode accelerate to consume but dwindle the electrode ignition area, the life-span significantly reduces.How can strengthen the intensity of lateral electrode, be unlikely to influence ignition performance again, become to improve a key point of spark plug performance.
Still only find that by patent retrieval the patent formerly that the present patent application people applies for is relevant with the technology of the present invention, the application number of this patent is CN201120125596.X, the utility model name is called " a kind of noble metal spark plug lateral electrode ", though this patent discloses a kind of noble metal spark plug lateral electrode, comprises spark plug metal shell, ceramics insulator, central electrode and lateral electrode; Be welded with precious metal in its lateral electrode and central electrode discharging surface by the laser welding mode, and illustrated that the noble metal on the lateral electrode is to be welded on the lateral electrode end face, behind the lateral electrode bending forming, the lateral electrode precious metal is welded on the end face vertical with central electrode noble metal end face after the lateral electrode bending, and the vertically opposite formation reasonable clearance of the precious metal of lateral electrode precious metal and central electrode end face, spark plug electrode structure adopts at pin type structure.
But this patent does not still solve the problem of lateral electrode undercapacity, so still have the easy scaling loss of lateral electrode, the phenomenon of insufficient strength; Necessary further improvement.
Summary of the invention
The objective of the invention is, at above-mentioned spark-plug side electrode insufficient strength, the deficiency of scaling loss provides a kind of and can improve spark-plug side electrode of ignition performance and preparation method thereof when improving lateral electrode intensity easily.
The objective of the invention is to realize by following implementer's case, a kind of spark-plug side electrode, lateral electrode and shell end link together; It is characterized in that described lateral electrode has at least a part to reverse from the root to the termination.
Further, described lateral electrode be from root near the termination, integral body is reversed except 0.5-5mm part, position, lateral electrode termination.
Further, described lateral electrode is in the lateral electrode termination, near 0.5-5mm place, position, lateral electrode termination local torsion.
Further, described lateral electrode windup-degree is the multiple (90 degree or 180 degree or 270 degree or 360 degree etc.) of 90 degree; With a certain plane that guarantees lateral electrode towards central electrode.
Further, described lateral electrode windup-degree is 90 degree or 270 degree, is the narrower plane of lateral electrode to guarantee lateral electrode towards the face of central electrode.
Further, described lateral electrode is welded with precious metal alloys at the position, termination towards central electrode.
A kind of method that realizes that above-mentioned lateral electrode is reversed after housing connects lateral electrode, is reversed in the central electrode bending in lateral electrode.
The another kind of method that realizes that above-mentioned lateral electrode is reversed after housing connects lateral electrode,, is reversed lateral electrode earlier before the central electrode bending in lateral electrode, carries out bending again.
The another kind of method that realizes that above-mentioned lateral electrode is reversed is reversed lateral electrode earlier as required, lateral electrode is welded on the housing again, carries out bending at last.
The invention has the advantages that, a part or the integral body of lateral electrode are reversed an angle, can improve the intensity of spark-plug side electrode like this, increase the useful life of lateral electrode; Especially lateral electrode is turned round turn 90 degrees or 270 degree after, make the side of the thickness direction that lateral electrode originally was connected with housing become the igniting face of facing central electrode, and wideer former igniting face has become the side.So just can be under the situation that does not change the procapsid wall thickness, make the wideer face of lateral electrode become the plane of bending of lateral electrode by reversing lateral electrode, this has not only increased lateral electrode in plane of bending intensity radially, and has reduced towards the igniting face width degree of flame nuclear.By reversing lateral electrode, make and when increasing spark-plug side electrode intensity, reduced the obstruction of flame nuclear to the combustion chamber internal extended again like this.
Description of drawings
Fig. 1 is one embodiment of the present of invention structural representation;
Fig. 2 is one embodiment of the present of invention texture edge schematic diagram;
Fig. 3 is an alternative embodiment of the invention structural representation;
Fig. 4 is an alternative embodiment of the invention texture edge schematic diagram.
Embodiment
The present invention will be further described below in conjunction with drawings and Examples.
Accompanying drawing has provided several embodiments of the present invention, the present invention relates to a kind of spark-plug side electrode as can be seen by accompanying drawing, and lateral electrode and shell end link together; It is characterized in that described lateral electrode has at least a part to reverse from the root to the termination.
