CN203387050U - Side-electrode ignition end of spark plug - Google Patents
Side-electrode ignition end of spark plug Download PDFInfo
- Publication number
- CN203387050U CN203387050U CN201320485614.4U CN201320485614U CN203387050U CN 203387050 U CN203387050 U CN 203387050U CN 201320485614 U CN201320485614 U CN 201320485614U CN 203387050 U CN203387050 U CN 203387050U
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- Prior art keywords
- lateral electrode
- electrode
- firing tip
- described lateral
- contactless ignition
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Abstract
The utility model provides a side-electrode ignition end of a spark plug. The ignition end includes a side-electrode body (1), a side-electrode ignition-end base block (2) and a side-electrode ignition contact (3). One end of the side-electrode body (1) is welded on a metal casing (4) of the spark plug and the other end of the side-electrode body (1) is bent to an axial end face of a central electrode (5) corresponding to the spark plug. The side-electrode ignition-end base block (2) and the side-electrode body (1) are all made of a nickel-based material. The side-electrode ignition contact (3) is made of a precious-metal material. The side-electrode ignition contact (3) is welded on the side-electrode ignition-end base block (2). The side-electrode ignition-end base block (2) is welded on the side-electrode body (1). The side-electrode ignition contact (3) faces the axial end face of the central electrode (5).
Description
Technical field
The utility model relates to the spark plug technology field, refers to especially a kind of lateral electrode firing tip of spark plug.
Background technology
The function of spark plug is that the high-tension electricity of volts up to ten thousand is introduced to combustion chamber, and produces electric spark and light gaseous mixture, coordinates with ignition system and oil supply system engine is done work, and the quality of spark plug is determining the performance of engine to a great extent jointly.The central electrode of spark plug and lateral electrode are inserted in the combustion chamber of cylinder of internal-combustion engine, therefore, concerning the central electrode and lateral electrode of spark plug, the most basic requirement is exactly anti-ablation, galvanic corrosion and chemical corrosion, and possess good heat conductivility, generally adopt nickel-base alloy to be made.
Along with high-power, the high rotating speed gradually of internal combustion engine of motor vehicle, large compression ratio, common employing nickel-base alloy also more and more is difficult to meet the demand of engine as the spark plug of electrode, people's eye starts to have aimed at noble metal (platinum, iridium, yttrium etc.), ignition end by noble metal for electrode, adopt noble metal to form the discharge tip of electrode, utilize the more stable essence of rare metal chemical characteristic, under extremely high-revolving high temperature, high pressure, still can provide punctual, powerful spark.The electrode of noble metal is got angry and held the performance that makes spark plug that the variation of matter has occurred: one, the high resistance to corrosion performance of noble metal electrode ignition end structure enough keeps spark gap to remain unchanged for a long period of time (in the test of stroke 160,000 km, the platinum electrode spark gap only increases 0.05mm), make the ignition voltage value stabilization, engine mildness, revised spark gap without adjusting in the spark plug use procedure; Two, be suitable for cold start, due to point discharge, igniting easily, has improved the performance under the low engine speed operating mode; Three, reduce heat absorption and the flame arrest effect of electrode, strengthen spark energy, tiny electrode makes the space enlargement around gap, has increased the accessibility of gaseous mixture, makes burning more abundant, discharges lower.
Adopt as mentioned above noble metal with the obvious advantage as the electrode ignition end of spark plug, yet it still exists a series of technical problem in the specific implementation, for example: one, existing precious metal spark plug lateral electrode is all directly noble metal to be welded on the body of lateral electrode, and be all the direct-on-line welding, because the pedestal of lateral electrode is all generally to adopt nickel alloy material to make, different with the material of precious metal, also there is immiscible problem while therefore welding, be difficult to firm welding, so the phenomenon of sealing-off easily occurs, this common problem for existing in prior art, two, on the lateral electrode body, the welding precious metal can make the processing technology complexity of spark plug, is unfavorable for suitability for industrialized production, and welds and unsuccessfully may directly cause spark plug really to be scrapped, and has indirectly increased manufacturing cost, has reduced the production efficiency of spark plug.
