CN201435529Y - Winding resistor spark plug - Google Patents
Winding resistor spark plug Download PDFInfo
- Publication number
- CN201435529Y CN201435529Y CN2009201207615U CN200920120761U CN201435529Y CN 201435529 Y CN201435529 Y CN 201435529Y CN 2009201207615 U CN2009201207615 U CN 2009201207615U CN 200920120761 U CN200920120761 U CN 200920120761U CN 201435529 Y CN201435529 Y CN 201435529Y
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- CN
- China
- Prior art keywords
- spark plug
- iron
- clad
- resistor
- ceramic piece
- 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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Abstract
The utility model provides a winding resistor spark plug with stable resistance value, which comprises an iron shell, a ceramic piece, a center electrode and a resistor body. The center electrode andthe resistor body are arranged in an inner cavity of the ceramic piece. One end of the ceramic piece installed with the center electrode is stretched into the iron shell and is encapsulated with the iron shell in an airtight manner. The resistor body comprises an insulating seat, a winding resistor and metal conductive cap sheets; the winding resistor is wrapped and wound on the insulating seat, and the metal conductive cap sheets which are arranged at the two ends of the insulating seat are in electrical contact with the winding resistor. The ceramic piece and the iron shell are encapsulatedthrough cold/hot-pressing edge covering. When in hot-pressing edge covering, nitrogen flushing is carried out and instant cooling can be realized. The beneficial effects of the winding resistor sparkplug are as follows: the resistor body adopts the winding resistor which is wound on the insulating seat, the winding resistor endures high temperature and voltage, the resistance value cannot be affected by the environment basically, the stable working of the spark plug can be ensured, and the service life of the spark plug can be greatly prolonged; a red copper washer is arranged between the iron shell and the ceramic piece, so as to prevent abrasion; the iron shell and the ceramic piece are fixed through hot-pressing edge covering, so that the mechanical intensity is high.
Description
Technical field
The utility model relates to a kind of spark plug, specifically is meant the wire-wound resistor spark plug that a kind of resistive element resistance is stable.
Background technology
Existing spark plug comprises iron-clad, ceramic member, is located at central electrode and resistive element in the ceramic member, the end that ceramic member is equipped with central electrode stretches into iron-clad and closes encapsulation with iron-clad is airtight, has kink on the iron-clad as electrode, when adding high pressure, produce electric spark between the kink of central electrode and iron-clad, be used for the combustion gas in the ignition engine cylinder.Resistive element plays jamproof effect, guarantees that spark plug is not subjected to peripheral influence of magnetic field, thereby produces stable electric spark.There is following problem in existing spark plug: 1) resistive element generally adopts powder sintered resistance, when the processing spark plug, need the 1-4 road to add the operation of powder to ceramic member, and whenever add a powder and all need to carry out compacting operation, put into the sintering furnace high temperature sintering again, the variation of furnace temperature also can cause resistance instability, the fast bad reflection of change in resistance, its resistance can produce great changes in variations in temperature, causing spark plug to produce the spark power alters a great deal, even can not light a fire, because resistance instability, aging fast, spark plug life is also shorter.Occurred the stable wire-wound resistor of resistance in the market, be used for making precision instrument more, also be not applied in the spark plug at present; 2) ceramic member and iron-clad close encapsulation by forms such as riveted joint are airtight, and seal is difficult to guarantee.
Summary of the invention
The utility model provides a kind of resistance stable wire-wound resistor spark plug at the defective that prior art exists.
The technical solution adopted in the utility model is:
The wire-wound resistor spark plug, comprise iron-clad, ceramic member, be located at the central electrode and the resistive element of ceramic member inner chamber, the end that ceramic member is equipped with central electrode stretches into iron-clad and closes encapsulation with iron-clad is airtight, the metallic conduction paste that described resistive element comprises insulating base, surrounds the wire-wound resistor on the insulating base and is installed on the insulating base two ends and electrically contacts with wire-wound resistor.
Described ceramic member and iron-clad junction are provided with copper washer.
Described ceramic member and iron-clad are by bound edge and the hot pressing bound edge encapsulation of colding pressing.
Carry out during the hot pressing bound edge that nitrogen washes away, the moment cooling.
Described iron-clad and engine junction are provided with the metal outer washer.
The beneficial effects of the utility model are: resistive element adopts the wire-wound resistor that is wound on the insulating base, the wire-wound resistor high temperature high voltage resistant, and its resistance is not affected by environment substantially, guarantees the spark plug working stability, increases the service life greatly; Be provided with copper washer between iron-clad and the ceramic member, prevent wearing and tearing; Iron-clad and ceramic member are fixed by the hot pressing bound edge, in the time of hot pressing with nitrogen wash away, moment cooling, prevent that effectively iron-clad nut top from producing the trace that burns, mechanical strength height.
Description of drawings
Fig. 1 is an explosive view of the present utility model;
Fig. 2 is the enlarged drawing of resistive element part.