Further, described lateral electrode be from root near the termination, integral body is reversed except 0.5-5mm part, position, lateral electrode termination.
Further, described lateral electrode is in the lateral electrode termination, near 0.5-5mm place, position, lateral electrode termination local torsion.
Further, described lateral electrode windup-degree is the multiple (90 degree or 180 degree or 270 degree or 360 degree etc.) of 90 degree; With a certain plane that guarantees lateral electrode towards central electrode.
Further, described lateral electrode windup-degree is 90 degree or 270 degree, is the narrower plane of lateral electrode to guarantee lateral electrode towards the face of central electrode.
Further, described lateral electrode is welded with precious metal alloys at the position, termination towards central electrode.
It is multiple to realize that method that above-mentioned lateral electrode is made has, and a kind of method that realizes that above-mentioned lateral electrode is reversed is after housing connects lateral electrode, reverses in the central electrode bending in lateral electrode.
The another kind of method that realizes that above-mentioned lateral electrode is reversed is after housing connects lateral electrode,, earlier lateral electrode is reversed before the central electrode bending in lateral electrode, carries out bending again.
The another kind of method that realizes that above-mentioned lateral electrode is reversed is earlier lateral electrode to be reversed as required, lateral electrode is welded on the housing again, carries out bending at last.A kind of spark-plug side electrode, lateral electrode and shell end link together; It is characterized in that described lateral electrode has at least a part to reverse from the root to the termination.
Embodiment one
Shown in attached Fig. 1 and 2, a kind of spark-plug side electrode, comprise housing 1, be connected with lateral electrode 2 in the end of housing 1, the end of lateral electrode 2 and housing 1 is characterized in that by being welded together, described lateral electrode 2 is whole reversing except 0.5-5mm part, position, lateral electrode termination, windup-degree is 90 degree or 270 degree, guaranteeing termination 3 in lateral electrode 2 after the central electrode bending, is the narrower side of lateral electrode 4 towards the face of central electrode.
The method that above-mentioned lateral electrode is reversed is: after housing 1 weld side electrode 2, reversing in lateral electrode 2 bendings, guaranteeing head 3 in lateral electrode 2 after the central electrode bending, is the narrower side of lateral electrode 4 towards the face of central electrode.
Concrete making step is:
1, makes the lateral electrode material: lateral electrode is made rectangle strip material;
2, weld side electrode: lateral electrode 2 is welded on the spark-plug body 1, and cuts off according to Len req;
3, curved side electrode: lateral electrode 2 is placed on the enterprising line bend of flexion torsion equipment, and in bending integral body turn round turn 90 degrees or 270 the degree.
Embodiment two
Shown in accompanying drawing 3 and 4, a kind of spark-plug side electrode, comprise housing 201, be welded with lateral electrode 202 in the end of housing 201, lateral electrode 202 links together with the end of housing 201, it is characterized in that described lateral electrode 202 is reversed in the lateral electrode end near 0.5-5mm place, 203 position, lateral electrode termination local torsion, guaranteeing at lateral electrode head 203 after the central electrode bending, be the narrower side of lateral electrode 205 towards the face of central electrode.
Described lateral electrode 202 windup-degrees are 90 degree or 270 degree.
Described lateral electrode head 203 on the side 205 of central electrode, be welded with precious metal alloys sheet 204.
The method that above-mentioned lateral electrode is reversed is: weld side electrode 202 on housing 201, before the central electrode bending, before or after lateral electrode 202 was reversed, 205 welded precious metal alloys sheets 204 in the side in lateral electrode 202.Again the lateral electrode 202 after reversing is carried out bending afterwards.Lateral electrode 202 is the side 205 of the narrower welding precious metal alloys sheet 204 of lateral electrode head 203 towards the face of central electrode after the central electrode bending.
Concrete making step is:
1, lateral electrode 202 is the strip materials with rectangular cross section;
2, lateral electrode 202 is welded on the spark-plug body 201, presses Len req and cut off;
3, before or after lateral electrode 202 is reversed, precious metal alloys sheet 204 is welded to side 205;
4, lateral electrode 202 is placed on the equipment of reversing turning round near part, 203 0.5-5mm place, termination of lateral electrode turn 90 degrees or 270 degree;
5, lateral electrode 202 is placed on the enterprising line bend moulding of bending apparatus.