The utility model content
The purpose of this utility model is to provide a kind of lateral electrode firing tip of spark plug, its technical problem underlying to be solved is: on the spark plug of existing employing noble metal as the lateral electrode contactless ignition, noble metal is welded on to the welding procedure complexity on the lateral electrode body, the welding failure that is only the lateral electrode contactless ignition of noble metal material just may cause whole spark plug to be scrapped, be unfavorable for the streamlined industrial production, cause cost can not to be in any more.
For solving the problems of the technologies described above, the technical solution adopted in the utility model is:
The utility model provides a kind of lateral electrode firing tip of spark plug, and it comprises:
The lateral electrode body, an end of described lateral electrode body is welded on the metal shell of spark plug, and the other end is bent to the axial end of the central electrode of corresponding described spark plug,
Lateral electrode firing tip matrix, described lateral electrode firing tip matrix and described lateral electrode body are nickel-base material,
The lateral electrode contactless ignition, described lateral electrode contactless ignition is the noble metal material, described lateral electrode contactless ignition is welded on described lateral electrode firing tip matrix, described lateral electrode firing tip matrix is welded on described lateral electrode body, and described lateral electrode contactless ignition is over against the axial end of answering described central electrode.
Be preferable over: described lateral electrode firing tip matrix is tapered, the bottom surface of the described lateral electrode firing tip matrix of taper is welded on a side of the axial end of corresponding described central electrode on described lateral electrode body, and described lateral electrode contactless ignition is welded on the top of the described lateral electrode firing tip matrix of taper.
Be preferable over: described lateral electrode contactless ignition is needle-like, and the lateral electrode contactless ignition of described needle-like and the central shaft of described central electrode coaxially arrange, described lateral electrode contactless ignition one end of needle-like is welded on the tapered tip of described lateral electrode firing tip matrix, and the other end of the described lateral electrode contactless ignition of needle-like is over against the axial end of answering described central electrode.
Be preferable over: described lateral electrode contactless ignition is round table-like, and described round table-like lateral electrode contactless ignition and the central shaft of described central electrode coaxially arrange, an end face of round table-like described lateral electrode contactless ignition is welded on the tapered tip of described lateral electrode firing tip matrix, and another end face of round table-like described lateral electrode contactless ignition is over against the axial end of answering described central electrode.
Be preferable over: described lateral electrode firing tip matrix is welded on end face vertical with the axial end of described central electrode on described lateral electrode body, described lateral electrode contactless ignition is welded on described lateral electrode firing tip matrix, and described lateral electrode contactless ignition is over against the axial end of answering described central electrode.
Compared with prior art, the beneficial effects of the utility model are:
One, lateral electrode firing tip of the present utility model realizes that by lateral electrode firing tip matrix the welding transition of lateral electrode body and lateral electrode contactless ignition is adding man-hour, after the lateral electrode contactless ignition of guaranteeing the noble metal material firmly is welded on described lateral electrode firing tip matrix, again described lateral electrode firing tip matrix is welded on the lateral electrode body, because lateral electrode firing tip matrix and lateral electrode body are identical material, therefore welding is easy, and contact is firm.
Two, utilize described lateral electrode firing tip matrix to form the lateral electrode tip, then by the lateral electrode contactless ignition welded on the lateral electrode tip realize and central electrode between the point discharge for pin, improved the ignition performance of spark plug.
The accompanying drawing explanation
Figure l is lateral electrode firing tip perspective view of the present utility model.
Fig. 2 is that some lateral electrodes contact is welded on the perspective view on long bonding jumper.
Fig. 3 is welded on the perspective view on the lateral electrode body for long bonding jumper.
Fig. 4 is the perspective view that the long bonding jumper after cutting coordinates with lateral electrode this subject.
