CN218040207U

CN218040207U - Spark plug for double iridium

Info

Publication number: CN218040207U
Application number: CN202221854453.7U
Authority: CN
Inventors: 童鑫峰
Original assignee: Yuyao Siaimu Technology Co ltd
Current assignee: Yuyao Siaimu Technology Co ltd
Priority date: 2022-07-18
Filing date: 2022-07-18
Publication date: 2022-12-13
Anticipated expiration: 2032-07-18

Abstract

The application discloses to two iridium spark plugs of piece, it includes metal casing, insulating body, central electrode and side electrode, and the tip of central electrode is equipped with the aciculiform electrode tip, and the electrode tip sets up between central electrode and kink, is equipped with the wedge electrode piece on the kink, and the tip of kink has a wedge breach, and the electrode piece sets up in order to fill the wedge breach in the wedge breach, the electrode piece have with the electrode tip relative discharge surface and with form the discharge gap between the electrode tip. The electrode tip and the electrode block are made of iridium, so that the ignition performance is more superior, the ignition sensitivity and stability are improved, and the spark plug is more durable based on the good wear resistance of the iridium.

Description

Spark plug for double iridium

Technical Field

The present application relates to the field of electrical equipment technology, and more particularly, to a spark plug for bulk dual iridium.

Background

The spark plug is a main element in an ignition system of an automobile engine, and the spark plug is used for introducing high-voltage electricity generated by an ignition coil into a cylinder of the engine, generating sparks between gaps of electrodes of the spark plug to ignite mixed oil gas, and combusting and expanding the mixed oil gas to provide energy required by power output of the engine.

In order to overcome the problem that the nickel material cannot meet the high-temperature abrasion in work, people generally use a double-iridium spark plug aiming at a needle, but the mode aiming at the needle inevitably causes the overall height of the spark plug to be increased, and the spark plug is easy to collide with a valve piston ring and be damaged in some engine structures.

In the same way, a point-to-point double-iridium spark plug exists, and dots made of iridium are welded on a side electrode opposite to an iridium needle, so that although the overall height of the motor is reduced, the dots are not firmly welded, are easy to fall off, have poor wear resistance and have short service life.

Therefore, a spark plug capable of effectively solving the above-described problems has been desired.

SUMMERY OF THE UTILITY MODEL

The application has the advantages that the iridium plug is provided for the double iridium plugs, the needle-shaped iridium electrode tip is arranged at the end of the center electrode, the wedge-shaped iridium gold block is welded at the wedge-shaped notch of the bending part of the side electrode, the electrode tip and the electrode block which are made of iridium are adopted, the superior ignition performance is realized, the ignition sensitivity and stability are improved, the spark plug is more durable based on the good wear resistance of iridium, in addition, the overall height of the spark plug can not be increased through the mode of the iridium plug, the condition of the top valve can not occur when the iridium plug is applied to certain engines, and the application range is wider.

Additional advantages and features of the present application will become apparent from the description which follows, and may be realized by means of the instrumentalities and combinations particularly pointed out in the specification.

In order to realize at least one advantage, the application provides a to two iridium spark plugs, including metal casing, insulating body, center electrode and side electrode, its characterized in that, the metal casing cover is located outside the insulating body, center electrode sets up in the insulating body, side electrode includes connecting portion and kink, the one end of connecting portion with the metal casing links to each other, the kink transversely extends from the other end of connecting portion, and is located under the center electrode is relative; the electrode structure comprises a central electrode, a bent part and an electrode block, wherein the end part of the central electrode is provided with a needle-shaped electrode tip, the electrode tip is arranged between the central electrode and the bent part, the bent part is provided with a wedge-shaped electrode block, the end part of the bent part is provided with a wedge-shaped gap, the electrode block is arranged in the wedge-shaped gap to fill the wedge-shaped gap, the electrode block is provided with a discharge surface opposite to the electrode tip, and a discharge gap is formed between the electrode block and the electrode tip.

In the block double iridium spark plug according to the present application, the electrode block and the electrode tip are both made of iridium.

In the spark plug for block double iridium according to the present application, the discharge surface of the electrode block and the electrode tip are perpendicular to each other.

In the pair of piece two iridium spark plug according to this application, the wedge breach is 45 degrees notches, the electrode piece also is 45 degrees wedge blocks, the wedge block just in time fills the wedge breach.

In a spark plug for a block of dual iridium according to the present application, the electrode block is laser welded into the wedge-shaped notch.

Further objects and advantages of the present application will become apparent from an understanding of the ensuing description and drawings.

These and other objects, features and advantages of the present application will become more fully apparent from the following detailed description and the accompanying drawings.

Drawings

The above and other objects, features and advantages of the present application will become more apparent by describing in more detail embodiments of the present application with reference to the attached drawings. The accompanying drawings are included to provide a further understanding of the embodiments of the application and are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description serve to explain the principles of the application. In the drawings, like reference numbers generally represent like parts or steps.

FIG. 1 illustrates an overall schematic view for a block dual iridium spark plug in accordance with an embodiment of the present application.

FIG. 2 illustrates a partially enlarged schematic view of a block dual iridium spark plug in accordance with an embodiment of the present application.