Claims (10)
1. spark-plug side electrode, lateral electrode and shell end link together; It is characterized in that described lateral electrode has at least a part to reverse from the root to the termination.
2. spark-plug side electrode as claimed in claim 1 is characterized in that, described lateral electrode be from root near the termination, integral body is reversed except 0.5-5mm part, position, lateral electrode termination.
3. spark-plug side electrode as claimed in claim 1 is characterized in that, described lateral electrode is in lateral electrode termination position portion, near 0.5-5mm place, lateral electrode termination local torsion.
4. spark-plug side electrode as claimed in claim 1 is characterized in that, described lateral electrode windup-degree is the multiples of 90 degree, with a certain plane that guarantees lateral electrode towards central electrode.
5. spark-plug side electrode as claimed in claim 4 is characterized in that, described lateral electrode windup-degree is 90 degree or 270 degree, is the narrower plane of lateral electrode to guarantee lateral electrode towards the face of central electrode.
6. spark-plug side electrode as claimed in claim 1 is characterized in that, described lateral electrode is welded with precious metal alloys at the position, termination towards central electrode.
7. a method that realizes that above-mentioned lateral electrode is reversed is characterized in that, after housing connects lateral electrode, reverses in the central electrode bending in lateral electrode.
8. a method that realizes that above-mentioned lateral electrode is reversed is characterized in that, after housing connects lateral electrode,, earlier lateral electrode is reversed before the central electrode bending in lateral electrode, carries out bending again.
9. a method that realizes that above-mentioned lateral electrode is reversed is characterized in that, earlier lateral electrode is reversed as required, lateral electrode is connected on the housing again, carries out bending at last.
10. the method for reversing as claim 7,8 or 9 described lateral electrodes is characterized in that, described lateral electrode windup-degree is the multiple of 90 degree, to guarantee in lateral electrode that after the central electrode bending towards central electrode is a certain plane of lateral electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101577859A CN103247937A (en) | 2013-05-02 | 2013-05-02 | Spark plug side electrode and manufacturing method thereof |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013101577859A CN103247937A (en) | 2013-05-02 | 2013-05-02 | Spark plug side electrode and manufacturing method thereof |
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| Publication Number | Publication Date |
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| CN103247937A true CN103247937A (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013101577859A Pending CN103247937A (en) | 2013-05-02 | 2013-05-02 | Spark plug side electrode and manufacturing method thereof |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292161A (en) * | 1998-03-02 | 2001-04-18 | 派若泰克企业集团 | Spark plug providing improved operating characteristics |
| JP2007250344A (en) * | 2006-03-16 | 2007-09-27 | Ngk Spark Plug Co Ltd | Spark plug for internal combustion engine |
| US20080100193A1 (en) * | 2006-10-30 | 2008-05-01 | Denso Corporation | Spark plug having improved configuration of ground electrode for ensuring high ignition capability |
| CN102165655A (en) * | 2008-09-30 | 2011-08-24 | 日本特殊陶业株式会社 | Spark plug for internal combustion engine |
| JP2011187437A (en) * | 2010-02-09 | 2011-09-22 | Denso Corp | Spark plug for internal combustion engine |
-
2013
- 2013-05-02 CN CN2013101577859A patent/CN103247937A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1292161A (en) * | 1998-03-02 | 2001-04-18 | 派若泰克企业集团 | Spark plug providing improved operating characteristics |
| JP2007250344A (en) * | 2006-03-16 | 2007-09-27 | Ngk Spark Plug Co Ltd | Spark plug for internal combustion engine |
| US20080100193A1 (en) * | 2006-10-30 | 2008-05-01 | Denso Corporation | Spark plug having improved configuration of ground electrode for ensuring high ignition capability |
| CN102165655A (en) * | 2008-09-30 | 2011-08-24 | 日本特殊陶业株式会社 | Spark plug for internal combustion engine |
| JP2011187437A (en) * | 2010-02-09 | 2011-09-22 | Denso Corp | Spark plug for internal combustion engine |
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Application publication date: 20130814 |