Fig. 5 is the structural representation after offside electrode ignition end group piece carries out milling.
Fig. 6 is another kind of lateral electrode contactless ignition embodiment schematic diagram.
Fig. 7 is the lateral electrode firing tip matrix milling effect figure of the another kind of lateral electrode contactless ignition of welding.
The embodiment schematic diagram that Fig. 8 is another kind of lateral electrode firing tip of the present utility model.
The embodiment schematic diagram that Fig. 9 is another lateral electrode firing tip of the present utility model.
Embodiment
Below with reference to accompanying drawing 1 to 9 and preferred embodiment, the lateral electrode firing tip of a kind of spark plug that the utility model proposes is done more to describe in detail.
As Fig. 1, shown in 8, the utility model provides a kind of lateral electrode firing tip of spark plug, it comprises lateral electrode body 1, lateral electrode firing tip matrix 2 and lateral electrode contactless ignition 3, one end of described lateral electrode body 1 is welded on the metal shell 4 of spark plug, the other end is bent to the axial end of the central electrode 5 of corresponding described spark plug, described lateral electrode firing tip matrix 2 is nickel-base material with described lateral electrode body 1, described lateral electrode contactless ignition 3 is the noble metal material, described lateral electrode contactless ignition 3 is welded on described lateral electrode firing tip matrix 2, described lateral electrode firing tip matrix 2 is welded on described lateral electrode body 1, and described lateral electrode contactless ignition 3 is over against the axial end of answering described central electrode 5.
The utility model in the specific implementation, successively as shown in Figure 2, the long bonding jumper 10 of flat of a desirable nickel-base material identical with lateral electrode body 1 material of spark plug, and weld successively vertically the lateral electrode contactless ignition 3 of several noble metal materials on described long bonding jumper 10, as shown in Figure 3, and the long bonding jumper 10 that will be welded with some described contactless ignitions 3 is welded on lateral electrode body 1, and first lateral electrode contactless ignition 3 that makes to be positioned at any end in axial two ends on described long bonding jumper 10 is positioned at the position of corresponding described central electrode 5 on described lateral electrode body 1, as Fig. 5, shown in 6, the described long bonding jumper 10 of cutting, retain long bonding jumper 10 intercepts that are welded with a lateral electrode contactless ignition 3 on described lateral electrode body 1, long bonding jumper 10 intercepts that retain on described lateral electrode body 1 are as lateral electrode firing tip matrix 2, as Fig. 1, shown in 8, again described lateral electrode body 1 is bent to the axial end of described lateral electrode contactless ignition 3 vertical corresponding described central electrodes 5.
Lateral electrode firing tip of the present utility model is realized the welding transition of lateral electrode body 1 and lateral electrode contactless ignition 3 by lateral electrode firing tip matrix 2, after the lateral electrode contactless ignition 3 of guaranteeing the noble metal material is welded on described lateral electrode firing tip matrix 2 securely, again described lateral electrode firing tip matrix 2 is welded on lateral electrode body 1, because lateral electrode firing tip matrix 2 is identical material with lateral electrode body 1, therefore welding easily, and contact is firm, and can effectively prevent because the not all right spark plug that causes of lateral electrode contactless ignition 3 welding qualities is scrapped.
Preferred embodiment one: as Fig. 1, 5, 7, shown in 8, described lateral electrode firing tip matrix 2 is tapered, the bottom surface of the described lateral electrode firing tip matrix 2 of taper is welded on a side of the axial end of corresponding described central electrode 5 on described lateral electrode body 1, described lateral electrode contactless ignition 3 is welded on the top of the described lateral electrode firing tip matrix 2 of taper, after described lateral electrode firing tip matrix 2 is soldered to described lateral electrode body 1, again described lateral electrode firing tip matrix 2 is carried out to the milling shaping, described lateral electrode firing tip matrix 2 is milled into to taper, and then form lateral electrode firing tip of the present utility model, reduce endotherm area and stop that mist lights the area of diffusion.