Embodiment
The utility model is described in further detail below in conjunction with embodiment and accompanying drawing:
Referring to Fig. 1 and Fig. 2, existing spark plug comprises iron-clad 1, ceramic member 2, is located at central electrode 3 and resistive element 4 in the ceramic member 2, central electrode 3 is installed in the bottom of ceramic member 2, the end that ceramic member 2 is equipped with central electrode stretches into iron-clad 1 and closes encapsulation with iron-clad 1 is airtight, also be provided with inner screw 21 and sintered-aluminium power 22 in the ceramic member 2, be arranged with high temperature magnetic field helical spring 23 on the inner screw 21, the part that the ceramic member 2 tops external screw rod 24 that has been threaded, external screw rod 24 stretch out ceramic member 2 nut 25 that has been threaded.When between the kink of central electrode 3 and iron-clad 1, adding high pressure, produce electric spark, the gaseous mixture in the ignition engine cylinder.
The utility model is that its improvements are: the metallic conduction paste 43 that resistive element 4 comprises insulating base 41, surrounds the wire-wound resistor 42 on the insulating base 41 and be installed on insulating base 41 two ends and electrically contact with wire-wound resistor 42 to the improvement of existing spark plug.
During assembling, external screw rod 24 is put in ceramic member 2 internal threads, exterior nut cap 25 is screwed in external screw rod 24 external screw teeths, ceramic member 2 stretches in the iron-clad 1 after being inserted in copper washer 5, carry out cold and hot pressure and come bound edge, under hot pressing light sensation pipe heat effect, produce thermal expansion, carrying out nitrogen during hot pressing washes away, instantaneously cooled operation does not produce bright trace to guarantee iron-clad 1 plate surface, prevent to twist off when spark plug from packing engine into, metal outer washer 6 is inserted at 1 screw thread place at iron-clad, metal outer washer 6 has good ductility, prevents from effectively that spark plug from packing into to produce gas leak phenomenon behind the engine.
The utility model is owing to adopted wire-wound resistor, any change does not take place substantially in 1000 ℃ of following resistance values of temperature, 25000 volts of anti-high-tension electricities, strengthen the anti-interference of spark plug greatly, spark plug resistor is generally selected 5～10K Ω for use, its resistance difference of resistive element of the present utility model is between 0～0.3 ohm, spark plug life also can prolong, spark rate is stable, has promoted the ignition performance of spark plug, and fuel oil energy fully burns, save fuel oil, reduced because of resistance does not reach the phenomenon that standard causes whole product rejection of spark plug, reduced resource consumption, promoted the spark plug product percent of pass.
Claims (4)
1. wire-wound resistor spark plug, comprise iron-clad (1), ceramic member (2), be located at central electrode (3) and resistive element (4) in the ceramic member (2), the end that ceramic member (2) is equipped with central electrode (3) stretches into iron-clad (1) and closes encapsulation with iron-clad (1) is airtight, it is characterized in that: the metallic conduction paste (43) that described resistive element (4) comprises insulating base (41), surrounds the wire-wound resistor (42) on the insulating base (41) and is installed on insulating base (41) two ends and electrically contacts with wire-wound resistor (42).
2. wire-wound resistor spark plug as claimed in claim 1 is characterized in that: described ceramic member (2) and iron-clad (1) junction are provided with copper washer (5).
3. wire-wound resistor spark plug as claimed in claim 1 or 2 is characterized in that: described iron-clad (1) is provided with metal outer washer (6) with the engine junction.
4. wire-wound resistor spark plug as claimed in claim 1 or 2 is characterized in that: described ceramic member (2) and iron-clad (1) are by bound edge and the hot pressing bound edge encapsulation of colding pressing, and carrying out also during the hot pressing bound edge, nitrogen washes away, the moment cooling.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201207615U CN201435529Y (en) | 2009-06-01 | 2009-06-01 | Winding resistor spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201207615U CN201435529Y (en) | 2009-06-01 | 2009-06-01 | Winding resistor spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201435529Y true CN201435529Y (en) | 2010-03-31 |
Family
ID=42054342
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201207615U Expired - Fee Related CN201435529Y (en) | 2009-06-01 | 2009-06-01 | Winding resistor spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201435529Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240874A (en) * | 2014-08-22 | 2014-12-24 | 重庆从仁机电有限公司 | Ceramic resistor of spark plug cap |
| CN104240878A (en) * | 2014-08-22 | 2014-12-24 | 重庆从仁机电有限公司 | Wire wound resistor of spark plug cap |
-
2009
- 2009-06-01 CN CN2009201207615U patent/CN201435529Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104240874A (en) * | 2014-08-22 | 2014-12-24 | 重庆从仁机电有限公司 | Ceramic resistor of spark plug cap |
| CN104240878A (en) * | 2014-08-22 | 2014-12-24 | 重庆从仁机电有限公司 | Wire wound resistor of spark plug cap |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100331 Termination date: 20110601 |