CN206524521U - A kind of spark plug with delay electron tube - Google Patents

Abstract

The utility model discloses a kind of spark plug with delay electron tube, including insulation body, and it is arranged on central electrode and metal shell on insulation body, metal shell is arranged on outside insulation tube body and correspondence central electrode is provided with lateral electrode, central electrode is included in conducting rod, electron tube and the discharge lever being sequentially connected electrically along the sense of current, electron tube filled with inert gas.A kind of spark plug with delay electron tube of the present utility model, with discharge time can be extended, so that extend the duration of ignition to oil gas in cylinder, the advantages of improving oil gas utilization rate and cylinder explosive force.

Description

A kind of spark plug with delay electron tube

Technical field

The utility model is related to a kind of spark plug, more particularly to a kind of spark plug with delay electron tube.

Background technology

Spark plug is a main element in automotive engine ignition system, and the effect of spark plug is that ignition coil is produced Raw high-tension electricity introduces engine cylinder, and spark is produced between the gap of sparking-plug electrode and lights mixed oil and gas, mixed oil and gas Burning expansion is often as high-tension electricity circulation there is provided the energy needed for engine power output, spark plug of the prior art Central electrode is crossed, the gap discharge between central electrode and lateral electrode, and puncture gap formation electric arc, so as to form spark to gas Oil gas in cylinder is lighted, but existing spark plug due to the gap discharge time between central electrode and lateral electrode compared with Short so that electric arc duration is shorter, the spark of formation can only keep in a flash, causing spark plug to light oil gas and not enough filling Point, so as to cause the utilization rate of oil gas relatively low, reduce the explosive force of cylinder.

The content of the invention

The utility model aims to solve the problem that above-mentioned mentioned technical problem can extend discharge time there is provided one kind, so that Extend the duration of ignition to oil gas in cylinder, improve the spark plug of oil gas utilization rate and cylinder explosive force.

The utility model is realized by following technical scheme：A kind of spark plug with delay electron tube, including Insulated body, and the central electrode and metal shell being arranged on insulation body, and metal shell is arranged on outside insulation tube body And correspondence central electrode is provided with lateral electrode, conducting rod that central electrode includes being sequentially connected electrically along the sense of current, electron tube and Filled with inert gas in discharge lever, electron tube.

Preferably, the center of the insulation body is provided through the mounting hole of insulation body, center along its length Electrode is fixedly installed in mounting hole, and dorsad one end of electron tube is respectively arranged with and extends insulation body for conducting rod and discharge lever Outside terminals and discharge end.

Preferably, the discharge lever, electron tube and conducting rod pass through with being fixedly installed by way of insulation body successively burn-back In mounting hole.

Preferably, the discharge end is tapered is set.

Preferably, the length of the electron tube is 3-18mm.

Preferably, the insulation shell that the electron tube includes both ends open, surrounding face closure is enclosed, insulation shell Two ends, which are respectively arranged with, can close the conductive plate of opening.

Preferably, the inert gas is arranged in the sealed chamber that conductive plate and insulation shell are configured to, conducting rod with Discharge lever is abutted with being arranged on the conductive plate at insulation shell two ends respectively.

Preferably, the lateral electrode includes the spark generation for the connecting portion and plate-like setting being connected with metal shell Portion, forms a specific gap between spark generating unit and discharge end.

Preferably, described less one end of discharge end diameter is towards the center of spark generating unit.

Preferably, the inert gas includes argon gas or neon.

Beneficial effect is：Compared with prior art, in a kind of spark plug with delay electron tube of the present utility model Heart electrode is sequentially connected electrically construction by conducting rod, electron tube and discharge lever and formed, and filled with inert gas in electron tube so that When passing through electron tube by the high-tension current of conducting rod, the inert gas in impingement of electrons pipe makes inert gas in electron tube Everywhere dissociate produce electron stream, and accelerating tube in electronics motion, extend discharge lever discharge time so that discharge lever with The spark produced between lateral electrode is stronger, and the duration is longer, so that the oil gas burning in cylinder is more abundant, profit It is higher with rate, with higher engine fan-out capability.

Brief description of the drawings

Embodiment of the present utility model is described in further detail below in conjunction with accompanying drawing, wherein：

Fig. 1 is a kind of structural representation of the spark plug with delay electron tube of the present utility model；

Fig. 2 is a kind of sectional view of the spark plug with delay electron tube of the present utility model.