Detailed Description

Hereinafter, example embodiments according to the present application will be described in detail with reference to the accompanying drawings. It should be understood that the described embodiments are only some embodiments of the present application and not all embodiments of the present application, and that the present application is not limited by the example embodiments described herein.

Exemplary devices

As shown in fig. 1 and 2, the structure for the block dual iridium spark plug is elucidated. The metal shell 1 is sleeved outside the insulating tube body 2, and the central electrode 3 is arranged in the insulating tube body 2; specifically, the side electrode 4 includes a connecting portion 41 and a bent portion 42, one end of the connecting portion 41 is connected to the metal shell 1, the bent portion 42 extends transversely from the other end of the connecting portion 41 to form an L-shaped electrode with the connecting portion 41, and the bent portion 42 is located right below the central electrode 3.

Further, the tip of center electrode 3 is equipped with needle electrode tip 5, needle electrode tip 5 is located center electrode 3 with between the kink 42, be equipped with wedge electrode block 6 on the kink 42, just the tip of kink 42 has a wedge breach 421, electrode block 6 set up in the wedge breach 421 in order to fill wedge breach 421, electrode block 6 have with electrode tip 5 relative discharge surface 61 and with form discharge gap 100 between the electrode tip 5, in this application example, wedge breach 421 is 45 degrees breach, electrode block 6 also is 45 degrees wedge, electrode block 6 just in time fills wedge breach 421, discharge surface 61 with electrode tip 5 mutually perpendicular. Through the mode to the piece, can not increase the overall height of spark plug, the condition that also can not take place the valve of holding up when using in some engines, and the range of application is wider.

Preferably, the electrode block 6 and the electrode tip 5 are made of iridium, which not only realizes more superior ignitability and improves ignition sensitivity and stability, but also makes the spark plug more durable based on the good wear resistance of iridium, thereby greatly improving the service life of the spark plug.

Particularly, the electrode block 6 is fixedly connected in the wedge-shaped notch 421 in a laser welding manner, so that the connection strength of the electrode block 6 is effectively improved.

The foregoing describes the general principles of the present application in conjunction with specific embodiments, however, it is noted that the advantages, effects, etc. mentioned in the present application are merely examples and are not limiting, and they should not be considered essential to the various embodiments of the present application. Furthermore, the foregoing disclosure of specific details is provided for purposes of illustration and understanding only, and is not intended to limit the application to the details which are set forth in order to provide a thorough understanding of the present application.

The block diagrams of devices, apparatuses, systems referred to in this application are only given as illustrative examples and are not intended to require or imply that the connections, arrangements, configurations, etc. must be made in the manner shown in the block diagrams. These devices, apparatuses, devices, systems may be connected, arranged, configured in any manner, as will be appreciated by one skilled in the art. Words such as "including," "comprising," "having," and the like are open-ended words that mean "including, but not limited to," and are used interchangeably herein. The words "or" and "as used herein mean, and are used interchangeably with, the word" and/or, "unless the context clearly dictates otherwise. The word "such as" is used herein to mean, and is used interchangeably with, the phrase "such as but not limited to".

It should also be noted that in the devices, apparatuses, and methods of the present application, the components or steps may be decomposed and/or recombined. These decompositions and/or recombinations are to be considered as equivalents of the present application.

The previous description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other aspects without departing from the scope of the application. Thus, the present application is not intended to be limited to the aspects shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

The foregoing description has been presented for purposes of illustration and description. Furthermore, the description is not intended to limit embodiments of the application to the form disclosed herein. While a number of example aspects and embodiments have been discussed above, those of skill in the art will recognize certain variations, modifications, alterations, additions and sub-combinations thereof.

Claims

1. A pair of iridium spark plugs of piece, including metal casing, insulating tube, central electrode and side electrode, characterized by that, the said metal casing is located outside the said insulating tube, the said central electrode is set up in the said insulating tube, the said side electrode includes connecting portion and kink, one end of the said connecting portion couples to said metal casing, the said kink extends from another end of the said connecting portion horizontally, and locate at the opposite under of the said central electrode;

the electrode structure comprises a central electrode, a bent part and an electrode block, wherein the end part of the central electrode is provided with a needle-shaped electrode tip, the electrode tip is arranged between the central electrode and the bent part, the bent part is provided with a wedge-shaped electrode block, the end part of the bent part is provided with a wedge-shaped gap, the electrode block is arranged in the wedge-shaped gap to fill the wedge-shaped gap, the electrode block is provided with a discharge surface opposite to the electrode tip, and a discharge gap is formed between the electrode block and the electrode tip.

2. The pair-block double iridium spark plug of claim 1 wherein the electrode block and the electrode tip are both made of iridium.

3. The spark plug of claim 2 wherein said discharge surface of said electrode block and said electrode tip are perpendicular to each other.

4. The pair of block double iridium spark plugs as claimed in claim 3 wherein said wedge gap is a 45 degree gap and said electrode block is also a 45 degree wedge, said electrode block just filling said wedge gap.

5. The spark plug of claim 4, wherein the electrode block is laser welded into the wedge-shaped notch.