Preferred embodiment two: as shown in Fig. 1 to 5, described lateral electrode contactless ignition 3 is needle-like, and the lateral electrode contactless ignition 3 of described needle-like coaxially arranges with the central shaft of described central electrode 5, described lateral electrode contactless ignition 3 one ends of needle-like are welded on the tapered tip of described lateral electrode firing tip matrix 2, the other end of the described lateral electrode contactless ignition 3 of needle-like is over against the axial end of answering described central electrode 5, the lateral electrode contactless ignition 3 of described needle-like is 6:4 with the height ratio of lateral electrode firing tip matrix 2, the height of the lateral electrode contactless ignition 3 of described needle-like is 0.6 millimeter, the height of described lateral electrode firing tip matrix 2 is 0.4 millimeter.
Preferred embodiment three: described lateral electrode contactless ignition 3 is round table-like, and described round table-like lateral electrode contactless ignition 3 coaxially arranges with the central shaft of described central electrode 5, an end face of round table-like described lateral electrode contactless ignition 3 is welded on the tapered tip of described lateral electrode firing tip matrix 2, another end face of round table-like described lateral electrode contactless ignition 3 is over against the axial end of answering described central electrode 5, described round table-like lateral electrode contactless ignition 3 is 1:2 with the height ratio of lateral electrode firing tip matrix 2, the height of described round table-like lateral electrode contactless ignition 3 is 0.3 millimeter, the height of described lateral electrode firing tip matrix 2 is 0.6 millimeter.
Preferred embodiment four: as shown in Figure 9, described lateral electrode firing tip matrix 2 is welded on end face vertical with the axial end of described central electrode 5 on described lateral electrode body 1, described lateral electrode contactless ignition 3 is welded on described lateral electrode firing tip matrix 2, and described lateral electrode contactless ignition 3 is over against the axial end of answering described central electrode 5.
Comprehensive the above, the technical solution of the utility model can fully effectively complete above-mentioned utility model purpose, and structural principle of the present utility model and the principle of work and power are all verified in an embodiment fully, and can reach effect and the purpose of expection, and embodiment of the present utility model also can be converted according to these principles, therefore, the utility model comprises that all mention all replacement contents in scope in claim.Any equivalence of doing in the utility model claim changes, within all belonging to the scope of the claims of this case application.
Claims (5)
1. the lateral electrode firing tip of a spark plug, it is characterized in that comprising: the lateral electrode body, one end of described lateral electrode body is welded on the metal shell of spark plug, the other end is bent to the axial end of the central electrode of corresponding described spark plug, lateral electrode firing tip matrix, described lateral electrode firing tip matrix and described lateral electrode body are nickel-base material, the lateral electrode contactless ignition, described lateral electrode contactless ignition is the noble metal material, described lateral electrode contactless ignition is welded on described lateral electrode firing tip matrix, described lateral electrode firing tip matrix is welded on described lateral electrode body, and described lateral electrode contactless ignition is over against the axial end of answering described central electrode.
2. the lateral electrode firing tip of a kind of spark plug as claimed in claim 1, it is characterized in that: described lateral electrode firing tip matrix is tapered, the bottom surface of the described lateral electrode firing tip matrix of taper is welded on a side of the axial end of corresponding described central electrode on described lateral electrode body, and described lateral electrode contactless ignition is welded on the top of the described lateral electrode firing tip matrix of taper.
3. the lateral electrode firing tip of a kind of spark plug as claimed in claim 2, it is characterized in that: described lateral electrode contactless ignition is needle-like, and the lateral electrode contactless ignition of described needle-like and the central shaft of described central electrode coaxially arrange, described lateral electrode contactless ignition one end of needle-like is welded on the tapered tip of described lateral electrode firing tip matrix, and the other end of the described lateral electrode contactless ignition of needle-like is over against the axial end of answering described central electrode.