Embodiment

As depicted in figs. 1 and 2, a kind of spark plug with delay electron tube 3, including insulation body 1, and be arranged on absolutely Central electrode and metal shell 12 on edge body 1, insulation body 1 can use ceramics pipe outer, the insulation of ceramic insulating tube Performance is good, and high temperature high voltage resistant, can be worked long hours in the adverse circumstances of engine chamber, certainly, and insulation body 1 also may be used To be made of the material of other high temperature high voltage resistants.Metal shell 12 is arranged on the outside of insulation body 1 and correspondence central electrode is set Lateral electrode is equipped with, metal shell 12 can be fixedly installed on the outside of insulation body 1 by way of being socketed or welding, and The threaded joints 10 for being threadedly coupled with cylinder can be provided with metal shell 12, central electrode is included along the sense of current Filled with inert gas in conducting rod 2, electron tube 3 and the discharge lever 4 being sequentially connected electrically, electron tube 3, conducting rod 2 can with discharge lever 4 Think metallic rod body, or the body of conducting rod 2 that other conductive materials are made, one end and side of the dorsad electron tube 3 of discharge lever 4 Electrode is correspondingly arranged, and high-tension current is flowed into electron tube 3 by conducting rod 2, and by discharge lever 4, in the dorsad electronics of discharge lever 4 The end electric discharge of pipe 3, when high-tension current passes through electron tube 3, the inert gas in impingement of electrons pipe 3 makes the electronics of inactive surfaces Dissociate into free electron, so as to strengthen the motion of electronics in the magnitude of current in electron tube 3, and accelerating tube 3 so that discharge lever The spark produced between 4 and lateral electrode is stronger, and the electron beam in electron tube 3 can be caused to be dispersed into electron stream, prolongs The discharge period of the end of long discharge bar 4, make the spark duration produced between discharge lever 4 and lateral electrode longer, from And make it that the oil gas burning in cylinder is more abundant, utilization rate is higher, and with higher engine fan-out capability.

The center of insulation body 1 can be provided through the mounting hole 5 of insulation body 1, central electrode along its length It is fixedly installed in mounting hole 5, dorsad one end of electron tube 3 is respectively arranged with and extends insulation body for conducting rod 2 and discharge lever 4 Terminals 6 and discharge end 7 outside 1, central electrode are arranged on the inside of insulation body 1, guarantor can be played to central electrode Shield is acted on, and prevents central electrode is exposed for a long time from corroding in atmosphere, and the surface of terminals 6 is provided with the recess of annular, just In the connection of wire, discharge end 7 is configured towards lateral electrode, and discharge end 7 discharges high-tension current, high-tension current disruptive discharge Air between end 7 and lateral electrode, forms electric arc.

Further, discharge lever 4, electron tube 3 and conducting rod 2 are set with being fixed by way of insulation body 1 successively burn-back Put in mounting hole 5, that is, insulate body 1 in sintering procedure, carry out burn-back with discharge lever 4, electron tube 3 and conducting rod 2 successively, Formed so that central electrode is fired with the one of insulation body 1, the connection that this causes central electrode between the body 1 that insulate is more Plus stably, firmly.

Discharge end 7 can be set with tapered, and the diameter of discharge end 7 is uniformly successively decreased by the end of discharge lever 4 towards lateral electrode, High-tension current flows out from the less one end of the diameter of discharge end 7, it is easier to striking so that be easier between discharge end 7 and lateral electrode Electric arc is produced, spark is formed.

The length of electron tube 3 could be arranged to 3-10mm, during electron tube 3 of the high-tension current Jing Guo above-mentioned length, it is easier to Puncture the inert gas in electron tube 3, form electric current.

