CN205004616U - Novel spark plug - Google Patents
Novel spark plug Download PDFInfo
- Publication number
- CN205004616U CN205004616U CN201520635904.1U CN201520635904U CN205004616U CN 205004616 U CN205004616 U CN 205004616U CN 201520635904 U CN201520635904 U CN 201520635904U CN 205004616 U CN205004616 U CN 205004616U
- Authority
- CN
- China
- Prior art keywords
- spark plug
- metal
- metal shell
- metal screw
- ceramics insulator
- 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 discloses a novel spark plug, including wiring nut, ceramic insulator, metal screw rod, metal casing and center electrode, wiring nut lower extreme is connected with the metal screw rod, metal screw rod outside cover has ceramic insulator, the outside cover of ceramic insulator lower extreme has metal casing, still be equipped with one deck polyetheretherketone resin layer between ceramic insulator and the metal screw rod, metal screw rod lower extreme is equipped with center electrode, the tip runs through ceramic insulator and metal casing under the center electrode, metal casing's lower extreme is equipped with the threaded connection section, and metal casing's lower extreme still is equipped with telluric electricity field, be equipped with the ignition clearance between telluric electricity field and the center electrode. The utility model discloses simple structure is equipped with the multiple layer sealing structure, and insulating properties is good, can prevent the production of electric arc.
Description
[technical field]
The utility model relates to the technical field of auto parts machinery, particularly a kind of technical field of spark plug.
[background technology]
Spark plug, is commonly called as nozzles, and its effect is the high voltage pulse discharge of electricity that high-voltage conducting wires is sent here, air between disruptive spark plug two electrode, produces the mist that electric spark ignites in cylinder with this.Main Types has: pseudotype spark plug, edge body projected nose type spark plug, electrode type spark plug, seat type spark plug, polar form spark plug, face arcing type spark plug etc.The function of spark plug is that the high-tension electricity of volt up to ten thousand is introduced combustion chamber, and produces spark ignition gaseous mixture, coordinates and makes engine power, jointly decide the performance of engine to a great extent with ignition system and oil supply system.Its operation principle is that the pulsed high voltage discharges by high-voltage conducting wires is sent here punctures central electrode and to the air between ground electrode, produce electric spark to light the mist in cylinder, the performance of spark plug directly has influence on the overall performance of engine.Spark plug is made up of metal shell and insulator, and insulator must have good insulating properties and thermal conductivity, resistant against high temperatures thermal shock and chemical corrosion, and housing is steelwork.Spark plug also comprises central electrode and lateral electrode, is spark gap between the two, and the size in gap directly affects the startup of engine, power, job stability and economy.
[utility model content]
The purpose of this utility model solves the problems of the prior art exactly, proposes a kind of spark plug, and structure is simple, is provided with multi-layer sealing structure, good insulation preformance, can prevents the generation of electric arc.
For achieving the above object, the utility model proposes a kind of spark plug, comprise wiring nut, ceramics insulator, metal screw, metal shell and central electrode, described wiring nut lower end is connected with metal screw, outside described metal screw, cover has ceramics insulator, the outside cover of described ceramics insulator lower end has metal shell, one deck polyether-ether-ketone resin layer is also provided with between described ceramics insulator and metal screw, described metal screw lower end is provided with central electrode, described central electrode end portion runs through ceramics insulator and metal shell, the lower end of described metal shell is provided with the section of being threaded, the lower end of metal shell is also provided with grounding electrode, ignition gap is provided with between described grounding electrode and central electrode.
As preferably, described metal shell and ceramics insulator junction are provided with inner washer, described in the section of being threaded upper end and metal shell excessive place gasket seal is installed.
As preferably, the outside of described ceramics insulator is provided with the trench ripple for preventing electric arc from producing.
As preferably, between described metal screw and central electrode, be provided with conductor glass, the high pressure that mist burning produces can be born, ensure that sealing property simultaneously.
The beneficial effects of the utility model: the utility model is by the setting of multi-layer sealing structure and conductor glass, strengthen the sealing property between each parts of spark plug greatly, the key component of spark plug is insulator, by the setting of polyether-ether-ketone resin layer, ensure that internal structure and outer field insulating properties, external ceramic insulator has high voltage withstanding, shock-resistant, the characteristics such as resistance to chemical attack, simultaneously trench ripple the generation can organizing electric arc is set, prevent leakage of electricity.
Feature of the present utility model and advantage will be described in detail by reference to the accompanying drawings by embodiment.
[accompanying drawing explanation]
Fig. 1 is the structural representation of a kind of spark plug of the utility model.
In figure: 1-wiring nut, 2-ceramics insulator, 3-metal screw, 4-metal shell, 5-conductor glass, 6-central electrode, 7-grounding electrode, the 8-section of being threaded, 9-inner washer, 10-polyether-ether-ketone resin layer, 11-gasket seal, 12-ignition gap, 21-trench ripple.