4. the lateral electrode firing tip of a kind of spark plug as claimed in claim 2, it is characterized in that: described lateral electrode contactless ignition is round table-like, and described round table-like lateral electrode contactless ignition and the central shaft of described central electrode coaxially arrange, an end face of round table-like described lateral electrode contactless ignition is welded on the tapered tip of described lateral electrode firing tip matrix, and another end face of round table-like described lateral electrode contactless ignition is over against the axial end of answering described central electrode.
5. the lateral electrode firing tip of a kind of spark plug as claimed in claim 1, it is characterized in that: described lateral electrode firing tip matrix is welded on end face vertical with the axial end of described central electrode on described lateral electrode body, described lateral electrode contactless ignition is welded on described lateral electrode firing tip matrix, and described lateral electrode contactless ignition is over against the axial end of answering described central electrode.
Priority Applications (1)
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CN201320485614.4U CN203387050U (en) | 2013-08-09 | 2013-08-09 | Side-electrode ignition end of spark plug |
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CN201320485614.4U CN203387050U (en) | 2013-08-09 | 2013-08-09 | Side-electrode ignition end of spark plug |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103457160A (en) * | 2013-08-09 | 2013-12-18 | 株洲湘火炬火花塞有限责任公司 | Side electrode ignition end of sparking plug and manufacturing method thereof |
US11621544B1 (en) | 2022-01-14 | 2023-04-04 | Federal-Mogul Ignition Gmbh | Spark plug electrode and method of manufacturing the same |
US11831130B2 (en) | 2022-03-29 | 2023-11-28 | Federal-Mogul Ignition Gmbh | Spark plug, spark plug electrode, and method of manufacturing the same |
US11870222B2 (en) | 2021-05-04 | 2024-01-09 | Federal-Mogul Ignition Gmbh | Spark plug electrode and method of manufacturing the same |
US11901705B2 (en) | 2021-07-22 | 2024-02-13 | Federal-Mogul Ignition Gmbh | Electrode tip assembly for a spark plug and method of manufacturing the same |
-
2013
- 2013-08-09 CN CN201320485614.4U patent/CN203387050U/en not_active Expired - Lifetime
Cited By (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN103457160A (en) * | 2013-08-09 | 2013-12-18 | 株洲湘火炬火花塞有限责任公司 | Side electrode ignition end of sparking plug and manufacturing method thereof |
US11870222B2 (en) | 2021-05-04 | 2024-01-09 | Federal-Mogul Ignition Gmbh | Spark plug electrode and method of manufacturing the same |
US11901705B2 (en) | 2021-07-22 | 2024-02-13 | Federal-Mogul Ignition Gmbh | Electrode tip assembly for a spark plug and method of manufacturing the same |
US11621544B1 (en) | 2022-01-14 | 2023-04-04 | Federal-Mogul Ignition Gmbh | Spark plug electrode and method of manufacturing the same |
US11777281B2 (en) | 2022-01-14 | 2023-10-03 | Federal-Mogul Ignition Gmbh | Spark plug electrode and method of manufacturing the same |
US11831130B2 (en) | 2022-03-29 | 2023-11-28 | Federal-Mogul Ignition Gmbh | Spark plug, spark plug electrode, and method of manufacturing the same |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
CP03 | Change of name, title or address |
Address after: Zone 4b, South Industrial Park, high tech Zone, Zhuzhou City, Hunan Province Patentee after: Weichai torch Technology Co.,Ltd. Patentee after: SOMA Co.,Ltd. Address before: 412000 4B zone, South Industrial Zone, Zhuzhou hi tech Development Zone, Hunan Patentee before: ZHUZHOU TORCH SPARKPLUG Co.,Ltd. Patentee before: SOMA Co.,Ltd. |
|
CP03 | Change of name, title or address | ||
CX01 | Expiry of patent term |
Granted publication date: 20140108 |
|
CX01 | Expiry of patent term |