Specifically, the insulation shell 8 that electron tube 3 includes both ends open, surrounding face closure is enclosed, insulation shell 8 can Think that ceramics or other insulation, the material of high temperature high voltage resistant are made, the two ends of insulation shell 8, which are respectively arranged with, can close opening Conductive plate 9, conductive plate 9 can be made up of metal material, can also be made up of other nonmetallic materials with good conductivity, lazy Property gas be arranged in the sealed chamber that conductive plate 9 and insulation shell 8 are configured to, conducting rod 2 is with discharge lever 4 respectively with being arranged on The conductive plate 9 at the two ends of insulation shell 8 is abutted, further, and the surface that two conductive plates 9 are respectively facing discharge lever 4 and conducting rod 2 is set Recess is equipped with, discharge lever 4 is with being provided with the projection with recesses fit on conducting rod 2, in burn-back, raised and recesses fit can To improve the stability electrically connected between electron tube 3 and discharge lever 4, conducting rod 2.

Lateral electrode can include the spark generating unit 11 for the connecting portion 10 and plate-like setting being connected with metal shell 12, Connecting portion 10 can be set in shaft-like, and connecting portion 10 can be with the integrally casting shaping of metal shell 12, the dorsad metal of connecting portion 10 One end of shell 12 is connected with spark generating unit 11, and junction can be in the kink of arcuation, the direction of spark generating unit 11 The axis at the surface vertical discharge end 7 of discharge end 7 is configured, and one is formed between spark generating unit 11 and discharge end 7 specific Gap, further, the less one end of the diameter of discharge end 7 can so cause discharge end 7 towards the center of spark generating unit 11 The spark produced between spark generating unit 11 is more uniform, and spark area is bigger formed by, and ignition effectiveness is higher.

The inert gas used in electron tube 3 can be helium, neon, argon gas, Krypton, xenon, radon gas, it is preferred to use argon Gas or neon, argon gas and neon compare in other inert gas air that content is higher, produce and are easier, production cost is relatively low.

Above example is only not limited to illustrate the technical solution of the utility model, all without departing from this Any modification of utility model spirit and scope or equivalent substitution, it all should cover the scope in technical solutions of the utility model It is interior.

Claims (10)

1. a kind of spark plug with delay electron tube, including insulation body（1）, and it is arranged on insulation body（1）On in Heart electrode and metal shell（12）, metal shell（12）It is arranged on insulation body（1）Outside and corresponding central electrode is provided with side Electrode, it is characterised in that the central electrode includes the conducting rod being sequentially connected electrically along the sense of current（2）, electron tube（3）With put Electric pole（4）, the electron tube（3）It is interior filled with inert gas.

2. a kind of spark plug with delay electron tube according to claim 1, it is characterised in that the insulation body （1）Center be provided through along its length insulate body（1）Mounting hole（5）, central electrode is fixedly installed on installation Hole（5）It is interior, conducting rod（2）With discharge lever（4）Dorsad electron tube（3）One end be respectively arranged with and extend insulation body（1）Outside The terminals in portion（6）And discharge end（7）.

3. a kind of spark plug with delay electron tube according to claim 2, it is characterised in that the discharge lever（4）、 Electron tube（3）And conducting rod（2）By with insulation body（1）The mode of burn-back is fixedly installed on mounting hole successively（5）It is interior.

4. a kind of spark plug with delay electron tube according to claim 2, it is characterised in that the discharge end（7） It is tapered to set.

5. a kind of spark plug with delay electron tube according to claim 1, it is characterised in that the electron tube（3） Length be 3-18mm.

6. a kind of spark plug with delay electron tube according to claim 1, it is characterised in that the electron tube（3） The insulation shell enclosed including both ends open, surrounding face closure（8）, insulation shell（8）Two ends be respectively arranged with and can seal The conductive plate of make and break mouthful（9）.

7. a kind of spark plug with delay electron tube according to claim 6, it is characterised in that the inert gas is set Put in conductive plate（9）With insulation shell（8）In the sealed chamber being configured to, conducting rod（2）With discharge lever（4）Respectively with being arranged on Insulation shell（8）The conductive plate at two ends（9）Abut.

8. a kind of spark plug with delay electron tube according to claim 4, it is characterised in that the lateral electrode includes With metal shell（12）The connecting portion of connection（10）And the spark generating unit of plate-like setting（11）, spark generating unit（11）With Discharge end（7）Between formed a specific gap.

9. a kind of spark plug with delay electron tube according to claim 8, it is characterised in that the discharge end（7） The less one end of diameter is towards spark generating unit（11）Center.

10. a kind of spark plug with delay electron tube according to claim 1, it is characterised in that the inert gas Including argon gas or neon.