[embodiment]
Consult Fig. 1, a kind of spark plug of the utility model, comprise wiring nut 1, ceramics insulator 2, metal screw 3, metal shell 4 and central electrode 6, described wiring nut 1 lower end is connected with metal screw 3, outside described metal screw 3, cover has ceramics insulator 2, the outside cover of described ceramics insulator 2 lower end has metal shell 4, one deck polyether-ether-ketone resin layer 10 is also provided with between described ceramics insulator 2 and metal screw 3, described metal screw 3 lower end is provided with central electrode 6, described central electrode 6 end portion runs through ceramics insulator 2 and metal shell 4, the lower end of described metal shell 4 is provided with the section of being threaded 8, the lower end of metal shell 4 is also provided with grounding electrode 7, ignition gap 12 is provided with between described grounding electrode 7 and central electrode 6, described metal shell 4 is provided with inner washer 9 with ceramics insulator 2 junction, the described section of being threaded 8 upper end and metal shell 4 are excessively provided with gasket seal 11 in place, the outside of described ceramics insulator 2 is provided with the trench ripple 21 for preventing electric arc from producing, conductor glass 5 is provided with between described metal screw 3 and central electrode 6.
Utility model works process:
A kind of spark plug of the utility model in the course of the work, primarily of metal shell 4 and insulator 2 liang of large parts, metal shell 4 is provided with the section of being threaded 8, be tightened in outside cylinder head in thread mode, metal shell 4 bottom welding grounding electrode 7, ground connection acting on is formed with car body, ignition gap 12 is provided with between grounding electrode 7 and central electrode 6, the size in gap directly affects the startup of engine, power, job stability and economy, the gap of ignition gap 12 is set to 0.6 ~ 1.0 millimeter, there is preferably stability and high power, high-tension electricity will burst out spark through this gap, the high-tension current come from outside ignition distributor conducts electricity through central electrode 6, discharge at the ignition gap 12 of lower end, mist in some gas cylinder, engine engine just obtains the energy and power output.
Further, the outside of ceramics insulator 2 is provided with the trench ripple 21 for preventing electric arc from producing, can prevent the generation of leakage of electricity, also be provided with one deck polyether-ether-ketone resin layer 10 between ceramics insulator 2 and metal screw 3, polyether-ether-ketone resin is a kind of special engineering plastics of excellent performance, good mechanical property, resistance to chemical attack, fire-retardant, there is thermal endurance, shortcoming is that cost is high, and the setting of polyether-ether-ketone resin layer 10 improves the insulating properties between inner metal screw 3 and ceramics insulator 2 greatly.Further, conductor glass 5 is provided with between metal screw 3 and central electrode 6, conductor glass 5 has very high intensity, can conduct electricity on the one hand, the high pressure of mist burning can be born on the other hand, ensure that sealing property simultaneously, inner washer 9 is provided with in metal shell 4 and ceramics insulator 2 junction, excessively gasket seal 11 is installed place in the described section of being threaded 8 upper end and metal shell 4, further enhance the sealing property between each parts of spark plug, ceramics insulator 2 adopts the pottery based on aluminium oxide to make, have high voltage withstanding, shock-resistant, the characteristics such as resistance to chemical corrosion is strong.
Above-described embodiment is to explanation of the present utility model, is not to restriction of the present utility model, anyly all belongs to protection range of the present utility model to the scheme after the utility model simple transformation.
Claims (4)
1. a spark plug, it is characterized in that: comprise wiring nut (1), ceramics insulator (2), metal screw (3), metal shell (4) and central electrode (6), described wiring nut (1) lower end is connected with metal screw (3), described metal screw (3) outside cover has ceramics insulator (2), the outside cover of described ceramics insulator (2) lower end has metal shell (4), one deck polyether-ether-ketone resin layer (10) is also provided with between described ceramics insulator (2) and metal screw (3), described metal screw (3) lower end is provided with central electrode (6), described central electrode (6) end portion runs through ceramics insulator (2) and metal shell (4), the lower end of described metal shell (4) is provided with the section of being threaded (8), the lower end of metal shell (4) is also provided with grounding electrode (7), ignition gap (12) is provided with between described grounding electrode (7) and central electrode (6).
2. a kind of spark plug as claimed in claim 1, it is characterized in that: described metal shell (4) and ceramics insulator (2) junction are provided with inner washer (9), described in the section of being threaded (8) upper end with metal shell (4) excessive place, gasket seal (11) is installed.
3. a kind of spark plug as claimed in claim 1, is characterized in that: the outside of described ceramics insulator (2) is provided with the trench ripple (21) for preventing electric arc from producing.
4. a kind of spark plug as claimed in claim 1, is characterized in that: be provided with conductor glass (5) between described metal screw (3) and central electrode (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520635904.1U CN205004616U (en) | 2015-08-21 | 2015-08-21 | Novel spark plug |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520635904.1U CN205004616U (en) | 2015-08-21 | 2015-08-21 | Novel spark plug |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205004616U true CN205004616U (en) | 2016-01-27 |
Family
ID=55161488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520635904.1U Expired - Fee Related CN205004616U (en) | 2015-08-21 | 2015-08-21 | Novel spark plug |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205004616U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283442A (en) * | 2018-11-06 | 2019-01-29 | 云南电网有限责任公司红河供电局 | A kind of string benefit spark gap impact test apparatus |
-
2015
- 2015-08-21 CN CN201520635904.1U patent/CN205004616U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109283442A (en) * | 2018-11-06 | 2019-01-29 | 云南电网有限责任公司红河供电局 | A kind of string benefit spark gap impact test apparatus |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160127 Termination date: 20160821 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |